RELATIONSHIP BETWEEN BRIDGE PERFORMANCE AND MODAL PROPERTIES BASED ON FIELD STATIC LOAD AND VIBRATION TESTS

DOI Web Site 2 Citations 5 References
  • KONDO Yosuke
    京都大学大学院 工学研究科社会基盤工学専攻
  • HAYASHI Gen
    京都大学大学院 工学研究科社会基盤工学専攻
  • OSHIMA Yoshinobu
    土木研究所 構造物メンテナンス研究センター
  • KIM Chul-Woo
    京都大学大学院 工学研究科社会基盤工学専攻

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Other Title
  • 現地載荷試験に基づく PC 橋の橋梁性能および振動モニタリング

Abstract

<p>This study aims to examine how changes in load resistance capacity of a prestressed concrete bridge (PC bridge) influence on their modal properties. Static loading test was carried out under step-by-step loading until failure. In addition, forced vibration tests were carried out along the static loading test in order to assess the changes in the modal properties of the PC bridge with different health conditions. Energy performance calculated by load-displacement relation is used in order to estimate the structural performance of the PC bridge. Observations showed strong relationships between 2nd bending modal frequency and the level of structural performance. This indicates the usefulness of the 2nd bending mode in vibration-based bridge health monitoring for PC bridges.</p>

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