Abstract: Two new types of shear connectors(i.e.PBL conector and embedded conector)and traditional bolt connectors are contrasted，and shear con ector of composite steel-concrete con ector is especially analyzed by FEA method.Analysis resuits indicate that anti-shear pin formed in two types ofconnectors plays a great role in resisting longitudinal shear ofcomposite beam。and the prope rest shear con ecter used for the construction is being pursued ，which Can be the foundation of such kind of building .

Key words: composite beam, shear connector, concrete anti—shear pin

摘要： 就目前出现的两种新型连接件(PBL连接件和埋人式连接件)与传统的栓钉连接件进行对比分析，着重对钢. 砼组合梁的连接件进行有限元空间分析；通过分析两种新型的连接件内形成的砼抗剪销对抵抗组合梁的纵向剪力 的作用，寻求最适宜用于实际工程的连接件；为钢一砼组合箱梁的设计、施工技术研究提供依据.

关键词: 组合梁, 连接件, 砼抗剪销