茌平体育馆屋盖弦支穹顶叠合拱与主体混凝土框架协同工作力学性能研究  

Study on collaborative working performance of suspend-dome with stacked arch of the roof and the main concrete frame in Chiping Gymnasium

作　　者：陈昆[1,2] 于敬海[2,3] 闫翔宇[2,3] 王亚雯[2] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学建筑设计研究院,天津300073 [3]天津市房屋建筑钢结构技术工程中心,天津300072

出　　处：《建筑结构》2014年第12期63-67,共5页Building Structure

基　　金：天津市科技支撑计划重点项目(13ZCZDSF01400);教育部高等学校博士学科点专项科研基金(20130032120024)

摘　　要：采用有限元软件分别建立了茌平体育馆屋盖弦支穹顶叠合拱单体模型、主体混凝土框架单体模型和结构协同工作整体模型,对比分析了结构在单体模型和整体模型下,屋盖弦支穹顶叠合拱和主体混凝土框架的力学性能差异。结果表明:在静力荷载作用下,采用单体模型计算屋盖结构时可以满足精度要求,主体混凝土框架柱与环梁的内力计算结果偏于安全;在地震作用下,采用两种模型计算的侧向变形与基底剪力的结果差异较明显;对地震作用是控制因素的工况应该采用整体模型进行分析,以确保抗震设计的安全性。Three models of Chiping Gymnasium, which are suspend-dome with stacked arch structure of the roof, the main concrete frame structure and the collaborative working assembly structure, were built respectively by finite element analysis software. The differences of structural performances of suspend-dome with stacked arch and the main concrete frame with partial model and integrated model were also compared. The result shows that： the calculation results of roof structure by using partial model can meet the precision requirements under static loads, the internal force of the main concrete frame column and ring beam is rather safe; the lateral displacement and base shear force obtained by two models show great difference under seismic loads; in order to ensure the safety of earthquake-resistant design, the integrated model is preferable when seismic loads are considered as controlling factors.

关 键 词：荏平体育馆 弦支穹顶叠合拱结构 总装分析 单体分析 协同工作 

分 类 号：TU931[建筑科学—结构工程] TU398