New analytical calculation models for compressive arch action in reinforced concrete structures
Engineering Structures(2018)
摘要
•A database of progressive collapse experiments of RC specimens is built.•An improved model is proposed to calculate the CAA resistance for RC beams.•The sectional stresses of RC beam-slab substructures under CAA are analyzed.•An explicit CAA calculation model for RC beam-slab substructures is proposed.
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关键词
Reinforced concrete frame,Progressive collapse,Compressive arch action,Calculation model,Slab effect
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