Abstract: Semiactive control systems combine the features of active and passive control to reduce the response of structures to various dynamic loadings. They include: (1) Active variable stiffness, where the stiffness of the structure ...

Abstract: The 1973 Nuclear Regulatory Commission (NRC) design response spectra have been used extensively in the seismic design of nuclear power plants and equipment. The question which has frequently been raised is whether the NRC ...

Abstract: Passive energy dissipation devices are used to reduce the damage from earthquakes by absorbing a portion of the earthquake-induced energy in structures. Wide acceptance of these devices in structures will depend on the ...