フェアリングプレート型遮音壁の遮音性能

比江島 慎二; 平川 陽介; 井保 大志; 濱野 陽一郎

doi:10.14887/kazekosymp.18.0.000095.0

PROCEEDINGS OF 18th NATIONAL SYMPOSIUM ON WIND ENGINEERING

DOI https://doi.org/10.14887/kazekosymp.18.0.000095.0

Conference information

Host: Science Council of Japan

Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japanese Society of Civil Engineering, Meteorological Society of Japan

sound shielding efficiency of a noise barrier with a fairing plate

*shinji hiejima, yosuke hirakawa, taishi iho, yoichiro hamano

Author information

Keywords: noise barrier, fairing plate, aerodynamic stability, boundary element method

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 000095

Details

Abstract

A new type of noise barrier with a fairing plate has been proposed to improve the aerodynamic stability of viaducts with noise barriers. However, such appendage is likely to lower the sound shielding efficiency. In this study, the sound shielding efficiency of the noise barrier with a fairing plate is examined through BEM. It is found that the sound shielding efficiency is higher, as the diffraction frequency is more abounding. The sound shielding efficiency is remarkably improved by the installation of sound absorbing materials to the upper surface of the fairing plate.

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