Seismic behavior and performance evaluation of longitudinal concrete restrainer in highway bridges

IF 5.6 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-03-25 DOI:10.1016/j.engstruct.2025.120151

Haoyuan Gao, Jianzhong Li, Xu Chen, Zhongguo Guan

{"title":"Seismic behavior and performance evaluation of longitudinal concrete restrainer in highway bridges","authors":"Haoyuan Gao, Jianzhong Li, Xu Chen, Zhongguo Guan","doi":"10.1016/j.engstruct.2025.120151","DOIUrl":null,"url":null,"abstract":"<div><div>Concrete restrainer is used as an unseating prevention device for small-to-medium span highway bridges, arranged at the bottom of the girder to limit pier-girder relative displacement through pounding with the piers. To investigate the seismic behavior and propose the proper mechanical model of the concrete restrainer, six specimens were designed for unidirectional quasi-static tests. The observed failure mode, force-displacement relationship, and strain distribution under monotonic lateral loads were summarized and analyzed in detail, and the influence of parameters such as shear span ratio, vertical reinforcement ratio, and volumetric stirrup ratio were further discussed. Utilizing the rigid body rotation mode assumed according to the observations of the tests, the peak capacity prediction model and force-displacement skeleton model were proposed. These proposed theoretical analytical models were compared with available ones and demonstrated effective through comparisons with experimental results, due to the consideration of the different states of steel bars caused by the difference of positions. The finite element model of the concrete limiter was developed using ABAQUS, which further validated the rationality of the theoretical model.</div></div>","PeriodicalId":11763,"journal":{"name":"Engineering Structures","volume":"333 ","pages":"Article 120151"},"PeriodicalIF":5.6000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141029625005425","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

Concrete restrainer is used as an unseating prevention device for small-to-medium span highway bridges, arranged at the bottom of the girder to limit pier-girder relative displacement through pounding with the piers. To investigate the seismic behavior and propose the proper mechanical model of the concrete restrainer, six specimens were designed for unidirectional quasi-static tests. The observed failure mode, force-displacement relationship, and strain distribution under monotonic lateral loads were summarized and analyzed in detail, and the influence of parameters such as shear span ratio, vertical reinforcement ratio, and volumetric stirrup ratio were further discussed. Utilizing the rigid body rotation mode assumed according to the observations of the tests, the peak capacity prediction model and force-displacement skeleton model were proposed. These proposed theoretical analytical models were compared with available ones and demonstrated effective through comparisons with experimental results, due to the consideration of the different states of steel bars caused by the difference of positions. The finite element model of the concrete limiter was developed using ABAQUS, which further validated the rationality of the theoretical model.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Engineering Structures 工程技术-工程：土木

CiteScore

10.20

自引率

14.50%

发文量

1385

审稿时长

67 days

期刊介绍： Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed. The scope of Engineering Structures encompasses, but is not restricted to, the following areas: infrastructure engineering; earthquake engineering; structure-fluid-soil interaction; wind engineering; fire engineering; blast engineering; structural reliability/stability; life assessment/integrity; structural health monitoring; multi-hazard engineering; structural dynamics; optimization; expert systems; experimental modelling; performance-based design; multiscale analysis; value engineering. Topics of interest include: tall buildings; innovative structures; environmentally responsive structures; bridges; stadiums; commercial and public buildings; transmission towers; television and telecommunication masts; foldable structures; cooling towers; plates and shells; suspension structures; protective structures; smart structures; nuclear reactors; dams; pressure vessels; pipelines; tunnels. Engineering Structures also publishes review articles, short communications and discussions, book reviews, and a diary on international events related to any aspect of structural engineering.