Identification of Damage in Cantilever Retaining Wall Based on Flexibility-difference Mean Curvature

Abstract

To solve the problem of identification damage in a cantilever retaining wall, a damage identification method for such a wall, based on the flexibility-difference mean curvature, is proposed. The concept of mean curvature in differential geometry is introduced to calculate the flexibility-difference mean curvature. First, the flexibility difference matrix is calculated using the change in the modal flexibility matrix of the before and after damage in the retaining wall, and each column average value of the flexibility difference matrix is used as an element of the modal flexibility-difference column vector. Then, the flexibility-difference mean curvature (