robot getting started guide eng 2010 metric
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Autodesk Robot Structural Analysis
Metric Getting Started Guide
October 2008546A1-050000-PM03A
This manual text is printed
on 40 percent postconsumer
waste recycled paper
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2009 Autodesk, Inc. All Rights Reserved. Except as otherwise permitted by Autodesk, Inc., this publication, or parts thereof, may not reproduced in any form, by any method, for any purpose.
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TABLE OF CONTENTS
Autodesk Robot Structural Analysis - Getting Started Guide
TABLE OF CONTENTS
AUTODESK ROBOT STRUCTURAL ANALYSIS
FAST OVERVIEW ............................................................... 1
General description of the program ........................................................................ 3
Robot modules ........................................................................................................ 3
Robot screen layout .................................................................................................. 5
Basic configuration of the program .......................................................................... 6
Preferences ............................................................................................................. 6Job Preferences ....................................................................................................... 7
Navigation techniques ..............................................................................................8
Methods of working with Robot interface .............................................................. 10
System menu ......................................................................................................... 10
View menu ..................................................................................................... 12
Geometry menu ............................................................................................. 12
Loads menu ................................................................................................... 12
Analysis menu ............................................................................................... 13
Results menu ................................................................................................ 13Tools menu .................................................................................................... 13
Window menu ................................................................................................ 14
Help menu ..................................................................................................... 14
Layout System ....................................................................................................... 14
Entering the structural analysis data ..................................................................... 17
Analyzing the structure .......................................................................................... 20
Results preview ...................................................................................................... 22
Graphical results for beams ......................................................................... 22
Graphical results for surfaces ...................................................................... 24Tabular results .............................................................................................. 26
Reports and printout composition ......................................................................... 27
Advanced analysis and design ................................................................................ 28
List of shortcuts ..................................................................................................... 29
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ii TABLE OF CONTENTS
Autodesk Robot Structural Analysis - Getting Started Guide
3D FRAME STRUCTURE ................................................... 31
Configuration of the program ................................................................................. 33
Model Definition ..................................................................................................... 34Bars definition (frame 2D) ............................................................................. 34
Supports definition ........................................................................................ 35
2-bay frame definition ................................................................................... 36
Load case definition ...................................................................................... 37
Loads definition for particular load cases .................................................... 38
Copying existing frame.................................................................................. 41
Definition of lateral beam ............................................................................. 43
Definition of cross bracings .......................................................................... 44
Copying defined bars (lateral beam and bracings)....................................... 46Structure Analysis .................................................................................................. 47
Results Preview...................................................................................................... 48
Displaying beam results graphically ............................................................ 48
Displaying results on bars in tabular form ................................................... 50
Stress analysis .............................................................................................. 51
Preparation of printouts ......................................................................................... 54
Capturing views and data for the calculation note .................................... 54
Preparing printout composition .................................................................... 55
Printing and exporting the calculation report .............................................. 57
RC AND STEEL MIXED STRUCTURE ................................. 61
Configuration of the program ................................................................................. 63
Model definition ...................................................................................................... 64
Definition of structural axes ......................................................................... 64
Section definition ........................................................................................... 67
Bars definition ............................................................................................... 70
Supports definition ........................................................................................ 76Load cases definition .................................................................................... 77
Definition of loads for predefined load cases ............................................... 79
Changing the structure type ......................................................................... 89
Definition of additional structural axis ......................................................... 89
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iTABLE OF CONTENTS
Autodesk Robot Structural Analysis - Getting Started Guide
Copying existing frame.................................................................................. 91
Definition of lateral beams ........................................................................... 93
Definition of slab ........................................................................................... 96
Offset definition ............................................................................................. 99Definition of a wall....................................................................................... 104
Definition of wall support ............................................................................ 109
Meshing parameters definition ................................................................... 110
Definition of slab loads ................................................................................ 114
Structure Analysis ................................................................................................ 115
Results Preview.................................................................................................... 118
Panels results in map form ........................................................................ 118
Deformation of the structure ...................................................................... 121
Results on panels in tabular form .............................................................. 123
Integration of Autodesk Robot Structural Analysis with
RevitStructure ............................................................ 129
Export Revit model to Robot................................................................................. 131
Opening project in RevitStructure ............................................................ 131
Sending data to Robot ................................................................................. 132
Structure Analysis in Robot .................................................................................. 141Displaying items on the screen ................................................................... 142
Presentation of load cases transferred from Revit Structure ................. 143
Meshing parameters definition ................................................................... 145
Calculations ................................................................................................. 148
Results preview - displaying panel results in map form ............................ 149
Results preview - displaying results on bars in diagram form .................. 152
Modification of the Structure in Robot ................................................................. 155
Replacing sections ...................................................................................... 155
Deleting bars ............................................................................................... 158Adding new elements .................................................................................. 159
Update Revit Model from Robot ........................................................................... 164
Updating RevitStructure project .............................................................. 164
Model changes presentation ....................................................................... 172
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AUTODESK ROBOT
STRUCTURAL ANALYSIS
FAST OVERVIEW
Synopsis:
Te purpose o this Manual is introduce the novice user to the Autodesk Robot
Structural Analysis system and to provide some guidance into the program configura-
tion, menu system and navigation techniques. It will also show the many and variedmethods o input o data and extraction o results.
It is assumed that Autodesk Robot Structural Analysis 2010 is installed on the PC.
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GENERAL DESCRIPTION OF THE PROGRAM
Autodesk Robot Structural Analysis - Getting Started Guide
GENERAL DESCRIPTION OF THE PROGRAM
What is Autodesk Robot Structural Analysis?
Autodesk Robot Structural Analysis (Robot) is a single integrated program used
or modeling, analyzing and designing various types o structures. Te program allows
users to create structures, to carry out structural analysis, to veriy obtained results, to
perorm code check calculations o structural members and to prepare documentation
or a calculated and designed structure.
Robot key eatures o the Commercial version are shown below:
Linear, nonlinear and dynamic (modal, spectral, seismic, time history, push over,P-Delta, buckling deormation, plasticity) structure analysis
working in a multilingual environment (15 languages independently set to user
interace, designing and calculation notes)
working in a multinational environment - designing according to over 50 de-
sign codes
rames, plates and shells, plus a powerul GUI modeler and mesher allows the
user to define virtually any shape or configuration o structure you analyze the
true structure geometry
quality bi-directional integration with Revit Structure, plus integration throughIFC, CIS2 etc.
an open API to allow the user to interace their own applications or pre and/or
post processing
ROBOT MODULES
Robot is a single product with many unctions and a common user enviroment.
Once Robot is activated (click on the appropriate icon on the desktop or choose the
appropriate command rom the taskbar), the window shown below (Figure 2.1) will
appear on the screen. Te window is used to select the type o structure that will be
analyzed or to load an existing structure.
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4 ROBOT MODULES
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 2.1 - Robot modules window
When the cursor is positioned on an icon, a short description of its function is displayed.
NOTE:
Te most commonly used icons are described below:
2D Frame Analysis
2D Truss Analysis
Grillage Analysis
3D Truss Analysis
3D Frame Analysis
2D FE Plate Analysis
Shell Analysis used to modelsurfaces of any shape in 3d
structures
Bulding Analysis
Open the previously createdproject file
Open a new project
Table 2.1 - Robot basic modules
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ROBOT SCREEN LAYOUT
Autodesk Robot Structural Analysis - Getting Started Guide
ROBOT SCREEN LAYOUT
GRAPHIC VIEWER / EDITOR
edit, view, tools, preferences
STANDARD TOOLBAR these options are mainly associated with non structuralitems, such as print, save, undo etc.
LAYOUT SYSTEM
designed totake the new userthrough a modelfrom start to finish,while opening pre-defined windowsfor selected tasks
STRUCTURE MODEL TOOLBAR sections, nodes, members, supports,loads etc.
OBJECTINSPECTOR managementof structural
objectsVIEW MANAGER selection of a work plane; switching between 2D and 3D view
Figure 3.1 - Robot typical screen layout
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6 BASIC CONFIGURATION OF THE PROGRAM | Preferences
Autodesk Robot Structural Analysis - Getting Started Guide
BASIC CONFIGURATION OF THE PROGRAM
Te two options, Preferencesand Job Preferences, allowing the user to set pro-
gram parameters in the Robot system, are available rom the menu by opening toolbaroolsand pressing the appropriate icon:
Tools icon
Job Preferences iconPreferences icon
Figure 4.1 - Tools toolbar
Preferences
Te Preferencesdialog box presented below is used to define basic parameters
in the program:
REGIONALSETTINGSadjust thedatabases(profiles,
materials),units andcodes to thestandards ofa country
Robot is a multilingual program the user can independently set differentlanguages for input and printout, if desired
Figure 4.2 - Preferences menu
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BASIC CONFIGURATION OF THE PROGRAM | Job Preferences
Autodesk Robot Structural Analysis - Getting Started Guide
Te most regularly used options are:
languages - selection o regional settings (definition o the country whose codes
materials and regulations - e.g. code combination regulations - will be used dur-ing the design process, calculations and structure design) and working and print-
out language
general parameters (saving parameters, number o recently used structures,
sound on/off etc.)
display parameters (colors and onts or screen components)
toolbar and menu (menu type and the type o toolbars)
printout parameters (colors and onts or printouts, scale and symbols,
line thickness)
protection parameters (protection, authorization) - or changingthe system protection
COM interace - presentation o the registered additional programs/modules
Job Preferences
Te Job Preferencesdialog box, presented below, allows you to define general
program parameters to be used in a given project:
Figure 4.3 - Job Preferences menu
Te most important unctions are:
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8 NAVIGATION TECHNIQUES
Autodesk Robot Structural Analysis - Getting Started Guide
number units and ormats (dimensions, orces, possibility o unit edition)
materials (selection o material set, according to the country and the possibility
o creating user-defined material)
section database (selection o the appropriate database with member sections)structure analysis parameters (selection o the static analysis method and defini-
tion o basic parameters or dynamic and non-linear analysis; selection o analy-
sis types, possibility o saving results or seismic analysis combination o seis-
mic cases)
parameters or generation o surace finite element meshes or plates and shells
NAVIGATION TECHNIQUES In the Robot sofware, various mechanisms have been introduced to make struc-
ture definition simple and more efficient. According to the type o operation perormed,
the mouse cursor changes its shape to:
hand a selection mode or highlighting entities
cross pointer - during node and bar definition, to define precise points e.g. start
and end points o members
shape o the appropriate eature e.g. when adding sections the cursor is in shapeo an I section, when adding supports a support icon appears etc.
Te cursor operation in a viewer by means o the third mouse button (or wheel) is
identical to that in the AutoCAD program. Te ollowing cursor support modes
are available:
wheel rotation zoom in / out
wheel rotation + Ctrl key horizontal panwheel rotation + Shif key vertical pan
pressing the third button - pan
double-click with the third button initial view
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NAVIGATION TECHNIQUES
Autodesk Robot Structural Analysis - Getting Started Guide
Te user should take note o the work capabilities in 3D views when the menu option
Dynamic View(View Dynamic View Dynamic View) is switched on. 3D viewing
enables work in one o five modes:
our simple modes: 3D rotation, 2D rotation, zoom and pan
one multi-unction mode
Te user may switch rom one work mode to another by selecting an appropriate option
in the View / Dynamic View menu, on the View toolbar and in the context menu. Afer
choosing a work mode, the mouse cursor movement (with mouse lef button pressed)
brings about the relevant change in the 3D view:
3D Rotation rotates a structure in all planes2D Rotation - rotates a structure in the plane parallel to the screen plane
Zoom movement down the view zooming in / zooming out a structure to /
rom the screen plane
Pan movement in the view plane (structure shif with respect to the
screen center)
Te multi-unction mode (Rotation / Zoom / Pan) enables work using all the modes
at the same time. Te viewer o 3D view is divided into quarters and each o them is
ascribed one o the modes:
top left: 3D rotation top right: pan
bottom left: zoom bottom right: 2D rotation
Table 5.1 - Cursor modes
Once the cursor is positioned in the relevant quarter o the screen, the cursor shape
changes (see the icons above).
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10 METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analysis - Getting Started Guide
Navigation tool (ViewCube) is also available in the program. ViewCube is a 3D
interactive tool that lets you reorient a view and set the current orientation o a struc-
ture model. Clicking a predefined ace, edge or corner on the ViewCube, you can re-
orient the view o a model. Moreover, clicking and dragging the ViewCube lets youreorient the model to different directions. Access the ViewCube option by selecting
the View > ViewCube - Properties.
Figure 5.1 - ViewCube
Te ViewCube also uses the compass to indicate a direction rom which you view a
model. o change the viewpoint o a model, click a selected direction on the compass
(N, S, E, W). You can show or hide the compass rom the ViewCube context menu afer
you right-click on the ViewCube and select the Show compass option.
METHODS OF WORKING WITH
ROBOT INTERFACE
Tere are two methods to work with Robot - by using System Menu to entering
data, or special Layout System.
System menu
Te system menu consists o two parts: a text menu and toolbars with appropriateicons. Tey can be used interchangeably, according to the users needs and preerences.
Both are displayed in the same way - as a horizontal bar at the top o the screen (ad-
ditionally, or some layouts in the Robot system, another toolbar with most requently
used icons is displayed on the right side o the screen).
Basic options available within the modules are accessible both rom the text menu and
the toolbar.
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1METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analysis - Getting Started Guide
Tough contents o the text menu and toolbars or successive modules vary, the main
options are always available regardless o which module is active.
Te figure below illustrates both types o menus (the main menu that appears once the
Start layout is selected is shown as an example):
STRUCTUREMODEL bar- additionalside toolbarwith mostfrequentlyused icons
SYSTEM MENU text menu& standard toolbar
Figure 6.1 - System menu
Options available in the text menu are grouped as ollows:
File menu
FILE MENU contains options for:File management (New, Open, Save etc.)Calculation notes and drawing printouts(Screen Capture..., Printout Composi-tion... etc.), a list of information aboutproject and a list of recently open files
Figure 6.2 - File menu window
Edit menu
Figure 6.3 - Edit menu window
EDIT MENU contains options for:Elements edition (Undo, Redo, Cut,Copy etc.)Selection (Select...,Select All)Selection using filters (Select Special)Model modification (Edit, ComplexEdit..., Divide, Intersect etc.)
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12 METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analysis - Getting Started Guide
View menu
VIEW MENU contains options for:
2D/3D view management of a structuresmodel (Dynamic View, Zoom, Pan etc, Workin 3D)Structure attributes to be presented on thescreen (Display); definition of grid parame-ters (Grid)Selection of tables with data or results(Tables) and saving defined views of a stru-cture (History)
Figure 6.4 - View menu window
Geometry menu
GEOMETRY MENU - contains options to:Select or modify a type of a structureDefine a model construction axis (Axis Definition)Define structural data - nodes, bars, panels andauxiliary objectsDefine materialsDefine bar profiles and their orientation anddirection of local coordinate system
Define supports and many other structural items
Figure 6.5 - Geometry menu window
Loads menu
LOADS MENU contains options to define loadcases and combinations
Figure 6.6 - Loads menu window
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1METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analysis - Getting Started Guide
Analysis menu
ANALYSIS MENU contains options to:
Start the calculation processChange from linear to non linear, P-Deltaor bucklingSet up dynamic analysesDesign concrete beams, columns andsurfaces
Figure 6.7 - Analysis menu window
Results menu
RESULTS MENU contains options to:Display beam results graphicallyDisplay detailed results for beams graphi-callyDisplay results for surfacesDisplay tables that easily be edited, sorted,filtered, exported to MS Exceletc.
Figure 6.8 - Results menu window
Tools menu
Figure 6.9 - Tools menu window
TOOLS MENU contains differ-ent types of configuration options(Preferences, Job Preferences)
and possibility to define users in-terface, menu, shortcuts and formof calculation notes
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14 METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analysis - Getting Started Guide
Window menu
WINDOW MENU offers options to ma-nage and arrange the graphic windowsand an option to activate/deactivate theObject Inspector
Figure 6.10 - Window menu
Help menu
HELP MENU contains help options andvarious product information items
Figure 6.11 - Help menu window
Layout System
Te second method o work with Robot is by using the special layout system.
Robot has been equipped with a layout mechanism that simplifies the design process.
Te layouts in Robot are specially designed systems o dialog boxes, viewers and tables
that are used to perorm specific defined operations.
Layouts available in Robot were created to make consecutive operations leading to
defining, calculating, and designing the structure easier the layouts guide the userthrough the process rom model generation to results.
In order to make the system as easy to use as possible, each layout has its own predefined
set o windows which are automatically opened on entering the layout and closed
on exit.
Layouts are available rom the selection list ound in the right, upper corner o the
screen:
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1METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analysis - Getting Started Guide
SYSTEM LAYOUT SELECTION WINDOW
A list of standard layouts available in Robot.This example shows the layouts for a shell structure andthe layouis vary depending on the structure type
Figure 6.12 - System layout selection window
Te layout order and arrangement ollows a chronological process, starting rom defin-ing nodes, beams, then supports, sections etc.
RESULTS
Contains layouts showing beam results, maps on surfacesetc.
DEFINITION OF STRUCTURE MODELContains layouts relating to the geometry and basic defini-tion of a structural model, such as supports, sections etc.
DESIGNContains layouts relating to steel and concrete design, slabdesign etc.
Figure 6.13 - System layout selection window - chronological layout order
A typical layout or nodes is shown note that each window cannot be closed untila new layout is selected.
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16 METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analysis - Getting Started Guide
Dialog boxes to show entered data. It is alsopossible to enter data manually in this screenor to paste from programs such as MS Excel
STRUCTURE MODEL TOOLBAR this (as in otherlayouts) contains data relating to structural enti-ties, but limited to the type of data that is appropri-ate to node definition
LAYOUT SELECTION PULL DOWN MENU in this case layout Nodes is selected
GRAPHIC VIEWER / EDITOR
Figure 6.14 - Typical layout for nodes
However it is not necessary to define the structure according to the layout order. Tis
may be done in any order chosen by the user. Te layout system was introduced in sucha way that Robot structure definition is intuitive and efficient.
All Robot operations may be perormed without using the defined layouts but by
using system menu instead or also taking advantage o both methods (simultaneously)
according to the users needs and preerences.
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1ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analysis - Getting Started Guide
ENTERING THE STRUCTURAL ANALYSIS DATA
Tere are 3 ways to enter data:
By entering data using the appropriate text dialog box or direct in a table (or
pasted rom MS Excel)
By entering data in the Robot GUI using tools or graphic structure definition
- i.e. snap grids or structural axes.
Examples o data entering using the System Layout mechanism (or Bars and
Loads options) are presented below:
1.
2.
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18 ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analysis - Getting Started Guide
GRAPHIC VIEWER/EDITOR allowsthe user to enter and view data Dialog box to load cases definition
Toolbar with load tools (including
advanced options such as soil loading,vehicle loading etc.)
Dialog box to define different types ofloads (node, beam, surface, self-weight)
Data concerning defined load cases (case,
load type etc.) in tabular form
Figure 7.1 - Examples of loads data entering with System Layout mechanism
The updating of data is dynamic tables reflect graphics and vice versa at all times.
NOTE:
By entering data in another application and importing into Robot - several file
ormats are supported including:
DXF, DWG, IFC, SDNF (steel detailing neutral file), CIS/2. A dynamic link to
and rom Revit Structure also provides bi-directional integration.
As the preparation o the structural model progresses, the user can control ex-
actly what is seen on the screen by using the Displaysettings (it is available by
3.
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1ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analysis - Getting Started Guide
pressing icon rom context menu or direct rom the bottom, right corner on
the Robot screen):
DISPLAY allows the userto switch on and off a wideselection of items, includingnode and members numbers,section shapes, supports, FEmesh and also sets up hiddenline and render options.A wide range of customizationoptions allows to the userto define a view of structureas required exactly to userspreferences.
Figure 7.2 - Display window
Afer defining the model data, the user now proceeds to the analysis stage.
However, prior to this stage, the model must be discretized into finite elements.
Robot has wide ranging capabilities or automeshing the structure and meshing isgenerally a very ast process or even the largest o models. Some o the meshing pa-
rameters are shown below:
MESH REFINING OPTIONS allowthe user to easily refine the mesh in
user selected areas.
AUTOMESHING PARAMETERS can mesh all or part of thestructure and also define mesh density and meshing type
Figure 7.3 - FE Mesh Generation toolbar
Example o structure with meshed panels is shown below:
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20 ANALYZING THE STRUCTURE
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 7.4 - Example of meshing
ANALYZING THE STRUCTURE
Structural analysis can be started by selecting one o the two calculation buttons
in the horizontal toolbar.
Figure 8.1 - Calculation icons
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2ANALYZING THE STRUCTURE
Autodesk Robot Structural Analysis - Getting Started Guide
Te icon on the lef side starts the calculation process. Te second icon is used to set di-
erent analysis parameters. Tis option allows the user to change specific analysis types
rom linear to non linear or to set up dynamic analysis.
Figure 8.2 - Changing analysis parameters
As a deault, all analysis is set as linear static, unless the user has included some mem-bers or parameters such as cables, tension only, hinges etc. In such a case the analysis
type is automatically changed to non linear and Robot will apply the loads incremen-
tally to ensure the true structural equilibrium and a final exact geometry is reached.
Robot has many non linear parameters that the user can set in the case o non conver-
gence o analysis data, including the options to set ull or modified Newton-Raphson
and step halving. In addition to general non linear calculations, the user can also set
the ollowing analysis options:
P-DeltaModal
Seismic (to codes such as IBC, UBC, EC etc.)
Spectral response
ime history
Buckling
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22 RESULTS PREVIEW | Graphical results for beams
Autodesk Robot Structural Analysis - Getting Started Guide
RESULTS PREVIEW
Te Results Layout shows a wide range o analysis results presentation.
All of results preview options are also available through the RESULTS pull-down menu.
NOTE:
User can view results of calculations by selectingthe results layout, where a set of submenus for
particular results then appears
Figure 9.1 - Results type selection from results layout
Results can be split into various categories, each having their own characteristics.
Graphical results for beams
(graphical results or individual beams, or selection o beams, or groups o beams
presentation - bending moment, shear, stress, deflection animation o results in .avi
ormat etc.)
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2RESULTS PREVIEW | Graphical results for beams
Autodesk Robot Structural Analysis - Getting Started Guide
Dialog box selects type of result to be displayedGraphical presentation of results as diagramsin graphic viewer/editor
Side toolbar shows additional results of structuralanalysis in tabular form, graphical form, plus links todesign modules
Tables of results can easily be con-verted to MS Excelformat by clickingright hand mouse
Figure 9.2 - Results in the diagrams form
Tere is also easy acces to calculation results or single bars. In context menu o the bar
(right mouse click on the element, then select Object Properties option) user can seediagrams and values or selected quantity o internal orces.
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24 RESULTS PREVIEW | Graphical results for surfaces
Autodesk Robot Structural Analysis - Getting Started Guide
A right mouse click on any bardisplays its properties and results (ifanalysis has been carried out)
Figure 9.3 - Calculation results for single bar
Graphical results for surfaces
(graphical results or suraces, contour maps or bending, deflection, stress, animations;
reduced results showing global orces in surace cuts, including direct reduced results
or cores and stiff diaphragms)
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2RESULTS PREVIEW | Graphical results for surfaces
Autodesk Robot Structural Analysis - Getting Started Guide
Graphical presentation of result maps ingraphic viewer/editor Dialog box to select type of map to display
Side toolbar shows additional results of structuralanalysis in tabular form, graphical form, plus linksto design modules
Figure 9.4 - Results in the maps form
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26 RESULTS PREVIEW | Tabular results
Autodesk Robot Structural Analysis - Getting Started Guide
Tabular results
Tables can easily be edited, enveloping results,setting limits, filtering data by load case etc.
Dialog box used to define contents of thetable. It is available from the menu activatedby pressing the right mouse button when thecursor is located in the table, and selectingTABLE COLUMNS
Figure 9.5 - Tabular results
Robot tables can be easily transerred to MS Excel by pressing the right hand mouse
button.Inside Robot, the tables can be manipulated in many ways, in the same way as input
tables:
filtering data or specific load cases, members or groups o members
filtering data inside or outside user defined limits showing global maxima and
minima or selected members, nodes or suraces
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2REPORTS AND PRINTOUT COMPOSITION
Autodesk Robot Structural Analysis - Getting Started Guide
REPORTS AND PRINTOUT COMPOSITION
Robot has a built in report generator which permits the user to create a user
defined printout or a Project.Tere are two options on the menu bar - Printout Composition and Screen Capture
which help to prepare the final calculations notes, tables and graphic printouts.
Tables can easily be edited, enveloping results, set-
ting limits, filtering data by load case etc.
Dialog box used to define contents of the table - it isavailable from the menu activated by pressing theright mouse button when the cursor is located inthe table, and selecting TABLE COLUMNS
Figure 10.1 - Printout Composition and Screen Capture icons
Te Standardtab lists a set o predefined options or printout, which can be mixed with
screen captures to the users requirements.
List of final printout, show-ing order of data to beprinted - the dashed redline indicates a page breakbetween each item
Predefined list of printout components
Various method of savingthe report in .doc, htmland sxw formats
Figure 10.2 - Printout composition
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28 ADVANCED ANALYSIS AND DESIGN
Autodesk Robot Structural Analysis - Getting Started Guide
A key eature o Robot is that all o the data in the program is saved in a com-
mon binary file this data includes input, output, design plus also printout data. When
structural data is altered or amended the output and printout (tables and graphics) are
automatically updated on re-analysis to reflect the new results o the analysis. Tis isparticularly useul when considering a schematic design or sensitivity study since the
printout is automatically updated at every analysis step to reflect the current structural
configuration.
ADVANCED ANALYSIS AND DESIGN
Following analysis o the structure, the user may wish to take advantage o manyo the additional eatures such as:
Steel design
Concrete design or beams, columns, floors
Advanced analysis P-Delta, dynamic etc.
Tese items are beyond the scope o this Getting Started Manual and are covered in
more depth in the help or Robot.
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2LIST OF SHORTCUTS
Autodesk Robot Structural Analysis - Getting Started Guide
LIST OF SHORTCUTS
In order to Press
select all Ctrl + Acopy a text or a drawing Ctrl + C
open a new project Ctrl + N
open an existing project Ctrl + O
start printing Ctrl + P
save the current project Ctrl + S
cut a text or a drawing Ctrl + X
repeat the last operation Ctrl + Y
paste a text or a drawing Ctrl + V
undo the last operation Ctrl + Zdisplay the 3D view of a structure (3D XYZ) Ctrl + Alt + 0
project a structure on XZ plane Ctrl + Alt + 1
project a structure on XY plane Ctrl + Alt + 2
project a structure on YZ plane Ctrl + Alt + 3
zoom in the structure view on screen Ctrl + Alt + A
display the initial view of the structure (defined by the initial an-
gles and scale)
Ctrl + Alt + D
exploded view of structure elements (on/off) Ctrl + Alt + E
zoom window Ctrl + Alt + Lturn on/off section drawing display Ctrl + Alt + P
screen capture Ctrl + Alt + Q
zoom out structure view on screen Ctrl + Alt + R
turn on/off section symbol display Ctrl + Alt + S
rotate continuously around the X axis Ctrl + Alt + X
rotate continuously around the Y axis Ctrl + Alt + Y
rotate continuously around the Z axis Ctrl + Alt + Z
delete a text or a drawing Del
call Robot Help system for the active option in the active dialogbox
F1
call text editor F9
reduce structure attributes (supports, numbers of nodes, bars,
loads) presented on screen
PgDn
enlarge structure attributes (supports, numbers of nodes, bars,
loads) presented on screen
PgUp
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3D FRAME STRUCTURE
Synopsis:
Te purpose o this example is to show the ease o definition, analysis and report
generation or a simple steel 3D rame in Robot.
For this example, it is assumed that Autodesk Robot Structural Analysis 2010 is in-
stalled on the PC.
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3CONFIGURATION OF THE PROGRAM
Autodesk Robot Structural Analysis - Getting Started Guide
CONFIGURATION OF THE PROGRAM
Following installation o Robot, the user may configure the working parametersor Preerences. o do this:
Start the Robot program (click the appropriate icon or select the command rom
the taskbar).
On the opening window, displayed on the screen click the last but one icon
in the first row (Frame 3D Design). Other options are or 2d and 3d
rames, models with suraces such as walls and floors, access to stand alone de-sign modules etc.
Selectools > Preferencesrom the text menu or click on the , thena
icons on the toolbars to open the Preerences dialog box. Preerences allow the
user to set up working and printout languages, onts, colors etc.
Figure 1 - Regional settings in Preferences dialog box.
Select the first preerences option - Languages(tree on the lef part o the win-
dow), then as the Regional settingschoose United States.
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34 MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Regional settingsset the default databases (profiles, materials), units and codes to the stan-dards of a country. In the example above, we have chosen American section database (AISC)and metric data units: [m],[cm], [kN].
NOTE:
Click Acceptto close the window.
You can check active units in right, bottom corner of the screen. In this example should bethe display: [m] [kN] [Deg].
NOTE:
MODEL DEFINITION
Bars definition (frame 2D)
In this step, you create rame members consisting o 2 columns and a beam.
Click icon (right side o the screen) to open the Barsdialog box.
Set Bar type: as Column whatever is selected is not important or analysis, but
affects the design parameters or subsequent member design, such a buckling
length, position o restraint etc.
Define Section: as W14x211.
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3MODEL DEFINITION | Supports definition
Autodesk Robot Structural Analysis - Getting Started Guide
If theW14x211section is not available on the list, you should click the () button locatedbeside the Sectionfield and add this section from the database. In opened New sectiondialog box, in Section selectionfield for Database: AISC choose Family: Wthen Section:W14x211. Click Addand Closethe box.
NOTE:
There are many extra options that may be entered for fabricated mem-bers, tapering sections and also for beams that the user wants to defineas able to exhibit plasticity.
INFO
Enter the ollowing points in the BeginningandEndfield:
to define first column o rame: (0;0;0) and (0;0;3) Add
to define second column: (7;0;0) and (7;0;3) Add
Set Bar type: as Beam.
Define Section: as W14x211.
o define a beam in the structure, enter the ollowing points in the Beginningand Endfield: (0;0;3) and (7;0;3) Add.
Closethe Sectionwindow.
Supports definition
In this step, you create supports or the rame structure.
Click icon (right side o the screen) to open the Supportsdialog box.
o choose structure nodes, the user can either select a support type rom the list
and then select a node or nodes by click or window, or the user can directly input
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Autodesk Robot Structural Analysis - Getting Started Guide
MODEL DEFINITION | 2-bay frame definition
the node number and apply. o make a window selection, press the right hand
mouse key and then the Selectmenu option and window around the nodes to be
supported and click inside the selection box.
From the Supportsdialog box select the Fixedsupport icon.
Click Apply.
2-bay frame definition
In this step, we create a 2 bay rame by mirroring the existing rame.
Select all bars (by window or CRL+A) and mirror them Edit > Edit > Vertical
Mirrorby vertical axis o the right column (just click on this axis).
There are many editing possibilities: copy, move, divide, intersect,rotation etc. to make modeling of structure easier and more effective.
INFO
Click icon (top o the screen) to show the whole structure.
o display bars and nodes numbers click icon (bottom lef corner o the
screen) then in the Display dialog box tick on Favorites > Node numbersand
Favorites > Bar description > Bar numbers.
Click Applyand OK.
Click , icon at the bottom o the screen to display supports symbol and
sections shape.
Te rame should appear as below:
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3MODEL DEFINITION | Load case definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 2 - Frame with supports and sections shape view.
Load case definition
In this step, you define load cases (their number, nature and description).
Click icon (right side o the screen) to open the Load ypesdialog box.
Click Newto define adead load(sel-weight) with a standard name DL1.
The self-weight load is automatically applied in the first row to all structure bars (in the Zdirection).
NOTE:
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38 MODEL DEFINITION | Loads definition for particular load cases
Autodesk Robot Structural Analysis - Getting Started Guide
Choose in the Naturefield live, then Newto define a live loadwith a standard
name LL1. We have now defined 2 load cases.
Choose in the Naturefield wind, then Newto define awind loadwith a stan-dard name WIND1 (in the same way define WIND2). We have now defined
4 load cases.
Closethe dialog box.
Loads definition for particular load cases
In this step, you define loads or each created load case.
o define loads or LL1 case select the 2nd load case in the list o defined
cases field:
Figure 3 - Load case LL1 selection.
Click icon (right side o the screen) to open the Load Definition dialog
box.
On the Bartab click icon to open the Uniform load dialog box, then type
value o load -45.0in the pZfield, click Add (Uniform loaddialog box is auto-matically closed).
Select beam span (no.3) indicate them or just type 3in field Apply to.
Click Apply.
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3MODEL DEFINITION | Loads definition for particular load cases
Autodesk Robot Structural Analysis - Getting Started Guide
On the Bartab click icon to open rapezoidal load dialog box, then type
values o loads and coordinates as shown below, click Addand close the box. Tis
generates a varying load on the beam.
Figure 4 - Trapezoidal load definition.
Select beam span (no.5) indicate the beam or just type 5in field Apply to.
Click Applyand close Load Definitiondialog box.
o define loads or WIND1case select the 3rdload case in the list o defined cases field.
On the Nodetab in Load Definitiondialog box click icon to open NodalForce dialog box, then type value o load 9.0 in the FXfield, click Addand close
the box.
Select the upper node o the lef column (no.2) graphically or by cross-window
or just type 2in field Apply to.
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40 MODEL DEFINITION | Loads definition for particular load cases
Autodesk Robot Structural Analysis - Getting Started Guide
Click Applyand close Load Definitiondialog box.
o define loads or WIND2case select the 4thload case in the list o defined cases field.
On the Bartab inLoad Definitiondialog box click icon to open Uniform
load dialog box, then type value o load -20.0in the pXfield (pY=0; pZ=0), click
Addand close the box.
Select the right column (no.4) indicate it or just type4in field Apply to.
Click Applyand close Load Definitiondialog box.
Close theLoad ypesdialog box.
Click , icons at the bottom o the screen to turn displaying loads sym-
bols and loads values description on.
Te loads can also be seen in tabular orm click ablesicon (right side
o the screen) then tick Loadson or select View > ables > Loads command
(see below).
All tables in Robot can be exported to MS Excelby simply clicking theright hand mouse button in the table.
INFO
Figure 5 - Load cases data in tabular form.
In the list o defined load cases choose the load case or which the loads will be
displayed:
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4MODEL DEFINITION | Loads definition for particular load cases
Autodesk Robot Structural Analysis - Getting Started Guide
All defined loads cases will be displayed together (as shown below):
Figure 6 - All defined load cases view.
Copying existing frame
In this step, we copy the 2D rame to generate 3D structure. When we copy that rame,
all attributes attached to it (loads, sections, supports etc.) are also copied:
Click icon (top o the screen) to open the View dialog box, then
or choose View > Work in 3D > 3Dxyzrom the menu to select the isometric
structure view.
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42 MODEL DEFINITION | Copying existing frame
Autodesk Robot Structural Analysis - Getting Started Guide
Click CRL+A to select all o the structure.
Editthen ranslation or select the Edit > Edit > ranslateoptionrom the pull-down menu to open the ranslationdialog box.
In ranslation vectorfield type coordinates as shown below (be sure that in Edit
modeoption Copy instead oMoveis checked on and Number of repetitionsis 1).
Figure 7 - Copy frame parameters definition.
Click Execute second rame should be display on the screen.
Close the ranslation dialogbox.
Click icon to show the whole structure. Te structure should look as
shown below:
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4MODEL DEFINITION | Definition of lateral beam
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 8 - 3D View of copied frame.
Definition of lateral beam
In this step, you define beams to join the selected rames together:
Click icon (right side o the screen) to open the Barsdialog box.
In Barsdialog box set Bar type: as Beam.
Define Section: as W12x190.
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44 MODEL DEFINITION | Definition of cross bracings
Autodesk Robot Structural Analysis - Getting Started Guide
If the W12x190section is not available on the list, one should click the ()button locatedbeside the Sectionfield and add this section to the active section list in the New section
dialog box.
NOTE:
In the fields Beginningand Endtype coordinates (as shown below) or simply select
beginning field and then graphically draw the start and end points o the member.
Figure 9 - Bars definition.
I entered by coordinates, ClickAddand close Barsdialog box.
Definition of cross bracings
Sections then New section definition or select the Geometry >Properties > Sections > New section definitionoption rom the menu to open
the New Sectiondialog box:
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4MODEL DEFINITION | Definition of cross bracings
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 10 - New section definition.
Select Section (L4x4x0.25) rom American section Database(AISC) as shown above.
ClickAdd - new section type will be added to the active Sectionslist.
Close New section definitionand Sectionsdialog boxes.
Click icon (right side o the screen) to open theBarsdialog box.
In Barsdialog box setBar type: as Simple bar.
Define Section: as L4x4x0.25.
In the fields BeginningandEndtype coordinates:
(14;0;3) (14;8;0)click Addthen (14;8;3) (14;0;0)and press Add. Or draw in the
GUI.
Close Barsdialog box.
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46 MODEL DEFINITION | Copying defined bars
Autodesk Robot Structural Analysis - Getting Started Guide
Copying defined bars (lateral beam and bracings)
In this step, you copy the recently defined bars to finish the definition o the rame:
Select the three recently defined bars just indicate them (bars no.11,12,13) -
multiple selections can be made by holding down CRL key.
Editthen ranslation or select the Edit > Edit > ranslateoption
rom the menu to open the ranslationdialog box.
In ranslation vectorfield type coordinates: (-7;0;0)or select 2 points on the
screen that represent the translation vector such as the bottom o 2 columns (besure that in Editmode option Copyis checked on) and in Number of repeti-
tions type 2.
I entered by coordinate, click Executebutton then close ranslationand Edit
dialog boxes.
Te structure should look as shown below:
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4STRUCTURE ANALYSIS
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 11 - Complete 3D frame structure view.
STRUCTURE ANALYSIS
Here we start the analysis process, but firstly we will tell Robot to make automatic
code combinations (rom any one o the list o Codes in Job Preerences):
Select Loads > Automatic Combinations option rom the menu to open the
Load Case Code Combinationsdialog box. Select the Full automatic combina-tionsoption. Te program will now automatically assign a number o combina-
tions to find the most onerous load combination.
Click OKbutton automatic calculation o code combinations will be done.
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Autodesk Robot Structural Analysis - Getting Started Guide
RESULTS PREVIEW | Displaying beam results graphically
Calculations click this icon or select the Analysis > Calculationsoption
rom the menu to start calculation process.
Once the calculations are completed the inormation: Results (FEM): Availableshould be displayed at the top o the screen.
A key strength of Robot is the possibility to define a wide range of analysis types (linearstatic, non-linear geometry and material, buckling, modal analysis, harmonic analysis,seismic analysis, time history analysis etc.)If the user wishes to see these possibilities, he/she may look in the Analysis > AnalysisTypes > Change analysis type pull down menu.
However, for this simple example, we will just assume the default linear static type of analysis.
NOTE:
RESULTS PREVIEW
Displaying beam results graphically
In this step, we display Mybending moment on bars or selected load case:
Click icon at the bottom o the screen to switch off the section shape and
simply display a stick model or all members.
In the list o defined load cases choose the desired load case to display:
Select Results > Diagrams for Bars rom the menu to open
Diagramsdialog box.
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4RESULTS PREVIEW | Displaying beam results graphically
Autodesk Robot Structural Analysis - Getting Started Guide
On theNMtab checkMy Moment(this shows the major axis bending moment
on the beams), then click Normalizebutton (to auto scale) and clickApplyto
display bending moments diagrams or all beams:
Figure 12 - Diagram of bending moment.
To display numerical values of internal forces in the Diagramsdialog box, click on tab Pa-rameters, Diagram descriptiontick labels and Apply.
NOTE:
In a similar way, diagrams that exhibit other values available rom the Diagramsdialog box can be viewed.
ick off MyMomentand Apply.
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Autodesk Robot Structural Analysis - Getting Started Guide
RESULTS PREVIEW | Displaying results on bars in tabular form
Displaying results on bars in tabular form
In this step, you display internal orces or bars or particular load cases and combinations:
Select View > ablesto open ables: Data and Resultsdialog box, then tick on
ForcesandOKto view all inormation about internal orces (Values, Envelope,
Global extremes).
Figure 13 - Example of results presentation in tabular form.
In a similar way, tables that exhibit other values available from the Tables: Data and Resultsdialog box can be viewed.The tables can easily be exported to MS Excel (by right hand mouse click) and tables canalso be sorted by choosing certain load cases, member types etc. Advanced users can alsodefine groups and display results only for these groups. Column values may be placed inorder by simply clicking the appropriate column header, for example FX.
NOTE:
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5RESULTS PREVIEW | Stress analysis
Autodesk Robot Structural Analysis - Getting Started Guide
Close the Forcestable.
Click icon at the bottom o the screen to turn sections shape back on.
Stress analysis
In this step, we learn how to obtain and analyze stress diagrams and maps or the entire
bar structure:
Switch layout to Stress Analysis - Structure. o do this go to the Robot layouts
selection combo-box (right top screen corner)
Click the Resultsoption and later the Stress Analysis - Structure.
Figure 14 - Layout selection pull-down menu (stress analysis selection).
Now the screen is divided into three main parts:the graphic viewer where the structure is displayed,the Stress Analysis -Structure dialog box to managing stress analysis. This dialogbox is used for selecting stresses and determining the manner of stress graphicalpresentationthe Stress Analysis -Structure results table to view actual values of stresses for bars
NOTE:
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RESULTS PREVIEW | Stress analysis
In the list o defined load cases choose the load case or which the results will be
displayed:
On the Diagrams tab located in the Stress Analysis - Structuredialog box select the
Maxoption rom the Misesfield, then Apply(the result should look as shown below):
Figure 15 - Stress analysis in diagram form.
This dialog box allows selecting a user-defined stress and a set of basic stress types: nor-mal, tangent, Mises and Tresca.
NOTE:
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5RESULTS PREVIEW | Stress analysis
Autodesk Robot Structural Analysis - Getting Started Guide
On the Stress Analysis - Structuredialog box tick off the Max option rom the
Mises field, then Apply.
On the Maps - Deformationtab located in the Stress Analysis - Structuredialogbox tick the Deformationoption on, then Apply.
Stress Analysis for structure - maps- click this icon or select the Results
> Stress Analysis > Stress Mapsoption rom the menu to view the structure
together with section shapes and accurate detailed stress maps on these sections
(as shown in the figure below).
Figure 16 - Stress analysis in maps form.
The size of member sections in stress maps is by default greater than the real size of
member sections so that the stress maps presented for these sections are more readable.Real proportions between the member length and dimensions of the member cross sectioncan be obtained after pressing the Homekey on the keyboard. These proportions can bemodified using the following keys on the keyboard: PgUpand PgDn.
NOTE:
Close the Stress Analysis structure (3D View)window.
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PREPARATION OF PRINTOUTS | Capturing views and data
PREPARATION OF PRINTOUTS
Robot has a powerul built in report generator that allows the user to compile and
manipulate standard data, plus screen captures o graphical and tabular data.
Capturing views and data for the calculation note
In layouts selection combo-box (right top screen corner) switch to Startlayout.
Te picture o the model is shown on the screen with no other windows. Lets as-
sume we want to print this image.
Click icon (top o the screen on the standard toolbar) to open the Screen
Capturedialog box.
Figure 17 - Screen capture parameters definition.
In the above dialog box change Screen capture orientationto Horizontal and
type name o the picture as a Structure View.
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5PREPARATION OF PRINTOUTS | Preparing printout composition
Autodesk Robot Structural Analysis - Getting Started Guide
The Screen capture updateenables the user to choose automatic update of screenshots this means that the images and data are automatically updated should the structure bechanged. Alternatively, they can be saved in JPG format.
NOTE:
ClickOKto close the box.
In the list o defined load cases choose the 2:LL1load case.
Click icon (top o the screen on the standard toolbar) to open the Screen
Capturedialog box.
In this dialog box change Screen capture orientationtoHorizontaland leave
name o the picture as a Structure Cases 2: (LL1).
Click OKto close the box.
In the same way prepare pictures: Structure Cases 3: (WIND1)and Structure
Cases 4: (WIND2)
Preparing printout composition
Here we prepare the layout o the report:
Click icon (top o the screen on the standard toolbar) to open the Printout
Composition - Wizarddialog box.
On the Standardtab, select report components (click them while pressing CRLkey) as shown below:
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PREPARATION OF PRINTOUTS | Preparing printout composition
Figure 18 - Report components selection.
Click Add to transer the marked components to the right panel which shows the
actual layout o the printout.
On the Screen Capturestab select all screenshots.
Click Addto transer marked components to the right panel.
Using icons move particular components to the order shown below:
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5PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 19 - Screen captures selection.
Printing and exporting the calculation report
In this step, we learn how to print and save the calculation note:
ClickPreview to display the report:
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PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Figure 20 - Report preview.
Before printing of the report, save your project. In this case we save it as Frame 3D.Thanks to this operation actual information about project will be used to generate the docu-mentation (i.e. project name on the title page as shown above). To change this information(and many more) later we can use File > Project propertiesoption from the top menu.
NOTE:
Using buttons browse each page o the Report.
If you need to make some corrections to the layout or tabular content you can edit them
directly in this preview window. To do this, you should press icon (top bar) and doubleclick on the appropriate item to be edited. The general Robot window will be open, which al-lows the user to make changes or corrections. After that press button Return to Previewtocontinue the preview of the calculation report.
NOTE:
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5PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Autodesk Robot Structural Analysis - Getting Started Guide
Click Page setup. Te PageandMargins tab allows the user to set various pa-
rameters.
Click Header/footer tab. In this tab you can define the look o the title page,header and ooter.
Figure 21 - Page setup settings.
Click OKto close the dialog box.
Close the preview o report printout window.
I desired, In Printout Composition Wizarddialog box click on Printbutton
to print all reports.
o save the calculation note, click on icon to export the report to .html
ormat, to export to .rt (MS Word) ormat or to save in .sxw (Open
Office) ormat.
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RC AND STEEL MIXED STRUCTURE
Synopsis:
Te purpose o this example is to show the ease o definition, analysis and
presentation o results or a 3D rame and shell structure (mixed RC and steel) in
Robot.For this example, it is assumed that Autodesk Robot Structural Analysis 2010 is installed
on the PC.
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6CONFIGURATION OF THE PROGRAM
Autodesk Robot Structural Analysis - Getting Started Guide
CONFIGURATION OF THE PROGRAM
Following installation o Robot, the user may configure the working parameters
or Preerences. o do this:
Start the ROBO program (click the appropriate icon or select the command
rom the taskbar).
On the opening window, displayed on the screen click the first icon in
the first row (Frame 2D Design). Other options are or 3d rames and models
with suraces such as walls and floors, access to stand alone design modules etc
Select ools > Preferencesrom the text menu or click on the , thena
icons on the toolbars to open the Preferencesdialog box. Preferences allow the
user to set up working and printout languages, onts, colors etc.
Figure 1 - Regional settings in Preferences dialog box.
Select the first preerences option - Languages(tree on the lef part o the win-
dow), then as the Regional settingschoose United States
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64 MODEL DEFINITION | Definition of structural axes
Autodesk Robot Structural Analysis - Getting Started Guide
Regional settings set the default databases (profiles, materials), units and codes to the stan-dards of a country. In the example above, we have chosen American section database (AISC)
and metric data units: [m],[cm], [kN].
NOTE:
Click Accept to close the window
You can check active units in right, bottom corner of the screen. In this example should be
the display: [m] [kN] [Deg].
NOTE:
MODEL DEFINITION
Definition of structural axes
In this step, we define a rectangular axis grid in the Cartesian coordinate system.
The axes of the structure create an additional grid which can be used todefine different elements of the structure and select structure compo-nents.
The grid intersections form points that facilitate the users work by guidingcursor movements during graphical structure definition.
INFO
Press icon (right side o the Robot screen) or select Geometry > Axis Defi-
nition rom the menu to open the Structural Axisdialog box.
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6MODEL DEFINITION | Definition of structural axes
Autodesk Robot Structural Analysis - Getting Started Guide
On the Xtab in the Positionfield type -1 and press Insertbutton, in the same
way enter ollowing axis coordinates as shown below (Figure 2):
Set Numberingas A B C
On the Ztab in the Positionfield type 0and press Insertbutton, in the same way
enter ollowing axis coordinates as shown below (Figure 3):
Set Numberingas 1 2 3
Figure 2 - Definition of structural axis in X direction.
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66 MODEL DEFINITION | Definition of structural axes
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 3 - Definition of structural axis in Z direction.
Applyand Closethe Structural Axisdialog box.
Defined axes should appear as shown below:
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6MODEL DEFINITION | Section definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 4 - View of defined structural axis.
Section definition
In this step, we learn how to add new sections to the list o available sections.
Press icon (right side o the screen) or select Geometry > Properties > Sec-
tionsrom the menu to open the Sections dialog box.
Check presence o the ollowing sections:
CR30x30, BR30x60, W8x28, W10x45.
I the above sections are not present in the list o available sections press the New
section definition icon to open New Sectiondialog box.
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68 MODEL DEFINITION | Section definition
Autodesk Robot Structural Analysis - Getting Started Guide
In the Sectiontype pull-down menu choose RC Column.
Figure 5 - New RC column definition.
Set 30in the band hfield, in the Labelfield column name: CR30x30will be au-
tomatically created and click Add(see above).
In the Sectiontypepull-down menu choose RC Beam.
Set30in the band 60in the hfield, in the Labelfield column name: BR30x60
will be automatically created, then press Add.
In the Section typefield selectSteel.
Set AISC in the Database field, W in the Family field and W 8X28 in theSection field.
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6MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 6 - New steel section definition.
Press Addto add defined section to the list o the active sections.
As beore, set AISCin the Databasefield, Win the Familyfield and W 10x45inthe Sectionfield.
Press Add, close New Sectionand Sectionsdialog boxes.
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70 MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Bars definition
In this step, we define a 2D rame using the previously defined sections.
Go to the Robot layouts selection box (right top corner o screen) and switch
layout to the Bars:
Figure 7 - Bars layout selection.
Go to the Barsdialog box and set: RC Column(Bar ype field), CR30x30 (Sec-
tion field).
Place the cursor in the Node Coordinates > Beginningfield, switch to the graph-
ic viewer and select graphically the beginning and end o the columns by means
o the coordinates o the intersection point o the defined axes: B1-B2, C1-C2,
D1-D2(see below):
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7MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 8 - View of defined columns.
Set the ollowing options: RC Beam(Bar ype field), BR30x60(Section field).
Go to the Node Coordinates > Beginningand, as beore, indicate the beginning
and end o the beams: A2-B2, B2-C2, C2-D2, D2-E2(see below):
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72 MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 9 - View of added beams.
Set the ollowing options: Column(Bar ype field), W8x28(Section field).
Go to the Node Coordinates > Beginningand, as beore, indicate the beginning
and end o the columns: A2-A3, C2-C5, E2-E3(see below):
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7MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 10 - View of added columns on the 2 nd storey.
Set the ollowing options: Beam(Bar ype field), W10x45(Section field).
Go to the Node Coordinates > Beginningand, as beore, indicate the beginning
and end o the beams: A3-C5, E3-C4(see below):
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74 MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 11 - Finished 2D frame view.
Press , icons at the bottom o the screen to display supports symbols and
sections shapes.
Press icon at the bottom o the screen to open the Displaydialog box.
Select the Barsoption (lef panel) and tick Symbolsoff (right panel) to turn off
display o cross sections.
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7MODEL DEFINITION | Bars definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 12 - Switch off bars symbols displaying.
Click Applyand OKto close the box. Frame 2D should look as shown below:
Figure 13 - 2D frame view with additional attributes - section shapes.
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76 MODEL DEFINITION | Supports definition
Autodesk Robot Structural Analysis - Getting Started Guide
Supports definition
In this step, we create supports or the rame structure.
Go to the Robot layouts selection box (right top screen corner) and switch layout
to Supports.
Go to the Supportsdialog box and select Fixedin the list o supports.
Move the cursor to the graphical view. Note that a support symbol is shown that
will allow the user to add supports to discrete nodes. o add to all nodes, press
right mouse button and select and drag window round the nodes that have
supports.
Click inside current selection box and apply.
Notice that the supports are also now shown in the tab.
Figure 14 - Nodes selection to supports definition.
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7MODEL DEFINITION | Load cases definition
Autodesk Robot Structural Analysis - Getting Started Guide
You may also type the relevant supports numbers (1 3 5) into the Current Selectionfield and
apply.
NOTE:
Defined rame with supports should look as shown below:
Figure 15 - Frame with defined supports view.
Load cases definition
In this step, we define names and natures o all load cases.
Go to the Robot layouts selection box (right top screen corner) and switch layout
to the Loads.
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78 MODEL DEFINITION | Load cases definition
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 16 - Loads layout.
In the Load ypesdialog box click Newto define a dead load (sel-weight) with
a standard name DL1.
The self-weight load is automatically applied see the table (in the Z direction).
NOTE:
Click Newonce again to define a dead load with a standard name DL2.
Choose in the Naturefieldlive, then Newto define a live load with a standard
name LL1.
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80 MODEL DEFINITION | Definition of loads for predefined load cases
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 18 - DL2 load type selection.
Press icon (right side o the screen) to open the Load Definitiondialog box.
On the Bartab press icon to open Uniformload dialog box, then type value
o load 10 [kN/m]in the pZfield, click Addand close the box:
Figure 19 - Uniform load definition for DL2 case.
Select beams (no. 4 5 6 7) indicate them or just type 4to7in field Applyto and
click Apply(as beore its possible to window them too)
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8MODEL DEFINITION | Definition of loads for predefined load cases
Autodesk Robot Structural Analysis - Getting Started Guide
Press icon at the bottom o the screen to turn display Load value
descriptions on.
Figure 20 - DL2 load case view.
o define loads or LL1case select the 3rd load case in the list o defined load
cases field.
On the Bartab press icon to open Bar Force dialog box, then type value o
load 20 [kN]in the FZfield.
On the Coordinate field leave x=0,50value (defined orce will be applied halway
along the member), click Addand Closethe box.
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82 MODEL DEFINITION | Definition of loads for predefined load cases
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Figure 21 - Bar force definition for LL1 case.
Select beams (no.5) indicate them or just type 5 in field Apply to and click
Apply.
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8MODEL DEFINITION | Definition of loads for predefined load cases
Autodesk Robot Structural Analysis - Getting Started Guide
Figure 22 - LL1 load case view.
In the same way you may define or 4th:LL2load