An Experiment on Bond-anchoring Property of Prestressing Spiral Groove Tendon
Prestressing spiral groove tendon is a new sort prestressing tendon, its characteristic value of tensile yield strength fyk=1000MPa. Firstly, the yield strength, ultimate tensile strength, elastic modulus and elongation are all tested. According to 68 pullout tests, the bond-anchoring curves and failure modes have been studied, and the effects of concrete strength, diameter, anchoring length, thickness of concrete cover and stirrup ratio have been all analyzed. Finally, the equation for ultimate bond-anchoring strength has been suggested by statistical regression, and the test results are in good agreement with values of the suggested equation.
Bond-anchoring Anchoring length Slip
Meng Chen Pinwu Guan
School of Civil Engineering, Zhengzhou University, Henan 450002, P.R. China
国际会议
上海
英文
1685-1688
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）