Avoiding Disproportionate Collapse

Single Abstract

343327 - DYNAMIC RESPONSE OF ROOF TRUSS SYSTEMS UNDER BLAST LOADING

Friday, April 20
11:00 AM - 12:30 PM
Location: 202CD

Building envelope is the most critical line of defense to protect structural components and occupants against external explosion threats. Much research has been done, and design methods have been developed and verified, for exterior building wall systems under blast loads. Limited research exists for roof truss systems under blast loading, and the resistance of roof trusses to failure are not well-defined. In addition, the blast load on a roof system varies with space and time, which makes it more complex compared to that experienced by building walls. Current design methods calculate the response based on equivalent blast roof loading. In this paper, the dynamic response of roof system under blast loading will be predicted numerically using the actual blast load on the roof and compared to the dynamic response calculated based on the equivalent blast roof loading. The dynamic predictions will be verified using full-scale field experiments using live explosions. In addition, the static resistance function of open-web steel joist roof trusses will be developed using full-scale experiments and numerical simulations. The verified numerical models will be used to analyze the dynamic structural response of open-web steel joist roof truss system under blast loading.

Doaa Bondok

Graduate Teaching and Research Assistant
University of Missouri-Columbia

Doaa Bondok is experienced Graduate Research Fellow. Doaa is originally from Egypt and she joined the University of Missouri-Columbia in 2011 to pursue her graduate studies. She received her Masters degree in 2012 and her PhD degree in 2017. Her research has focused on the analysis and design of structures against blast loading. Her expertise includes nonlinear behavior and dynamic response of Cold-Formed Steel Stud walls, Open Web Steel Joists, and Cold-Formed Steel roof trusses. She is talented in incorporating advanced finite element analyses in her research pursuits.

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Hani Salim

Professor
University of Missouri

Hani A. Salim is associate dean of academic programs in the College of Engineering and a C.W. LaPierre Professor in the Civil and Environmental Engineering Department at the University of Missouri. Salim is a member of the ASCE Technical Committee on Blast, Shock and Impact as well as the ASCE Blast Protection of Building Standards Committee. He is director of the MU’s National Center for Explosion Resistant Design, which conducts research on designs and strategies to protect against explosions. He has received funding from the U.S. Army Corps of Engineers, Applied Research Associates, the Missouri Department of Transportation, the Air Force Research Laboratory and the U.S. Army Research Laboratory. He is a registered professional engineer.

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