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Is the Load Transfer Mechanism of Each Story in a Multi-Story Building the Same Subjected to Progressive Collapse?
Progressive collapse is global structure performance, which involves all the stories above a removed column. However, previous experimental research work is more concentrated on single-story sub-structures or assemblies, mainly due to the concerns of cost and safety issues. In engineering practice, how to translate the research results of single-story sub-structures into multi-story structures becomes more interesting and urgent for engineers to design or rehabilitate structures against progressive collapse. In this paper, a planar and a three-dimensional reinforced concrete (RC) frames are modeled with fiber-based plastic hinges for nonlinear static analysis. The numerical models are initially validated by the experimental results of RC framed sub-structures, and then are used to investigate whether the load transfer mechanism of each story in a multi-story building subjected to progressive collapse is the same, and identical to the one obtained from a single-story substructure test. The parameters to be studied include loading positions, boundary conditions, the number of spans, explicit modeling of slabs.
Is the Load Transfer Mechanism of Each Story in a Multi-Story Building the Same Subjected to Progressive Collapse?
Progressive collapse is global structure performance, which involves all the stories above a removed column. However, previous experimental research work is more concentrated on single-story sub-structures or assemblies, mainly due to the concerns of cost and safety issues. In engineering practice, how to translate the research results of single-story sub-structures into multi-story structures becomes more interesting and urgent for engineers to design or rehabilitate structures against progressive collapse. In this paper, a planar and a three-dimensional reinforced concrete (RC) frames are modeled with fiber-based plastic hinges for nonlinear static analysis. The numerical models are initially validated by the experimental results of RC framed sub-structures, and then are used to investigate whether the load transfer mechanism of each story in a multi-story building subjected to progressive collapse is the same, and identical to the one obtained from a single-story substructure test. The parameters to be studied include loading positions, boundary conditions, the number of spans, explicit modeling of slabs.
Is the Load Transfer Mechanism of Each Story in a Multi-Story Building the Same Subjected to Progressive Collapse?
Yu, Jun (Autor:in) / Tian, Ji-wei (Autor:in)
Structures Congress 2017 ; 2017 ; Denver, Colorado
Structures Congress 2017 ; 165-179
04.04.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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