Seismic performance of predamaged RC columns strengthened with HPFL and BSP under combined loadings

2020 ◽  
Vol 203 ◽  
pp. 109871
Author(s):  
Hua Huang ◽  
Min Huang ◽  
Wei Zhang ◽  
Mengxue Guo ◽  
Stanislav Pospisil
Keyword(s):  
Seismic Performance ◽  
Rc Columns ◽  
Combined Loadings

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.

Seismic Performance of CFRP Jacketed Sub-standard RC Columns Under High Axial Stress and Shear Demand

2021 ◽  
pp. 1278-1290
Author(s):  
Merve Nur Demir ◽  
Ugur Demir ◽  
Cem Demir ◽  
Alper Ilki
Keyword(s):  
Seismic Performance ◽  
Axial Stress ◽  
Rc Columns ◽  
Shear Demand

Experimental Investigation on Rehabilitation of Corroded RC Columns with BSP and HPFL under Combined Loadings

2020 ◽  
Vol 146 (8) ◽  
pp. 04020157 ◽  
Author(s):  
Hua Huang ◽  
Min Huang ◽  
Wei Zhang ◽  
Stanislav Pospisil ◽  
Tao Wu
Keyword(s):  
Experimental Investigation ◽  
Rc Columns ◽  
Combined Loadings

scholarly journals Seismic performance assessment of RC columns with interlocking hoops

2021 ◽  
Author(s):  
Tae-Hoon Kim
Keyword(s):  
Reinforced Concrete ◽  
Performance Assessment ◽  
Seismic Performance ◽  
Evaluation System ◽  
Damage Index ◽  
Seismic Performance Assessment ◽  
Rc Columns ◽  
Rc Structures ◽  
Damage Indices ◽  
Transverse Steel

The aim of this study is to analytically assess the seismic performance of reinforced concrete (RC) columns with interlocking hoops using a novel damage index, and to provide data for developing next generation seismic design criteria. Seismic performance of RC columns is controlled by the level of confinement provided by transverse steel. Interlocking hoops are commonly used in RC columns because they can provide more effective confinement than rectangular hoops. Three RC interlocking columns were tested under a constant axial load and a cyclically reversed horizontal load. A computer program, RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), is used to analyze RC structures. Novel damage indices aim to provide a means of quantifying numerically the performance level in RC columns with interlocking hoops sustained under earthquake loading. The proposed numerical method for the seismic performance assessment of interlocking columns is verified by comparison with the experimental results.

Seismic Performance of Large Rupture Strain (LRS) FRP-Wrapped Circular RC Columns

2021 ◽  
pp. 1914-1922
Author(s):  
Yu-Feng Zhang ◽  
Yu-Lei Bai ◽  
Peng-Xuan Sun ◽  
Jian-Guo Dai
Keyword(s):  
Seismic Performance ◽  
Rc Columns ◽  
Rupture Strain
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