钢-超高性能混凝土组合板连接件的抗剪性能  

The shear capacity of steel-ultra-high performance concrete composite board connectors

作　　者：肖亚鑫 鲁乃唯 陈方怀 XIAO Ya-xin;LU Nai-wei;CHEN Fang-huai(School of Civil Engineering,Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《交通科学与工程》2020年第1期44-49,共6页Journal of Transport Science and Engineering

基　　金：国家重点基础研究发展规划(973计划)项目(2015CB057705);湖南省自然科学基金项目(2018JJ3540)。

摘　　要：为研究钢?超高性能混凝土组合桥面板栓钉连接件的抗剪承载力,采用ABAQUS有限元软件进行了推出试件试验过程的非线性数值模拟。通过荷载?相对滑移曲线,分析验证了该数值模拟方法的有效性,研究了推出试件中超高性能混凝土强度、栓钉直径和长度等参数对栓钉连接件的抗剪承载力的影响。研究结果表明:栓钉连接件的极限抗剪承载力随着超高性能混凝土强度的提高、栓钉直径和长度的增加而增加,栓钉连接件的极限抗剪承载力与栓钉直径呈现线性近似关系。相比栓钉直径和长度,超高性能混凝土抗压强度的提高对栓钉连接件抗剪承载力的影响相对较小。In order to study the shear capacity of steel-ultra-high performance concrete composite bridge stud connectors,the nonlinear numerical simulation of the test process of the test piece was carried out by using ABAQUS finite element software,and the load-relative slip curve was adopted.The analysis verifies the effectiveness of the numerical simulation method.The effects of sensitive parameters such as ultra-high performance concrete strength,stud diameter and length on the shear capacity of the stud connectors were studied.The results show that the ultimate shear capacity of the stud connectors increases with the increase of ultra-high performance concrete strength,the diameter of the studs and the length of the studs.The ultimate shear capacity of the stud connectors is linearly related to the diameter of the pegs.Compared with the diameter and length of the stud,the ultra-high performance concrete compressive strength has a relatively small influence on the shear bearing capacity of the stud connector.

关 键 词：钢-超高性能混凝土组合桥面板 栓钉 抗剪承载力 有限元 

分 类 号：TU443.37[建筑科学—岩土工程]