Temperature field simulation method and average temperature prediction on main cables of suspension bridges

IF 6.4 1区工程技术 Q1 ENGINEERING, CIVIL

Engineering Structures Pub Date : 2025-09-26 DOI:10.1016/j.engstruct.2025.121433

Haiying Ma , Shuai Zou , Yuqing Gao , Ye Xia , Yanan Zhang , Jun Xiao

引用次数: 0

Abstract

To achieve real-time prediction of the average temperature of main cable cross-section (ATMCS) of a suspension bridge, this paper first theoretically derived the key factors causing the deviation when using the arithmetic mean value of the outermost temperatures (AMVST) of main cable cross-section as the predicted value of ATMCS. Subsequently, a refined numerical simulation method for sunshine temperature fields of bridge structures is employed to simulate the sunshine temperature field of main cables. Based on this foundation, quantitative analyses are conducted, and a modified formula for AMVST was derived through parameter fitting and generalization. The results show that this modified formula effectively reduces the deviation, thereby enabling real-time prediction of ATMCS.

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悬索桥主缆温度场模拟方法及平均温度预测

为实现悬索桥主缆截面平均温度的实时预测，本文首先从理论上推导了采用主缆截面最外侧温度的算术平均值作为主缆截面平均温度预测值时产生偏差的关键因素。随后，采用改进的桥梁结构日照温度场数值模拟方法，对主缆日照温度场进行了数值模拟。在此基础上，进行了定量分析，并通过参数拟合和泛化导出了修正的AMVST公式。结果表明，修正后的公式有效地减小了偏差，实现了ATMCS的实时预报。

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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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.