(1 天友建筑设计股份有限公司天津分公司,天津 300384;2 大连理工大学土木工程学院,大连 116024;3 天津城建大学土木工程学院,天津 300384;4 天津市土木建筑结构防护与加固重点实验室,天津 300384;5 天津市地震局,天津 300201)

摘要: 近几年地震震害表明,我国遭受 5 级以上地震灾害次数较多,造成几十亿元至几百亿元的经济损失.为了解乡镇农居建筑抗震性能,对天津市某区 21 个乡镇农居展开了抗震性能调查,分析乡镇农居结构类型、建造年代、建筑现状、砂浆类型、抗震构造措施等信息.对 840 栋典型的农居展开抗震性能详细分析,采用综合抗震能力指数评价方法对农居进行抗震性能鉴定.统计各类型农居的综合抗震能力指数,得出同一类型农居综合抗震指标,采用加权平均综合抗震能力指数评价该类型的抗震性能.结果表明:天津市某区土坯结构整体的抗震性能不足,且该类型结构多在 20 世纪 70 年代建造,历史久远,腐蚀破坏严重,大部分已经失去原抗震承载能力.从加权平均综合抗震能力指数上看,砖木结构在地震烈度为 8 度时,就不满足当地地震设防标准.砖混结构加权平均综合抗震能力指数较高,抗震性能表现良好,均能够满足天津市某区抗震设防要求.

关键词: 乡镇农居;抗震性能鉴定;震害预测;综合抗震能力指数

中图分类号:TU398.7 文献标志码:A 文章编号:1002-848X(2022)17-0039-06

DOI:10.19701 / j.jzjg.20201335

Comprehensive evaluation of seismic performance of farmhouse

WANG Zhiyong1,LIANG Bin2,ZHANG Hai3,4,GAO Wuping5

(1 Tenio Tianjin Architecture and Engineering Co. ,Ltd. ,Tianjin 300384,China;2 School of Civil Engineering,Dalian University of Technology,Dalian 116024,China;3 School of Civil Engineering,Tianjin Chengjian University,Tianjin 300384,China;4 Tianjin Key Laboratory of Civil Structure Protection and Reinforcement,Tianjin 300384,China;5 Earthquake Administration of Tianjin Municipality,Tianjin 300201,China)

Abstract:The earthquake damage shows that countries have suffered many earthquake disasters of magnitude 5 or higher inrecent years,which causing economic losses of several billion to tens of billions Yuan. In order to clear the seismicperformance of farmhouse,an investigation on the seismic performance of farmhouse in 21 towns in a district of Tianjin wascarried out. The information on the structure type,construction age,construction status,mortar type and seismic structuralmeasures of the farmhouse was analyzed. A detaile analysis of the seismic performance of 840 typical farmhouses wascarried out,and the seismic performance of the farmhouses was identified by the comprehensive seismic resistance indexevaluation method. The comprehensive seismic resistance index of each type of farmhouse was counted,and thecomprehensive seismic resistance index of the same type of farmhouse was obtained,and the weighted averagecomprehensive seismic resistance index was used to evaluate the seismic performance of this type. The results show that theseismic performance of the adobe structures in a district of Tianjin is deficiency,which most of these structures were built inthe 1970s with a long history and were seriously corroded,and most of them have lost their original seismic bearingcapacity. From the weighted average comprehensive seismic resistance index,when the earthquake intensity is 8 degrees,the brick-wood structure does not meet the local seismic fortification standards. The weighted average comprehensive seismicresistance index of the brick-concrete structure is highest than other two types of farmhouses,which show the seismicperformance is good and can meet the seismic fortification requirements of a district in Tianjin.

Keywords:farmhouse;seismic performance appraisal;earthquake damage prediction;comprehensive seismic resistanceindex

∗国家自然科学基金(41772123).

第一作者:王志永,硕士,高级工程师,主要从事结构抗震设计研究,Email:wangzhiyong@ tenio. com.

[引用本文] 王志永,梁斌,张海,等. 乡镇农居抗震性能综合评价[ J]. 建筑结构,2022,52(17):39-44. WANGZhiyong,LIANG Bin,ZHANG Hai,et al. Comprehensive evaluation of seismic performance of farmhouse [ J]. BuildingStructure,2022,52(17):39-44.