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（上海建筑設(shè)計研究院有限公司，上海 200041）
[摘要] 旋轉(zhuǎn)樓梯由于其優(yōu)美的曲線越來越廣泛地被使用，文章介紹了某五星級酒店中的旋轉(zhuǎn)樓梯設(shè)計過程，通過對樓梯內(nèi)外圈鋼梁的比選確定最優(yōu)截面，對樓梯的強(qiáng)度、穩(wěn)定、撓度進(jìn)行驗算保證靜力作用下構(gòu)件的安全，采用線性屈曲分析找出臨界荷載。由于樓梯旋轉(zhuǎn)角度較大，對樓梯的舒適度采用豎向自振和人行激勵加速度雙重驗算。文中提及的旋轉(zhuǎn)鋼樓梯的設(shè)計思路，可對類似工程提供一定的參考。
[關(guān)鍵詞] 旋轉(zhuǎn)鋼樓梯；屈曲分析；舒適度
中圖分類號： TU318.2
Design analysis of a steel spiral stair
Yu Wei
(Shanghai Institute of Architectural Design & Research, Shanghai 200041,
Abstract：Curved spiral stairs have been widely used because of their beautiful rondure. It introduces the design process of a rotating staircase in five Stars Hotel. Through comparison of different model determine the optimal section of stairs by inner and outer ring beam. Checking is given to ensure member under the static force safety of stairs by strength, stability, deflection. The linear buckling analysis is proposed to find out the critical load. Because of large rotation angle on the stairs, the stairs comfort with vertical natural and human walking acceleration double checking. The mention of rotating steel staircase design ideas can provide some references for the similar engineering.
Keywords：steel spiral stair; buckling analysis; comfort evaluation
參考文獻(xiàn)
[1] 周彬，任曉崧. 某橢圓形旋轉(zhuǎn)鋼樓梯的設(shè)計分析[J].結(jié)構(gòu)工程師，2009，25(5).
[2] 徐培福. 復(fù)雜高層建筑結(jié)構(gòu)設(shè)計[M]. 北京：中國建筑工業(yè)出版社，2005.
[3] 虞 煒，李亞明，張 堅，等. 華為上海基地多層吊樓鋼結(jié)構(gòu)設(shè)計[J].建筑結(jié)構(gòu),2009,39（S1）：419-422.
[4] WYATT T A. Design guide on the vibration of floors[M].1989.
[5] BSI. Evaluation of human exposure to vibration in buildings(1Hz to 80Hz)[J].
作者簡介：虞煒，男，工學(xué)學(xué)士，工程師，一級注冊結(jié)構(gòu)工程師,Email:yuwei@siadr.com.cn。
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