kostast88
Structural
- Jul 22, 2013
- 112
I have a tower project where walls are build ahead of the slabs with self climbing formwork. Connection of slabs to walls is achieved with couplers.
In some cases we use starter boxes but can't use them everywhere and couplers are required. Now, the Contractor failed miserably to install couplers properly in the walls. They are almost always in wrong elevation, too deep in wall concrete and in many cases they are completely missing so they aren't properly secured before concrete casting. They use timber templates for beams and get those mostly right but for slabs that's an overkill.
As a result we install resin post-drilled reinforcement. A lot!
I was thinking to start tac-welding coupler anchorages on the wall cages to ensure they stay in place. Does anyone have any similar experience or any detail suggestion?
In some cases we use starter boxes but can't use them everywhere and couplers are required. Now, the Contractor failed miserably to install couplers properly in the walls. They are almost always in wrong elevation, too deep in wall concrete and in many cases they are completely missing so they aren't properly secured before concrete casting. They use timber templates for beams and get those mostly right but for slabs that's an overkill.
As a result we install resin post-drilled reinforcement. A lot!
I was thinking to start tac-welding coupler anchorages on the wall cages to ensure they stay in place. Does anyone have any similar experience or any detail suggestion?
