考虑畸变效应的波形钢腹板组合箱梁桥的横隔板布置形式研究

杜建华; 张晓亮; 沈红云; 卢梦雨; 尹世平

doi:10.3724/j.gyjzG22051602

考虑畸变效应的波形钢腹板组合箱梁桥的横隔板布置形式研究

doi: 10.3724/j.gyjzG22051602

杜建华^1,2,3,
张晓亮⁴,
沈红云^5, ,,
卢梦雨⁶,
尹世平⁶

1. 石家庄铁路职业技术学院, 石家庄 050000;
2. 河北省高校桥隧智慧建造应用技术研发中心, 石家庄 050000;
3. 河北省桥隧工程施工智能控制技术创新中心, 石家庄 050000;
4. 中铁建云南投资有限公司, 昆明 650000;
5. 河北交通职业技术学院, 石家庄 050000;
6. 中国矿业大学力学与土木工程学院, 江苏省土木工程灾变与智能防控高校重点实验室, 江苏徐州 221116

基金项目:

河北省教育厅科学研究项目资助(ZD2022045)。

详细信息

作者简介:
杜建华,硕士,教授,主要从事桥梁设计与施工控制等研究,11070932@qq.com。

通讯作者:
沈红云,硕士,副教授,46290654@qq.com。

计量
- 文章访问数: 12
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- PDF下载量: 1
- 被引次数: 2
出版历程
- 收稿日期: 2022-05-16
- 网络出版日期: 2025-04-02

Research on the Arrangements of Diaphragms in Corrugated Steel Web PC Composite Box Girder Bridges Considering Distortion Effects

1. Shijiazhuang Institute of Railway Technology, Shijiazhuang 050000, China;
2. Application Technology R&D Center of Bridge and Tunnel Intelligent Construction of Hebei Colleges, Shijiazhuang 050000, China;
3. Intelligent Control Technology Innovation Center for Bridge and Tunnel Engineering Construction of Hebei Province, Shijiazhuang 050000, China;
4. China Railway Construction Yunnan Investment Co., Ltd., Kunming 650000, China;
5. Heibei Jiaotong Vocational and Technical College, Shijiazhuang 050000, China;
6. Jiangsu Key Laboratory of Disaster Impact and Intelligent Prevention in Civil Engineering, School of Mechanics & Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China

摘要

摘要: 分析横隔板的布置方式对变截面波形钢腹板组合箱梁桥的影响,运用有限元软件,建立桥梁实体模型进行分析。通过改变荷载作用形式,以桥梁自身的翘曲变形、畸变应力、扭转应力等参数为依据,详细分析了波形钢腹板桥在不同的横隔板布置间距、布置数量下,桥梁的扭转与畸变效应。研究结果表明:在偏心集中荷载作用下,顶板处所受应力最大,且最大扭转应力仅为最大畸变应力的40%;某一截面抗畸变能力的大小主要由距离其最近的两个横隔板间距离决定;横隔板布置位置远近与截面抗扭转能力大小不成正比;与畸变荷载作用相比,在扭转荷载作用下,横隔板处应力波动更为明显;相比于纵向翘曲位移,横隔板的设置对桥梁横向翘曲位移的影响更显著;在跨中设置横隔板对桥梁抗畸变能力影响较大。
- 变截面箱梁 /
- 横隔板 /
- 有限元分析 /
- 扭转效应
Abstract: In order to analyze the influence of the arrangement of diaphragms on the bridge, a solid model was established by using the finite element software. According to the parameters of the bridge itself, such as warping deformation, distortion stress and torsional stress, the torsion and distortion effects of the corrugated steel web bridges with different spacings and numbers of diaphragm plates were analyzed in detail by changing the form of loads. The results showed that the roof was subjected to the maximum stress under the eccentric concentrated load, and the maximum torsional stress was only 40% of the maximum distortion stress. The anti-distortion capacity of a section was mainly determined by the distance between the two nearest diaphragms. The location of the diaphragm was not proportional to the torsion resistance of the section. Compared with the distortion load, the stress mutation at the diaphragm was more obvious under torsional loads. Compared with the longitudinal warping displacement, the setting of diaphragms had more significant effect on the transverse warping displacement of the bridge. The installation of diaphragm in the middle span had great influence on the anti-distortion capability of the bridge.
- box girder with variable cross section /
- diaphragm plate /
- FE analysis /
- torsional effect

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参考文献(11)

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