Analysis on Snow Distribution on Sunlight Greenhouse and Its Distribution Coefficient

Dai, Chunhui; Jiang, Xiugen; Ding, Min; Lv, Dongxin; Jia, Guilin; Zhang, Peng

doi:10.1007/978-3-319-19620-6_64

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Working conditions. Because the greenhouse is usually subjected to a variety of loads such as snow load and the weight of the rear roof covering, the load distribution on the greenhouse skeleton is relatively complex 21 .…”

Section: Governing Equations Greenhouse Load Conditions Are Calculated Using Equationmentioning

confidence: 99%

Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons

Liu

Zhang

et al. 2021

Sci Rep

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In recent years, the use of single-tube skeletons for the construction of Chinese solar greenhouses has increased. As a consequence, during the selection of the construction materials, the safety of these structures has become an important issue. The single tube section has various forms, but there is no scientific theory to guide the selection process. To the best of our knowledge, the scientific analysis of the impact of single pipe cross section on the safety of greenhouse skeleton has not been addressed so far. In this context, the finite element analysis software was used to calculate and analyze the stress elements, displacement of round tube, Ω tube, elliptic tube and square tube under the same load conditions. We used the Chinese Standard values as a reference and analyzed structural features of different sizes and thicknesses of the greenhouse steel skeleton sections under non-uniform snow load. The results showed that, under the same load condition, the maximum stress in the four skeleton materials was all located at the connection of the transverse tension bar and the front roof. In addition, under same load condition, the greenhouse skeleton with elliptic tube presented the smallest cross-sectional displacement between the different materials tested. The effect of increasing the size of the greenhouse frame was better than that of increasing the greenhouse material thickness. All this work will provide theoretical guidance to the material selection of this structure.

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Section: Governing Equations Greenhouse Load Conditions Are Calculated Using Equationmentioning

confidence: 99%

Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons

Liu

Zhang

et al. 2021

Sci Rep

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“…South-eastern Spain has the largest concentration of greenhouses with 30,000 ha, although according to 2018 data from the Chinese Ministry of Agriculture [1], China has the largest area in greenhouse cultivation at 3.7 × 10 6 ha. Most greenhouses are plastic-covered structures, and their structural safety has received attention due to the high economic costs of losses from complete or partial greenhouse collapses caused by severe weather such as wind and snow [2][3][4]. The mechanical performance of different greenhouse structures has been studied by numerical methods [5] and finite elements for static loads [6] and dynamic loads [7].…”

Section: Introductionmentioning

confidence: 99%

Design and Testing of a Structural Monitoring System in an Almería-Type Tensioned Structure Greenhouse

Peña

Peralta

Marín

2020

Sensors

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Greenhouse cultivation has gained a special importance in recent years and become the basis of the economy in south-eastern Spain. The structures used are light and, due to weather events, often collapse completely or partially, which has generated interest in the study of these unique buildings. This study presents a load and displacement monitoring system that was designed, and full scale tested, in an Almería-type greenhouse with a tensioned wire structure. The loads and displacements measured under real load conditions were recorded for multiple time periods. The traction force on the roof cables decreased up to 22% for a temperature increase of 30 °C, and the compression force decreased up to 16.1% on the columns or pillars for a temperature and wind speed increase of 25.8 °C and 1.9 m/s respectively. The results show that the structure is susceptible to daily temperature changes and, to a lesser extent, wind throughout the test. The monitoring system, which uses load cells to measure loads and machine vision techniques to measure displacements, is appropriate for use in different types of greenhouses.

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Analysis on Snow Distribution on Sunlight Greenhouse and Its Distribution Coefficient

Cited by 2 publications

References 2 publications

Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons

Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons

Design and Testing of a Structural Monitoring System in an Almería-Type Tensioned Structure Greenhouse

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