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Is it possible to define the distribution coefficient ζ manually when calculating with RF-CONCRETE Deflect? So that it should always be at least 0.5?

Answer

No, this is unfortunately not possible.

If the option "Tension Stiffening" is not applied for the calculation, the distribution coefficient ζ is either "0" for "uncracked" or "1" for "cracked". See also the technical article linked below for the distribution of the distribution coefficient ζ.

But the manual specification of z. Eg ζ = 0.5 is not possible.

Keywords

Distribution Coefficient Zeta Deformation deflection State II

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RFEM Main Program
RFEM 5.xx

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 Concrete Structures
RF-CONCRETE 5.xx

Add-on Module

Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)

Price of First License
810.00 USD
RFEM Concrete Structures
RF-CONCRETE Deflect 5.xx

Add-on Module

Analytical deformation analysis of plate structures consisting of reinforced concrete

Price of First License
400.00 USD