Ways to reinforce basement steel beams
Ways to reinforce basement steel beams
(OP)
Fellers,
I am exploring all the different ways i can eliminate an interior post supporting a multi-span W8x18 beam in my basement. I've looked at placing a HSS 5x2 inside the web and adding a plate to the bottom. On one side of the beam is the supply duct so i can only get to one side or just the bottom flange. What unique ways have you seen a beam like this reinforced. I'm also inquiring for any future reference work.
thanks
I am exploring all the different ways i can eliminate an interior post supporting a multi-span W8x18 beam in my basement. I've looked at placing a HSS 5x2 inside the web and adding a plate to the bottom. On one side of the beam is the supply duct so i can only get to one side or just the bottom flange. What unique ways have you seen a beam like this reinforced. I'm also inquiring for any future reference work.
thanks






RE: Ways to reinforce basement steel beams
Usually you can "frame" out the posts and just make them look like a big column??
RE: Ways to reinforce basement steel beams
Do you need to open up the entire bay? Can you move the post somewhere along (relocate) the beam if it is in the way of something.
RE: Ways to reinforce basement steel beams
RE: Ways to reinforce basement steel beams
thanks
RE: Ways to reinforce basement steel beams
RE: Ways to reinforce basement steel beams
RE: Ways to reinforce basement steel beams
RE: Ways to reinforce basement steel beams
For the tearing on the op flange, you could add two angles, legs down, one either side, assuming the bottom of the joists are bearing on the top of the wideflange.
Percentage wise, how much do you have to increase the existing S and I to get the beam to work?
Mike McCann
MMC Engineering
RE: Ways to reinforce basement steel beams
How about adding 2 MC channels and welding continuously to the bottom flange on either side of the web? You can add intermediate stitch plates connecting the MC's and notch around the post if needed. Maybe this will give you enough depth to remove the column without shoring.
-------
|
|
-- | --
|------|
| | <--- MC Welded to bottom flange
| |
-- --
-------- Stitch Plate
RE: Ways to reinforce basement steel beams
my thinking was not flawed (I see you are civil/environmental), i've done this numerous times. I'm just looking for a way that most people wouldn't come up with. I'm basically trying to keep the reinforcing with the web of the beam. i've looked at adding tube sections, channels, plates, etc. It seems the most efficient is adding a plate to the bottom of the flange to maximize headroom but there is the issue with having to remove the column to keep the plate continuous or working around the column before cutting it away. I'm looking for efficiency and reduced labor expense of having to shore the joists on each side. I'm also limited by having a supply duct right next to one side of the W8x18 beam.
T
RE: Ways to reinforce basement steel beams
(One more reminder, you may not gain much benefit by adding cover plate on bottom flange without some strengthening on top)