关键词: 钢筋混凝土梁, 锈蚀, 电化学腐蚀, 承载力

Abstract:

The method of electrochemical corrosion was used to accelerate the reinforced concrete beams degeneration, and the corrosive degrees of rebars were studied with macro and quantitative methods. The corroded beams were loaded to study the mechanical property and bearing capacity. The test results indicated that the corrosion of reinforcing rebars have influences on the bearing capacity of beams, the severe corrosion of reinforcing rebars have evident influences on the stiffness of the beams, the inhibited effect of reinforcing rebars to the expansion of bending crack decreases with the increment of the corrosion.

Key words: reinforced concrete beam, corrosion, electrochemical corrosion, the bearing capacity