On hydrodynamic earthquake effects

Abstract

This study deals with the hydrodynamic effect of horizontal earthquake action. The theory is developed assuming harmonic motion, also taking the compressibility of the water into consideration. The possibility of resonance is discussed. Solutions are deduced for the most common types of hydraulic vessels. The solutions contain expressions both for the dynamic water pressure and for the displacements in the fluid. The dynamic water pressure on the walls is calculated, and the result presented in diagrams.