1.1 This Standard applies to those structures and components in CANDU nuclear power plants which require seismic qualification by analytical methods (see CSA Standard CAN3-N289.1, General Requirements for Seismic Qualification of CANDU Nuclear Power Plants).
1.2 This Standard specifies the requirements, criteria, and methods for:
(a) Determining the DBE or SDE ground response spectra and ground motion time-histories from the seismic ground motion parameters obtained from CSA Standard CAN3-N289.2, Ground Motion Determination for Seismic Qualification of CANDU Nuclear Power Plants;
(b) Performing acceptable seismic analyses, including the effects of the foundation medium;
(c) Establishing design criteria for structures, components, and supports that require seismic qualification.