When should the punching load be determined with the (un)smoothed distribution of the shear forces at the critical perimeter?


There is no general recommendation for this.

For wall corners and wall ends, you can initially keep the default setting "Unsmoothed shear force over the critical perimeter."

After the calculation, you can graphically check the distribution of the shear force in the control perimeter.

Optionally, you can switch to "smoothed" (for example, when singularities occur).

Please note, however, that any singularities that may occur are also included in the beta calculation. It may also be necessary that the load increasing factor ß will be specified directly by the user.


Punching shears Punching load Perimeter Smoothed Punching



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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
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