全装配式混凝土结构界面软索连接拼缝抗剪性能试验研究

发布时间：2018-10-23 17:17

【摘要】：对5个设置界面软索连接的全装配混凝土试件进行静力加载试验研究,包括3个墙与墙连接试件及2个楼板与楼板连接试件.并采用目前已有的界面抗剪承载力计算方法对试验结果进行对比计算.研究结果表明:拼缝抗剪承载力主要由软索受拉产生的界面抗剪摩擦力和软索自身的销栓力组成,试件呈现良好的延性.针对试验结果,深入分析了软索连接拼缝的受力及破坏机理,采用合理的计算假定,提出了软锁连接拼缝抗剪性能的三折线受力模型,理论方法计算结果与试验值吻合比较理想,可为全预制混凝土结构软索连接拼缝的抗剪承载力计算及工程实践提供参考.
[Abstract]:The static loading tests of five fully assembled concrete specimens with interface soft cable connections were carried out, including three wall and wall specimens and two floor and floor specimens. The test results are calculated by using the existing calculation methods of the shear strength of the interface. The results show that the shear bearing capacity of the joint is mainly composed of the interface shear friction force generated by the soft cable tension and the pin bolt force of the soft cable itself, and the specimens show good ductility. According to the test results, the stress and failure mechanism of soft cable joint are deeply analyzed, and the three-fold force model of shear resistance of soft lock joint is put forward by using reasonable calculation assumption. The calculated results of the theoretical method are in good agreement with the experimental values, which can be used as a reference for the calculation of shear capacity and engineering practice of soft cable joints of prefabricated concrete structures.
【作者单位】：湖南大学土木工程学院;
【基金】：国家自然科学基金资助项目(51108171,51338004) 湖南省自然科学基金资助项目(14JJ30543) 中央高校基本科研业务费资助项目(HNDX20140316)
【分类号】：TU375

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