Rapid Seismic Performance Assessment and Comparative Selection of FRP Reinforcement Schemes for Earthquake‑damaged RC Frames Based on ETM

MA Gao; JIANG Xuecan; JIA Lizhe

doi:10.13409/j.cnki.jdpme.20231009005

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Rapid Seismic Performance Assessment and Comparative Selection of FRP Reinforcement Schemes for Earthquake‑damaged RC Frames Based on ETM

更新时间：2025-07-07

- Rapid Seismic Performance Assessment and Comparative Selection of FRP Reinforcement Schemes for Earthquake‑damaged RC Frames Based on ETM
- Journal of Disaster Prevention and Mitigation Engineering Vol. 45, Issue 3, Pages: 602-610(2025)
- 作者机构：
  
  1.湖南大学土木工程学院，湖南长沙 410082
  2.工程结构损伤诊断湖南省重点实验室（湖南大学），湖南长沙 410082
  3.东莞市建筑科学研究院有限公司，广东东莞 523809
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20231009005
  CLC： TU375
- Received：09 October 2023，
  
  Revised：2023-12-13，
  
  Published：28 June 2025
- 稿件说明：
移动端阅览
马高,姜雪灿,贾立哲.基于ETM的震损RC框架抗震性能快速评估及FRP加固方案比选[J].防灾减灾工程学报,2025,45(03):602-610.

MA Gao,JIANG Xuecan,JIA Lizhe.Rapid Seismic Performance Assessment and Comparative Selection of FRP Reinforcement Schemes for Earthquake‑damaged RC Frames Based on ETM[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(03):602-610.
马高,姜雪灿,贾立哲.基于ETM的震损RC框架抗震性能快速评估及FRP加固方案比选[J].防灾减灾工程学报,2025,45(03):602-610. DOI： 10.13409/j.cnki.jdpme.20231009005.

MA Gao,JIANG Xuecan,JIA Lizhe.Rapid Seismic Performance Assessment and Comparative Selection of FRP Reinforcement Schemes for Earthquake‑damaged RC Frames Based on ETM[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(03):602-610. DOI： 10.13409/j.cnki.jdpme.20231009005.

摘要

近年来，地震造成大量建筑结构损伤事件时有报道，开展震损结构抗震性能评价与加固研究工作已成为地震灾区的紧迫需求。本研究旨在考虑地震动持时影响，运用耐震时程法，对震损结构、FRP加固震损框架结构的抗震性能进行评估，并快速确定最优FRP加固震损结构方案。首先，建立震损框架的OpenSees数值模型，随后生成多种不同持时的耐震加速度时程曲线（ETA），运用耐震时程法（ETM）和增量动力分析法（IDA）计算结构在地震作用下的响应。对比ETM与IDA法得到的易损性曲线，可验证耐震时程法分析震损结构抗震性能的有效性。在此基础上，对不同类型的FRP加固震损框架结构进行抗震性能评估，综合考虑经济性、效率性等因素，选出最优加固方案。本研究表明，ETM能够高效分析和评估结构抗震性能，显著降低IDA法的计算成本，可为震损结构的抗震性能评估与加固设计提供重要支撑。

Abstract

In recent years

seismic events causing significant damage to building structures have been frequently reported. Consequently

research on the seismic performance assessment and reinforcement of earthquake-damaged structures has become an urgent need in earthquake-affected areas. This study aims to assess the seismic performance of earthquake-damaged structures and frame structures reinforced with fiber-reinforced polymer (FRP) using the endurance time method while considering the influence of seismic motion duration

and to rapidly determine the optimal FRP reinforcement scheme. First

numerical models of earthquake-damaged frames were established in OpenSees. Then

multiple endurance time acceleration (ETA) curves with different durations were generated

and the structural responses under seismic action were calculated using both the endurance time method (ETM) and incremental dynamic analysis (IDA). By comparing the vulnerability curves derived from ETM and IDA methods

the effectiveness of ETM in evaluating the seismic performance of earthquake-damaged structures was verified. On this basis

the seismic performance of earthquake-damaged frame structures reinforced with different types of FRP was evaluated. Based on a comprehensive analysis of cost-effectiveness

efficiency

and other factors

the optimal reinforcement scheme was selected. This study demonstrates that ETM can efficiently analyze and evaluate structural seismic performance

significantly reducing the computational cost compared to IDA

and can provide important support for the seismic performance assessment and reinforcement design of earthquake-damaged structures.

关键词

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