Laurie Hartley wrote: ↑
Mon Mar 18, 2019 8:56 am
1. Are your images screenshots from the Free Software programme you suggested and which I have downloaded?
2. When you say the system-utilisation of the steel version is 43% (please forgive my lack of knowledge) what exactly does that mean in layman’s terms?
answering your questions:
The sreenshots are taken from my commercial 3D-static software called 4H-Frap, see here
Modelling 3D-frames is tricky (orientation of beam axis in space, defining hinges between beams...).
I work with 4H-Frap since 25 years and I know the program in detail.
I will try a second run with the free "Framework". Give me some time, Framework is complex.
System-utilization means here: the computed stresses in the beams are compared to the
max allowed stresses. Not more. There are some additional checks necessary, for instance stability.
But the beams are short, that should be no problem.