10B. DIMENSIONING PART 2/4

CHAPTER 10B 'DIMENSIONING' 47 3.3.4 Armament details 3.3.5 Strength calculation After the pre-estimation process is completed, i.e. the dimensioning of the structure and adaptation of the reinforcements to the existing situation and before the creation of the pushover analysis scenario, it is necessary to precede the "Strength Calculation" by selecting the corresponding command: "Sizing">"Supporting columns">"Strength calculation" 3.3. § Calculation of M-N interaction diagrams It involves the calculation and display of the moment-axial interaction diagrams, based on the geometry of the cross-section, the quality of the materials and the reinforcement. The three- dimensional diagram of the strength envelope (My, Mz, N) is produced. In addition, the Tension- Deformation diagrams for steel and concrete are displayed schematically, and the Stress- Curvature diagram is shown in detail. The following section discusses the process of generating the charts and the presentation of all the necessary information that you can see in this dialog box. • CHART CALCULATION To create the interaction diagram of the selected cross-section, select either the "Calc1" or "Calc2" button. The difference between the two diagrams concerns the part of the diagram with negative axial (- N) representing the tensile. -Calc1 : produces a linear tensile diagram, which means lower tensile strengths, hence less favourable conditions. -Calc2 : also calculates the intermediate values of the tensile, resulting in a curved diagram and more accurate tensile results. • With this option you can edit the reinforcement of column or wall in an integrated calculation and design environment. You can also perform reinforcements as well as calculate new moment diagrams. • Detailed instructions on how to use this command can be found in the corresponding user manual ( chapter B. Details of Pillar Reinforcement )