DEFORMATION BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE BEAMS WITH BASALT FRP BARS UNDER REPEATED LOAD AFTER SUSTAINED LOADING

Han Quanji; Wang Shouheng; Zhu Haitang; Gao Danying; Cui Haibo

Volume 44 Issue 09

Jan. 2015

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Han Quanji, Wang Shouheng, Zhu Haitang, Gao Danying, Cui Haibo. DEFORMATION BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE BEAMS WITH BASALT FRP BARS UNDER REPEATED LOAD AFTER SUSTAINED LOADING[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(09): 74-77.

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DEFORMATION BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE BEAMS WITH BASALT FRP BARS UNDER REPEATED LOAD AFTER SUSTAINED LOADING

Publish Date: 2014-09-20

Abstract

Abstract

In order to study the deformation performance of steel fiber reinforced high-strength concrete beams with BFＲP rebars，the bending test of 7 beams under repeated load after suffering long-term sustaining load were carried out． The effects of reinforcement ratio of BFＲP bars，fraction of steel fiber by volume and loading level on deformation performance of beams were analyzed． The results shown that the bonding behavior between BFＲP rebars and concrete is not degradative after 10 loading-unloading cycles; the factors， including loading level，the dosage of steel fiber and the reinforcement ratio of BFＲP，express the different levels of influence on the load-deflection curve and the deflection recovery capability of test beams; and steel fiber reinforced high-strength concrete beams with BFRP rebars possess higher deflection recovery capability and better repeated load resistance．
- BFRP rebar,
- steel fiber reinforced high-strength concrete beam,
- long-term load,
- repeated load,
- deflection

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