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Comparison of seismic provisions of 1985 NBC of Canada, 1981 BSL of Japan and 1985 NEHRP of the USA

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Conference5th Canadian Conference Earthquake Engineering, July 6, 1987, Ottawa, Ontario, Canada
Subjectearthquakes; earthquake engineering; building codes; seismic loads; seismic load; base shear calculation factors; seismic zoning; seismic spectral content; period determination; structural behaviour; importance factor; soil, foundation factor; vertical force distribution; torsion; storey drift limitation
Abstract
The basis of design and the seismic load, including the factors that contribute to the base shear calculation, e.g. seismic zoning, seismic spectral content, period determination, structural behaviour, importance factor and soil/foundation factor, are examined. The method of distributing the forces in the vertical direction, torsion, storey drift limitation, etc. are also presented. Similarities and differences among the three codes are noted. It is found that, in general, the provisions of the three countries can be related to one another in terms of the various components. The base shear in the respective highest seismic zone is largest in the Japanese code (BSLJ) and lowest in the NEHRP recommendations of the U.S.A.; seismic forces in the Canadian code (NBCC) fall slightly above those of NEHRP.
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  • Proceedings of the 5th Canadian Conference Earthquake Engineering: 1987-07-6, Ottawa, Ontario, Canada (1987): 747–756.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1517
NRC numberNRCC 28757
NRC-IRC-4550
NPARC number20358587
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Record identifier0d52d5ba-e4f2-4e93-9e2d-c9986232b866
Record created2012-07-20
Record modified2024-05-10
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