jheidt2543
Civil/Environmental
I posted this in the Structural Engineering Forum back on the 16th, but no responses. So, I thought I would try here!
I'm looking at a 1.5" x 3.5" x 20 ga. cold formed box section used as a girt. The section is roll formed and instead of welding it closed or using screws to stitch it closed, a "Pittsburg Lock-Seam" is used. The seam is in one of the wide sides. The loading is applied as a uniform load (wind load) to the narrow side.
I'm assuming that this friction fit seam should be discounted some amount to account for the seam used. Does anyone have any suggestions on how much? Does anyone know of any test data on this type of seam for a beam like member?
Thanks in advance for any help!
I'm looking at a 1.5" x 3.5" x 20 ga. cold formed box section used as a girt. The section is roll formed and instead of welding it closed or using screws to stitch it closed, a "Pittsburg Lock-Seam" is used. The seam is in one of the wide sides. The loading is applied as a uniform load (wind load) to the narrow side.
I'm assuming that this friction fit seam should be discounted some amount to account for the seam used. Does anyone have any suggestions on how much? Does anyone know of any test data on this type of seam for a beam like member?
Thanks in advance for any help!
