Cgb

Although Equation 31.45 was derived for the special case in which the far ends of both column C1 and column C3 are hinged, it can be adjusted to account for the following cases: (1) if the far end of column Ci (C1 or C3) is fixed, then take GCi = 0 (except for GC2) and (2) if the far end of column Ci (C1 or C3)

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