Study on Deformation of Steel Cylinder Machine Structure in Wave Loads

Abstract:
Taking the large-diameter thin-walled steel cylinder enclosure structure of the Hong Kong Macao Zhuhai Bridge as the research object, using the ABAQUS numerical simulation method, establishing a three-dimensional elastic finite element model of steel cylinders, the steel cylinder structure, and the surroundings are a sticky foundation, using the ABAQUS the user material subroutine UMAT interface is provided, and the most widely used Hardin-Drnevich equivalent linear viscoelastic model is used for the viscous land base dynamic constitutive model. Based on the ABAQUS finite element platform, the simulated wave loop load is used to simplify the regular double-phase simple harmonic analog wavy cycle load. The structural effects of steel cylindrical thin-walled structures, and studied the power response of steel cylinders in the adhesive base basis by changing the amplitude of the steel cylinders on the position of the sea level and the magnitude of the wavy load. The dynamic response of steel cylinder embedded in clay foundation is studied, such as displacement and rotation angle of steel cylinder. The research shows that the wave cyclic load has an important influence on the protective structure of large-diameter thin-walled steel cylinder located in clay foundation. Under different wave loads, the displacement and corners of the steel cylinders have a certain degree of change, and along with the sea level position change, the deformation of the steel cylinder also exhibits a certain change.