Mechanical Properties Analysis of CFRP Pre-Stressed Section Continuous Thin-Walled Box Girder Bridge Models 22


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An externally pre-stressed continuous box girder bridge model is designed according to loading features of the continuous beam. The CFRP bars and steel strands are used to make two models for externally pre-stressed reinforcements Analysis of the two models under three different load stiffness and loss of prestress, through calculation and analysis, found that two kinds of prestressed concrete material model under three load deflection basic same, also almost the same change trend, prestressed RMS model than model 1, 2 but with the increase of load model 2 prestress loss is big. Analysis results of CFRP materials and application to provide the reference in the bridge.



Edited by:

Li Qiang




X. Z. Wang and C. X. Li, "Mechanical Properties Analysis of CFRP Pre-Stressed Section Continuous Thin-Walled Box Girder Bridge Models 22", Applied Mechanics and Materials, Vol. 624, pp. 592-595, 2014

Online since:

August 2014




* - Corresponding Author

[1] Guide for the Design and Construction of Concrete Reinforced With FRP Bars, ACI Committee 440, Revised January (2000).

[2] Qian Rui , Mao Weibin. Investigation and Application for Concrete Specimens Reinforced with FRP Reinforcing Bars in Foreign Countries, Jiangsu Construction, 2001, (1): 28-31.

[3] LI Chenguang,LIU Hang,DUAN Jianhua. Structure of external prestressing technology and engineering applications, China building industry press,Beijing, 2008. 1.

[4] YANG Li. Study on the Structural Behaviors of Externally Prestressed ConcreteThree-span Continuous Beams. Souhtwest Jiaotong University, 2005. 4.

[5] XU Dong。Design of External Prestressing in Bridges,China Communications Press,2008. 10.

[6] ZHU Hong, QIAN Yang. Mechanics Performance of FRP Tendons Used in Engineering Structure, Journal of Architecture and Civil Engineering, Vol . 23 No. 3, Sept . 2006, pp.26-31.

[7] DAI WanJiang . Theoretical Research on Behavior of Concrete Beam Reinforced with FRP Bar. Wuhan University of Technology 2007. 11.