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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...

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, 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...

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...

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...

All, Have a project where the top of the steel beams that are to receive shear connectors (Nelson Studs) were painted. The deck is installed. My understanding is that the issue with the stud gun is that since it is a very short weld time it will not burn thru the paint properly and it will...

All, This is a variation of all the shelf angle posts in the archive. I have a 3 story building that has precast veneer up to 3 ft or so above the second floor and then brick for 24 ft. The construction for the building is composite steel for the 2 floor and lt ga truss roof. My original...

All, I have a project where a 5 ft wide wall footing was placed during the Thursday when the weather was more than 50 degrees (air temp) then that night it was below 32 degrees (air temp). To my knowledge, no protection was provided on the top of the footing. The footing has a U shaped rebar...

All We have an aeration basin that is approximately 128 ft by 130 ft in plan with a 61 ft by 40 ft corner cut out. The contractor has submitted an RFI to place this 2 ft thick mat in 1 day. It is approximately 1130 cy of concrete. The mat is reinforced with 2 layers of #6 at 6" o.c...

All, I am looking at an RFP that requires, as part of the scope of work, the record drawings (aka as-builts) are to be stamped and signed by the respective disciplines. Has anyone seen this before? What are your thoughts? Regards, MZ

All; I have a gym building that will be steel bar joists at 5 feet on center with Tectum cementitious deck. The question is... will the tectum brace the top chord of the joists? I have looked thru the Tectum information and have a call into them but have not heard back. My feeling is that...

Morning, I inspected some tanks at a plant that have a fair amount of cracking in them and in some locations are evidence of leaks. I am looking at using a liner to stop the leaks. I researched some sprayed on epoxy liners such as the Raven 405 and for some of the tanks this will work fine...

Hello all, A mezzanine I looked at shows some major problems. The mezzanine is 4" total concrete on composite deck (though whether it is a composite deck is now suspect), supported by composite beams framing to noncomposite girders. According to the drawings there are #3@10" ew in top of the...