Evaluation for Progressive Collapse Resistance of a RC Flat Plate System Using the Static and Dynamic Analysis

2011 ◽  
Vol 23 (2) ◽  
pp. 245-252
Author(s):  
Seon-Woong Lee ◽  
Sung-Woo Shin
2012 ◽  
Vol 40 ◽  
pp. 205-217 ◽  
Author(s):  
Seweryn Kokot ◽  
Armelle Anthoine ◽  
Paolo Negro ◽  
George Solomos

2014 ◽  
Vol 578-579 ◽  
pp. 779-783
Author(s):  
Yang Ma ◽  
Lai Wang

A finite element method was developed to investigate the semi-rigid connection mechanical behaviors in the process of CFST structures progressive collapse, and different semi-rigid connection joint stiffness were taken into consideration and compared to rigid connection. Nonlinear static and dynamic analysis were carried out with alternate path method. The numerical result shows that the increase of joint stiffness would evidently enhance the structural progressive collapse resistance performance, and CFST structures have excellent characteristic to prevent progressive collapse, the great deformation capacity and energy dissipation ability of semi-rigid connections are advantageous to progressive collapse resistance.


2017 ◽  
Vol 11 (1) ◽  
pp. 200-215 ◽  
Author(s):  
Fengwei Shi ◽  
Lai Wang ◽  
Shuo Dong

Background and Objective: Progressive collapse resistance of the steel moment-frame with composite floor slabs can be assessed by sudden column loss scenarios. In order to investigate the progressive collapse-resistant capacity of the steel moment-frame with composite floor slabs, a simplified approach based on the theory of membrane action and energy equilibrium principle is presented, which assessed the behaviour of progressive collapse resistance of this frame subjected to the removal of a penultimate column via the static and dynamic analysis. Mateial and Method: The residual vertical bearing capacity model considering of the membrane action and tie force (TF) method of composite floor slabs is developed to evaluate the force mechanism of the composite floor slabs. An energy-based theoretical framework is proposed for calculating the maximum allowable dynamic demands based on the nonlinear static Pulldown analysis, which is used to explore the relationship between of dynamic and static response in the progressive collapse process. Furthermore, the finite element software SAP2000 is used to calculate the numerical example to verify the reliability of this simplified approach. Results: The results show that the composite floor slabs significantly improve the structural progressive collapse-resistant ability and this simplified approach evaluates the progressive collapse resistance of the whole structure effectively. Conclusion: The existence of the floor can increase the ductility of the structure, and increase the progressive collapse-resistant ability. The appropriate value of the DIF depends on the ductility and amount of inelastic action the structure would experience during the column removal scenario.


2011 ◽  
Vol 82 ◽  
pp. 326-331 ◽  
Author(s):  
Mehrdad Sasani ◽  
Ali Kazemi-Moghaddam

Experimental and analytical studies are carried out to evaluate the response of an actual reinforced concrete structure following severe initial damage, which was caused in part by simultaneous explosion (removal) of four adjacent columns. In addition, two beam segments in the vicinity of the removed columns were also exploded. The structure resisted progressive collapse following such severe initial damage. The progressive collapse resisting mechanisms primarily included the axial-flexural action of the second floor deep beams and Vierendeel action of the flat plate system in floors above. In the analytical studies, a nonlinear model of the structure is used, which accounts for axial-flexural interaction of beams and slabs. The analytical results show good agreement with experimental data.


2021 ◽  
Vol 1777 (1) ◽  
pp. 012037
Author(s):  
R Han ◽  
T Y Yin ◽  
X D Yang ◽  
Y Zhang ◽  
Y S Zhang ◽  
...  

2021 ◽  
Vol 38 ◽  
pp. 102228
Author(s):  
Gianrocco Mucedero ◽  
Emanuele Brunesi ◽  
Fulvio Parisi

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