EVALUATION ON ARCH DAMS CONSIDERING NONLINEAR BEHAVIOR OF TRANSVERSE JOINTS ON VIBRATION CHARACTERISTICS AND STATIC BEHAVIOR

Abstract

 Thin structures of the arch dams are influenced by the interaction of foundational rock and reservoir. In this research, transverse joints have been confirmed to open and slip. In each dam site, a dam body shape has wide variety shape, however that dam body shape effect on static behavior has not been clarified. In this paper, an analytical model considering the nonlinear characteristics of the transverse joints is built, and a symmetric and asymmetric model is modeled as the three dimensional models which have a dam body - foundational rock - reservoir system. In order to find out a vibration characteristics and resistance mechanism, each model is analyzed by the eigenvalue analysis and static behavior analysis.