Assessment of Insulated Concrete Walls to Close-In Blast Demands
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 6
Abstract
Intentional and accidental impulsive loads from high-explosive detonations and munitions can result in significant damage to both civil and military facilities. One demand scenario of particular concern occurs during close-in detonation of high explosives. Even for resilient construction methods, such as reinforced concrete walls, these demands can produce undesirable effects including localized spall and breach. A popular form of exterior cladding in the United States consists of precast concrete insulated wall panels. These systems include an exterior concrete wythe, foam insulation layer, and an interior concrete wythe. While insulated wall panels are used to provide an energy-efficient building envelope, the insulation layer can provide a means of mitigating spall and breach of the panel. Thus, the performance of insulated wall panels subject to close-in blast demands is investigated. Both numerical simulations and experimental tests are carried out in order to assess the structural response of this wall system to close-in explosions. The results indicate that the use of insulated concrete wall panels provides enhanced resistance to spall and breach. This improvement is due to the sacrificial performance of the exterior wythe of the concrete panel and the increased standoff distance between the protected face and the threat provided by the insulation layer.
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Acknowledgments
This material is based on work supported by the National Science Foundation under Grant No. 1030812. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. The authors are grateful to Steve Brock and Gate Precast Company of Alabama for the donation of the panels, their fabrication, and shipment to the test range. The authors would like to acknowledge the Air Force Civil Engineer Center in Panama City, Florida, for the testing and data collection on the insulated panels presented in this paper. Last, the authors would like to thank the Precast/Prestressed Concrete Institute advisory board members Roger Becker, Ned Cleland, Ken Baur, Steve Brock, Harry Gleich, Jason Krohn, H. S. Lew, and Tommy Mitchell for their oversight on the research program.
References
ASTM. (2010). “Standard specification for steel wire and welded wire reinforcement, plain, and deformed, for concrete.”, West Conshohocken, PA.
ASTM. (2012a). “Standard specification for deformed and plain carbon-steel bars for concrete reinforcement.”, West Conshohocken, PA.
ASTM. (2012b). “Standard test method for compressive strength of cylindrical concrete specimens.”, West Conshohocken, PA.
Bontempi, F., Faravelli, L. (1998). “Lagrangian/Eulerian description of dynamic system.” J. Eng. Mech., 901–911.
Bontempi, F., and Malerba, P. G. (1997). “The role of softening in the numerical analysis of R.C. framed structures.” Struct. Eng. Mech., 5(6), 785–801.
Børvik, T., Dey, S., and Clausen, A. H. (2009). “Perforation resistance of five different high strength steel plates subjected to small-arms projectiles.” Int. J. Impact Eng., 36(7), 948–964.
Chen, W., and Hao, H. (2012). “Numerical study of a new multi-arch double-layered blast-resistance door panel.” Int. J. Impact Eng., 43, 16–28.
Chen, W. F. (1982). Plasticity in reinforced concrete, McGraw-Hill, New York.
Comité Euro-International du Béton (CEB). (1993). CEB-FIP model code 1990, Redwood Books, Trowbridge, Wiltshire, U.K.
Coughlin, A. M., Musselman, E. S., Schokker, A. J., and Linzell, D. G. (2010). “Behavior of portable fiber reinforced concrete vehicle barriers subject to blasts from contact charges.” Int. J. Impact Eng., 37(5), 521–529.
Cowper, G. R., and Symonds, P. S. (1957). “Strain hardening and strain rate effects in the impact loading of cantilever beams.”, Brown Univ., Providence, RI.
Croop, B., and Lobol, H. (2009). “Selecting material models for the simulation of foam in LS-DYNA.” Proc., 7th European LS-DYNA Conf., DYNAmore, Germany.
Davidson, J. S., Fisher, J. W., Hammons, M. I., Porter, J. R., and Dinan, R. J. (2005). “Failure mechanisms of polymer-reinforced concrete masonry walls subjected to blast.” J. Struct. Eng., 1194–1205.
Di Landro, L., Sala, G., and Olivieri, D. (2002). “Deformation mechanisms and energy absorption of polystyrene foams for protective helmets.” Polym. Test., 21(2), 217–228.
Flores-Johnson, E. A., Saleh, M., and Edwards, L. (2011). “Ballistic performance of multi-layered metallic plates impacted by a 7.62-mm APM2 projectile.” Int. J. Impact Eng., 38(12), 1022–1032.
Forrestal, M., Børvik, T., and Warren, T. (2010). “Perforation of 7075-T651 aluminum armor plates with 7.62 mm APM2 bullets.” Exp. Mech., 50(8), 1245–1251.
Grote, D. L., Park, S. W., and Zhou, M. (2001). “Dynamic behavior of concrete at high strain rates and pressures: I Experimental characterization.” Int. J. Impact Eng., 25(9), 869–886.
Li, Q. M., Reid, S. R., Wen, H. M., and Telford, A. R. (2005). “Local impact effects of hard missiles on concrete targets.” Int. J. Impact Eng., 32(1–4), 224–284.
Livermore Software Technology Corp. (LSTC). (2012a). LS-DYNA keyword user’s manual, Livermore, CA.
Livermore Software Technology Corp. (LSTC). (2012b). LS-DYNA theory manual, Livermore, CA.
Luccioni, B. M., and Luege, M. (2006). “Concrete pavement slab under blast loads.” Int. J. Impact Eng., 32(8), 1248–1266.
Malvar, L. J., Crawford, J. E., Wesevich, J. W., and Simons, D. (1997). “A plasticity concrete material model for DYNA3D.” Int. J. Impact Eng., 19(9–10), 847–873.
Manenti, S., Sibilla, S., Gallati, M., Agate, G., and Guandalini, R. (2012). “SPH simulation of sediment flushing induced by a rapid water flow.” J. Hydraul. Eng., 272–284.
Marchand, K., Woodson, S., and Knight, T. (1994). Revisiting concrete spall and breach prediction curves: Strain rate (scale effect) and impulse (pulse length and charge shape) considerations, Dept. of the Army, Corps of Engineers, Vicksburg, MS.
Masso-Moreu, Y., and Mills, N. J. (2003). “Impact compression of polystyrene foam pyramids.” Int. J. Impact Eng., 28(6), 653–676.
McVay, M. (1988). “Spall damage of concrete structures.”, Dept. of the Army, Corps of Engineers, Vicksburg, MS.
Naito, C., Dinan, R., and Bewick, B. (2011). “Use of precast concrete walls for blast protection of steel stud construction.” J. Perform. Constr. Facil., 454–463.
Naito, C., Hoemann, J., Beacraft, M., and Bewick, B. (2012). “Performance and characterization of shear ties for use in insulated precast concrete sandwich wall panels.” J. Struct. Eng., 52–61.
National Cooperative Highway Research Program (NCHRP). (2010). Blast-resistant highway bridges: Design and detailing guidelines, Transportation Research Board, Washington, DC.
Ohkubo, K., Beppu, M., Ohno, T., and Satoh, K. (2008). “Experimental study on the effectiveness of fiber sheet reinforcement on the explosive-resistant performance of concrete plates.” Int. J. Impact Eng., 35(12), 1702–1708.
Ozbolt, J., and Sharma, A. (2011). “Numerical simulation of reinforced concrete beams with different shear reinforcements under dynamic impact loads.” Int. J. Impact Eng., 38(12), 940–950.
PCI Committee on Precast Sandwich Wall Panels. (2011). “State-of-the-art of precast/prestressed sandwich wall panels.”, 2nd Ed., Chicago.
Su, X. Y., Yu, T. X., and Reid, S. R. (1995). “Inertia-sensitive impact energy-absorbing structures. Part ii: Effect of strain rate.” Int. J. Impact Eng., 16(4), 673–689.
Tedesco, J. W., Powell, J. C., Ross, C. A., and Hughes, M. L. (1997). “A strain-rate-dependent concrete material model for ADINA.” Comput. Struct., 64(5–6), 1053–1067.
U.S. Department of Defense (USDoD). (2008). “Unified facilities criteria: Structures to resist the effects of accidental explosions.”, Washington, DC.
Wang, F., Wan, Y. K. M., Chong, O. Y. K., Lim, C. H., and Lim, E. T. M. (2008). “Reinforced concrete slab subjected to close-in explosion.” Proc., 7th German LS-DYNA Forum, DYNAmore, Germany.
Widdle, R. D., Bajaj, A. K., and Davies, P. (2008). “Measurement of the Poisson’s ratio of flexible polyurethane foam and its influence on a uniaxial compression model.” Int. J. Eng. Sci., 46(1), 31–49.
Williams, G. D., and Williamson, E. B. (2011). “Response of reinforced concrete bridge columns subjected to blast loads.” J. Struct. Eng., 903–913.
Xu, K., and Lu, Y. (2006). “Numerical simulation study of spallation in reinforced concrete plates subjected to blast loading.” Comput. Struct., 84(5–6), 431–438.
Yamaguchi, M., Murakami, K., Takeda, K., and Mitsui, Y. (2011). “Blast resistance of double-layered reinforced concrete slabs composed of precast thin plates.” J. Adv, Concr. Technol., 9(2), 177–191.
Zhou, X. Q., Kuznetsov, V. A., Hao, H., and Waschl, J. (2008). “Numerical prediction of concrete slab response to blast loading.” Int. J. Impact Eng., 35(10), 1186–1200.
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© 2014 American Society of Civil Engineers.
History
Received: Jan 27, 2014
Accepted: Jun 17, 2014
Published online: Sep 17, 2014
Discussion open until: Feb 17, 2015
Published in print: Dec 1, 2015
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