Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of the Pipe Joint on Structural Performance of a Single-span Greenhouse: A Full-scale Experimental and Numerical Study

파이프 이음부가 단동온실 구조성능에 미치는 영향: 실대형 실험적 및 해석적 연구

  • Shin, Hyun Ho (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Ryu, Hee Ryong (R&D Performance Evaluation &Management Division, Research Policy Bureau, RDA) ;
  • Yu, In Ho (Vegetable Research Division, NIHHS, RDA) ;
  • Cho, Myeong Whan (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Seo, Tae Cheol (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Kim, Seung Yu (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Choi, Man Kwon (Protected Horticulture Research Institute, NIHHS, RDA)
  • 신현호 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 류희룡 (농촌진흥청 연구정책국 연구성과관리과) ;
  • 유인호 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 조명환 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 서태철 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 김승유 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 최만권 (농촌진흥청 국립원예특작과학원 시설원예연구소)
  • Received : 2021.10.05
  • Accepted : 2021.10.25
  • Published : 2021.10.31
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Abstract

This study was conducted in 8.2m wide single-span greenhouse to investigate the effect of presence or absence of rafter steel pipe joint and foundation conditions on greenhouse structural performance. Structural performance was evaluated by static loading test using the structural performance evaluation system for single-span greenhouse. The measured displacement was compared with the predicted result by numerical analysis. The displacement of each measurement location showed a significant difference regardless of the conditions of the foundation and presence or absence of rafter steel pipe joint. Compared to the hinge conditions, the difference in structural performance of the greenhouse in the fixed conditions was seen to be relatively large. The difference in structural performance according to presence or absence of rafter steel pipe joints, the lateral stiffness of the joint was 8.1% greater.

본 연구에서는 원예특작시설 내재해형 규격서에 등록되어 있는 폭이 넓은 단동온실(10-단동-5형)을 대상으로 기초의 경계조건과 서까래 강관의 이음 유무에 대해 실물 크기 실험을 실시하고 그 결과를 수치해석 결과와 비교하여 이음부가 있을 때 구조성능 차이에 대해 알아보았다. 각 측정 위치별 변위를 실험에서 측정한 값과 수치해석으로 예측한 값을 비교한 결과에서는 기초의 조건 및 서까래 강관 이음 유무에 상관없이 모두 상당한 차이를 보였고, 힌지 조건 보다 고정 조건이 상대적으로 차이가 컸다. 그리고 모든 절점을 강접합으로 가정하고 구조해석한 결과를 구조실험과 비교한 결과에서는 힌지조건이 고정조건 보다 잘 일치하였지만 해석값이 실험값 보다 크게 나타났다. 수치해석은 모든 절점을 강접합으로 가정했기 때문에 실제 성능과 달랐다. 따라서 현재 모든 절점을 강접합으로 가정하고 온실을 설계를 하면 과소설계될 우려가 있어 앞으로 신뢰성 높은 온실 설계를 위해서는 서까래와 도리가 교차하는 교차부 성능 특성을 고려한 구조해석 기술 개발이 이루어져야 할 것으로 판단된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 연구사업(과제번호: PJ01139701)의 지원에 의해 이루어진 것임.

References

  1. Choi M.K., H.R. Ryu, M.W. Cho, and I.H. Yu 2017, Effect of the member joint on structural performance of an arch-type multi-span greenhouse: A full-scale experimental and numerical study. Protected Hort Plant Fac 26:402-410. (in Korean) doi:10.12791/KSBEC.2017.26.4.402
  2. Choi M.K., H.R. Ryu, M.W. Cho, and I.H. Yu 2018, Evaluation of steel-pipe connections in plastic greenhouse using bending test. Protected Hort Plant Fac 27:391-399. (in Korean) doi:10.12791/KSBEC.2018.27.4.391.
  3. EN13031-1 2001, Greenhouse: Design and construction - part 1: Commercial production greenhouse. CEN, Brussels, Belgium, pp 34-59.
  4. Ha T.H., J.W. Kim, B.H. Cho, D.J. Kim, J.E. Jung, S.H. Shin, and H.J. Kim 2017, Finite element model updating of multi-span greenhouses based on ambient vibration measurements. Biosystems Engineering 161:145-156. doi:10.1016/j.biosystemseng.2017.06.019.
  5. JGHA 2016, Standard for structures safety of greenhouse. Japan Greenhouse Horticulture Association, Tokyo, Japan. pp 23-33.
  6. Jung J.E., D.J. Kim, H.J. Kim, S.H. Shin, and J.W. Kim 2017, Structural analysis modeling of disaster resilient greenhouse structures. J Comput Struct Eng Inst Korea 30:7-15. (in Korean) doi:10.7734/COSEIK.2017.30.1.7
  7. Lee J.Y. 2001, Visual fea user's maunal. Intuition Software, Jeonbuk, Korea.
  8. MAFRA 1999, Standard and explanation for greenhouse structural design. Ministry of Agriculture, Food; Rural Affairs, Suwon, Korea, pp 8-19.
  9. MAFRA and RDA 2014, Design and construction code on horticultural and herbal facilities for disaster resistance. Ministy of Agriculture, Food Rural Affairs and Rural Development Administration, Sejong, Korea.
  10. MLIT 2019, KDS 41 10 15. Ministry of Land, Infrastructure and Transport, Sejong, Korea. pp 22-85.
  11. MOHURD 2017, Code for the design load of horticultural greenhouse structures. Ministry of Housing, Urban-Rural Development, Beijing, PA, China. pp 10-22.
  12. NGMA 2004, Structural design manual. National Greenhouse Manufacturers Association, USA. pp 14-24.
  13. Ogawa H., I. Tsuge, Y. Sato, S. Hoshiba, and S. Yamashita 1990, Experimental analysis on strength of pipe-houses with ground anchoring (ii) - yield strength of joints, fixed piles and pipe connectors. Journal of the Society of Agricultural Structures, Japan 20:262-269. doi:10.11449/sasj1971.20.262
  14. Park J.S., Y.H. Kim, K.K. Seo, and Y.S. Kim 2011, Design of optimum section for structural members of wide span-type and 2-bay venlo-type glass green houses. J Bio-Env Con 20:50-57. (in Korean)
  15. Ramirez-Gomez A., E. Gallego, J.M. Fuentes, C. Gonzalez-Montellano, C.J. Porras-Prieto, and F. Ayuga 2014, Full-scale tests to measure stresses and vertical displacements in an 18.34m-diameter agricultural steel silo roof. Comput Electron Agric 106:56-65. doi:10.1016/j.compag.2014.05.008.
  16. Richardson G.M., and G.R. Westgate 1986, Full-scale measurements of the wind loads on film plastic clad greenhouses: A comparison of measured and calculated strains on the supporting hoops of a tunnel greenhouse. J Agric Eng Res 33:101-110. doi:10.1016/S0021-8634(86)80033-6
  17. Ryu H.R., E.H. Lee, M.W. Cho, I.H. Yu, and Y.C. Kim 2012, Evaluation on the behavioral characteristics of plastic greenhouse by full-scale testing and finite element analysis. J Bio-Env Con 21:459-465. (in Korean) doi:10.12791/KSBEC.2012.21.4.459
  18. Ryu H.R., M.W. Cho, I.H. Yu, and D.G. Moon 2014, Finite element modeling for structure-soil interaction analysis of plastic greenhouse foundation. Korean J Agric Sci 41:455-460. (in Korean) doi:10.7744/cnujas.2014.41.4.455
  19. Takahashi K., and Y. Uematsu 2018, Collapse process and reinforcement effects of pipe-framed greenhouses under wind loading based on a 3-D analysis. Journal of the Society of Agricultural Structures, Japan 49:77-85.
  20. Yu I.H., E.H. Lee, M.W. Cho, H.R. Ryu, and Y.C. Kim 2012, Development of multi-span plastic greenhouse for tomato cultivation. J Bio-Env Con 21:428-436. (in Korean) doi:10.12791/KSBEC.2012.21.4.428
  21. Ziapour B.M., and R. Dehnavi 2012, A numerical study of the arc-roof and the one-sided roof enclosures based on the entropy generation minimization. Comput Math with Appl 64:1636-1648. doi:10.1016/j.camwa.2012.01.012.