EXPERIMENTAL RESEARCH ON CRACK WIDTH OF HRB500 STEEL BARS RC BEAMS

Gao Ruiping; Qiu Hongxing; Hu Tao; Ding Zhenkun; Lan Zongjian

doi:10.13204/j.gyjz201003016

Volume 40 Issue 3

Dec. 2014

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Gao Ruiping, Qiu Hongxing, Hu Tao, Ding Zhenkun, Lan Zongjian. EXPERIMENTAL RESEARCH ON CRACK WIDTH OF HRB500 STEEL BARS RC BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(3): 66-70. doi: 10.13204/j.gyjz201003016

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EXPERIMENTAL RESEARCH ON CRACK WIDTH OF HRB500 STEEL BARS RC BEAMS

doi: 10.13204/j.gyjz201003016

1.
School of Civil Engineering,Southeast University,Nanjing 210096,China

Received Date: 2009-04-01
Publish Date: 2010-03-20

Abstract

Abstract

Experiment was carried out on crack width of 15 concrete beams reinforced with HRB500 steel bars. Crack properties of specimens were studied; and the calculating method of crack width in GB 500102002Code for Design of Concrete Structureswas analyzed. The results indicate that the parallel relationship of sm-s is true for HRB500 steel bars. It is proper to take 0. 87 for coefficient of internal force arm. Test results of crack spacing and crack width is smaller than that calculated by the formula from GB 500102002. Adjusting bond coefficient of HRB500 steel bars to 1. 2 can improve the accuracy of the formula. Crack calculating mode of GB 500102002 is practical while the calculated maximum crack width is conservative.
- HRB500 steel bar,
- concrete beams,
- crack spacing,
- crack width,
- experimental study

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References(7)

References

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