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How to do a concrete verification

To assess a structure (whether it is sufficiant or not), the following steps must be followed in sequence:

  • Schematising the construction
  • Determining the internal forces and moments (= global analysis, elastic analysis)
  • Checking the cross-sections (= design):
    • Strength
    • Stability 
    • Stiffness

The explanation below covers the design of concrete.

In Diamonds

  • Generate at least the combinations  in ULS FC, SLS RC and SLS QP.
  • Determine which analysis type you’re going to use. Based on the analysis type you’ve chosen:
    • (un)check the buckling verification
    • enter the correct value for the accidental eccentricity δa
    • set the buckling lengths   (if required)
  • Calculate the internal forces F9 or.
  • Select the correct concrete standard with Analysis > Concrete standard.
  • Click on F2 or to calculate the reinforcement. The calculated reinforcement will take the strength and stability requirements into account. Related articles:
  • Click on to calculate the deformation/ cracking widths (= verifying the stiffness).
    • Check the option ‘Compute deformations after creep’.
    • If the model contains walls or plates loaded with axial force, also check the option ‘Extend cracking theory to axial forces’.
  • Verify the cracked deformation.
  • Verify the cracking widths wk (see EN 1992-1-1 Table 7.1N).


Is it possible to request the concrete stresses and the stresses in the reinforcement steel?
No, that’s not possible. Diamonds always shows the elastic stresses. Regardsless which calculations you have performed.
Can Diamonds take the concrete shrinkage into account?
No, that’s not possible.
Is it possible to calculate prestressed/ post-tensioned concrete elements?
No, that’s not possible.
Is it possible to consult the cracked inertia of a concrete element?
No, that’s not possible.

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