天津中医药大学新建体育馆屋盖弦支穹顶结构设计*
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(1 天津大学建筑设计研究院，天津 300073； 2 天津市房屋建筑钢结构技术工程中心，天津 300072； 3 天津大学建筑工程学院，天津 300072)
［摘要］结合天津中医药大学新建体育馆的建筑造型和使用功能，针对屋面形状、支承点选择、曲屋盖结构形式、外装饰部分钢结构4个方面进行了方案比选，确定屋盖采用弦支穹顶结构，与外桁架协同作用构成整体。利用MIDAS/Gen 800软件对结构进行了建模计算，在各种荷载工况及组合下对结构进行了分析，得到了结构的静动力响应。考虑全跨活载和半跨活载，利用ABAQUS软件对结构在几何、材料双重非线性下进行了计算分析，得到了结构稳定性能。计算结果表明，结构各个指标均满足规范要求。［关键词］天津中医药大学新建体育馆; 弦支穹顶; 稳定性能; 双重非线性中图分类号：TU393.3，TU318 文献标识码：A 文章编号：1002-848X(2015)16-0001-05
Structural design of suspendome structure roof of new gymnasium of Tianjin University of Traditional Chinese MedicineYu Jinghai1,2, Wang Zhengkai3, Yan Xiangyu1，2, Ding Yongjun1, He Caiyun1, Yu Yong1(1 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 2 Tianjin Steel Building Structure Engineering Center, Tianjin 300072, China; 3 School of Civil Engineering, Tianjin University, Tianjin 300072, China)Abstract: Considering the architectural shape and service function of new gymnasium of Tianjin University of Traditional Chinese Medicine, the structural schemes were compared and selected in four aspects, including the roof shape, the selection of bearing point, the structural form of curved roof and the steel structure of the outer decoration part. The suspendome structure was chosen, interacting with the external truss to constitute the whole structure. By MIDAS/Gen 800 software, the model of the structure was established. Under various load cases and combinations, analysis of the structure was carried out and the static and dynamic responses of the structure were obtained. Using ABAQUS software, calculation and analysis were made for dual nonlinear of material and geometry to obtain the structure stability under full span live load and half span live load. The calculation results show that each index can meet the requirement of specifications.Keywords: new gymnasium of Tianjin University of Traditional Chinese Medicine; suspendome; stability; dual nonlinear
