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Study on Seismic Design of Bridges Systems

Research Project

Project/Area Number 11695057
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionHachinohe Institute of Technology

Principal Investigator

HASEGAWA Akira  Hachinohe Institute of Technology Faculty of Engineering Professor, 工学部, 教授 (20105547)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Sankichi  Hachinohe Institute of Technology Faculty of Engineering Professor, 工学部, 教授 (90226837)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2001: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2000: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1999: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsCFT / RCFT / Seismic Design / Bridges / Composite Structure / Photo Elastic / 鉄筋コンクリート / 鋼管
Research Abstract

In the Hyogo Nanbu earthquake 1995, A lot of Bridges were damaged greatly. To prevent the damage of bridges, a new structure which has excellent performances on the strength and the displacements should be developed.
It is well known that Concrete Filled steel Tube (CFT) has excellent mechanical performances. If the uniting of the steel tube and concrete will be promoted, the performance increases leaping. In this study, Reinforced Concrete Filled operation Between the steel Tube (RCFT) that Reinforced Concrete (RC) is filled in the steel tube, was treated. By experiments, the composite operation between the steel tube and RC, and mechanical performances by the rib were researched. Besides, it IB researched how the ratio of radius of cylinder to wall thickness, strength of filled concrete influence to the performance of RCFT.
In this study, compression tests and bending tests, related to CFT and RCFT, were carried out to investigate their mechanical properties. The findings obtained from the series of tests are as follows.
in Compression test
(1) Strength and ductility of CFT-RCFT specimens were more excellent than RC specimens.
(2) High strength concrete is excellent in the maximum strength. But, it is inferior to the ductility.
(3) The rib improves the strength and confined effect. And the ductility is excellent, too.
(4) The local buckling stiffened effect was excellent in the case of thin steel tubes.
in bending test
(1) In the strength and ductility factor, high strength CFT-RCFT were equal approxmately to low strength CFT・RCFT.
(2) The local buckling stiffened effect was excellent in the case of thin steel tubes.
(3)The rib improves the strength and confined effect of RCFT. And the ductility is excellent, too.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] T.Endo, Y.Shoi, A.Hasegawa他: "Experimental Study Reinforced Concrete Filled Steel Thbular Structures"Proc. of 25^<th> Conference on our world in Concrete & structures. 23-24 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Hasegawa, Y.Shioi, H.J.Wang: "Experimental Study on Mechanical Characteristics of Reinforced Concrete Filled Steel Tubular Structures"Proc. of 1^<st> internatinal conference on Steel & composite structures. 855-862 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.J.wang, A.Hasegawa, Y.Shioi: "Study on Strength Evaluation Formula for Reinforced Concrete Filled Steel Tubular Structures"Proc. of 1^<st> internatinal conference on Steel & composite structures. 881-888 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 王海軍, 長谷川明, 塩井幸武: "圧縮力を受ける鉄筋コンクリート充填鋼管の複合効果と合成効果"土木学会第54回年次学術講演会講演概要. A139(CD-ROM). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 遠藤考則, 塩井幸武, 長谷川明: "鉄筋コンクリート充填鋼管の曲げ特性に関する実験"土木学会第55回年次学術講演会講演概要. I-A271(CD-ROM). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 石橋博則, 長谷川明, 塩井幸武: "鉄筋コンクリート充填鋼管の圧縮特性に関する実験"土木学会第55回年次学術講演会講演概要. I-A295(CD-ROM). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Endo, Y. Shoi, A. Hasegawa: "Experimental Study Reinforced Concrete Filled Steel Tubular Structures"Proc. of 25^<th> Conference on our world in Concrete & structures. 23-24 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A. Hasegawa, Y. Shioi, H. J. Wang: "Experimental Study on Mechanical Characteristics of Reinforced Concrete Filled Steel Tubular Structures"Proc. of 1^<st> international conference on Steel & composite structures. 855-862 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. J. wang, A. Hasegawa, Y. Shioi: "Study on Strength Evaluation Formula for Reinforced Concrete Filled Steel Tabular Structures"Proc. of 1^<st> international conference on Steel & composite structures. 881-888 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Hasegawa, Y.Shioi, H.J.Wang: "Experimental Study on Mechanical Characteristics of Reinforced Concrete Filled Steel Thbular Structures"Proc. of 1^<st> internatinal conference on Steel & composite structures. 855-862 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.J.wang, A.Hasegawa, Y.Shioi: "Study on Strength Evaluation Formula for Reinforced Concrete Filled Steel Tubular Structures"Proc. of 1^<st> mternatinal conference on Steel & composite structure. 881-888 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Shioi,A.Hasegawa,Y.Hashizume,M.Kosaka: "Arrangement of reinforcements to raise shear resistance and maintain The ductirity of reinforced concrete piers on bridges"Proc.of 12^<th> world conference on earthquake engineering. 1-8 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Endo,Y.shioi,A.Hasegawa,H.J.Wang: "Experimental study on reinforced concrete filled steel tubular structures"Proc.of the 25^<th> conference on our world in concrete & structures. 279-286 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 王海軍、塩井幸武、長谷川明: "鉄筋コンクリート充填鋼管構造の力学的特性に関する実験的研究-その1"八戸工業大学構造工学研究所紀要. 第7巻. 1-13 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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