In this video, we’ll take a look at the modeling and analysis of a mat slab in RISAFoundation. We’ll specify design parameters and soil properties to be able to obtain reinforcement design and view soil pressure contour diagrams.
RISAFoundation v12 includes mat slab, concrete beam and pedestal design according to Eurocode 2. For more information, check out the video below.
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.
In RISAFoundation, you can add a vertical offset for slabs or beams. Traditionally, RISA uses centerline analysis which aligns all elements at their centerline. This is a common structural analysis assumption as the loads will get transferred to the centerline even if there is difference in the...
In RISAFoundation v8, you can add a shear splice between slabs so that it acts like a hinge. This is useful for modeling the effects of shear keys or dowel joints between slabs.
In RISAFoundation, the user has the ability to manually draw a single Design Cut anywhere on a slab. The Design Strips also automatically include Design Cuts which are used to determine the governing design forces in the Design Strip. For more detailed information on the specifics of Design Strip...
RISAFloor ES allows you to model concrete slabs of any thickness. However, there might be sections of the building that require a thicker slab. The icon is shown below and it will allow you to draw a Polygon or Rectangular shape.
In RISAFloor ES, you can quickly thicken the slab in the column strip area with the Drop Panel tool. The column strip is typically the area of highest demand so increasing the thickness may help optimize the concrete usage.
