道路橋の低周波音の発生と伝搬特性

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書誌事項

タイトル別名
  • Occurrence and Propagation Characteristics of Low Frequency Sound from Highway Bridges
  • ドウロキョウ ノ テイシュウハオン ノ ハッセイ ト デンパン トクセイ

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抄録

In order to clarify a mechanism that a low frequency sound occurs from road bridges, we have studied measurement results obtained from tests where test cars passed on bridges in the preservice road sections.<br>As a result, it is ascertained that the low frequency sound occurring from road bridges emerges with bridge vibration, which is a dipole sound source, and that it depends on vehicle velocity and weight. Furthermore, in accordance to the measurement results obtained from the tests where vehicles passed on a bridge joint step, it has been confirmed that the low frequency sound less than 8-10Hz is affected by bridge span vibration and that the low frequency sound more than 8-10Hz is affected by bridge joint noise.

収録刊行物

  • 騒音制御

    騒音制御 28 (4), 291-297, 2004

    公益社団法人 日本騒音制御工学会

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