Cutting doors in existing concrete tiltwall panels
Cutting doors in existing concrete tiltwall panels
(OP)
I have seen many ways of doing this. If existing drawings are available that indicate existing reinforcing, what design parameters should I be looking for? Obviously the new door cut into the wall will not have the additional rebard around the opening that is typically detailed for a new wall with an opening cast in.
One method that I have used is to frame the opening with a bent plate channel mitered at the corners and welded. This ensures that cracking does not occur at the corners but may be overkill for a 3'-0" door opening.
Anyone else have any good methods of reinforcing? This is a load bearing wall spanning between drilled piers.
One method that I have used is to frame the opening with a bent plate channel mitered at the corners and welded. This ensures that cracking does not occur at the corners but may be overkill for a 3'-0" door opening.
Anyone else have any good methods of reinforcing? This is a load bearing wall spanning between drilled piers.






RE: Cutting doors in existing concrete tiltwall panels
RE: Cutting doors in existing concrete tiltwall panels
RE: Cutting doors in existing concrete tiltwall panels
RE: Cutting doors in existing concrete tiltwall panels
Is it possible to have the one edge of the opening at the edge of the panel?
Dik
RE: Cutting doors in existing concrete tiltwall panels
RE: Cutting doors in existing concrete tiltwall panels
There are no edge bars, but the main reason they are in is for casting and early shrinkage.
Unless you have very high thermal expansion or frost in the area, I would not be too concerned that there are not any edge bars.
I have seen a number of renovations done like this in Australia with no problems 10 years on!
You need to check the strength by a rational analysis though, and you cant rely on this as a shear wall.
RE: Cutting doors in existing concrete tiltwall panels