RF-PUNCH Pro Add-on Module for RFEM

Product Description

  • Reinforced Concrete Structures

Punching Shear Design of Foundations and Slabs with Nodal and Line Supports


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The RF-PUNCH Pro add‑on module performs the design of punching shear resistance for singularly or linearly supported surfaces. The module automatically determines the governing punching load from the specified load. Also, it is possible to apply a concentrated punching load to a slab manually.

With RF‑PUNCH Pro, you can quickly and efficiently perform punching shear design according to the following standard:

  1. Features

    • Import of relevant information and results from RFEM
    • Integrated editable material and cross-section library
    • The module extension EC2 for RFEM enables the design of reinforced concrete members according to EN 1992‑1‑1:2004 (Eurocode 2) and the following National Annexes:
      • Deutschland DIN EN 1992-1-1/NA/A1:2015-12 (Germany)
      • ÖNORM B 1992-1-1:2018-01 (Austria)
      •  NBN EN 1992-1-1 ANB:2010 (Belgium)
      •  BDS EN 1992-1-1:2005/NA:2011 (Bulgaria)
      • EN 1992-1-1 DK NA:2013 (Denmark)
      • NF EN 1992-1-1/NA:2016-03 (France)
      • SFS EN 1992-1-1/NA:2007-10 (Finland)
      • UNI EN 1992-1-1/NA:2007-07 (Italy)
      • Lettland LVS EN 1992-1-1:2005/NA:2014 (Latvia)
      •  LST EN 1992-1-1:2005/NA:2011 (Lithuania)
      • MS EN 1992-1-1:2010 (Malaysia)
      • NEN-EN 1992-1-1 + C2:2011/NB:2016 (Netherlands)
      • NS EN 1992-1-1:2004-NA:2008 (Norway)
      •  PN EN 1992-1-1/NA:2010 (Poland)
      • NP EN 1992-1-1/NA:2010-02 (Portugal)
      •  SR EN 1992-1-1:2004/NA:2008 (Romania)
      • SS EN 1992-1-1/NA:2008 (Sweden)
      • SS EN 1992-1-1/NA:2008-06 (Singapore)
      • STN EN 1992-1-1/NA:2008-06 (Slovakia)
      • SIST EN 1992-1-1:2005/A101:2006 (Slovenia)
      • UNE EN 1992-1-1/NA:2013 (Spain)
      • CSN EN 1992-1-1/NA:2016-05 (Czech Republic)
      • BS EN 1992-1-1:2004/NA:2005 (United Kingdom)
      • Weißrussland CPM EN 1992-1-1:2009 (Belarus)
      • CYS EN 1992-1-1:2004/NA:2009 (Cyprus)
    In addition to the National Annexes (NA) listed above, you can define a specific NA, applying user‑defined limit values and parameters.
    • Complete and reasonable presetting of input parameters
    • Punching shear design on columns, wall ends, and wall corners
    • Optional arrangement of an enlarged column head
    • Automatic recognition of the position of the punching node from the RFEM model
    • Detection of curves or splines as boundary of the control perimeter
    • Automatic consideration of all slab openings defined on the RFEM model
    • Structure and graphical display of the control perimeter before calculation starts
    • Qualitative determination of punching shear reinforcement
    • Optional design with unsmoothed shear stress along the control perimeter that corresponds to the actual shear stress distribution on the FE model
    • Determination of the load increment factor β by full plastic shear distribution as constant factors according to EN 1992‑1‑1, Chap. 6.4.3 (3), based on EN 1992‑1‑1, Fig. 6.21N or by user‑defined specification
    • Integration of design software by Halfen, a producer of shear rails 
    • Numerical and graphical display of results (3D, 2D, and in sections)
    • Punching shear design with or without punching shear reinforcement
    • Optional consideration of minimum moments according to EN 1992‑1‑1 when determining longitudinal reinforcement
    • Design or analysis of longitudinal reinforcement
    • Complete integration of results in the RFEM printout report
  2. Input

    After opening the module, the materials and surface thicknesses defined in RFEM are preset. The nodes to be designed are recognized automatically. However, you can modify them manually.

    It is possible to consider openings in the area with risk of punching shear. The openings can be transferred from RFEM or specified only in RF‑PUNCH Pro so they do not effect the stiffnesses of the RFEM model.

    The parameters of the longitudinal reinforcement are the number and direction of the layers and the concrete cover, specified separately for the top and bottom of the slab on a surface-by-surface basis. The next input window allows you to define all additional details for nodes of punching shear. The module recognizes the position of the punching node and automatically sets whether the node is located in the center of the slab, on the slab edge, or in the slab corner.

    In addition, it is possible to set punching load, load increment factor β, and the existing longitudinal reinforcement. Optionally, the minimum moments can be activated for determining the required longitudinal reinforcement and enlarged column head.

    To facilitate orientation, a slab is always displayed with the corresponding node of punching shear. You can also open the design program by HALFEN, a German producer of shear rails. All RFEM data can be imported to this program for further easy and effective processing.

  3. Design

    RF-PUNCH Pro determines the punching load on the basis of a single load (from column / loading / nodal support) and of the smoothed and unsmoothed shear force distribution along the control perimeter. However, it is also possible to enter user‑defined specifications.

    Since the module is fully integrated in RFEM, all nodes of punching shear on the reference surface are known. Therefore, you can check for collision of the determined perimeters with those of the neighboring columns.

  4. Results

    After the calculation, the module displays clearly arranged tables including all result details to ensure traceability at any time. The provided and allowable shear stresses for the shear resistance design of a slab as well as various perimeters and reinforcement ratios are represented in detail. If necessary, a clarifying note is displayed.

    The next result window lists the required longitudinal or punching shear reinforcement of each analyzed node. An explanatory graphic is also available. All design results can be clearly displayed with values in the work window. Furthermore, you can add all result tables and graphics into the global printout report of RFEM, which guarantees coherent documentation.


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Online Training | English

Eurocode 2 | Concrete Structures According to DIN EN 1992-1-1

Online Training 26 January 2023 9:00 AM - 1:00 PM CET


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