中文摘要：

介绍了目前国内外研究中关于PBL连接件较为典型的几种构造形式，不同连接件试验的方法，以及近年来国内学者针对其力学性能改善而做出的新型PBL连接件；采用6个PBL剪力连接件，其中3个在500吨微机控制电液伺服压力实验机进行推出实验，另外3个通过一套自主设计的单调加载装置进行拔出实验，比较了孔径大小、腹板厚度以及埋置深度对试件极限承栽能力的影响。研究表明：加大孔径和腹板厚度能有效地提升剪力连接件的极限抗剪承载力；增加埋置深度能显著地增强剪力连接件的极限抗拉拔承载力。

英文摘要：

The domestic and foreign research on typical structure typesof PBL connector, different fitting test methods, and the domestic scholars in recent years for its mechanical performance improvement and new PBL connector are relatively introduced, six PBL shear connectors are designed,including three PBL shear connectors used in 500 tons of computer control electro-hydraulic servo pressure experiment machine with push-off experiments,and the other three used to compare the aperture size,web plate thickness and buried depth on the influence of specimen ultimate bearing capacity, through a set of independent design with pull out experiments. The results show that increasing the aperture and web thickness can effectively enhance the ultimate shear capacity of shear connectors,and increasing the embedment depth can significantly enhance the ultimate tensile of shear connector of the bearing capacity.