Xiachun Chen, Ruijuan Jiang, Zhizhou Bai, Francis T. K. Au
{"title":"Behavior of Composite Box-Girder Bridges with Corrugated Steel Webs under Eccentric Loading","authors":"Xiachun Chen, Ruijuan Jiang, Zhizhou Bai, Francis T. K. Au","doi":"10.1061/jbenf2.beeng-6229","DOIUrl":null,"url":null,"abstract":"The incorporation of corrugated steel webs in composite box-girder bridges has greatly improved their structural performance. However, the low axial stiffness of the shear-deformable corrugated steel webs also affects the structural behavior under the commonly encountered eccentric loading. In this study, experiments were carried out to investigate the behavior of this type of bridge under eccentric loading. Based on the experimental study, the basic assumptions in existing torsion theories are examined. In addition, the proposed formula to estimate the torsion constant and amplification factor considering the additional sectional normal stress due to distortion and warping under eccentric loading in design codes is also checked. From the study, some design recommendations are provided.","PeriodicalId":56125,"journal":{"name":"Journal of Bridge Engineering","volume":"32 12","pages":"0"},"PeriodicalIF":3.1000,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Bridge Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1061/jbenf2.beeng-6229","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0
Abstract
The incorporation of corrugated steel webs in composite box-girder bridges has greatly improved their structural performance. However, the low axial stiffness of the shear-deformable corrugated steel webs also affects the structural behavior under the commonly encountered eccentric loading. In this study, experiments were carried out to investigate the behavior of this type of bridge under eccentric loading. Based on the experimental study, the basic assumptions in existing torsion theories are examined. In addition, the proposed formula to estimate the torsion constant and amplification factor considering the additional sectional normal stress due to distortion and warping under eccentric loading in design codes is also checked. From the study, some design recommendations are provided.
期刊介绍:
The Journal of Bridge Engineering publishes papers about all aspects of the art and science of bridge engineering. The journal publishes research that advances the practice and profession of bridge engineering and papers about issues, projects, materials, design, fabrication, construction, inspection, evaluation, safety, performance, management, retrofitting, rehabilitation, repair, and demolition.