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Damage Characteristics of Corrugated Steel Concrete Slab Under Contact Explosion Load

Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, ISSN: 1001-0645, Vol: 42, Issue: 5, Page: 453-462
2022
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Article Description

In order to explore the damage characteristics of reinforced concrete slabs strengthened with corrugated steel, reinforced concrete target slabs strengthened with corrugated steel were designed, and contact explosion experiments on corrugated steel reinforced concrete slabs were carried out. The typical damage characteristics of components were obtained, and the anti-explosion performance of reinforced concrete slabs strengthened with corrugated steel was demonstrated. Combined with the finite element software LS-DYNA, the failure modes of corrugated concrete slab, concrete slab and flat steel plate concrete slab with equal quality were compared, and the excellent anti-explosion performance of corrugated steel reinforced concrete slab was illustrated; the mid-span displacement of corrugated steel reinforced concrete slab under different contact explosion loads was obtained, and the weak direction of corrugated steel reinforced concrete slab under contact explosion load was given. Based on dimensional analysis, the engineering empirical formula of dimensionless mid-span displacement with respect to explosive quality is established.

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