中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2018, Vol. 37 ›› Issue (12): 1-10.DOI: 10.3969/j.issn.1674-0696.2018.12.01

• 桥梁与隧道工程 •    下一篇

波形钢腹板箱梁温度分布

徐向锋1,2,张 峰3,刘佳琪3   

  1. (1. 山东交通学院 交通土建工程学院,山东 济南 250023; 2. 长沙理工大学 土木与建筑学院,湖南 长沙410076; 3. 山东大学 岩土与结构工程研究中心,山东 济南 250061)
  • 收稿日期:2017-09-25 修回日期:2018-09-11 出版日期:2018-12-09 发布日期:2020-07-10
  • 作者简介:徐向锋(1978—),女,山东聊城人,副教授,主要从事桥梁加固方面的研究。 E-mail: 404943332@qq.com。 通信作者:张峰(1978—),男,江苏泰州人,副教授,博士,主要从事钢筋混凝土非线性方面的研究。E-mail: zhangfeng2008@sdu.edu.cn。
  • 基金资助:
    国家自然科学基金项目(51578323);山东省高等学校科技计划项目(J15LG02)

Temperature Distribution of Box Girder with Corrugated Steel Webs

XU Xiangfeng1, 2, ZHANG Feng3, LIU Jiaqi3   

  1. (1.School of Traffic and Civil Engineering, Shandong Jiaotong University, Jinan 250023, Shandong, P. R. China; 2. School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha 410076, Hunan, P. R. China; 3. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, Shandong, P. R. China)
  • Received:2017-09-25 Revised:2018-09-11 Online:2018-12-09 Published:2020-07-10

摘要: 波形钢腹板箱梁的温度梯度是波形钢腹板箱梁桥设计的重要问题。对波形钢腹板箱梁桥开展了9个月温度实测;建立了波形钢腹板的温度场有限元二维模型 ;选取典型天气条件开展数值模拟,对比分析数值模拟和实桥温度测试结果,验证了温度场有限元模型的有效性;对波形钢腹板箱梁桥所处地区的昼夜温差进行 数理统计,得到波形钢腹板箱梁所处地区的大气昼夜温差代表值;基于大气昼夜温差代表值分析了波形钢腹板箱梁的温度分布。分析结果显示:波形钢腹板箱梁 所处地区的昼夜温差服从W(10.453, 2.577)分布;对于顶板,数值模拟温度梯度和《公路桥涵设计通用规范》中对钢混组合桥梁的温度梯度形状类似,区别在于 理论分析得到最大温差为20.8 ℃,而规范定义为25 ℃。

关键词: 桥梁工程, 波形钢腹板, 箱梁, 温度现场测试, 有限元, Weibull, 温度梯度

Abstract: The temperature gradient of the box girder with corrugated steel webs is an important problem in the design of box girder bridges with corrugated steel webs. The temperature field test of box girder bridge with corrugated steel webs was carried out for 9 months; and a 2D finite element model of the temperature field of corrugated steel webs was established. Typical weather conditions were selected to carry out the numerical simulation. The validity of the finite element model of temperature field is verified by comparing the results of numerical simulation and real bridge temperature test. The temperature difference between day and night in the area where the corrugated steel webs box girder bridge was located was analyzed by mathematical statistics, and the representative values of atmospheric temperature difference between day and night in the area where the corrugated steel webs box girder bridge was located were obtained. The temperature distribution of box girder with corrugated steel webs was analyzed based on the representative value of atmospheric temperature difference between day and night. Research results show that: the temperature difference between day and night in the area where the corrugated steel webs box girder bridge is located obeys W (10.453, 2.577) distribution. For the roof, the temperature gradient of numerical simulation is similar to that of steel-concrete composite bridge in General Code for Design of Highway Bridges and Culverts . The difference is that the maximum temperature difference obtained by theoretical analysis is 20.8℃, while that of the standard is defined as 25 ℃.

Key words: bridge engineering, corrugated steel webs, box girder, temperature field test, finite element, Weibull, temperature gradient

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