Verification of cross section resistance and buckling for a railway steel truss bridge

SOFiSTiK Teddy
1

Hi,
I am designing a railway steel truss bridge. I have created superposition for ULS and SLS. How can I use the result for verifications of “cross section resistance” and “buckling” in AQB and BDK modules? In SSD, we have to use combined load. However , there are a large number of load cases for train (g11-17), temperature (8 cases), wind (2 cases) and dead-load (4 cases) in the project.

2

For the cross section resistance simply use our Superpositioning Task (module Maxima) and perform the design checks.
For BDK it is mandatory to have combined load cases.
I would check the relevant members with MAXIMA, use TRAC command ( see video New MAXiMA Feature - TRAC - YouTube) to get the corresponding loadcases and create a combined loadcase, e.g. with the appropriate SSD task. Then perform the BDK design checks.

1 Like
3

Thanks a lot!