Experimental Study on Coupling Bond Properties of Corroded Reinforced Concrete at High Temperature
In order to investigate the change of bonding properties under the coupling effect of high temperature cor-rosion,48 central drawing specimens were tested under high temperature.The test results show that the bonding prop-erty decreases with the increase of temperature grade,and decreases with the increase of corrosion rate.When the tem-perature is 700 ℃ and the corrosion rate is 6％,the bond strength of the specimen decreases by 53.8％.Finally,based on the test data,the bonding slip constitutive equation under the coupling action of high-temperature corrosion is estab-lished,and the evaluation law of the bonding performance of the service structure under fire is obtained.
high temperature actioncorrosion of steel barsbond slipconstitutive model
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