提高单跨框架结构抗震性能的几种方法  

Several Methods to Improve the Seismic Performance of Single Span Frame Structure

作　　者：闫艳伟 李晓蕾[2] YAN Yan-wei;LI Xiao-lei(China IPPR International Engineering Co.Ltd.,Beijing 100038,China;School of Civil Engineering and Architecture,Xi'an University of Technology,Xi'an 710048,China)

机构地区：[1]中元国际工程有限公司,北京100038 [2]西安理工大学土木建筑工程学院,西安710048

出　　处：《工程建设与设计》2019年第3期48-51,共4页Construction & Design for Engineering

基　　金：国家自然科学基金项目(10572107);中国博士后科学基金(2014M562523XB)

摘　　要：单跨框架结构冗余度小,在地震中很容易形成机构并发生倒塌破坏,故在设计中应增加延性,提高其抗震性能。结合实际工程,以一工业厂房附属用房中的单跨框架结构为例,对比分析了加强抗震措施、中震弹性设计与中震不屈服设计、对结构重要部位进行包络设计三种提升结构综合抗震性能的方法。结果表明,可通过提高抗震等级和抗震构造措施以及对结构重要部位进行包络设计来有效提高结构抗震性能,对关键构件进行中震抗震设计能保证其具有较好的延性,但建筑物的整体造价会有所提高。Due to the small redundancy of single span frame structure,it is easily forming mechanism and collapsed under the earthquake.Then,the seismic performance of single span frame structure should be improved by strengthening structure ductility.Combined with practical engineering,a single span frame structure in industrial workshop accessory occupancy as an example,three methods are proposed as follows:strengthen aseismic measures,elastic and non-yielding design under moderate earthquake,envelope design for the important parts of the structure.The comparative analysis was made in this paper,and results shows that improving seismic grade and seismic construction as well as envelope design for important part of the structure are affect measures for strengthening the structural seismic performance.Seismic design for key component of structure under moderate earthquake will ensure the good ductility;however,the overall cost of structure will be increased.

关 键 词：单跨框架 抗震措施 延性 性能设计 

分 类 号：TU323.5[建筑科学—结构工程] TU352