Skibur
Structural
- Aug 6, 2019
- 3
We are adding openings to existing tilt wall panels. These are solid panels, 6 1/2" (was expecting 7 1/4") thickness with #5@12" vertical and #5@12" horizontal. We have analyzed the wall panel for out of plane and shear in which the existing reinforcing as is will suffice, no additional bars needed at the jambs, head, etc. However, I can not ever remember NOT providing some sort of supplemental steel at the opening (sandwich channel, jambs, etc.). Opening sizes vary 8' wide x 12' tall OHD another location is a personnel door, and 8'-0" square louver to the exterior.
Few points
1. Surface cracking may occur at the corners dues to stress concentrations, not a structural issue
2. We basically have a very deep beam above the opening and no additional vertical support is required.
3. At the interior panels the jamb on each side of the opening is fine for out of plane loading
4. At the exterior panels we plan to add a steel for lateral support.
What have others done regarding openings in wall and supplemental steel? If nothing is provided, I would think we would want to drill the exposed rebar and fill with epoxy??
Thank you in advance for any comments!
Few points
1. Surface cracking may occur at the corners dues to stress concentrations, not a structural issue
2. We basically have a very deep beam above the opening and no additional vertical support is required.
3. At the interior panels the jamb on each side of the opening is fine for out of plane loading
4. At the exterior panels we plan to add a steel for lateral support.
What have others done regarding openings in wall and supplemental steel? If nothing is provided, I would think we would want to drill the exposed rebar and fill with epoxy??
Thank you in advance for any comments!