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Study on Seismic Strengthening of Steel Structure Framework withRemovable Knee Brace Reinforcement

Research Project

Project/Area Number 22560575
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionKanto Gakuin University

Principal Investigator

EBATO Kazumasa  関東学院大学, 工学部, 助教 (70568766)

Co-Investigator(Kenkyū-buntansha) HARADA Yukihiro  千葉大学, 工学研究科, 教授 (10272791)
Co-Investigator(Renkei-kenkyūsha) MORITA Koji  東京電機大学, 特任教授 (20057227)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords鋼構造 / 柱・梁接合部 / 半剛接合部 / 方杖補強 / 耐震設計 / 半剛接合 / 有限要素解析 / 耐震補強
Research Abstract

An experiment was performed on a subassemblage specimen of an interior column joint with knee brace reinforcement, and the experimental results verified the increase in strength and stiffness of the beam-to-column joint due to the knee brace reinforcement. While knee braces are effective for stiffening and strengthening the overall frameworks, the existing beams or columns are assumed to still plastify during strong earthquakes because of the high strength of the knee braces. A better retrofit is possible if the seismic performance could be upgraded without assuming the yielding of beams or columns. A new type of knee brace member with a built-in comb-shaped damper is proposed and discussed in this study.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (8 results)

All 2013 2012 2011

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results)

  • [Journal Article] Study on structural behavior of weldless joint in beam-to-column connection of interior column with knee brace reinforcement2012

    • Author(s)
      S.Honma, K.Ebato, Y.Harada
    • Journal Title

      STESSA2012, Behaviour of Steel Structures in Seismic Areas

      Pages: 263-268

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] せん断入力型方杖補強部材の実験的研究2013

    • Author(s)
      本間小百合、原田幸博、上村隆介、江波戸和正
    • Organizer
      日本建築学会大会
    • Place of Presentation
      北海道
    • Year and Date
      2013-09-01
    • Related Report
      2012 Final Research Report
  • [Presentation] せん断入力型方杖補強部材の実験的研究 (繰返し載荷実験)2013

    • Author(s)
      本間小百合
    • Organizer
      2013年度日本建築学会大会
    • Place of Presentation
      北海道(北海道大学)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Experimental Study on Seismic Retrofit by Using Supplemental Knee Braces Attached to Steel Members with Semi-Rigid Bolted Connections2012

    • Author(s)
      Y.Harada, K.Ebato&S.Honma, T.Takimoto
    • Organizer
      The15th WORLD CONFERRENCE ON EARTHQUAKE ENGINEERING
    • Place of Presentation
      Lisbon, Portugal
    • Year and Date
      2012-09-26
    • Related Report
      2012 Final Research Report
  • [Presentation] Study onstructural behavior of weldless joint in beam-to-column connection of interior column with knee brace reinforcement2012

    • Author(s)
      S.Honma、K.Ebato、Y.Harada
    • Organizer
      STESSA2012
    • Place of Presentation
      Santiago, Chile
    • Year and Date
      2012-01-09
    • Related Report
      2012 Final Research Report
  • [Presentation] 十字形方杖補強付部分骨組み架構の実験的研究2011

    • Author(s)
      田所賢裕、岡崎慎吾、本間小百合、江波戸和正
    • Organizer
      関東学院大学工学部研究発表講演会
    • Place of Presentation
      横浜
    • Year and Date
      2011-11-25
    • Related Report
      2012 Final Research Report
  • [Presentation] 方杖補強付十字形部分骨組み架構の解析2011

    • Author(s)
      本間小百合、江波戸和正、原田幸博
    • Organizer
      日本建築学会大会
    • Place of Presentation
      東京
    • Year and Date
      2011-08-24
    • Related Report
      2012 Final Research Report
  • [Presentation] 方杖補強付十字形部分骨組み架構の解析2011

    • Author(s)
      本間小百合
    • Organizer
      日本建築学会(大会学術講演梗概集(関東)C-1構造III)
    • Place of Presentation
      早稲田大学(東京都)
    • Year and Date
      2011-08-24
    • Related Report
      2011 Annual Research Report

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Published: 2010-11-30   Modified: 2019-07-29  

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