Hey guys below is a photo of a jib I built to move junk around the shed i'm worried about the post flexing and am lookin for a idea on making it stronger.I have a piece of 1/2 inch angle 8inches both ways and 12 ft long.Please you fellows that just wanna pic it apart sit this one out believe it or not i'm just poor not stupid I know its a mess but it's what I have.Im just afraid that 6x6 may not hold. Im also about to pour concrete so I could maybe add something that way Thanks.
post strength post mount jib
- Thread starter jbird5986
- Start date
wssix99
Well-known member
More importantly, the worry should be the roof coming down as a result of the post flexing or sheering off the foundation.
I'm not sure I have ever seen such a thing designed as 'a thing.' You would need to reinforce the post in all directions. Adding a brace could transfer a point load to the column and make it even weaker.
The key would be to transfer loads to a foundation and make it independent of the roof structure.
A rolling A-Frame hoist would probably be the path of least resistance to do what you are looing to do:
walta
Well-known member
To my eye it is a wounder the weight of what looks like a 25 foot steel beam hanging off the top of a 9 foot wood post has not pulled the post over before you hang a load on it.
A proper foundation for something with half the length would be 6 yards of concrete with a steel cage toped with a steel mast.
Walta
A proper foundation for something with half the length would be 6 yards of concrete with a steel cage toped with a steel mast.
Walta
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whateg01
Well-known member
Now now! Op said not to pick it apart, no matter how unsafe or likely it is to collapse. So, since op apparently only wants pats on the back for it not falling over yet, I'll sit this one out.
driftpin
Well-known member
I'm with wsslx99, the HFT rolling crane looks like a much-safer solution to what he wants to do.
TurnipTruck
Well-known member
The minimum that thing needs for me to be near it would be a wheeled A frame at the far end.
Stuart in MN
Well-known member
How long is that I-beam, and how much weight do you plan on being able to lift with it? At first glance it seems excessively large and heavy considering the vertical post it's mounted on, but maybe the photos aren't showing things accurately.
racecougar
Well-known member
You're right to be concerned. My recommendation would be to remove what you have before it pulls the structure down. There is no reasonable path to properly reinforce what you have going on.
The amount of force applied to that post via leverage is astronomical. No level of reinforcement with what you have laying around is going to help, you'll severely injure or kill yourself by doing this. I would recommend taking what you have and making an a frame hoist or buying a used one. I understand money being tight but the expense of your health and/or life is at risk here.
walta
Well-known member
I really like this idea it kills almost all the lateral forces and the post may well take the remaining vertical forces.
Walta