Vibrations may occur either manmade or natural. With the PLAXIS Dynamic analysis module you can analyse the effects of vibrations in the soil. If the loads are powerful, as in earthquakes, they may cause severe damages. Soil and structures are often subjected not only to static loads due to constructions in and on the ground surface but also to dynamic loads. 5-5 5.4 Initial stresses and stress increments. 5-2 5.2.1 Wave velocities.5-3 5.2.2 Critical time step.5-4 5.3 Model boundaries. Theory.5-1 5.1 Basic equation dynamic behaviour. 4-11 4.6 Pulse load on a multi layer system. 4-7 4.5 Surface waves: Comparison with boundary elements. Validation and verification of the dynamic module.4-1 4.1 One-dimensional wave propagation.4-1 4.2 Simply supported beam.4-3 4.3 Determination of the velocity of the Rayleigh wave.4-5 iĭYNAMICS MANUAL 4.4 Lamb’s problem. 3-12 3.2.7 Load multiplier time series from data file.3-13 3.2.8 Modelling block loads.3-15 3.3 Output. 3-8 3.2.2 Dynamic analysis parameters.3-8 3.2.3 Iterative procedure manual setting. 3-3 3.1.4 External loads and Prescribed displacements.3-3 3.1.5 Model parameters.3-5 3.2 Calculations. 3-1 3.1 Input.3-1 3.1.1 General settings.3-2 3.1.2 Loads and Boundary conditions.3-3 3.1.3 Absorbent boundaries. 2-14 2.3 Building subjected to an earthquake.
2-7 2.2 Pile driving.2-9 2.2.1 Initial conditions.
2-1 2.1 Dynamic analysis of a generator on an elastic foundation.2-1 2.1.1 Input. Introduction.1-1 1.1 About this manual.1-1 1.2 Dynamic loading features.