1.大连理工大学海岸和近海工程国家重点实验室,辽宁 大连 116024
2.沈阳建筑大学土木工程学院,辽宁 沈阳 110168
吕光辉(1993—),男,硕士研究生。主要从事村镇建筑结构抗多灾害设计研究。E-mail:1052555181@qq.com
李钢(1979—),男,教授,博士。主要从事工程防灾减灾研究。E-mail:gli@dlut.edu.cn
纸质出版:2022-04-28
移动端阅览
吕光辉,李钢,董志骞等.洪水冲刷和地震联合作用下砌体结构的失效风险评估[J].防灾减灾工程学报,2022,42(02):294-302.
LYU Guanghui,LI Gang,DONG Zhiqian,et al.Failure Risk Assessment of Masonry Structures under Flood Scouring and Earthquakes[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(02):294-302.
吕光辉,李钢,董志骞等.洪水冲刷和地震联合作用下砌体结构的失效风险评估[J].防灾减灾工程学报,2022,42(02):294-302. DOI: 10.13409/j.cnki.jdpme.201910025.
LYU Guanghui,LI Gang,DONG Zhiqian,et al.Failure Risk Assessment of Masonry Structures under Flood Scouring and Earthquakes[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(02):294-302. DOI: 10.13409/j.cnki.jdpme.201910025.
基于风险理论,提出一种用概率方法来考虑洪水和地震作用下砌体结构的失效风险评估方法。根据村镇建筑结构在灾害作用下的性能要求,量化结构的性能指标,分析村镇建筑结构在洪水冲刷和地震联合作用下的易损性,综合考虑洪水冲刷、地震的灾害危险性和结构易损性,通过易损性函数与联合灾害概率密度函数在灾害域上积分,获得结构在不同破坏状态下的超越概率,引入损失比和结构累计失效概率,进而获得全性能状态下的可靠度指标,并与目标可靠度指标对比,进行结构性能评估。算例展示了本文方法的建立过程,结果表明:冲刷对结构轻微破坏和中度破坏的易损性影响较小,对严重破坏和倒塌状态的易损性影响较大;洪水冲刷对结构抗震性能具有较大的影响,相比于仅考虑地震作用下,同时考虑洪水冲刷和地震联合作用时,结构各种破坏状态下的失效概率均有所增加,且随着破坏程度的加剧,冲刷对结构失效概率的影响越来越大。
Based on the risk theory, a probabilistic method for considering the failure risk assessment of masonry structures under flood and earthquake is proposed. According to the performance requirements of the building structure in villages and towns under the action of disasters, the performance index of the structure is quantified, and the structural vulnerability of the building structure in villages and towns under the combined action of flood scouring and earthquake is analyzed. Considering scouring hazard, earthquake hazard and structural fragility, the probability of exceedance of the structure under different failure states is obtained by integrating of the fragility function and the joint disaster probability density function in the disaster domain. Furthermore, the loss ratio and the cumulative failure probability of the structure are introduced to obtain the reliability index under the full operation state. Finally, structural assessment is performed in comparison with target reliability indicators. The example illustrates the establishment process of the method. The results show that the scouring has little effect on the fragility of structural minor damage and moderate damage, and has a great influence on the severe damage and collapse. The flood scouring has a great influence on the seismic performance of structures. When considering the combined effect of flood scouring and earthquake, compared with single earthquake effect, the failure probability in each failure state of the structure greatly increases, and as the degree of damage increasing, the impact of scouring on the probability of structural failure is getting bigger and bigger.
中华人民共和国民政部 . 中国民政统计年鉴—2017 [M]. 北京 : 中国统计出版社 , 2017 .
Ministry of Civil Affairs of the People's Republic of China . China civil affairs statistical yearbook—2017 [M]. Beijing : China Statistics Press , 2017 . (in Chinese)
国家防汛抗旱总指挥部 , 中华人民共和国水利部 . 中国水旱灾害公报—2017 [M]. 北京 : 中国水利水电出版 社 , 2017 .
National Flood Control and Drought Relief Headquarters , Ministry of Water Resources of the People's Republic of China . China water and drought disaster bulletin—2017 [M]. Beijing : China Water Resources and Hydropower Press , 2017 . (in Chinese)
Hong X J , Gu M . Probability model and solution on earthquake effects combination in along wind resistant design of tall-flexible buildings [J]. Applied Mathematics and Mechanics , 2006 , 27 ( 5 ): 627 - 636 .
孙得璋 . 地震和重卡车荷载作用下桥梁多灾害设计理论研究 [D]. 哈尔滨 : 中国地震局工程力学研究所 , 2012 .
Sun D Z . Study on multiple hazards design theory for bridge under earthquakes and heavy truck loads [D]. Harbin : Institute of Engineering Mechanics, China Earthquake Administration , 2012 . (in Chinese)
Wang Y , Lin F , Gu X L . Load and resistance factors for progressive collapse resistance design of reinforced concrete building structures [J]. Advanced Materials Research , 2011 , 255-260 : 338 - 344 .
Unnikrishnan V U , Barbato M . Performance-based hurricane engineering: A multi-hazard approach [M]. Switzerland : Springer , 2016 .
Attary N , Unnikrishnan V U , Van d L J W , et al . Performance-based tsunami engineering methodology for risk assessment of structures [J]. Engineering Structures , 2017 , 141 : 676 - 686 .
Petrini F , Palmeri A . Performance-based design of bridge structures subjected to multiple hazards: A review [C]∥ Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Managemen . London : Taylor & Francis Group , 2012 : 2040 - 2047 .
Wen Y K . Minimum lifecycle cost design under multiple hazards [J]. Reliability Engineering & System Safety , 2001 , 73 ( 3 ): 223 - 231 .
Ghosh J , Padgett J E . Aging considerations in the development of time-dependent Seismic Fragility Curves [J]. Journal of Structural Engineering , 2010 , 136 ( 12 ): 1497 - 1511 .
李宏男 , 郑晓伟 , 李超 . 高性能结构抗多次多种灾害全寿命性能分析与设计理论研究进展 [J]. 建筑结构学报 , 2019 , 40 ( 2 ): 60 - 73 .
Li H N , Zheng X W , Li C . Research progress on life-cycle multihazard-based design theory for high-performance structures [J]. Journal of Building Structures , 2019 , 40 ( 2 ): 60 - 73 . (in Chinese)
刘兵 , 梁发云 , 彭君 . 地震与洪水作用下桥墩基础易损性曲线与回归分析 [J]. 结构工程师 , 2016 , 32 ( 6 ): 155 - 161 .
Liu B , Liang F Y , Peng J . Fragility analysis and parameters regression of bridge foundation under the combined action of earthquake and flood [J]. Structural Engineers , 2016 , 32 ( 6 ): 155 - 161 . (in Chinese)
杨延凯 , 马如进 , 陈艾荣 . 基于风险的桥梁多灾害下合理冲刷深度研究 [J]. 华南理工大学学报 (自然科学版) , 2016 , 44 ( 3 ): 103 - 109 .
Yang Y K , Ma R J , Chen A R . Research on reasonable scouring depth of bridges based on risk [J]. Journal of South China University of Technology(Natural Science Edition) , 2016 , 44 ( 3 ): 103 - 109 . (in Chinese)
Briaud J L , Brandimarte L , Wang J , et al . Probability of scour depth exceedance owing to hydrologic uncertainty [J]. Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards , 2007 , 1 ( 2 ): 77 - 88 .
Arnesol A , Zevenbergen L W , Lagasse P F . Evaluating scour at bridges [R] . Washington D C : U.S. Department of Transportation Federal Highway Administration , 2012 .
高小旺 , 鲍霭斌 . 用概率方法确定抗震设防标准 [J]. 建筑结构学报 , 1986 , 7 ( 2 ): 55 - 63 .
Gao X W , Bao Y B . Determination of seismic fortification standards by probability method [J]. Journal of Building Structures , 1986 , 7 ( 2 ): 55 - 63 . (in Chinese)
丁宝荣 , 孙景江 , 杜轲 , 等 . 地震烈度与峰值加速度、峰值速度相关性研究 [J]. 地震工程与工程振动 , 2017 ( 2 ): 28 - 38 .
Ding B R , Sun J J , Du Wei , et al . Study on relationships between seismic intensity and peak ground acceleration,peak ground velocity [J]. Earthquake Engineering and Engineering Dynamics , 2017 ( 2 ): 28 - 38 . (in Chinese)
陈力波 . 汶川地区公路桥梁地震易损性分析研究 [D]. 成都 : 西南交通大学 , 2012 .
Cheng L B . Seismic fragility analysis and research of highway bridges in Wenchuan area [D]. Chengdu : Southwest Jiaotong University , 2012 . (in Chinese)
赵文哲 . 砌体结构地震易损性研究 [D]. 北京 : 中国地震局地球物理研究所 , 2018 .
Zhao W Z . Seismic fragility analysis of masonry build-ing [D]. Beijing : Institute of Geophysics, China Earthquake Administration , 2018 . (in Chinese)
苏启旺 , 许浒 , 吴昊 , 等 . 砖砌体结构层间位移角的探讨 [J]. 土木工程学报 , 2013 ( 增1 ): 111 - 116 .
Su Q W , Xu H , Wu H , et al . Research on inter-story displacement angle of brick masonry structures [J]. China Civil Engineering Journal , 2013 ( Sup1 ): 111 - 116 . (in Chinese)
屈成忠 , 谢礼立 . 中高层砌块砌体结构性态水平分析 [J]. 结构工程师 , 2005 , 21 ( 4 ): 37 - 40 .
Qu C Z , Xie L L . Analysis of performance levels of high-rise concrete block masonry structures [J]. Structural Engineers , 2005 , 21 ( 4 ): 37 - 40 . (in Chinese)
熊立红 . 多层混凝土砌块结构性态抗震研究 [D]. 哈尔滨 : 中国地震局工程力学研究所 , 2004 .
(本文责编:周小潭)
0
浏览量
0
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
苏公网安备32010202012147号
