Abstract
AbstractA reliable and robust shear connection is required in the cast in situ portion of a segmental composite bridge girder to carry the shear force between the steel and concrete. When the shear connectors are arranged with close spacing in order to satisfy design requirements, group effects will have a significant influence on the structural behavior of the shear connection. This paper presents an investigation of the static behavior of group-arranged stud–bolt hybrid shear connection in long-span segmental bridges, with the bolt shear connectors as the threaded outstands of the high-strength bolts used in the splice connections needed in segmental construction. Seven specimens with different arrangements of the studs and high-strength bolts were fabricated and tested. The failure modes, load-slip relationships, and shear strength were obtained and discussed. The results showed that the bolts could increase the shear strength of the connection and that the embedded length of the bolts had a marked eff...
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