Pole Barn Carport

[doxford jim]

Hi Guys,

I have been reading past posts on Pole Barn building techniques and know it would be perfect for a 24' x 24' carport.

I have a couple of questions that maybe someone can help me out on.

What I have in mind is four 6 x 6 post in line at 8ft spacing - the opposite wall 22ft away, identical. Sitting on 48" deep 12" dia. concrete piers with another 12" above ground, into which I fit a steel bracket with rebar 18" into column to take the 6 x 6 posts. This will give a 8' 6" clearance under the cross ties.

To tie the four post together longitudinally I am going to use two 2x10 on edge - one each side of the top of the 6x6 posts, nailed and bolted through. The trusses would then sit on the tops of four 2x10 for bearing support. Cross ways between the posts - to tie them in and stop outward movement, two 2x6 lengths joined together with plates nailed/screwed and glued.

Roof trusses - I am looking at manufactured 4/12 engineered roof trusses (90psf snow load). Roof sheathing 1/2" OSB and duroid/ashpalt roof tiles. Cost quoted was $60 each plus $100 for delivery to job site. I would be putting these on 24" centres for strength.

The U shaped bracket I want the posts to sit in (made from 6" x 3/8" flat bar, cut and welded to shape) on the top of the concrete piers I thought two long J bolts made out of rebar and welded to bottom of the bracket. The brackets lined up while concrete is still wet.

The two questions are:

1) Using the 2 x 10 each side of the post - is that good practice or is there a better way? I would probably screw a length of 2 x under the 2x10's to act as supports also.

2) Would this bracket have sufficient resistance to movement from transmitted post forces (from high winds and roof loading) with the two lengths of 3/4" rebar bent and welded to bottom. The posts would be secured using two or three 5/8" bolts through bracket sides and wood post.

I am looking at building this next spring - early summer. I would appreciate any help or advice that might make this work better.

I am retired and on a pension, so the $$$ do matter these days.

I wish I had known about this website and the different sections ten years ago - I could have saved me a lot of money and headaches.

Thanks for all the free info you put up - it has been a great help to me on other projects:thumbsup::thumbsup::thumbsup:

Any pro's and cons would be greatly appreciated.

Thanks

Jim

 

[smstonypoint]

The U shaped bracket I want the posts to sit in (made from 6" x 3/8" flat bar, cut and welded to shape) on the top of the concrete piers I thought two long J bolts made out of rebar and welded to bottom of the bracket. The brackets lined up while concrete is still wet.

<snip>


2) Would this bracket have sufficient resistance to movement from transmitted post forces (from high winds and roof loading) with the two lengths of 3/4" rebar bent and welded to bottom. The posts would be secured using two or three 5/8" bolts through bracket sides and wood post.

Jim,

Simpson StrongTie makes a saddle (bracket) similar to the one you described. I'm not sure why, but it is available only in Canada.* I see that wouldn't pose a problem for you. I'm no expert, but either bracket should work.

http://www.strongtie.com/products/connectors/canada/RCPS.html

Steve

* PS -- I'm curious. Are building codes significantly different between the US and Canada?