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(華東建筑設(shè)計(jì)研究總院, 上海 200002)
[摘要]南京牛首山文化旅游區(qū)佛頂宮大穹頂采用單層鋁合金網(wǎng)殼結(jié)構(gòu)體系,由于該結(jié)構(gòu)體型復(fù)雜,為大跨空間自由曲面,在設(shè)計(jì)規(guī)范中無相似體型的建筑可供參考,因此對其進(jìn)行了風(fēng)洞試驗(yàn)及數(shù)值模擬分析,研究該類結(jié)構(gòu)的風(fēng)荷載特性。詳細(xì)介紹了風(fēng)洞試驗(yàn)的基本模擬條件,基本風(fēng)壓、體型系數(shù)、風(fēng)振系數(shù)的計(jì)算方法和選取依據(jù),以及最終設(shè)計(jì)用風(fēng)壓的計(jì)算結(jié)果。通過對比分析可知,風(fēng)洞試驗(yàn)與數(shù)值模擬兩種方法的結(jié)果吻合良好,較好地相互驗(yàn)證了上述兩種方法的準(zhǔn)確性,對類似工程的風(fēng)荷載設(shè)計(jì)有一定的借鑒意義。
[關(guān)鍵詞]南京牛首山文化旅游區(qū)佛頂宮; 大穹頂; 風(fēng)洞試驗(yàn); 數(shù)值模擬; 風(fēng)荷載取值
中圖分類號:TU395文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2018)14-0014-05
Study on wind load characteristics of large-dome and large-span spatial free-surface roof of Fo Ding Palace in Nanjing Niushoushan Cultural and Tourism Zone
Zhang Xuefeng, Cui Jiachun, Zhang Yingzhou
(East China Architectural Design Institute, Shanghai 200002, China)
Abstract:The large dome of Fo Ding Palace in Nanjing Niushoushan Cultural and Tourism Zone adopts single layer aluminum alloy latticed shell structural system. It has complex shape and large-span spatial free-surface roof, and there is no similar building with similar size in the design codes for reference. Therefore, wind tunnel test and numerical simulation analysis were carried out to study the wind load characteristics of the structure. The basic simulation conditions, basic wind pressure, shape coefficient, calculation method and selection basis of the wind vibration coefficient of the wind tunnel test were introduced in detail as well as the calculation results of the wind pressure in the final design. The comparison and analysis of the calculated results show that the results of the wind tunnel test and the numerical simulation are in good agreement, and the accuracy of the above two methods was verified well. It has certain references for the wind load design of similar projects.
Keywords:Fo Ding Palace of Nanjing Niushoushan Cultural Tourism Zone; large dome; wind tunnel test; numerical simulation; wind load value
作者簡介:張雪峰,學(xué)士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email:zxfsuzhou@163.com。
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