A Research of Src Bond-slip Sonstitutive

In this paper,according to domestic and foreign the experimental researches,which on bond-slip behaviors of SRC structures.The distribution mode of bond stress and slip along embedment length of steel and concrete interface are studied,the various factors influencing the influencing the bond strength are analyzed,as well as the bond-slip relationship between bond force and slip are also analyzed.At last,the SRC bond-slip constitutive equations are studied.A new second polynomial function for later concrete filled steel tube was established,with the constitutive relation establish unified formula lay the foundation.