Results 11 to 20 of about 7,346,228 (285)

Evaluation equivalent pulse of pulse-like ground motion to estimate the response of RC moment-resisting frames [PDF]

open access: yesJournal of Structural and Construction Engineering, 2017
In this study the ability of equivalent pulse extracted by a mathematical model from pulse-like ground motion is investigated in order to estimate the response of RC moment-resisting frames.
Seyed Rohollah Hosseini Vaez   +1 more
doaj   +2 more sources

An Empirical Model to Account for Spectral Amplification of Pulse-Like Ground Motion Records

open access: yesGeosciences, 2020
Near-source effects can amplify seismic ground motion, causing large demand to structures and thus their identification and characterization is fundamental for engineering applications.
Sara Sgobba   +3 more
doaj   +2 more sources

Method for Ranking Pulse-like Ground Motions According to Damage Potential for Reinforced Concrete Frame Structures

open access: yesBuildings, 2022
To rank the pulse-like ground motions based on the damage potential to different structures, the internal relationship between the damage potential of pulse-like ground motions and engineering demand parameters (EDPs) is analyzed in this paper.
Qinghui Lai   +4 more
doaj   +2 more sources

Seismic Performance of Midstory Isolated Structures under Near-Field Pulse-Like Ground Motion and Limiting Deformation of Isolation Layers [PDF]

open access: yesShock and Vibration, 2015
Excessive deformation of the isolation layer in midstory isolated structures may occur under strong near-field pulse-like ground motion, which would result in the overturning collapse of the superstructure.
Guiyun Yan, Fuquan Chen
doaj   +2 more sources

ACCURACY OF EQUIVALENT LINEAR MODELS FOR BILINEAR OSCILLATORS UNDER PULSE-LIKE GROUND MOTION [PDF]

open access: yesProceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2017
Nonlinear dynamic analysis is the most reliable approach for the assessment of structures under earthquake, provided that implemented computational method and adopted mechanical models are able to simulate properly material and geometrical nonlinearities.
QUARANTA, GIUSEPPE, MOLLAIOLI, Fabrizio
openaire   +4 more sources

Energy-based response prediction of reinforced concrete buildings with steel damper columns under pulse-like ground motions

open access: yesFrontiers in Built Environment, 2023
The response of structures under pulse-like ground motions is characterized by the large amount of energy input in a few cycles. Consequently, structures with insufficient strength may suffer severe damage owing to excessive deformation.
Kenji Fujii
doaj   +1 more source

Time evolution of ground motion-dependent depolarisation at linear colliders [PDF]

open access: yes, 2009
Future linear colliders plan to collide polarised beams and the planned physics reach requires knowledge of the state of polarisation as precisely as possible. The polarised beams can undergo depolarisation due to various mechanisms. In order to quantify
Helebrant, C.   +7 more
core   +4 more sources

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

open access: yesFrontiers in Built Environment, 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
doaj   +1 more source

Dimensional response analysis of bilinear systems subjected to non-pulselike earthquake ground motions [PDF]

open access: yes, 2011
The maximum inelastic response of bilinear single-degree-of-freedom systems when subjected to ground motions without distinguishable pulses is revisited with dimensional analysis by identifying time scales and length scales in the time histories of ...
Karavasilis, Theodore L.   +8 more
core   +1 more source

NGA-West2地震动预测模型对速度脉冲型地震动各分量的适用性

open access: yesDizhen xuebao, 2023
鉴于传统的地震动预测模型未考虑速度脉冲的影响,可能会低估近断层区域的地震风险,而新一代NGA-West2地震动预测模型对速度脉冲型地震动的适用性有待研究。首先,收集了2013年以来的近断层地震动记录,在充分考虑脉冲方向的不确定性条件下,基于小波方法定量地识别出速度脉冲记录,形成了最新的速度脉冲记录数据库;然后,利用小波提取出速度脉冲记录中的长周期脉冲信号,基于偏差参数分析方法,定量地研究NGA-West2地震动预测模型分别对速度脉冲原始记录和提取长周期脉冲后的残余记录的适用性。研究结果显示,NGA ...
Xiaofen Zhao   +3 more
doaj   +1 more source

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