Faculty Advisor

Barnett, Jonathan R.


On September 11, 2001, fires began to spread throughout WTC Tower 5. These fires caused numerous steel shear-tab connections to fail causing collapse in part of the tower. This paper discusses the prediction of steel shear tab connection failure (web tear-out mode in this case) as a result of unwanted fire exposures. Both protected and unprotected connections are analyzed using the finite element analysis program, ALGOR. As a result of this research, recommendations for future fire exposed steel connection research and design methodologies will be presented.


Worcester Polytechnic Institute

Date Accepted

January 2003


Mechanical Engineering

Project Type

Major Qualifying Project


Restricted-WPI community only

Advisor Department

Fire Protection Engineering

Advisor Program

Fire Protection Engineering