Are there any reasons why Joist Girders should not be used as perimeter framing members.
I've heard there are drag strut issues, related to the connnection between the perimeter steel deck and perimeter framing (exterior diaphragm fastening)
Also, has anyone used Joist Girders for concentrically...
What , if any, are the disadvantages of using Girt joists for perimeter framing.
I've heard there are drag strut issues, not sure if thats related to the connnection between the perimeter stl deck and perimeter framing.
Also, has anyone used Girt joists to "make" CBF's. I've seem Girt joists...
How do you add a column on a transfer beam in the modeler mode.
I keep getting an error stating I'm adding a column onto of a beam, which is exactly what I want to do.
I think my model might be corrupt?
Does anyone know of a design example for a cantilevered roof deck? Simple beam anaysis does not seem right.
Also, I'm getting bogged down with the span factors for non cantilevered conditions
For example if I have a single span deck
why is the moment calc ( .125 (dl + ll)) L^2 ?
Ive designed a 1.5 B roof deck with a 3' cantalever using a beff = 1 foot
Deck flutes are perpendicular to perimeter bm.
Fb 20 ksi
Using a 50 psf SL and a 20 psf DL
M = 70 x 3^2 /2 = .315 k'
Sreq. = .315 (12) / .6 x 20 = .315
Sp = 3.18 for B18 deck
Any comments ?
Does Ram consider Pd and PLp (ie col loads)
when it calcs wind up lift requirment in spread footings
Also, if it does, how do you design a combined footing in Ram
the options I have are spread cont.& mat
