Supplemental Device to Improve the Performance of Seismic-Isolated Bridges in Near-Fault Zones

2008-07-13
Proceedings of the Fourth International Conference on Bridge Maintenance, Safety and Management, IABMAS'08, 13 Temmuz 2008

Suggestions

Performance Based Design of Seismic Isolated Bridges in Near-Fault Zones Using Elastic-Gap Devices
Dicleli, Murat (2009-06-28)
This paper investigates the efficiency of using elastic-gap devices (EGDs) to improve the performance of seismic-isolated bridges (SIBs) in near-fault (NF) zones. The EDG is intended to function at two performance levels under service and maximum considered design level (SDL and MCDL) NF earthquakes to reduce isolator displacements (IDs) while keeping the substructure forces (SFs) at reasonable levels. Analyses of structural models of bridges with EGDs revealed that providing EGD is beneficial for decreasin...
Reconnaissance of 2020 M 7.0 Samos Island (Aegean Sea) earthquake
Çetin, Kemal Önder; Sextos, Anastasios; Stewart, Jonathan P. (2021-08-01)
The Samos Island (Aegean Sea) Earthquake occurred on 30 October 2020. It produced a tsunami that impacted coastal communities, ground shaking that was locally amplified in some areas and that led to collapse of structures with 118 fatalities in both Greece and Turkey, and wide-ranging geotechnical effects including rockfalls, landsliding, and liquefaction. As a result of the global COVID-19 pandemic, the reconnaissance of this event did not involve the deployment of international teams, as would be typical ...
Quantitative approach to rapid seismic evaluation of slab-on-girder steel highway bridges
Dicleli, Murat (1996-01-01)
A quantitative approach follows for developing a methodology for the rapid seismic evaluation and ranking of slab-on-girder steel highway bridges. In the development of this methodology, analytical expressions are introduced to calculate the seismically induced forces and displacements in bridge components, first assuming that damage to bearings is not acceptable and then removing this constraint. In the latter case, the superstructure is assumed to become unrestrained and slide on its supports. The seismic...
Generic site amplification factors for northwestern Türkiye and their use in ground motion simulations
Muratoğlu, Gamze; Askan Gündoğan, Ayşegül; Department of Civil Engineering (2022-7-29)
Earthquake ground motions are influenced by source, path and local site properties. Among these three factors, local site conditions have a great effect on ground shaking and thus the structural damages observed during large earthquakes. Soil layers on top of hard rock can amplify the ground motions, which makes it essential to quantify the site amplifications. In this thesis, generic site amplification factors in Northwestern Türkiye are obtained according to the NEHRP (National Earthquake Hazards Reductio...
Hybrid-Empirical Ground Motion Estimations for Georgia
Tsereteli, Nino; Askan Gündoğan, Ayşegül; Hamzehloo, Hossein (2016-10-01)
Ground motion prediction equations are essential for several purposes ranging from seismic design and analysis to probabilistic seismic hazard assessment. In seismically active regions without sufficiently strong ground motion data to build empirical models, hybrid models become vital. Georgia does not have sufficiently strong ground motion data to build empirical models. In this study, we have applied the host-totarget method in two regions in Georgia with different source mechanisms. According to the tect...
Citation Formats
M. Dicleli, “Supplemental Device to Improve the Performance of Seismic-Isolated Bridges in Near-Fault Zones,” presented at the Proceedings of the Fourth International Conference on Bridge Maintenance, Safety and Management, IABMAS′08, 13 Temmuz 2008, Seoul, Güney Kore, 2008, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71195.