2D non-linear seismic response of the Dinar basin,TURKEY

Name: 2D non-linear seismic response of the Dinar basin,TURKEY
Author: Khanbabazadeh, H., Iyisan, R., Ansal, Mustafa Atilla, Hasal, M. E.

İsim	2D non-linear seismic response of the Dinar basin,TURKEY
Yazar	Khanbabazadeh, H., Iyisan, R., Ansal, Mustafa Atilla, Hasal, M. E.
Basım Tarihi:	2016-10
Basım Yeri	- Elsevier
Konu	Site effects, Dynamic behavior, Basin edge effect, Numerical modeling
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0267-7261
Kayıt Numarası	f2f56fea-9993-4936-b5b9-7f436d9721bf
Lokasyon	Civil Engineering
Tarih	2016-10
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	Local geological conditions generate significant amplification of ground motion and concentrated damage during earthquakes. The highly concentrated damages at the edges of the Dinar basin during occurred earthquakes at regions close to rock outcrop bring up the effect of the inclined bedrock effect on the dynamic behavior of the basin with 2D geometry. In this study, first the idealized 2D model of the basin based on the results of the underground explorations and geologic investigations is proposed. Results show that Dinar basin has an asymmetric 2D geometry with two different bedrock angles at edges. Then, a numerical study using finite difference based nonlinear code which utilizes appropriate static and dynamic boundary conditions, and includes hysteresis damping formulation based on the user defined degradation curves is conducted using real earthquake motions of different strength and frequency content. The constructed model is subjected to the collection of 16 earthquakes with different PGA's of 0.1, 0.2, 0.3 and 0.4 g, four motions for each PGA. It was seen that the dynamic behavior of the basin is broadly affected by the two dimensional bedrock. The results indicates the higher effect of the 6° bedrock inclination at east part on the amplification with respect to the steeper 20° bedrock slope at the west. Also, the results show the insignificant effect of the bedrock at the depth more than 150 m on the amplification of the east edge. While the effect of the 6° bedrock angle at the east part continues until 1500 m from the outcrop, it affects the amplification until 700 m from the outcrop at the west part with 20° bedrock angle.
DOI	10.1016/j.soildyn.2016.07.021

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2D non-linear seismic response of the Dinar basin,TURKEY

Yazar Khanbabazadeh, H., Iyisan, R., Ansal, Mustafa Atilla, Hasal, M. E.

Basım Tarihi 2016-10

Basım Yeri - Elsevier

Konu Site effects, Dynamic behavior, Basin edge effect, Numerical modeling

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0267-7261

Kayıt Numarası f2f56fea-9993-4936-b5b9-7f436d9721bf

Lokasyon Civil Engineering

Tarih 2016-10

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin Local geological conditions generate significant amplification of ground motion and concentrated damage during earthquakes. The highly concentrated damages at the edges of the Dinar basin during occurred earthquakes at regions close to rock outcrop bring up the effect of the inclined bedrock effect on the dynamic behavior of the basin with 2D geometry. In this study, first the idealized 2D model of the basin based on the results of the underground explorations and geologic investigations is proposed. Results show that Dinar basin has an asymmetric 2D geometry with two different bedrock angles at edges. Then, a numerical study using finite difference based nonlinear code which utilizes appropriate static and dynamic boundary conditions, and includes hysteresis damping formulation based on the user defined degradation curves is conducted using real earthquake motions of different strength and frequency content. The constructed model is subjected to the collection of 16 earthquakes with different PGA's of 0.1, 0.2, 0.3 and 0.4 g, four motions for each PGA. It was seen that the dynamic behavior of the basin is broadly affected by the two dimensional bedrock. The results indicates the higher effect of the 6° bedrock inclination at east part on the amplification with respect to the steeper 20° bedrock slope at the west. Also, the results show the insignificant effect of the bedrock at the depth more than 150 m on the amplification of the east edge. While the effect of the 6° bedrock angle at the east part continues until 1500 m from the outcrop, it affects the amplification until 700 m from the outcrop at the west part with 20° bedrock angle.

DOI 10.1016/j.soildyn.2016.07.021