Use the Configuration dialog to define parameters applied during the verification of a steel member according to Eurocode 3.
- Access
-
- In the
Steel/Aluminium design layout, click
Configuration in the Calculations dialog.
Dialog elements
- Calculation points
- Specify a number of calculation points or characteristic points:
- Enter the number of points that are evenly distributed along the member length.
- Select Characteristic points and then click Options to open the
Calculations in Characteristic Points dialog.
- Calculation parameters
-
- Efficiency ratio
- Defines the coefficient by which the plasticity limit will be multiplied. This ratio increases or decreases the plasticity limit.
- Maximum slenderness
- Verifies the slenderness of the member.
- Components of complex members are not taken into account
- Select this option to ignore complex members components for the members during the calculations.
- Elastic analysis
- Classifies the cross-section as a class 3 cross-section.
Note: The Elastic analysis option does not apply to class 4 sections. These sections are not reclassified to class 3 after selecting this option.
- Deselect this option if you want to check each cross-section automatically. During this process,
Robot uses the cross-section class to calculate the strength of the section in the plastic state (class 1 and 2) or the elastic (class 3 and 4) state.
- Shear verification in the elastic state (6.2.6)
- Checks he shear stresses in the elastic state according to point 6.2.6(d) of the code without considering the partial plastic redistribution of shear stresses.
- Methods of calculation of interaction factors kij
- Contains the list of calculation methods of the interaction factors kij.
- These calculation methods are used to verify the global stability of a member under complex loading (compression and bending). These factors are included in the verification formulas (6.61 and 6.62) given in section 6.3.3.(4) of the EN 1993-1-3:2005 code.
-
Method 1 [Annex A]: Calculates the kij factors according to Annex A.
- Method 2 [Annex B]: Calculates the kij factors according to Annex B.
- Fire analysis
- Allows design and verification of steel members with user-defined sections according to the specified guidelines:
- European code EC3 EN 1993-1-2:2005
- Official document 3 of the ECCS Technical Committee 'Model Code of Fire Engineering' - First Edition, May 2001.
- The parameters of the fire analysis are defined in the
Member definition - fire resistance parameters dialog. It is possible to select a verification criterion used during the fire verification. There are three verification methods available.
- Resistance domain - verification according to section 4.2.3 of the EN 1993-1-2 code or sections III.5.1-7 of the document 3 of the ECCS Technical Committee.
- Temperature/time domain - verification according to point 4.2.4 of the EN 1993-1-2 code or sections III.5.8 of the document 3 of the ECCS Technical Committee.
- Time domain - verification according to point 4.2.4 of the EN 1993-1-2 code or sections III.5.8 of the document 3 of the ECCS Technical Committee.
Note: Selecting the Fire calculations option excludes structure analysis in the serviceability limit state. Therefore, the Limit state - Serviceability option in the Calculations dialog will not be available.
- Exclude internal forces from calculations
- Opens the
Internal Forces Not Taken into Consideration dialog which allows you to define the limit values of internal forces.
- During the analysis, any force value that is negligible for a specific section will be disregarded.
- Units of results
- Specify if you want to use the selected steel code units or the units used in
Robot in your member design results.
- Camber
- Select
Take the deflections from the following case into consideration, and then select the load case for which the displacements defined will be treated as structure camber.