Use the Configuration dialog to define the parameters applied during the verification of a steel member according to the South Africa SANS 10162-1:2011 code. Open the dialog clicking the Configuration button in the Calculations dialog. The following dialog displays.
You can specify the following calculation parameters.
- Calculation points; you can define them 2 ways.
- By defining a number of points along the member length (the points are evenly distributed along the member length) - the Number of points option.
- By defining coordinates of characteristic points; select the Characteristic points option and click the Options button to open the Calculations in Characteristic Points dialog.
- Efficiency ratio defines the coefficient by which to multiply the plasticity limit (to increase or decrease the plasticity limit).
- Maximum slenderness; if the option is selected, the slenderness of a member is verified; in addition, you can specify allowable values of the slenderness of a member in compression (use the Compression field) and of a member in tension (use the Tension field); the real slenderness of a member is compared with these values; if any of the limit values is exceeded, the member is classified as unstable.
If you selected the Components of Complex Bars are not taken into account option, Robot ignores components of complex bars during calculations of these bars.
Click the Exclude internal forces from calculations button to open the Internal forces not taken into consideration dialog; this dialog box includes options that define the limit values of internal forces (thus the force values that are 'negligible' for a specific section may be disregarded). Also, you can select units for displaying results of the member design. The results are presented in the units used in the indicated steel code, or in the units used in Robot.
At the bottom of the dialog is a list for selecting a load case (dead load); the calculated displacements are treated as structure initial deflections for a selected load case. You must select the Take the deflections from the following case into consideration option then.