- 摘 要
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（1 上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心， 上海 200041； 2 上?？萍拣^， 上海 200127）
［摘要］上海天文館結(jié)構(gòu)形態(tài)復(fù)雜，結(jié)構(gòu)材料種類多，由多種結(jié)構(gòu)體系組成。其中倒轉(zhuǎn)穹頂為一“碗形”鋁合金單層網(wǎng)殼結(jié)構(gòu)，下部支承于鋼筋混凝土環(huán)梁上。由于混凝土環(huán)梁跨度大，其變形對鋁合金結(jié)構(gòu)影響較大，結(jié)構(gòu)設(shè)計時，采取整體建模的方式，并考慮支座變形對鋁合金結(jié)構(gòu)的影響。對于結(jié)構(gòu)開大洞處，采用鋼構(gòu)件來替換鋁合金構(gòu)件進行加強。計算結(jié)果表明，結(jié)構(gòu)性能可靠，滿足大震不屈服要求。
［關(guān)鍵詞］上海天文館； 倒轉(zhuǎn)穹頂； 鋁合金結(jié)構(gòu)； 單層網(wǎng)殼； 結(jié)構(gòu)設(shè)計
中圖分類號：TU318, TU393-3文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)14-0030-04
Structural design on inverted dome aluminum alloy latticed shell of Shanghai Planetarium
Li Yaming1, Jia Haitao2, Jia Shuizhong1, Zhang Lianglan1, Gao Jiang2
(1 Shanghai Institute of Architectural Design and Research， Shanghai 200041, China; 2 Shanghai Science & Technology Museum, Shanghai 200127, China)
Abstract:Shanghai Planetarium is characterized by its complex structure, many kinds of structural materials, and a variety of structural systems. The inverted dome is a "bowl-shaped" aluminum alloy single-layer latticed shell structure, and the lower part is supported on reinforced concrete ring beams. Because of the large span of the concrete ring beam, its deformation has a great influence on the structure of aluminum alloy. During the design of the structure, the whole modeling method was adopted, and the influence of the deformation of the support on the structure of the aluminum alloy was considered. For large structural holes, steel members were used to replace aluminum alloy members. The results show that the structure is reliable and can meet the non-yielding requirements under rare earthquake.
Keywords:Shanghai Planetarium; inverted dome; aluminum alloy structure; single-layer latticed shell; structural design
*上海市科學(xué)技術(shù)委員會課題《上海天文館工程建設(shè)關(guān)鍵技術(shù)研究與應(yīng)用》（15dz1207900）。
作者簡介：李亞明，學(xué)士，教授級高級工程師，Email:liym@siadr.com.cn。
