The bond behavior between corroded steel bars(theoretical corrosion rate is 2%,4%and 6%)and concrete under 25 reciprocating load(25%,45%and 65%ultimate load)has been investigated by using beam specimens.The test results show that reinforced concrete beam speeimens showed splitting damage the slip between steel bar and concrete was basically completed within the first ten reciprocating load cycles,the slip value difference before and after loading of the specimen is gradually reduced,and the amount of slip basically no longer increased.When the load level of the specimen kept constant,the slip between the steel bar and concrete at the loading end and the free end of the specimen increased with the increase of the corrosion rate;while the corrosion rate of the control steel bar remains unchanged,the slip between steel bar and concrete at the loading end and the free end increased significantly with the increase of the load level.The impact of the reciprocating load level on the slip of the specimen was more obvious than that of steel corrosion.
bond behaviorreinforced concretereciprocating loadaccelerated corrosioncorrosion ratiobeam specimenslip
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维普
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