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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2025, Vol. 44 ›› Issue (1): 55-61.DOI: 10.3969/j.issn.1674-0696.2025.01.07

• 交通基础设施工程 • 上一篇    

基于Python的ABAQUS华伦形钢桁梁多尺度模型二次开发

田亮1,2,3，张诚至1，司志远1，程斌4，樊立龙2   

  1. (1. 天津城建大学 土木工程学院，天津 300384；2. 中国铁建大桥工程局集团有限公司，天津 300300； 3. 清华大学 土木工程系，北京 100084；4.上海交通大学 船舶海洋与建筑工程学院，上海 200240)
  • 收稿日期:2024-03-02 修回日期:2024-08-19 发布日期:2025-01-20
  • 作者简介:田亮（1984—），河北正定人，博士，副教授，主要从事高性能钢桥结构，疲劳与断裂方面的研究。E-mail:sjtu_tl@126.com
  • 基金资助:
    国家自然科学基金项目（51708346）；中国铁建股份有限公司科技重大专项（2020-A01）；天津市企业科技特派员项目（22YDTPJC00210）；天津市科技开发项目（19YDLZSF00030）

Secondary Development of Multi-scale Model for ABAQUS Warren Steel Truss Girder Based on Python

TIAN Liang1,2,3, ZHANG Chengzhi1, SI Zhiyuan1, CHENG Bin4, FAN Lilong2   

  1. (1. School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China; 2. China Railway Construction Bridge Engineering Bureau Group Co., Ltd., Tianjin 300300, China, 3. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 4. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2024-03-02 Revised:2024-08-19 Published:2025-01-20

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摘要： 华伦形钢桁梁是目前大跨度铁路悬索桥应用最多的加劲梁形式，但由于结构形式复杂且桥梁跨度不断增加，导致建模过程繁琐。为提高多尺度模型前处理效率，基于Python语言开发了华伦形钢桁梁与桥面板快速建模插件，通过内核执行代码与ABAQUS GUI图形界面交互实现了钢桁梁节段的参数化建模。以我国西南峡谷地区在建SQ铁路悬索桥为例，建立了全桥的多尺度有限元模型，对典型钢梁节段吊装过程进行了抗风验算，并与MIDAS、ANSYS两类有限元软件的计算结果进行了对比，风致位移响应在不同吊装高度的趋势基本一致且误差较小。研究结果表明：所开发的快速建模插件各预设功能均可正常实现，在确保计算精度的同时极大地提高了复杂钢桁梁结构的建模效率。

关键词: 桥梁工程；铁路悬索桥；华伦形钢桁梁；多尺度模型；Python；二次开发

Abstract: The Warren-type steel truss girder is currently the most commonly used stiffening girder for large-span railway suspension bridges. However, due to its complex structural form and the continuous increase of bridge span, the modeling process has become cumbersome. In order to enhance the preprocessing efficiency of multi-scale models, a rapid modeling plug-in for Warren-type steel truss girders and bridge decks was developed on the basis of Python language. The parameterized modeling of steel truss girder segments was realized by the interaction between kernel-executed code and the ABAQUS GUI graphical interface. Taking the SQ railway suspension bridge under construction in the southwest canyon area of China as an example, a multi-scale finite element model of the entire bridge was established. Wind resistance verification was carried out in the typical steel girder segment hoisting process, and the results were compared with those obtained by the finite element software MIDAS and ANSYS. The trend of wind-induced displacement response at different hoisting heights was found to be generally consistent, with small errors. The research results demonstrate that all the preset functions of the developed rapid modeling plug-in can be implemented normally, greatly improving the modeling efficiency of complex steel truss girder structures while ensuring calculation accuracy.

Key words: bridge engineering; railway suspension bridge; Warren steel truss girder; multi-scale model; Python; secondary development

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