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Report Offers A Comparison of Structural Performance of Multi-Story Buildings Under Extreme Events

February 04, 2005 From American Institute of Steel Construction, Inc.

A report by Nestor Iwankiw of Hughes Associates and Larry Griffis of Walter P. Moore & Associates provides a unified structural engineering review and objective assessment of the structural performance of major multi-story building collapses in the U.S. due to the extreme exposures of blast, impact, and fire.

The report, Comparison of Structural Performance of Multi-Story Buildings Under Extreme Events, focuses on:

    • The 1993 bombing of the World Trade Center (WTC) towers in New York City;
    • The 1995 bombing of the Murrah Federal Building in Oklahoma City;
    • The September 11, 2001 attacks on the World Trade Center towers and collateral damage of surrounding buildings in New York City; and
    • The September 11, 2001 attack on the Pentagon in Washington, D.C.

In addition, a historical survey on the performance of multi-story buildings under normal fires is presented for comparison to these extreme events.

"This document is important because it clarifies issues in an honest way and demonstrates that all materials are equally safe when designed properly and in accordance with today's building codes," according to Charles J. Carter, chief structural engineer with the American Institute of Steel Construction.

Copies of the 60-page document can be downloaded at no charge by visiting www.aisc.org/epubs and clicking on "Other Resources."

For more information contact:

Scott Melnick
VP of Communications
(312) 670-8314
[email protected]


American Institute of Steel Construction
The American Institute of Steel Construction, headquartered in Chicago, is a not-for-profit technical institute and trade association established in 1921 to serve the structural steel design community and construction industry. AISC’s mission is to make structural steel the material of choice by being the leader in structural steel-related technical and market-building activities, including: specification and code development, research, education, technical assistance, quality certification, standardization, and market development. AISC has a long tradition of service to the steel construction industry of providing timely and reliable information. 

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