- 摘 要
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聂建国1,田淑明1,2(1 清华大学土木工程系土木工程安全与耐久性教育部重点实验室,北京 100084;2 中冶京诚工程技术有限公司,北京 100053)
[摘要]框架-混凝土核心筒混合结构在我国已得到广泛应用,但对其水平位移限值的研究尚不完善,还存在诸多问题。通过理论分析和有限元计算,讨论了高宽比对结构变形的影响,明确了高宽比与位移限值间的相关性。通过四个算例的位移特性和安全性的比较,认为相对层间位移角和顶点位移角可以作为层间位移角的有效补充,而且当外围框架类型不同时,宜视位移指标不同给出相应的位移限值。
[关键词]框架-混凝土核心筒混合结构;高宽比;水平位移限值
中图分类号:TU375文献标识码:A文章编号:1002-848X(2012)04-0028-06
Discussions about drift limit of frame-concrete corewall hybrid structures
Nie Jianguo1, Tian Shuming1,2(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 MCC Capital Engineering & Research Incorporation Limited, Beijing 100053, China )
Abstract:Frame-concrete corewall hybrid structure is widely used in China, but research on horizontal drift limit is not fully addressed. Based on theoretical analysis and finite element analysis, influence of height-width ratio on structural deformation was discussed and the relationship between height-width ratio and drift limit was illustrated. Furthermore, drift and safety of four frame-concrete corewall hybrid structures were compared. As a result, relative inter-story drift and roof drift can act as effective supplements of inter-story total drift, and drift limit should be determined according to different drift index for structures with different peri-frame type.
Keywords:frame-concrete corewall hybrid structure; height-width ratio; horizontal drift limit
*国家自然科学基金重点项目(50438020),长江学者和创新团队发展计划资助项目(IRT00736)。
作者简介:聂建国,教授,博士生导师,Email:niejg@mail.tsinghua.edu.cn。
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