I have seen some acoustical ceiling details without diagonal wire but some project with diagonal wires. Does code require the diagonal brace? maybe not in low seismic zone?
I am doing a CFS steel stud project. it's an addition to existing building. At one location, the exterior steel studs (only take lateral wind/pressure, no axial) need to be installed under an existing ceiling (drywall). The contractor installed the top slip track with #10 screws to the underside...
I did some research. in my case, I have seismic design category C. Here is my summary
by using the system with R=3, we are allowed to use AISC specification to design the system not the AISC 341. In the specification of B2, we can use load and load combo in applicable code, ASCE 7 2.3 or 2.4...
I have a project. we could use ordinary braced frame (R=3.25) or steel not specially detailed for seismic (R=3). I know for R=3.25, we have to use over-strength factor to design brace, column, connections. but for R=3 system, do we need to use the load combo with overstrength factor? did not...
We have W-shape steel columns with heavy vertical loads on conventional spread footings. The base plate of the steel columns exceed two inches thick. So we want to add fins or stiffeners at the column base to reduce the thickness of the base plate. Do you have reference or details for how to...
