Concrete column with groove / slot / key for precast panel
Concrete column with groove / slot / key for precast panel
(OP)
I am attempting to design a concrete column which is an I section due to the fact that I wish to have two grooves running down either side of the column in order to slot a precast wall panel between columns. There is a horizontal pressure on each of the wall panels which transfers directly to the columns. I am looking for a heads-up on how to check that part of my column is not going to snap off. I have tried to design the grooves as though it is between two corbels but translating the problem this way is not particularly effective (or correct).





RE: Concrete column with groove / slot / key for precast panel
RE: Concrete column with groove / slot / key for precast panel
RE: Concrete column with groove / slot / key for precast panel
RE: Concrete column with groove / slot / key for precast panel
RE: Concrete column with groove / slot / key for precast panel
Unfortunately the horizontal pressure is a nominal variable load which could potentially act on either side of the panels - so making the section asymmetrical isn't really an option.
RE: Concrete column with groove / slot / key for precast panel
Concrete and construction quality will be primary in getting good performance out of this design, so performance spec the concrete, even specifying shear values if need be. Also, in your detailing, be sure you consider that there should be fillets on inside corners and chamfers on outside corners. These will affect the bearing area and clearances for the panels.
RE: Concrete column with groove / slot / key for precast panel
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.