Auflistung Nach Schlagwort "Earthquakes"
Anzeige der Dokumente 1-20 von 43
-
Assessment of ssi effects on a seismically isolated multi-span bridge under bi-directional seismic excitation
(2010)Elevated highway bridges are important elements in modern society infrastructure. Due to their strategic importance, loss of functionality in an earthquake is not an acceptable performance criterion. Observed performance ... -
The Canea earthquake of 1595
(Ανδρέας Γ. Καλοκαιρινός, 1955) -
Effect of spatial variability of soil properties on permanent seismic displacements of slopes with uniform load
(2021)The purpose of this study is to investigate the development of permanent displacements of earth slopes, with spatially varying properties and a uniform surface load, subjected to a strong seismic excitation. The uncertainties ... -
Efficient numerical modeling of liquefaction-induced deformations of soil structures
(2008)A new numerical methodology is presented for the simulation of the non cohesive soil response under small, medium and large cyclic shear strains, with special interest given to liquefaction phenomena. The new methodology ... -
Experimental and numerical study of the behaviour of high dissipation metallic devices for the strengthening of existing structures
(2011)The use of steel bracing systems for the strengthening of existing reinforced concrete (RC) frames may lead to increase of both strength and stiffness. However, in most of the cases the main target is the increase of the ... -
Experimental investigation of jet pulse control on flexible vibrating structures
(2016)The feasibility of applying on-line fluid jet pulses to actively control the vibrations of flexible structures subjected to harmonic and earthquake-like base excitations provided by a shake table is explored. The operating ... -
Failure analysis of a welded steel pipe at Kullar fault crossing
(2017)The seismic response of a 2200-mm-diameter welded steel pipe at strike slip Kullar fault crossing in Izmit, Kocaeli during 1999 Kocaeli earthquake is investigated. The pipe was crossing the fault-line with an angle of 55° ... -
Failure mechanisms of landfills under dynamic loading
(2008)Seismic stability of above-ground landfills is an issue of extreme engineering interest, and the proper implementation of the corresponding analyses requires dealing with several uncertainties related mainly to the special ... -
Fiber Reinforced Polymer (FRP) Confined Circular Columns: Compressive Strength Assessment
(2020)Fiber Reinforced Polymer (FRP) composites may be successfully used in numerous structural strengthening applications. One of these applications is as a confining material for reinforced concrete structural elements. Research ... -
Finite element analysis of buried steel pipelines under strike-slip fault displacements
(2011)The present paper investigates the mechanical behavior of buried steel pipelines, crossing active strike-slip tectonic faults. The fault plane is vertical and crosses the pipeline axis at a certain angle. The interacting ... -
Finite element analysis of sloshing in horizontal-cylindrical industrial vessels under earthquake loading
(2005)The present paper presents a finite-element formulation for earthquake-induced sloshing in horizontal-cylindrical industrial vessels. Assuming small-amplitude free-surface elevation, a linearized sloshing problem is obtained, ... -
Finite element model validation and predictions using dynamic reduction techniques
(2011)Finite element (FE) model updating and validation techniques are formulated as single and multi-objective optimization problems. A multi-objective optimization framework results in multiple Pareto optimal models that are ... -
FUll-scale shake table experiments and vibration tests for assessing the effectiveness of textile materials for retrofitting masonry buildings
(2011)Full-scale shake table seismic experiments and low amplitude vibration tests on a masonry building are carried out to assess its seismic performance as well as study the effectiveness of a new textile material for retrofitting ... -
Influence of random soil strength properties on the earthquake vulnerability of slopes with embedded oil and natural gas pipelines
(2021)Numerous pipeline systems carrying oil and natural gas, passing through geologically unstable areas worldwide are vulnerable to seismically induced slope instability, large ground displacements and settlements. Such ground ... -
Investigation of the impact of seismic zone to the cost of construction of a 5-storey R/C building
(2021)Residing in a country like Greece, where the earthquake is a common phenomenon in most of its areas, the need for constructing earthquake resistant buildings that will provide security and functionality to their residents ... -
Joint estimation of states and input in linear structural dynamics
(2011)The problem of jointly estimating the input forces and states of a structure from a limited number of acceleration measurements is addressed. Utilizing a model-based joint input-state estimation algorithm originally developed ... -
Learning about earthquakes - Volcanoes and safety measures with the use of ICT in primary school
(2008)This study refers to Greek primary school students' conceptions regarding volcanoes, earthquakes and safety measures, as well as to the evolution of these conceptions after students' participation in a constructivistcollaborative ... -
Microwave frequency dissemination systems as sensitive and low-cost interferometers for earthquake detection on commercially deployed fiber cables
(2016)We experimentally demonstrate a microwave frequency dissemination system operating as a sensitive interferometric sensor of seismic waves on commercially deployed fiber networks in Attika, Greece. Efficient detection of ... -
Microwave frequency dissemination systems as sensitive and low-cost interferometers for earthquake detection on commercially deployed fiber cables
(2022)We experimentally demonstrate a microwave frequency dissemination system operating as a sensitive interferometric sensor of seismic waves on commercially deployed fiber networks in Attika, Greece. Efficient detection of ... -
Microwave frequency dissemination systems as sensitive and low-cost interferometers for earthquake detection on commercially deployed fiber cables
(2022)We experimentally demonstrate a microwave frequency dissemination system operating as a sensitive interferometric sensor of seismic waves on commercially deployed fiber networks in Attika, Greece. Efficient detection of ...