A simplified analytical method to evaluate the seismic pressure on plane lock gates

摘要: Abstract This paper presents a meshless method to perform the seismic analysis of plane lock gate. The approach is based on analytical derivation total hydrodynamic pressure, with due consideration for gate flexibility. In particular, flexibility and fluid–structure interaction are taken into account in calculation equivalent force that has be applied model action water. To reach this goal, Rayleigh–Ritz first used determine modal properties dry structure. achieved by using mode shapes extracted from beam theory as generating functions. results obtained way validated comparison numerical solutions. second step consists performing dynamic deriving weak form equilibrium equation. Based Galerkin method, matrix formulation derived Newmark integration scheme evaluation pressure during earthquake. Here again, non-linear finite element simulations including water modeling carried out corroborate developments. addition, lumped-mass also investigated criteria proposed check its applicability. Finally, some concluding remarks given more easily gates.