核心筒墙体与钢桁架梁弦杆连接性能试验研究
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摘要
为研究内藏钢桁架混凝土核心筒墙体与钢桁架梁弦杆连接性能,结合大连国际会议中心工程,进行了4个不同构造1/2缩尺的核心筒墙体与钢桁架梁弦杆连接节点在单向重复荷载下的工作性能试验研究.分析了各试件的承载力、刚度、延性及破坏特征,进行了核心筒墙体与钢桁架梁弦杆连接节点处墙体抗平面外变形的承载力计算,计算结果与实测结果符合较好.研究表明:本研究的核心筒墙体与钢桁架梁弦杆连接节点构造合理,满足其节点受力要求.
To ascertain the connective performance between core tube walls and steel truss chords,four 1/2 scaled connections between core tube walls and steel truss chords with different constructions were designed based on the project of Dalian Conference Center.These were then tested under one-way cyclic loading.The bearing capacity,stiffness,ductility and failure characters were compared,and a simplified calculation method for bearing capacity of the connections between core tube walls and steel truss chords was established.The results obtained from the calculation agree well with those from the experiment.Results show that the joint constructions between core tube walls and steel truss chords in this paper are reasonable,and they meet the connection requirements under load.
引文
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