[1] Chen Xiaoqiang, Liu Qiwei, Zhu Jun,. Measurement and theoretical analysisof solar temperature field in steel-concrete composite girder [J]. Journal of Southeast University (English Edition), 2009, 25 (4): 513-517. [doi:10.3969/j.issn.1003-7985.2009.04.020]
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Measurement and theoretical analysisof solar temperature field in steel-concrete composite girder(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 25
- Issue:
- 2009 4
- Page:
- 513-517
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2009-12-30
Info
- Title:
- Measurement and theoretical analysisof solar temperature field in steel-concrete composite girder
- Author(s):
- Chen Xiaoqiang1; Liu Qiwei1; Zhu Jun2
-
1School of Transportation, Southeast University, Nanjing 210096, China
2Anhui Communications Consulting & Design Institute, Hefei 230031, China
- PACS:
- U448.38
- DOI:
- 10.3969/j.issn.1003-7985.2009.04.020
- Abstract:
- The solar temperature field of a large three-span continuous bridge with steel-concrete composite box girder and variable cross-section is measured to verify a calculation method for the temperature field of steel-concrete composite beams. The test results show that the temperature of an external steel web-plate is higher than that of an internal web-plate due to the difference in solar radiation. Air temperature inside the box matches the average temperature of the whole steel box. Based on actual measurements, a transient thermal analysis with multiple boundary conditions is also carried out by a software program ANSYS. Convective boundary situation and states of solar radiation on steel web plates in different situations are determined in the analysis. The feature of the temperature field is preliminarily achieved through a comparative study between the actual measurement and the finite element analysis. The computed results are in good consistence with the actual measurement results, with the maximum difference within 2 ℃. This indicates that the theoretical calculation method is reliable and it provides a foundation for further research on temperature field distribution in the steel-concrete composite box girder.
References:
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[6] Zhang Jianrong, Xu Xiangdong, Liu Wenyan. A test study on the solar radiation absorption coefficient of concrete surface[J]. Buiding Science, 2006, 22(1): 42-45.(in Chinese)
[7] Zhang Jianrong, Liu Zhaoqiu, Liu Wenyan. Experimental research on natural convective coefficient of concrete surface[J]. Sichuan Building Science, 2007, 33(5): 143-146.(in Chinese)
[8] Mei Mingrong, Yang Yong, Wang Shanshan, et al. Study of thermal property of steel-fiber concrete and its crack-resistance capacity[J]. Journal of Hydraulic Engineering, 2007(S1): 111-117.(in Chinese)
[9] Ministry of Construction of the People’s Republic of China. Thermal design code for civil building[S]. Beijing: China Planning Press, 1993.(in Chinese)
[10] Zhang Caohui. Tutorials and examples of thermal analysis by ANSYS 8.0[M]. Beijing: China Railway Publishing House, 2005.(in Chinese)
Memo
- Memo:
-
Biography: Chen Xiaoqiang(1973—), male, graduate, lecturer, cxq-se@yahoo.com.cn.
Citation: Chen Xiaoqiang, Liu Qiwei, Zhu Jun. Measurement and theoretical analysis of solar temperature field in steel-concrete composite girder[J]. Journal of Southeast University(English Edition), 2009, 25(4): 513-517.