I am having a hard time understanding how to design a freestanding masonry elevator or stair shaft. I am looking at like 40 foot tall shaft that is going to access the ground floor and two elevated floors. After reading the code it makes it clear if I don't want lateral loads from the building...
I am working on a building from 1966 that has roof framing that consists of 30" Precast Concrete Tees @ 8'-0" o.c. that is spanning approximately 68 feet. Does anyone know where I can get some information on the capacity of these tees? Any rules of thumb for being able to make cuts in existing...
Has anyone come across a 2 way concrete slab system with drop panels at the columns but the reinforcing of the concrete slab is 45 degrees from the axis of the column grid and not the typical perpendicular direction? We are going to be renovating the entire existing building. They want to change...
I am working on this building from around 1960 and it has an existing poured gypcrete roof deck system that spans to bulb tees that span to the steel structure. The client wants to close a bunch of existing roof penerations that had existing duck work with a steel plate bearing on the existing...
I am working on a wood stud wall with structural I plywood on one face as a perforated shear wall to resist lateral loads. The equation for perforated shear wall capacity is Vwall = (v Co)*(Sum of total lengths of wall segments). My question is for the "v" in the above equation (intial shear...
I am working on this building where they exposed the existing steel lintels that is supporting 12" wide unreinforced brick masonry x 4' high x 6' span opening. The existing steel lintels need to be replaced, so I am working on trying to come up with a plan to support the brick above the window...
