基于地震损失风险的多层砌体结构抗震构造措施评估
引用文献：
张永群 王卓琳 蒋利学 冷予冰. 基于地震损失风险的多层砌体结构抗震构造措施评估[J]. 建筑结构，2023，48（02）：107-112.
ZHANG Yongqun WANG Zhuolin JIANG Lixue LENG Yubing. Evaluation of seismic structural measures of multi-storey masonry structures based on seismic loss risk[J]. Building Structure，2023,48（02）：107-112.
摘要：地震损失风险可反映建筑结构的抗震性能，其定量评价不仅是结构抗震设计参数选择的重要环节，也是防震减灾决策的重要依据。为研究采用不同抗震构造措施的砌体结构的抗震能力，提出了砌体结构基于地震危险性和结构易损性的损失评估方法。设计了25种不同抗震构造措施的砌体结构模型，采用非迭代静力分析的砌体结构易损性分析方法研究了地震作用下砌体结构的失效概率，并分析了砌体结构在1年和50年内可能发生的经济损失和人员伤亡损失风险。结果表明，抗震构造措施可显著降低砌体结构地震损失风险，无抗震构造措施的砌体结构倒塌概率是采用完备抗震构造措施时的5.5倍。基于人员伤亡率控制的计算结果与现行设计规范要求基本一致，但对低层砌体结构的抗震构造措施要求更为宽松。
关键词：多层砌体结构；抗震构造措施；易损性分析；地震损失风险；
基金：国家重点研发计划(2017YFC0702900)；上海市科学技术委员会项目(19DZ1202400)。
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[13] 张永群，蒋利学，王卓琳.基于性能的多层砌体结构地震易损性分析[J].建筑结构学报，2021,42(5):64-71.
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[5] FEMA.Seismic performance assessment of buildings Volume 1-methodology [R].Washington,D.C.:Federal Emergency Management Agency,2012.
[6] 罗文文，李英民，韩军.基于全概率PBEE方法的RC框架结构地震损失分析[J].工程力学，2016,33(9):186-194.
[7] 王树和，张举兵.基于地震损失风险钢筋混凝土框架结构弯矩增大系数评估[J].工程力学，2018,35(3):132-140.
[8] XIE L,MA Y.Studies on performance-based seismic design criterion [J].Acta Seismologica Sinica,2002,24(2):200-209.
[9] BORZI B,CROWLEY H,PINHO R.Simplified pushover-based earthquake loss assessment (SP-BELA)method for masonry buildings[J].International Journal of Architectural Heritage,2008,2(4):353-376.
[10] AHMAD N,ALI Q.Displacement-based seismic assessment of masonry buildings for global and local failure mechanisms[J].Cogent Engineering,2017,4(1):1-33.
[11] 蒋利学，王卓琳，张富文.多层砌体结构的损坏程度与层间位移角限值[J].建筑结构学报，2018,39(S2):263-270.
[12] 蒋利学，张富文，王卓琳.罕遇与设防烈度地震作用下规则多层砌体结构的抗震计算实用方法[J].建筑结构学报，2020,41(6):170-179.
[13] 张永群，蒋利学，王卓琳.基于性能的多层砌体结构地震易损性分析[J].建筑结构学报，2021,42(5):64-71.
[14] 谢礼立，马玉宏，翟长海.基于性态的抗震设防与设计地震动[M].北京：科学出版社，2009.
[15] 尚志海，刘希林.国外可接受风险标准研究综述[J].世界地理研究，2010,19(3):72-80.
[16] 砌体结构设计规范：GB 50003—2011 [S].北京：中国建筑工业出版社，2012.
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Evaluation of seismic structural measures of multi-storey masonry structures based on seismic loss risk
Abstract: Seismic loss risk can reflect the seismic performance of building structures, and its quantitative evaluation is not only an important link in the selection of structural seismic design parameters, but also an important basis for earthquake prevention and disaster mitigation decisions. In order to evaluate the seismic capacity of masonry structures with different seismic structural measures, a method for calculating seismic loss based on sesmic risk and structural fragility was proposed. 25 types of masonry structure models with different seismic measures were designed, and failure probability of masonry structures under earthquake action was studied by using non-iterative static analysis method for masonry structure fragility analysis. The annual and 50-year risk of economic loss and casualty loss that may occur in masonry structures were analyzed. The results indicate that the earthquake loss risk decreases with the increase of seismic measures, and the collapse probability of masonry structure without seismic structural measure is 5.5 times of that with sufficient seismic structural measure. The calculation results based on casualty rate control are basically consistent with the requirements of the current design code, but the requirements for seismic structural measures of low-rise masonry structures are more relaxed.
Keywords: multi-storey masonry structure; seismic structural measure; fragility analysis; seismic loss risk
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