Hi, I really need help. I am trying to design an open warehouse made of steel truss roof and column. I keep on getting joint instability on one of my support. I don't know if what I did was right in my modelling process. Should I separate the design…

I'm trying to model the attached floor system, and I need to make sure following points: 0- Can I draw the composite deck to cover all the floor area or do I have to draw it for every panel in the floor. because when I'm trying to cover the whole…