Vol. 9, No. 4, pp. 369-382 (2013)
RESEARCH ON A NEW DOUBLE-WALL STEEL INSULATION SILO WITH
MULTIPLE BOLTED JOINTS: PART I, STRUCTURE SYSTEM
Lingfeng Yin 1,*, Gan Tang 1,2, Xiaoming Guo 1 and Haibin Lai 1
1 School of Civil Engineering, Southeast University, SiPaiLou 2, Nanjing, China, 210096
2 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, YuDao Street 29, Nanjing, China, 210016
*(Corresponding author: Email: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. )
Received: 21 September 2011; Revised: 17 January 2012; Accepted: 27 January 2012
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ABSTRACT
The objective of this paper is to study a new double-wall steel insulation silo with multiple bolted joints for grain storage, which is designed to improve the insulation effect and mechanical behavior of the traditional silo structure. The silo employs the planar thin-walled steel plate as the internal wall, and the continuous ladder-shaped profiled plate as the external wall. The cavity between the internal and external walls is filled with insulation material. The silo utilizes specifically designed bolt connections to connect the internal and external walls. This paper carefully studied the structural behavior of the silo and the results indicate that the horizontal pressure from the grains is resisted by the internal wall under tension, and that the vertical friction force is mainly carried by both the external and internal walls. The stability of the internal wall is effectively provided by the external wall. The selection of connection model between the internal and external walls has a significant impact on the structural performance of the silo. To make the optimal selection, further verification and experimental studies are needed.
KEYWORDS
Steel insulation silo; double-wall; multiple bolted joints; structural behavior; connection model between the internal and external walls
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