• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of dynamic simulation method for floating bridges subjected to wind and wave loadings

Research Project

Project/Area Number 13555131
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 構造工学・地震工学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

WATANABE Eiichi  Dept. of Civil Engineering. Professor, 工学研究科, 教授 (30026174)

Co-Investigator(Kenkyū-buntansha) TANAKA Hiroshi  Hitachi Zosen Corporation, 海洋土木設計部, 部長(研究職)
NAGATA Kazutoshi  Dept. of Civil Engineering, Research Associate, 工学研究科, 助手 (40301238)
UTSUNOIIYA Tomoaki  Dept. of Civil Engineering, Assoc. Professor, 工学研究科, 助教授 (10211773)
NAGATA Shuichi  Hitachi Zosen Corporation, 海洋土木設計部, 主管研究員(研究職)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥10,800,000 (Direct Cost: ¥10,800,000)
Fiscal Year 2002: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2001: ¥8,000,000 (Direct Cost: ¥8,000,000)
Keywordsfloating bridge / wave response analysis / simulation / modal method / dynamic response analysis / wind tunnel experiment / fender mooring / 風応答 / 波浪応答 / メモリー効果 / 浮体基礎 / シュミレーション
Research Abstract

The objective of this research is to develop a method for prediction of dynamic response of a floating bride subjected to wind and wave loadings where the following three items can be considered at the same time 1) elastic deformation of the superstructure, 2) frequency dependence of the hydrodynamic forces, and 3) nonlinear restoring force characteristics of the mooring system. In order to realize such a methodology, the following procedure has been implemented: 1) the super-structure of the floating bridge is modeled by Finite Element Method (FEM; NASTRAN is actually used) and the hydrodynamic force characteristics including frequency dependency is modeled by added-mass and damping characteristics defined at the nodal-points of the floating foundations, 2) in the modal-coordinates, the memory-effect function of the frequency-dependent hydrodynamic force and the nonlinear restoring force characteristics is solved by Newmark-β method.
Then, the development of a computer program for prediction of dynamic response of a floating bridge subjected to irregular waves in the time domain has been made. In this research, the floating bridge with separate-type floating foundations is considered. The floating foundations are modeled as rigid-bodies, each of which having six degree of freedoms, and the super-structure, which connects the floating foundations, is modeled as linear elastic-body. The mooring systems are modeled as springs having nonlinear restoring force characteristics. Because of the frequency-dependence of the radiation wave forces, the memory effect has been taken into account in the time domain. The methodology of the developed program is presented with several numerical examples for a typical floating bridge with separate-type floating foundations.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 渡邊 英一: "メモリー効果を考慮した浮体の時刻歴波浪応答解析"構造工学論文集. 48A. 963-969 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊 英一: "円筒浮体群に作用する波力の解析解"構造工学論文集. 48A. 947-956 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊 英一: "浮体橋の波浪応答シミュレーションプログラムの開発"構造工学論文集. 49A. 661-668 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] E.Watanabe: "Development of Dynamic Response Analysis Program for Floating Bridge subjected Wind and Wave Loadings"Proceedings of International Symposium on Ocean Space Utilization Technology. 449-456 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] E. Watanabe, T. Utsunomiya, N. Yoshizawa: "Wave response analysis of a floating body in the time-domain considering memory effect"J. Structural Eng.. Vol.48A. 963-969 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] E. Watanabe, T. Utsunomiya, T. Hashimoto: "Analytical solutions for wave forces on an array of truncated floating cylinders"J. Structural Eng.. Vol.48A. 947-956 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] E. Watanabe, T. Utsunomiya, T. Okafuji: "Development of response simulation program of a floating bridge subjected to irregular waves"J. Structural Eng.. Vol.49A. 661-668 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] E. Watanabe, T. Utsunomiya: "Development of dynamic response analysis program for floating bridges subjected to wind and wave loadings"Proc. of International Symposium on Ocean Space Utilization Technology. 449-456 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 渡邊 英一: "メモリー効果を考慮した浮体の時刻歴波浪応答解析"構造工学論文集. 48A. 963-969 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 渡邊 英一: "円筒浮体群に作用する波力の解析解"構造工学論文集. 48A. 947-956 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 渡邊 英一: "浮体橋の波浪応答シミュレーションプログラムの開発"構造工学論文集. 49A. 661-668 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 渡邊英一, 宇都宮智昭, 橋本達典: "円筒浮体群に作用する波力の解析解"構造工学論文集. 第48A巻(発表予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 渡邊英一, 宇都宮智昭, 吉澤直: "メモリー効果を考慮した浮体の時刻歴波浪応答解析"構造工学論文集. 第48A巻(発表予定). (2002)

    • Related Report
      2001 Annual Research Report

URL: 

Published: 2001-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi