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（1 上?？萍拣^， 上海 200127； 2 上海建筑設(shè)計(jì)研究院有限公司， 上海 200041；3 上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心， 上海 200041）

［摘要］上海天文館球幕影院是由鋼結(jié)構(gòu)球體網(wǎng)殼和曲面混凝土薄殼組成的混合結(jié)構(gòu)。闡述了該混合結(jié)構(gòu)的特點(diǎn)和難點(diǎn)，分析了結(jié)構(gòu)的整體穩(wěn)定性、大震作用下的塑性損傷分布、關(guān)鍵連接節(jié)點(diǎn)性能等。結(jié)果表明：連接節(jié)點(diǎn)的構(gòu)造可靠，結(jié)構(gòu)整體不會(huì)發(fā)生失穩(wěn)破壞；球體網(wǎng)殼滿足大震彈性要求，混凝土殼體滿足大震不屈服要求。

［關(guān)鍵詞］上海天文館；球形網(wǎng)殼； 曲面混凝土薄殼； 塑性損傷； 節(jié)點(diǎn)性能

中圖分類號(hào)：TU318， TU393-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)03-0037-05

Mixed structural design of complex shell of the dome theater of Shanghai Planetarium

Xu Xiaohong1, Li Yansong1, Xiao Kui2,3, Zhang lianglan2,3

(1 Shanghai Science & Technology Museum, Shanghai 200127,China; 2 Shanghai Institute of Architectural Design and Research Co.,  Ltd.,  Shanghai 200041,China; 3 Shanghai Engineering Research Center of Spatial Structures, Shanghai 200041,China)

Abstract:The dome theater of Shanghai Planetarium is a mixed structure composed of a spherical steel reticulated shell and a curved concrete thin-shell structure. The structure characteristics and key design problems were introduced. The structural overall stability, plastic damage distribution under rare earthquake and key joint performance were analyzed. The calculation results indicate that the connection joints are reliable in structure details and no instability failure occurs in the whole structure. The spherical reticulated shells meet the elastic requirements of rare earthquake, and the concrete shells meet the requirement of not yielding under rare earthquake.

Keywords:Shanghai Planetarium; spherical reticulated shell; curved concrete thin-shell; plastic damage; joint performance

*上海市科學(xué)技術(shù)委員會(huì)課題《上海天文館工程建設(shè)關(guān)鍵技術(shù)研究與應(yīng)用》（15dz1207900）。

作者簡(jiǎn)介：徐曉紅，本科，教授級(jí)高級(jí)工程師，Email: xuxh@sstm.org.cn。