低周反复荷载作用下CFRP-PCPs复合筋混凝土梁挠度和延性试验研究  

Experiment study on deflection and ductility of concrete beams of CFRP-PCPs composite tendons under low cyclic loadings

作　　者：张鹏[1] 钟卿瑜 邓宇[1] 聂威[1] 刘闻冰 牟晓辉[1] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《混凝土》2014年第6期9-12,共4页Concrete

基　　金：国家自然科学基金项目(51168006);国家自然科学基金项目(51108099);广西自然科学基金青年项目(2012GXNSFBA053159)

摘　　要：基于5根不同张拉控制应力和不同截面面积的CFRP-PCPs复合筋的混凝土梁在低周反复荷载下的试验,对CFRP-PCPs复合筋混凝土梁挠度进行研究,根据试验结果,提出了CFRP-PCPs复合筋混凝土梁挠度计算方法,对比表明试验结果与计算值吻合较好。试验表明,CFRP-PCPs复合筋混凝土梁相比于预应力CFRP筋混凝土梁,有效改善了构件的受力性能和变形能力。Based on different tension control stress and different cross-sectional dimension of CFRP-PCPs composite reinforced con-crete beams,cyclic loading were tested on five concrete beams.Deflection of composite reinforced concrete beams of CFRP-PCPs is inves-tigated.According to the experimental results,a deflection expression is put forward.Comparison with experimental results showed reason-able matching the calculated values.The experimental results show that compared with the concrete beams of prestressed CFRP tendons , the concrete beams of CFRP-PCPs composite tendons effectively improves the structure of the force performance and deformation capacity.

关 键 词：CFRP-PCPs复合筋 混凝土梁 低周反复荷载 试验研究 

分 类 号：TU528.01[建筑科学—建筑技术科学]