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[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()
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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
Keywords:
steel-concrete composite structure solar radiation temperature field experiment
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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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.
Last Update: 2009-12-20