8x8 post fixed base 5

[JoeBaseplate]

I can't recall to have ever fixed the base of wood post. I have a situation where I might have to do that. I couldn't find an appropriate simpson base anchor for that. Is a custom built base plate the way to go? I am thinking of a steel base plate with welded HSS to fit the 8x8 in.

 

[rowingengineer]

Given the bolts are in shear, couldn't you allow a bit of shrinkage, maybe even spec a spring washer or similar.

I don't mind teguci, I just wouldn't want to be the poor guy that has to install this connection.

How could you do anything so vicious? It was easy my dear, don't forget I spent two years as a building contractor. - Priscilla Presley & Ricardo Montalban

 

[hokie66]

Installing through shear bolts connecting timber posts to insitu plates both sides is not an easily performed operation. I have done it myself with U-shaped post bases, and aligning the bit is not easy. If you get it misaligned and have to redrill, or if the holes in the steel are too big, then they don't work in shear.

With Teguci's detail, you can have the holes in the steel made to match the screw shank. Predrill a bit smaller and run in the screws. Done.

 

[dhengr]

Teguci's detail looks very good to me too for the intended purpose. Either screws or timber rivets would work just fine, with due attention to spacing and edge distance in all directions and faces. Generally, on a connection like this, more, smaller fasteners, into the wood, lead to a better performing connection. And, I would make the standoff plate larger in plan, maybe the same width as the plate we see face on in the sketch.

The only issue I have is that it seems to me that he has detailed half the screws and nuts and anchor bolts to be left handed threads, and they may be hard to come by. And, most certainly will confuse the hell out of the contractor’s workers.