新型玻璃组合结构及节点性能研究
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(同济大学土木工程学院,上海 200092)[摘要]提出了一种由玻璃板和拉索组成的新屋顶结构体系,其中玻璃板作为结构受力单元,只承受压力,拉索单元承受拉力。对该结构体系进行静力分析,计算表明,该结构体系是可行的,能充分发挥玻璃和索的优点。提出了在玻璃与玻璃之间的硅酮结构密封胶中设置钢垫块来传递压力的新型节点构造形式,使板元在局部边界受压时起传递压力作用,而受拉时不起作用,不仅提高了玻璃板之间的传力效率,还避免或减小了玻璃节点处的传力集中。[关键词]玻璃;索;结构;节点;单向传力方式;接触问题Behavior of new glass-steel structure and improved jointsLi Xue, Luo Yongfeng, Xu Chunli(College of Civil Engineering, Tongji University, Shanghai 200092, China)Abstract:The resistance in-plane compression of glass panel is quite large, while it can hardly bear any tension. An innovative form of dome, composed mainly of glass panels and steel cables, is proposed and analyzed. The simulation result shows that this kind of dome can make full use of the two kinds of material in the same time and the system is feasible. Several innovative joints are proposed and adopted in the dome to reduce stress concentration or force concentration when bearing in-plane compression.Keywords:glass; cable; structure; joint; load transferring mode; contact problem*“世博场馆大空间结构安全保障技术”项目资助(05DZ05812)。作者简介:黎雪,博士研究生,Email:li.xue1982@gmail.com。参考文献[1]JGJ102—2003玻璃幕墙工程技术规范[S]. 北京:中国建筑工业出版社,2003.[2]GB50009—2001建筑结构荷载规范[S]. 北京:中国建筑工业出版社,2002.[3]张芹. 建筑幕墙与采光顶设计施工手册[M]. 北京:中国建筑工业出版社,2002.[4]刘锡良. 现代空间结构[M]. 天津:天津大学出版社,2003.[5]张其林. 玻璃幕墙结构[M]. 济南:山东科学技术出版社,2006.