[1]张令心,鲁若帆,朱柏洁.砖砌体房屋非线性地震反应分析方法和破坏状态指标的确定与验证[J].地震工程与工程振动,2021,41(03):001-10.[doi:10.13197/j.eeev.2021.03.1.zhanglx.001]
 ZHANG Lingxin,LU Ruofan,ZHU Baijie.Determination and verification for the nonlinear seismic response analysis method and the damage state index of brick masonry buildings[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2021,41(03):001-10.[doi:10.13197/j.eeev.2021.03.1.zhanglx.001]
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砖砌体房屋非线性地震反应分析方法和破坏状态指标的确定与验证
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《地震工程与工程振动》[ISSN:/CN:]

卷:
41
期数:
2021年03
页码:
001-10
栏目:
论文
出版日期:
2021-06-30

文章信息/Info

Title:
Determination and verification for the nonlinear seismic response analysis method and the damage state index of brick masonry buildings
作者:
张令心 鲁若帆 朱柏洁
中国地震局工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080
Author(s):
ZHANG Lingxin LU Ruofan ZHU Baijie
Institute of Engineering Mechanics, China Earthquake Administration;Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Harbin 150080, China
关键词:
砖砌体房屋非线性动力时程分析抗震性能评估层剪切模型延伸系数
Keywords:
brick masonry buildingnonlinear dynamic time-history analysisseismic performance evaluationstory shear modelductility factor
分类号:
P315.95
DOI:
10.13197/j.eeev.2021.03.1.zhanglx.001
摘要:
砖砌体房屋在历次地震中的破坏均较为严重,为了准确评估其在大震作用下的抗震性能,选择高效的结构分析方法并选取合适的破坏状态指标至关重要。首先,在仔细比较现有结构非线性分析方法的基础上,结合砖砌体结构的特点,采用了可以“考虑构造柱影响”的砖墙体三线型恢复力模型,并建立了砖砌体结构的层剪切非线性分析模型,利用基于自平衡力的弹塑性动力反应分析方法实现了砖砌体结构的非线性动力时程分析;然后,选取延伸系数作为砖砌体结构的破坏状态指标,来判别结构的破坏状态;最后,利用一个带有震害的实际算例,采用三条能充分反映该工程场地特征的地震动对其进行非线性动力时程分析,验证了文中砖墙体恢复力模型、非线性动力时程分析方法以及破坏状态指标的合理性和有效性。文中所确定的模型、方法和破坏状态指标可为大震作用下砖砌体房屋的抗震性能鉴定和评估、抗震加固以及震害分析提供方法和依据。
Abstract:
Brick masonry buildings suffered serious damage in previous earthquakes. It is important to select efficient structural analysis method and appropriate damage state index, to accurately evaluate the seismic performance of brick masonry buildings under major earthquakes. Firstly, considering features of brick masonry structures, and comparing current structural nonlinear analysis methods, trilinear restoring force models of the brick walls were built that can reflect the effects of the constructional columns, and the nonlinear story shear model of brick masonry structure was built. Meanwhile, structural nonlinear dynamic time-history analysis was carried out by the elasto-plastic dynamic response analysis method based on self-equilibrating stresses. Secondly, ductility factor was used as damage state index to judge structural damage states. Finally, focusing on a brick masonry structure in an earthquake disaster, the nonlinear dynamic time-history analysis was carried out using three ground motions which can fully reflect the characteristics of the engineering site. Based on the results, restoring force model of the brick wall, nonlinear dynamic time-history analysis method and damage state index were proved to be rational and effective. The model, method and damage state index in this paper are provided as the method and basis for appraisal and evaluation of seismic performance, for seismic hardening and for seismic damage analysis of brick masonry buildings under major earthquakes.

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备注/Memo

备注/Memo:
收稿日期:2020-11-08;改回日期:2021-02-19。
基金项目:中国地震局工程力学研究所基本科研业务费专项资助重点项目(2019A01);国家重点研发计划重点专项(2017YFC1500606);黑龙江省头雁行动计划
作者简介:张令心(1967-),女,研究员,博士,主要从事结构抗震和综合防灾研究.E-mail:lingxin_zh@126.com
通讯作者:鲁若帆(1995-),女,硕士,主要从事砌体结构地震易损性分析.E-mail:lu15546017351@163.com
更新日期/Last Update: 1900-01-01