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 floor the joist did not catch any load !!
1- Why do we assign the rip hieght, width, thickness twist (in modeling the composite floor and in the design parameters).
2- Do you have any graphical descriptions of the deck dimensions such as (rip width, height, thickness).
3-I'm very confused abot CMP in the design parameter, because when I'm using "composite action" the member fails and it seems that no composite action consider in the design.
4-why we need the option of "no composite action" OR "Ignore positive moment during design"? !!
5- Shear studs must have maximum and minimum spacing, why does STAAD ignore this issue.
6- I'm entering concrete grade 25000 kN/m2, but staadf tells it not normal and accept the value of 25 kN/m2. ?!
7- What would be different if the rip direction running perpendicular to the composite steel joist, what would that change in (rip height, width, thickness)?
I have attached my model for more clarifications.
Regards.
3377.DAR08118-R00.std