外套管式梁柱节点初始刚度的理论计算模型  

Theoretical Model for the Initial Stiffness of Outer-shell Beam-column Connection

作　　者：李黎明[1] 陈以一[1] 李宁 蔡玉春[3] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]北京市建筑设计研究院7S1工作室,北京100045 [3]北京赛博思工业化住宅集成系统工程有限公司,北京100037

出　　处：《华中科技大学学报（城市科学版）》2009年第3期29-32,共4页Journal of Huazhong University of Science and Technology

基　　金：国际钢铁协会livingsteel项目资助

摘　　要：针对新型外套管式梁柱连接节点,考虑节点域外套钢板的构造形式,将节点分解为若干组件,求得各组件初始刚度;然后将各组件初始刚度进行组装,得到外套管式节点初始刚度。通过与相关试验结果和有限元分析结果的对比研究,表明外套管式节点初始刚度的计算方法具有足够精确性,可用于节点刚性的判断和参数研究。利用EC3规范对多高层钢结构中常用的外套管式节点进行定量判定,得出其为半刚性节点的结论。For out-shell beam-column connections （OSC）, the structural detail of tube wall reinforced by steel plate is adopted. The connection was divided into some basic components and the initial stiffness of each component was obtained. Then the initial stiffness of OSC can be obtained by assembling the initial stiffness of each component. By comparison with the results of correlative experiment and finite element calculation, it is verified that the method to calculate the initial stiffness of OSC is accurate enough to be used to estimate the rigid behavior of the connection and to make parametric study. In the end based on EU3 code, the classification of OSC adopted in multi-story steel structures is determined, from which a conclusion is drawn that OSC is a semi-rigid connection.

关 键 词：外套管式节点 初始刚度 半刚性节点 理论模型 

分 类 号：TU973.257[建筑科学—结构工程]