Hello,
I am having a discussion with a few other structural engineers; half agree with me and the other half believe they are correct.
The subject has to do with pressure loads in a duct system (the duct support structure and the duct itself is modeled in STAAD). We know that the duct has a...
I have modeled a mat that is 115' x 83' in STAAD. I have modeled this mat using 4 noded plates and have placed spring supports on the plates using the subgrade modulus. I am also you using 'compression only' springs in the 'Y only' direction.
After running the model I have a few load cases...
I have modeled a mat that is 115' x 83' in STAAD. I have modeled this mat using 4 noded plates and have placed spring supports on the plates using the subgrade modulus. I am also you using 'compression only' springs in the 'Y only' direction.
After running the model I have a few load cases...
I am design multiple grade beams running between spreadfooters. The spreadfooters are for building columns which are isolated from the mat foundation that I am also design. So the spreadfooters and grade beams are the perimeter of the mat.
The spreadfooters go below the frost depth (2m) and...
When placing a member in STAAD, it places it centerline to centerline (using W-shapes). I know that you can place offsets by using the specification page...beam...offsets.
My question is, is there a more simple way to place offsets without having to select each end of each member??
In the NBC it is unclear to me what to increase the seismic loads by....do you multiply the seismic loads by Rd (Ductility-Related Force Modification Factors) or by Ro (Overstrength-Related Force Modification Factors, or do you multiply Ro and Rd together and use that??
The wording in the NBC...
