Let me begin by pleading ignorance when it comes to Mechanical Steel Tubing.
I have client who has installed a three-story spiral staircase in a residence. They have used Mechanical Steel Tubing for the column. It appears to be a 3" pipe, but the client is uncertain how the steel was produced...
My question is whether anyone can give me some history on the use of fly ash in structural concrete. As an office standard, we do not allow the use of fly ash according to our specifications. I have never really been given a satisfactory answer as to why that is the case. I was wondering if...
I am determining the allowable bending stress for a 1 1/2x1 1/2 tube using ASTM A500 Grade B steel. This is referenced in both AISC 9th Edition and AISI Cold Formed Steel Design Manual. For AISC the bending equation is typical, but for AISI there is an omega value to devide your allowable by...
