ASCE 7 velocity pressure numerical constant
ASCE 7 velocity pressure numerical constant
(OP)
Refer to Chapter C27 (Commentary) page 550 in ASCE 7-10
"The constant 0.00256 reflects the mass density of air for the standard atmosphere, that is, temp of 59 F and sea level pressure of 29.92 in Hg, and dimensions associated with wind speed in mi/h."
When deriving the constant, ASCE has chosen to take an average value for the mass density (0.0765 lbm/ft^3) opposed to the apparent maximum of 0.0822 lbm/ft^3. Any idea which reference on pgs 555-556 get into that detail? I would think the oldest reference would be most likely.
"The constant 0.00256 reflects the mass density of air for the standard atmosphere, that is, temp of 59 F and sea level pressure of 29.92 in Hg, and dimensions associated with wind speed in mi/h."
When deriving the constant, ASCE has chosen to take an average value for the mass density (0.0765 lbm/ft^3) opposed to the apparent maximum of 0.0822 lbm/ft^3. Any idea which reference on pgs 555-556 get into that detail? I would think the oldest reference would be most likely.
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RE: ASCE 7 velocity pressure numerical constant
RE: ASCE 7 velocity pressure numerical constant
In Russia building design you!
RE: ASCE 7 velocity pressure numerical constant
If you want to reduce the wind pressure because the project is located at high altitude (high temperature), the commentary does state this is possible. I never tried to sharpen the pencil that much.
RE: ASCE 7 velocity pressure numerical constant
Maybe I will tabulate something to see how it varies to some high elevations...maybe...
In Russia building design you!