FAQ 004164 EN

Helpful Questions & Answers

  • Frequently Asked Questions (FAQs)

Is it possible to perform stability analyses on reinforced concrete structures by means of RF‑STABILITY?

Answer

Since concrete has a nonlinear material behavior that can only be simulated with the CONCRETE NL module, it is not possible to analyze it by using the RF‑STABILITY add-on module.

The use of another material model such as isotropic linear elastic or isotropic plastic would not represent the crack formation correctly, and the results are therefore not usable.

The stability analysis on columns can be performed with RF‑CONCRETE Columns or RF‑CONCRETE NL. You can find a small example under Downloads.

This example includes the design of a column by the RF‑CONCRETE Columns add-on module. Make sure that the calculation of the internal forces in RFEM is performed according to the geometrically linear analysis and that no imperfections are required because the method used in the add-on module takes them into account.

The example also includes the design with RF‑CONCRETE NL. Here, it is also necessary to calculate according to the second-order analysis and it requires the imperfections in the form of inclinations. For better comparability, the layout of the longitudinal reinforcement was aligned with the result from RF‑CONCRETE Columns, as shown in Figure 01 and Figure 02. Since the reinforcement is optimized by the module after a new calculation, the desired reinforcement was saved as a template (see the red arrow).

Keywords

Stability Buckling Column Concrete Reinforced concrete

Downloads

Write Comment...

Write Comment...

  • Views 335x
  • Updated 5 April 2021

Contact us

Contact Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0

info@dlubal.com

Online Training | English

RFEM | Structural dynamics and earthquake design according to EC 8

Online Training 11 August 2021 8:30 AM - 12:30 PM CEST

Online-Schulungen | English

RFEM for Students | USA

Online Training 11 August 2021 1:00 PM - 4:00 PM EDT

Online Training | English

Eurocode 3 | Steel structures according to DIN EN 1993-1-1

Online Training 25 August 2021 8:30 AM - 12:30 PM CEST

Online Training | English

Eurocode 5 | Timber structures according to DIN EN 1995-1-1

Online Training 23 September 2021 8:30 AM - 12:30 PM CEST

Effective BIM Workflows Between RSTAB & RFEM and IDEA StatiCa

Effective BIM Workflows Between RSTAB & RFEM and IDEA StatiCa

Webinar 5 August 2021 11:00 AM - 12:00 PM CEST

Glass Design with Dlubal Software

Glass Design with Dlubal Software

Webinar 8 June 2021 2:00 PM - 2:45 PM CEST

Blast Time History Analysis in RFEM

Blast Time History Analysis in RFEM

Webinar 13 May 2021 2:00 PM - 3:00 PM EDT

Timber Structures | Part 2: Design

Timber Beam and Surface Structures | Part 2: Design

Webinar 11 May 2021 2:00 PM - 3:00 PM CEST

Plate and Shell Buckling Utilizing Dlubal Software

Plate and Shell Buckling Utilizing Dlubal Software

Webinar 30 March 2021 2:00 PM - 2:45 PM CEST

CSA S16: 19 Steel design in RFEM

CSA S16:19 Steel Design in RFEM

Webinar 10 March 2021 2:00 PM - 3:00 PM EDT

The Most Common User Errors With RFEM and RSTAB

The Most Common User Errors With RFEM and RSTAB

Webinar 4 February 2021 2:00 PM - 3:00 PM BST

Member design according to ADM 2020 in RFEM

ADM 2020 Member Design in RFEM

Webinar 19 January 2021 2:00 PM - 3:00 PM EDT

Dlubal Info Day

Dlubal Info Day Online | 15 December 2020

Webinar 15 December 2020 9:00 AM - 4:00 PM BST

Stability Design in Steel Construction with RFEM and RSTAB

Stability Design in Steel Construction with RFEM and RSTAB

Webinar 1 December 2020 2:00 PM - 2:45 PM BST

FEM - Troubleshooting and Optimization in RFEM

FEA Troubleshooting and Optimization in RFEM

Webinar 11 November 2020 2:00 PM - 3:00 PM EDT

Soil-Structure Interaction in RFEM

Soil-Structure Interaction in RFEM

Webinar 27 October 2020 2:00 PM - 2:45 PM BST

NBC 2015 Modal Response Spectrum Analysis in RFEM

Webinar 30 September 2020 2:00 PM - 3:00 PM EDT

Documenting Results in the RFEM Printout Report

Documenting Results in the RFEM Printout Report

Webinar 25 August 2020 2:00 PM - 2:45 PM CEST

ACI 318-19 Concrete Design in RFEM

Webinar 20 August 2020 2:00 PM - 3:00 PM EDT

}
RFEM
RFEM

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
RF-STABILITY

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,030.00 USD