Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
(OP)
So the architect wants to run 110mm sewerage pipes vertically through some of my beams. The beams are simply supported 300x510mm and aren't subject to large shear forces (25kN max at the sleeves).
I know that for horizontal sleeves you have to add extra reinforcement for frame failure but I can't seem to think of anything for vertical sleeves. Google also turns up empty.
Can I just analyse it for a reduced cross section i.e. 300-110-10mm (just to be safe) = 180x510mm?
I know that for horizontal sleeves you have to add extra reinforcement for frame failure but I can't seem to think of anything for vertical sleeves. Google also turns up empty.
Can I just analyse it for a reduced cross section i.e. 300-110-10mm (just to be safe) = 180x510mm?






RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
BA
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
The shear capacity is sufficient if you treat it as 2 90x510mm beams but I still feel uncomfortable. Corbels might be the answer.
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
BA
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
The contractor however thought that it wasn't necessary and cast the beams without them in order to save time. An absolute idiot. (I mean if it wasn't necessary I would have just specified a PVC sleeve). But that's life.
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
BA
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
Thanks for your advice.
RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
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RE: Vertical sleeves in R.C. Beams - Are there any special design considerations I need to be aware of?
Mike McCann
MMC Engineering