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Hello, We are just getting involved in a new job where we were provided existing drawings and the floor and roof framing are denoted "As Keene Super C Steel, 1200 J14 24" o.c. and As Keen Super C Steel, 1000J15 24" o.c." respectively. Has anyone heard of Keene Super C Joists? I am fairly sure...

We are having a discussion in regards to providing underpinning for lightly loaded residential walls. The existing basement wall is 6'-0" tall (from brick slab on grade to underside of existing floor joists) 8" brick masonry with a two story plus attic wood framed structure above. The existing...

I was wondering if anyone had the information on this decking? I have seen many other types of this deck posted on here, but cannot seem to find the information on this explicit variety of the Robertson decking.

I was wondering if anyone has seen this roof deck system before. It appears to be gypsum poured over cardboard which spans between steel joists and wide flanges beams. At some locations the wires in the cardboard appear to be spanning over the beams/joists, however for most of the structure the...

Is there a way to export the deflected animation to a movie file?

My question is in regards to a project that we just worked on that required 6,000 psi concrete for the building columns, and elevated slabs. The concrete strengths came back substantially higher, most of them on the order of 9,500 to 10,000 psi after 28 days. The owner is concerned that this...

I am trying to determine if welding of this material has any special requirements. This material is being used for a 1" diameter support rod for a stair. The rods came too short, therefore the fabricator is requiring a full penetration splice at the center of the rod. I am familiar with the...

Is there any issues with welding metal deck to the supporting steel for a 6:12 slope? We are requiring 3/4" puddle welds that will fuse to the supporting steel. Also are welders who weld steel decking to hot rolled support required to be certified with AWS D1.3. Currently we have welding...

Hello, According to ASCE 7-05 section 12.2.3.1 the value of R used for design of any story shall not exceed the lowest value of R that is used in the same direction at any story above that story. I take this to mean that I cannot increase the R value as I go down the building. My question...

I have attached a sketch of my question. I have received and inspection report that notes that the stiffeners added to the column web to transfer the moment into the column apparently were installed in the wrong position and therefore do not exactly line up with the beam flanges. I have a...