TWO MODEL CODES STIFFEN PROTECTION

Sweeping changes are reported to seismic design provisions in two major national model building codes commonly used in the eastern United States. The revisions are included in the current publications by the Building Officials & Code Administrators International Incorporated (BOCA), and the Southern Building Code Congress International Incorporated (SBCCI). The revisions are based on ground acceleration, soil type, a response modification factor and the structure's fundamental period. The provisions will require seismic design for buildings sited where ground acceleration is greater than 0.05 g, including areas that in the past required no seismic design. The BOCA and SBCCI strengthened their seismic provisions based on recommendations of the National Earthquake Hazards Reduction Program (NEHRP). The new provisions are based on seismic performance catgegories that consider both the seismic risk of the site and building type. Seismic risk is derived from a map on which contour lines describe peak velocity-related acceleration coefficients.

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  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  United States  10036
  • Publication Date: 1992-1-6

Media Info

  • Pagination: p. 7-9
  • Serial:
    • ENR
    • Volume: 228
    • Issue Number: 1
    • Publisher: McGraw-Hill, Incorporated
    • ISSN: 0891-9526

Subject/Index Terms

Filing Info

  • Accession Number: 00618835
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 31 1992 12:00AM