spotlight exhibits at the uc berkeley library - the following ......professor and principal...

October 9, 2013

An Important note from the Principal Investigator Abolhassan ASTANEH-ASL on the document that follows:

The following PowerPoint was presented by me (A. Astaneh-Asl) on NSF Day on the Capitol Hill to some members of Committee on Science and at the NSF Day Exhibit in 2002.

Respectfully,

Abolhassan ASTANEH-ASL, Ph.D., P.E.

Professor and Principal Investigator for the NSF Funded UC Berkeley WTC Project (Duration: 10-2001 to 9-2002)

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Abolhassan Astaneh-Asl, Ph.D., P.E.

Professor Department of Civil and Environmental Engineering

University of California, Berkeley

David B. McCallen, Ph.D.

Director Center for Complex Distributed Systems

Lawrence Livermore National Laboratory

Research on Protecting Structures

Against Terrorist Attacks

Including World Trade Center Studies

This document is part of the “World Trade Center Post-Disaster Reconnaissance and Perishable

Structural Engineering Data Collection”, a research project funded by the U.S. National Science

Foundation at the Univ. of California Berkeley with Prof. Abolhassan ASTANEH-ASL as Principal

Investigator (http://www.ce.berkeley.edu/~astaneh) as the Principal Investigator. Duration of the project

was from 10/2001 to 9/2002. Further Information and project archives are at

http://lib.berkeley.edu/ENGI/WTC. © 2001 Abolhassan ASTANEH-ASL.

"This work is licensed under a Creative Commons Attribution-NonCommercial -No Derivatives License."

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http://www.ce.berkeley.edu/~astaneh

http://lib.berkeley.edu/ENGI/WTC

http://creativecommons.org/licenses/by-nc/3.0/





Sponsored by:

National Science Foundation

And

General Services Administration

American Institute of Steel Construction

University of California Berkeley

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After Oklahoma City Tragedy

Developing Systems to Prevent

Complete Collapse By A. Astaneh et al.

Car Bombs

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Main Objective:

To Prevent Catastrophic

Collapse

And

Loss of Lives

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Protecting Federal Buildings

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Protecting Federal Buildings

This photo of the federal building is blocked to prevent

building identification.

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By Placing steel cables in the

floors, collapse is prevented

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Copyright © 2001 Abolhassan ASTANEH-ASL


Analytical Work, Primarily by LLNL

Current UC-Berkeley/LLNL Work Effects of Blast Waves on the Structure

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Effects of Blast Waves

on the Structure

Von Mises Stresses

(combined Shear and Normal Stresses)

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Other Structures, …

This photo may be subject to copyright by

others.


others.


others.

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World Trade Center

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World Trade Center

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What Has Been Done Since Sept. 11

Investigated the

Collapse

Provided Information on

Possible Cause of

Collapse

Investigated the Steel

Structure and Saved

Some Members for

Further Studies

Collected Some Photos

and Videos

Building 7



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Building 7

WTC


http://lib.berkeley.edu/ENGI/WTC Copyright © 2001 Abolhassan ASTANEH-ASL


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Please see PowerPoint “502-WTC-Astaneh…” in this WTC Archives for explanation of the above burned member. The burning and loss of cross section have occurred after the collapse while the member was in the burning debris at Ground Zero. The photo was shot on October 8, 2001 and at the time of shooting this photo the member was still hot and steam was coming out of it as can be seen at the top of the photo.

The archives are at: http://lib.berkeley.edu/ENGI/WTC Respectfully, Abolhassan Astaneh-Asl, Principal Investigator. (This note was added to the original PowerPoint on October 10, 2013 for clarification)


Towers





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Towers





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Future Activities:

• Continue investigation of Collapse

• Build computer models of WTC

• Simulate the collapse and learn

lessons

• Develop technologies to prevent

complete collapse and loss of lives.

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Protection Against Terrorist

Attacks: 1. Inelegance and Prevention

2. Barriers

3. New and Innovative Solutions

Through Research and Development (NSF and

Academia)

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Component Tests at CEE-UC-BerkeleyProof-Testing of Buildings at NeTI-Nevada

"Developing Building Structures to Rresist Terrorist Attacks", A Proposal by A. Astaneh-Asl, UC-Berkeley and D. B. McCallen,LLNL,

Components and Full-scale Building Tests

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Sponsored by NSF

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