Recently, a great amount of research has been carried out to resolve a growing need for durable and resilient highway bridge construction/reconstruction systems in many countries. As a part of such studies, prefabricated composite girders with innovative precast deck-to-girder continuous connections have been proposed that facilitate construction by eliminating interference during on-site processes. This study aims to figure out the effects on the flexural performance of the prefabricated composite girders along with the non-interference deployment of the precast deck-to-girder interface connections. In this study, two test specimens of the prefabricated composite girder were designed. Ultimate bending tests were conducted to experimentally evaluate the behavior of shear interfaces and flexural performances of the test specimen girders. It was revealed from this study that the intersection of the lap connection between the transverse deck reinforcement and the shear connectors will have a significant effect on the flexural performance of the prefabricated composite girder. The flexural performance of the prefabricated composite girder with intersected connection type is ensured while the non-intersected connection type influences the flexural performance more seriously than the intersected connection type. The AASHTO LRFD specifications appears applicable to the existing intersected connection details. Further, a series of parametric studies based on the verified finite element model were performed to examine the influence of various dominant factors on the flexural moment strength of the prefabricated composite girder. From the results of parametric studies, conclusions were drawn. The results of this study could be used for future research to establish a procedure for evaluating the bending resistance capacity of prefabricated composite girders based on structural ductility through rotating capacity.

最近，为了解决许多国家对耐用且有弹性的公路桥梁建设/重建系统日益增长的需求，已经进行了大量的研究。作为此类研究的一部分，提出了具有创新的预制桥面到梁连续连接的预制复合梁，通过消除现场过程中的干扰来促进施工。本研究旨在弄清楚预制组合梁的弯曲性能以及预制桥面与梁界面连接的无干扰部署对预制组合梁的弯曲性能的影响。在本研究中，设计了两个预制组合梁的试验样本。进行极限弯曲试验是为了通过实验评估试件梁的剪切界面行为和弯曲性能。研究表明，横向桥面钢筋与剪力连接件搭接连接的交叉会对预制组合梁的弯曲性能产生显着影响。相交连接型式的预制组合梁的抗弯性能得到保证，而非相交连接型式对受弯性能的影响比相交连接型式更为严重。AASHTO LRFD 规范似乎适用于现有的相交连接细节。此外，基于已验证的有限元模型进行了一系列参数研究，以检验各种主导因素对预制组合梁弯矩强度的影响。根据参数研究的结果，得出了结论。这项研究的结果可用于未来的研究，建立一种基于通过旋转能力的结构延性来评估预制组合梁抗弯能力的程序。