木-混凝土组合梁剪力连接件研究现状

Review of Study Status Quo of Shear Stud Connectors in Timber-Concrete Composite Girder

木-混凝土组合梁受力性能优劣的关键在于剪力连接件的设置,为指导连接件设计,从剪力连接件构造形式、连接件破坏形式、连接件抗剪承载力计算方法、连接件抗剪刚度计算方法等方面,全面介绍目前国内、外学者的研究成果,并对研究中存在的问题进行了分析。研究分析可知,现已有多种可靠的连接件运用于木-混凝土组合梁工程实际中,并表现出优异的连接性能。其中,剪力榫-锚钉型连接件是整体性能相对最好的连接件形式,具有在相关土木建筑领域的推广应用价值。

The load bearing behavior of the timberconcrete composite girder is closely related to the arrangement of shear stud connectors .In order to guide the design of connectors ,the study achievements of the scholars both at home and abroad are fully introduced from aspects of the structural forms ,failure mode ,calculation methods of shear load bearing capacity and the antishear stiffness of shear stud connectors ,and the problems in the studies were analyzed .It can be concluded from the analysis that there are a number of types of reliable connecters used in the actual timberconcrete composite girder projects and these connectors exhibit outstanding connecting preformance .However ,the connectors of shear dowelanchor bolt type are the ones with the best integral performance ,which is worth popularizing in the related civil engineering field .