RFreund,
The majority of the brick is thin set that is cast into the outer layer of concrete (3") for the insulated concrete panel. The special areas (pilasters, quoins and headers) were theoretically tied back to the structural layer of the tilt up panel with brick ties. My thoughts include...
Hello,
I looked at a building that was completed in 2011 that was constructed with insulated tilt up concrete panels with thin set brick (8" concrete, 2" insulation and 3" arch concrete). There are parts of the panels where they did not place the architectural layer of concrete and field built...
All,
To be clear, the rebar in the wall above the opening does not have epoxy on it. I need to drill up into the lintel (from the bottom) that the Contractor put over the construction opening and epoxy the rebar (Hilti 270 I think). The design vertical wall reinforcing is #5@16". I have...
I am not concern with shear. I am more concerned with proper force transfer with the vertical rebar that is already in the wall and getting a proper lap length for the new epoxied rebar and the existing rebar in the grouted lintel.
Hello,
I have a project where the Contractor left an opening in the 2 story wall to facilitate moving materials into the building and now needs to close it up. What are the thoughts of drilling up into the bottom of the lintel and epoxying the typical specified reinforcing (#5@16")? This...
All
Regrettably all of this was done before me and the issue with the missing waterstop in the existing expansion joint was not discovered until construction started and they excavated the existing footings and started laying the rebar.
I agree that building a new wall is the best option but...
All,
We have an issue with an expansion we did on an existing tank. The original tank is about 70 ft wide and 270 ft long (plan east west) and has 3 expansion joints that run parallel to the width. The expansion of the structure which consists of another 70 ft wide and 270 ft long tank that...
Hello,
Another canopy question. I have a new building where they want to use canopies with tie rods in various locations. The wall is 8" metal studs with dense glass gyp board then 2" insulation, 2" air gap then the brick. These canopies will be over large (10ft+) windows. At the top...
Morning!
I have a project where we specified Pressure Treated (0.6CCA) 3x members for the girders and joists for a fixed pier (3x10 for joists, 3x12 for girders). Sizes were selected to support a Cushman. They are supposed to be Kiln Dried after treatment to <19%. The Contractor has come...
@Motorcity - Cannot use the elevator shaft as there is only 1 and it of course is located adjacent to the large chase that runs full height of the building. Trying to figure out how to isolate it from the LFRS and still maybe using it for gravity. The stairwells are not CMU.
@KootK - do not...
I did chat with the people from Sideplate, but in conversation with the contractor (and his preferred fabricator) they did not want to go that route. I plan to recommend it again but we will see what they say.
All
Working on a 4 story moment framed building and having issues with drift for wind. Building is 61'-4" tall (15'-4" floor to floor) not counting the mansard roof. I have worked on taller buildings but they ended up with braced frames or concrete shear walls. Building is L shaped with...
The tower's LFRS above the roof will be moment connections as it is open on 2 sides and then on the other 2 sides are translucent panels. I read thru ASCE 7-10 and the 2003 NEHRP and it did not address this. If the tower stopped at 35 feet and I had a 5,000 lbs mechanical unit on it then it...
All
A question on the height limits (ASCE 7-10 - Table 12.2-1). I have a fire station with apparatus bay on the right and a 2 story fire station/police department on the left. The plan is to use steel framing. Per Table 12.2-1, the height limitation for an OCBF in SDC D is 35 feet. Most of...
