Full-Scale Testing and Analysis for Blast-Resistant Design
Publication: Journal of Aerospace Engineering
Volume 21, Issue 4
Abstract
A full-scale blast test was conducted on a structure representing a mailroom, constructed with unreinforced masonry walls. The four walls were retrofitted with different quantities of glass fiber-reinforced polymers (GFRP) on the outside face to increase their resistance to the blast load. In addition, shotcrete was added to the inside face of the two long walls. The objective of this test was to validate a method of analysis that can be used to design effective retrofit techniques to contain blast loads. A blast load was produced by the detonation of a equivalent TNT charge placed near the center of the room. Instrumentation on individual walls monitored the blast pressure and the consequent displacement and velocity of the walls. Although the walls sustained extensive internal damage and plastic deformation, the retrofit was able to withstand the blast load. It was observed through the postmortem analysis of the test that the stiffness of the walls is completely lost at an early stage and only membrane action of the GFRP provides structural resistance.
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Acknowledgments
The writers thank the Defense Threat Reduction Agency (Audrey Kersul) for conducting the blast test on behalf of the authors, and Dr. Maynard Plamondon for his technical advice. A grant from the National Science FoundationNSF (Dr. P. Balaguru, program manager) partially helped conduct the analysis.
References
Albert, M. L., Elwi, A. E., and Cheng, J. J. (2001). “Strengthening of unreinforced masonry walls using FRPs.” J. Compos. Constr., 5(2), 76–84.
ASCE. (1985). Design of structures to resist nuclear weapons effects, New York.
ASCE. (1997). Design of blast resistant buildings in petrochemical facilities, New York.
Baker, W. E. (1973). Explosions in air, University of Texas Press, Austin, Tex.
Beshara, F. B. A., and Virdi, K. S. (1992). “Prediction of dynamic response of blast-loaded reinforced concrete structures.” Comput. Struct., 44(1/2), 297–313.
Chopra, A. K. (2001). Dynamics of structures, Prentice-Hall, Upper Saddle River, N.J.
Davidson, J. S., Porter, J. R., Dinan, R. J., Hammons, M. I., and Connell, J. D. (2004). “Explosive testing of polymer retrofit masonry walls.” J. Perform. Constr. Facil., 18(2), 100–106.
Defense Special Weapons Agency (DSWA). (1997). “Design and analysis of hardened structures to conventional weapons effects.” DAHSCWEMAN-97, technical manual, DOD, Washington, D.C.
Department of the Air Force. (2000). “Air blast protection retrofit for unreinforced concrete masonry walls.” Engineering technical letter (ETL) 00-9, Washington, D.C.
Ehsani, M. R., Saadatmanesh, H., and Velazquez-Dimas, J. I. 1999. “Behavior of retrofitted URM walls under simulated earthquake loading.” J. Compos. Constr., 3(3), 134–142.
Hamoush, S. A., McGinley, M. W., Mlakar, P., Scott, D., and Murray, K. (2001). “Out-of-plane strengthening of masonry walls with reinforced composites.” J. Compos. Constr., 5(3), 139–145.
Mays, G. C., Hetherington, J. G., and Rose, T. A. (1999). “Response to blast loading of concrete wall panels with openings.” J. Struct. Eng., 125(12), 1448–1450.
Sheffield, C. S., and Thomson, J. M. (2000). Divine Buffalo 12: Test technical requirements, Defense Threat Reduction Agency, Albuquerque, N.M.
Smith, P. D., and Hetherington, J. G. (1994). Blast and ballastic loading of structures, Butterworth-Heinemann Ltd., Oxford, U.K.
Timoshenko, S., and Woinowsky-Krieger, S. (1959). Theory of plates and shells, 2nd Ed., McGraw-Hill, New York.
Triantafillou, T. (1998). “Strengthening of masonry structures using epoxy-bonded FRP laminates.” J. Compos. Constr., 2(2), 96–104.
Velazquez-Dimas, J. I., and Ehsani, M. R. (2000). “Modeling out-of-plane behavior of URM walls retrofitted with fiber composites.” J. Compos. Constr., 4(4), 172–180.
Ward, S. P. (2004). “Retrofitting exiting masonry buildings to resist explosions.” J. Perform. Constr. Facil., 18(2), 95–99.
Woodsen, S. C., and Baylot, J. T. (1999). “Structural collapse: quarter-scale model experiments.” Technical Rep. No. SL-99-8, U.S. Army Corps of Engineers, Engineer Research and Development Center, Vicksburg, Miss.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 21 • Issue 4 • October 2008
Pages: 217 - 225
Copyright
© 2008 ASCE.
History
Received: Nov 28, 2006
Accepted: Aug 13, 2007
Published online: Oct 1, 2008
Published in print: Oct 2008
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