武威市游泳館結構設計
姜余洋
- 摘 要
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姜余洋（中聯(lián)筑境建筑設計有限公司， 杭州 310014）［摘要］武威市游泳館采用框架-排架結構，屋面采用空間鋼桁架，存在長寬比較大、扭轉(zhuǎn)偏大、樓板不連續(xù)、各處剛度差異較大等不規(guī)則情況。通過設置屈曲約束支撐、屋面水平鋼支撐等措施加強了結構整體性和抗扭能力；通過控制基底零應力區(qū)，保證排架的抗傾覆能力；根據(jù)性能設計提出抗震性能目標，采用多種有限元軟件進行計算分析，保證了結構的抗震性能。［關鍵詞］抗震性能化設計； 屈曲約束支撐； 零應力區(qū)； 靜力彈塑性分析； 超長結構中圖分類號：TU318，TU393.3 文獻標識碼：A 文章編號：1002-848X(2013)18-0025-05Structural design of Wuwei NatatoriumJiang Yuyang（China United Zhujing Architecture Design Co., Ltd., Hangzhou 310014, China）Abstract: Frame-bent structure with spatial steel truss roof is adopted in Wuwei Natatorium. It is an irregular structure with large length-width ratio, large torsional effects, discontinuous floors, and unevenly distributed stiffness. To strengthen the integrity and anti-torsion capacity of the structure, buckling restrained braces and horizontal steel braces on roof were set. Overturning stability was ensured by controlling the zero stress areas. Seismic performance objectives were proposed according to performance-based design. The structure was analyzed by several FEM analysis programs to ensure the seismic safety.Keywords: performance-based seismic design; buckling restrained brace; zero stress area; static elastic-plastic analysis; super-long structure作者簡介：姜余洋，一級注冊結構師，工程師，Email:jyycc2003@163.com。參考文獻［1］JGJ 3—2010 高層建筑混凝土結構技術規(guī)程［S］. 北京：中國建筑工業(yè)出版社，2012.［2］GB 50007—2011 建筑地基基礎設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2012.［3］ATC 40 Seismic evaluation and retrofit of concrete buildings［S］. Los Angeles：Califonia Seismic Safety Commission，1996.［4］FEMA 273，FEMA 274，FEMA 356. NEHRP guidelines for the seismic rehabilitation of buildings ［S］. Washington D.C.：Federal Emergency Management Agency，1996.［5］GB 50011—2010 建筑抗震設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2010.［6］GB 50009—2012 建筑結構荷載規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2012.
