Nonlinear springs represent the stiffness of the soil around the foundation of the structure. The behavior of these springs is nonlinear because the stiffness of the soil changes as the load on the structure increases. The springs are typically placed at the base of the foundation and are connected to the foundation and the surrounding soil.
In OpenBrIM, nonlinear springs are used to model soil-structure interaction (SSI). These springs can be added to the model to simulate the behavior of the soil around the foundation. The stiffness of the springs can be adjusted based on the soil properties and the loading conditions, allowing the engineer to more accurately model the response of the structure to the soil and optimize the design accordingly.
Steps
Step 1: Navigate to Pile Construction
Navigate to Loading > Construction > Substructure > Pile in the tree view.
Pile construction navigation
Step 2: Select Construction Stage
Click the three-dot icon on the Stage cell and select SubstrConstStage.
Stage selection
Step 3: Pick Substructures Above
Click the three-dot icon on the Substructures Above cell and select Pick.
Pick substructures
Step 4: Select Foundations
Select all Foundations that were previously defined from the 3D View.
Select foundations
Step 5: Complete Selection
Click Done to complete the selection.
Verification
All piles should be assigned to the SubstrConstStage with their respective foundations.
