ASCE/SEI 7-05 - Wind Pressure Coefficients - Mean or Maximum 1

[SAK123]

I have a question related to wind pressure coefficients presented in the ASCE/SEI 7-05 - Minimum Design Loads for Buildings and Other Structures. My question relates to the wind pressure coefficients that are defined in this document for standard rectangular buildings. In a typical wind tunnel study, testing is conducted over a period of time (from seconds to hours) for which thousands of pitot tube pressure data readings are generated during this time period. I assume that is how the pressure coefficients were obtained for the ASCE 7-05 document. Are the pressure coefficient values that are shown in ASCE 7-05, MAXIMUM pressure coefficient values or the MEAN pressure coefficient values that were obtained during the testing time period ?

I have already posted this question at the ASCE (code related questions) without any response. Maybe nobody knows the answer.


Thanks.

 

[Ron]

Neither. The values are based on computations from boundary layer theory based on the measurements taken from wind tunnel testing.

You can check the references given in the commentary of ASCE 7-05 for the actual methods.

 

[kslee1000]

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