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（天津大學(xué)建筑工程學(xué)院，天津 300072）
［摘要］分析了茌平體育中心體育館工程的建筑造型，根據(jù)屋蓋造型提出了四種結(jié)構(gòu)體系并進(jìn)行了初步的對(duì)比分析，確定出了各方面性能較好的弦支穹頂結(jié)構(gòu)體系作為屋蓋結(jié)構(gòu)體系，采用三維建模技術(shù)得到了鋼拱的空間曲線。結(jié)合建筑使用功能和結(jié)構(gòu)受力的要求，分別調(diào)整了弦支穹頂?shù)慕Y(jié)構(gòu)布置并局部修改了建筑造型，進(jìn)而提出了本工程采用的大跨度弦支穹頂疊合拱結(jié)構(gòu)體系。采用有限元軟件對(duì)這一新型結(jié)構(gòu)體系在各種荷載工況和組合下進(jìn)行了靜力分析以及模態(tài)分析，得到了結(jié)構(gòu)的受力、變形和振型特點(diǎn)，為工程的設(shè)計(jì)和施工提供了參考。
［關(guān)鍵詞］弦支穹頂；疊合拱；體育館；建筑造型；大跨度
Largespan hybrid structure of suspendome with stacked arch in Chiping Gymnasium
Chen Zhihua, Yan Xiangyu, Liu Hongbo, Yu Jinghai(Civil Engineering Department, Tianjin University, Tianjin 300072, China)
Abstract:Architectural modeling of Chiping Gymnasium in Chiping Sports Center was summarized. According to the architectural configuration, four structural systems were put forward and analyzed, and then the suspendome was adopted as the roof structural system. With three-dimension modeling technique, the spatial curved arch was got. Considering the mutual effect of architecture and structure, the roof structural system was adjusted as well as local architectural modeling. And then the large-span suspendome with stacked arch was put forward. With FEM software, new type structural system was analyzed under different load case and the feature of bearing, deformation and mode were attained. And it can benefit to the design and construction of practical projects.
Keywords:suspendome; stacked arch; gymnasium; architectural modeling; large-span
*國(guó)家自然科學(xué)基金項(xiàng)目（50778122）；教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃（NCET-06-0228）。
作者簡(jiǎn)介：陳志華，教授，博導(dǎo)，Email:zhchen@tju.edu.cn。
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