Investigation of seismic performance of RC column with electrochemical chloride extraction-strengthening by MPC-CFRP

2021 ◽  
Vol 247 ◽  
pp. 113228
Author(s):  
Yue Li ◽  
Jianglin Liu ◽  
Zigeng Wang ◽  
Caiyun Jin ◽  
Ji Hao ◽  
...  
Keyword(s):  
Seismic Performance ◽  
Rc Column ◽  
Electrochemical Chloride Extraction

Analysis of Seismic Performance of RC Frames with Centrally Reinforced Columns

2013 ◽  
Vol 671-674 ◽  
pp. 1319-1323
Author(s):  
Zi Xue Lei ◽  
Yu Hang Han ◽  
San Sheng Dong ◽  
Jun Qing Guo
Keyword(s):  
Seismic Performance ◽  
Cross Sections ◽  
Carrying Capacity ◽  
Pushover Analysis ◽  
Seismic Load ◽  
Load Carrying Capacity ◽  
Rc Columns ◽  
Rc Column ◽  
Rc Frames ◽  
Load Carrying

A centrally reinforced column is a new type of RC columns, formed by providing a reinforcement skeleton at the central part of the cross section of an ordinary RC column. Tests have shown that as compared with an ordinary RC column, this type of columns has a higher load carrying capacity and ductility. From the pushover analysis of a frame composed of ordinary RC columns and one consisting of centrally reinforced columns, their seismic performance under seismic load of 9-degree intensity was studied according to Chinese code, including target displacements, story-level displacements, interstory drifts, appearance and development of plastic hinges. The results indicate that although the dimensions of cross sections of columns in the frame with centrally reinforced columns are smaller than those of the ordinary frame, the former still has a higher overall load carrying capacity and seismic performance than the latter.

Experimental Study of Seismic Performance Improvement of Pilotis RC Column Strengthened with FRP

2019 ◽  
Vol 10 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Jeongjin Choi ◽  
◽  
Taehun Lee ◽  
Byeongjin Park ◽  
Kwanggun Rho ◽  
...  
Keyword(s):  
Experimental Study ◽  
Performance Improvement ◽  
Seismic Performance ◽  
Rc Column

Experimental study on seismic performance of latticed CFST-RC column connected with RC web

2018 ◽  
Vol 126 ◽  
pp. 258-265 ◽  
Author(s):  
Raghabendra Yadav ◽  
Huihui Yuan ◽  
Baochun Chen ◽  
Zhibin Lian
Keyword(s):  
Experimental Study ◽  
Seismic Performance ◽  
Rc Column

scholarly journals Experimental Quantification on the Residual Seismic Capacity of Damaged RC Column Members

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Chien-Kuo Chiu ◽  
Hsin-Fang Sung ◽  
Kai-Ning Chi ◽  
Fu-Pei Hsiao
Keyword(s):  
Energy Dissipation ◽  
Seismic Performance ◽  
Failure Modes ◽  
Shear Failure ◽  
Assessment Method ◽  
Seismic Capacity ◽  
Rc Column ◽  
Damage States ◽  
Energy Dissipation Capacity ◽  
Reduction Factors

Abstract To quantify the post-earthquake residual seismic capacity of reinforced concrete (RC) column members, experimental data for 6 column specimens with flexural, flexural–shear and shear failure modes are used to derive residual seismic capacity of damaged RC column members for specified damage states in this work. Besides of the experiment data, some related researches are also investigated to suggest the reduction factors of strength, stiffness and energy dissipation capacity for damaged RC column members, respectively. According to the damage states of RC columns, their corresponding seismic reduction factors are suggested herein. Taking an RC column with the flexural–shear failure for an example, its reductions factors of strength, stiffness and energy dissipation capacity are 0.5, 0.6 and 0.1, respectively. This work also proposes the seismic performance assessment method for the residual seismic performance of earthquake-damaged RC buildings. In the case study, this work selects one actual earthquake-damaged school building to demonstrate the post-earthquake assessment of seismic performance for a damaged RC building.

Test Research on Seismic Performance of Column

2012 ◽  
Vol 166-169 ◽  
pp. 1058-1061
Author(s):  
Hai Tao Wan ◽  
Peng Li
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Effective Means ◽  
Lateral Force ◽  
Test Method ◽  
Reinforced Concrete Frame ◽  
Structure Damage ◽  
Rc Column ◽  
Concrete Frame ◽  
Reinforced Concrete Frame Structures

Reinforced concrete (RC) column component is a very important lateral force-resisting member which is widely used in China. Its seismic behavior has a great impact on the seismic performance of the overall structure. Damage of some reinforced concrete frame structures under the earthquake is caused by the damage of columns, So RC columns are an essential seismic members. The paper introduces the design of RC column specimen, mechanical properties of materials, production of RC column specimen, test method, loading device, loading system, the contents of measurement and data acquisition in detail. From the above analysis, it is obvious that the test is the most effective means of studying the seismic performance of column.

A numerical method for improving seismic resistance of concrete based on its meso-scale damage mechanisms

2019 ◽  
Vol 08 (01) ◽  
pp. 1850031
Author(s):  
Bin Sun
Keyword(s):  
Seismic Performance ◽  
Damage Evolution ◽  
Seismic Damage ◽  
Seismic Resistance ◽  
Model Parameters ◽  
Rc Column ◽  
Evolution Simulation ◽  
Damage Process ◽  
Meso Scale

In this study, reliable image-based meso-scale damage evolution simulation of concrete can be executed by considering its heterogeneous meso-components. Meso-scale damage evolution of concrete with different meso-components are simulated and analyzed here, which can be used to optimize seismic resistance of concrete. As a case study, seismic damage process of a reinforced concrete (RC) column with different meso-component parameters are simulated. From the simulation results, it can be seen that improvement of the properties of interfacial transition zone (ITZ) can significantly improve the seismic performance of RC columns. The established reliable damage evolution simulation of concrete can supply a useful numerical tool to study the method for improving seismic performance of RC column such as optimizing concrete’s meso-model parameters.

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