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FAQ 002348 EN-US


Add-on Modules RF-PUNCH Pro

Why can not I specify a "favorable sole stress" for the punching shear design of a floor slab at a wall corner or at a wall end? Where is there a possible input option?


When designing a wall corner or a wall end in RF-PUNCH Pro according to DIN EN 1992-1-1, you do not have to enter the counteracting soil pressure separately.

The module determines the punching load for the design at a wall corner or a wall end from the integration of shear forces in the critical perimeter.
Thus, the part of the soil pressure within the critical perimeter is not used for the determination of the punching force anyway, so it is not necessary to deduct it separately.
The situation is different if you analyze the punching of a single column.
Supb intersection standard force is applied for the punching load by default. In this case, you can specify a soil pressure under the floor or foundation slab. You can find the input option in Table 1.5 of the RF-PUNCH Pro add-on module.
The size of the area load to be subtracted can be determined in RFEM by evaluating the contact stress σzdetermined from the governing load case or the governing combination and entered manually in the module in window 1.5.


PUNCH PUNCH Pro Soil pressure Contact stresses Sigma z Wall corner Wall end Punching through

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RFEM Concrete Structures
RF-PUNCH Pro 5.xx

Add-on Module

Punching shear design of foundations and slabs with nodal and line supports

Price of First License
760.00 USD