武威市游泳馆结构设计
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姜余洋（中联筑境建筑设计有限公司， 杭州 310014）［摘要］武威市游泳馆采用框架-排架结构，屋面采用空间钢桁架，存在长宽比较大、扭转偏大、楼板不连续、各处刚度差异较大等不规则情况。通过设置屈曲约束支撑、屋面水平钢支撑等措施加强了结构整体性和抗扭能力；通过控制基底零应力区，保证排架的抗倾覆能力；根据性能设计提出抗震性能目标，采用多种有限元软件进行计算分析，保证了结构的抗震性能。［关键词］抗震性能化设计； 屈曲约束支撑； 零应力区； 静力弹塑性分析； 超长结构中图分类号：TU318，TU393.3 文献标识码：A 文章编号：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作者简介：姜余洋，一级注册结构师，工程师，Email:jyycc2003@163.com。参考文献［1］JGJ 3—2010 高层建筑混凝土结构技术规程［S］. 北京：中国建筑工业出版社，2012.［2］GB 50007—2011 建筑地基基础设计规范［S］. 北京：中国建筑工业出版社，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 建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.［6］GB 50009—2012 建筑结构荷载规范［S］. 北京：中国建筑工业出版社，2012.
