ASD vs. LRFD minimum C&C wind pressure
ASD vs. LRFD minimum C&C wind pressure
(OP)
Hey all,
I'm working on a project where I'm designing the exterior walls, and I used a 16 psf mininimum wind pressure per ASCE 7-10 30.2.2, which states:
Minimum Design Wind Pressures
The design wind pressure for components and cladding of buildings shall not be less than a net pressure of 16 psf, acting in either direction normal to the surface.
I was using a reduced wind pressure of 14 psf previously, but I was told by my PE supervisor that 14 is acceptable due to the change of ASCE 7-10 treating wind as a strength load than a service load (and we use ASD in design).
Is that true? Can that 16 psf load mentioned in ASCE 7-10 30.2.2 be reduced in ASD design?
I'm working on a project where I'm designing the exterior walls, and I used a 16 psf mininimum wind pressure per ASCE 7-10 30.2.2, which states:
Minimum Design Wind Pressures
The design wind pressure for components and cladding of buildings shall not be less than a net pressure of 16 psf, acting in either direction normal to the surface.
I was using a reduced wind pressure of 14 psf previously, but I was told by my PE supervisor that 14 is acceptable due to the change of ASCE 7-10 treating wind as a strength load than a service load (and we use ASD in design).
Is that true? Can that 16 psf load mentioned in ASCE 7-10 30.2.2 be reduced in ASD design?






RE: ASD vs. LRFD minimum C&C wind pressure
This replaced the previous ASCE 7-05 minimum of 10 psf.
So to convert the 16 psf to a service-level wind you'd use 0.6W or 0.6 x 16 = 9.6 psf...essentially the same as the former 10 psf.
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RE: ASD vs. LRFD minimum C&C wind pressure
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: ASD vs. LRFD minimum C&C wind pressure
RE: ASD vs. LRFD minimum C&C wind pressure
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/