CONCRETE MASONRY ARCH THRESHOLD
CONCRETE MASONRY ARCH THRESHOLD
(OP)
Is there a limit to how long of a masonry opening you can have before crossing a "failure threshold" for a masonry lintel?
In the case where you have a 24’ tall CMU wall, with a 12’ wide x 12’ high rough opening, if one would consider the arching effect, you could technically have 5’-4” of “load transferable masonry structure” above the “arch”. Alternately, if the opening were only 8’ high, the “load transferable masonry structure” would be 9’-4” above the “arch” zone.
I personally am not comfortable with either scenario. But, the premise of my question remains - is there a threshold or a maximum span when considering arching action for concrete masonry lintels? It may be a beneficial consideration, or limitation, in the future.
Thank you all!
In the case where you have a 24’ tall CMU wall, with a 12’ wide x 12’ high rough opening, if one would consider the arching effect, you could technically have 5’-4” of “load transferable masonry structure” above the “arch”. Alternately, if the opening were only 8’ high, the “load transferable masonry structure” would be 9’-4” above the “arch” zone.
I personally am not comfortable with either scenario. But, the premise of my question remains - is there a threshold or a maximum span when considering arching action for concrete masonry lintels? It may be a beneficial consideration, or limitation, in the future.
Thank you all!






RE: CONCRETE MASONRY ARCH THRESHOLD
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