Results 21 to 30 of about 355,000 (288)
Geoscience Frontiers, 2016 A new model is derived to predict the peak ground acceleration (PGA) utilizing a hybrid method coupling artificial neural network (ANN) and simulated annealing (SA), called SA-ANN.
M. Gandomi +3 more
semanticscholar +3 more sources
Prediction of peak ground acceleration using ϵ-SVR, ν-SVR and Ls-SVR algorithm
Geomatics, Natural Hazards & Risk, 2017 In this paper, a prediction model is developed using support vector machine for forecasting the parameter associated with ground motion of a seismic signal. The prediction model is developed using three learning algorithms, ϵ-support vector regression, ν-
Sonia Thomas, G.N. Pillai, Kirat Pal
doaj +2 more sources
Soil Dynamics and Earthquake Engineering, 2016 Ground motion intensity measures such as the peak ground acceleration (PGA) and the pseudo-spectral acceleration (PSA) at two sites due to the same seismic event are correlated.
Thomas Wagener +4 more
semanticscholar +3 more sources
Earthquake Engineering & Structural Dynamics, 2023 Predicting peak time‐domain ground‐motion parameters, such as peak ground acceleration (PGA), peak ground velocity, and peak ground displacement at a specific location, is challenging because of the limited number of recorded ground motions and the ...
N. Saleem +3 more
semanticscholar +1 more source
Dizhen xuebao, 2021 本文随机选取了100条具有不同地震动峰值特征参数的地震动记录，通过基线校正、积分等方法获取每条地震动的峰值加速度（PGA）、峰值速度（PGV）和峰值位移（PGD）三个参数，进而基于有限元数值模拟，通过对比同一个观测点不同峰值特征参数的特性与不同观测点同一峰值特征参数的特性来研究土坡的地震响应规律，分析各地震动峰值特征参数与土坡地震响应的相关性。计算结果表明：PGA，PGV和PGD与土坡地震响应都具有良好的正相关性，其相关性系数平均值分别为0.868，0.981，0.926 ...
Lurong Du +3 more
doaj +1 more source
Peak Ground Acceleration Models Predictions Utilizing Two Metaheuristic Optimization Techniques
Latin American Journal of Solids and Structures, 2022 Peak ground acceleration (PGA) is frequently used to describe ground motions accurately to defined the zone is critical for structural engineering design.
M. Hason +5 more
semanticscholar +1 more source
Earthquake Science, 2022 Strong ground motions caused by earthquakes with magnitudes ranging from 3.5 to 6.9 and hypocentral distances of up to 300 km were recorded by local broadband stations and three-component accelerograms within Georgia’s enhanced digital seismic network ...
Nato Jorjiashvili +4 more
doaj +1 more source
Frontiers in Earth Science, 2021 On-site earthquake early warning techniques, which issue alerts based on seismic waves measured at a single station, are promising, and have performed quite successfully during some damaging earthquakes.
T. Hsu, Atteroni Pratomo
semanticscholar +1 more source
Geomatics, Natural Hazards & Risk, 2021 The probabilistic seismic hazard analysis is conducted for the seismically active National Capital Region (NCR) of India, one of the most densely populated regions in the world, to quantify the peak ground acceleration (P GA) at bedrock level by ...
Laxmi Gupta, Navdeep Agrawal, J. Dixit
semanticscholar +1 more source
Journal of King Saud University - Engineering Sciences, 2021 Peak ground acceleration ( PGA ) is one of the critical factors that affect the determination of earthquake intensity. PGA is generally utilized to describe ground-motion in a particular zone, and is able to efficiently predict the parameters of site ...
M. Hason, A. N. Hanoon, A. Abdulhameed
semanticscholar +1 more source