Selection of Ground Motion Prediction Equations for Probabilistic Seismic Hazard Assessments of the Izmit Bay Bridge

Date

2016-09-09

Author

Li Destri Nicosia, Giovanni
Gülerce, Zeynep

Metadata

Show full item record

Item Usage Stats

168
views

0
downloads

This study investigates the effects of using global and regionalized ground motion prediction equations (GMPEs) developed for shallow crustal and active tectonic regions on the outcomes of probabilistic seismic hazard assessment (PSHA) for the target region (Gülerce and Abrahamson, 2014). We selected the PSHA conducted for the Izmit Bay Bridge (Chacko et al., 2014) which employed the global Next Generation Attenuation (NGA)-W1 GMPEs (Power et al., 2008) in the original version as the case study. Gülerce et al. (2016) proposed a regionalized version of these models which are applicable to Turkey (TR-NGA-W1 GMPEs). Additionally, new global GMPEs (NGA-W2),(Bozorgnia et al., 2014) have been developed based on an extended global ground motion database (Ancheta et. al, 2014). The seismotectonic model developed for the Izmit Bay Bridge in the original version (Chacko and Giannakou, 2013) is directly adopted and the full set of TR-NGAW1 GMPEs is implemented in a commercial PSHA software (EZ-Frisk 8.0, Fugro Consultants, 2015). PSHA analyses are carried out for North Tower (located on rock) and South Approach (located on soil) of the Izmit Bay Bridge using three separate sets of GMPEs (NGA-W1, TR-NGAW1, and NGA-W2). Spectra and design scenario earthquakes obtained for three sets of GMPEs are compared to evaluate the effect of GMPE selection on the design scenario earthquake and the site amplification. The differences between the spectral ordinates obtained using the three sets of GMPEs at the North Tower and for the relevant vibration period of the Tower are negligible. The same differences at the South Approach are more notable, including the period of vibration of the viaduct structure and are mainly due to site amplification effects.

URI

http://www.35esc2016.eu/
https://hdl.handle.net/11511/77648

Conference Name

35th General Assembly of the European Seismological Commission

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

DEVELOPMENT OF STRENGTH REDUCTION FACTORS FOR PERFORMANCE-BASED SEISMIC DESIGN OF BRIDGES IN FAR-FAULT SEISMIC REGIONS Rabaia, Tareq Z. S.; Dicleli, Murat; Department of Engineering Sciences (2021-9) In this thesis, a methodology to develop strength reduction factors for performance-based seismic design of bridges in far-fault seismic regions is presented. The presented methodology is mainly based on performing linear 5%-damped response spectrum analyses (RSA) and nonlinear time history analyses (NTHA) of bridge piers modeled as single degree of freedom (SDOF) systems. Bridge piers of both circular and rectangular sections are analyzed for wide ranges of various design parameters considering several sub...
Development of a Tsunami Inundation Map in Detecting Tsunami Risk in Gulf of Fethiye, Turkey Dilmen, Derya Itir; Kemeç, Serkan; Yalçıner, Ahmet Cevdet; Duzgun, Sebnem; Zaytsev, Andrey (2015-03-01) NAMIDANCE tsunami simulation and visualization tool is used to create tsunami inundation maps showing quantitative maximum tsunami flow depths in Fethiye. The risk of an extreme, but likely earthquake-generated tsunami is estimated at Fethiye Bay for 14 probabilistic earthquake scenarios. The bay is located 36A degrees 39'5aEuro(3)N 29A degrees 7'23aEuro(3)E, southwestern Turkey, which has coastline to the eastern Mediterranean Sea. The tsunami simulation and inundation assessment are performed in three sta...
Probabilistic seismic hazard assessment of Eastern Marmara and evaluation of Turkish Earthquake Code requirements Ocak, Recai Soner; Gülerce, Zeynep; Department of Civil Engineering (2011) The primary objective of this study is to evaluate the seismic hazard in the Eastern Marmara Region using improved seismic source models and enhanced ground motion prediction models by probabilistic approach. Geometry of the fault zones (length, width, dip angle, segmentation points etc.) is determined by the help of available fault maps and traced source lines on the satellite images. State of the art rupture model proposed by USGS Working Group in 2002 is applied to the source system. Composite reoccurren...
Prediction of seepage and slope stability in a flume test and an experimental field case Ahmadi-Adli, Mohammed; Toker, Nabi Kartal; Huvaj Sarıhan, Nejan (2013-10-24) As a participant to round robin test, Middle East Technical University (METU) team performed infiltration and slope stability analyses to simulate a laboratory flume infiltration test and a field experiment, and calculated, for both cases, changes in the suction distribution and in slope stability due to rainfall and evaporation. The overall methodology, the details of the numerical model, calibrations to assess accurate soil properties and estimation procedure for both cases are explained and presented in ...
Systematic development of a new hysteretic damper based on torsional yielding: part I-design and development Milani, Ali Salem; Dicleli, Murat (2016-05-01) Analytical and experimental studies into the behavior of a new hysteretic damper, designed for seismic protection of structures is presented in two papers. Although the subject matter of the papers is a specific system, they are also intended as an illustration of practical application of diverse engineering tools in systematic development of an anti-seismic product. The Multi-directional Torsional Hysteretic Damper (MTHD) is a recently patented invention in which a symmetrical arrangement of identical cyli...

Citation Formats

G. Li Destri Nicosia and Z. Gülerce, “Selection of Ground Motion Prediction Equations for Probabilistic Seismic Hazard Assessments of the Izmit Bay Bridge,” presented at the 35th General Assembly of the European Seismological Commission, 2016, Accessed: 00, 2021. [Online]. Available: http://www.35esc2016.eu/.