@JLNJ I have been having issues with attaching files, but hopefully the file is attached and helps.
My concern is the grey area of increasing the energy dissipation elsewhere in the frame while increasing the redundancy and overstrength of the frame in general. There certainly is an increase...
In the context of seismic design regulations, ASCE 7 allows for an exception in certain cases regarding the design of Steel Ordinary Cantilevered Column Systems. Specifically, in Seismic Design Categories D and E, ASCE 7 permits the use of provisions outlined in 12.2.5.6, typically reserved for...
If I recall correctly, the intent for Type 5 horizontal irregularities is to properly account for elements that are acting as the LRFS in both axis or are non-parallel. Offset T cantilevers (10ft cantilever in one direction and 5ft cantilever in the other direction) certainly have torsional...
KootK,
Thank you for the response I greatly appreciate the input. I had a thought last night about providing a vertical element bolted to the precast panel (acting like a strut of sorts) below the second floor girders down to a spot where the wall is grouted whereby eliminating the need to...
KootK,
At your convenience, please see the attached elevation and the following responses:
- can you post a typical elevation sketch? Where and how big the new openings are will be an important aspect of this
o All windows are 3'-6" x 4'-0", but will likely be slightly larger due to the steel...
I am working on a project where the owner would like to turn an existing single story warehouse into a multi-story office building that has existing insulated precast panels around the exterior. Based on the GPR, the panel has a very similar profile to the attached image. Where the existing...
Thank you for the responses.
I am aware rods are extremely ineffective in compression. That's essentially the reason for the post. Rods were merely used in this post because of the extreme compressive inefficiency as well as the fact structural rod bracing will see a compressive load unlike a...
When designing structural rod bracing, I feel like it's necessary to determine what compressive load results in plastic deformation of the shape to verify the shape can elasticity recover in addition to the other bracing related checks. However, I do not see this done often. What am I missing or...
