help figuring steel needed for hoist/roof support

[newbury]

I thought I posted about this a few years ago but can't find it.

I've got a 40x60 shop w/ 12' ceilings. It's presently got 2 support posts near the center. The posts are 4" x 3/8" angle iron 13.5' apart.


Because of the possibility with this changing climate dumping 10" of snow on us I'm thinking of upgrading and making a support for a hoist at the same time.

I'd like to put up 2 posts adjacent to the 2 present posts with a beam running between them that I can hang a 2 ton hoist off. See red.



I'd like to be able to lift about 2K off the back of my trailer or truck, so I don't need a Shield Arc 10K gantry. I'd probably "tie" them into the present posts.

So to TBN - either what's a good site to figure out what I need for steel (pipe, column, beams?) or suggestions for what I need?

As always price is a main concern.

 

[RedNeckRacin]

2,000 lbs or 2 tons for the lift? Are you replacing the beam already there with another one? Are you setting new posts?

 

[Shield Arc]

If you know your loads, this chart may help.

 

[skyhook]

I would just add another one or two beams to the one already there, looks like you have the room.
Then, wrap a tin sheathing around where the chain will be for your hoist.
I would also add the re-enforcements to the side's like you showed in your drawing.
Thats how mine is done.

 

[Leejohn]

I would 1st get the beam setting on the angle iron post, not hanging the way it is now. Then I would bolt 1/4 X the width X 13.5 feet of the beam on each side of it.

 

[CNC Dan]

I've got a 40x60 shop w/ 12' ceilings. It's presently got 2 support posts near the center. The posts are 4" x 3/8" angle iron 13.5' apart.

I'm not sure, but I think using angle iron as a post is not good.
It has poor buckling strength.
Use round or square tube, or a W profile 'I' beam. Cement filled tubes "Lally columns" are good too, and available at most lumber yards.

 

[newbury]

2,000 lbs or 2 tons for the lift? Are you replacing the beam already there with another one? Are you setting new posts?

2,000 lbs is about the most I plan on having to lift.

If you know your loads, this chart may help.

Thanks, nice to see you back. Always good to get advice from someone with 3 weeks of experience.

I would just add another one or two beams to the one already there, looks like you have the room.
Then, wrap a tin sheathing around where the chain will be for your hoist.
I would also add the re-enforcements to the side's like you showed in your drawing.
Thats how mine is done.

I was planning on 2 uprights, a crossbeam, and braces as indicated in red.

I'm not sure, but I think using angle iron as a post is not good.
It has poor buckling strength.
Use round or square tube, or a W profile 'I' beam. Cement filled tubes "Lally columns" are good too, and available at most lumber yards.

I was initially planning on Lally columns. These were Vestil FJB-150 Basement Floor Jack, 54" - 150" Height Range, Maximum Height Capacity (lbs.) 2588, Minimum Height Capacity (lbs.) 11200: Jack Post Bottle: Amazon.com: Industrial & Scientific an inexpensive one I found.

What sizes/thicknesses would be needed for either tube or I beam? Or is there a site with a handy calculator to help me work it out?

Like I indicated I planned on putting braces to support the crossbeam so it didn't span as much.

Again, thanks for all the replies.

 

[Shield Arc]

Thanks, nice to see you back. Always good to get advice from someone with 3 weeks of experience.

Thanks!:thumbsup:
When I built my bridge crane. I designed it, sent Auto-Cad drawings to the head of the engineering department of the company we worked for, so he could tell me what size iron to use. I told him I planned on use 4-inch schedule 80 pipe for the posts. He said he wouldn't even waste his time figuring the loads for that pipe, it was way over kill. I ended up using the pipe in the four corners, but used 8" x 8" x 1/2" wall square tubing for the two center posts. Hey when you get the iron for free, you use it.

 

[newbury]

Why come here for advise by a bunch of YAHOOS ( including me )

Yup, you wrote it.