Analysis of Time Effects in Steel and Concrete Composite Beams Considering Relative Slippage

Abstract:

The effects of creep and shrinkage of concrete is non-ignorable to strength of steel and concrete composite beams under sustained load, and the relative slippage should be considered for internal force. Time-dependent modulus method is presented, formulas of the stress and strain at any time are deduced considering creep, shrinkage and the relative slippage. The variational stress is analysed of the steel and concrete composite beams under sustained load.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 260-263
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.260
• Online since: January 2012
• Authors: Yuan Jun Yan, Li Ping Qin
• Keywords: Relative Slippage, Steel and Concrete Composite Beams, Stress and Strain, Time-Effect

References

[1] J. W. Wang, P. H. Long, Z. Y. Liu. Analysis of creep in composite beams [J]. Journal of highway and transportation research and development, 2004, 21(8): 38-41. (In Chinese)

[2] J. G. Nie, J. M. Shen, Y. S. Yuan. Simply supported steel-concrete composite beams with the general formula of the deformation calculation [J]. Engineering Mechanics, 1994, 11(1): 21-27. (In Chinese)

[3] R. I. Gilbert. Time effects in concrete structures [M]. Elsevier Science Publishers B.V., 1988.

[4] L. Zhou, Y. C. Chen. Creep and shrinkage [M]. Beijing: China Railway Press, 1994. (In Chinese)

[5] L. G. Wang. Steel and concrete composite structure theory and calculation [M]. Beijing: Science Press, 2005.