Field tests and structural performance evaluation of existing reinforced concrete hollow slab beam bridges

IF 5.6 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-03-19 DOI:10.1016/j.engstruct.2025.120128

Jing-Lin Xiao , Yu-Fei Liu , Hao-Long Feng , Jian-Guo Nie

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引用次数: 0

Abstract

Ensuring the safety and reliability of common reinforced concrete hollow slab beam bridges through structural performance evaluations is crucial for maintaining highway system functionality, social stability, and economic prosperity. This paper presents field tests and a structural performance evaluation of an existing hollow slab beam bridge. First, a lateral load distribution test was conducted to reveal the lateral load distribution performance of this bridge. Second, a single-beam destructive test was conducted to investigate the structural performance of the hollow slab beams. A modified hinge-connected slab/beam method was presented to estimate the actual stiffnesses of hollow slab beams and hinge joints, revealing the lateral load distribution performance and damage distribution of the bridge. On the basis of the estimated actual stiffnesses and experimental data, the flexural stiffnesses and deflections of hollow slab beams under the serviceability limit state were evaluated. In addition, the applicability of the flexural stiffness formulas in JTG 3362–2018, AASHTO LRFD BDS and EN 1992–2 to the structural performance evaluation of existing bridges was assessed. Moreover, the formulas in these standards were adopted to estimate the bending capacities of hollow slab beams, and their applicability was also discussed. This study offers guidance for evaluating the structural performance of existing concrete bridges.

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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.