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2001 Fiscal Year Final Research Report Summary

A STUDY ON DYNAMIC CHARACTERISTICS OF TRADITIONAL WOODEN BUILDING

Research Project

Project/Area Number 10650584
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionNara National Research Institute for Cultural Properties

Principal Investigator

UCHIDA Akito  NARA NATIONAL CULTURAL PROPERTIES RESEARCH INSTITUTE, CENTRE FOR ARCHAEOLOGICAL OPERATIONS, HEAD OF CONSERVATION TECHNIQUE SECTION, 埋蔵文化財センター・研究指導部, 室長 (90142017)

Co-Investigator(Kenkyū-buntansha) KAWAI Naohito  BUILDING RESEARCH INSTITUTE, MINISTRY OF CONSTRUCTION CODES AND EVALUATION RESEARCH CENTER, HEAD OF EVALUATION SYSTEM DIVISION, 基準認証研究センター, 室長
Project Period (FY) 1998 – 1999
KeywordsMICRO TREMOR MEASUREMENT / NATURAL FREQUENCY / DIAGNOSIS METHOD FOR SESMIC PERFORMANCE / VIBRATION MODE / DAMPING FACTOR
Research Abstract

As the traditional timber buildinds are generally valuable cultural properties, we usually have to employ the non destructive examination philosophy to understand their dynamic characteristics. Micro tremor measurement is a method of measuring the continuous micro vibration of the buildings whose amplitude is from 1/1000 mm to 1/100 mm with high sensitive sensors. This method is satisfactorily applicable as it is not to damage or swing the buildings and it is easy to place the sensors on the beam or floor during the measurement.
To clarify the dynamic characteristics of Japanese traditional timber buildings, micro tremor measurement were performed on nine buildings. By FFT analysis on the record of micro tremor, we obtained natural frequencies , damping factors and vibration modes of each building. Next, the lateral load- displacement relationships of five buildings among them were estimated, considering column rocking resistance and the effect of clay walls. And the values of natural frequency for parallel mode vibration were obtained using calculated values of initial stiffness and the estimated values of mass. Finally , the calculated values of natural frequency were compared with those observed in micro tremor measurements. The comparison showed an adequate correlation between the calculated values and the observed values of natural frequency, though the absolute values by calculation were lower than those observed. Therefore, micro tremor measurement seems to be applicable as one method in non-destructive diagnosis for seismic performance of.Japanese traditional timber buildings.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 内田昭人: "伝統的木造建築物の振動特性 その7。清水寺仁王門と南禅寺三門の常時微動測定"日本建築学会大会学術講演梗概集. C-1. 259-260 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Akito UCHIDA: "DYNAMIC CHARACTERISTICS IN JAPANESE TRADITIONAL TIMBER BUILDINGS"5^<th> WORLD CONFERENCE ON TIMBER ENGINEERING. Vol.2. 34-41 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 内田昭人: "伝統的木造建築物の振動特性 その8。荷重変形関係と固有振動数の推定"日本建築学会大会学術講演梗概集. C-1. 157-158 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Akito UCHIDA: "NON DESTRUCTIVE DIAGNOSIS FOR JAPANESE TRADITIONAL TIMBER BUILDINGS"1^<st> RILEM Symposium on TIMBER ENGINEERING. Vol.1. 295-304 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 内田昭人: "木塔の謎を解明"月刊 古代研究. 2月号. 47-59 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 内田昭人: "五重塔の構造と揺れ"文化財を探る科学の眼(古代住居・寺社・城郭を探る). 6巻. 19-23 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] KAWAI Naohito, UCHIDA Akito and MAEKAWA Hideyuki: "Dynamic Characteristics of Traditional Wooden Building Part 7 : Micro Tremor Measurement on Kiyomizudera Nio-mon and Nanzenji San-mon"Report of the Annual Meeting of the Architectural Institute of Japan. C-1. 259-260 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] UCHIDA Akito, KAWAI Nohito and MAEKAWA Hideyuki: "Dynamic Characteristics in Japanese Traditional Timber Buildings"5^<th> World Conference o Timber Engineering. Vol.2. 34-41 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] MAEKAWA Hideyuki, UCHIDA Akito and KAWAI Naohito: "Dynamic Characteristics of Traditional Wooden Building Part 8 : Estimation of Load-displacement Relationships and Natural Frequencies"Report of the Annual Meeting of the Architectural Institute of Japan. C-1. 157-158 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] UCHIDA Akito, KAWAI Naohito adn MAEKAWA Hideyuki: "Non-destructive Diagnosis for Japanese Traditional Timber Buildings"1^<st> RILEM Symposium on TIMBER ENGINEERING. Vol.1. 295-304 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] UCHIDA Akito: "Solve a Mystery of Wooden Pagoda"A Study on Ancient Times, Monthly February. 19-23 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] UCHIDA Akito: "Vibrfation Mode of Five-storied Wooden Pagoda"Cultural Properties from the Scientific Research view. Vol.6. 19-23 (1999)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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