摘要
拉挤成型纤维复合材料在土木工程中应用广泛,复合材料的连接问题是其结构设计的关键问题之一。目前复合材料的连接方式主要有胶接、螺栓连接和胶栓混接三种,本文通过试验研究针对FRP的不同连接方式进行对比分析,研究表明胶栓混合连接综合了胶接和螺栓连接的优点,具有刚度大、延性好、应力分配合理等特点。该文还针对胶栓混合连接节点,详细分析了端距、螺栓个数、搭接长度和螺栓直径等主要因素对其破坏模式、承载力的影响,从而为FRP节点设计提供参考。
Pultruded fibre reinforced plastics are widely used in civil engineering. The connection problem of composites is one of the key problems on the design of composite structures. There are three main connection methods for FRP: bonded connection, bolted connection and hybrid connection. In this paper, through the comparative analysis of these three connection methods, it can be seen clearly that because hybrid joints incorporate the advantages of the bonded and bolted connections, hybrid joints have larger stiffness, better ductility, and reasonable stress distribution. In addition, there is an increase in carrying capacity than that of bolted connections. Moreover, for a hybrid connection joint, the main influence factors are studied by experiments for its failure mode and carrying capacity, such as the end distance, the number of bolts, the lap length and the diameter of bolts.
出处
《工程力学》
EI
CSCD
北大核心
2015年第S1期314-321,共8页
Engineering Mechanics
基金
高等学校博士学科点专项科研基金项目(20110006120022)
关键词
FRP
连接
试验
胶栓混接
胶结
螺栓连接
FRP
connection
experiment
hybrid connection
bonded connection
bolted connection
