BEHAVIOUR OF ARCH DAMS UNDER STATIC AND DYNAMIC LOADS

Abstract

The behaviour of cylindrical arch dams, has been studied under static and dynamic type of loads. Different geometrical parameters have been varied. In addit4 on, an actual profile of a dam i n a non-symmetrical valley has also been analysed. in all cases deflections and stresses have been worked out. Finite element technique has been used in the analysts.. In the static analysis hydrostatic and dead load have been considered. Earthquake forces have been represented equivalent static lateral loads having three different distribution along the height namely, (i.) Rectangular, (i;) Inverted tri-angular, and (iii) Inverted parabolic. The fundamental frequencies and corresponding mode shapes have been calculated for the two cases.