Results 11 to 20 of about 9,353 (260)
Macrozonation of Seismic Transient Ground Displacement and Permanent Ground Deformation of Iran [PDF]
, 2020 Abstract. Iran is located on the Alpide earthquake belt, in the active collision zone between the Eurasian and Arabian plates. This issue makes Iran a country that suffers from geotechnical seismic hazards associated with frequent destructive earthquakes. Also, according to the rapid growth of population and demands for construction lifelines, the risk
Saeideh Farahani +2 more
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Mechanism of Permanent Displacement of Ground Caused by Seismic Liquefaction
Soils and Foundations, 1992 ABSTRACT This paper concerns with the mechanism of the permanent lateral displacement of ground induced by seismic liquefaction. The present study consists of three series of shaking table tests of both large and small scales. The test results demonstrated that the ground movement occurs in the same direction as that of the total head gradient as ...
SASAKI, YASUSHI +6 more
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Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures [PDF]
Numerical Methods in Civil Engineering, 2018 Fling-step and forward directivity are two important characteristics of near-field earthquakes. Forward directivity occurs when the rupture propagates toward the site and arises in fault‐normal direction for strike‐slip faults.
B. Rezayibana +2 more
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Dizhen xuebao, 2020 本文推导了基于位移激励计算单自由度体系拟速度谱公式，通过构造的脉冲位移时程对公式精度进行了验证；之后利用小波变换去除强震记录噪声而保留地震动永久位移，再基于去趋势项方法和滤波方法去除永久位移后，计算拟速度谱。算例结果表明：短周期段内，不保留永久位移的位移激励拟速度谱值与保留永久位移的位移激励拟速度谱值相差很小；中长周期段内，不保留永久位移的位移激励拟速度谱值总体上小于保留永久位移的位移激励拟速度谱值，且不保留永久位移时，滤波方法引起的拟速度谱降幅大于去趋势项方法所引起的拟速度谱降幅。因此 ...
Guolin Xu +3 more
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Stress Calculation Method Designed of Pipeline in Landslide Section Based on SBAS-Insar and Finite Element Method [PDF]
E3S Web of Conferences, 2023 The permanent ground displacement of geological disasters is the main reason inducing large additional axial stress of pipelines. This paper presents a surface displacement measurement method above the pipeline based on SBAS-InSAR remote sensing ...
Shi Ning +4 more
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Estimating Maximum Rotation of Beam of R.C. Momentâresisting Frames Using Equivalent Pulses of Near-fault Motions [PDF]
مجله مدل سازی در مهندسی, 2017 Seismic events all over the world have shown that ground motions in vicinity of causative faults (within a distance of 15 km from the fault) may be categorized as large-velocity pulse and large-displacement fault which have the potential to cause ...
Seyed Rohollah Hoseini Vaez +1 more
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Seismic Fragility Analysis of Retaining Walls Dependent on Initial Conditions
Geosciences, 2023 Fragility curves of retaining walls constitute an efficient tool for the estimation of seismic risk and can be utilized for prevention from potential damage or for immediate decision-making.
Elisavet-Isavela Koutsoupaki +3 more
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The probabilistic on and off fault displacement hazard analysis for high-speed railways crossing the middle Xiaojiang fault zone [PDF]
Railway SciencesPurposeThe rapid expansion of high-speed railway (HSR) networks in Western China has increased the exposure of linear infrastructure to active faults. This study establishes and applies a probabilistic fault displacement hazard analysis (PFDHA) framework
Jiahui Feng
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Prediction of Permanent Displacement of Liquefied Ground by Means of Minimum Energy Principle
Soils and Foundations, 1992 ABSTRACT The permanent displacement of ground induced by seismic liquefaction is known to significantly damage lifeline networks. This paper is concerned with the prediction of the maximum possible displacement that could occur when the state of soil liquefaction continues for a sufficiently long period.
TOWHATA, IKUO +5 more
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Geosciences, 2018 We investigated the contribution of earthquake-induced surface movements to the ground displacements detected through Interferometric Synthetic Aperture Radar (InSAR) data, after the Mw 3.9 Ischia earthquake on 21 August 2017.
Matteo Albano +10 more
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