世博轴阳光谷单层网壳栓接节点刚度简化计算  

Simplified Stiffness Formula of Bolt Connection Joint in Single-layer Shells of Sun Valley in Expo Axis

作　　者：张皓涵[1] 张其林[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《施工技术》2009年第8期28-30,共3页Construction Technology

基　　金：上海市科委资助项目(08dz0580303)

摘　　要：上海世博会世博轴阳光谷采用自由形态设计理念,是一种采用栓接节点的网壳结构。以上海世博会世博轴阳光谷钢结构工程为背景,针对自由形态单层壳体中的栓接节点,提出了弯矩-转角(M-θ)曲线形式和刚度简化计算公式。将简化计算结果与有限元精细模型对比,证明刚度简化公式能够较好地表述栓接节点的荷载-位移关系,特别是能准确地确定节点的初始刚度。该方法简单、可靠,很好地满足了结构设计计算的要求。Sun Valley of Expo Axis applies free-form design idea, which is reticulated shell structure with bolt connection joint. Taking the Sun Valley steel structure of Expo Axis as background, based on bolt connection joint of free-form single-layer shell, the curve style of moment-angte（ M- θ） and simplified stiffness formula are introduced in detail. Besides, through comparison of simplified calculation results and finite dement method results, it is proved that simplified stiffness formtda can accurately indicate the relationship between load and displacement, especially for initial stiffness of joint. This method is simple and reliable, and can meet structural design requirements.

关 键 词：上海世博会 世博轴 阳光谷 自由形态壳体 栓接节点 简化公式 

分 类 号：TU311.4[建筑科学—结构工程]