wood to concrete connection 1

[AlpineEngineer]

I have a situation where the client wants to cantilever a glu lam to pick up some roof load columns as well as deck framing. There is no desirable way to connect this cantilevered beam to something to resist the uplift. So, the client came up with the idea of running the glulam alongside (bolted) to the foundation wall (there is an exterior foundation wall in line with this glulam. I looked at the NDS values for bolt design values for single shear connection for lumber to concrete connection.

I suppose if I'm bolting in through the side of a glu lam I would use perpendicular to grain values out of these tables??

Also, in determining how many bolts I need I am a bit confused. In determing the load on each bolt do I just do the statics as if I had a bearing point at each of these bolts? If I try obtaining the loads that way the more supports I add the worse the loads look on the first couple bolts/supports...

Thanks a bunch,

 

[DaveAtkins]

I think you can treat the bolts as a bolt group, instead of as a series of pinned supports (which is what you did). You will need to find the polar moment of inertia of the bolt group, and then you can check the bolts for the applied shear and moment.

DaveAtkins

 

[tdsull]

I went to a Wood Frame Council Seminar recently the link below was given out.

http://www.awc.org/calculators/connections/ccstyle.asp