Hello Everyone,
I am working on Plaxis 3D to model a Combined pile raft system. I want to model pile integrity test, for which i need to give an impact on the raft using a stack hammer. So, how to model this impact load on the raft in Plaxis which is a gentle tap from some height just like a hammer. Please do respond. Thanks for your kind response.
Hello Priyam,
Impact driving simulated by discrete hammer blows, which are applied to the pile, typically has an idealised load curve, as shown in the example below.
This requires that you run a dynamic analysis and apply a dynamic load, which you can define on the basis of input time-dependent multipliers.To create the multipliers of the dynamic load:1. In the Model explorer expand the Attributes library subtree.2. Right-click the Dynamic multipliers subtree and select the Edit option from the appearing menu. The Multipliers window pops up.3. Click the Load multipliers tab.4. Click Add button to introduce a multiplier for the loads.5. Define a signal using the "Table" option.6. In the Selection explorer, under DynSurfaceLoad_1 specify the components of the load as (0 0 -1).7. Click Multiplierz in the dynamic load subtree and select the LoadMultiplier_1 option from the appearing menu.
For more information, please refer to PLAXIS 3D Tutorial 08: Dynamic analysis of a generator on an elastic foundation