半钢性T型钢高强度螺栓连接承载力计算
- 摘 要
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徐 凌 (鞍山科技大学土木与交通工程学院 114044)李晓龙 (东北大学资源与土木工程学院 沈阳 110006)
[提要] 节点的半刚性对钢框架的内力、位移和结构的极限承载力的影响相当大，在钢框架设计中不能忽视。针对实际工程中采用的一种半刚性连接节点-T型钢连接，进行了极限承载力计算，通过比较节点各组成部分所能承受的荷载极限值，选取其中最小值作为节点的极限承载力。用此方法计算了2个不同的节点模型，与试验结果进行对比，算式可反应T型钢连接的实际工作性能。
[关键词] 钢框架 半刚性 T型钢连接 承载力 高强螺栓Calculation of Loading-carrying Capacity of Semi-rigid High Strength Bolt T-stub ConnectionsXu Ling ( Civil and Transportation Engineering Institute, Anshan University of Science and Technology, Ansban 114044, China )Li Xiaolong ( School of Resources and Civil Engineering , Northeastern University, Shenyang 110006, China )
Abstract: The behaviors of semi-rigid connections would make great effects on the bebaviors of steel frames such as the internal forces, the horizontal deflection and the ultimate load-carrying capacity, which could not be neglected to design the steel frames. The ultimate load carrying capacities of the T-stub connections that are regarded as semi-rigjd ones applied in factual projects are calculated. Compared with the ultimate load-carrying capacity of its components, the minimum is useful. Two different specimens' models of the connection are calculated. The results are compared with the experimental data, and they approximately reflect actual rotational behavior of T-stub connection.
Keywords: steel frames; semi-rigid; T-stub connection; load-carrying capacity; high-strength bolt
