Steel Column Reinforcement
Steel Column Reinforcement
(OP)
So I have a steel (A36) box column 3x3x3/16" it is 63" tall and will have a 3000lb load applied at the top perpendicularly (its for a guard rail). As of now the column is not strong enough and needs to be reinforced. I was treating it as a simple cantilever beam with the load on the end. This resulted in a max stress at the floor of 101.5 ksi. I was thinking of adding a brace from the floor to the middle of the column but I am having a hard time finding any resources explaining how to calculate the max load or stress the new reinforced column could handle. Any suggestions?






RE: Steel Column Reinforcement
RE: Steel Column Reinforcement
BA
RE: Steel Column Reinforcement
See what a replacement would be.
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin
RE: Steel Column Reinforcement
BA
RE: Steel Column Reinforcement
RE: Steel Column Reinforcement
They don't want to replace the column but obviously it can not handle the moment caused by 3000lbs at the free end. I could add another 3by3 column behind it and then a brace? Would that work out essentially to making it a 6 by 3 column?
RE: Steel Column Reinforcement
Why not add a C6x8.2 each side and cut them off where the existing shape can carry the load by itself?
BA
RE: Steel Column Reinforcement
Mr = 3*63/12 = 15.8 kip ft.
Factored or allowable load?
RE: Steel Column Reinforcement
You can't fully develop the 3/16" material with a maximum 3/16" fillet.