Shear performance of concrete beams with BFRP-reinforcement and steel bar combination reinforcement

doi:10.19936/j.cnki.2096-8000.20231228.003

Abstract

Abstract: Due to the excellent corrosion resistance property of FRP (fiber reinforced polymer) bars, the durability problem caused by steel bar corrosion can be fundamentally solved by using FRP reinforcement as a substitute for ordinary steel bars. However, there are still many topics needed to be made clear regarding the load-carrying performance of FRP-reinforced concrete members or structures. By using hybrid reinforcement of FRP bars and steel bars, this paper experimentally studied the effects of elastic modulus and steel ratio of reinforcement on the shear performance of concrete beams with BFRP-reinforcement and steel bar combination reinforcement. In addition, based on the test results, this paper further performed a validation of the shear strength evaluation formula proposed by codes of various countries. It is hoped that this paper could contribute to the further understanding of the shear performance of FRP-reinforced concrete beams.

Key words: BFRP bars, concrete beams, load carrying mechanism, shear strength, formula evaluation, composites

CLC Number:

TB332

XUE Xin, CHEN Jian, PENG Junzhen. Shear performance of concrete beams with BFRP-reinforcement and steel bar combination reinforcement[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(12): 19-27.

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