Research Article

Numerical Analysis on the Bending Capacity of the Concrete-Filled Micro-Steel-Tube Piles

Table 2

Numerical simulation scheme.

Influencing factorMember numberConcrete strength gradeD (mm)t (mm)f y (MPa)

Concrete strength gradeSC30C301687235
SC50C50
SC70C70

Wall thickness of steel tubeST1C301685235
ST26
ST37

External diameter of steel tubePD1C301407235
PD2168
PD3219

Yield strength of steelQ235C301687235
Q345345
Q390390