The Experimental and Theoretical Research on Creep Effect of Large Prestressed Concrete Box Girder

Ji Xin Yang; Pei Liu; Ming Chao Yang

doi:10.4028/www.scientific.net/AMM.501-504.1199

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504The Experimental and Theoretical Research on Creep...

The Experimental and Theoretical Research on Creep Effect of Large Prestressed Concrete Box Girder

Abstract:

The concrete creep effect is a peculiar phenomenon of concrete material, it has a significant effect on the deformation and internal force redistribution of concrete member, besides, it may cause the loss of prestress , it may have serious consequences especially on complex structure such as long-span bridges. So it must be considered in bridge design and construction. Based on the subject of CYSG deformation monitoring and 32m precast PC simply supported box girder, the method of creep test has been researched and determined in this paper firstly, then the laws of the development of the creep has been summarized, and the influencing factors of concrete creep has been concluded. Using the finite element software ANSYS and the APDL language, theoretical analysis of creep has been carried on in this paper. In conclusion, This paper analyzed the influencing factors of concrete creep and provided the basis for long-term deformation control of creep by comparing the theoretical results with the experimental data.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

1199-1203

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.1199

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Online since:

January 2014

Authors:

Ji Xin Yang, Pei Liu, Ming Chao Yang

Keywords:

Creep Effect, Creep Test, Finite Element, PC Box Girder

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References

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