Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (2): 26-32.doi: 10.3969/j.issn.1000-565X.2015.02.005

• Architecture & Civil Engineering • Previous Articles     Next Articles

Investigation into Half Grout Sleeve Splicing for Rebars via Static Tensile Test

HUANG Yuan ZHU Zheng-geng HUANG Deng YI Wei-jian ZHANG Rui   

  1. College of Civil Engineering,Hunan University,Changsha 410082,Changsha,China
  • Received:2015-04-24 Revised:2015-08-14 Online:2016-02-25 Published:2016-01-04
  • Contact: 黄远(1982-) ，男，博士，副教授，主要从事组合结构及装配式结构研究． E-mail:huangy09@gmail.com
  • About author:黄远(1982-) ，男，博士，副教授，主要从事组合结构及装配式结构研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51478174， 51338004) and the Natural Science Foundation of Hunan Province( 14JJ3054)

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Abstract: In order to investigate the mechanical properties of half grout sleeve splicing for rebars,14 specimens were tested under static tension,with such main parameters as bar diameter,sleeve dimension and rebar deviation being considered.The results show that ( 1) the tested half grout sleeves meet the strength requirements well; ( 2) the specimens are destroyed in three failure patterns including the tension fracture of the rebar,the rebar scratchplough pulling out of the rebar and the sliding wire of the sleeve; and ( 3) when the tension fracture of the rebar occurs,the rebar deviation has little effect on the bearing capacity of specimens.Based on the analysis of the test results,a design method is put forward to avoid the occurrence of the rebar scratch-plough pulling out and the sleeve sliding wire.

Key words: rebar, half grout sleeve splicing, failure mode, mechanical property, static tensile test, bearing capacity

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