Mechanical properties of concrete beams reinforced with CFRP prestressed prisms under reverse cyclic loading

Jiongfeng Liang , Deng Yu , Jianbao Wang , Pinghua Yi

Abstract

This paper presents the results of cyclic loading tests on concrete beams reinforced with various reinforcement, including ordinary steel bars, CFRP bars and CFRP prestressed concrete prisms(PCP). The main variable in the test program was the level of prestress and the cross section of PCP. The seismic performance indexes including hysteretic loops, skeleton curve, ductility, energy dissipation capacity and stiffness degradation were analyzed. The results show that the CFRP prestressed concrete prisms as flexural reinforcement of concrete beams has good seismic performance. And the ductility and the energy dissipation capacity were good, the hysteresis loops were full and had large area.

Key Words

CFRP; prism; cyclic loading; beam; seismic performance

Address

Jiongfeng Liang — State Key Laboratory Breeding Base of Nuclear Resources and Environment, Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, Nanchang, P.R. China
Jiongfeng Liang, Jianbao Wang, Pinghua Yi — Faculty of Civil&Architecture Engineering, East China Institute of Technology, Nanchang, P.R. China
Deng Yu — College of Civil and Architecture Engineering, Guangxi University of Science and Technology, Liuzhou, P.R. China

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