The field and laboratory evidence of nonlinear soil behaviour, even at small strains, emphasizes the importance employing methods in seismic ground response analysis. Additionally, determination dynamic characteristics layers always includes some degree uncertainty. Most previous stochastic studies analysis have focused only on variability parameters, effect sample location has been mostly igno...

In this paper, a seismic hazard assessment (SHA) of the Shigo Kas hydropower project has been performed by deterministic and probabilistic approaches. The previously developed MATLAB-based code used for SHA, incorporating local site effects through deep soil analysis. On other hand, CRISIS 2007 diffuse areal source zones. latest updated earthquake instrumental historical catalogs have developed...

The earthquake ground motions of over 1700 earthquakes recorded on a small-aperture strong-motion array in south Iceland (ICEARRAY I) that is situated relatively uniform site condition characterized as rock, exhibit statistically significant spatial variation ground-motion amplitudes across the array. Both and microseismic horizontal-to-vertical spectral ratios (HVSR) have been shown to distinc...

Current studies lack probabilistic evaluations on the performance of fault-crossing bridges. This paper conducts seismic fragility analyses to evaluate cable-stayed bridges with effects fault ruptures. Synthetic across-fault ground motions are generated using existing simulation methods for low-frequency pulses and high-frequency residuals. Incremental dynamic analysis is utilized generate resp...

Design spectra are commonly defined for a constant value of hazard associated to an “ultimate” limit state (LS) reference, typically 10% in 50 years. Given specific structure, this approach results different limit-state exceedance risk levels even sites characterized by the same design peak ground acceleration (PGA), mainly because differences curve shape/slope. Instead, Risk Targeted maps (fir...

The feasibility of an earthquake early warning Shield in Greece is being explored as a European demonstration project. This will be the first early warning system in Europe. The island of Revithoussa is a liquid natural gas storage facility near Athens from which a pipeline runs to a gas distribution centre in Athens. The Shield is being centred on these facilities. The purpose here is to analy...

Fragility surfaces give the probability of failure for structural or non-structural systems as a function of two parameters, the earthquake magnitude and epicentral distance. These parameters provide a unique characterization of the ground motion. In contrast, the current characterization of the ground motion by a single parameter, e.g., the Peak Ground Acceleration (PGA), can be unsatisfactory...

Seismic assessments of historical masonry buildings are affected by several sources epistemic uncertainty. These mainly the material and modelling parameters displacement capacity elements. Additional uncertainty lie in non-linear connections, such as wall-to-wall floor-to-wall connections. Latin Hypercube Sampling was performed to create 400 sets 11 parameters. The proposed approach is applied...