# [1]顾斌,陈志坚,陈欣迪.基于气象参数的混凝土箱梁日照温度场仿真分析[J].东南大学学报(自然科学版),2012,42(5):950-955.[doi:10.3969/j.issn.1001-0505.2012.05.028] 　Gu Bin,Chen Zhijian,Chen Xindi.Simulation analysis for solar temperature field of concrete box girder based on meteorological parameters[J].Journal of Southeast University (Natural Science Edition),2012,42(5):950-955.[doi:10.3969/j.issn.1001-0505.2012.05.028] 点击复制 基于气象参数的混凝土箱梁日照温度场仿真分析() 分享到： var jiathis_config = { data_track_clickback: true };

42

2012年第5期

950-955

2012-09-20

## 文章信息/Info

Title:
Simulation analysis for solar temperature field of concrete box girder based on meteorological parameters

1 河海大学土木与交通学院,南京 210098; 2 河海大学地球科学与工程学院,南京 210098; 3 河海大学港口海岸与近海工程学院,南京 210098
Author(s):
1 College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
2 School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China
3 College of Harbour, Costal and Offshore Engineering, Hohai University, Nanjing 210098, China

Keywords:

U448.35
DOI:
10.3969/j.issn.1001-0505.2012.05.028

Abstract:
To solve the problem of temperature gradient of the bridge which puzzles the engineering design, a finite element model of solar temperature field of concrete box girder based on meteorological parameters and location and orientation of the bridge is established. Taking the auxiliary channel bridge of the Sutong Bridge for example, by using the measured temperature and meteorological data from July 2 to July 7, 2008, the accuracy of the model is verified. The effects of daily range of the ambient temperature and the average wind speed on the temperature gradient of concrete box girder are studied. The analysis results show that the average wind speed has a significant effect on the maximum temperature gradient while the effect of daily range of ambient temperature is much less. Finally, the temperature gradient of the concrete box girder is analyzed with the meteorological parameter standard values of 50-year and the extreme temperature gradient is proposed as 18.3 ℃. The comparison results of the proposed temperature gradient model with the model specified by code of different countries show that when analyzing the solar temperature field of concrete box girder, the meteorological parameters should be considered to obtain the mode of temperature gradient which fits the local bridge.

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