scholarly journals Study on Collapse Resistance of RC Frame under the Corner Column Removal Scenario

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7157
Author(s):  
Jin Xu ◽  
Sheliang Wang ◽  
Kangning Liu ◽  
Xiaoyi Quan ◽  
Fangfei Dong
Keyword(s):  
Progressive Collapse ◽  
Test Results ◽  
Reinforced Concrete Frame ◽  
Great Resistance ◽  
Concrete Frame ◽  
Floor Slabs ◽  
Collapse Resistance ◽  
Property Loss ◽  
Collapse Behavior ◽  
Column Removal Scenario

The progressive collapse of buildings induces a variety of catastrophic consequences, such as casualties and property loss over the past few decades. The corner column is more prone to abnormal load events compared to the inner column and outer column; thus, it is easier to trigger progressive collapse. By considering the effects of floor slabs and adjacent bays on progressive collapse behavior, the pseudo-static loading method was used to study the progressive collapse test of a 1/3 scaled, one story, 2 × 2-bay cast-in-place reinforced concrete frame substructure under the removal condition of a corner column. The test results show that the flexural deformation principally concentrates upon the components of a directly affected part (DAP), and compressive arch actions are observed in members of the indirectly affected part (IAP). Moreover, the slab adjacent to the removed column and periphery elements contributes great resistance to a progressive collapse.

Analysis on Progressive Collapse Resistance of Reinforced Concrete Frame Structures

2011 ◽  
Vol 243-249 ◽  
pp. 717-723
Author(s):  
Jin Gang Xiong ◽  
Yon Kang Zheng ◽  
Guan Min Cai ◽  
Yan Li
Keyword(s):  
Reinforced Concrete ◽  
Seismic Design ◽  
Progressive Collapse ◽  
Frame Structures ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Collapse Resistance ◽  
Rc Frame Structures ◽  
Reinforced Concrete Frame Structures

In this paper the analysis is conducted to investigate the progressive collapse resistance of typical reinforced concrete(RC) multi-story frame structures, which are designed according to the China code for seismic design of buildings. The analysis results show that the progressive collapse resistance will be enhanced with the seismic fortification intensity increasing. The progressive collapse resistance of RC frame structures with low seismic fortification intensity are poor. This implies that as for RC frame structures with low seismic or non-seismic demand, close attention must be paid to continuity and ductility in order to prevent progressive collapse.

Structural Concepts of High-Rise Buildings Resistant to Progressive Collapse

2018 ◽  
Vol 931 ◽  
pp. 54-59
Author(s):  
Galina M. Kravchenko ◽  
Elena V. Trufanova ◽  
Dmitry S. Kostenko ◽  
Sergey G. Tsurikov
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Reinforced Concrete Frame ◽  
Building Frame ◽  
Software Complex ◽  
Concrete Frame ◽  
High Rise ◽  
High Rise Building ◽  
Floor Slabs ◽  
Structural Concept

In the article there will be a consideration of collapse process progressive simulation of a high-rise building by removing the first-floor columns. The object of the study will be a 27-storeyed high-rise building. The high-rise building structural concept will consist on a monolithic reinforced concrete frame. The mounting base structural concept has been modeled as absolutely rigid. Static and dynamic calculations have been performed in the «Ing +» software complex, while the wind load pulsating component was taking into account using the finite-element method for the spatial slab-and-rod model. The dynamic calculation analysis has shown the obtained oscillation forms corresponding to the design requirements. The stress-strain behavior has been studied for the floor slabs as reinforce constructive of a typical floor. Structural concepts for the building frame of a high-rise building have been developed to reduce the progressive collapse risk. In the physically non-linear calculations, with the removal of the first-floor corner and central columns, four options for the sandwich floor slabs reinforcing were taking into account. The rational reinforcement option has been selected, in which the building is resistant to progressive collapse. The building frame structural concept with the floor slabs heavy-duty reinforcement of the first five floors has been suggested. An outrigger floor with encircling reinforced concrete trusses along the outer contour was included to reinforce the load-carrying framework. Recommendations on the choice of rational structural concepts, reducing a high-rise building progressive collapse risk have been given.

Experimental Study on Progressive Collapse Resistance of Reinforced Concrete Frame Structures

2011 ◽  
Vol 71-78 ◽  
pp. 871-875
Author(s):  
Yong Kang Zheng ◽  
Jin Gang Xiong ◽  
Zhao Qiang Wu ◽  
Yi Nong He
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Frame Structure ◽  
Seismic Resistance ◽  
Seismic Demand ◽  
Concrete Frames ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Collapse Resistance ◽  
Reinforced Concrete Frame Structures

The progressive collapse of the frame structure is simulated with testing a 1/3 scale, 4×2-bay and 3-storey reinforced concrete spatial frame in this paper. The experimental model was designed according to the non-seismic resistance demand, and the middle-side column of the bottom floor was replaced by a mechanical jack to simulate its initial local damage. Based on the experimental results, the applied load process and the load transferring mechanism of the model frame are analyzed. The progressive collapse-resisting performance of reinforced concrete frames with non-seismic demand are obtained.

Sign in / Sign up

Export Citation Format

Share Document