One R for the entire structure?
One R for the entire structure?
(OP)
I need an advise on using one R for the roof level, another for north and south directions.
Is there a provision about this? I am designing a two story light frame building that has a 40' long steel beam providing the required turning space in the garage. If R=3 is used for the entire structure, there are not enough shearwalls at the roof level. Can I use R=6.5 for the roof level only? How about using different Rs for each level and direction?
Project site is in Los Angeles area. Any help is appreciated!
Is there a provision about this? I am designing a two story light frame building that has a 40' long steel beam providing the required turning space in the garage. If R=3 is used for the entire structure, there are not enough shearwalls at the roof level. Can I use R=6.5 for the roof level only? How about using different Rs for each level and direction?
Project site is in Los Angeles area. Any help is appreciated!






RE: One R for the entire structure?
RE: One R for the entire structure?
I see it in ASCE 7-06 12.2.3.1 EXEPTIONS:
Section 12.2.3 Combination of Framing Systems in the Same Direction. answers other part of my questions.