[1]郑元勋,陈义涵,贾方毅,等.水平T构转体桥梁结构抗倾覆稳定性分析[J].郑州大学学报(工学版),2027,48(XX):1-8.[doi:10.13705/j.issn.1671-6833.2027.01.004]
　YuanxZHENG Yuanxun,CHEN Yihan,JIA Fangyi,et al.Anti-overturning Stability Analysis of Horizontal T-structure Rotating Bridge[J].Journal of Zhengzhou University (Engineering Science),2027,48(XX):1-8.[doi:10.13705/j.issn.1671-6833.2027.01.004]
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水平T构转体桥梁结构抗倾覆稳定性分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
48
期数:
2027年XX
页码:
1-8
栏目:
出版日期:
2027-12-10

文章信息/Info

Title:
Anti-overturning Stability Analysis of Horizontal T-structure Rotating Bridge
作者:
郑元勋1,陈义涵1,贾方毅2,张文明3,梁 川3,张帅杰1,4,白立伟3
1. 郑州大学 水利与交通学院,河南 郑州 450001;2. 中国水利水电第十一工程局有限公司,河南 郑州 450001;3. 中铁七局集团郑州工程有限公司,河南 郑州 450003;4. 中国铁路太原局集团有限公司,山西 太原 030013
Author(s):
YuanxZHENG Yuanxun1, CHEN Yihan1, JIA Fangyi2,ZHANG Wenming3, LIANG Chuan3, ZHANG Shuaijie1,4, BAI Liwei3
1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China;2. Sinohydro Bureau No. 11 Co. , Ltd. , Zhengzhou 450001, China;3. Zhengzhou Engineering Co. , Ltd. , of China Railway Seventh Engineering Group, Zhengzhou 450003, China;4. China Railway Taiyuan Group Co. , Ltd. , Taiyuan 030013, China
关键词:
转体桥梁; 抗倾覆稳定性; 不平衡力矩; 临界分析; 数值模拟; 牵引力
Keywords:
rotating bridge;  anti-overturning stability;  unbalanced moment;  critical analysis;  numerical simulation;  traction force
分类号:
U443. 4
DOI:
10.13705/j.issn.1671-6833.2027.01.004
摘要:
转体桥梁结构抗倾覆稳定性是其安全控制的核心问题。本文基于沿太行高速公路某跨线转体桥项目，通过称重试验推导了大、小偏心工况下的力学平衡方程，量化了球铰摩阻力矩与结构不平衡力矩的关系，并分析了转体结构的抗倾覆机理。通过探究不同工况下转体桥梁结构的受力特性，揭示了不平衡力矩与不平衡牵引力对水平T构桥梁结构稳定性的影响规律。结果表明：在该项目条件下，当不平衡力矩超过25 600 kN·m或牵引力达到6 600 kN时，结构位移骤增，球铰应力显著集中，抗倾覆稳定系数降至1.0以下，引发桥梁结构倾覆失稳。基于现场实测数据与力学响应分析，研究量化得出转体桥梁结构的临界不平衡力矩和临界牵引力分别为29 822.6 kN·m和6 689.0 kN，揭示了结构抗倾覆失稳的临界状态判据，为转体桥梁的安全设计和施工管理提供科学依据。
Abstract:
The overturning stability of a swing bridge structure is a key factor in ensuring its safety. Based on a cross-over rotating bridge project along the Taihang Expressway, this paper derives mechanical equilibrium equations under large and small eccentricity conditions through load-bearing tests. It quantifies the relationship between spherical hinge friction moments and structural unbalanced moments, and analyzes the anti-overturning mechanism of rotating structures. By investigating the stress characteristics of rotating bridge structures under different conditions, it reveals the influence patterns of unbalanced moments and unbalanced traction forces on the stability of horizontal T-shaped bridge structures. Results indicate that under project conditions, structural displacement increases abruptly when unbalanced moments exceed 25,600 kN·m or traction forces reach 6,600 kN. This causes significant stress concentration at spherical hinges, reducing the overturning stability factor below 1.0 and triggering structural buckling instability. Based on field measurement data and mechanical response analysis, the critical unbalanced moment and critical traction force for the rotating bridge structure were quantitatively determined to be 29,822.6 kN·m and 6,689.0 kN, respectively. This study reveals the critical state criteria for structural overturning instability, providing a scientific basis for the safe design and construction management of rotating bridges

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更新日期/Last Update: 2026-07-25