Browsing by Author "Kurtuluş, Aslı"
Now showing items 1-17 of 17
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Blind identification of site effects and bedrock motion from surface response signals
Ghahari, S. F.; Abazarsa, F.; Jeong, C.; Kurtuluş, Aslı; Taciroglu, E. (Elsevier, 2018-04)A method for blind identification of site effects from two nearby ground surface response signals is presented. The proposed approach makes use of ground surface accelerations from two nearby stations to back-calculate the ... -
A comparison study between 1D and 2D site response analyses based on observed earthquake acceleration records
Shamekhi, Shima; Ansal, Mustafa Atilla; Kurtuluş, Aslı (Springer, 2023)The objective of the present work is to evaluate the necessity of 2D site response analysis based on the comparison among the peak ground and spectral accelerations recorded by Istanbul Rapid Response Network and Istanbul ... -
A computational workflow for rupture‐to‐structural‐response simulation and its application to Istanbul
Zhang, W. Y.; Restrepo, D.; Crempien, J. G. F.; Erkmen, Bülent; Taborda, R.; Kurtuluş, Aslı; Taciroglu, E. (Wiley, 2020-10)Scenario-based earthquake simulations at regional scales hold the promise in advancing the state-of-the-art in seismic risk assessment studies. In this study, a computational workflow is presented that combines (i) a ... -
A cost-benefit analysis of sensor quality and spatial density for rapid regional post-event seismic damage assessment: Application to Istanbul
Cheng, Q.; Liao, W.; Fei, Y.; Tian, Y.; Lu, X.; Zhang, W.; Ghahari, F.; Kurtuluş, Aslı; Taciroglu, E. (Elsevier, 2022-12)A quantitative evaluation of the influence of sensor quality and spatial density on the results of rapid regional seismic damage evaluations of buildings can provide an important reference for the deployment of a strong-motion ... -
Implications of site specific response analysis
Ansal, Mustafa Atilla; Tönük, G.; Kurtuluş, Aslı (Springer, 2018)Definition of design earthquake characteristics, more specifically uniform hazard acceleration response spectrum, on the ground surface is the primary component for performance based design of structures and assessment of ... -
Influence of accelerometer type on uncertainties in recorded ground motions and seismic damage assessment
Liao, W.; Fei, Y.; Ghahari, F.; Zhang, W.; Chen, P. Y.; Kurtuluş, Aslı; Yen, C. H.; Cheng, Q.; Lu, X.; Taciroglu, E. (Springer, 2022-07)Strong motion data recorded by strong-motion networks are essential for preventing and mitigating earthquake disasters, such as earthquake early warning and earthquake emergency responses, and the type of accelerometer can ... -
Influence of sensor density on seismic damage assessment: A case study for istanbul
Cheng, Q.; Fei, Y.; Lu, X.; Liao, W.; Zhang, W.; Chen, P. Y.; Kurtuluş, Aslı; Ghahari, F.; Vela, V.; Taciroglu, E. (Seismological Society of America, 2022-08)The strong ground motions (GMs) recorded by strong motion networks are significant to increase the accuracy of seismic damage assessment. However, the influence of sensor density on seismic damage assessment remains ... -
Interaction of a pile with layered-soil under vertical excitations: field experiments versus numerical simulations
Seylabi, E. E.; Kurtuluş, Aslı; Stokoe II, K. H.; Taciroglu, E. (Springer International Publishing, 2017-09)Data recorded during a field test involving an instrumented drilled shaft under vertical excitations are examined in order to (1) extract the soil–pile system’s dynamic impedance, and (2) to evaluate the small-strain shear ... -
An investigation of the effects of surface topography on the seismic structural demands for a region of istanbul
Zhang, W.; Taciroglu, E.; Restrepo, D.; Taborda, R.; Kurtuluş, Aslı; Ansal, Mustafa Atilla (CRC Press, 2019)In this study, we provide preliminary results from an ongoing study—funded by The Scientific and Technological Research Council of Turkey, TUBITAK—investigating the effects of site-specific surface topography and soil ... -
Microzonation with respect to ground shaking intensity
Ansal, Mustafa Atilla; Tönük, G.; Kurtuluş, Aslı (CRC Press, 2019)Seismic microzonation is conducted to assess the seismic hazard on the ground surface with respect to ground shaking intensity. A probabilistic seismic hazard study is conducted to define earthquake characteristics on the ... -
Observations from geotechnical arrays in Istanbul
Kurtuluş, Aslı; Ansal, Mustafa Atilla; Tönük, G.; Çetiner, B. (Springer, 2015-04-16)Few small earthquakes with local magnitude slightly larger than ML = 4 were recorded by geotechnical downhole arrays that have been recently deployed in the west side of Istanbul. Same events were also recorded by Istanbul ... -
Regional-scale seismic fragility, loss, and resilience assessment using physics-based simulated ground motions: An application to istanbul
Zhang, W.; Chen, P. Y.; Crempien, J. G. F.; Kurtuluş, Aslı; Arduino, P.; Taciroglu, E. (Wiley, 2023-05)Using results from 57 large-scale physics-based fault-rupture and wave propagation simulations, this research aims to evaluate the seismic risk, loss, and resilience of more than 16,000 reinforced concrete buildings in the ... -
A simplified approach for site-specific design spectrum
Ansal, Mustafa Atilla; Tönük, G.; Kurtuluş, Aslı (Springer, 2018)The design acceleration spectrum requires site investigations and site-response analyses in accordance with the local seismic hazard. The variability in earthquake source and path effects may be considered using a large ... -
Site response from Istanbul vertical arrays and strong motion network
Ansal, Mustafa Atilla; Kurtuluş, Aslı; Tonuk, G. (Earthquake Engineering Research Institute ( EERI ), 2014)In the framework of Istanbul Microzonation Project for the European side, the investigated region was divided by a grid system of 250m×250m and site investigations were performed for each cell based on borings and in-situ ... -
Site specific response analysis for performance based design earthquake characteristics
Tönük, G.; Ansal, Mustafa Atilla; Kurtuluş, Aslı; Çetiner, B. (Springer Science+Business Media, 2014-06)During strong earthquakes, seismic waves travelling towards the ground surface alter the engineering characteristics of the soil layers and consequently the characteristics of travelling seismic waves also change with ... -
A suite of broadband physics-based ground motion simulations for the Istanbul region
Zhang, W.; Crempien, J. G. F.; Kurtuluş, Aslı; Chen, P.-Y.; Arduino, P.; Taciroglu, E. (Wiley, 2023-04)Physics-based earthquake ground motion simulations (GMS) have acquired significant growth over the last two decades, mainly due to the explosive developments of high-performance computing techniques and resources. These ... -
Velocity pulse effects of near-fault earthquakes on a high-speed railway vehicle-ballastless track-benchmark bridge system
Chen, L. K.; Kurtuluş, Aslı; Dong, Y. F.; Taciroglu, E.; Jiang, L. Z. (Taylor & Francis, 2022-09-02)The near fault (NF) line waves send out signal envelopes that oscillate over lengthy periods of time with periodic impulses. Like train bridges, train tracks demonstrate comparable track-bridge (TB) motion dynamics. Using ...
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