Pure Effect of Temperature on Rectangular and Trapezoidal Box-Girder Bridges – A Finite Element Investigation

Rawaa Najm Abood; Khattab Saleem Abdul-Razzaq; Ali Kifah Kadhum

doi:10.24237/djes.2024.17111

Authors

Rawaa Najm Abood
rawaanagim22@gmail.com
Dpt. civil engineering, college of engineering university of diyala
Khattab Saleem Abdul-Razzaq Department of Civil Engineering, University of Diyala, 32001 Diyala, Iraq
Ali Kifah Kadhum Department of Civil Engineering, Yıldız Technical University, İstanbul, Turkey

Keywords:

Reinforced concrete, Box girders, Rectangular, Trapezoidal, Finite element, Thermal load, Temperature gradient, AASHTO

Abstract

Since the temperature distributions on concrete bridges are nonlinear, they lead to the self-equilibration of the stress distributions. To have a discussion about strains, deflection, and moment brought on by temperature changes. Three-dimensional finite element, Computers and Structures, Inc (CSI) Bridge finite element software is used to analyze 2 box girder bridge specimens; rectangle and trapezoidal cross section. The box girders were same in depth, span length, cross section details and material properties. These specimens were subjected to different temperatures values. They were tested under AASHTO thermal loading and temperature gradient specification. The finding showed that changing the temperatures at a constant rate during the days of the year, by increasing and decreasing, affects by a fixed amount all of the values of deflection, stresses, and moments, for each of the rectangular and trapezoidal sections by the same amount. Through the values of deflection, stresses and moments for both the trapezoidal section and the rectangular section, it can be seen that the trapezoidal section is affected by the temperature change in a lesser way than the rectangular section. That happened because the rectangular section is affected by the temperature gradient along the section in a greater proportion than the trapezoidal section by 16% in stresses and 56% in terms of deflection.

Downloads

Download data is not yet available.

References

M. Moravcik, and L. Krkoska," Thermal Effects on Box Girder Concrete Bridges," In Key Engineering Materials, Vol. 738, pp. 273-283, 2017. DOI: https://doi.org/10.4028/www.scientific.net/KEM.738.273

S. P. Chang and C. K. Im, "Thermal behaviour of composite box-girder bridges," Proceedings of the Institution of Civil Engineers-Structures and Buildings, 140(2), pp.117-126, 2000. DOI: https://doi.org/10.1680/stbu.2000.140.2.117

N. D. Quang, N. H, Cuong, M. D Loc and D. H. Tai, "Monitoring the Temperature Variations and Simulation of Their Effects on Stress Distribution in Concrete Box-Girder Bridges at The Service Stage," 2022.

Z. Song, J. Xiao and L. Shen, "On temperature gradients in high-performance concrete box girder under solar radiation," Advances in Structural Engineering, 15(3), pp. 399-415, 2012. DOI: https://doi.org/10.1260/1369-4332.15.3.399

M. J. Priestley, "Model study of a prestressed concrete box-girder bridge under thermal loading," Publication of: Intl Assoc Bridge & Struct Eng/Switz, 1972.

F. Faltus," Insegnamenti Da Trarsi Da Alcuni Dissesti Di Travate Da Ponte In Lamiera Irrigidita D'acciaio, 1975.

G. D. Zhou & T. H. Yi, "Thermal load in large-scale bridges: a state-of-the-art review,". International Journal of Distributed Sensor Networks, 9(12), pp. 217983, 2013.‏

J. Římal, and D. Šindler, "Comparison of temperature loadings of bridge girders,". Acta Polytechnica, 48(5), 2008.‏ DOI: https://doi.org/10.14311/1049

J. H. Emanuel and J. L. Hulsey, "Temperature distributions in composite bridges". Journal of the Structural Division, 104(1), pp. 65-78, 1978.‏ DOI: https://doi.org/10.1061/JSDEAG.0004850

J. B. Kennedy and M. H. Soliman, "Temperature distribution in composite bridges,". Journal of Structural Engineering, 113(3), pp. 475-482, 1987. ‏ DOI: https://doi.org/10.1061/(ASCE)0733-9445(1987)113:3(475)

E. Rojas, "Uniform temperature predictions and temperature gradient effects on I-girder and box girder concrete bridges,". Utah State University, 2014.

AASHTO. 2010. AASHTO LRFD Bridge design specifications. Washington, DC.

S. R. Abid, S. Alrebeh, N. Tayşi and M. Özakça, "Finite element thermal analysis of deep box-girders,". International Journal of Civil Engineering and Technology, vol. 7(1), pp. 128-139, 2016. ‏

AASHTO. 2017. AASHTO LRFD Bridge design specifications. Washington, DC.

K. Yang, Y. Ding, P. Sun, H. Zhao and F. Geng, "Modeling of temperature time-lag effect for concrete box-girder bridges,". Applied Sciences, 9(16), 3255, 2019. DOI: https://doi.org/10.3390/app9163255

Y.Lu, D. Li, K.Wang and S. Jia, "Study on solar radiation and the extreme thermal effect on concrete box girder bridges,". Applied sciences, 11(14), pp. 6332, 2021.

G. D. Zhou and T. H. Yi, "Thermal load in large-scale bridges: a state-of-the-art review,". International Journal of Distributed Sensor Networks, 9(12), 217983, 2013. DOI: https://doi.org/10.1155/2013/217983

CSI, S. (2017). CSI analysis reference manual. Computers & Structures.

CSI, C. (2015). SAP2000 (version 18) Integrated Solution for Structural Analysis and Design–CSI Analysis Reference Manual. Computers and Structures, Inc.

STN EN 1991-1-5: Actions on Structures. Part 1-5: General Actions - Thermalactions.

Y. Lu, D. Li, K. Wang and S. Jia, "Study on solar radiation and the extreme thermal effect on concrete box girder bridges'. Applied sciences, 11(14), pp. 6332, 2021. DOI: https://doi.org/10.3390/app11146332