Fatigue tests of composite beam by steel fiber reinforced self-stressing concrete in the hogging bending

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外文摘要：Through the experiments of 7 T-section composite beams, steel fiber reinforced self-stressing concrete (SFRSC) as the composite beam in the composite layer was studied under the hogging bending. The tests simulated composite layer tensile strain under the hogging bending of inverted loading composite beams, and studied the relationship under the different fatigue stress ratios between fatigue cycles and steel bar's stress range, crack width, stiffness loss and damage, etc., in composite layer. This article established fatigue life equation, and analyzed SFRSC reinforced mechanism to crack width and stiffness loss. The results show that SFRSC as the composite beam concrete has excellent properties of crack resistance and tensile, can reinforce the fatigue crack width and stiffness loss of composite beams, and improve the durability and in normal use of composite beams in the hogging bending zone.

外文关键词：

steel fiber reinforced self-stressing concrete (SFRSC)composite beamhogging bendingfatigue

作者：

HU Tie-ming、HUANG Cheng-kui、LIANG Zhen-yu、CHEN Xiao-feng

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作者单位：

School of Architectural and Civil Engineering, Shenyang University, Shenyang 110044, P. R. China

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, P. R. China

基金：

Science and Technology of Department of Communications of Liaoning ProvinceScience and Technology of Department of Education of Liaoning Province

项目编号：

200514L2010378

出版年：

2010

DOI：

10.1007/s11741-010-0673-3

上海大学学报(英文版)

上海大学

上海大学学报(英文版)

影响因子：0.196

ISSN：1007-6417

年,卷(期)：2010.14(6)

参考文献量4