Load-resisting mechanisms of 3D composite floor systems under internal column-removal scenario

2017 ◽  
Vol 148 ◽  
pp. 357-372 ◽  
Author(s):  
Qiu Ni Fu ◽  
Kang Hai Tan ◽  
Xu Hong Zhou ◽  
Bo Yang
Keyword(s):  
Column Removal ◽  
Floor Systems ◽  
3D Composite ◽  
Column Removal Scenario

A mechanical model of composite floor systems under an internal column removal scenario

2018 ◽  
Vol 175 ◽  
pp. 50-62 ◽  
Author(s):  
Qiu Ni Fu ◽  
Kang Hai Tan ◽  
Xu Hong Zhou ◽  
Bo Yang
Keyword(s):  
Mechanical Model ◽  
Column Removal ◽  
Floor Systems ◽  
Column Removal Scenario

Progressive Collapse of 3D Composite Floor Systems with Rigid Connections under External Column Removal Scenarios

2020 ◽  
Vol 146 (11) ◽  
pp. 04020244
Author(s):  
Lu-Ming Ren ◽  
Bo Yang ◽  
Kang Chen ◽  
Ya-Juan Sun ◽  
De-Yang Kong
Keyword(s):  
Progressive Collapse ◽  
Column Removal ◽  
Floor Systems ◽  
3D Composite

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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