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茌平體育館屋蓋弦支穹頂疊合拱與主體混凝土框架協(xié)同工作力學性能研究*
陳昆1,2,于敬海2,3,閆翔宇2,3,王亞雯2
摘 要

 

1 天津大學建筑工程學院, 天津 300072; 2 天津大學建筑設計研究院, 天津 300073;3 天津市房屋建筑鋼結構技術工程中心, 天津 300072

摘要]采用有限元軟件分別建立了茌平體育館屋蓋弦支穹頂疊合拱單體模型、主體混凝土框架單體模型和結構協(xié)同工作整體模型,對比分析了結構在單體模型和整體模型下,屋蓋弦支穹頂疊合拱和主體混凝土框架的力學性能差異。結果表明:在靜力荷載作用下,采用單體模型計算屋蓋結構時可以滿足精度要求,主體混凝土框架柱與環(huán)梁的內(nèi)力計算結果偏于安全;在地震作用下,采用兩種模型計算的側向變形與基底剪力的結果差異較明顯;對地震作用是控制因素的工況應該采用整體模型進行分析,以確??拐鹪O計的安全性。

關鍵詞]荏平體育館; 弦支穹頂疊合拱結構; 總裝分析; 單體分析; 協(xié)同工作

中圖分類號:TU93+1,TU398      文獻標識碼:A      文章編號:1002-848X(2014)12-0063-05

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

Chen Kun1,2, Yu Jinghai2,3, Yan Xiangyu2,3, Wang Yawen2

 (1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China; 3 Tianjin Steel Building Structure Engineering Center, Tianjin 300072, China)

Abstract: 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.

Keywords: Chiping Gymnasium; suspend-dome with stacked arch structure; assembled modeling analysis; isolated modeling analysis; collaborative working

*天津市科技支撐計劃重點項目(13ZCZDSF01400),教育部高等學校博士學科點專項科研基金(20130032120024)。

通訊作者:閆翔宇,博士,高級工程師,Emailxy_yan2005@163.com

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