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《Sichuan Building Science》 2018-05
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Performance investigation on tensile strength of bolted T-shaped endplate connections to concrete-filled steel tube

LI Xiaolei;ZHANG Tao;WANG Zhiyu;WANG Qingyuan;Institute of Architecture and Environment,Sichuan University;School of Architecture and Civil Engineering,Chengdu University;  
In order to study the tensile strength of bolted T-shaped endplate connections to concrete-filled steel tube,eight connection specimens were tested by static loading test. Three typical failure modes of steel tubes and bolts were analyzed and the influences of anchorage effect of bolt,steel tube filled with concrete,wall thickness,bolt hole spacing and bolt strength of the different square steel pipes on tensile bearing capacity of connectors were analyzed and compared. The experimental results show that anchorage effect of bolt and tube wall thickness have the most significant influence on the tensile bearing capacity. The strength of steel pipe and bolt determines the failure mode. The specimens of steel pipe cross section and tube wall failure exhibit good ductile behavior,as opposed to the specimens of bolt failure.
【Fund】: 国家自然科学基金项目(51308363)
【CateGory Index】: TU398.9
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