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Pull-out Experiment on Shear Connector in Embedded Composite Beams with Notched Web

LI Xian-hui1,LI Guo-qiang1,2 (1.School of Civil Engineering,Tongji University,Shanghai 200092,China;2.State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)  
In order to study the characteristics of resisting lift of the shear connector in embedded composite beams with notched web,6 pull-out specimens were designed to be tested considering different effect factors.The test phenomena were observed and the pull-out forces and displacement relation curves were gained.The mechanic model of the steel plate connector was established based on the pull-out forces.Meanwhile,the influences of thickness of the web,the diameter of transverse rebar and transverse reinforcement ratio were analyzed.It was discussed whether embedded composite beams with notched web could be satisfied with this connector,considering the shear capacity of this kind of connector;structure requirements of the shear connector in embedded composite beams were concluded with the reference of the requirements of the headed shear studs in Code for Design of Steel Structures(GB 50017—2003).The results show that this kind of shear connector has a good characteristics of resisting lift in embedded composite beams.
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