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ASCE 7-10 External Pressure Coeffient (GCp)

ASCE 7-10 External Pressure Coeffient (GCp)

ASCE 7-10 External Pressure Coeffient (GCp)

(OP)
I'm attempting to create a spreadsheet that tabulates design wind pressures for specific tributary areas.

Fig. 30.4-1 shows a graph of external pressure coefficient (GCp) vs effective wind areas (for Walls on enclosed/partially enclosed buildings with h<=60 ft). I notice this graph is logarithmic.

Is there any place I can find the logarithmic function pertaining to ASCE 7-10, for the GCp value so that I may implement it on my spreadsheet?

Thanks in advance!

RE: ASCE 7-10 External Pressure Coeffient (GCp)

You don't need the functions. Do a smei-log interpolation. That will give you the numbers for varying areas.

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