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

Answer

Yes, the CONCRETE for RSTAB 8 module also includes the nonlinear reinforced concrete design. Thus, you can activate the "Nonlinear design (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 subjected to compression according to the second-order analysis".

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.

Keywords

Stability Reinforced concrete Column Concrete Model column method Compression members General method Compression member

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