Precast Concrete Balstrade subject to Crowd Loading
Precast Concrete Balstrade subject to Crowd Loading
(OP)
Hi guys,
I have a balustrade for a stair subject to crowd loading that was initially insitu concrete however, the QS has decided it will be easier to build if it was precast. Personally I don't think this will work because it will be unable to transfer moment into the slab.
Has any had a detail similar to this that has worked? Likewise does anyone have advice on what the best construction solution would be for this situation?
I have a balustrade for a stair subject to crowd loading that was initially insitu concrete however, the QS has decided it will be easier to build if it was precast. Personally I don't think this will work because it will be unable to transfer moment into the slab.
Has any had a detail similar to this that has worked? Likewise does anyone have advice on what the best construction solution would be for this situation?






RE: Precast Concrete Balstrade subject to Crowd Loading
Prop the precast balustrade off the block wall, with suitable lateral restraint.
Cast the slab underneath it.
RE: Precast Concrete Balstrade subject to Crowd Loading
Just load tested one a few weeks ago. I'll look up the results and let you know.
RE: Precast Concrete Balstrade subject to Crowd Loading
RE: Precast Concrete Balstrade subject to Crowd Loading
RE: Precast Concrete Balstrade subject to Crowd Loading
See attached sketch. There would also need to be some rebar for the balustrade to wall connection. Still some bugs to work out but it could be done. Also, some tweaking of the proportions of the ledge, rebar layout, etc. would be needed - this is just a quick idea really.
Now whether it is more economical and a better choice, I'll leave that to you.
RE: Precast Concrete Balstrade subject to Crowd Loading
The architect may wish to add a strip along the bottom to hide the weld plates from view.
BA