I have a four story steel moment frame and want to use knee braces for seismic resistance.
The project is in Seismic Zone B, and will be detailed per AICS 360
The knee braces will be at all beam column connections, and some of those beams are long and carry a lot of vertical load.
The work...
In the commentary of 341-10. It states that knee braces can be designed as Ordinary Moment Frames. It also states that the Knee brace needs to be designed for the force that is required to develop 1.1RyMp of the beam.
This force can get very large depending on the beam size and span. I have a...