Concrete Walls for Blast Protection of Steel StudJournal of Performance of Constructed Facilities / Volume 25 / Issue 5 / TECHNICAL PAPERS Use of Precast Concrete Walls for Blast Protection of Steel Stud Construction This research study examines the use of a precast concrete panel system for blast protection of facilities with exterior light gauge metal stud walls. The structural retrofit is designed for the specific case where internal operation of the facility cannot be interrupted. To meet this design requirement, a series of precast concrete panels are installed exterior to the building envelope with connections to the foundation at ground level and to the steel building frame at upper floor levels. To v...
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Next Article LOG IN or SELECT A PURCHASE OPTION:Buy PDF (US$30)PermissionsLog In to Read Online (HTML)Login to Download PDFBlast Testing of Aluminum Foam–Protected Reinforced Concrete Slabs
ABSTRACT
Aluminum foam is a newly developed mobile and lightweight material with excellent energy absorption capacities. Applying aluminum foam as a sacrificial protection layer on the bearing faces of protected structures can mitigate blast effects on the resistance capacities of structures against impact or blast loading. The aluminum foam undergoes great plastic deformation under transient dynamic loads before becoming fully densified, making it excellent for mitigating blast effects on these structures. In this paper, we conducted quasi-static testing on two types of aluminum foam specimens and obtained the primary parameters for the mechanical properties of aluminum foam specimens. We then used these two types of aluminum foams to protect the reinforced concrete (RC) slabs, and we conducted a series of tests to investigate the performance of the aluminum foam–protected RC slabs against blast loads. We tested a total of five foam-protected slabs and one control RC slab in the blast test program. The test results, including displacement and acceleration histories, performance of specimens, and maximum and permanent deflections, were fully reported. We then discussed the efficiency of aluminum foam to mitigate blast loads on protected RC slabs
This experimental study was conducted as part of a final-year research project, “New materials to protect against blast loading on structural members,” by John Ciccarelli, Adam Henderson, Karl Jordans, and Benjamin Noack, which was itself part of an Australian Research Council linkage project LP0883451 supported by Defence Science and Technology Organisation (DSTO) and VSL International Ltd.
Article Outline
I.Introduction
II.Compressive Tests on Foam Materials
III.Design of Experiments
A.Specimen Specifications
B.Experimental Setup
C.Data Acquisition and Measurement Devices
D.Blast Test Program
IV.Blast Test Results
A.Performance of Foam-Protected Specimens
B.Data-Recorded Blast Tests
V.Conclusion