Investigation of Damping Acceleration Ratio and Site Effects on Seismic Ground Response in the Duzce Region, Turkey
Oglądaj/ Otwórz
Data
2018Autor
Ateş, Ali
Uğur, Latif Onur
Akbiyikli, Rıfat
Keskin, Inan
Yeşil, Burak
Demirdag, Caner
Metadane
Pokaż pełny rekordStreszczenie
The city of Duzce in Western Black Sea Turkey has a experienced of a destructive
earthquake with Mw=7.2 in 1999 Duzce earthquake and is situated on the highly active
Eursasian plate. The North Anatolian Fault Zone (NAFZ) crosses through Turkey
from east to West; earthquake occured on this fault on August17, 1999 (Kocaeli) and
November 12, 1999 (Düzce). Regional geology and subsoil conditions can change the
site charecteristics of ground motion. Thus, detecting the soil magnification at the time
of occuring an earthquake, especiallyfor weak soils, is crucial subject for investigators.
In this research, one dimensional ground response behavior analyses were exucuted for
Gölyaka area utilizing the August 17, 1999 Duzce e record with arthquake strong
ground motion with DEEP SOIL software. Soil charecterstics and depth to engineering
bedrock at the Gölyaka sites are various and the observed level of the constructional
hazard at Gölyaka region at the time of occuring the Duzce earthquake was different
as well. Findings revealed that higher magnifications ratios occur at higher periods due
to soil behaviour. Result of this research revealed that local geological conditions can
magnify ground motion at some periods and, acording to the amplification, and obtained response spectra can exceed the suggested design spectra. As aresult, it is appearent that
local site conditions should be taken into consideration for earthquake- resistant
engineering designs on soft soils.
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