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International Journal of Frontiers in Engineering Technology, 2022, 4(10); doi: 10.25236/IJFET.2022.041007.

Study on strengthening effect of prestressed cfrp sheet on steel box girder


Xiaodong Liu1, Dongxiang Liu2, Hanxiao Wang1

Corresponding Author:
Xiaodong Liu

1College of School of Architecture and Engineering, Chongqing University of Science and Technology, Chongqing, China

2College of Chemical Science and Engineering, Yunnan University, Yunan, China


The finite element software Abaqus is used to simulate the reinforcement of the steel box girder with CFRP sheets. The wave anchor anchorage system clamps the carbon fiber (CFRP) sheets and anchors them in the tensile zone at the bottom of the steel box girder. The temperature method is used to simulate the prestress applied to the steel box girder in the actual project, and the stress of the steel box girder in the project example is compared to analyze the mid span deflection of the steel box girder; With the change of stress and strain, the mid span deflection of prestressed CFRP sheet to steel box girder is analyzed; Stress; The improvement of strain sum shows that prestressed CFRP has good reinforcement effect for flexural members.


Prestress, CFRP, Steel box girder, Abaqus, Reinforcement effect

Cite This Paper

Xiaodong Liu, Dongxiang Liu, Hanxiao Wang. Study on strengthening effect of prestressed cfrp sheet on steel box girder. International Journal of Frontiers in Engineering Technology (2022), Vol. 4, Issue 10: 41-46. https://doi.org/10.25236/IJFET.2022.041007.


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