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优秀历史建筑抗震性能鉴定分析
冷超群1,刘祖华2,金立赞1
摘 要

(1 中冶建筑研究总院(上海)有限公司, 上海  200433; 2 同济大学土木工程学院, 上海 200092)

[摘要]对于建设年代久远、建设初期工艺低下、结构体系复杂的优秀历史建筑,从技术上对其进行分析、从工艺上对其进行加固一直是个难题。以优秀历史建筑大光明电影院为例,对其进行抗震性能分析,并对其在多遇、罕遇地震作用下进入弹塑性状态时的破坏过程进行模拟,找出结构薄弱部位并对其进行适当的加固。结果表明,该类结构在罕遇地震作用下,一层大空间存在结构薄弱部位,容易进入弹塑性状态,并首先破坏,给房屋安全造成很大影响,可采取增加该部位结构刚度的措施对其进行加固。

[关键词]优秀历史建筑; 检测鉴定; 抗震性能; 静力弹塑性分析; 动力弹塑性时程分析

中图分类号:TU242-2文献标识码:A文章编号:1002-848X(2017)09-0045-05

 

Seismic performance identification analysis of remarkable historic buildings

Leng Chaoqun1, Liu Zuhua2, Jin Lizan1

(1 Central Research Institute of Building and Construction(Shanghai) Co., Ltd., MCC Group, Shanghai 200433, China; 

2 Department of Civil Engineering, Tongji University, Shanghai 200092, China)

Abstract:It is a problem to technically analyse and reinforce remarkable historic buildings which was built for a long time, low initial construction technology and complex structural system. For instance, remarkable historical building of the Grand Cinema was taken seismic performance analysis. The failure process of the structure in elastic-plastic state under frequent and rare earthquakes were simulated respectively to find out the weak parts for appropriate reinforcement. The results show that, under the influence of rare earthquake, the first layer large space of the structure has weak structural parts, and it is easy to enter a elastic-plastic state and is destroyed at first. This leads to great impact on building safety and the weak part can be reinforced by increasing the structural stiffness.

Keywords:remarkable historic building;  inspection and appraisal; seismic performance; static elastic-plastic analysis; dynamic elastic-plastic time-history analysis

 

作者简介:冷超群,硕士,高级工程师,Email:lengchaoqun@yj.org.cn。

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