偏心荷载作用下波纹钢腹板组合箱梁桥的性能研究

IF 3.1 2区工程技术 Q2 ENGINEERING, CIVIL Journal of Bridge Engineering Pub Date : 2023-11-01 DOI:10.1061/jbenf2.beeng-6229

Xiachun Chen, Ruijuan Jiang, Zhizhou Bai, Francis T. K. Au

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引用次数: 0

摘要

波纹钢腹板在组合箱梁桥中的应用，大大提高了组合箱梁桥的结构性能。然而，受剪变形波形钢腹板轴向刚度低也会影响结构在常见的偏心荷载作用下的性能。在这项研究中，进行了实验来研究这种类型的桥梁在偏心荷载下的行为。在实验研究的基础上，对现有扭转理论中的基本假设进行了检验。此外，还对设计规范中考虑偏心荷载作用下变形和翘曲附加截面正应力的扭转常数和放大系数的计算公式进行了校核。通过研究，提出了一些设计建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Behavior of Composite Box-Girder Bridges with Corrugated Steel Webs under Eccentric Loading

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.

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来源期刊

Journal of Bridge Engineering 工程技术-工程：土木

CiteScore

6.30

自引率

5.60%

发文量

166

审稿时长

6 months

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.