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[1]王亚飞,杨宏印*,王 莹,等.钢箱梁竖向温度梯度模式研究——以武汉市某高架桥钢箱梁为例[J].武汉工程大学学报,2021,43(02):202-206.[doi:10.19843/j.cnki.CN42-1779/TQ.201912003]
 WANG Yafei,YANG Hongyin*,WANG Ying,et al.Vertical Temperature Gradient Model of Steel Box Girder:Taking Steel Box Girder of Viaduct in Wuhan as Study Case[J].Journal of Wuhan Institute of Technology,2021,43(02):202-206.[doi:10.19843/j.cnki.CN42-1779/TQ.201912003]
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钢箱梁竖向温度梯度模式研究——以武汉市某高架桥钢箱梁为例(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年02期
页码:
202-206
栏目:
资源与环境工程
出版日期:
2021-04-30

文章信息/Info

Title:
Vertical Temperature Gradient Model of Steel Box Girder:Taking Steel Box Girder of Viaduct in Wuhan as Study Case
文章编号:
1674 -2869(2021)02 -0202 -05
作者:
王亚飞12杨宏印*13王 莹4郝 静3徐 丰3柏 超3
1. 桥梁结构健康与安全国家重点实验室,湖北 武汉 430034;2. 中铁大桥科学研究院有限公司,湖北 武汉 430034;3. 武汉工程大学土木工程与建筑学院,湖北 武汉 430074;4. 武汉临空经济区建设投资开发集团有限公司,湖北 武汉 430000
Author(s):
WANG Yafei12YANG Hongyin*13WANG Ying4HAO Jing3XU Feng3BAI Chao3
1. State Key Laboratory for Health and Safety of Bridge Structures,Wuhan 430034,China;2. China Railway Bridge Science Research Institute,Ltd,Wuhan 430034,China;3. School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan 430074,China;4. Wuhan Airport Economic Zone Construction Investment and Development Group Co., Ltd,Wuhan 430000,China
关键词:
桥梁监测数据温度分布钢箱梁竖向温度梯度
Keywords:
bridgemonitoring datatemperature distributionsteel box girdervertical temperature gradient
分类号:
U448.36
DOI:
10.19843/j.cnki.CN42-1779/TQ.201912003
文献标志码:
A
摘要:
对武汉市某钢箱梁桥进行温度监测,基于2018年7-9月的实测气象数据计算了钢箱梁的温度场,采用TAITHERM软件建立了其温度场模型,发现计算值与温度监测值变化趋势基本一致。结果表明:日最大竖向温度梯度分布为非线性分布,与《公路桥涵设计通用规范》(JTG D60—2015)中的线性分布存在一定差异;日最大竖向温度梯度分布在距顶板50 cm范围内变化明显,分布曲线呈指数形式。通过极值理论发现广义极值分布可以很好的拟合最大温差值,进而确定了设计基准期内武汉地区钢箱梁竖向温度梯度的分布模式。文中的研究方法可用于分析其他地区桥梁结构的温度梯度分布。
Abstract:
The temperature of a steel box girder bridge in Wuhan was measured,and its temperature field was calculated with the meteorological data from July to September in 2018,then its temperature field model was constructed by using TAITHERM software. It is found that the variation trend of the calculated values is basically consistent with that of the monitored temperature values. The results show that the daily maximum vertical temperature gradient distribution is nonlinear,which is different from the linear distribution in General Specifications for Design of Highway Bridges and Culverts(JTG D60-2015);the daily maximum vertical temperature gradient changes obviously within 50 cm from the roof,and the distribution curve is exponential. Through the extreme value theory,it is found that the generalized extreme value distribution can well fit the maximum temperature difference,and then the distribution mode of vertical temperature gradient of steel box girder in Wuhan area in the design reference period is determined. The research method can be used to analyze the temperature gradient distribution of bridge structures in other regions.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-12-04基金项目:国家自然科学基金(51708429);桥梁结构健康与安全国家重点实验室开放课题(2017-04-GF);武汉市城乡建设委员会科技计划项目(201831);武汉工程大学科学研究基金(K201734)作者简介:王亚飞,硕士,高级工程师。E-mail:[email protected]*通讯作者:杨宏印,博士,讲师,硕士研究生导师。E-mail:[email protected]引文格式:王亚飞,杨宏印,王莹,等. 钢箱梁竖向温度梯度模式研究——以武汉市某高架桥钢箱梁为例[J]. 武汉工程大学学报,2021,43(2):202-206.
更新日期/Last Update: 2021-04-26