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RF-COMBI 4.xx

Generation of Load Groups
and Load Combinations for RFEM Cases 
The add-on module RF-COMBI for RFEM generates load groups and load combinations for various constellations of load cases.
New generations of codes require to analyze multiple load combinations for the ultimate limit state design and the serviceability limit state design. For large spatial structures, it is a difficult, error-prone and time-consuming job to compose all the combinations manually. RF-COMBI automates this procedure.
Program Features

  • Generation of load groups for non-linear analyses (including imperfections)
  • Generation of load combinations for linear analyses
  • The following codes and standards are supported:
    - European: EN 1990, including relevant National Annexes (Eurocode),
      EN 1995 (Eurocode 5) 
    - American: ASCE 7, ACI 318-08
    - Canadian: CAN/CSA
    - Indian: IS 800
    - German: DIN 1055-100, DIN 1052: 2004-08, DIN 18800
  • Classification of load cases as 'Alternative', which means mutually exclusive
  • Automatic reduction of generated load groups by the preliminary analysis of extreme values for linear analysis results
  • Possibility to define imperfection-type load cases depending on selected ordinary load cases
  • Possibility to enter and save user-defined coefficients in addition to the default values
  • Two ways of ordering the generation results:
    - Results by actions according to the definition introduced in the relevant
      code for an easy check
    - Results by load groups/combinations according to the layout of the Data 
      navigator in RFEM
  • Synoptic summary of results, including applied coefficients and information about actions and load cases
Input

The add-on module RF-COMBI is integrated in the RFEM program. RF-COMBI imports load cases that have been defined in RFEM and divides them into two categories. The first category includes ordinary load cases and the second one includes load cases with imperfections.
RF-COMBI defines code-compliant actions and allocates RFEM load cases to them. Then, all considered load groups and load combinations are generated according to a selected code.
Consequently, these load groups and load combinations can be exported to RFEM for the further analysis.
It is not always necessary to consider all generated load groups or load combinations. Thus, they can be reduced automatically or manually before the export to RFEM. The calculation time in RFEM will be considerably shorter.
Table 1.1 General Data - Generation of Load Groups According to American Standard ACI 318-08
 
Analysis and Results

To extend the module application range, American, Canadian, and Indian standards have been newly implemented.
The EN 1990 code requires the ultimate limit state design and the serviceability limit state design. The ultimate limit state is analyzed in four design situations. The serviceability limit state occurs in three design situations.
RF-COMBI has two results tables. In the first table, results are diplayed by actions, the same way like definition of actions in codes. In the second table, generated load groups or load combinations are listed by load cases.
The output of numeric results is possible in the RFEM printout report.
Generated Load Combinations in RFEM Navigator and Graphical Display of Results
 
EC1 - Coefficients: Partial Safety Coefficients EC1 - Coefficients: Combination Coefficients Table 2.1 Load Groups by Actions - Results According to American Standard ACI 318-08 Table 2.1 Load Combinations by Actions - According to EN 1995

EC1 - Coefficients: Partial Safety Coefficients

EC1 - Coefficients: Combination Coefficients

Table 2.1 Load Groups by Actions - Results According to American Standard ACI 318-08

Table 2.1 Load Combinations by Actions - According to EN 1995
Table 2.2 Load Combinations - According to German DIN 1055-100 Table 2.3 Load Groups - Reduced - According to Indian Standard IS 800 Export of Load Groups and Load Combinations to RFEM Load Groups and Load Combinations Appear in RFEM Navigator

Table 2.2 Load Combinations - According to German DIN 1055-100

Table 2.3 Load Groups - Reduced - According to Indian Standard IS 800

Export of Load Groups and Load Combinations to RFEM

Load Groups and Load Combinations Appear in RFEM Navigator

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Note

You can find more information about RF-COMBI here:

list image Manual (PDF / 2.29 MB)
list image Hotline
list image Training

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Price Information

Net prices in €
1st license
RF-COMBI 650.00
Additional license
RF-COMBI 292.50
list image Pricelist
Table 1.1 General Data - Generation of Load Combinations According to American Standard ASCE 7
Table 1.1 General Data - Generation of Load Combinations According to American Standard ASCE 7
Table 1.2 Load Cases in Actions - Example According to EN 1990
Table 1.2 Load Cases in Actions - Example According to EN 1990
Table 1.3 Actions in Action Categories According to EN 1990 CEN
Table 1.3 Actions in Action Categories According to EN 1990 CEN
Table 1.4 Imperfections - Check Boxes for Reduction of Load Groups
Table 1.4 Imperfections - Check Boxes for Reduction of Load Groups
Table 2.2 Load Groups - Results According to ASCE 7
Table 2.2 Load Groups - Results According to ASCE 7
RF-COMBI Results in RFEM Printout Report
RF-COMBI Results in RFEM Printout Report