Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints
This study evaluated the structural safety of 9 greenhouse types under extreme weather loads using a nonlinear finite element method (FEM) model that accounts for material nonlinearity of clamp joint. Clamp joints were modeled as interface elements representing elastoplasticity, with stiffness and l...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S259012302500194X |
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| author | Byung-Hun Seo Sangik Lee Do-Kyung Kim Jong-Hyuk Lee Dong-Su Kim Dong-Woo Kim Yerim Jo Won Choi |
| author_facet | Byung-Hun Seo Sangik Lee Do-Kyung Kim Jong-Hyuk Lee Dong-Su Kim Dong-Woo Kim Yerim Jo Won Choi |
| author_sort | Byung-Hun Seo |
| collection | DOAJ |
| description | This study evaluated the structural safety of 9 greenhouse types under extreme weather loads using a nonlinear finite element method (FEM) model that accounts for material nonlinearity of clamp joint. Clamp joints were modeled as interface elements representing elastoplasticity, with stiffness and limit strength estimated through loading tests. The FEM model assessed the structural safety of the greenhouses based on allowable stress design criteria, including combined stress. Loading test on two types of clamp joints revealed that SP (Steel-plate) joints exhibited more than twice the limit strength of SW (Steel-wire) joints. This result highlights the potential structural vulnerability of low-cost greenhouses constructed exclusively with SW joints. The nonlinear finite element method (FEM) results identified side rafter pipes as the most vulnerable members due to excessive stress redistributed from semi-rigid joints, while the columns were found to contribute minimally to structural performance. FS values were consistently lower under snow loads than wind loads, with nonlinear FEM showing an average FS reduction of 7.8 % and 4.7 % compared to linear FEM, respectively. Among design parameters, rafter pipe diameter had the greatest impact on FS, while purlin count had minimal influence. These results emphasize the necessity of considering semi-rigid joint behavior in greenhouse design to ensure structural safety under extreme weather conditions. The reliable nonlinear FEM framework developed in this study provides valuable insights for designing safer greenhouses and evaluating existing ones. |
| format | Article |
| id | doaj-art-bd41ba5454744651bd13d540b2b42757 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-bd41ba5454744651bd13d540b2b427572025-01-24T04:45:38ZengElsevierResults in Engineering2590-12302025-03-0125104106Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp jointsByung-Hun Seo0Sangik Lee1Do-Kyung Kim2Jong-Hyuk Lee3Dong-Su Kim4Dong-Woo Kim5Yerim Jo6Won Choi7Department of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea; Integrated Major in Global Smart Farm, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Agricultural Civil Engineering, College of Agriculture and Life Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South KoreaDepartment of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea; Integrated Major in Global Smart Farm, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea; Corresponding author at: Department of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea.This study evaluated the structural safety of 9 greenhouse types under extreme weather loads using a nonlinear finite element method (FEM) model that accounts for material nonlinearity of clamp joint. Clamp joints were modeled as interface elements representing elastoplasticity, with stiffness and limit strength estimated through loading tests. The FEM model assessed the structural safety of the greenhouses based on allowable stress design criteria, including combined stress. Loading test on two types of clamp joints revealed that SP (Steel-plate) joints exhibited more than twice the limit strength of SW (Steel-wire) joints. This result highlights the potential structural vulnerability of low-cost greenhouses constructed exclusively with SW joints. The nonlinear finite element method (FEM) results identified side rafter pipes as the most vulnerable members due to excessive stress redistributed from semi-rigid joints, while the columns were found to contribute minimally to structural performance. FS values were consistently lower under snow loads than wind loads, with nonlinear FEM showing an average FS reduction of 7.8 % and 4.7 % compared to linear FEM, respectively. Among design parameters, rafter pipe diameter had the greatest impact on FS, while purlin count had minimal influence. These results emphasize the necessity of considering semi-rigid joint behavior in greenhouse design to ensure structural safety under extreme weather conditions. The reliable nonlinear FEM framework developed in this study provides valuable insights for designing safer greenhouses and evaluating existing ones.http://www.sciencedirect.com/science/article/pii/S259012302500194XNonlinear FEMStructural safety assessmentDisaster-resistant greenhouseSemi-rigid clamp jointExtreme weather |
| spellingShingle | Byung-Hun Seo Sangik Lee Do-Kyung Kim Jong-Hyuk Lee Dong-Su Kim Dong-Woo Kim Yerim Jo Won Choi Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints Results in Engineering Nonlinear FEM Structural safety assessment Disaster-resistant greenhouse Semi-rigid clamp joint Extreme weather |
| title | Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints |
| title_full | Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints |
| title_fullStr | Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints |
| title_full_unstemmed | Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints |
| title_short | Structural safety assessment procedure of plastic single-span greenhouses considering semi-rigid clamp joints |
| title_sort | structural safety assessment procedure of plastic single span greenhouses considering semi rigid clamp joints |
| topic | Nonlinear FEM Structural safety assessment Disaster-resistant greenhouse Semi-rigid clamp joint Extreme weather |
| url | http://www.sciencedirect.com/science/article/pii/S259012302500194X |
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