Reinforcing An Existing Solid Grouted CMU Wall
Reinforcing An Existing Solid Grouted CMU Wall
(OP)
In the past, I have designed and detailed reinforcing around new openings in existing, partially grouted CMU walls. The reinforcing scheme usually involves a steel angle lintel (or 2) inserted in the mortar joint above the opening with 8" of bearing on a solid grouted cell on each end of the lintel (i.e. each side of the opening). Also, sometimes breaking out the face shells of the 1 or 2 cells on either side of the new opening and inserting vertical rebar full height, then grouting the newly reinforced cells. The second step above is meant to act as a wind column/jamb to distribute wind loads to the slab and the roof diaphragm at the bottom and top of the wall respectively.
My question is, how can alter the above reinforcing scheme if the existing wall is already grouted solid instead of only partially grouted. If grouted solid, there will not be any empty vertical cells to which to add rebar and grout. Is it possible to use the same methodology and somehow cut a vertical groove in the solid grouted wall in which to add the rebar, or is it better to bolt a piece of structural steel to the face of the wall to serve the same purpose?
My question is, how can alter the above reinforcing scheme if the existing wall is already grouted solid instead of only partially grouted. If grouted solid, there will not be any empty vertical cells to which to add rebar and grout. Is it possible to use the same methodology and somehow cut a vertical groove in the solid grouted wall in which to add the rebar, or is it better to bolt a piece of structural steel to the face of the wall to serve the same purpose?






RE: Reinforcing An Existing Solid Grouted CMU Wall
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MAP
RE: Reinforcing An Existing Solid Grouted CMU Wall
RE: Reinforcing An Existing Solid Grouted CMU Wall
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RC
RE: Reinforcing An Existing Solid Grouted CMU Wall
RE: Reinforcing An Existing Solid Grouted CMU Wall
RE: Reinforcing An Existing Solid Grouted CMU Wall
Did you design the steel in composite with the CMU or conservatively design it to carry all the loads?
RE: Reinforcing An Existing Solid Grouted CMU Wall
RE: Reinforcing An Existing Solid Grouted CMU Wall
RE: Reinforcing An Existing Solid Grouted CMU Wall