Metal Base shoe for timber post - can it transfer biaxial horizontal load
Metal Base shoe for timber post - can it transfer biaxial horizontal load
(OP)
Please see the attached photo.
The question is: Can a metal "U" shaped shoe at the bottom of the timber post transfer biaxial horizontal forces to the pier below, given that the metal shoe is nailed only on 2 opposite faces of the post? There are diagonal wood members coming nailed to the base on the post in mutually perpendicular directions, with about a thousand pound factored force in each diagonal.
The question is: Can a metal "U" shaped shoe at the bottom of the timber post transfer biaxial horizontal forces to the pier below, given that the metal shoe is nailed only on 2 opposite faces of the post? There are diagonal wood members coming nailed to the base on the post in mutually perpendicular directions, with about a thousand pound factored force in each diagonal.






RE: Metal Base shoe for timber post - can it transfer biaxial horizontal load
I believe the 'U' shaped shoe can transfer some horizontal force in each orthogonal direction but is not ideally suited for it. A double 'U' shape would be a better idea.
See the attached Simpson StrongTie file. The F1 and F2 forces are shown in red below the tables.
http://www.strongtie.com/ftp/catalogs/c-c-2015/c-c...
RE: Metal Base shoe for timber post - can it transfer biaxial horizontal load
RE: Metal Base shoe for timber post - can it transfer biaxial horizontal load
Attached is the photo that I forgot to attached earlier today. Somehow I doubt that the shoe shown here can take the 900 ± pound unfactored load in each direction that I figure is applied from the diagonal wood bracings nailed to the post, although I do not know the gauge of the saddle nor the nail size used.
RE: Metal Base shoe for timber post - can it transfer biaxial horizontal load
RE: Metal Base shoe for timber post - can it transfer biaxial horizontal load
My other option is to build a stud wall down to a new continuous footing on the rock and extending up to the perimeter rim beams at first floor level, getting rid of the cross bracing.
I would present both options to the owner and his contractor and the contractor's architect/engineer. I expect the second option is more expensive, but perhaps still preferable, although the owner may have to contribute partially to the cost because he would be gaining a basement.