IDENTIFICATION OF DYNAMIC CHARACTERISTICS BY FIELD VIBRATION TEST IN TSURUMI TSUBASA BRIDGE

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  • Yamaguchi Hiroki
    社団法人 土木学会 埼玉大学 工学部建設工学科
  • Takano Haruo
    社団法人 土木学会 首都高速道路公団 神奈川建設局設計課
  • Ogasawara Masafumi
    社団法人 土木学会 首都高速道路公団 工務部設計技術課
  • Shimosato Tetsuhiro
    社団法人 土木学会 首都高速道路公団 計画部第1計画課
  • Kato Masashi
    社団法人 土木学会 NKK基盤技術研究所 都市工学研究部
  • Okada Jun
    社団法人 土木学会 NKK基盤技術研究所

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Other Title
  • 鶴見つばさ橋の振動実験による動的特性の同定
  • ツルミツバサ バシ ノ シンドウ ジッケン ニヨル ドウテキ トクセイ ノ ド

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Abstract

Field vibration test of Tsurumi Tsubasa Bridge, whose main span is the longest in the world among the single plane supported cable stayed bridges, was executed. Identification of the dynamic characteristics such as natural frequency, vibrational mode, modal damping, was done by different methods and the accuracy of identified values was first discussed. Then the dynamic characteristics of Tsurumi Tsubasa Bridge were investigated in comparison with those of other cable stayed bridges. It was found that the modal damping is higher and the natural frequency is lower compared with other cable stayed bridges whose main span is close to this bridge's.

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