Analysis of wind-induced responses of landing assembled Chinese solar greenhouses

Wang, Cong; Jiang, Yingchun; Wang, Tieliang; Xu, Zhezhuang; Bai, Yanchao

doi:10.1016/j.biosystemseng.2022.06.003

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…The LASF is known for its low construction cost and large interior space for agricultural machinery. Furthermore, it allows for the application of flexible walls made of insulation blankets, which are also increasingly favored recently over conventional north walls typically built with bricks or rammed earth [11,12]. Thereby, the LASF has become an increasingly popular choice for solar greenhouse construction.…”

Section: Introductionmentioning

confidence: 99%

“…Their findings revealed that frames utilizing elliptical tubes exhibited the least cross-section displacement, whereas those with round tubes showed the lowest levels of normal stress. Furthermore, Bai et al identified that the maximum bending moment experienced by an 8.0 m span LASF with elliptical tubes could be modified by adjusting the incline angle of the north column [12]. Moriyama et al observed that the maximum permissible snow load on a greenhouse frame diminishes as ridge heights increase [17].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Structural Performance in a Single-Tube Frame for 12 m-Span Chinese Solar Greenhouses Subjected to Snow Loads

Li,

Wei,

Zhao

et al. 2024

Agronomy

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To address the structural concerns of a 12.0 m-span landing assembled single-tube frame (LASF) for Chinese solar greenhouses subjected to snow loads, the internal forces and deformations of LASF and its reinforced counterpart (RLASF) were numerically simulated to determine the ultimate bearing capacities (Lu) and the failure loads (Lf). During the simulations, steel tubes were modeled as beam188 elements and cables as link180 elements. The frame constraints and the connections were assumed to be fixed supports and rigid, respectively. The loads were determined according to the Chinese standard (GB51183-2016). Simulations revealed that the LASF and RLASF primarily withstand bending moments and are prone to strength failures under snow loads. Both exhibited lower Lu and Lf under non-uniform snow loads than under uniform snow loads. The results also indicated that crop loads could deteriorate the structural safety of the LASF and RLASF. Lu and Lf were found to be proportional to the section modulus of the tubes. The effects of wind loads and initial geometry imperfections on Lf of the LASF and RLASF can be neglected. Furthermore, the RLASF exhibited higher Lf compared to the LASF. Steel usage of the RLASF could be further reduced by replacing circular tubes with rectangular tubes, making the RLASF a feasible option for constructing Chinese solar greenhouses.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%