Effects of sidewall openings on the wind loads on pipe-framed greenhouses

Yasushi Uematsu, Koichi Nakahara, Satoshi Tanaka, Hideki Moriyama, Sadanori Sase

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Wind pressures acting on the external and internal surfaces of a 1:40 scale model of pipe-framed greenhouse with porous sidewalls are measured simultaneously at many points in a turbulent boundary layer. Wind speeds at several points outside and inside the greenhouse model are also measured. The porosity of the sidewalls is changed over a wide range. The equivalent static wind force coefficients generating the maximum peak response are evaluated by using the LRC (Load Response Correlation) method, in which the bending moment developed in the frame at the windward column base is regarded as the most important load effect. The effects of porosity on the wind-induced response of the frame as well as on the wind speeds inside the greenhouse are discussed. The results indicate that the porosity of approximately 0.5 can reduce the maximum bending moment by approximately 20 percent without a significant increase in wind speed inside the greenhouse.

Original languageEnglish
Title of host publication7th Asia-Pacific Conference on Wind Engineering, APCWE-VII
Publication statusPublished - 2009 Dec 1
Event7th Asia-Pacific Conference on Wind Engineering, APCWE-VII - Taipei, Taiwan, Province of China
Duration: 2009 Nov 82009 Nov 12

Publication series

Name7th Asia-Pacific Conference on Wind Engineering, APCWE-VII

Other

Other7th Asia-Pacific Conference on Wind Engineering, APCWE-VII
CountryTaiwan, Province of China
CityTaipei
Period09/11/809/11/12

Keywords

  • Dynamic load effect
  • Load reduction
  • Pipe-framed greenhouse
  • Sidewall opening
  • Wind load
  • Wind-tunnel experiment

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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