- 摘 要
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（1 華東建筑設(shè)計(jì)研究總院， 上海 200002；2上海通正鋁合金結(jié)構(gòu)工程技術(shù)有限公司， 上海 201100）
［摘要］南京牛首山佛頂宮大穹頂由于其特殊的藝術(shù)造型要求，采用鋼結(jié)構(gòu)樹狀柱作為大穹頂?shù)闹饕误w系，樹狀柱與穹頂采用鉸接節(jié)點(diǎn)連接;為確保結(jié)構(gòu)設(shè)計(jì)的安全可靠，采用ANSYS軟件對樹狀柱進(jìn)行了整體非線性穩(wěn)定分析，結(jié)果表明樹狀柱的承載能力滿足設(shè)計(jì)要求；對樹狀柱關(guān)鍵節(jié)點(diǎn)進(jìn)行了有限元模擬，結(jié)果表明節(jié)點(diǎn)設(shè)計(jì)合理有效;對計(jì)算中的模型假定、長度系數(shù)取值、荷載取值等基礎(chǔ)計(jì)算條件進(jìn)行了介紹，并對計(jì)算結(jié)果進(jìn)行了探討,論證了本項(xiàng)目的合理性及安全性。
［關(guān)鍵詞］樹狀柱支撐； 應(yīng)力計(jì)算； 非線性穩(wěn)定分析； 長細(xì)比系數(shù)； 節(jié)點(diǎn)有限元分析
中圖分類號：TU393-3文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)03-0034-06
Structural design of steel tree-shaped columns of the large dome of Nanjing Niushou Mountain Usnisa Palace
Zhang Yingzhou1, Zhang Xuefeng1, Ouyang Yuanwen2
(1 East China Architectural Design Institute, Shanghai 200002， China; 2 Shanghai Tongzheng Aluminum Alloy Structural Engineering Technology Co., Ltd., Shanghai 201100, China)
Abstract:Due to the special artistic modeling requirements of the large dome of Nanjing Niushou Mountain Usnisa Palace，the steel tree-shaped-shaped columns were adopted as the main support system of the large dome, and the tree-shaped-shaped columns and the dome are connected by hinge nodes. To ensure the safety and reliability of the structural design, ANSYS software was used to analyze the overall nonlinear stability of the tree-shaped-shaped column. The results show that the bearing capacity of the tree-shaped-shaped column meets the design requirements. Finite element simulations were performed on the key nodes of the tree-shaped-shaped column, and the results show that the node design is reasonable and effective. The basic calculation conditions such as model assumptions, length coefficient values, and load values were introduced. The calculation results were discussed, and the rationality and safety of the project were demonstrated.
Keywords:tree-shaped-shaped column brace; stress calculation; nonlinear stability analysis; slenderness coefficient; finite element analysis of joint
作者簡介：張映洲，學(xué)士，工程師，Email: wolfnoon@163.com。
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