Study on static performance of steel secondary beam-concrete main girder joints of composite structure floor
Two static load tests were conducted on the steel secondary beam-concrete main grider joints.The stress processes and failure mechanisms of the two types of joints were analyzed.The corresponding loads and displacements of the specimens at the elastic stage,yield stage,ultimate stage and failure stage were obtained,and the stress in the key parts of the steel secondary beam and steel reinforcement during the specimens failure was analyzed.The results show that the final failure of the two specimens begins with the yielding of the lower flange of the steel secondary beam,and the anchoring of the joint area is good,belonging to the plastic failure of the secondary component.The plug-in joint is a semi rigid connection joint,and the embedded joint is a hinged joint.
steel secondary beamconcrete main girderjointexperimental studystatic performance
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万方数据
