[1]安渊博,黄民水,顾箭峰*.预应力筋偏差对悬浇施工波形钢腹板箱梁桥力学性能的影响[J].武汉工程大学学报,2025,47(05):578-584.[doi:10.19843/j.cnki.CN42-1779/TQ.202312011]
　AN Yuanbo,HUANG Minshui,GU Jianfeng*.Influence of prestressed tendon deviation on mechanical performance of box-girder bridge with corrugated steel web plate in cantilever casting construction[J].Journal of Wuhan Institute of Technology,2025,47(05):578-584.[doi:10.19843/j.cnki.CN42-1779/TQ.202312011]

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预应力筋偏差对悬浇施工波形钢腹板箱梁桥力学性能的影响

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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:

47

期数:

2025年05期

页码:

578-584

栏目:

智能制造

出版日期:

2025-10-31

文章信息/Info

Title:

Influence of prestressed tendon deviation on mechanical performance of box-girder bridge with corrugated steel web plate in cantilever casting construction

文章编号:

1674 - 2869（2025）05 - 0578 - 07

作者:

安渊博; 黄民水; 顾箭峰^*

武汉工程大学土木工程与建筑学院，湖北 武汉 430074

Author(s):

AN Yuanbo; HUANG Minshui; GU Jianfeng^*

School of Civil Engineering and Architecture，Wuhan Institute of Technology，Wuhan 430074，China

关键词:

预应力筋偏差; 波形钢腹板箱梁桥; 悬浇施工; 力学性能

Keywords:

prestressed tendon deviation; box-girder bridge with corrugated steel webs; cantilever casting construction; mechanical performance

分类号:

U448.213

DOI:

10.19843/j.cnki.CN42-1779/TQ.202312011

文献标志码:

A

摘要:

为研究悬浇施工波形钢腹板箱梁桥力学性能受预应力筋偏差的影响，以一座（60+110+60） m波形钢腹板连续箱梁桥为例，采用MIDAS仿真模拟其悬浇施工过程，分析体内、体外预应力筋竖向偏位及张拉力误差对桥梁结构挠度及应力的影响，并利用敏感性分析对比4种偏差对最大悬臂、边跨合龙、中跨合龙及成桥阶段主梁结构挠度的影响。结果表明：体内、体外预应力筋偏位和张拉力误差对悬浇施工波形钢腹板箱梁桥的主梁挠度影响较大，而对结构应力影响较小。悬臂束和体外束竖向偏位对主梁挠度的影响较大，当其偏位±15 cm时，主梁挠度的最大变化量为1.87和1.47 mm。悬臂束张拉力误差对主梁挠度的影响较大，边跨合龙束、中跨合龙束及体外束对主梁挠度的影响较小，当张拉力误差±15%时，主梁挠度最大变化量依次为2.58、1.04、0.75、0.97 mm。中跨合龙束施工偏差的敏感度系数最大，悬臂束和体外束次之，边跨合龙束最小。

Abstract:

In order to explore the influence of the prestressed tendon deviation on the mechanical performance of continuous box-girder bridges with corrugated steel web plate in cantilever casting construction，MIDAS was used to simulate the cantilever casting construction process of a (60+110+60) m continuous box-girder bridge with corrugated steel web plate，and the influence of vertical deflection and tension deviation of internal and external prestressed tendons on the deflection and stress of bridge structure was analyzed. In addition，sensitivity analysis was conducted to compare the influence sensitivity of four types of deviations on the deflection of the maximum cantilever，side span closure，mid-span closure and the main beam structure at the bridge completion stage. The results showed that the deflection of the internal and external prestressed tendons and the tension deviation have a great influence on the main girder deflection of the box-girder bridge with corrugated steel web plate in cantilever casting construction，but have little influence on the structural stress. The vertical deflection of cantilever tendons and external tendons has a significant impact on the main beam deflection, with a maximum deflection change of 1.87 mm and 1.47 mm when deviated by ±15 cm. The tension deviation of cantilever tendons has a significant impact on the main beam deflection, while the end span closure bundle, mid-span closure bundle, and external bundle have a smaller impact. When the tension deviation is ±15%，the maximum deflection of the main girder is 2.58，1.04，0.75 and 0.97 mm，respectively. The sensitivity coefficient of construction deviation of middle span closure bundle is the largest，followed by cantilever bundle and external bundle，with side span closure bundle being the smallest.

备注/Memo

备注/Memo:

收稿日期：2023-12-08

基金项目：湖北省交通运输厅科技项目（2020-2-2-6）

作者简介：安渊博，硕士研究生。Email：1329469532@qq.com

*通信作者：顾箭峰，博士，副教授。Email：gjfcqucdu@wit.edu.cn

引文格式：安渊博，黄民水，顾箭峰. 预应力筋偏差对悬浇施工波形钢腹板箱梁桥力学性能的影响［J］. 武汉工程大学学报，2025，47（5）：578-584.

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