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  1. Sergio75

    ASCE7 Site Coefficient F for Site Class D/ Why is it higher than D?

    We were reviewing the provisions in ASCE7 for a building in Site Class D, with a short period of 1.00. The Fa coefficient is given as 1.1, which is higher than the 0.9 given for site class E, ostentibly a worse soil. This was also observed with short periods greater than 1.25 seconds. This trend...

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