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DYNAMIC CHARACTERISTICS OF A BASE-ISOLATED BUILDING IN JAPAN FROM AMBIENT VIBRATION AND LOW-LEVEL GROUND SHAKING RESPONSE

机译：基于环境振动和低层地震动响应的日本基础隔震建筑的动力特性

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摘要

The main objective of the study described in this paper wasrnto investigate the seismic behaviour of a six-storeyrnreinforced-concrete base-isolated apartment building inrnTakamatsu, Japan. The building was subjected to a lowintensityrnearthquake in August 1999 and its response wasrncaptured by three tri-directional accelerometers. Followingrnthe earthquake, in September, a series of ambient vibrationrntests was conducted in order to determine the modalrncharacteristics of the building. Such characteristics includedrnthe natural frequencies and corresponding mode shapes,rnand damping ratios associated with each mode. A finiternelement model of the building was developed and calibratedrnto match the ambient vibration results in the first place andrnthen the low-level ground motion. Details about the ambientrntests are given and the approach for modelling the building isrndiscussed. Results from the low-intensity earthquake,rnambient vibration tests, calibrated finite element models arernalso presented and discussed.
机译：本文所述研究的主要目的是调查日本高松市一栋六层高的钢筋混凝土基础隔震公寓楼的抗震性能。该建筑物在1999年8月遭受了低强度地震，其响应由三个三向加速度计捕获。地震后，在9月，进行了一系列环境振动测试，以确定建筑物的模态特征。这些特性包括固有频率和相应的振型，与每个振型相关的阻尼比。开发了建筑物的有限元模型并进行了校准，以首先匹配环境振动结果，然后进行低水平地面运动。给出了有关环境测试的详细信息，并讨论了对建筑物进行建模的方法。还给出并讨论了低烈度地震的结果，环境振动试验，校准的有限元模型。

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  • 来源
    《》|2003年|p.1-8|共8页
  • 会议地点 Kissimmee FL(US)
  • 作者

    Jean-Fran?ois Lord; Carlos E. Ventura; W.D. Liam Finn; Noboru Fujita;

  • 作者单位

    Department of Civil Engineering The University of British Columbia 2324 Main Mall Vancouver, B.C., Canada, V6T 1Z4;

    Department of Civil Engineering The University of British Columbia 2324 Main Mall Vancouver, B.C., Canada, V6T 1Z4;

    rnAnabuki Chair of Foundation Geodynamics Kagawa University 2217-20 Hayashi-cho Takamatsu, Kagawa, 760-0396 Japan;

    Anabuki Chair of Foundation Geodynamics Kagawa University 2217-20 Hayashi-cho Takamatsu, Kagawa, 760-0396 Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 结构力学;结构力学;
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