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Figure 01 - Dialog Box 'General Data' in CONCRETE

Figure 02 - Dialog box 'Settings for Nonlinear Calculation': General Procedure for Compression Elements

FAQ 003532 EN

29 August 2019

Paul Kieloch Add-on Modules RSTAB CONCRETE EC2 for RSTAB RFEM RF-CONCRETE RF-CONCRETE NL Concrete Structures Structural Analysis & Design Eurocode 2

I recently purchased RSTAB with the CONCRETE module. Is it possible to perform a stability analysis of reinforced concrete columns by means of this?

Answer

Yes, it is because the CONCRETE module of RSTAB 8 also includes the nonlinear reinforced concrete design. Thus, you can activate the 'Nonlinear Analysis (State II)' in the 'Ultimate Limit State' tab.

Figure 01 - Dialog Box 'General Data' in CONCRETE

In the detail settings for the nonlinear design, you can select the 'General Design Method for Members in Axial Compression acc. to Second Order Theory'.

Figure 02 - Dialog box 'Settings for Nonlinear Calculation': General Procedure for Compression Elements

It is important that you define the imperfections in RSTAB and apply load curves (CO) according to the second-order analysis for the design, no result combinations (RC)!

Note on RFEM 5:

In RFEM 5, the same procedure is possible in RF-CONCRETE Members. However, the add-on module RF-CONCRETE NL in RFEM is required for the non-linear reinforced concrete design.