Results 11 to 20 of about 52,109 (218)

Fatigue‐resistant Fe‐Mn‐Si‐based alloy seismic dampers to counteract long‐period ground motion

Japan Architectural Review, 2021
In recent years, resonance in high‐rise buildings due to long‐period ground motion, which induces large‐amplitude cyclic deformation of seismic dampers, has become a matter of significant concern.
Yasuhiko Inoue, Atsumichi Kushibe, Kenji Umemura, Yasunori Mizushima, Takahiro Sawaguchi, Terumi Nakamura, Hiroaki Otsuka, Yuya Chiba   +7 more
doaj   +1 more source

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

Study on seismic isolation system for long-period ground motion

Nihon Kikai Gakkai ronbunshu, 2015
In this paper, the authors have developed a new type of horizontal seismic isolation system which has large effect of vibration isolation for ordinary earthquakes and suppresses the resonance of the isolation system due to long-period ground motions ...
Akira ISOBE, Hiroyuki KIMURA
doaj   +1 more source

Quantification of rupture directivity effects on strong ground motion during the 8 January 2022 MS6.9 Menyuan earthquake in Qinghai, China

Frontiers in Earth Science, 2023
On 8 January 2022, an MS6.9 earthquake occurred in the Menyuan county, Qinghai province at the northeastern margin of the Tibetan Plateau. A dense observatory network consisting of accelerographs and intensity meters has obtained many acceleration ...
Junju Xie, Wencai Wang, Wencai Wang, Zhao An, Zhao An, Kewei Li, Kewei Li, Xiufeng Tian, Xiufeng Tian, Lina Wu, Shude Gao, Shude Gao, Weidong Zhang, Jie Yuan   +13 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