International Journal of Earth Sciences and Engineering

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Seismic Performance of Partially Prestressed Frame Supporting Transfer Beam with Reinforcement of CFRP Bars


Affiliations
1 Department of Civil Engineering, Logistical Engineering University, Chongqing-401311, China
2 Department of Oil Application and Management Engineering, Logistical Engineering University, Chongqing-401311, China
3 078 Engineering Headquarters, Xichang Satellite Launch Center, Xichang Sichuan-615000, China
 

The carbon fiber reinforced plastic (CFRP) bars were assembled on the top and bottom of the transfer beam. Pseudo-static test was carried out on the partially prestressed frame supporting transfer beam with CFRP bars. The cracks development law and reinforcement strain law of the specimens were analyzed. Moreover, the failure pattern, bearing capacity, hysteretic curve and seismic performance were also studied. The test results indicated that crack development in the middle region of the transfer beam could be effectively prevented by prestressing the CFRP bar, giving the formulated transfer beam a better bearing capacity. In addition, the yield-to- tensile ratio of 1.31 and the full hysteresis curve confirmed that the partially prestressed frame supporting transfer beam formulated with CFRP bars possessed satisfied seismic performance.

Keywords

Prestress, CFRP Bars, Frame Supporting Transfer Beam, Seismic Performance.
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  • Seismic Performance of Partially Prestressed Frame Supporting Transfer Beam with Reinforcement of CFRP Bars

Abstract Views: 177  |  PDF Views: 125

Authors

Lai Xu
Department of Civil Engineering, Logistical Engineering University, Chongqing-401311, China
Jin Chen
Department of Civil Engineering, Logistical Engineering University, Chongqing-401311, China
Shijuan Wu
Department of Civil Engineering, Logistical Engineering University, Chongqing-401311, China
Zeqi Jiang
Department of Oil Application and Management Engineering, Logistical Engineering University, Chongqing-401311, China
Zheng Jiang
078 Engineering Headquarters, Xichang Satellite Launch Center, Xichang Sichuan-615000, China

Abstract


The carbon fiber reinforced plastic (CFRP) bars were assembled on the top and bottom of the transfer beam. Pseudo-static test was carried out on the partially prestressed frame supporting transfer beam with CFRP bars. The cracks development law and reinforcement strain law of the specimens were analyzed. Moreover, the failure pattern, bearing capacity, hysteretic curve and seismic performance were also studied. The test results indicated that crack development in the middle region of the transfer beam could be effectively prevented by prestressing the CFRP bar, giving the formulated transfer beam a better bearing capacity. In addition, the yield-to- tensile ratio of 1.31 and the full hysteresis curve confirmed that the partially prestressed frame supporting transfer beam formulated with CFRP bars possessed satisfied seismic performance.

Keywords


Prestress, CFRP Bars, Frame Supporting Transfer Beam, Seismic Performance.