Avis de livraison : En raison des difficultés liées au coronavirus à Postes Canada, les délais de livraison sont retardés pour tous les niveaux de service. Par conséquent, il est à prévoir que les temps de livraison seront plus importants.
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Avis de livraison : En raison des difficultés liées au coronavirus à Postes Canada, les délais de livraison sont retardés pour tous les niveaux de service. Par conséquent, il est à prévoir que les temps de livraison seront plus importants.
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Structural Evaluation of Existing Steel Buildings in Seismic Regions

Structural Evaluation of Existing Steel Buildings in Seismic Regions

$80.00 $0.00
Frais de port calculés à l'étape de paiement.

Please note that this recording is from an earlier date.

Webinar  - 0.1 CEU

Duration: 1 hr 21 m

Presented by Lucia Tirca, Ph.D., ing.

This session reviews the evolution of seismic design requirements in the National Building Code of Canada (NBC), focusing on Structural Design (Part 4) and Steel Design Standards (CSA S16). A large portion of Canada’s building stock predates 1970, when the first probabilistic seismic hazard map was introduced. Since then, seismic design loads have increased significantly—from a 100-year return period in 1970 to a 2475-year return period by 2005.

To support the evaluation and upgrading of existing buildings, NBC includes guidance in Commentary L of its User’s Guide. Buildings assessed using these guidelines are expected to meet performance levels consistent with NBC’s intent. For example, the 2005 Commentary L referenced the 1992 NRC Guidelines, which were based on a 475-year return period.

In 2015, Commentary L introduced three levels of seismic evaluation tied to different hazard levels, all requiring full earthquake loads without reduction. The upcoming 2025 edition will adopt a three-tiered evaluation system based on the new Seismic Evaluation Guidelines (SEG) for Existing Buildings in Canada, designed to align with ASCE/SEI 41-2023. Tier 1 and Tier 2 focus on Life Safety, while Tier 3 supports both force-based and performance-based approaches. Case studies illustrate how existing steel buildings can be evaluated using Tier 1 and Tier 2 procedures.

Eligibility for CEUs

CEUs will be issued for this webinar to participants that meet the following criteria:

  1. Participant must attend at least 75% of the webinar
  2. CEUs are only eligible for a participant with a 90% attention rating. In order to maximize your rating the webinar must be full screen. Working on other things while the webinar is running (i.e. not full attention) minimizes your attention rating. The webinar platform automatically tracks your rating.
  3. CEUs are issued to the registered contact person only (person with assigned seat)

Notes

  1. Upon your purchase, you will receive an email to register the participant seat(s). Assignment of your seat is necessary for webinar registration, a necessary step, even if you have purchased only one. Please check your junk folder if not in your inbox. 
  2. Webinars are non-refundable. Access will end on November 3, 2026.
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