某医院辅诊楼的加层改造设计
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(北京华特建筑设计顾问有限责任公司,北京 100044)[摘要]介绍了某三等甲级医院辅诊楼的加层改造设计过程中,在方案、计算、构造、施工等多方面遇到的问题及解决方法。通过增设钢筋混凝土支撑和加固原有剪力墙的方式,解决原有结构因剪力墙设置不当造成的地震作用下扭转超限问题。简述了对此种类型的钢\|混凝土混合结构采用多种计算模型和阻尼比进行的分析比较。针对加固改造工程中应注意的设计和施工方面的问题提出建议,供类似工程设计时借鉴参考。[关键词] 加层;粘钢加固;阻尼比;钢\|混凝土混合结构中图分类号:TU318, TU375.05文献标识码:A文章编号:1002-848X(2011)08-0054-05Structural adding stories and reconstruction design of the outpatient building in a hospitalCui Xueyu, Sun Xiaoyan(Beijing Huate Architectural Design & Consulting Co., Ltd., Beijing 100044, China)Abstract:In the structural adding stories and reconstruction design of the outpatient building in a three-tertiary hospital, problems and solutions about plan, calculation, structure and construction were introduced. Because most shear walls in existing structure are placed on incorrect position, so the twist factors overstepped the limit of code under the seismic function. The measures of adding reinforced concrete bracing between columns and thickening the shear wall were adopted to solve the problem. Due to the particularity of this steel-concrete mixed structure, some computation modules and damp ratio were analyzed to find out the optimized result. Some suggestions were put forward about the design and the construction, as the reference of the similar project.Keywords:adding stories; strengthening with externally bonded steel; damp ratio; steel-concrete mixed structure作者简介:崔学宇,高级工程师,一级注册结构工程师,Email:cuixueyu@tom.com。参考文献[1]GB50011—2001建筑抗震设计规范 [S].2008年版. 北京:中国建筑工业出版社,2008.[2]JGJ116—2009建筑抗震加固技术规程 [S]. 北京:中国建筑工业出版社,2009.[3]GB50367—2006混凝土结构加固设计规范 [S]. 北京:中国建筑工业出版社,2006.[4]田慧,王依群. 混凝土房屋钢结构加层抗震分析 [J]. 天津建设科技,2009(2):23\|25.[5]08SG311—2混凝土结构加固构造 [S]. 北京:中国建筑标准设计研究院,2008.[6]李国胜. 建筑结构裂缝及加层加固疑难问题的处理 [M]. 北京:中国建筑工业出版社,2006.[7]GB50017—2003钢结构设计规范 [S]. 北京:中国计划出版社,2003.