This thesis applies the load-transfer function method into the analysis of deformation of uplift piles,and that is to set up a hyperbolic model of load-transfer formulations,and uses the boundary conditions and continuity conditions to figure out the load-displacement relationships of uplift piles.

Based on rational constitutive model of steel and core concrete,load-deformation relationship curves of hollow steel tube columns filled with steel-reinforced concrete subjected to axial-compression are simulated by the ABAQUS software,and the simulated curves agree well with the experimental results.