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Fundamental Study of An Earthquake-resistant Reliability Design Method of Concrete Structures

Research Project

Project/Area Number 09650523
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionShinsyu University

Principal Investigator

CHOU Takashi  Shinsyu University, Faculty of Engrg, Professor, 工学部, 教授 (10020968)

Co-Investigator(Kenkyū-buntansha) KOYAMA Shigeru  Shinsyu University, Faculty of Engrg, Assistant, 工学部, 助手 (30271886)
OHKAMI Tosiyuki  Shinsyu University, Faculty of Engrg, Asso.Pro., 工学部, 助教授 (80152057)
KOYAMA Ken  Shinsyu University, Faculty of Engrg, Asso., 工学部, 助教授 (40021026)
IZUTANI Yasuo  Shinsyu University, Faculty of Engrg, Professor, 工学部, 教授 (60092863)
MITSUI Yasushi  Shinsyu University, Faculty of Engrg, Professor, 工学部, 教授 (20021008)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywordssafety / economy / reinforced concrete / earthquake-resistnt design / reliability / probability
Research Abstract

1) Statistical quantities have been presented based on the collection of the stochastic data concerning how arrangement of reinforcement is actually made in case of concrete structures.
2) The existing prediction formula of the acceleration response spectrum in the vicinity of the epicenter of an earthquake directly underneath takes excessively small a value, In the meantime, when expression is made by means of a linear regressive equation using an equivalent epicenter distance, it is made plain that accuracy is heightened.
3) Details concerning the shearing failure of reinforced concrete columns/piers are explained from diagonal tensile failure, but the failure is actually caused by shearing In consideration of such a situation, investigation was given to the propriety of the conventional shearing resistant force formula, and it is confirmed as a result that the formula is appropriate enough.
4) In connection with the problematic points possessed by 2-step performance design method viewe … More d from a standpoint of the reliability design method, that is to say, the uncertainty possessed by the 2-step design earthquake force and the uncertainty of the performance guarantee assessment equation, there is an apprehension, it is pointed out, that excessive evaluation will be made unless sufficient explanation is done to the ordinary people making as far as possible use of numerical values.
5) Proposal was made with a new earthquake-resistant performance evaluation method and a new earthquake-resistant performance evaluation plan based on the reliability design method. After that, proposal was furthermore made with a rational design method of the numerical values of the safety coefficients in the new road bridge specification.
6) Proposal was made in such a manner in purport that : An actual and effective design method in consideration of the imminence of an earthquake is regarded as unnecessary. That is to say, no design of the second step on the spot where no judgment is made with a possibility of occurrence of an earthquake is required. Contrarily to the above, construction is made by applying the design method of the second step in priority with the spot where there is a high possibility that severe earthquakes will occur. Thus reinforcement is made.
7) Estimated values of the numerical evaluation of economy and safety are shown. Thus proposal was made with necessity of formation of social agreement in relation to a settlement problem of a safety level. Less

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report

Research Products

(15 results)

All Other

All Publications (15 results)

  • [Publications] 長尚: "確率論敵立場からみたレベルII地震動と性能保証について" 確率・統計的意思決定に関するシンポジウム論文集,土木学会. 23-26 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 長尚: "二段階耐震設計法への対応策" 建設オピニオン. 6・2. 40-42 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 村口英之,泉谷恭男: "震源近傍における加速度応答スペクトルの距離減衰について" 第10回日本地震工学シンポジウム論文集. 139-144 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] X.Cao,& Y.Mitsui: "Application of Artificial Neural Networks to Load Identification" Computers & Structures. 69・1. 63-78 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 小山健,花田潤治: "コンクリート構造物の耐久設計指針(案)に基づいた耐久性確保の度合いについて" 土木学会論文集. 585/V. 199-203 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Chou: "Level II Earthquake and Performance Guarantee Based on Probability Theories" Proceedings of Symposium on Probabilistic and Stochastic Decision Making. 23-26 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Chou: "On 2-step Earthquake-resistsnt Design Method" Kensetu Opinion. Vol.6, No.2. 40-42 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hideyuki Muraguchi & Yasuo Izutani: "Attenuation of Acceleration Spectra in Near-Field" Proceedings of 10th Symposium of Japan Society of Earthquake Engineering. 139-144 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] X.Cao & Y.Mitsui: "Application of Artificial Neural Networks to Load Identification" Computers & Structures. Vol.69, No.1. 63-78 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ken Koyama: "On the Degree of Assurance for Duarable Concrete Structures Based on The Proposed Specification of Duarability Design for Concrete Structures by JSCE Reseqrch Working Group" JSCE Journal of Structural Mechanics and Earthquake Engineering. No.585. 199-203 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 長尚: "確率論敵立場からみたレベルII地震動と性能保証について" 確率・統計的意思決定に関するシンポジウム論文集,土木学会. 23-26 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 長尚: "二段階耐震設計法への対応策" 建設オピニオン,.6・2. 40-42 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 村口英之・泉谷恭男: "震源近傍における加速度応答スペクトルの距離減衰について" 第10回日本地震工学シンポジウム論文集. 139-144 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] X.Cao, Y.Sugiyam & Mitsui: "Application of Neural Network to Load Identification" Computers & Structures. (to be published).

    • Related Report
      1997 Annual Research Report
  • [Publications] 小山健, 花田潤治: "コンクリート構造物の耐久設計指針(案)に基づいた耐久性確保の度合いについて" 土木学会論文集. No.585 V-38. 199-203 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-03-31   Modified: 2016-04-21  

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