Time‑varying Fragility Analysis of Deteriorating RC Bridges under Three‑dimensional Earthquakes

MA Yafei; DONG Xin; LI Xiang; HE Yu; PENG Anyin; WANG Lei

doi:10.13409/j.cnki.jdpme.20231209001

您当前的位置：

首页 >

文章列表页 >

Time‑varying Fragility Analysis of Deteriorating RC Bridges under Three‑dimensional Earthquakes

更新时间：2025-07-07

- Time‑varying Fragility Analysis of Deteriorating RC Bridges under Three‑dimensional Earthquakes
- Journal of Disaster Prevention and Mitigation Engineering Vol. 45, Issue 3, Pages: 593-601(2025)
- 作者机构：
  
  长沙理工大学土木工程学院，湖南长沙 410114
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20231209001
  CLC： U442.55
- Received：08 December 2023，
  
  Revised：2024-01-21，
  
  Published：28 June 2025
- 稿件说明：
移动端阅览
马亚飞,董鑫,黎翔等.考虑三维地震的劣化RC桥梁时变易损性分析[J].防灾减灾工程学报,2025,45(03):593-601.

MA Yafei,DONG Xin,LI Xiang,et al.Time‑varying Fragility Analysis of Deteriorating RC Bridges under Three‑dimensional Earthquakes[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(03):593-601.
马亚飞,董鑫,黎翔等.考虑三维地震的劣化RC桥梁时变易损性分析[J].防灾减灾工程学报,2025,45(03):593-601. DOI： 10.13409/j.cnki.jdpme.20231209001.

MA Yafei,DONG Xin,LI Xiang,et al.Time‑varying Fragility Analysis of Deteriorating RC Bridges under Three‑dimensional Earthquakes[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(03):593-601. DOI： 10.13409/j.cnki.jdpme.20231209001.

摘要

钢筋混凝土（RC）桥梁占我国桥梁总量90%以上，开展多灾害下RC桥梁易损性评估对保障路网安全意义重大。基于OpenSees平台建立了RC桥梁有限元计算模型，采用增量动力分析法对桥梁进行非线性时程分析，得到其在不同强度地震作用下的地震响应值，并结合需求能力比对数回归分析研究了桥梁地震易损性；考虑氯离子侵蚀下钢筋时变退化机理，建立了RC构件的地震易损性曲面；在此基础上，基于二阶界限估计法，考虑构件之间的关联性，构建了RC桥梁系统时变地震易损性评估模型。研究结果表明：在氯离子侵蚀环境中，RC桥梁构件及系统的易损性随服役时间增加逐渐增大，桥梁系统的易损性均高于各桥梁构件；服役100年时，8度罕遇三维地震下，2#墩发生严重损伤的概率为12.5%，桥梁系统的损伤概率达18.5%。三维地震工况下桥梁构件和系统在各损伤状态的超越概率均高于一维地震工况；服役100年时，8度设防三维地震作用下，2#墩发生中等损伤的概率为22.4%，而一维地震下的损伤概率仅为2%。本研究可为全寿命期桥梁结构抗震性能优化设计与评估提供参考。

Abstract

Reinforced concrete (RC) bridges account for more than 90% of the total number of bridges in China. It is of great significance to conduct the seismic fragility assessment of RC bridges under multi-hazard scenarios to ensure the safety of the transportation network. In this study

a finite element model of the RC bridge was established based on OpenSees. The nonlinear time-history analysis of the bridge was carried out using the Incremental Dynamic Analysis method

and the seismic response values under earthquakes of different intensities were obtained. Combined with the logarithmic regression analysis of the demand-to-capacity ratio

the seismic fragility of the bridge was analyzed. Furthermore

the time-varying degradation mechanism of reinforcement was considered under chloride ion erosion

and the seismic fragility surfaces of the RC components were established. On this basis

a time-varying seismic fragility assessment model for the RC bridge system was established using the second-order bound estimation method

considering the correlation among components. The results showed that the fragility of RC bridge components and systems gradually increased with service time. The fragility of the bridge system was higher than that of each component. The probability of severe damage to pier 2# after 100 years under rare three-dimensional earthquake at 8-degree intensity was 12.5%

while that of the bridge system reached 18.5%. For all damage states

the exceedance probabilities of bridge components and the system under three-dimensional earthquakes were significantly higher than those under one-dimensional earthquakes. After 100 years of service

the probability of moderate damage to pier 2# under design-basis three-dimensional earthquake at 8-degree intensity was 22.4%

compared to just 2% under one-dimensional earthquake. This study can provide references for the optimization design and evaluation of seismic performance of bridge structures throughout their life cycle.

关键词

Keywords

references

李克非，廉慧珍，邸小坛 . 混凝土结构耐久性设计原则、方法与标准［J］. 土木工程学报， 2021 ， 54 （ 10 ）： 64 ‑ 71， 96 .

Li K F ， Lian H Z ， Di X T . Durability design of concrete structures： principle， method and standard ［J］. China Civil Engineering Journal ， 2021 ， 54 （ 10 ）： 64 - 71， 96 . （in Chinese）

Yu X H ， Dai K Y ， Li Y S ， et al . Seismic resilience assessment of corroded reinforced concrete structures designed to the Chinese codes ［J］. Earthquake Engineering and Engineering Vibration ， 2021 ， 20 （ 2 ）： 303 - 316 .

Dizaj A E ， Salami M R ， Kashani M M . Nonlinear dynamic behaviour and seismic fragility analysis of irregular multi-span RC bridges ［J］. Structures ， 2022 ， 44 ： 1730 - 1750 .

方圣恩，唐永久 . 隔震与非隔震支座对混凝土箱梁桥地震易损性的影响［J］. 地震工程学报， 2021 ， 43 （ 6 ）： 1368 - 1376 .

Fang S E ， Tang Y J . Seismic fragility of a concrete box-girder bridge with and without isolation bearings ［J］. China Earthquake Engineering Journal ， 2021 ， 43 （ 6 ）： 1368 - 1376 . （in Chinese）

胡明亮 . 基于KDE的高烈度区典型简支梁桥地震易损性分析［J］. 铁道科学与工程学报， 2022 ， 19 （ 1 ）： 198 - 207 .

Hu M L . Seismic fragility of typical simply supported bridge using kernel density estimation in high seismicity region ［J］. Journal of Railway Science and Engineering ， 2022 ， 19 （ 1 ）： 198 - 207 . （in Chinese）

Opabola E A ， Mangalathu S . Seismic fragility assessment of bridges with as-built and retrofitted splice-deficient columns ［J］. Bulletin of Earthquake Engineering ， 2022 ， 21 （ 1 ）： 583 - 603 .

Aldea S ， Bazaez R ， Astroza R ， et al . Seismic fragility assessment of Chilean skewed highway bridges ［J］. Engineering Structures ， 2021 ， 249 ： 113300 .

Dizaj A E ， Salami M R ， Kashani M M . Seismic vulnerability analysis of irregular multi-span concrete bridges with different corrosion damage scenarios ［J］. Soil Dynamics and Earthquake Engineering ， 2023 ， 165 ： 107678 - 107692 .

江辉，谷琼，黄磊，等 . 考虑氯离子侵蚀时变劣化效应的近海斜拉桥地震易损性分析［J］. 东南大学学报（自然科学版）， 2021 ， 51 （ 1 ）： 38 - 45 .

Jiang H ， Gu Q ， Huang L ， et al . Analysis on seismic vulnerability of offshore cable-stayed bridge considering time-dependent deterioration by chloride-induced corrosion ［J］. Journal of Southeast University （Natural Science Edition）， 2021 ， 51 （ 1 ）： 38 - 45 . （in Chinese）

Dey A ， Sil A . Advanced corrosion-rate model for comprehensive seismic fragility assessment of chloride affected RC bridges located in the coastal region of India ［J］. Structures ， 2021 ， 34 ： 947 - 963 .

Yan J L ， Guo A X ， Li H . Comparative analysis of different types of damage indexes of coastal bridges based on time-varying seismic fragility ［J］. Marine Structures ， 2022 ， 86 （ 5 ）： 103288 .

周敉，张洋，姜永存，等 . 氯离子侵蚀后桥墩的抗震性能及损伤指标研究［J］. 振动与冲击， 2022 ， 41 （ 15 ）： 263 - 272 .

Zhou M ， Zhang Y ， Jiang Y C ， et al . Aseismic performance and damage index of pier after chloride ion erosion ［J］. Journal of Vibration and Shock ， 2022 ， 41 （ 15 ）： 263 - 272 . （in Chinese）

杨国俊，叶苏，李喜梅 . 考虑氯离子侵蚀下的RC桥墩时变抗震韧性分析［J］. 华中科技大学学报（自然科学版）， 2023 ， 51 （ 8 ）： 60 - 66 .

Yang G J ， Ye S ， Li X M . Time-dependent seismic resilience analysis of RC bridge piers considering chloride induced corrosion ［J］. Journal of Hua Zhong University of Science and Technology （Natural Science Edition）， 2023 ， 51 （ 8 ）： 60 - 66 . （in Chinese）

Lu X L ， Wei K ， He H F ， et al . Life‐cycle seismic fragility of a cable‐stayed bridge considering chloride‐induced corrosion ［J］. Earthquake Engineering and Resilience ， 2022 ， 1 （ 1 ）： 60 - 72 .

万华平，卫志成，苏雷，等 . 考虑桩径效应的桥梁结构地震风险分析［J］. 振动与冲击， 2021 ， 40 （ 15 ）： 224 - 231 .

Wan H P ， Wei Z C ， Su L ， et al . Seismic risk analysis of bridge structure considering pile diameter effect ［J］. Journal of Vibration and Shock ， 2021 ， 40 （ 15 ）： 224 - 231 . （in Chinese）

李宏男，董皓璐，李超，等 . 基于全寿命周期抗震性能的桥梁结构维修决策方法研究进展［J］. 中国公路学报， 2020 ， 33 （ 2 ）： 1 - 14 .

Li H N ， Dong H L ， Li C ， et al . Research progress on life-cycle performance-based seismic maintenance decision method for bridge structures ［J］. China Journal of Highway and Transport ， 2020 ， 33 （ 2 ）： 1 - 14 . （in Chinese）

Ghazal H ， Mwafy A . Seismic fragility assessment of an existing multi-span RC bridge equipped with risk mitigation systems ［J］. Buildings ， 2022 ， 12 （ 7 ）： 982 - 1008 .

Duracrete . Statistical quantification of the variables in the limit state functions ［M］. Whangarei， Newzealend ： DuraCrete ， 2000 .

既有混凝土结构耐久性评定标准： GB/T 51355—2019 ［S］. 北京：中国建筑工业出版社， 2019 .

梁岩，闫士昌，陆尧，等 . 近海高速铁路桥梁时变地震易损性分析［J］. 防灾减灾工程学报， 2022 ， 42 （ 6 ）： 1248 - 1256 .

Liang Y ， Yan S C ， Lu Y ， et al . Time-varying seismic fragility analysis of offshore high-speed railway bridges ［J］. Journal of Disaster Prevention and Mitigation Engineering ， 2022 ， 42 （ 6 ）： 1248 - 1256 . （in Chinese）

Clark L A ， Chan A H C ， Du Y G . Residual capacity of corroded reinforcing bars ［J］. Magazine of Concrete Research ， 2005 ， 57 （ 3 ）： 135 - 147 .

Shi Y ， Xiong L J ， Qin H G ， et al . Seismic fragility analysis of LRB-isolated bridges considering the uncertainty of regional temperatures using BP neural networks ［J］. Structures ， 2022 ， 44 ： 566 - 578 .

Zhong H Q ， Yuan W C ， Dang X Z ， et al . Seismic performance of composite rubber bearings for highway bridges： Bearing test and numerical parametric study ［J］. Engineering Structures ， 2022 ， 253 ： 113680 .

建筑与市政工程抗震通用规范： GB/T 55002—2021 ［S］. 北京：中国建筑工业出版社， 2021 .

Christensen P T ， Murotsu Y . Application of structural systems reliability theory ［M］. Springer， Berlin ： Heidelberg ， 1986 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Parameter Analysis and Optimization of Irregular LRB-isolated Bridges

Analysis of Global Collapse Resistance in CFST Column‑steel Beam Frame Structures with Staggered Joints

Numerical Simulation of Temperature Field of Prestressed Concrete Box Girder Bridge After Fire Exposure

Seismic Collapse Analysis of Single‑Layer Reticulated Spherical Shell Structure Based on AP Method

Vulnerability Analysis of Typical Six‑story RC Frame Structure under Mainshock‑aftershock Ground Motions

Related Author

XIONG Lijun

QIN Hongguo

WANG Xuexin

LIU Yunshuai

SHI Yan

SUN Shaoyu

XU Chengxiang

LIU Xiaoqiang

Related Institution

School of Civil Engineering, Lanzhou University of Technology

School of Environment and Urban Construction, Lanzhou City University

Institute of High Performance Engineering Structures, Wuhan University of Science and Technology

Hubei Provincial Engineering Research Center of Urban Regeneration

School of Urban Construction, Wuhan University of Science and Technology

⁰