Nonlinear finite element analysis of the bearing capacity of arch structure in plastic greenhouse on snow load working condition

Yu Yonghua; Wang Jianping; Ying Yibin

Volume 23 Issue 3

Mar. 2007

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Abstract

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2007 > 23(3): 158-162.

Yu Yonghua, Wang Jianping, Ying Yibin. Nonlinear finite element analysis of the bearing capacity of arch structure in plastic greenhouse on snow load working condition[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2007, 23(3): 158-162.

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Nonlinear finite element analysis of the bearing capacity of arch structure in plastic greenhouse on snow load working condition

College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China

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Received Date: May 18, 2006
Revised Date: September 09, 2006
Published Date: March 30, 2007

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Abstract

Abstract

The method of ultimate bearing capacity calculation of the arch structure of plastic greenhouse was presented in the research. The nonlinear finite element analysis theory was applied in the method development. Based on the consistent mode imperfection method, the initial defect model was determined by the least order mode of eigenvalue buckling, and the maximum displacement value. Double nonlinear factor was considered in the structure analysis. To calculate the ultimate bearing capacity, the equilibrium path of the load and displacement using arc-length method was traced. The ultimate bearing capacity of the multi-span plastic greenhouse under snow load in the eastern-China was calculated by the method. The calculated result was close to the production-marked bearing capacity , which showed that the method was suitable.
- plastic greenhouse,
- ultimate bearing capacity,
- finite element analysis,
- initial defect

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