Question:
How can I determine the effective cross-section properties according to EC 3 or EC 9 with SHAPE‑THIN?
Answer:
Activate the "c/ t parts and effective cross-section properties" option in General Data of the cross-section. Then, click the "Calculation Parameters" button to open the dialog box with the same name. In the second tab, you can specify the desired standard (Image 01).
Then, you have to enter the elements of the cross-section. The c/t parts are usually generated automatically from the geometric conditions; however, they can be created as user-defined in Table 1.7 Cross-Section Parts for Classification or the corresponding dialog box.
Then, define a load case in Table 2.1 Load Cases (Image 03) or in the "Edit Load Cases and Combinations" dialog box, and the internal forces in Table 3.1 or in the "Edit x-Location" dialog box (Image 04).
After the calculation, the results of the effective cross-section are available when clicking the "Effective Parts" button (Image 04).