[1]陆吉赟,顾泺怡,石树中.浙江城区典型砌体结构抗震能力分析[J].华南地震,2025,(02):117-124.[doi:10.13512/j.hndz.2025.02.15]
 LU Jiyun,GU Luoyi,SHI Shuzhong.Seismic Capacity Analysis of Typical Masonry Structures in Urban Area of Zhejiang[J].,2025,(02):117-124.[doi:10.13512/j.hndz.2025.02.15]
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浙江城区典型砌体结构抗震能力分析()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年02期
页码:
117-124
栏目:
土木工程防震减灾
出版日期:
2025-06-30

文章信息/Info

Title:
Seismic Capacity Analysis of Typical Masonry Structures in Urban Area of Zhejiang
文章编号:
1001-8662(2025)02-0117-08
作者:
陆吉赟顾泺怡石树中
浙江省地震局,杭州 310013
Author(s):
LU JiyunGU LuoyiSHI Shuzhong
Zhejiang Earthquake Agency , Hangzhou,310013, China
关键词:
砌体结构抗震能力时程分析法层间位移角
Keywords:
Masonry structureSeismic capacityTime history analysis methodInter-story displacement angle
分类号:
TU364;TU352.11
DOI:
10.13512/j.hndz.2025.02.15
文献标志码:
A
摘要:
为研究浙江城区广泛分布的老旧砌体房屋的抗震能力,以不满足现行建筑抗震设计规范要求的一栋典型多层砌体房屋为对象,分别采用抗震能力指数法和时程分析法对其进行抗震能力分析。抗震能力指数法的判别结果表明,该砌体结构中间楼层的平均抗震能力指数值相对较低,可初步判断为房屋的抗震薄弱环节。时程分析法的结果表明,在对应抗震设防烈度7度(0.10g)小震、中震、大震的作用下,该砌体结构各楼层层间位移角的较大值主要出现在第二层(X向)。通过对应三种设计基本地震加速度,选取了5条较为符合工程场地特征的地震加速度时程进行结构数值模拟分析,得出该楼层层间位移角的均值分别为1/1356、1/408、1/230,依据建筑结构的震害等级划分标准,其破坏状态依次为轻微破坏、中等破坏和严重破坏。两种方法的分析结果较为吻合,初步判定了该典型砌体结构房屋的抗震能力水平。
Abstract:
In order to study the seismic capacity of old masonry buildings widely distributed in Zhejiang urban area, this paper takes a typical multi-story masonry building which does not meet the requirements of the current seismic design code as the object,and uses the seismic capacity index method and time history analysis method to analyze its seismic capacity. The results of the seismic capacity index method show that the average seismic capacity index of the middle floors of the masonry structure is relatively low,which can be preliminarily judged as the seismic weak link of the building. The results of time history analysis show that under the action of small earthquake, medium earthquake and large earthquake with seismic fortification intensity of 7 degrees(0.10 g), the highest inter-story displacement angle occurs mainly on the second floor(in the X direction). Based on the three design seismic accelerations, five seismic acceleration time histories that meet the characteristics of the engineering site are selected for structural numerical simulation analysis. It is concluded that the average inter-story displacement angles of the building are 1/1356,1/408 and 1/230,respectively. According to the classification of earthquake damage to buildings and special structures,the damage state of the masonry structure is slight damage, medium damage and serious damage. The analysis results of the two methods are in good agreement, and the seismic capacity level of the typical masonry structure is preliminarily determined.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2024-04-23
基金项目:浙江省地震局局科技项目(2022zjj04);浙江省重点研发计划项目(2018C03045)联合资助。
作者简介:陆吉赟(1988-),男,工程师,硕士,主要从事地震工程及地震灾害风险评估等工作。E-mail:822651938@qq.com
更新日期/Last Update: 2025-06-30