Question for all you concrete chemistry experts;
I have a job where I'm overseeing construction for the EOR. They're pouring the raft slab now and I'm starting to get concrete cylinder tests. I have a specified strength of 35 MPa (about 5000 psi) and I'm surprised to see tested strengths of 45...
hello all,
looking for a free program that will allow me to define multi (various length) span beams with various applied loading and solve for shear and moment at various locations, as well as support reactions.
i've found beamboy somewhat useful, but it can be frustrating to find values...
Hello All.
I am doing a structural review for a rooftop solar panel racking system, which is comprised of extruded aluminum rails. I have CAD drawings of the extrusion profiles, and need to figure out section properties (moment of inertia, section modulus, etc)so I can calculate the compression...
Hello All;
I am analyzing cold formed C and Z shaped steel roof purlins in an existing pre-engineered portal frame building. Each purlin is only single span (30' spans) but have a 5' lap over every support.
I have been using a program called CFS that analyzes cold formed steel sections, and...
Hello,
My question is in regard to determining the yield strength of steel I beams in existing buildings. In the past, I have used historical steel grades listed in the local steel design handbook as a basis for assumption, based on the age of the building. The problem I'm having is that for...
Hello,
I am trying to analyze an open web steel joist in an existing building in Ontario, Canada.
My problem is, the top and bottom chords of the joist are an irregular shape that I have never seen before. If someone can help me identify the shape, and help me find the section properties, I...
