Wind and Structures

  • 제31권3호
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  • Pages.185-196
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  • 2020
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Reducing the wind pressure at the leading edge of a noise barrier

  • Han, Seong-Wook (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Ho-Kyung (Department of Civil and Environmental Engineering, Seoul National University) ;
  • Park, Jun-Yong (Department of Urban Infrastructure, Seoul Institute of Technology) ;
  • Ahn, Sang Sup (Structure Research Division, Korea Expressway Corporation Research Institute)
  • 투고 : 2018.08.23
  • 심사 : 2020.08.11
  • 발행 : 2020.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

A method to reduce the wind pressure at the leading edge of a noise barrier was investigated by gradually lowering the height of a member added to the end of the noise barrier. The shape of the lowered height of the added member was defined by its length and slope, and the optimal variable was determined in wind tunnel testing via the boundary-layer wind profile. The goal of the optimal shape was to reduce the wind pressure at the leading edge of the noise barrier to the level suggested in the Eurocode and to maintain the base-bending moment of the added member at the same level as the noise-barrier section. Using parametric wind tunnel investigation, an added member with a slope of 1:2 that protruded 1.2 times the height of the noise barrier was proposed. This added member is expected to simplify, or at least minimize, the types of column members required to equidistantly support both added members and noise barriers, which should thereby improve the safety and construction convenience of noise-barrier structures.

키워드

과제정보

This research was supported by grants (Project no. 0583-20150041) funded by the Korea Expressway Corporation Research Institute through the Institute of Construction and Environmental Engineering at Seoul National University.

참고문헌

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