introduction to bim modeling and applications · introduction to bim modeling and applications...

INTRODUCTION TO BIM MODELING AND APPLICATIONS

SOHAIL RIZVI, LEAD BIM, SRDA

WORKSHOP AGENDA

• Introduction to BIM and overview of BIM implementations

• Expectations of BIM process and outcomes• BIM process workflow: What to do and what to avoid• Overview of Building Information Management• Understanding BIM use and stages

Conventional practices of AEC Industry

• Construction industry has been doing things the same way for thousand of years, Concrete is poured and set, bricks are stacked on the top of bricks, and systems for heating/cooling and water are designed in the corners and over multiple floors. But for way too long, it has been done under isolation. There’s no proper collaboration amongst project team members and hence results in colossal loss of money and time due to improper coordination.

• Even in some of the most collaborative schemes, communication between different teams still has a long way to go, and the other users of building data and outputs, like clients and facility managers, are sometimes the last to know. The quality and quantity of data they receive on a project can vary wildly. What we need is a way to involve the entire project team earlier and coordinate all the project information in clear and accessible forms.

Say. Hello to BIM

It’s Building Information Modelling, But Please mind that the word ‘Building’ here is not a noun but a verb. Otherwise, Some folks here will render a tall skyscraper in their imagination.

BUILT ASSETs. Any Built Asset.

LIKE

Definition of BIM‘BIM is a process for combining information and technology to create a digitalrepresentation of a project that integrates data from many sources and evolves in parallel with the real project across its entire timeline, including design, construction, and in-use operational information.’

BIM in laymen’s termOne of the simplest ways you can explain BIM is that the project should be builttwice: once fully modelled digitally and then again for real on the construction site.

Conventional CAD systems vs BIM

CAD BIM

Multiple Drawings containing views void of any logical connection between them

Single File fully coordinated Model containing all views of the project

Composed of Graphical elements such as Lines, Polylines, Circles,etc

Composed of objects corresponding to real world objects such as Walls, Column, Beam, Roofs, Stairs,etc.

Dumb Graphics Information Rich Models

Benefits of BIM implementation through the following phases of

Building Life Cycle

Design Analyse Planning Construction Operational

It all starts with a Concept• Majority of BIM platforms allow us to start the design project with

Conceptual Masses and then gradually evolving it into Detailed Design Stage and further. Thus maintaining the links.


Conceptual Mass StudiesDesign Analyse Planning Construction Operational

Predict Accurate Cost Estimates during Concept Design

Coordinated Drawing setsConventionally, under CAD systems, each view (Plans, Section, Elevation, 3D) of the structure was drafted separately without any logical connection between them, which results in plethora of uncoordinated documents set with lots of errors and anomalies.

BIM magically breaks this convention with the single model concept, wherein, change in one view affects all the other views of the project, hence, resulting in, coordinated drawings across the platform (Architecture, MEP & Structural)


Complex Design Challenges aren’t complex anymoreArchitects and Designers can now leverage BIM to meet complex design challenges. With fabulous tools available in BIM platforms for designing intricate facades and structures.


These tools include visual computational programming tools such as newly introduced Autodesk Dynamo to automate design tasks and meet complex design challenges.

Coordination across disciplinesOne of the biggest problem AEC industry have been facing since ages is coordination between different disciplines (Architectural, MEP & Structural), resulting in critical errors on site.

Implementation of single model concept on BIM platform successfully integrates Architectural, MEP & Structural counterparts, Therefore, elimination of design / coordination errors during planning/design phase itself.


Roam in your Facility prior to it’s constructionDesign Analyse Planning Construction Operational

QuantificationScreenshots from our Project:

Instant extraction of Roofing Area along with the schedule of roofing in proper tabular format. As it been seen that the area of the selected roof(Blue) is 836 Square meters.


QuantificationScreenshots from our Tembuland Project:

Instant extraction of Slab Volumes on First Floor along with the schedule of Slab Volumes in proper tabular format. The volume of the selected slab (in blue) is 215.43 Cubic meters.


QuantificationUsing BIM for Quantification has the following benefits:• Provide fast, effective and efficient quantity take-off and cost estimation.• Produce reliable and accurate quantities as well as competitive cost estimates.• Auto computation of calculations reduces human errors.• Generate cost estimation reports categorized according to areas, blocks, concrete

grades, subcontractor and other relevant reports and this increases the speed of deliverables.

• Improve visualisation of the elements/items for measurement and minimise omissions.

• Hand over project to another party more quickly and reduce double handling.• Enhance communication and collaboration amongst team members.• Improve cost database management which reduces loss of information


Benefit 04: Quantification

Quantity Schedules from BIM platforms can be easily exported to yourFavourite Spreadsheet Application such as Excel.


Elimination of ClashesResearch shows that the average cost of resolution of a clash discovered on site during construction is 3300 USD.

BIM implementation provides a magical workflow of detection & elimination of clashes during design/planning stage itself, resulting in a increased cost and time savings with increased productivity on site.


Export Digital Models for Visualization PurposesThese technical BIM models can be used for marketing and presentation purposes by exporting them from your BIM platform to your favourite rendering applications.


Check Structural feasibility of your designsDesign Analyse Planning Construction Operational

•Save time and cost on creating extra models•Easier transition BIM authoring tools allowing new firmsimplementing this use model•Improve specialized expertise and services offered by thedesign firm•Achieve optimum efficient design solutions by applyingvarious rigorous analyses•Faster return on investment with applying audit and analysistools for engineering analyses•Improve the quality of the design analyses•Reduce the cycle time of the design analyses

Check Structural feasibility of your designsBIM Platforms allow us to export models directly into Structural Analysis applications to check their Structural feasibility.


Perform CFD Simulations in a JiffyDesign Analyse Planning Construction Operational

• For those who are unaware, Computational Fluid Dynamics (CFD) is a sophisticated simulation technique that mathematically simulates fluid flow and heat transfer.

• For high-performance HVAC systems such as radiant heating and cooling, underfloor air distribution (UFAD), and natural ventilation and hybrid systems that use both natural and mechanical conditioning of a building, it is critical to understand how the air flows and the surrounding environment impacts the occupants' comfort while still being able to balance energy savings. Computational Fluid Dynamics (CFD) models are key to understanding this balance.

Perform CFD Simulations in a JiffyDesign Analyse Planning Construction Operational

For this example, We’ll be using Stadium Model to do Wind Simulation

Crowd Simulations Design Analyse Planning Construction Operational

• How do people navigate through a building, a train station, airports? What happens when you need to evacuate an area, and if a number of exits have to be shut for various reasons, will the occupants still make it out safely? Simulating the behaviour of individuals is becoming an increasingly important part of any project and it should fit in to the BIM process.

Crowd Simulations Design Analyse Planning Construction Operational

PlanningGiven below is the Gannt Chart . It’s the good way of project planning but with BIM we experienced something more better.


PlanningHere’s is what we call the 4D simulation, which is the integration of the schedule, from the previous slide, and the BIM Model


Prefabrication & BIM: The new revolution• For many years now prefabrication has been seen as integral to greater efficiency in

building construction. Earlier manual 2D CAD systems relied on a product of specified fixed characteristics, mass produced to reduce unit cost; however, this approach never satisfied design flexibility or innovation of product and led, in its worse outcomes of the post-war housing boom, to using concrete panels of small range and adaptability. An ugly truth.

• Meanwhile, in advanced manufacturing sectors such as automotive and aerospace, techniques for mass production and robotic procedures have had a revolutionary impact, and now, with the advent of BIM, that revolution is extending into building and construction.


Plan your Site Layout with BIMDesign Analyse Planning Construction Operational

We can make use of BIM for planning Site Layout including the positioning of cranes, Clearance Zones and Site Office to prevent problems during actual Construction.

BIM on FieldDesign Analyse Planning Construction Operational

BIM for Operation & Facility Management


The updated "as built" BIM model is a valuable resource for real estate owners and facility managers, providing an efficient tool to control operation and maintenance tasks and all the relevant information about building service components, like model names, serial numbers, warranties, tech sheets, operation and maintenance manuals and schedules, servicing logs, etc.

BIM with Augmented Reality during Maintenance


• Augmented reality offers the promise to improve BIM by superimposing virtual models on a live view of the world.

• Using a smartphone or tablet, the user can view the 3D model in the real environment in real time from multiple perspectives.

• And here’s how we can leverage AR with BIM:

How to make successful transition to BIM

Steps to successful BIM transition:

1. Get to know BIM2. Get The Whole Team on Board3. Assume Software and Hardware Updates4. Develop a Plan5. Begin with a Pilot Project6. Document Preferred Processes7. Cultivate BIM Champions8. Gradually Transition Your Teams9. Integrate to Collaborate10. Innovate and Expand

Final words:BIM will continue to impact all areas of construction design, build, finance, management, and operation, and the relationships between all the parties involved in a project, both cooperatively and contractually. We think everyone can work together in more collaborative ways, toward a creative tomorrow that makes the most of diverse groups of people. Digital cooperation and access to information isn’t just the heart of BIM; it’s the heart of a connected, global society.

So are you ready? We want to make sure that you don’t miss the BIM boat!

QA SessionI would be happy to solve your BIM Related Queries. Please ask.

introduction to bim modeling and applications · introduction to bim modeling and applications...

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