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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 (10): 99-106.DOI: 10.3969/j.issn.1674-0696.2025.10.13

• 桥梁与隧道工程 • 上一篇    

钢箱拱肋超大节段提升过程温度效应研究

陶友海1，张源2,3,4，朱劲松2,3,4，叶汪强1，杜鹏1   

  1. (1.中铁十八局集团第五工程有限公司，天津 300450；2.天津大学 水利工程智能建设与运维全国重点实验室，天津 300350； 3.天津大学 滨海土木工程结构与安全教育部重点实验室，天津 300350；4.天津大学 建筑工程学院，天津 300350)
  • 收稿日期:2024-11-01 修回日期:2025-03-25 发布日期:2025-11-06
  • 作者简介:陶友海(1976—)，男，安徽枞阳人，正高级工程师，主要从事桥梁方面的工作。E-mail：mnb_iop_tyh@126.com 通信作者：朱劲松（1975—），男，安徽东至人，教授，博士，主要从事桥梁长期性能评估与提升、桥梁健康监测与识别等方面的研究。E-mail：jszhu@tju.edu.cn
  • 基金资助:
    国家自然科学基金面上项目 (52078333)

Temperature Effect during Lifting Process of Steel Box Arch Rib Oversize Segment

TAO Youhai1，ZHANG Yuan2,3,4，ZHU Jinsong2,3,4，YE Wangqiang1, DU Peng1   

  1. (1. China Railway 18th Bureau Group 5th Engineering Co., Ltd., Tianjin 300450, China; 2. State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300350, China; 3. Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300350, China; 4. School of Civil Engineering, Tianjin University, Tianjin 300350, China)
  • Received:2024-11-01 Revised:2025-03-25 Published:2025-11-06

摘要： 为研究拱肋超大提升节段在提升施工过程中的空间日照温度场变化规律，首先，以传热学原理及空间遮挡理论为依据，计及钢箱结构封闭空间中的空气换热效应；其次，对考虑风速变化的拱肋提升段在提升施工过程中的温度效应进行分析，建立了拱肋提升段空间温度场数值模拟的有限元计算流程；然后，以天津市西中环快速路跨海河桥为工程案例，进行24 h的不均匀温度场预测，并分析其温度效应；最后，对考虑风速变化的拱肋提升段在提升施工过程中的温度效应进行分析。结果表明：提升施工时间为01:00—06:00的情况下，拱肋提升段的合龙截面在提升过程中发生弯转和扭转变形最小，截面形心的纵桥向位移相对稳定，是较为理想的施工时间。

关键词: 桥梁工程；空间温度场；整体提升；三维遮挡；温度效应

Abstract: To investigate the spatial variation rule of the solar radiation temperature field during the lifting construction process of arch ribs with oversize segment, based on the principles of heat transfer and spatial occlusion theory, the air heat exchange effect in the enclosed space of the steel box structure was taken into account. Subsequently, the temperature effect of the arch rib lifting section during the lifting construction process that took into variations of wind speed account was analyzed, and a finite element calculation flowchart for numerical simulation of the spatial temperature field of the arch rib lifting section was established. Subsequently, taking the Haihe River Bridge of the West Central Ring Expressway in Tianjin as an engineering example, a 24-hour prediction of the non-uniform temperature field was performed, and its temperature effects were analyzed. Finally, a detailed analysis will be conducted on the temperature effect of the arch rib lifting section during the lifting construction process, taking into account variations of wind speed. The results indicate that during the lifting operation from 1:00 to 6:00, the arch rib lifting segment experiences minimal bending and twisting deformation at the closure section, and the longitudinal displacement of the centroid of the section remains relatively stable, making this period an ideal time for construction.

Key words: bridge engineering; space temperature field; overall promotion; three-dimensional occlusion; temperature effect

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