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Seismic Behavior of RC Structures considering the Interaction between Soil and Foundation

Research Project

Project/Area Number 10650447
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 土木材料・力学一般
Research InstitutionSaitama University

Principal Investigator

MUTSUYOSHI Hiroshi  Saitama University, Faculty of Engineering, Professor, 工学部, 教授 (60134334)

Co-Investigator(Kenkyū-buntansha) MAKI Takeshi  Saitama University, Faculty of Engineering, Research Associate, 工学部, 助手 (60292645)
IWASHITA Kazuyoshi  Saitama University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (40203377)
タンゾ ウィリアム  埼玉大学, 工学部, 助教授 (00241919)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1999: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1998: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywordsseismic behavior / ground / foundation / pile / 基礎-地盤-杭 / 相互作用 / 地震応答
Research Abstract

The objective of this research are, 1) to develop the response analysis method of the RC structural system considering the interaction between the foundation and the surrounding ground, 2) to verify the method by the result of the model loading test of RC pile in soil, and 3) to consider the seismic behavior of RC structure affected by the response of the piles and soil. Finally, the fruits from these considerations will be made good use for improving the seismic design method of RC structures.
In this year, the static and dynamic loading tests of RC model piles in soil are performed. The specimens are fixed on the bottom of the steel soil box, to model the condition at the base in real case. The soil box with pile specimen is filled by the dry sand of which the material properties are clear. The reversed cyclic load or the dynamic sine wave load is acted at the pile top, modeling the seismic load transmitted from footing to pile. In addition, the response analyses of RC structural system, consists of surrounding ground, piles, footing, pier and superstructure, are performed using 3-dimensional elasto-plastic finite element method. From these results, the following points are clarified ; (1) The plastic area of RC pile, i.e. plastic hinge, spreads to lower due to reversed cyclic loading. Additionally, the behavior of the pile is affected by the stiffness of surrounding ground, but not by the shape of the cross section of the pile. (2) The settlement of the ground is observed at the surface around the pile top due to the reversed cyclic loading. This phenomenon causes the compaction of the ground around the pile and the damage of the pile proceeds with the increment of stiffness of surrounding ground. (3) The analytical method used in this research can evaluate the behavior of RC pile in ground to some extent.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 牧剛史、睦好宏史、高野光司: "地盤中におけるRC杭の復元力特性と変形性状に関する研究"土木学会第25回地震工学研究発表会講演論文集. 565-568 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 牧剛史、睦好宏史: "地盤中におけるRC杭の復元力特性に関する載荷実験及び解析"JCI「コンクリート構造系の安全性評価」に関するシンポジウム論文集. 445-452 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 牧剛史、睦好宏史、高野光司: "RC杭-地盤系の非線形復元力特性に関する研究"土木学会第54回年次学術講演講演会概要集. V. 578-579 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI and Hiroshi MUTSUYOSHI: "Response Behavior of RC Piles under Severe Earthquake"The 12th World Conference on Earthquake Engineering. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 牧剛史、睦好宏史、佐々木満範: "地盤中における鉄筋コンクリート杭の水平復元力特性に関する研究"コンクリート工学年次論文報告集. Vol.22. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI, Hiroshi MUTSUYOSHI and Koji TAKANO: "Response Behavior and Deformation of RC Piles in Ground"Proceedings of the 25ィイD1thィエD1 JSCE Earthquake Engineering Symposium. (in Japanese). 565-568 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI and Hiroshi MUTSUYOSHI: "Loading Test and Analysis of RC Pile-Soil System"Proceedings of JCI Symposium on the Safety Evaluation of Concrete Structural Systems. (in Japanese). 445-452 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI, Hiroshi MUTSUYOSHI and Koji TAKANO: "Response Behavior of RC Piles in Nonlinear Soil"Proceedings of the 54ィイD1thィエD1 Annual Conference of JSCE V. (in Japanese). 578-579 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI and Hiroshi MUTSUYOSHI: "Response Behavior of RC Piles under Severe Earthquake"The 12th World Conference on Earthquake Engineering, Auckland, New Zealand. (in English). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Takeshi MAKI, Hiroshi MUTSUYOSHI and Mitsunori SASAKI: "Experimental Study on Restoring Force Model of RC Piles in Ground"Proceedings of JCI. Vol.22 (in Japanese) (printing). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 高野光司,牧剛史,睦好宏史: "RC杭-地盤系の静的載荷実験及び3次元有限要素解析"コンクリート工学年次論文報告書. Vol.2,Vol.3. 1273-1278 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 高野光司・牧剛史・睦好宏史: "RC杭-地盤系の静的載荷実験及び、3次元有限要素解析" コンクリート工学年次論文報告集. (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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