Abstract
The chapter discusses the constitutive relationship of bondslip between steel and concrete in steel-reinforced concrete structures (SRC structures). Based on the experimental study of bond-slip behavior between steel shape and concrete encasement, the failure modalities of specimens are analyzed. The distributions of bond stress and slip along the embedment length of steel shape and concrete interface, and their equations are provided in the chapter. In the light of the elasticity and interface mechanics, the bond-slip mechanism and the relationship of stresses on the interface are deduced. According to the load-slip curves at the loading end of specimens, a typical bond-slip curve is obtained in the chapter. To provide the accurate bond-slip relationship, the equations of stress of steel shape, bond stress, and relatively slip are deduced. The curves of local bond-slip along the embedment are given in the chapter. Based on the law of local bond-slip obtained in the experimental study, the unified constitutive relationships of bond-slip between steel shape and concrete encasement are proposed, and the position functions that reflect the different embedment position are provided in the chapter.
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