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Study on Damage and Strengthening Effects of Building Structures based on Vibration Tests using Impactor Machine

Research Project

Project/Area Number 13650614
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

M0T0SAKA Masato  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90281708)

Co-Investigator(Kenkyū-buntansha) HOSHI Michio  Tohoku University, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (90005504)
SATO Takeshi  Tohoku University, Graduate School of Engineering, Assistant Professor, 大学院・工学研究科, 講師 (90290692)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2002: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2001: ¥3,000,000 (Direct Cost: ¥3,000,000)
Keywordsexisting building / vibration test / system identification / damage detection / soil-structure interaction system / substructure method / impactor machine / 法衝撃波発生装置 / 耐震補強効果
Research Abstract

In earthquake engineering, it is important to investigate the change of dynamic property of building structure resulting from damage during earthquake and strengthening by seismic reinforcement work. The change of natural period and vibration modes of soil-structure interaction system based on vibration tests make it possible to identify the damage and strengthening effects of each structural parts. In this project, first, damage and strengthening effects were investigated based on the forced vibration tests at an existing building before and after reinforcement work. Second, the shaking table testing technique of soil-structure interaction system based on the substructure method was developed and system identification of the model structure was performed.
Up to the fiscal year 2001, the vibration tests using impactor machine and unbalanced-mass type excitor are performed at the actual 9 story RC building of Tohoku University. The vibration tests were performed before the reinforcement … More work and after the work. Based on the before-test, the damage detection technique was first discussed by comparing the vibration characteristics using the structural model which explain well those after the building's completion. The stiffness reduction factors were detected for each portion of the structural elements. Then, the seismic strengthening effect was discussed using the test results after the reinforcement. The same technique as the damage detection for the before-test was used to identify the stiffness increase for each portion of the structural elements
In fiscal year 2002, the shaking table testing technique based on the substructure method was developed using a controlable electro-magnetic type shaking table. The testing method makes it possible to perform the vibration test of structure on assumed arbitrary soil conditions. First, the numerical simulation of the test was performed and verified the validity of the testing technique through the system identification of the used soil spring using the acceleration observation record. Then, the model tests of the different soil-structure system are performed using the testing device and the efficiency of the testing technique was confirmed through the system identification of the interaction system. The damage/reinforcement effects of the testing model can be evaluated based on the developed testing method. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Motosaka, M., T.Tateno, H.Suzuki: "Damage Detection of an Existing Building Based on a Forced Vibration Test and Consideration of Active Control as a Seismic Retrofit"Proc.of 3rd World Conference on Structural Control. Volume 3. 697-702 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Lee, S., M.Motosaka, T.Sato: "Numerical simulation on the shaking table test considering the dynamic soil-structure Interaction and estimation of s dynamic soil stiffness"Proc.of 3rd World Conference on Structural Control. Volume 2. 243-248 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Lee, S., M.Motosaka, T.Sato: "Simulation of actual shaking table test of soil-structure interaction system based on non-linear substructure method"Journal of Structural and Construction Engineering. 554. 63-70 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 鈴木博之, 源栄正人, 佐藤健: "起振機振動実験に基づく既存建物の耐震改修前後の振動特性の比較検討"日本建築学会東北支部研究報告集構造系. 65. 151-154 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 源栄正人, 鈴木博之, 佐藤健: "既存建物の耐震改修前後の起振機振動実験に基づく損傷度と補強効果の検討"第11回日本地震工学シンポジウム論文集. CD. 2015-2020 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Motosaka, M., H.Suzuki, T.Sato, I.Yamaguchi: "Evaluation of seismic damage and reinforcement effects of an existing building based on forced vibration tests before and after repair work"Proc.of 5^<th> Eurorean Conference on Structural Dynamics. Vol.2. 967-972 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Motosaka, M., T. Tateno, and H. Suzuki: "Damage Detection of an Existing Building Based on a Forced Vibration Test and Consideration of Active Control as a Seismic Retrofit"Proc. of 3rd World Conference on Structural Control. 3. 697-702 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Lee, S., M. Motosaka, and T. Sato: "Numerical simulation on the shaking table test considering the dynamic soil-structure Interaction and estimation of s dynamic soil stiffness"Proc. of 3rd World Conference on Structural Control. 2. 243-248 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Lee, S., M. Motosaka, and T. Sato: "Simulation of actual shaking table test of soil-structure interaction system based on non-linear snbstructure method"Journal of Structural and Construction Engineering. 554. 63-70 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] SUZUKI Hiroyuki, MOTOSAKA Masato, and SATO Takeshi: "Comparative Investigation of Dynamic Characteristics Based on the Forced Vibration Tests Before and After the Reinforcement Work at the Existing Building"PROCEEDINGS OF AIJ TOHOKU CHAPTER ARCHITECTURAL RESEARCH MEETING. 65. 151-154 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Masato Motosaka, Hiroyuki Suzuki, and Takeshi Sato: "Evaluation of Seismic Damage and Reinforcement Effects of an Existing Building Based on Forced Vibration Tests Before and Afler the Reinforcement Work"The Eleventh Japan Earthquake Engineering Symposium, CD. 2015-2020 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Masato Motosaka, Hiroyuki Suzuki, Takeshi Sato, and Ikuo Yamaguchi: "Evaluation of seismic damage and reinforcement effects of an existing building based on forced vibration tests before and after repair work"Proc. 5th European Conference on Structural Dynamics. 2. 967-972 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Motosaka, M., T.Tateno, H.Suzuki: "Damage Detection of an Existing Building Based on a Forced Vibration Test and Consideration of Active Control as a Seismic Retrofit"Proc. of 3rd World Conference on Structural Control. Volume 3. 697-702 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Lee, S., M.Motosaka, T.Sato: "Numerical simulation on the shaking table test considering the dynamic soil-structure Interaction and estimation of s dynamic soil stiffness"Proc. of 3rd World Conference on Structural Control. Volume 2. 243-278 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Lee, S., M.Motosaka, T.Sato: "Simulation of actual shaking table test of soil-structure interaction system based on non-linear substructure method"Journal of Structural and Construction Engineering. 554. 63-70 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鈴木博之, 源栄正人, 佐藤健: "起振機振動実験に基づく既存建物の耐震改修前後の振動特性の比較検討"日本建築学会東北支部研究報告集構造系. 65. 151-154 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 源栄正人, 鈴木博之, 佐藤健: "既存建物の耐震改修前後の起振機振動実験に基づく損傷度と補強効果の検討"第11回日本地震工学シンポジウム論文集. CD. 2015-2020 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Motosaka, M., H.Suzuki, T.Sato, I.Yamaguchi: "Evaluation of seismic damage and reinforcement effects of an existing building based on forced vibration tests before and after repair work"Proc. of 5^<th> Eurorean Conference on Structural Dynamics. Vol.2. 967-972 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ali Niousha, Masato Motosaka: "Ground motion and structural vibration reduction using periodic wave barrio as passive isolation"3^<rd> International Conference on Earthquake Resistant and Engineering Structures. 191-200 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鈴木博之、舘野公一、源栄正人、佐藤健: "実存建物の振動実験に基づく損傷検出制御に関する研究(その1)実存建物の振動実験に基づく損傷検出"日本建築学会大会梗概集. B-2. 849-850 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 舘野公一、鈴木博之、源栄正人、佐藤健: "実存建物の振動実験に基づく損傷検出制御に関する研究(その2)システム同定結果を用いた実存建物の制震補強シミュレーション"日本建築学会大会梗概集. B-2. 851-852 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 源栄正人、鈴木博之、佐藤健: "既存建物の耐震改修前後の振動特性に関する研究 その1:改修前後の起振機振動実験の比較・検討"第1回日本地震工学研究発表・討論会梗概集. 6-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鈴木博之、源栄正人、佐藤健: "既存建物の耐震改修前後の振動特性に関する研究 その2:微動観測と起振機振動実験の比較・検討"第1回日本地震工学研究発表・討論会梗概集. 7-7 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 源栄正人、鈴木博之、佐藤健: "起振機振動試験に基づく東北大学建設系建物の耐震改修前後の振動特性の比較検討"東北地区災害化学研究. 第38号. (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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