Model for Vertical Hyperthermic Temperature Gradient Distribution in Concrete Box Girder in China
American Journal of Civil Engineering
Volume 8, Issue 3, May 2020, Pages: 48-56
Received: May 1, 2020;
Accepted: May 15, 2020;
Published: May 18, 2020
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Ziying Liu, College of Civil Engineering, Northeast Forestry University, Harbin, China
Tianlai Yu, College of Civil Engineering, Northeast Forestry University, Harbin, China
The temperature field of concrete box girder under sunshine is an important factor to be considered in the design of bridge superstructure. Based on the meteorological parameters and the semi-empirical formula given by related bridge specifications, the vertical temperature gradient distribution model of prestressed concrete box girder was established using SPSS software. The amplitude of the temperature gradient model is calculated according to the theory of statistics. The index function model considering wind speed, solar radiation and temperature variation was obtained, and the method to determine the amplitude of vertical temperature gradient was summarized according to different building climate zones in China. The applicable conditions of the model are as follows: sunny and cloudless days with high radiation quantity should be selected; The selected months are generally from May to July, and June in extremely cold regions. It is verified that the calculated value fits well with the measured value by monitoring data of 3 real Bridges in different zones. The model of temperature gradient heating in warm areas was calculated. For the temperate climate regions without real bridge measured data, the recommended value of temperature gradient amplitude in this region is given after trial calculation. It explores the method of using only meteorological data without surveying and mapping, which can save a lot of manpower and material resources.
Model for Vertical Hyperthermic Temperature Gradient Distribution in Concrete Box Girder in China, American Journal of Civil Engineering.
Vol. 8, No. 3,
2020, pp. 48-56.
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
B. Hunt and N. Cooke (1975). “Thermal Calculations for Bridge Design,” Journal of the Structural Division, 176-178.
Wang J. F., Zhang J. T., Yang A. X. and Xu R. Q. (2020). “Control Measures for Thermal Effects During Placement of Span-Scale Girder Segments on Continuous Steel Box Girder Bridges,” Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 21 (4), 255-267.
Zhao R. D., Wang Y. B. (2016). “Studies on Temperature Field Boundary Conditions for Concrete Box-Girder Bridges Under Solar Radiation,” China Journal of Highway and Transport, 29 (7), 52-61.
Zhang L. L., Wu L. Q., Yang L. (2012) “Analysis of Temperature Field Of Concrete Box Girder And Secondary Development Of Program,” Journal of Convergence Information Technology, 7 (5), 254-262.
Jiang C. R., Ren, J. M. and Wang, Z. L. (2013). “Research of Temperature Field of Long Span Concrete Box Girder Bridge Caused by Solar Radiation,” Applied Mechanics and Materials, 256-259 (PART 1), 1635-1639
Liu X. F. (1985). “Temperature distribution of concrete bridge,” Journal Railway Engineering Society, 107-111.
Zhang, Y., Hu, Z. T., Jia, R. Z. (2006). “Temperature Gradient of Reinforced Concrete Continuous Curved Box Girder Bridge,” Journal Chang’an University, 26 (7), 58-62.
Nie Y. D. (2013). “Analysis of temperature field and temperature effect for long span concrete box girder bridges in cold regions,” Doctoral Dissertation of Harbin Institute of Technology, 66-70.
L. Roberis-Wollman, C. Cawrse, E Breen J. (2002). “Measurement of Thermal Gradients and Their Effects on Segmental Concrete Bridge,” Journal of Structural Engineering, 3 (7), 166-174.
N. Li D., A. Maes M. and H. Dilger (2008). “Evaluation of Temperature Data of Confederation Bridge: Thermal Loadingand Movement at Expansion Joint,” Proceeding of The ASCE: Structure Congress, 1 (120), 314-324.
Liu J., Liu Y. J., Bai, Y. X. and Liu G. L. (2020). “Regional Variation and Zoning of Temperature Gradient Pattern of Concrete Box Girder,” China Journal of Highway Transportation. 33 (3), 73-84.
Li G. Q., Wang C. A., Ye F. and Chen S. W. (2019). “Research on Temperature Field and Thermal Deformation of Steel Box Maglev Guideway Caused by Solar Radiation,” China Civil Engineering Journal. 52 (11), 45-55.
Sheng C. and Yu T. L. (2008). “Research and Temperature Effects on Continuous Rigid Frame Box Beam Bridge,” Forest Engineering. 24 (5), 49-96.
Cui X. Q., Feng. R. and Huang Y. (2010) “Study on Temperature Field of Concrete Box Girder Bridge by Solar Radiation,” Concrete, 6, 37-40.
Li H. J., Li, Z. and Wang Y. J., etc.(2005) “Research on Temperature Gradient of Concrete Box Girder of Continuous Rigid-Frame Bridge Named Aids to Navigation Bridge in Town Humen, Guangdong Province.” Journal Highway and Transportation Research and Development, 22 (5), 67-70.
China Meteorological Data Sharing Service System. (2009). “Daily value data sets of China radiation international exchange station” and “Daily value data sets of climatic resources of Chinese ground international exchange station”. http://cdc.cma.gov.cn.