市政技术2024，Vol.42Issue(4)：211-219,9.DOI:10.19922/j.1009-7767.2024.04.211
梁高受限空心板桥横向连接优化设计分析
Analysis of Optimization Design of Transverse Connection of Hollow Slab Bridge with Limited Beam Height
苏春杰 1宋洪雨 2蔡保硕 2周武 2高鑫崇2
作者信息
- 1. 北京市政路桥管理养护集团有限公司,北京 100097
- 2. 北京市市政工程设计研究总院有限公司,北京 100082||北京市城市桥梁安全保障工程技术研究中心,北京 100082
- 折叠
摘要
Abstract
Taken the reinforcement project of a hollow slab overflow bridge with limited beam height as an example,the stress state of hollow slab beams and hinge joints of old bridge was analyzed in detail by establishing finite ele-ment solid model.The results showed that the hinged joints between original hollow slabs were easily damaged and affected the lateral force transmission of the structure under heavy loads because the small cross-sections and com-plex forces.The low design load and weak reinforcement of the original bridge caused many diseases under the ac-tion of load and environment.In order to completely solve the diseases of bridge structure,the upperstructure was replaced after the substructure reinforcement.A kind of prestressed hollow slab beam with transverse wet connection was designed with the limited beam height.Through comparative analysis,the new hollow slab beams have opti-mized the transverse connection,improved the transverse stress state of joints,improved structural integrity,bear-ing capacity and durability,accelerated construction speed and reduced river occupation.At present,the modified bridge is in good condition.The design and reinforcement scheme can provide reference for similar projects.关键词
桥梁/空心板梁/横向连接/梁高受限/优化设计/维修加固Key words
bridge/hollow slab beam/lateral connection/limited beam height/optimization design/maintenance and reinforcement分类
交通工程引用本文复制引用
苏春杰,宋洪雨,蔡保硕,周武,高鑫崇..梁高受限空心板桥横向连接优化设计分析[J].市政技术,2024,42(4):211-219,9.
