Hello,
I have a question regarding second-order theory. When I perform a standard calculation for beam elements in SSD using the task CSM Bridge Design (Beams), does this calculation include additional moments due to imperfections in column elements? If so, where can I find the results related to those effects?
Ty in advance
No. This tasks only makes a design for existing internal forces that are calculated before. Therefore you would have to calculate before internal forces with 2nd order theory.
Than you for your answer. Is there any tutorial or something similar on how to do it?
Perhaps this video helps: https://www.youtube.com/watch?v=9Jj7gq0xOYk
For steel structures you find a tutorial here: Imperfection concept - SOFiSTiK Tutorials 2025
The pricipal is generally the same for concrete structures, but for concrete structures you should calculate nonlinearly for geometry and material! An example you find in Teddy under “File - Examples” and then further on under “ase - english - nonlinear_beam - aseaqb_1_column_cracked.dat”.
Thank you for your answer