Location

Chicago, Illinois

Session Start Date

4-29-2013

Session End Date

5-4-2013

Abstract

The study area, Erbaa, is one of the largest towns of Tokat with a population of 47000 in the northern part of Turkey. Erbaa is in North Anatolian Fault Zone (NAFZ) and partly located on the Kelkit river plain, also referred to as the Erbaa basin. After the disastrous 1942 earthquake (Ms=7.2), the settlement area was seriously damaged and moved farther southwards of its old place in 1944. Dynamic properties of Erbaa soils were determined and shear wave velocity profiles were prepared to be used in site response analyses as part of a microzonation study. During this process, empirically-based shear wave velocities were calculated and site-specific formulas were proposed. 1-D equivalent linear site response analyses were performed in accordance with site-specific grid model using ProSHAKE (v.1.12) software. The amplification ratio was calculated on the basis of site amplification method using soil/bedrock ratio to obtain amplification factors (AF) for the study area. Amplification factors from 1-D site response analyses mostly vary within a range of approximately 1.5-2.5 in the study area.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Seventh Conference

Publisher

Missouri University of Science and Technology

Publication Date

4-29-2013

Document Version

Final Version

Rights

© 2013 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 29th, 12:00 AM May 4th, 12:00 AM

Evaluation of Site Amplification of Erbaa, Tokat (Turkey)

Chicago, Illinois

The study area, Erbaa, is one of the largest towns of Tokat with a population of 47000 in the northern part of Turkey. Erbaa is in North Anatolian Fault Zone (NAFZ) and partly located on the Kelkit river plain, also referred to as the Erbaa basin. After the disastrous 1942 earthquake (Ms=7.2), the settlement area was seriously damaged and moved farther southwards of its old place in 1944. Dynamic properties of Erbaa soils were determined and shear wave velocity profiles were prepared to be used in site response analyses as part of a microzonation study. During this process, empirically-based shear wave velocities were calculated and site-specific formulas were proposed. 1-D equivalent linear site response analyses were performed in accordance with site-specific grid model using ProSHAKE (v.1.12) software. The amplification ratio was calculated on the basis of site amplification method using soil/bedrock ratio to obtain amplification factors (AF) for the study area. Amplification factors from 1-D site response analyses mostly vary within a range of approximately 1.5-2.5 in the study area.