Civil Engineering Association

CSA S832:14 (R2019) Seismic risk reduction of operational and functional components (OFCs) of buildings

Earthquakes pose a serious threat to safety and have rendered many buildings unusable due to extensive damage to their operational and functional components (OFCs). In fact, the main cause of casualties and property damage in the event of an earthquake is often the failure of these OFCs. In many cases, the losses associated with damage to these components are considerably greater than damage to the structural system.

The third edition of CSA S832, Seismic risk reduction of operational and functional components (OFCs) of buildings, helps reduce seismic risk of OFCs and improve the post-earthquake functionality of buildings. This new edition supersedes the previous editions published in 2006 and 2001.

This new edition is intended to be used in better harmonization with the 2015 National Building Code of Canada.

Key Changes in the New Edition:

Greater clarity with new content organization, revised definitions and sample calculations, updated symbols, flow charts and references and new definitions for OFC performance objectives
New annexes on methods and criteria to determine the seismic adequacy of OFCs in terms of drift-related effects and seismic force calculations
New guidelines on water systems and piping, information technology systems, industrial risk-generating buildings, and heritage buildings
New and updated clauses cover:

New procedures for OFCs in new buildings;
Determination of seismic risk index and suggested mitigation priority thresholds
The design of seismic restraints and explanatory notes on restraint of OFCs equipped with vibration isolation systems

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