RESEARCH ON ASEISMIC PERFORMANCES OF BASE JOINTS FOR PREFABRICATED COMPOSITE STEEL-CONCRETE COLUMNS

ZHANG Xiangwei; LIU Jiming; WU Chenglong; WANG Chuanyi; TAN Wenya; QIAO Guangde

doi:10.13204/j.gyjzG20070705

Volume 51 Issue 7

Nov. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(7): 137-144

Zhang Peng, Liu Wenbing, Deng Yu, Qu Jian, Guo Jiajia, Yu Zhaohang, Zhao Simin. EXPERIMENTAL STUDY OF CRACK OF CFRP － PCPS COMPOSITES REINFORCED CONCRETE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(4): 72-76. doi: 10.13204/j.gyjz201504013

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ZHANG Xiangwei, LIU Jiming, WU Chenglong, WANG Chuanyi, TAN Wenya, QIAO Guangde. RESEARCH ON ASEISMIC PERFORMANCES OF BASE JOINTS FOR PREFABRICATED COMPOSITE STEEL-CONCRETE COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 137-144. doi: 10.13204/j.gyjzG20070705

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RESEARCH ON ASEISMIC PERFORMANCES OF BASE JOINTS FOR PREFABRICATED COMPOSITE STEEL-CONCRETE COLUMNS

doi: 10.13204/j.gyjzG20070705

School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China

Received Date: 2020-07-07
Available Online: 2021-11-11

Abstract

Abstract

To study the seismic performance of base joints for prefabricated composite steel-concrete columns, three new specimens with different ratios of shear span to effective length were conducted by quasi-static tests. The finite-element software ABAQUS was also used to simulate the specimens. The rationality of the numerical model was verified by comparing the results between the simulations and tests.The ratios of shear span to effective length and cross-section shapes of steel tubes inside the connection module were taken as variables, the influences of different rations of shear span to effective length and cross-section shapes of steel tubes on the aseismic performances of the composite column foundation were analyzed. It was indicated that when the ratios of shear span to effective length increased, the ultimate bearing capasity and energy dissipation capacity of the test tubes with steel tubes specimens PJ and YC inside the connection module were gradually reduced.The ultimate bearing capacity of PJ and YG reduced by 14.59% and 21.87% evenly. Correspondingly, the energy consumption reduced by 27.75% and 36.71% evenly. With the increase of the ratios of shear-span to effective lenghth, the ductility of PJ gradually weakened and stable gradually, while the YJ gradually weakened.The yield bearing capacity, peak bearing capacity and ultimate bearing capacity of the YG all were lower than that of the PJ, but the energy dissipation capacity and ductility had been significantly improved.
- base joint of composite column,
- prefabrication,
- aseismic performance,
- quasi-static test,
- finite element analysis

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References(18)

References

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