Magazine of the Korean Society of Agricultural Engineers (한국농공학회지)

The Korean Society of Agricultural Engineers (한국농공학회)
권호 표지

Structural Improvement of the Shading Structures against Meteorological Disasters in Ginseng Fields

인삼재배 해가림시설의 기상재해와 구조개선대책

  • 남상운 (충남대학교 농업생명과학대학)
  • Published : 2003.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to set up structural improvement strategy against meteorological disasters of the shading structures in ginseng fields, structural safety analyses as well as some case studies of structural damage patterns were carried out. According to the results of structural safety analysis, allowable safe snow depth for type B(wood frame with single span) was 25.9 cm, and those for type A(wood frame with multi span) and type C and D (steel frame with multi span) were 17.6 cm, 25.8 cm, and 20.0 cm respectively. So types of shading structures should be selected according to the regional design snow depth. An experiential example study on meteorological disasters indicated that a strong wind damage was experienced once every 20 years, and a heavy snow damage once every 9.5 years. The most serious disasters were caused by heavy snow and it was found that a half break and complete collapse of structures were experienced by about 70% of snow damage. In addition to maintenance, repair and reinforcement, it is also recommended that improved model of shading structures for ginseng cultivation should be developed as a long term countermeasures against meteorological disasters.

Keywords

References

  1. Design standard and explanation of steel pipe structure Architectural Institute of Korea
  2. Design of wood structures ASD Breyer,D.E.;K.J.Fridly;K.E.Cobeen
  3. Proceedings of the international symposium on development strategy of medicinal plant Prospects for ginseng industrialization in Korea Cho,J.S.
  4. Ginseng cultivation Cho,J.S.;S.K.Mok;J.Y.Won
  5. Agricutural structures Kim,M.K.(et al.)
  6. Properties and processing of tropical wood Korea Forest Research Institute
  7. Nominal sizes of sawn lumber. KS F 1519 Korean Standards Association
  8. Wood physics and mechanics Lee,H.H.(et al.)
  9. Structures and environment handbook. MWPS-1 v.409 Midwest Plan Service
  10. Ministry of Agriculture and Forestry Ministry of Agriculture and Forestry
  11. List of repair expenses for facilities damaged by meteorological disaster in horticultrue and special production Ministry of Agriculture and Forestry
  12. Standard on yield strength of the building structure Ministry of Construction and Transportation
  13. Proceedings of the KSAE 2002 annual conference Field survey on the shading structure and environmental management for ginseng cultivation Nam,S.W.
  14. Proceedings of the KSBEC 2003 spring conference Investigations on the shading structures in ginseng field Nam,S.W.
  15. NACF yearbook 2000 National Agricultural Cooperative Federation
  16. Korean J. Ginseng Sci. v.20 no.1 Rearch on ginseng production during the past 20 years Park,H.
  17. Standard cultivation methods for ginseng. RDA 2001-8 Rural Development Administration
  18. Agricultural buildings and structure Whitaker,J.H.