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Studies on the Damage Prediction for Reinforced Concrete Structures

Research Project

Project/Area Number 01550379
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field コンクリート工学・土木材料・施工
Research InstitutionChubu University

Principal Investigator

HIRASAWA Ikuo  Chubu University, Engineering, Professor, 工学部, 教授 (50065281)

Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1990: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1989: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsVibrating Property / Damage Process / Tall Pier / High Strength Concrete, / Frequency / Damage Function / Pseudo-Dynamic Test, / Shaking Table Test / 擬似動的試験法 / 振動台試験法 / 高橋脚 / 振動解析 / 微振動数 / ランダム波形入力
Research Abstract

The project has two main objectives : (1) to clarify the vibrating properties of the damaged specimens and (2) to correlate the frequency with the degree of the damage in reinforced concrete tall pier models. The vibrating tests of twelve models are carried out. The variables are the cycle of the repeated loading and the materials of the specimen, that is, normal strength concrete, high strength concrete. And steel fiber reinforced concrete, The results indicate that the relationship between frequencies and the degree of the damage is exhibited by an exponential function. A damage function and so me damage factors are found and defined. Thus, a method for the prediction of the degree of the damage is proposed.
The next paper presents the results of tests made to study the effects of random loading on vibration properties of R/C tall pier models. Two kinds of dynamic tests were carried out. One is the pseudo-dynamic test, another is the shaking table test. Three random waves of acceleration recorded by actual earthquakes in Japan-Miyagi, Hyuuga and Nihonkai-, were induced to the specimen of R/C tall pier models. From the test results, the changes of vibration properties were examined and compared with two kinds of test methods. It is obtained that although the response by shaking table test is three times larger than by pseudo-dynamic test, the degree of damage in frequency is almost the same. It is found that the damage in frequency depends on the rate of loading.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Hirasawa,I.;Furusawa,S.;and Ito,K.: "Experimental Studies on Damaged Process and Vibrating Property of R/C Tall Pier Models" “Structural Dynamic Symposium",Kuala Lumpur,Malaysia. 12 1-12 9 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 平澤 征夫,伊藤 光明,古澤 誠司: "横拘束鉄筋を在する鉄筋コンクリ-ト正方形断面柱の終局耐力と靭性に関する実験的研究" 土木学会論文集. 408. 21-30 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hirasawa,I.;Furusawa,S.;Ito,K.: "Experimental Studies on Damaged Process and Vibrating Properties of R/C Tall Pier Models" 中部大学工学部紀要. 25. 85-92 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 平澤 征夫,古澤 誠司,愛知 五男,伊藤 和幸: "RC高橘脚モデルの損傷に与えるランダム波形入力方法の影響" コンクリ-ト工学年次論文報告集. 12. 473-478 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 平澤 征夫,古橋 誠司,: "各種ランダム波形入力によるRC高橋脚モデルの損傷" 中部大学工学部紀要. 26. 121-132 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] HIRASAWA, I., ITO, K., AND FURUSAWA, S.: "Experimental Studies on Ultimate Strength and Ductirity of Reinforced Square Columns With Confining Reinforcement" Proceedings of Japan Society of Civil Engineers. No. 408. 21-30 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] HIRASAWA, I., FURUSAWA, S., AND ITO, K.: "Experimental Studies on Damaged Process and Vibrating Properties of R/C Tall Pier Models" Memoirs of College of Engineering, Chubu University. Vol. 25. 85-92 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] HIRASAWA, I., FURUSAWA, S., AICHI, I., AND ITO, K.: "The Effects of Random Wave on the Damage of R/C Tall Pier Model" Proceedings of the Japan Concrete Institute. Vol. 12. 473-478 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] HIRASAWA, I. AND FURUSAWA, S.: "Damage of R/C Tall Pier Models by Random Waves" Memoirs of College of Engineering, Chubu university. Vol. 26. 121-132 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 平澤 征夫,古澤 誠司,愛知 五男,伊藤 和幸: "RC高橋脚モデルの損傷に与えるランダム波形入力方法の影響" コンクリ-ト工学年次論文報告集. 12. 473-478 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 平澤 征夫,古澤 誠司: "各種ランダム波形入力によるRC高橋脚モデルの損傷" 中部大学工学部紀要. 26. 121-132 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 古澤 誠司,平澤 征夫,伊藤 和幸: "RC曲げ部材の塑性ヒンジ長に関する実験的研究" 土木学会第45回年次学術講演会講演概要集. 5. 574-575 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 平澤 征夫,古澤 誠司,伊藤 和幸: "RC高橋脚モデルの損傷に及ぼす地震波形入力法の影響" 土木学会第45回年次学術講演会講演概要集. 5. 676-677 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 平澤 征夫: "地震波形入力による損傷度の一評価法" 土木学会中部支部研究発表会講演概要集. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 平澤征夫,伊藤光明,古澤誠司: "横拘束鉄筋を有する鉄筋コンクリ-ト正方形断面柱の終局耐力と靭性" 土木学会論文集. 第408. 21-30 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] I.Hirasawa: "Experinental Studies on Damaged Process and Vibrating Properties of R/C Tall Pier Models" 中部大学工学部紀要. 25. 85-92 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 古澤誠司: "振動特性によるRC高橋脚モデルの損傷度推定に関する-実験" 土木学会年次学術講演会講演概要集第5部. 44. 472-473 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 平澤征夫: "横拘束鉄筋を有するRC柱α二軸曲げ偏心耐力" 土木学会年次学術講演会講演概要集第5部. 44. 474-475 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 平澤征夫: "各種ランダム波形入力によるRC高橋脚モデルの損傷度" コンクリ-ト工学年次講演論文集. 12. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 藤井学: "PC斜張橋タワ-の保有靱性率の試算" 日本コンクリ-ト工学協会「コンクリ-ト構造物の靱性と配筋方法」に関するシンポジウム. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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