混凝土单桩在轴向扰力作用下的混沌运动

CHAOTIC MOTION OF CONCRETE SINGLE PILES UNDER THE ACTION OF AXIAL FORCES

在考虑混凝土非线性本构关系的基础上 ,建立了混凝土单桩纵向振动的非线性动力方程。经研究发现本构关系为非线性的结构 ,在轴向扰力作用下其纵向振动也可能发生混沌运动。同时 。

On the base of considering the nonlinear constitution of concrete, the nonlinear dynamics equation of concrete single piles' longitudinal vibration is established. It's found that chaotic motion may possibly occur during longitudinal vibration under the action of axial forces, while the constitutive character of structure is nonlinear. The effects of force frequency on the region in which the chaotic motion of structure will occur are discussed and analyzed.