Mechanical Property Study of Corroded Steel Beams Strengthened with Prestressed CFRP Sheets

Abstract:

Steel structure, which has higher bearing capacity, smaller sectional dimension, convenient construction and economical investment, can be abroad used in engineering. However, due to a lot of reasons, the gradual expansion and convergence of the micro-defects lead to the macro deterioration of the mechanical properties of materials. By experimental research, theoretical analysis and computer simulation, the mechanical properties of the corroded steel beams strengthened with (prestressed) CFRP sheets were studied. According to the mechanical characteristics of corrosive steel beams and corrosive composite steel-concrete beams strengthened with prestressed CFRP sheets. By using ABAQUS finite element program, the calculation model of prestressed CFRP sheets strengthened corrosion steel beams and corrosion steel-concrete composite beams is established, and the working mechanism is studied. The calculation results show that: the bearing capacity of strengthened beams increase with the increasing of the initial prestress and CFRP sheets thickness, and decrease with the increase of steel corrosion degrees.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 955-958
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.955
• Online since: November 2012
• Authors: Jun Hua Huo, Bo Pang
• Keywords: ABAQUS Finite Element Analysis, CFRP Sheets, Corroded, Steel Beam

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