I agree with jayrod12 -- c/c for dimensions; o/c for spacing. Although, our standard abbreviations (defined on general drawing sheet) are "C-C" and "OC".
KootK, please see attached sketch. Intent for new lateral beam above pipe is to balance forces on column from lowering existing girt and offsetting with girt on opposite side of column. The challenge is that the design was completed without full understanding of the building structure (please...
Thanks to all for chiming in -- Option 2 was actually my boss's (not an engineer) but I was leaning towards Option 1. The girt and bracing are part of the lateral system, but location (height) was driven more to support panel connection. We discussed the offset caused by lowering the girt and...
Hi, I am supporting a project involving new piping through an existing 6" precast panel in a steel "butler" building (built in 1988). Contractor needs to make an opening for a 24" pipe (opening size will be ~26" diameter). Challenge is the only location for the pipe is at an elevation that it...
