What defines the dimensions "Length of Reinforcement" and "Width of Reinforcement" of the longitudinal reinforcement in RF‑PUNCH Pro? Is the anchorage length included?

Answer

RF-PUNCH Pro defines the required length of the longitudinal reinforcement or the width of the reinforcement as follows.

For the length of the longitudinal reinforcement:
  • Case 1 - No punching shear reinforcement required:
    Length of longitudinal reinforcement = 2*lw,crit + column width
  • Case 2 - Punching shear reinforcement required:
    Length of longitudinal reinforcement = 2*lw,out + column width
For the width of the longitudinal reinforcement, the following applies:
  • Case 1 - No punching shear reinforcement required:
    Width of reinforcement  = 6*d + column width
  • Case 2 - Punching shear reinforcement required:
    Width of reinforcement = maximum value from [(6*d + column width) OR (2*lw,out + column width)]
The add-on module does not calculate the anchorage length of the longitudinal reinforcement, and you have to take it into account additionally.

Keywords

Anchorage length Longitudinal reinforcement Reinforcement Punching Punching shear Punching shear design Width of reinforcement

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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