Accession Number:

ADA277666

Title:

Procedures for Computing Site Seismicity

Descriptive Note:

Final rept. Oct 1992-Jan 1994

Corporate Author:

NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA

Personal Author(s):

Report Date:

1994-02-01

Pagination or Media Count:

179.0

Abstract:

This report was prepared as part of the Navys Seismic Hazard Mitigation Program. The Navy has numerous bases located in seismically active regions throughout the world. Safe effective design of waterfront structures requires determining expected earthquake ground motion. The Navys problem is further complicated by the presence of soft saturated marginal soils that can significantly amplify the levels of seismic shaking as evidenced in the 1989 Loma Prieta earthquake. The Naval Facilities Engineering Commands seismic design manual, NAVFAC P355.l, requires a probabilistic assessment of ground motion for design of essential structures. This report presents the basis for the Navys Seismic Hazard Analysis procedure that was developed and is intended to be used with the Seismic Hazard Analysis computer program and users manual. This report also presents data on geology and seismology to establish the background for the seismic hazard model developed. The procedure uses the historical epicenter data base and available geologic data, together with source models, recurrence models, and attenuation relationships to compute the probability distribution of site acceleration and an appropriate spectra. This report discusses the developed stochastic model for seismic hazard evaluation and the associated research. Earthquake, Ground motion, Seismic hazard analysis, Acceleration.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Soil Mechanics
  • Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE