rebar shear capacity

[chad winnekens]

I'm pinning precast plank to 8" cmu. The shear along the cmu wall (10ft long) is about 2kips per foot. Is there a rebar shear table somewhere i can use? I was going to start with #5s at 12"o.c.

 

[JoelTXCive]

I'm not sure this will work. Do you have a sketch?

Concerns:

[ul]
[li]Pre-Cast planks are usually hollow, so you would have to grout the ends.[/li]


[li]Pre-cast planks usually rely on bearing connections. Can the lower region of the CMU wall be made thicker? For example, could you have a 12" thick CMU Wall below the pre-cast panels, and then transition to 8" thick CMU? That would give you 4" of bearing.[/li]
[/ul]

 

[dik]

Is that the shear in the HC slab? If so, find out what the manufacturer rates their HC slab for. I've never considered the filling of the cores for shear resistance... only compression.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[chad winnekens]

Precast ends will be grouted solid and bearing on a steel plate. CMU wall is part of a " masonry shaft" in a building that will be taking up shear instead of bracing in the wall. So actually the masonry wall is a 16" that will transition to 8". So it will be bearing on 8".

 

[dik]

any reason for bearing on a steel plate? I've not normally done that...just on a mortar bed, with rebar connecting the HC slab to the wall.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik