sharp upstand
sharp upstand
(OP)
hi,
the attached is a section of a parapet having a sharp shape in reinforced concrete.
Since this shape, whether it will be cast in situ or precast, I am afraid that one of the aggregates will settle at the top of the parapet and we wont get the desired shape.
In addition, the reinforcement can not extend all the way and there will be a part which will be unreinforced.
Any thoughts regarding the above and if it can be constructed ?
Thank you
the attached is a section of a parapet having a sharp shape in reinforced concrete.
Since this shape, whether it will be cast in situ or precast, I am afraid that one of the aggregates will settle at the top of the parapet and we wont get the desired shape.
In addition, the reinforcement can not extend all the way and there will be a part which will be unreinforced.
Any thoughts regarding the above and if it can be constructed ?
Thank you






RE: sharp upstand
Form the top 6-8" out of some sheet metal, any shape and color you want, but call it a parapet cap. Put drip edges on it front and back, with a locking attachment (riglet) on the front (outside) and a screwed or bolted attachment on the back. Maybe as part of your roofing system as it moves from the slab, and up the sloped wall to its upper fixings and flashings.
RE: sharp upstand
However, the architect wants it as a fair faced element so it must be a reinforced concrete element.
RE: sharp upstand
RE: sharp upstand
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: sharp upstand
Architects want all kinds of stupid things, without giving their practicality much thought. Then, when things go wrong they conveniently forget that you told them such-n-such wouldn’t work. And, it’s all your fault, again. You could form the top 6-8" of the conc. horiz., with eased edges, and they would still look the same from the street, as the sharp edge. And, they would be possible to build, reinforce and maintain. He can probably have an all conc. surface, or he can have the sharp edge, but not very practically both.
RE: sharp upstand
RE: sharp upstand
RE: sharp upstand
RE: sharp upstand