S U R A N A R E E

UNIVERSITY OF TECHNOLOGY

INSTITUTE OF ENGINEERING

SCHOOL OF CIVIL ENGINEERING

Integrated 3D

Linear & Nonlinear

Finite Element

Analysis & Design

13-14 July 2013

@ Royal River Hotel

Day 1

Training Timeline

8:30 10:15 Introduction & Overview

10:30 12:00 Getting Started

13:00 14:45 Modeling 1 Ex : RC Housing

15:00 17:00 Modeling 2 Ex : Steel Building

Day 28:30 10:15 Loadings

10:30 12:00 Analysis 1

13:00 14:45 Analysis 2

15:00 17:00 Design

Introduction

Integrated 3D Linear & Nonlinear Finite Element Analysis & DesignLatest Version 15.2.1

Integrated 3D-Object Based Modeling,Analysis & Design of BuildingsLatest Version 2013

Computer and Structures Inc (CSI)

Latest Versions

Integrated Design of Flat Slabs,Foundation Mats & Spread FootingsLatest Version 12.3.2

Nonlinear Analysis and PerformanceAssessment for 3D StructuresLatest Version 4.0.4

Getting Started

- - -

SAP2000

Set 3D View

View > Set 3D View

XY

Z

Plan angle = 225o

Elevation angle = 35o

Aperture angle = 60o

Default 3D View

Planangle

225o

X

Y

Viewdirection

Eye point

Target point

Plan Angle

Elevationangle

35o

X

Z Viewdirection

Eye point

Target point

Elevation Angle Aperture Angle

ApertureangleEye

point

XYZ

Zoom Pan Rotate 3D

Shift

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Modeling

Example : RC Housing

4 m

4 m

2.5

m3.

5 m

PS

PS

PSPS

PS

1st Floor PlanELEV. +0.30

4 m

2nd Floor PlanELEV. +3.30

PS

S1

2 m

S1 ST

4 m

PS

PSPS

4 m

Beam Local Axis

B30X50 Depth (t3) = 50 cm

Width (t2) = 30 cm

Column Local Axis

C30X30 Depth (t3) = 30 cm

Width (t2) = 30 cm

Z

X Yi

j

1

2 3

Local 1 Axis is Parallel to +Z AxisLocal 2 Axis is Parallel to +X Axis

Z

X Y

i

j

1

2

3

Local 1 Axis is Parallel to +Y AxisLocal 2 Axis is Parallel to +Z Axis

Column Beam

Z

XY

1

23

2

3

t2

t3

Right HandRule

123

Right HandRule

Z

XY

12

3

Select Object

Reshape Object

Draw Frames

Quick Draw Frames

Quick Draw Braces

Create Secondary Beams

Draw Areas

Draw Rectangular Areas

Create Areas

Snap to Grid Intersection

Snap to Line Ends and Midpoint

Snap to Intersection

Snap to Perpendicular Projection

Snap to Line and Edge

Snap to Fine Grid

Draw Joints

Extrude Points to Lines

Extrude Lines to Areas

Extrude Areas to Solids

Draw Developed Elevation

Draw Reference Point

Replicate

Move Points/Lines/Areas

Mesh Areas

Split Frames

Join Frames

Area Section Thicknesses

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Area Section Behavior

Membranein-plane membrane stiffness

Membrane

U1Node 1

R3U2

U1Node 3

R3U2

U1

Node 4

R3

U2

U1

Node 2

U2

3 2

1

Plateout-of-plane plate bending stiffness

R1

Node 1

U3R2

1

23

R1

Node 2

U3R2

R1

Node 3

U3R2

R1

Node 4

U3R2

Plate

Shellin-plane membrane stiffness

out-of-plane plate bending stiffness

Membrane Behavior

Area Load Transfer for Membrane only

One Way Slab:

Two Way Slab:

Plank (One -way Precast Slab)

Drawing Stair

- Adding Reference Plane

- Draw Half Landing Beam & Slab

- Draw Stair from Half Landing Slab

4 m

3 m

1.5 m

Reference Plane

2 m

Example : Steel Frame

THAI Steel Sections

TH_WF.PRO

Wide Flange Sections

TH_CHNL.PRO

Channel Sections

TH_PIPE.PRO

Round Pipe Sections

TH_SQRT.PRO

Square Tube Sections

TH_RECT.PRO

Rectangular Tube Sections

Steel Section

Properties

Simple connection

Moment connectionX

Y

Simple & Moment Connections

Frame Release :

Simple Connection

2

3Torsion

2

3

Draw Roof Truss

Draw Roof Rafter

Support &Loading

EX4 : Simple RC Frame

Support Modeling

Distributed Loading

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Fixed v.s. Pinned Supports

Fixed Support

Steel columnon base plate Pinned Support

Stiff mat footing

Spring Support

Spring Support

Subgrademodulusk =

k = ? !"#$%& "

1. Winkler models

2. Half space models

3. Finite Element models

Spring Support

&(

"$() fixed ) ?

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Analysis

EX5 : Continuous Beam

5 m 4 m 2 m

1.0 t/m

2 ton

Frame Element Internal Forces

Display > Show Forces/Stresses > Frames

P = 1

V2, V3 = 2 3

T = 1

M2, M3 = 2 3

12

3

EX6 : Simple RC 2

Membrane v.s . Shell Deformation

Moment in Columns from EQKY & WINDY

EQKY

Z

XY

1

23

M22

M 3-3 in Beams

M 2-2 in Columns

Windward & Leeward Walls

Local Axes Area Objects

Set Building View Options > Area Local Axes

Z

XY

12

3

Area Local Axes : 1 2 3

Z

XY

12

3

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Shell Element Stresses

Negative 3 Face(back of element)

Negative 2 Face

Neg

ativ

e 1

Fac

e

1

2

3P

ositi

ve 1

Fac

e

Positive 2 Face

Positive 3 Face(front of element)

Faces of Shell Elements

Shell Element Forces

Shell Element Moments

Wind on Flat Roof

WindwardCp = 0.8

LeewardCp = -0.5

Top Floor Cp = -1.0

Z

Y

Wind on Inclined Roof

WindwardCp = 0.8

LeewardCp = -0.5Z

Y

Roof WindwardCp = 0.5

Roof LeewardCp = -1.0

30-45o

Wind on Inclined Roof

4.0 m 4.0 m

q = tan-1(3/4) = 36.87o

3.0

m

Z

Y

3

Cp = 1.0

CpY = 0.6

CpZ = 0.83

Cp = 1.0

CpY = -0.6

CpZ = 0.8

Wind on Inclined Roof

Design

EX7 : 2D Truss

10 @ 1 m = 10 m

1 m

2 m

RC DESIGN Longitudinal Steel

RC Design Result Shear Reinforcing

Av/s = 0.018

DB10 : A v = 2(0.785)

s = 1.57/0.018

d/2 = 36/2 = 18 cm

= 1.57 cm2

= 87.2 cm

USE DB10 @ 0.18 m

RC Slab Design

RC Slab Design

ApplicationExamples

Topics

! "#$

##% !

#

SAP2000 Application Example:

3D Steel Frame 1

SAP2000 Application Example:

Curved Truss 2

SAP2000 Application Example:

3

SAP2000 Application Example:

4

SAP2000 Application Example:

5

SAP2000 Application Example:

6

SAP2000 Application Example:

7