Study on Prediction Model of Shrinkage and Creep of Prestressed Concrete Beam in Passenger Dedicated Line

Abstract:

To improve the calculation precision of deformation in prestressed concrete bridge in passenger dedicated line and accurately predict the development of shrinkage and creep in bridge, a universal applicable modified model was put forward in this paper based on ACI 209R(1992) shrinkage and creep model. In the modified model, three influence factors-slump, strength and reinforcement - are corrected. And the modified model results were compared with the experimental results. It shows that the modified model can more accurately predict the development of shrinkage and creep of high-speed railway bridge and better accord with the law of it.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 3998-4002
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.3998
• Online since: May 2011
• Authors: Jun Li Luo, Zhi Sheng Xu, Jun Li, Ji Hao Yang
• Keywords: Passenger Dedicated Line, Prediction Model, Prestressed Concrete Beam, Shrinkage and Creep

References

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[4] Fundamental Code for Design on Railway Bridge and Culvert TB10002.1-2005China Railway Publish House, Beijing, (2005)

[5] Hu Di, Chen Zhengqing: Experimental research on the deformations for shrinkage and creep of beams in prestressed concrete bridge. China Civil Engineering Journal, Vol.36(8)(2003), p.80