NEHRP Clearinghouse

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• Kelly, J. M.; Sackman, J. L.
  Conservatism in Summation Rules for Closely Spaced Modes.
  May 1979, 35 p.
  Identifying Number(s): UCB/EERC-79/11
  Keywords: Dynamic response; Earthquakes; Vibration; Nuclear reactor safety; Spectral response; Oscillation modes; Dynamic structural analysis