Vol. 9, No. 4, pp. 383-394 (2013)
RESEARCH ON A NEW DOUBLE-WALL STEEL INSULATION SILO WITH
MULTIPLE BOLTED JOINTS: PART II, EXPERIMENTAL VERIFICATION
Gan Tang 1,2, Lingfeng Yin 2,*, Xiaoming Guo 2 and Haibin Lai 2
1 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, YuDao Street 29, Nanjing, China, 210016
2 School of Civil Engineering, Southeast University, SiPaiLou 2, Nanjing, China, 210096
*(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: 26 September 2011; Revised: 21 January 2012; Accepted: 28 January 2012
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ABSTRACT
An experimental model of a double-wall steel insulation silo with multiple bolted joints is designed. The experiment results and the finite element results are compared and analyzed, and the following conclusions are reached. The cooperation between the internal and external walls is outstanding. Among the six proposed models, A3, A4 and A5 present almost the same results, which satisfyingly coincide with the experiment results. The horizontal pressure is mainly resisted by the internal wall under tension during the whole loading process. Before the force P reaches Pu-in, the vertical friction force is carried by both the internal and external walls. When the force P reaches Pu-in, the internal wall at the area between the first external ring beam and the supports shows a sudden elastic-plastic buckling. After that, the external wall bears more and more vertical friction force, then it also shows an elastic-plastic buckling at the same area. Finally, the walls at this area are destroyed and the model loses the bearing capability.
KEYWORDS
Steel insulation silo; double-wall; experiment; cooperation between the internal and external walls; elastic-plastic buckling
REFERENCES
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