NDS 3.7.1.4 On studs Question
NDS 3.7.1.4 On studs Question
(OP)
NDS 3.7.1.4 states that compression members should be limited to a slenderness ratio of less than 50. Are studwalls included in this rule? Why is this generally ignored, I mean, software does warn you when you do use a member that exceeds this ratio but it's not clear on the commentary whether this is applicable to studs; following this particular rule would be impractical since 2x4 walls would be limited to a height of about 6'-6".
Anybody has a thought on this?
Anybody has a thought on this?






RE: NDS 3.7.1.4 On studs Question
This usually isn't an issue for stud walls as they have sheathing on one or both sides that laterally braces the weak axis. Thus, for a 2x4 stud you need a length of greater than 14.5 feet before you exceed the 50 limiting value. You are entirely correct that without weak-axis bracing stud walls are limited to 6.25'.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
www.americanconcrete.com
RE: NDS 3.7.1.4 On studs Question
IBC 2012 states that the max. height for 2x4's [laterally unbraced] is 10 ft [Table 2308.09.1] or whatever is justified by analysis.
RE: NDS 3.7.1.4 On studs Question
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
www.americanconcrete.com
RE: NDS 3.7.1.4 On studs Question