Results 21 to 30 of about 12,740,775 (251)

Interlayer Isolation Structures Considering Soil–Structure Interaction under Long-Period Ground Motions: An Experimental Analysis

Applied Sciences, 2023
After coupling long-period seismic motions with the soil–structure interaction (SSI) effect, isolated structures can easily be resonated, and the seismic response of the structure is significantly enhanced.
Liying Xu, Jianri Shi, Yingxiong Wu, Youqin Lin   +3 more
doaj   +1 more source

Application of wavelet for seismic wave analysis in Kathmandu Valley after the 2015 Gorkha earthquake, Nepal

Geoenvironmental Disasters, 2020
In this paper, we estimate the seismogenic energy during the Nepal Earthquake (25 April 2015) and studied the ground motion time-frequency characteristics in Kathmandu valley. The idea to analyze time-frequency characteristic of seismogenic energy signal
Binod Adhikari, Subodh Dahal, Monika Karki, Roshan Kumar Mishra, Ranjan Kumar Dahal, Sudipta Sasmal, Virginia Klausner   +6 more
doaj   +1 more source

Estimation of broadband ground motion characteristics considering source parameter uncertainty and undetermined site condition in densely populated areas of Pingwu

Frontiers in Earth Science, 2023
Three destructive earthquakes occurred in Pingwu and Songpan, Sichuan Province, China, between August 16 and 23, 1976. Due to the seismic monitoring capability at that time, the ground motion characteristics of these earthquakes are very vague.
Zhiwei Ji, Zongchao Li, Jize Sun, Mengtan Gao, Tiefei Li, Ting Huang, Na Li, Xiangyun Guo   +7 more
doaj   +1 more source

Effects of random 3D upper crustal heterogeneity on long-period (≥ 1 s) ground-motion simulations

Earth, Planets and Space, 2018
The effects of the short-wavelength heterogeneity of the crustal structure on predicted ground motion at periods of 1 s and longer were investigated by conducting three-dimensional finite-difference simulations using a detailed realistic velocity model ...
Asako Iwaki, Takahiro Maeda, Nobuyuki Morikawa, Shunsuke Takemura, Hiroyuki Fujiwara   +4 more
doaj   +1 more source

Fling-Step Recovering from Near-Source Waveforms Database

Geosciences, 2021
We present an upgraded processing scheme (eBASCO, extended BASeline COrrection) to remove the baseline of strong-motion records by means of a piece-wise linear detrending of the velocity time history.
Erika Schiappapietra, Chiara Felicetta, Maria D’Amico   +2 more
doaj   +1 more source

P-Delta Effect on Residual Displacement and Collapse Capacity of SDOF Systems during Long and Short Duration Earthquakes [PDF]

پژوهش‌های زیرساخت‌های عمرانی, 2022
In structural analysis, P-Delta effect refers to the changes in internal forces due to P-Delta moment which can be found by multiplying gravity load (P) by the lateral displacement of structure for earthquake lateral load (Delta).
Mohammadhosein Hajimohammadi, Horr Khosravi, Reza Dezvareh   +2 more
doaj   +1 more source

Hysteretic–Viscous Hybrid Damper System for Long-Period Pulse-Type Earthquake Ground Motions of Large Amplitude

Frontiers in Built Environment, 2020
This paper aims to develop a hysteretic–viscous hybrid (HVH) damper system for long-period pulse-type earthquake ground motions of large amplitude.
Shoki Hashizume, Izuru Takewaki
doaj   +1 more source

Long-period directivity pulses of strong ground motion during the 2023 Mw7.8 Kahramanmaraş earthquake

Communications Earth & Environment, 2023
Damages due to large earthquakes are influenced by broadband source effects that remain enigmatic. Here we develop a broadband (0–10 Hz) source model of the disastrous 2023 Mw7.8 Kahramanmaraş, Türkiye, earthquake by modeling recordings of 100 stations ...
František Čejka, Jiří Zahradník, Fatih Turhan, Efthimios Sokos, František Gallovič   +4 more
doaj   +1 more source

Quantitative bounded method of special long-period ground motions

Magazine of Civil Engineering, 2022
The resonance effect of special long-period ground motions to (super) high-rise buildings is significant, which is likely to cause serious damage to these long-period structures. Therefore, the influence of long-period ground motions cannot be ignored in
Cheng Yu, Dong Yao-Rong, Wang Yuan-Yuan, Qin Li, Li Ye-Xue, Bai Guo-Liang   +5 more
doaj   +1 more source

Presentation1_Influence of the angle of seismic incidence of long-period pulse-like ground motion on an irregular base-isolated building.pdf

, 2022
In general, isolators and dampers used in seismically isolated buildings are designed to be isotropic in any horizontal direction. However, in the case of buildings with plan irregularities, their nonlinear responses depend on the direction of seismic ...
Kenji Fujii (8656071)
core   +1 more source