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Effects of Varying Axial Force due to Near-field Vertical Ground Motions on the Seismic Performance of RC Bridge Columns

Research Project

Project/Area Number 22760338
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionTokyo Institute of Technology

Principal Investigator

MATSUZAKI Hiroshi  東京工業大学, 大学院・理工学研究科, 助教 (10506504)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords上下方向地震動 / 軸力変動 / RC橋脚 / 耐震 / 正負交番繰返載荷実験 / 断層近傍 / 短周期 / 引張力
Research Abstract

Effects of varying axial force due to extreme near-field vertical ground motions on the seismic performance of RC bridge columns were investigated based on reversed cyclic loading experiments and fiber element analysis. It was shown from the experiments that the damage of core concrete progressed extensively due to the reversed cyclic axial force variation from compression to tension after the longitudinal bars buckled, which resulted in the shear deformation in the plastic hinge region. Damaged area of core concrete became larger as the peak tensile force in the axial force variation increased.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (7 results)

All 2012 2011 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results)

  • [Journal Article] 断層近傍上下方向地震動による変動軸力下のRC橋脚の耐震性に関する実験的研究2012

    • Author(s)
      松崎裕
    • Journal Title

      土木学会論文集A1(構造・地震工学)

      Volume: Vol.68, No.4(印刷中)

    • NAID

      130004556839

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 断層近傍上下方向地震動による変動軸力下のRC橋脚の耐震性に関する実験的研究

    • Author(s)
      松崎裕, 熊谷祐二, 川島一彦
    • Journal Title

      土木学会論文集A1(構造・地震工学)

      Volume: (印刷中)

    • NAID

      130004556839

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Presentation] 断層近傍上下方向地震動による変動軸力下のRC橋脚の耐震性に関する実験的研究2011

    • Author(s)
      松崎裕,熊谷祐二,川島一彦
    • Organizer
      第31回土木学会地震工学研究発表会
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2011-11-18
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 断層近傍上下方向地震動による軸力変動がRC橋脚の耐震性に及ぼす影響2011

    • Author(s)
      松崎裕,熊谷祐二,川島一彦
    • Organizer
      日本地震工学会大会-2011
    • Place of Presentation
      国立オリンピック記念青少年総合センター
    • Year and Date
      2011-11-10
    • Related Report
      2011 Final Research Report
  • [Presentation] 断層近傍上下方向地震動による軸力変動がRC橋脚の耐震性に及ぼす影響2011

    • Author(s)
      松崎裕
    • Organizer
      日本地震工学会・大会-2011
    • Place of Presentation
      国立オリンピック記念青少年総合センター
    • Year and Date
      2011-11-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] 短周期成分が卓越した上下方向地震動による軸力変動がRC橋脚の履歴復元力特性に及ぼす影響に関する実験的研究2011

    • Author(s)
      松崎裕,熊谷祐二,川島一彦
    • Organizer
      第14回性能に基づく橋梁等の耐震設計に関するシンポジウム
    • Place of Presentation
      土木学会
    • Year and Date
      2011-07-29
    • Related Report
      2011 Final Research Report
  • [Presentation] 短周期成分が卓越した上下方向地震動による軸力変動がRC橋脚の履歴復元力特性に及ぼす影響に関する実験的研究2011

    • Author(s)
      松崎裕
    • Organizer
      第14回性能に基づく橋梁等の耐震設計に関するシンポジウム
    • Place of Presentation
      土木学会講堂
    • Year and Date
      2011-07-29
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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