乡镇农居抗震性能综合评价
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
尊敬的用户，本篇文章需要2元，点击支付交费后阅读
限时优惠福利：领取VIP会员
全年期刊、VIP视频免费!
全年期刊、VIP视频免费!
参考文献[1] 姚新强，孙柏涛，陈宇坤，等.我国农居抗震能力研究现状[J].建筑结构，2017,47(S1):578-582.
[2] POLAT G,RANDOLPH L.The earthquake resistance of traditional timber and masonry dwellings in Turkey [C]//13th World Conference on Earthquake Engineering.Vancouver B C,2004.
[3] GÜÇHAN N Ş.Observations on earthquake resistance of traditional timber-framed structures in Turkey[J].Building and Environment,2007,42(2):840-851.
[4] 姚新强，孙柏涛，陈宇坤，等.天津农居抗震性能调查与分析[J].建筑结构，2019,49(16):108-111.
[5] 姚新强，孙柏涛，刘芳，等.华北某地区砖木结构农居基于模态测试的抗震能力研究[J].地震工程与工程振动，2020,40(4):164-173.
[6] YAO X,LIANG B,SUN B,et al.Integrated disaster matrix and vulnerability index analyze the seismic performance of typical structures in rural villages in historical earthquakes[J].Advances in Structural Engineering,2022.
[7] 徐国栋，方伟华，史培军，等.汶川地震损失快速评估[J].地震工程与工程振动，2008,28(6):74-83.
[8] 任静，杨理臣，张云芝，等.2021年5月22日青海玛多M_S 7.4地震灾害损失快速评估分析[J].地震地磁观测与研究，2022,43(2):27-37.
[9] 梁斌，张海，姚新强，等.传统农居砌体抗剪性能试验研究[J].地震工程学报，2020,42(4):856-861,947.
[10] 建筑抗震鉴定标准：GB 50023—2009[S].北京：中国建筑工业出版社，2009.
[11] 姚新强.天津农居易损性与抗震能力分布研究[D].哈尔滨：中国地震局工程力学研究所，2016.
[12] 中国地震动参数区划图：GB 18306—2015[S].北京：中国标准出版社，2015.
[2] POLAT G,RANDOLPH L.The earthquake resistance of traditional timber and masonry dwellings in Turkey [C]//13th World Conference on Earthquake Engineering.Vancouver B C,2004.
[3] GÜÇHAN N Ş.Observations on earthquake resistance of traditional timber-framed structures in Turkey[J].Building and Environment,2007,42(2):840-851.
[4] 姚新强，孙柏涛，陈宇坤，等.天津农居抗震性能调查与分析[J].建筑结构，2019,49(16):108-111.
[5] 姚新强，孙柏涛，刘芳，等.华北某地区砖木结构农居基于模态测试的抗震能力研究[J].地震工程与工程振动，2020,40(4):164-173.
[6] YAO X,LIANG B,SUN B,et al.Integrated disaster matrix and vulnerability index analyze the seismic performance of typical structures in rural villages in historical earthquakes[J].Advances in Structural Engineering,2022.
[7] 徐国栋，方伟华，史培军，等.汶川地震损失快速评估[J].地震工程与工程振动，2008,28(6):74-83.
[8] 任静，杨理臣，张云芝，等.2021年5月22日青海玛多M_S 7.4地震灾害损失快速评估分析[J].地震地磁观测与研究，2022,43(2):27-37.
[9] 梁斌，张海，姚新强，等.传统农居砌体抗剪性能试验研究[J].地震工程学报，2020,42(4):856-861,947.
[10] 建筑抗震鉴定标准：GB 50023—2009[S].北京：中国建筑工业出版社，2009.
[11] 姚新强.天津农居易损性与抗震能力分布研究[D].哈尔滨：中国地震局工程力学研究所，2016.
[12] 中国地震动参数区划图：GB 18306—2015[S].北京：中国标准出版社，2015.
Comprehensive evaluation of seismic performance of farmhouse
Abstract: The earthquake damage shows that countries have suffered many earthquake disasters of magnitude 5 or higher in recent years, which causing economic losses of several billion to tens of billions Yuan. In order to clear the seismic performance of farmhouse, an investigation on the seismic performance of farmhouse in 21 towns in a district of Tianjin was carried out. The information on the structure type, construction age, construction status, mortar type and seismic structural measures of the farmhouse was analyzed. A detaile analysis of the seismic performance of 840 typical farmhouses was carried out, and the seismic performance of the farmhouses was identified by the comprehensive seismic resistance index evaluation method. The comprehensive seismic resistance index of each type of farmhouse was counted, and the comprehensive seismic resistance index of the same type of farmhouse was obtained, and the weighted average comprehensive seismic resistance index was used to evaluate the seismic performance of this type. The results show that the seismic performance of the adobe structures in a district of Tianjin is deficiency, which most of these structures were built in the 1970 s with a long history and were seriously corroded, and most of them have lost their original seismic bearing capacity. 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 seismic resistance index of the brick-concrete structure is highest than other two types of farmhouses, which show the seismic performance is good and can meet the seismic fortification requirements of a district in Tianjin.
Keywords: farmhouse; seismic performance appraisal; earthquake damage prediction; comprehensive seismic resistance index
431
0
0