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Author Topic: Building stuff knowledge i don't seem to have  (Read 3318 times)

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Offline 711ac

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Re: Building stuff knowledge i don't seem to have
« Reply #20 on: December 22, 2017, 08:01:18 PM »
Bracing the poles and beams is going to be the trick both in the plane of the beam and also in the plane of the trusses

I wonder if he needs all of his 20' spans @ full height or just at the log loading area? Even 2 of the spans with some stout 45's for bracing would do a lot, and for the truss plane. End walls would be just perfect along with maybe an added LVL (front to back) with another set of 45's.(diag. brackets/bracing/gusset) pick your local terminology :D in the middle.

Offline Holmes

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Re: Building stuff knowledge i don't seem to have
« Reply #21 on: December 23, 2017, 08:03:34 AM »
 I am not a big fan of setting something 18" tall on top of the posts unless it sits in a full depth welded steel saddle.  The beams could be place between the posts with " joist hangers" or welded hangers. You would be handling less weight, make them up yourself , set them with a lift. You just need to cut the poles higher. 
  When they put the trusses on my barn they preassembled 4 trusses on the ground and raised them in place with a crane, 4 lifts took less than 2 hours to put all the trusses up.
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Offline Grizzly

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Re: Building stuff knowledge i don't seem to have
« Reply #22 on: December 23, 2017, 12:13:08 PM »
711, i want a consistent ceiling height throughout so that i can drive loader/forklift/truck/whatever anywhere in the building. I also want 20ft openings everywhere for the same luxury of hauling wood wherever. Or at least until i start closing in the walls. But you had me thinking there for a while until i realized what i just said.

Holmes, good point. My carpenter was going to notch the poles and create a saddle of sorts but i'll see if he wants something stronger. With your idea of hanging the beams between the poles ....... I don't have 20ft logs to mill my own beams but i could get my rafter guy to make that style of truss to sit in that gap and into the fabricated truss hangers. And that could be a fair bit cheaper than LVL. I'm gonna check that out.
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Offline Grizzly

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Re: Building stuff knowledge i don't seem to have
« Reply #23 on: January 07, 2018, 02:06:03 PM »
I am not a big fan of setting something 18" tall on top of the posts unless it sits in a full depth welded steel saddle.  The beams could be place between the posts with " joist hangers" or welded hangers. You would be handling less weight, make them up yourself , set them with a lift. You just need to cut the poles higher. 
  When they put the trusses on my barn they preassembled 4 trusses on the ground and raised them in place with a crane, 4 lifts took less than 2 hours to put all the trusses up.

My daughter roughed this for me. Now, if that idea seems workable all I need is someone to help design a floor truss style of beam that I can build to go in there. Currently drawn for a 4" wide beam but can be done for almost any width.

 

 
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Offline Iwawoodwork

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Re: Building stuff knowledge i don't seem to have
« Reply #24 on: March 15, 2018, 12:31:26 AM »
I used to own a float house  on ten mile lake , Oregon coast that was about 40' long  25' wide and had a 20' free span center beam for the front room.  the beam was 40'. The structure was over 40 years old when I sold with no sag. The Beam was made using 20" x 8'  3/4" plywood sandwiched between 2"x10"s one above the other, glued and screwed together on each side of the ply, very stiff . we did not have much snow but high winds most winters. I would not be afraid of a 20' span between posts with a sandwich beam made like that. If you wanted more put 1/2" ply on the outside mismatching the ends.

Offline Kbeitz

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Re: Building stuff knowledge i don't seem to have
« Reply #25 on: March 18, 2018, 08:02:16 PM »
Kinda hard for me to draw but If you could mount some 1/2" thick angle iron in a saddle of the pole and sit your beams on top of the angle and bolt everything fast to the pole that sure would make it strong.

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Online Don P

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Re: Building stuff knowledge i don't seem to have
« Reply #26 on: March 18, 2018, 09:24:33 PM »
In your mind push on the pole in each direction like a roof on an unenclosed building in the wind. Start welding bracing on that angle :(
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Re: Building stuff knowledge i don't seem to have
« Reply #27 on: March 19, 2018, 08:57:18 AM »
In your mind push on the pole in each direction like a roof on an unenclosed building in the wind. Start welding bracing on that angle :(
I agree 100 percent...
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