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Analysis of soil effects and distribution of damage from the Pyrgos 1993 (Greece) earthquake
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1996
(EN)
EKT historical period
Title
Analysis of soil effects and distribution of damage from the Pyrgos 1993 (Greece) earthquake (EN)
Creator
Bouckovalas, G (EN)
Karantoni, T (EN)
Anagnostopoulos, A (EN)
Kapenis, A (EN)
Description
On 26 March, 1993, a moderate magnitude earthquake (Ms = 5.5) occurred at 3 km epicentral distance from the town of Pyrgos, in Southern Greece, causing extensive damage to masonry houses. To explain the variability of seismic intensity over the town and to propose measures against future seismic activity, a microzonation study was undertaken which combined geological, geophysical and geotechnical investigations, site specific analyses of seismic ground response and detailed recording of structural damage. The analytical predictions of ground response are correlated to soil conditions and then used to identify (micro-)zones of sites with similar seismic response. Furthermore, they are compared to quantitative estimates of damage distribution over the town. It is concluded that the peak ground acceleration, normalized against the input peak seismic acceleration, is a function of the local soil conditions as well as the seismic excitation characteristics. Hence, it cannot be defined uniquely at a site, without reference to the seismic excitation. However, the normalized peak ground velocity and the acceleration response spectra are mainly functions of the soil conditions and can be used as criteria for the practical definition of (micro-)zones. The distribution of damage in various parts of the town is at least partially attributable to local soil effects. The small epicentral distance of the earthquake, connected with the direction of the fault rupture, as well as the quality and techniques of construction, are additional factors that may have influenced the extent and distribution of damage. © 1996 Chapman & Hall. (EN)
Type
journalArticle (EN)
Subject
Masonry construction (EN)
earthquake damage (EN)
Houses (EN)
Geology (EN)
Geophysics (EN)
Earthquake resistance (EN)
Correlation methods (EN)
Earthquake effects (EN)
Soils (EN)
acceleration (EN)
Seismic motion (EN)
Greece, Pyrgos (EN)
Earthquake (EN)
Seismic excitation (EN)
Microzoning (EN)
Seismic intensity (EN)
Soil effects (EN)
Pyrgos earthquake (EN)
seismic excitation (EN)
Fault rupture (EN)
Pyrgos earthquake 1993 (EN)
Microzonation (EN)
soil conditions (EN)
Seismic ground response (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Geotechnical and Geological Engineering (EN)
Issued
1996 (EN)
Identifier
http://hdl.handle.net/123456789/11781
111 (EN)
2 (EN)
14 (EN)
09603182 (EN)
128 (EN)
10.1007/BF00430272 (EN)
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