Features

  • Response spectra in accordance with different standards
  • The following standards are implemented:
    • European Union | Flag EN 1998-1:2010 + A1:2013 (European Union)
    • DE | Flag DIN 4149:1981-04 (Germany)
    • DE | Flag DIN 4149:2005-04 (Germany)
    • EN-US | Flag IBC 2000 (USA)
    • EN-US | Flag IBC 2009-ASCE/SEI 7-05 (USA)
    • EN-US | Flag IBC 2012/15 - ASCE/SEI 7-10 (USA)
    • EN-US | Flag IBC 2018 - ASCE/SEI 7-16 (USA)
    • Austria | Flag ÖNORM B 4015:2007-02 (Austria)
    • Italy Flag NTC 2018 (Italy)
    • Spain Flag NCSE-02 (Spain)
    • Switzerland | Flag SIA 261/1:2003 (Switzerland)
    • Switzerland | Flag SIA 261/1:2014 (Switzerland)
    • Switzerland | Flag SIA 261/1: 2020 (Switzerland)
    • Turkey O.G. 23089 + OG 23390 (Turkey)
    • South Africa Flag SANS 10160-4 2010 (South Africa)
    • Saudi Arabia SBC 301:2007 (Saudi Arabia)
    • People's Republic of China | Flag GB 50011 - 2001 (China)
    • People's Republic of China | Flag GB 50011 - 2010 (China)
    • Canada | Flag NBC 2015 (Canada)
    • Algeria DTR BC 2-48 (Algeria)
    • Algeria DTR RPA99 (Algeria)
    • Mexico Flag CFE Sismo 08 (Mexico)
    • Argentina CIRSOC 103 (Argentina)
    • Colombia NSR - 10 (Colombia)
    • India | Flag IS 1893:2002 (India)
    • Australia | Flag AS1170.4 (Australia)
    • Chile NCh 433 1996 (Chile)
  • The following National Annexes according to EN 1998‑1 are available:
    • DE | Flag DIN EN 1998-1/NA:2011-01 (Germany)
    • Austria | Flag ÖNORM EN 1991-1-1:2011-09 (Austria)
    • Belgium Flag NBN - ENV 1998-1-1: 2002 NAD-E/N/F (Belgium)
    • CS | Flag ČSN EN 1998-1/NA:2007 (Czech Republic)
    • France Flag NF EN 1998-1-1/NA:2014-09 (France)
    • Italy Flag UNI-EN 1991-1-1/NA:2007 (Italy)
    • Portugal Flag NP EN 1998-1/NA:2009 (Portugal)
    • Romania Flag SR EN 1998-1/NA:2004 (Romania)
    • Slovakia Flag STN EN 1998-1/NA:2008 (Slovakia)
    • Slovenia Flag SIST EN 1998-1:2005/A101:2006 (Slovenia)
    • Cyprus Flag CYS EN 1998-1/NA:2004 (Cyprus)
    • EN-GB | Flag NA to BS EN 1998-1:2004:2008 (United Kingdom)
    • NS-EN 1998-1:2004 + A1:2013/NA:2014 (Norway)
  • User-defined response spectra
  • Direction-relative response spectrum approach
  • Relevant mode shapes for the response spectrum can be selected manually or automatically (5% rule from EC 8 can be applied)
  • Generated equivalent static loads are exported to load cases, separately for each modal contribution and separately for each direction
  • Result combinations by modal superposition (SRSS and CQC rule) and direction superposition (SRSS or 100% / 30% rule)
  • Signed results based on the dominant eigenmode can be displayed

RF-/DYNAM Pro - Equivalent Loads | Input

The input parameters relevant for the selected standards are suggested by the program in accordance with the rules. Furthermore, it is possible to enter response spectra manually. Dynamic load cases define a direction of response spectra effects and the structure eigenvalues that are relevant for the analysis.

RF-/DYNAM Pro - Equivalent Loads | Calculation

Equivalent static loads are generated separately for each relevant eigenvalue and excitation direction. They are exported to static load cases to perform the linear static analysis in RFEM/RSTAB.

RF-/DYNAM Pro - Equivalent Loads | Results

The equivalent load analysis calculation generates load cases and result combinations. The load cases include the generated equivalent loads, which are subsequently superimposed in result combinations. First, the modal contributions are superimposed with the SRSS or CQC rule. Signed results based on the dominant mode shape are possible.

Afterwards, the directional components of earthquake actions are combined with the SRSS or the 100% / 30% rule.

Pushover analysis in RFEM

In RFEM, it is possible to determine pushover curves (also called capacity curves) and export them to Excel.

With the RF-DYNAM Pro - Equivalent Loads add-on module, it is possible to generate load distribution automatically in accordance with a mode shape and export it as a load case to RFEM.