Compared with conventional structures, transportation hub buildings, as critical nodes in urban transportation networks, show their large scales and functional complexity. To address the lack of specificity in existing methods for evaluating post-earthquake functional loss, a novel evaluation method based on component functional assembly is proposed for typical transportation hub buildings. Considering the uncertainty in component functional loss, a mapping relationship between damage states and functional loss is established. Logic trees of floor-level functional loss for passenger bus stations are established by applying fuzzy operators. Given the functional correlation between floors, the TrueSkill algorithm is adapted to quantify the importance weight coefficients, and the functional loss quantification from floors to the overall structure is established. Finally, the proposed method is applied to the post-earthquake functional loss assessment of a three-story reinforced concrete frame structure passenger bus station, demonstrating the feasibility of the proposed method.
建筑构件的震后损伤状态用DS i 表示,其中DS0、DS1、DS2……DS n (n≥1)依次表示构件损伤由轻微到严重,DS0表示完好无损状态,DS n 表示完全损坏状态. 地震易损性分析从概率角度反映了工程结构的抗震性能,在确定构件损伤状态的概率分布模型后,利用蒙特卡罗法在区间[0,1]内生成均匀分布的随机数,模拟构件的损伤状态. Cimellaro等[8]分别采用直线型、指数型和三角函数型功能恢复函数描述系统的功能恢复过程. 本研究根据功能恢复曲线假定功能损失(functional loss,FL)与损伤状态(damage state,DS)的映射关系符合三种类型:线性函数、指数函数、三角函数. 考虑到地震作用、构件材料、施工过程等存在不确定性,本研究参考结构全概率抗震性能评估理论,假定构件在给定的损伤状态下对应的功能损失符合对数正态概率分布(θ为中值,σ为对数标准差). 对损伤状态进行归一化处理,如式(1)所示.
Hanshin-Awaji Earthquake Railway Reconstruction Memoir Compilation Committee. Hanshin-Awaji earthquake railway reconstruction record[M]. Japan: Department of Railways, Ministry of Transport, 1996. (in Japanese)
[5]
MIRANDAE, MOSQUEDAG, RETAMALESR,et al .Performance of nonstructural components during the 27 February 2010 Chile earthquake[J]. Earthquake Spectra, 2012, 28(Sup.1): 453-471.
HUANGY, XIEY C, TIANL,et al .Earthquake damage and enlightenment from traffic system in 2023 Turkey Ms7.8 earthquake[J]. World Earthquake Engineering, 2023, 39(3): 1-15.(in Chinese)
CONGY. Study on multi-level function loss and seismic resilience assessment method of urban complex[D].Dalian:Dalian University of Technology,2022.(in Chinese)
NINGX Q. Research on evaluation methodology of seismic safety and resilience for significant buildings[D]. Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2018.(in Chinese)
[12]
薛璐 .交通阻滞影响下区域建筑震后功能恢复能力评估[D].大连:大连理工大学, 2021.
[13]
XUEL .Evaluation of functional recovery ability of regional buildings after earthquake under the influence of traffic block[D].Dalian:Dalian University of Technology,2021.(in Chinese)
[14]
CIMELLAROG P, REINHORNA M, BRUNEAUM .Framework for analytical quantification of disaster resilience[J]. Engineering Structures, 2010, 32(11): 3639-3649.
LUY, ZHANGY M, ZHANGX L .An investigation on seismic resilience of ceiling system attached to single-layer reticulated dome[J]. Earthquake Engineering and Engineering Dynamics,2021, 41(6): 105-113.(in Chinese)
LIUR K. Deformation and energy-based seismic damage assessment of frame-shear wall structure[D].Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2019.(in Chinese)
FANY J, YUB S, LUY L,et al .Study on Modified Park-Ang seismic damage model for interior joints of enhanced recycled aggregate concrete frame[J].Journal of Experimental Mechanics,2020,35(1):159-166.(in Chinese)
HES W. Computational evaluation of the functional loss of individual buildings under disasters[D]. Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2017.(in Chinese)
[30]
YUP, WENW P, JID F,et al .A framework to assess the seismic resilience of urban hospitals[J].Advances in Civil Engineering,2019, 2019(1): 7654683.
[31]
WENW P, HUJ, ZHAIC H,et al. Post-earthquake functionality assessment of subway stations considering the interdependency among sub-systems[J]. Computer-Aided Civil and Infrastructure Engineering, 2024, 39(1): 136-161.
[32]
LIUJ, ZHAIC H, YUP. A probabilistic framework to evaluate seismic resilience of hospital buildings using Bayesian networks[J]. Reliability Engineering & System Safety,2022, 226: 108644.
LIW J. Research on the seismic vulnerability models of typical buildings in China[D]. Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2021.(in Chinese)
OUJ P, HEZ, WUB,et al. Seismic damage performance- based design of reinforced concrete structures[J]. Earthquake Engineering and Engineering Vibration, 1999, 19(1): 21-30.(in Chinese)
[41]
郑世杰. 单层柱面铝合金网壳结构地震易损性及概率风险评估[D]. 广州: 广州大学,2020.
[42]
ZHENGS J. Seismic vulnerability and probability risk assessment of single-layer cylindrical aluminum alloy reticulated shell structure[D]. Guangzhou:Guangzhou University,2020.(in Chinese)
ZHIX D, GONGJ, FANF .Research on the seismic fragility of orthogonal pyramid space grid[J].Journal of Harbin Institute of Technology,2017,49(12):32-38.(in Chinese)
[49]
张天明 .空间网格结构的地震损伤快速评估方法研究[D].哈尔滨:哈尔滨工业大学,2017.
[50]
ZHANGT M .Research on rapid assessment of seismic damage for spatial latticed structures[D].Harbin:Harbin Institute of Technology,2017.(in Chinese)
ZHUY F. Earthquake response analysis and fragility analysis of long-span steel structure truss considering seismic input direction [D]. Suzhou:Suzhou University of Science and Technology,2021.(in Chinese)
XUQ, MAY, WANGS L .Vulnerability analysis of buckling-restrained brace frame based on the component damage[J]. Journal of Sichuan University (Engineering Science Edition),2015, 47(4):61-68.(in Chinese)
NIUD T, RENL J. A modified seismic damage model with double variables for reinforced concrete structures[J]. Earthquake Engineering and Engineering Dynamics,1996,16(4):44-54.(in Chinese)
BOJ S, ZHANGJ Y, SUNP S,et al. Discussion on seismic damage index and relevant problems[J]. Journal of Natural Disasters, 2012, 21(6): 37-42.(in Chinese)
LINX C, LIUX Y, HUR K,et al .Regional damage analysis and resilience evaluation of buildings in the epicenter region of 2014 Ludian earthquake[J]. Journal of Seismological Research,2020,43(3): 449-455.(in Chinese)
XUY T, FANGY M .Quantitative analysis of seismic resilience of residential functions in urban areas[J].Urbanism and Architecture,2021,18(16):157-162.(in Chinese)
[69]
毕可为 .群体建筑的易损性分析和地震损失快速评估[D].大连:大连理工大学,2009.
[70]
BIK W .Vulnerability analysis of group buildings and earthquake loss fast estimation[D].Dalian:Dalian University of Technology,2009.(in Chinese)
[71]
孙龙飞 .城市地震灾害损失评估方法及系统开发研究[D].西安: 西安建筑科技大学, 2016.
[72]
SUNL F. Research on the earthquake disaster loss assessment method for urban areas and system development[D]. Xi’an: Xi’an University of Architecture and Technology,2016.(in Chinese)
[73]
陈洪富 .城市房屋建筑装修震害损失评估方法研究[D].哈尔滨:中国地震局工程力学研究所,2008.
[74]
CHENH F. Study on earthquake damage loss assessment of urban buildings’ decorations[D]. Harbin:Institute of Engineering Mechanics, China Earthquake Administration, 2008.(in Chinese)
LIG, XUEL, YUD H,et al .Evaluation of functional recovery ability of regional buildings after earthquake considering traffic block[J]. China Civil Engineering Journal, 2021, 54(12):1-11.(in Chinese)
[77]
王晓娜 .不同材质供水管道地震易损性研究[D]. 哈尔滨:中国地震局工程力学研究所,2022.
[78]
WANGX N .Study on seismic vulnerability of water supply pipelines with different materials[D]. Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2022.(in Chinese)
[79]
POULOSA, DE LA LLERAJ C, MITRANI-REISERJ .Earthquake risk assessment of buildings accounting for human evacuation[J].Earthquake Engineering & Structural Dynamics,2017,46(4):561-583.