scope:

Types of Structures Covered by This Standard:

This standard is intended for use in the seismic analysis of all safety-related structures of nuclear facilities including, but not limited to, above and below ground structures, buried piping, above ground vertical tanks and structures with seismic isolation systems. Analysis of caisson and pile-supported foundations, unlined tunnels, and floating structures are not covered by this standard, However, nothing in this standard should be considered to preclude the use of these structures and structural elements.

Foundation Material Stability:

The analysis procedures provided herein assume that the structures analyzed are adequately supported by their foundation materials and that no soil or rock failure occurs that would modify or void the seismic analysis.