The Finite Element Analysis of Temperature Effects on Large Flat-Bottom Squat Steel Silos

Abstract:

Steel silos lack of systematic theoretical research. Based on a large floor-ash steel silo, for example, in view of a large number of documents based on the relevant specifications, the temperature load of steel silo effect is analyzed. The results show that: for those steel silos which are constructed in a larger temperature difference between regions, warehouse wall stress induced by the temperature load can not be ignored; at the bottom of the storehouse, the hoop stress, vertical stress load vary linearly with temperature, therefore, when the temperature difference is large, the temperature stress at the bottom of the warehouse is much larger than the warehouse wall stress induced by the storing load; the temperature stress at the bottom of the steel silos changes in shape of a parabola according to the silo diameter and the warehouse wall thickness. Therefore, in a certain range, reducing the diameter of the silo but increasing the thickness of the steel silo warehouse is harmful to the steel cylinder.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1285-1289
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1285
• Online since: December 2014
• Authors: Heng Yun Si*, Zhen Hua Liu, Hong Wei Guo, Tao Wang
• Keywords: Finite Element Analysis (FEA), Seasonal Temperature Difference, Steel Silos, Strength

References

[1] Teng J G, Zhao Y. Stability design rules for transition ring-beams in steel silos. Spatial Structures, 2000, 6 (4): 11-20 (In Chinese).

[2] Li Bingwei. Shell structural engineering analysis method. Beijing: China communication Press, 1977 (In Chinese).

[3] Yunming Yang. Numerical analysis of silo behavior using non-coaxial models. Chemical Engineering Science，(2011).

[4] Cui Yuanrui, Wang Zhouhui. Silo structure of temperature stress . Special Structures, 2012, 29 (1): 1-5 (In Chinese).

[5] Julia M. Moran, Andres Juan, Rita Robles, Pedro J. Aguado. Effects of Environmental Temperature Changes on Steel Silos. Biosystems Engineering, (2006).

DOI: 10.1016/j.biosystemseng.2006.02.017