套建增层巨型框架抗震设计方法  

Research on aseismic design of outer-jacketing mega frame for storey-adding

作　　者：孙绪杰[1,2] 郑文忠[1] 李成河[2] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090 [2]黑龙江工程学院土木与建筑工程学院,哈尔滨150050

出　　处：《哈尔滨工业大学学报》2010年第12期1860-1865,共6页Journal of Harbin Institute of Technology

基　　金：教育部新世纪优秀人才支持计划资助项目(教技司[2005]290号);黑龙江省科技攻关项目(GC04A609);哈尔滨市科技攻关计划项目(2004AA9CS187);"十一五"国家科技支撑计划子课题(2006BAJ03A10-7)

摘　　要：为解决套建增层巨型框架结构在罕遇地震作用下的倒塌分析以及与施工相结合的设计方法等方面研究滞后于工程实践的问题,利用弹塑性分析程序IDARC2D分析现行抗震规范规定的I～III类场地土、第一～三地震分组、7～8度设防烈度的套建增层巨型框架的弹塑性地震反应,研究其倒塌机制.结果表明,底层巨型框架的设计是控制结构实现梁铰机制的关键.提出通过适当提高框架抗震等级的措施来避免倒塌.结合施工的实际情况,凝炼了套建增层巨型框架的施工技术措施.基于弹塑性地震分析结果提出与施工相结合的设计方法,为套建增层巨型框架结构的设计提供参考.For the reason that the research on outer-jacketing mega frame for storey-adding＇ collapse and design method that considering construction lags behind that of practice,outer-jacketing mega frames for storey-adding in Site-class I-III,design seismic group 1st-3rd,seismic fortification intensity 7-8 were analyzed and the collapse mechanism was studied by elasto-plastic analyze program IDARC2D.It reveals that the design of bottom frame is the key point to make the structure damaged with beam-hinge mechanism.Measures to avoid collapse of structure by enhance the grade suitably were put forwarded.Construction technical measures were refined according to construction practice,design method was presented based on the elasto-plastic analysis results,that provide preference for the design of outer-jacketing mega frame for storey-adding.

关 键 词：混凝土结构 巨型框架 套建增层 抗震设计 

分 类 号：TU978[建筑科学—建筑技术科学]