CSA N287.2-17 Material requirements for concrete containment structures for nuclear power plants.
3 Definitions The following definitions shall apply in this Standard: Anchor — a steel element cast into concrete or post-installed into a hardened concrete member and used to transmit applied forces. Note: Examples include straight bolts, hooked bolts (J- or L-bolts), headed studs, expansion anchors, undercut anchors, and inserts. Anchor channels — steel profile with rigidly connected anchors embedded in its final location at the time of concrete placing. [Source: ICC-ES AC 232] Note: Historically, anchor channels were called embedded inserts. Anchorage system — the combined materials designed to provide anchorage to concrete for support of equipment or components in their final position. Authority having jurisdiction (AHJ) — the organization having jurisdiction over the design, procurement, fabrication, installation, testing, operation, inspection, maintenance, and decommissioning of a nuclear facility. Notes: 1) AHJ is also referred to as “regulatory authority”.
Containment components — the metallic and non-metallic portions of the containment boundary that are not parts of the containment structure. Containment structure — the structural portion of the containment boundary. Containment system — the arrangement of structure, systems, and components that prevent or limit the escape of radioactive substances when such substances are released from reactor process systems. Embedded part — a part that is in its final location at the time of concrete placing and is permanently anchored in the concrete structure. Note: Embedded parts are generally either a) penetrations that provide openings through the concrete structure for the passage of personnel, material, process piping, ducts, and cables; or b) non-penetrations that are used primarily as a means of supporting items such as platforms, equipment, and piping in the concrete structure or for the protection of the concrete. Engineer — a person in the engineering profession who has specific expertise in concrete containment and is licensed by the professional association having jurisdiction. Note: The engineer can be a designated representative of the operating organization. Expansion anchor — a post-installed anchor inserted into hardened concrete that transfers loads into the concrete by direct bearing or friction, or both. Note: Expansion anchors are classified under the following two groups: a) torque-controlled — an expansion anchor that achieves expansion by a torque acting on the screw or bolt; and b) displacement-controlled — an expansion anchor that achieves expansion by impact forces acting on a sleeve or plug. Expansion is controlled by the length of travel of the sleeve or plug. Failure load — the load at which failure in static tension or static shear of the anchor element of a tested anchor takes place and can constitute a) pull-out of the anchor element, with or without the concrete; b) failure of the concrete; or c) excessive deformation, which can be either strain or slip.CSA N287.2 pdf download.