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Title: Seismic hazard evaluation for design and/or verification of a high voltage system

The Venezuelan capital, Caracas, with a population of about 5 million, is within the area of contact of the Caribbean and South American tectonic plates. Since 1567, the valley where it lies and surroundings have been shaken by at leas six destructive events from different seismogenic sources. Electric energy is served to the city by a high voltage system consisting of 4 power stations, 20 substations (230 KV downwards) and 80 km of high voltage lines, covering an area of about 135 x 60 km{sup 2}. Given the variety of soil conditions, topographical irregularities and proximity to potentially active faults, it was decided to perform a seismic hazard study. This paper gives the results of that study synthesized by two hazard-parameter maps, which allow a conservative characterization of the acceleration on firm soils. Specific site coefficients allow for changes in soil conditions and topographical effects. Sites whose proximity to fault lines is less than about 2 km, require additional field studies in order to rule out the possibility of permanent ground displacements.
Authors:
;  [1] ; ;  [2]
  1. Ingenieria de Consulta, Caracas (Venezuela)
  2. Electricidad de Caracas (Venezuela)
Publication Date:
OSTI Identifier:
403455
Report Number(s):
CONF-9508226--
ISBN 0-7844-0101-2; TRN: IM9651%%490
Resource Type:
Conference
Resource Relation:
Conference: 4. U.S. conference on lifeline earthquake engineering, San Francisco, CA (United States), 10-12 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of Lifeline earthquake engineering: Proceedings of the fourth U.S. conference; O`Rourke, M.J. [ed.]; PB: 823 p.; Technical Council on Lifeline Earthquake Engineering, Monograph number 6
Publisher:
American Society of Civil Engineers, New York, NY (United States)
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; VENEZUELA; POWER DISTRIBUTION SYSTEMS; INTERCONNECTED POWER SYSTEMS; SAFETY ANALYSIS; EARTHQUAKES; RISK ASSESSMENT; SEISMIC EFFECTS; GEOLOGIC FAULTS; MATHEMATICAL MODELS; SOIL MECHANICS; SAFETY ENGINEERING