Results 11 to 20 of about 2,820,746 (300)
Dynamic seismic analysis of bridge using response spectrum and time history methods
Acta Technica Jaurinensis, 2021 Dynamic analysis is very important to better understand the performance of structural elements of a bridge. For this purpose, a seismic analysis of an Algerian highway bridge designed with the new Algerian seismic bridge regulation (RPOA -2008) was ...
Marame Brinissat +2 more
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2021年9月16日四川泸县MS6.0地震强地面运动特征分析
Dizhen xuebao, 2022 2021年9月16日4时33分在四川省泸州市泸县发生MS6.0地震，震中附近的强震动观测台网获取了1 320组三分向加速度记录，对有效记录进行常规处理后计算出地震动相关参数，并利用克里金插值方法得到峰值加速度PGA、峰值速度PGV和拟加速度反应谱的空间分布图。结果显示，极震区与中远场的长轴方向有较大差异，地震动表现出沿断裂走向衰减较慢的特性。通过与常用衰减关系预测值进行对比，分析了PGA和多个周期的拟加速度反应谱随距离的衰减特性，结果显示此次地震的PGA相比衰减关系预测值偏小 ...
Pingping Li +6 more
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Statistical linearization based estimation of the peak response of nonlinear systems subject to the EC8 design spectrum [PDF]
, 2008 A stochastic approach is proposed to obtain reliable estimates of the peak response of nonlinear systems to excitations specified via a response∕design seismic spectrum.
Giaralis, A., Spanos, P. D.
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Improvement in seismic performance of building with BRBs [PDF]
Журнал інженерних наук, 2021 Buckling restrained braces (BRBs) are a somewhat ongoing improvement in the field of seismic-safe steel structures. Their unmistakable component is the non-clasping conduct regularly accomplished by encasing a steel center in a substantially filled ...
Pawar R. S., Patil, J.
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Dizhen xuebao, 2022 对地震动参数衰减关系应用时涉及的地震动参数、地震参数、基本模型、回归方法等方面的要点进行了阐述。以华北地区为例，简要介绍了数十年我国工程抗震设防应用中常用的几组浅壳地震峰值加速度、加速度反应谱衰减关系的主要特点，并对其差异进行了比较分析。最后总结了我国现阶段衰减关系研究的不足，对其未来发展方向进行了展望。
Liang Xiao, Yanxiang Yu
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A Computationally Efficient Ground-Motion Selection Algorithm for Matching a Target Response Spectrum Mean and Variance [PDF]
, 2011 Dynamic structural analysis often requires the selection of input ground motions with a target mean response spectrum. The variance of the target response spectrum is usually ignored or accounted for in an ad hoc manner, which can bias the structural ...
Baker, Jack W. +2 more
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Dizhen xuebao, 2022 以强震动台站结构类型作为控制因素，基于集中质量显式时域动力有限元方法，系统地分析了不同场地条件下观测室结构（砌体观测房、半地下观测室、玻璃钢罩观测室）对地震动的影响。通过对北京地球观象台院内并址观测实验台站捕获的地脉动和两次地震事件数据的处理并结合数值模拟结果，分析得到不同类型观测室对地震动的影响规律。结果表明：观测室结构对地震动的影响是客观存在的，由于观测室结构自振周期和体量不同，不同观测室对地震动的影响频带和影响程度亦存在差异，相较于其它结构对地震动的影响，玻璃钢罩观测室的影响频带较窄、影响程度最小。
Peixuan Liu, Xiaojun Li, Zhenghua Zhou
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Effective linear damping and stiffness coefficients of nonlinear systems for design spectrum based analysis [PDF]
, 2010 A stochastic approach for obtaining reliable estimates of the peak response of nonlinear systems to excitations specified via a design seismic spectrum is proposed. This is achieved in an efficient manner without resorting to numerical integration of the
Agathoklis Giaralis +60 more
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Revista IBRACON de Estruturas e Materiais, 2019 The main objective of this work is to carry out a comparative analysis between the methods and provisions of the Brazilian code ABNT NBR 15421:2006 and those of the ASCE/SEI 7 and the Eurocode 8, on the seismic design of structures.
R. A. RODRIGUES +2 more
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Removal of Base-Line Wander and Power-Line Interference from the ECG by an Efficient FIR Filter with a Reduced Number of Taps [PDF]
, 1985 Linear phase filtering is proposed for the removal of baseline wander and power-line frequency components in electrocardiograms. In order to reduce the large number of computations involved in the digital filtering that are necessary, the desired filter ...
Alste, J.A. van, Schilder, T.S.
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