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Earthquake potential
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Earthquakes are often difficult to predict and have the potential to cause great damage to people and property, most of which are related to the collapse of the soil-structure system and geotechnical problems.
8p
virichard
28-03-2024
5
1
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Continued part 1, part 2 of ebook "Geotechnical earthquake engineering" provides readers with content including: liquefaction; features of liquefaction-induced damages; mechanism of onset of liquefaction; assessment of liquefaction potential; behavior of soil undergoing cyclic undrained loading; in-situ tests on liquefaction potential of subsoils; post-liquefaction behavior of sandy ground;...
343p
dieptieuung
19-07-2023
5
3
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The southern part of the Western Anatolia Extensional Province is governed by E-W-trending horst-graben systems and NW-SE-oriented active faults. The NW-striking Yatağan Fault is characterised by an almost pure normal sense of motion with a minor dextral strike slip component. Although the settlements within the area have been affected by several earthquake events since ancient times (~2000 BCE), the earthquake potential and history of the Yatağan Fault has remained unknown until a few years ago.
21p
tanmocphong
29-01-2022
13
1
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The Aegean region is one of the most seismically active regions in Turkey and comprises the Hellenic Arc, Greece, and Western Turkey. The Tuzla Fault, which lies between the town of Menderes and Cape Doğanbey, is one of the major seismic threats in western Turkey due to its seismic potential to generate a major earthquake (M 6, near Doğanbey Cape in 1992) and proximity to the city of İzmir which sustained damage due to the earthquake that occurred in the Aegean Sea on October 30th, 2020.
11p
tanmocphong
29-01-2022
9
1
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The evaluation of liquefaction potential of soil due to an earthquake is an important step in geosciences. This article examines the capability of Minimax Probability Machine (MPM) for the prediction of seismic liquefaction potential of soil based on the Cone Penetration Test (CPT) data. The dataset has been taken from Chi–Chi earthquake. MPM is developed based on the use of hyperplanes. It has been adopted as a classification tool. This article uses two models (MODEL I and MODEL II). MODEL I employs Cone Resistance (qc) and Cyclic Stress Ratio (CSR) as input variables.
6p
trinhthamhodang1
16-11-2019
21
1
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Medium to large b-values (0.74, 0.75, 0.76, 0.79 and 1.01) are accompanied with small to large strain rates (1.42×10 -9 , 2.09×10 -9 , 2.19×10 -9 , 4.15×10 -9 and 1.24×10 -8 ) in northwestern parts of Zagros indicating less frequent moderate to large earthquakes. Recurrence intervals of large earthquakes (M>6) in southeastern parts of Zagros (17, 43 and 48 years) and central parts of Zagros (24, 27 and 59 years) are shorter than northwestern parts (27, 51, 79 and 130 years).
20p
meriday
26-04-2019
15
2
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The results showthat considering the TSMD systemon the fifth floor leads to the most reduction in displacement and velocity, not only for the roof, but also for the other floors as well. For the system under study, comparing with the noncontrolled system, a reduction of about 31% on maximumdisplacement and 42% on maximum velocity of the top floor are obtained.
10p
meriday
26-04-2019
20
0
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This paper presents a methodology to utilize performance-based seismic design procedure for evaluating the effect of heating in lead core of isolated structures with lead-rubber bearing based on collapse assessment and seismic loss estimation. Nonlinear archetypes of conventional 4-story steel special moment resisting frame, isolated intermediate moment resisting frame with and without heating in lead core effect are compared with each other under far-field (FF) and near-field earthquakes.
11p
meriday
26-04-2019
17
1
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The C-mean clustering algorithm is modified and adapted in order to be applicable in the current study. In addition, six groups are defined for different focal mechanisms and soil types. Then, the GMPE clustering is performed for each group and the obtained clusters are proposed and discussed. The results confirm that the obtained spectral ordinated from GMPEs of different clusters can meaningfully differed from each other.
11p
meriday
26-04-2019
7
0
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The results indicated that slope effect leads to up to 37% increase in the damage probability and illustrated that amplification factor had a range of 1.1 to 1.35, moreover, in comparison with slight states, the probability damage growth rate in moderate and extensive states are higher.
11p
meriday
26-04-2019
29
0
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In this research, the performance abilities associated with tube type lateral load resistant framed systems are studied in order to assess the seismic response parameters ofsteel tall buildings under both far and near-field records. For this purpose, four 30 story structural models with separated framed tube-based skeletons were selected and designed.
14p
meriday
26-04-2019
21
0
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Ongoing research in the development of design philosophies for earthquake resistant structures over the past few decades was initially based on the strength and elastic analysis. Later, design philosophies recognized the deformation to be an important parameter to be considered in design following nonlinear analysis. The maximum design lateral force, for a particular earthquake, acting on structures having multiple natural time periods can be obtained from inelastic response spectrum.
18p
meriday
26-04-2019
22
0
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In this paper, a model of earthquake forecast is presented to assess the long-term probabilities of future earthquakes with moderate magnitudes for a region including Iran (latitude 25-40° and longitude 44-62°). The model estimates a coupled rate of magnitude, space and time for future seismicity using a spatial-temporal Poisson process.
8p
meriday
26-04-2019
23
0
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In current work, an effective method is introduced for the optimal cross-section distribution in steel moment resisting frames under severe earthquakes by means of uniform deformation theory and adaptive method. The main goal is to distribute the construction material (weight) along the height of the structure in such a way that the lowest damage due to earthquakes is obtained. In adaptive method, materials gradually transfer from strong parts to weak parts by an iteration procedure during nonlinear time history analysis.
12p
meriday
26-04-2019
18
0
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The data from a local network of 21 and 19 acceleration recordsfor the first and second main shocks have been used to estimate Q-relationship in 30 stations. The seismic hazard map for this region illustrates that most of the area in this province is located within high relative risk and characterized by a large number of heterogeneities.
15p
meriday
26-04-2019
22
1
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The study includes RC moment resisting frames with 3, 6 and 10 stories considering two types of soil classifications (Type II and III) and two alternatives of ductility levels (intermediate and high), as defined in standard 2800.
10p
meriday
26-04-2019
18
0
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In this study, the seismic behavior of steel structures with various heights under the SSI effect have been studied. For this purpose, three steel structures including 9, 15 and 20 story frames were modeled using Opensees.
13p
meriday
26-04-2019
25
0
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The main goal of an Earthquake Early Warning (EEW) system is to reduce the damaging effects of the hazardous earthquakes. The characterization of an earthquake for EEWincludes most importantly, the estimates of itssize (magnitude) and location. In this study, the distance and magnitude of the selected earthquakes were estimated using the envelope ofthe initial part of the P-waveforms deploying a single seismic record.
11p
meriday
26-04-2019
27
0
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This study aims to rigorously examine the influences of the vertically propagating recorded strong ground motions on the trapezoidal-shaped hills in different sizes and shape ratios. In order to generalize the results of the study, one-dimensional as well as two-dimensional analyses are conducted. Then, intended results are represented in dimensionless form as a result of which amplification ratio patterns are extracted and compared with each other in terms of displacement, velocity, and acceleration.
14p
meriday
26-04-2019
27
1
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In this paper, the earthquake-induced liquefaction susceptibility of Hanoi city is assessed using the recent published geological and geomorphologic data.
16p
meolep1
28-11-2018
28
1
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