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Abstract:
Progressive collapse is a complex mechanical behavior of the whole structural system, involving the uncertainty of extreme load, the strong dynamic nonlinearity of structural behavior and the super large deformation characteristics of bearing mechanism. In order to better apply the existing research results of progressive collapse resistance, the experimental, numerical and theoretical research results of concrete structures with great influence at home and abroad were combed. The results show that the existing experimental research mainly focus on frame structure and plate column structure, and there is obviously less research on other types of structures such as shear wall structure and frame shear structure. The theoretical calculation model of main resistance mechanism is too complex, which is not conducive to engineering application. The existing numerical studies can not accurately consider the bond slip failure of reinforcement, fracture of reinforcement and softening and crushing of concrete under large deformation, and the accuracy need to be improved. The existing research basically does not consider the adverse effects of multi disaster coupling, which leads to inaccurate research conclusions and is not conducive to guiding the design. In the future, it is necessary to further study the failure law of dynamic collapse, the continuous collapse of different types of structures, the progressive collapse law of overall structural system, the progressive collapse mechanism related to disasters, the anti-progressive collapse system for mulii disaster defense, the antiprogressive collapse design method for engineering, and the efficient numerical analysis model of progressive collapse. © 2022, Editorial Department of Journal of Architecture and Civil Engineering. All rights reserved.
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Journal of Architecture and Civil Engineering
ISSN: 1673-2049
Year: 2022
Issue: 3
Volume: 39
Page: 1-28
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 4
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