摘要
针对新旧规范设计的底框结构抗震性能不同的问题,采用ABAQUS有限元数值模拟方法,以某城镇一栋4层底框砌体结构为原型,分别按新旧规范进行抗震设计并建立有限元分析模型,进行了动力特性分析以及不同地震动幅值作用下的弹塑性时程分析.结果表明:按GBJ11-89规范设计的底框砌体结构大震下破坏主要集中在底层框架;而按GB50011-2010规范设计的结构大震下破坏主要集中在底层框架和过渡砌体层.
Aiming at the problem that the seismic performance of masonry structure with bottom frame designed with the new and old codes is different,a numerical simulation method using ABAQUS finite element software was adopted.A four-story masonry structure with bottom frame was taken as the prototype,and the seismic design was conducted,according to the new and oldcodes,respectively.Finite element analysis models were established,and the dynamic characteristic analysis and the elastoplastic time-history analysis under the atction of different peak amplitudes of ground motion were performed.The results show that the failure of masonry structure with bottom frame designed according to the GBJ11-89 code is mainly concentrated in the lower frame under severe earthquake.While the failure of masonry structure designed according to the GB50011-2010 code under severe earthquake is mainly concentrated in the bottom frame and transitional masonry layer.
作者
张令心
孔建辉
ZHANG Ling-xin;KONG Jian-hui(Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics of China Earthquake Administration,Harbin 150080,China)
出处
《沈阳工业大学学报》
EI
CAS
北大核心
2021年第2期220-227,共8页
Journal of Shenyang University of Technology
基金
黑龙江省应用技术研究与开发计划项目(GX16C007)
中国地震局工程力学研究所基本科研业务费专项资助项目(2017QJGJ08).
关键词
底框砌体结构
抗震性能
数值模拟
抗震设计
动力特性分析
弹塑性时程分析
底部框架层
过渡砌体层
masonry structure with botttom frame
seismic performance
numerical simulation
seismic design
dynamic characteristic analysis
elastoplastic time-history analysis
bottom frame layer
transitional masonry layer
