Toe nailing with lag bolts

[taikos186]

Builder did nailed double seal plate to the wood girder beam. I have wind loading on walls. Found out that I do not have required capacity for the shear, need to use lag bolts, and wall already covered. Since the floor is elevated I can make required connection from the bottom (going through the triple 2X12 girder beam up to the the 2x6 double seal plate), but the way it can be done only installing 1/2" lag bolt on an angle, same principle as "toe nailing". Is it possible to use 1/2" bolt for toe nailing? Or may be there is better way to take care of shear?

 

[Lion06]

Can you post a sketch?

 

[taikos186]

Here is the sketch of lag bolt connection

 

[ToadJones]

Can install some sort of strap on the outside?

 

[taikos186]

Yes, straps are installed and wall studs are connected to the seal plate with Simpson SP-2 connectors.

 

[msquared48]

I assume that the outside ply is continuus across the sill plate joint, so that shear is not the problem.

I assume then that it is the shear in the inside ply face that is the problem.

That said, if you place Simpson A35's, or similar, flat along the sill plate, triple beam interface line at the proper spacing, they should be able to transfer the shear from the sill plate to the triple joist.

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask

 

[woodman88]

The wind load from the wall needs to be transferred to the floor diaphragm. Just nail, from below, up into the sill plates with the additional nails required to transfer the shear to the disphragm.

Garth Dreger PE
AZ Phoenix area

 

[BAretired]

Agree with woodman88. Or could use 4" long screws angled up through deck and plate.

BA

 

[taikos186]

what if there not enough nails going from floor diaphragm to the girder beam?

 

[BAretired]

Enough nails to do what? Don't you want the shear from the double plate going into the floor diaphragm?

BA

 

[msquared48]

Sounds like the triple joist girder beam has wood diagonals to transfer the lateral out to the foundation below. If that is the case, then the load has to get to the girder beam which is serving as a drag strut.

Are you saying then that the floor diaphragm is not secured adequately to the girder beam?

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask