Performance of Precast Concrete Moment Frames Subjected to Column Removal: Part 2, Computational Analysis

PCI Journal ◽  
2017 ◽  
Vol 62 (5) ◽  
Author(s):  
Yihai Bao ◽  
Joseph A. Main ◽  
H. S. Lew ◽  
Fahim Sadek
Keyword(s):  
Computational Analysis ◽  
Precast Concrete ◽  
Moment Frames ◽  
Column Removal

Performance of Precast Concrete Moment Frames Subjected to Column Removal: Part 1, Experimental Study

PCI Journal ◽  
2017 ◽  
Vol 62 (5) ◽  
Author(s):  
H. S. Lew ◽  
Joseph A. Main ◽  
Yihai Bao ◽  
Fahim Sadek ◽  
Vincent P. Chiarito ◽  
...  
Keyword(s):  
Experimental Study ◽  
Precast Concrete ◽  
Moment Frames ◽  
Column Removal

scholarly journals An Experimental and Computational Study of Precast Concrete Moment Frames under a Column Removal Scenario

2015 ◽  
Author(s):  
Joseph A. Main ◽  
Yihai Bao ◽  
Hai Lew ◽  
Fahim H. Sadek ◽  
Vincent P. Chiarito ◽  
...  
Keyword(s):  
Computational Study ◽  
Precast Concrete ◽  
Moment Frames ◽  
Column Removal ◽  
Column Removal Scenario

scholarly journals Nonlinear Dynamic Response of a Precast Concrete Building to Sudden Column Removal

2021 ◽  
Vol 11 (2) ◽  
pp. 599
Author(s):  
Simone Ravasini ◽  
Beatrice Belletti ◽  
Emanuele Brunesi ◽  
Roberto Nascimbene ◽  
Fulvio Parisi
Keyword(s):  
Nonlinear Dynamic ◽  
Extreme Event ◽  
Progressive Collapse ◽  
Precast Concrete ◽  
Engineering Practice ◽  
Connection Strength ◽  
Rc Structures ◽  
Frame Building ◽  
Floor Slabs ◽  
Column Removal

Robustness of reinforced concrete (RC) structures is an ongoing challenging research topic in the engineering community. During an extreme event, the loss of vertical load-bearing elements can activate large-deformation resisting mechanisms such as membrane and catenary actions in beams and floor slabs of cast-in-situ RC buildings to resist gravity loads. However, few studies have been conducted for precast concrete (PC) buildings, especially focused on the capacity of such structures to withstand column loss scenarios, which mainly relies on connection strength. Additional resistance resource and alternate load paths could be reached via tying systems. In this paper, the progressive collapse resistance of a PC frame building is analyzed by means of nonlinear dynamic finite element analyses focusing on the fundamental roles played by beam-to-column connection strength and tying reinforcement. A simplified modelling approach is illustrated in order to investigate the response of such a structural typology to a number of sudden column-removal scenarios. The relative simplicity of the modelling technique is considered useful for engineering practice, providing new input for further research in this field.

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