Ensuring Your Slab is Fully Supported by Piles in RISAFoundation A common mistake when modeling pile-supported slabs in RISAFoundation is forgetting to zero out the soil properties. By default, RISAFoundation assigns a soil definition to all slabs, which introduces soil springs into the model. If...
In RISAFoundation, the Allowable Soil Bearing value is controlled by the Soil Region. This value is always taken as a Gross allowable soil pressure by default.
RISAFoundation has the ability to display the enveloped contour diagram results for soil pressure. The graphical display of enveloped soil pressures is advantageous because it allows users to quickly identify the degree of influence the loads and slab geometry have on the soil.
RISAFoundation can apply soil overburden to a mat slab to account for the weight of the soil above the foundation. Simply enter a Soil Overburden pressure value for your foundation design in the Slabs spreadsheet. The soil overburden load is utilized to help the mat slab resist overturning during...
RISAFoundation includes the added ability to enter a passive pressure for slabs. The passive pressure represents soil pressure along the perimeter of the slab and will contribute to the sliding resistance of the slab.
With Pile Design in RISAFoundation, you have the ability to define the default soil properties for the entire model. But also the Soil Definitions spreadsheet gives you control over all the soil property layers in one location.
While RISAFoundation has a Default soil properties (Subgrade Modulus and Allowable Bearing), it is possible to create regions of varying soil properties.
RISAFoundation has the capability to report soil bearing pressures, and check them against allowable pressures.
