Charred
Structural
- Jan 29, 2016
- 35
High seismic (SDC: D), 2-story steel special moment frames
The architectural constraints of this building do not allow for braced frames due to the clear spans needed and many openings for windows, doors, etc. I have ran several iterations with different column locations, orientations, number of columns, etc. and the smallest columns I can get to satisfy the SC/WB ratio are W12x96 with the largest being a W14x257.
I know in SMF's the economy is in larger member sizes and less connection detailing, BUT in this case, let's assume column size is the driving factor - not economy. Is there a realistic option in achieving a smaller column or am I stuck at an impasse and it is what it is?
The architectural constraints of this building do not allow for braced frames due to the clear spans needed and many openings for windows, doors, etc. I have ran several iterations with different column locations, orientations, number of columns, etc. and the smallest columns I can get to satisfy the SC/WB ratio are W12x96 with the largest being a W14x257.
I know in SMF's the economy is in larger member sizes and less connection detailing, BUT in this case, let's assume column size is the driving factor - not economy. Is there a realistic option in achieving a smaller column or am I stuck at an impasse and it is what it is?
