D-W
Active Member
I'm curious what method they use to pour the concrete so that it the floorslabs' round corners are located perfectly to give that curve.
wooden formwork, like the rest of the building. Curved formwork, but still formwork.
They make a curved plywood bulkhead by "kerfing" the plywood and attaching it to a prefabricated steel form with metal screws. This is used for each floor and they just shift this closer and further to the corners of the building based on the slab edge drawing. Build once and reuse
This image is of one of the balcony slabs prior to rebar placement at One Bloor, the guy in the upper left corner is actually measuring the distance from the corner of the building to the start of the curve to ensure proper placement of the 90 degree bend.