Numerical study on collapse-resistant performance of multi-story composite frames under a column removal scenario

2021 ◽  
pp. 102957
Author(s):  
Zheng Tan ◽  
Wei-hui Zhong ◽  
Li-min Tian ◽  
Yu-hui Zheng ◽  
Bao Meng ◽  
...  
Keyword(s):  
Numerical Study ◽  
Composite Frames ◽  
Column Removal ◽  
Column Removal Scenario

scholarly journals Numerical study on steel-concrete composite floor systems under corner column removal scenario

2018 ◽  
Author(s):  
Qiu Ni Fu ◽  
Kang Hai Tan
Keyword(s):  
Load Transfer ◽  
Numerical Study ◽  
Displacement Curve ◽  
Fe Model ◽  
Peak Displacement ◽  
Static Responses ◽  
Column Removal ◽  
Floor Systems ◽  
Versus Peak ◽  
Column Removal Scenario

This paper evaluates the robustness of steel-concrete composite floor systems subjected to Corner Column (CC) removal scenario based on numerical simulations. Firstly, a FE model is statically analysed subjected to a CC removal scenario, yielding the static load-displacement curve, the failure mode and load-transfer mechanisms. These results are compared with those of composite floor systems under an Internal Column (IC) removal scenario. Besides, the FE model was dynamically analysed by six times under the respective six levels of loads by suddenly removing the corner column. The dynamic displacement-time responses under all levels of loads were obtained. Six pairs of load versus peak displacement constitute the pseudo-static response, to assess the load-carrying capacity and ductility of this composite floor system subjected to a sudden corner-column-removal scenario. Lastly, dynamic increase factors (DIFs) are obtained through comparing the quasi-static and pseudo-static responses, which is further compared with DIF under IC scenario.

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