AIT PBD

1. Performance Based Design
WHAT DOES IT TAKE TO MAKE IT HAPPEN ?
Naveed Anwar, PhD

2. The Question !
We know what PBD is
We know PBD is good, and better than conventional design
We know it should be done
We can learn, or we know how to do it
What will it take to make it happen on real projects ?

3. 1 – Understand the Stakeholders
Public
Developer
Architects
Officials
Structural Engineers
Safety, Economy,
Business, Profit, Image,
Aesthetics, Usability, Business, Image,
Public Safety, Conformance,
Structural Safety, Recognition, Business,

4. 2 – Build Awareness
Public
Building
Occupants
Building
Owners
Project
Developers
Architects
Structural
Engineers
Officials

5. 3 – Understand the Process
Client Architect
Structural Engineer
Conventional Design

6. 3 – Understand the Process
Client Architect
Structural Engineer
PBD Specialist
PBD Reviewer
Site Specific Consultant
Performance Based Design

7. 4 – Understand Roles
Activity Officials,
Codes
Client Architect Engineer PBD Cons Site
Specific
PBD
Reviewer
System Development u uuu uu u
Code-based Design uu uuu u u
Hazard Definitions u u uu uuu u
Performance Criteria uu u uuu u
PBD and PBA u uuu
Review PBD/PBA u u uu uuu
Incorporate PBD uu uu uuu

8. The general belief
Increased Performance → Increased Cost
Increased performance can be
achieved for same cost
Reduced cost for same performance
Improved/efficient designs
Need not be true
Easy Needs Knowledge, innovation,
better tools, better technology,
critical thinking, out-of-the-box
solutions
Cost and Performance

9. The Cost Issues

10. Designing Economical Structures
Economical design requires conscious effort
Both CBD and PBD can lead to economical design
PBD provides a greater opportunity to refine and economize with confidence

11. Designing Economical Structures
The 4 Rs of economical and high performance concrete buildings
1. Right type of structural system
2. Right member types and sizes at the right places
3. Right amount of reinforcement in right members
4. Right detailing of right reinforcement

12. Convincing Clients and Architects
Improve presentation and communication skills
◦ Animations, graphics, videos,
Show them how PBD benefits them
◦ Cost, safety, image, salability, advancement, high end…
Scare them a bit, if they don’t do it !
◦ Disaster maps, pictures, exaggerated animations,
Create Unified and Consistent Messaging ! << ASEP>>