Construction joint between cantilevered slab and support
Construction joint between cantilevered slab and support
(OP)
I am working on a baseball stadium project that has a dugout with a roof that cantileveres from the top of a retaining wall. The contractor wants to place a horizontal construction joint at the top of the wall and pour the roof seperately. It would be similar to having a vertical joint in the mid span of a beam, which is obviously a bad idea. I don't like the idea but I can see how it would be difficult to build. In my mind even though I don't like it seems to work as the joint is not through a critical shear plane and the reinforcing will properly developed on each side of the joint. I have not found any additional ACI requirements in additional to typical flexural reinforcing that need to be consided to allow this? Any thoughts are appreciated. I have attached the detail for reference.






RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support
This sounds like standard construction practice to me. It is rare (but not un-heard of) to pour a horizontal surface monolithically with a vertical one.
Why is putting a joint in the middle of a beam a bad idea? This is the point where shear would be theoretically zero. As long as the rebar runs through, that would be the ideal place to put a joint.
RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support
BA
RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support
RE: Construction joint between cantilevered slab and support