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A Study on Development of Ultimate Earth quake-Resistance Design and Retrofit Methods for Steel Bridge Piers

Research Project

Project/Area Number 07555142
Research Category

Grant-in-Aid for Scientific Research (A)

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

Principal Investigator

USAMI Tsutomu  Nagoya University, Department of Civil Engineering, Professor, 工学研究科, 教授 (50021796)

Co-Investigator(Kenkyū-buntansha) GE Hanbin  Nagoya University, Department of Civil Engineering, Asst.Professor, 工学研究科, 助手 (90262873)
MIZUNO Eiji  Nagoya University, Department of Civil Engineering, Assoc.Professor, 工学研究科, 助教授 (80144129)
ITOH Yoshito  Nagoya University, Center for Integrated Research in Science and Engineering, Pr, 理工科学総合研究センター, 教授 (30111826)
鈴木 森晶  名古屋大学, 工学部, 助手 (90273276)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥9,500,000 (Direct Cost: ¥9,500,000)
Fiscal Year 1997: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥6,600,000 (Direct Cost: ¥6,600,000)
KeywordsSteel bridge pier / Seismic design / Ultimate Strength / Ductility / Failure / Buckling / Seismic response analysis / Restoring force model / ハイブリッド実験 / 充填コンクリート
Research Abstract

The present study is aiming at developing ultimate earthquake-resistance design and retrofit methods for steel bridge piers. For this purpose, elasto-plastic behavior of steel bridge piers is investigated analytically and experimentally. Based on the results obtained from both the analysis and test, the findings can be summarized in the following aspects.
1) Strength and ductility
To improve the seismic performance (i.e., strength and ductility) of steel bridge piers, two ways are considered : (1) to specify certain limits tothe structural parameters such as plate slenderness ratio, column slenderness ratio, and stiffener's rigidity, (2) to fill concrete into the section near the base so as to prevent or delay buckling of plate panels. As for the concrete-filled steel bridge piers, we proposed an ultimate earthquake-resistance design method based on a large numbers of tests and numerical analyzes. In the proposal, a push-over analysis is employed to compute the load-displacement relation … More of the pier. The strength and ductility computed with the proposed method are compared with experimental results. Moreover, a similar analytical investigation on the strength and ductility of steel octagonal section columns is also carried out. Furthermore, the application of the present proposal is extended to generalized commercial software such as MARC and ABAQUS for practical design.
2) Pseudo-dynamic Tests
Steel box column specimens modeling steel bridge piers are tested pseudo-dynamically using the accelerograms obtained during the Hygoken-nanbu earthquake that struck Kobe area on Jan.17,1995. The results indicate that the natural period and presence of the filled-in concrete have a significant effect on the seismic response (maximum displacement response and residual displacement response) of steel piers. A relation between the maximum displacement response and residual displacement response is proposed on the basis of the test results, and verified by an extensive elasto-plastic seismic response analysis. On the other hand, the validity of the proposal for designing high ductility steel bridge piers is verified by the pseudo-dynamic test.
3) Elasto-plastic Seismic Response Analysis
From the results of static and quasi-static tests, a hysteresis model of the steel bridge pier is constructed. The developed model named 2-Parameter Model is verified using the pseudo-dynamic test results, and applied to clarify the seismic behavior of steel bridge piers under the Hyogoken-nanbu carthquake. The results show that the JMA accelerogram is a tremendously severe wave for short piers or those with low natural periods. Also, a hysteresis model is constructed for the concrete-filled steel bridge piers.
4) Elasto-plastic Cyclic Analysis
Elasto-plastic Behavior of steel bridge piers with box or pipe sections under cyclic loading is studied using the ABAQUS program with the inclusion of the modified two-surface model developed at Nagoya University. Comparison between the analytical and experimental results indicates that the modified two-surface model can be used to predict the inelastic cyclic behavior of steel structures with good accuracy. From the parametric study some empirical formulas are proposed to predict the strength and ductility of such piers. Less

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (46 results)

All Other

All Publications (46 results)

  • [Publications] 鈴木 森晶・宇佐美 勉・寺田 昌弘・伊藤 努・才塚 邦宏: "鋼製箱形断面橋脚の復元力モルと弾塑性地震応答解析" 土木学会論文集. No.549/I-37. pp.191-204 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 才塚 邦宏・宇佐美 勉・芳崎 一也・鈴木 森晶: "兵庫県南部地震観測地震波を用いたハイブリッド地震応答実験による鋼製橋脚の激震時挙動" 土木学会論文集. No.556/I-38. pp.119-129 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 渡辺 孝一・宇佐美 勉・金田一 智章・鈴木 森晶・岡本 隆・池田 茂: "ハイダクティリティー鋼製橋脚の提案〜ハイブリッド地震応答実験による検証〜" 第2回阪神・淡路大震災に関する学術講演会論文集. pp.361-368 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 葛 漢彬・高 聖彬・宇佐美 勉・松村 寿男: "繰り返し荷重を受ける鋼製パイプ断面橋脚の強度と変形能に関する解析的研究" 第2回阪神・淡路大震災に関する学術講演会論文集. pp.377-384 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 山田 尚之・葛西 昭・宇佐美 勉: "コンクリートを部分的に充填した鋼製八角形断面柱の最適充填率と変形能に関する解析的研究" 構造工学論文集. Vol.43A. pp.237-243 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 子林 稔・宇佐美 勉・鈴木 森晶: "コンクリート部分充填鋼製橋脚の復元力モデルと弾塑性地震応答解析" 構造工学論文集. Vol.43A. pp.859-868 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 葛 漢彬・高 聖彬・宇佐美 勉: "鋼製補剛箱形断面橋脚の繰り返し解析と耐震性評価" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. pp.85-92 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 葛西 昭・天野 麻衣・宇佐美 勉・葛 漢彬・岡本 真悟・前野 裕文: "コンクリート部分充填鋼製橋脚の非線形解析と実験" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. pp.153-160 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 鈴木 森晶・水越 秀和・宇佐美 勉: "鋼製橋脚の非線形動的解析" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. pp.245-252 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Usami, T., Ge, H.B.and Saizuka, K.: "Behavior of Partially Concrete-filled Steel Bridge Piers Under Cyclic and Dynamic Loading" Journal of Constructional Steel Research. Vol.41,No.2/3. pp.121-136 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宇佐美 勉: "ハイダクティリティー鋼製橋脚" 橋梁と基礎. Vol.31,No.6. pp.30-36 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 才塚 邦宏・宇佐美 勉: "コンクリート部分充填鋼製橋脚の終局耐震設計法と耐震実験による検証" 土木学会論文集. No.570/I-40. pp.287-296 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 葛西 昭・葛 漢彬・宇佐美 勉: "コンクリート部分充填鋼製橋脚の耐震性能" 橋梁と基礎. Vol.31,No.9. pp.23-29 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宇佐美 勉・水越 秀和・鈴木 森晶: "鋼製橋脚の要求性能と保有性能" 橋梁と基礎. Vol.32,No.1. pp.45-49 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 芳崎 一也・宇佐美 勉・才塚 邦宏: "鋼製橋脚に大きな損傷を与える地震波の成分" 土木学会論文集. No.584/I-42. pp.125-134 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Suzuki, M., Usami, T., Terada, M., Itoh, T., and Saizuka, K.: "Hysteresis Models for Steel Bridge Piers and Their Application to Elasto-Plastic Seismic Response Analysis" J.of Struct.Mech, and Earthquake Eng., JSCE. No.549/I-37. 191-204 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Saizuka, K., Usami, T., Yoshizaki, K., and Suzuki, M.: "Hybrid Testing of Steel Bridge Pier Models using the Hyogoken-nanbu Earthquake Accelerograms" J.of Struct.Mech.and Earthquake Eng., JSCE. No.556/I-38. 119-129 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Watanabe, K., Usami., T., Kindaichi, T., Suzuki, M., Okamoto, T., and Ikeda, S.: "A Proposal for High Ductility Steel Bridge Piers" Proc.of the 2^<2nd> Conference on Hanshin-Awaji Great Earthquake, JSCE. 361-368 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ge, H.B., Gao, S.B., and Usami, T.: "Analytical Study on Strength and Deformation of Pipe-sectional Steel Bridge Piers under Cyclic Loading" Proc.of the 2_<nd> Conference on Hanshin-Awaji Great Earthquake, JSCE. 377-384 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yamada, N., Kasai, A., and Usami, T.: "An Analytical Study on the Optimum Height of Filled-in Concrete and Ductility of Steel Octagonal Section Column" J.of Struct.Eng., JSCE. Vol.43A. 237-237 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kobayashi, M., Usami, T., and Suzuki, M.: "A Hysteresis Model for Concrete-filled Steel Bridge Piers and its Application to Elasto-Plastic Seismic Response Analysis" J.of Struct.Eng., JSCE. Vol.43A. 859-868 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ge, H.B., Gao, S.B., and Usami, T.: "Nonlinear Analysis and Ductility Evaluation of Stiffened Box-sectional Steel Bridge Piers" Proc.of Nonlinear Numerical Analysis and Seismic Design of Steel Bridge Piers, JSCE. 85-92 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kasai, A., Amano, M., Usami, T., Ge, H.B., Okamoto, S., and Maeno, H.: "Nonlinear Analysis and Tests of Partially Concrete-filled Steel Bridge Piers" Proc.of Nonlinear Numerical Analysis and Seismic Design of Steel Bridge Piers, JSCE. 153-160 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Suzuki, M., Mizukoshi, H., and Usami, T.: "Nonlinear Dynamic Analysis of Steel Bridge Piers" Proc.of Nonlinear Numerical Analysis and Seismic Design of Steel Bridge Piers, JSCE. 245-252 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Usami, T., Ge, H.B.and Saizuka, K.: "Behavior of Partially Concrete-filled Steel Bridge Piers Under Cyclic and Dynamic Loading" J.Construct Steel Research. Vol.41. 121-136 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Usami T.: "High Ductility Steel Bridge Piers" Bridge and Foundation Eng.Vol.31, No.6. 30-36 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Saizuka, K., and Usami, T.: "Verification of Proposed Method for Check of Ultimate Earthquake Resistance on the Basis of Hybrid Test Results Concrete-Filled" J.of Struct.Mech.and Earthquake Eng., JSCE. No.570/I-40. 287-296 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kasai, A., Ge, H.B., and Usami, T.: "Seismic Performance of Partially Concrete-filled Steel Bridge Piers" Bridge and Foundation Eng.Vol.31, No.9. 23-29 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Usami, T., Mizukoshi, H., and Suzuki, M.: "Demand and Supply of Steel Bridge Piers" Bridge and Foundation Eng.Vol.32, No.1. 45-49 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshizaki, K., Usami, T., and Saizuka, K.: "Components of Earthquake Waves Causing Severe Damage to Steel Bridge Piers" J.of Struct.Mech.and Earthquake Eng., JSCE. No.584/I-42. 125-134 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 鈴木森晶・宇佐美勉・寺田昌弘・伊藤努・才塚邦宏: "鋼製箱形断面橋脚の復元力モルと弾塑性地震応答解析" 土木学会論文集. No.549/I-37. 191-204 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 才塚邦宏・宇佐美勉・芳崎一也・鈴木森晶: "兵庫県南部地震観測地震波を用いたハイブリッド地震応答実験による鋼製橋脚の激震時挙動" 土木学会論文集. No.556/I-38. 119-129 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 渡辺孝一・宇佐美勉・金田一智章・鈴木森晶・岡本隆・池田茂: "ハイダクティリティー鋼製橋脚の提案〜ハイブリッド地震応答実験による検証〜" 第2回阪神・淡路大震災に関する学術講演会論文集. 361-368 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 葛 漢彬・高 聖彬・宇佐美勉・松村寿男: "繰り返し荷重を受ける鋼製パイプ断面橋脚の強度と変形能に関する解析的研究" 第2回阪神・淡路大震災に関する学術講演会論文集. 377-384 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山田尚之・葛西昭・宇佐美勉: "コンクリートを部分的に充填した鋼製八角形断面柱の最適充填率と変形能に関する解析的研究" 構造工学論文集. Vol.43A. 237-243 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 子林 稔・宇佐美勉・鈴木森晶: "コンクリート部分充填鋼製橋脚の復元力モデルと弾塑性地震応答解析" 構造工学論文集. Vol.43A. 859-868 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 葛 漢彬・高 聖彬・宇佐美勉: "鋼製補剛箱形断面橋脚の繰り返し解析と耐震性評価" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. 85-92 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 葛西昭・天野麻衣・宇佐美勉・葛 漢彬・岡本真悟・前野裕文: "コンクリート部分充填鋼製橋脚の非線形解析と実験" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. 153-160 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 鈴木森晶・水越秀和・宇佐美勉: "鋼製橋脚の非線形動的解析" 鋼製橋脚の非線形数値解析と耐震設計に関する論文集. 245-252 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Usami,T., Ge,H.B. and Saizuka,K.: "Behavior of Partially Concrete-filled Steel Bridge Piers Under Cyclic and Dynamic Loading" Journal of Constructional Steel Research. Vol.41,No.2/3. 121-136 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宇佐美勉: "ハイダクティリティー鋼製橋脚" 橋梁と基礎. Vol.31,No.6. 30-36 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 才塚邦宏・宇佐美 勉: "コンクリート部分充填鋼製橋脚の終局耐震設計法と耐震実験による検証" 土木学会論文集. No.570/I-40. 287-296 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 葛西 昭・葛 漢彬・宇佐美勉: "コンクリート部分充填鋼製橋脚の耐震性能" 橋梁と基礎. Vol.31,No.9. 23-29 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宇佐美勉・水越秀和・鈴木森晶: "鋼製橋脚の要求性能と保有性能" 橋梁と基礎. Vol.32,No.1. 45-49 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 芳崎一也・宇佐美勉・才塚邦宏: "鋼製橋脚に大きな損傷を与える地震波の成分" 土木学会論文集. No.584/I-42. 125-134 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 才塚・宇佐美・芳崎・鈴木: "兵庫県南部地震観測地震波を用いたハイブリッド地震応答実験による鋼製橋脚の激震時挙動" 土木学会論文集. No.556/I-38. 119-129 (1997)

    • Related Report
      1996 Annual Research Report

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