- 摘 要
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（1上海師范大學(xué)建筑工程學(xué)院， 上海 200234； 2 上海建筑設(shè)計研究院有限公司， 上海 200041； 3 悉地國際(深圳)設(shè)計顧問有限公司， 上海 200433）
［摘要］樂清體育中心體育館屋蓋體系采用新穎的剛性屋面索桁結(jié)構(gòu)，該雜交空間結(jié)構(gòu)由剛性單層網(wǎng)格殼體和柔性空間索桁體系組成，可稱之為索桁式弦支結(jié)構(gòu)。單層網(wǎng)格殼體矢跨比約為1/21，為改善結(jié)構(gòu)性能，其幾何經(jīng)找形分析確定；柔性空間索桁體系經(jīng)形態(tài)分析確定幾何構(gòu)形和預(yù)應(yīng)力分布。結(jié)構(gòu)計算時考慮幾何非線性的影響，對所有組合工況均進行計算，而非僅計算若干單工況再進行效應(yīng)組合。動力特性分析以及穩(wěn)定性分析表明，結(jié)構(gòu)剛度分布合理，承載力儲備較高，桿件與節(jié)點設(shè)計滿足規(guī)范要求。
［關(guān)鍵詞］雜交空間結(jié)構(gòu)； 剛性單層網(wǎng)格殼體； 柔性空間索桁體系； 索桁式弦支結(jié)構(gòu)； 幾何非線性； 荷載組合
中圖分類號：TU318文獻標識碼：A文章編號：1002-848X(2017)11-0082-05
Structural design and analysis of suspend system with cable-truss in the Gymnasium of Yueqing Sports Center
Li Zhiqiang1,2, Zhang Zhihong1, Yu Weijiang3
（1 College of Civil Engineering， Shanghai Normal University, Shanghai 200234, China;
2 Institute of Shanghai Architectural Design and Research Co., Ltd., Shanghai 200041, China; 3 CCDI (Shenzhen) Design Group, Shanghai 200433, China）
Abstract:A novel cable-truss structure with rigid roof system is adopted in the roof structure of Gymnasium of Yueqing Sports Center. This hybrid spatial structure was composed of rigid single-layer latticed shell and flexible spatial cable-truss system, so it is regarded as suspended system with cable-truss. The span ratio of single-layer latticed shell is about 1/21. In order to improve the structural performance, geometry analysis was carried out to the rigid shell. The geometric configuration and the pretension force distribution of the flexible system were determined by morphology analysis. Considering the geometric nonlinear effects, all load combinations were calculated, rather than combining the effects of only several single load cases. Dynamic performance analysis and stability analysis show that the structural stiffness distribution is reasonable and the bearing capacity is sufficient. Members and joints design can also meet the specification′s requirements.
Keywords:hybrid spatial structure; rigid single-layer latticed shell; flexible spatial cable-truss; suspended system with cable-truss; geometry nonlinear effect; load combination
*上海市自然科學(xué)基金（13ZR1430500），上海市教委科研創(chuàng)新項目（重點）（14ZZ129），上海市科委部分地方院校能力建設(shè)項目（14200503000）。
通訊作者：張志宏，博士，研究員， Email: zzh@shnu.edu.cn。
