Chapter 3.4 Retrofitting and Strengthening Evaluation from Stiffness Variations of a Damaged Building from Ambient Vibration Recordings

机译：第3.4章根据环境振动记录对受损建筑物的刚度变化进行加固和评估

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The rigidity of a six-story shear-wall building, damaged by the May 21, 2003 Boumerdes earthquake (Algeria) has been evaluated before the event, in its damaged state, and after retrofitting, by estimating its natural frequency, damping factor, and modal shape. Pre-event parameters are estimated through a numerical analysis, based on the structure drawings, complemented by an ambient vibration investigation of an identical non-damaged building located on the same site. Parameters of the damaged and retrofitted states were obtained from ambient vibration recordings. Variations of the modal parameters, for the three states of the building, allow evaluating rigidity changes, and thus checking of both the retrofitting and strengthening of the building.

机译：在事件发生前，受损状态和改造后，通过评估其六阶剪力墙的固有频率，阻尼系数和强度，对六层剪力墙建筑物的刚度进行了评估。模态形状。通过基于结构图的数值分析，通过对位于同一地点的同一未损坏建筑物的环境振动调查进行补充，来估计事件前的参数。损坏状态和改装状态的参数是从环境振动记录中获得的。对于建筑物的三种状态，模态参数的变化允许评估刚度变化，从而检查建筑物的翻新和加固。

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来源
《Increasing Seismic Safety by Combining Engineering Technologies and Seismological Data》|2007年|227-238|共12页
会议地点 Dubrovnik(HR)
作者
Mohammed N. Farsi; Bertrand Guillier; Jean-Luc Chatelain; Sid-Ahmed Zermout;
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作者单位

Centre National de Recherche Appliquee en Genie Parasismique (CGS), Algiers, Algeria;

Centre National de Recherche Appliquee en Genie Parasismique (CGS), Algiers, Algeria Laboratoire de Geophysique Interne et de Tectonophysique, IRD, CNRS. Universite Joseph Fourier, Grenoble, France;

Centre National de Recherche Appliquee en Genie Parasismique (CGS), Algiers, Algeria Laboratoire de Geophysique Interne et de Tectonophysique, IRD, CNRS. Universite Joseph Fourier, Grenoble, France;

Centre National de Recherche Appliquee en Genie Parasismique (CGS), Algiers, Algeria;

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原文格式 PDF
正文语种 eng
中图分类结构动力学;
关键词
building; earthquake; stiffness; modal characteristics; retrofitting; ambient vibrations;

机译：建造;地震;刚性;模态特征翻新；环境振动;

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4. Retrofitting and Strengthening Evaluation from Stiffness Variations of a Damaged Buildingfrom Ambient Vibration Recordings [C] . M.N. Farsi, B. Guillier, J.-L. Chatelain, NATO Advanced Research Workshop on Increasing Seismic Safety by Combining Engineering Technologies and Seismological Data . 2009

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7. Automatic modal variation tracking via a filter-free random decrement technique application to ambient vibration recordings on high-rise buildings [O] . Nasser-Barakat Fatima 2015

机译：通过无滤波器随机减量技术将模态变化自动跟踪到高层建筑的环境振动记录中

Chapter 3.4 Retrofitting and Strengthening Evaluation from Stiffness Variations of a Damaged Building from Ambient Vibration Recordings

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