![]() Seismic Analysis Results: Sms Sm1 Sds Sd1Ĭheck Approximate Fundamental Period from 12.8-7 : = Ct * hnx where Ct = 0.020, x = 0.75 and hn = Structural Height (ft.) = 0.020 * ( 25.26250.75) = 0.225 seconds The Coefficient Cu from Table 12.8-1 is : 1.400 Fundamental Period (1/Frequency) : = ( 1/Natural Frequency ) = ( 1/33.000 ) = 0.030 Check the Value of T which is the smaller of Cu*Ta and T: = Minimum Value of (1.400 * 0.225, 0.030 ) per 12.8.2 = 0.030 As the time period is < 0.06 second, use section 15.4.2. Period Response Modification Factor Importance Factor Site Class ![]() Input Values: Earthquake Analysis per ASCE 7-2010 Short-period site coefficient 11.4-1 Long -period site coefficient 11.4-2 Maximum Mapped Acceleration Value for Short Periods Maximum Mapped Acceleration Value for 1 Sec.
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