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Wind pressure and buckling of grouped steel tanks

  • Portela, Genock (General Engineering Department, University of Puerto Rico) ;
  • Godoy, Luis A. (Civil Infrastructure Research Center, Department of Civil Engineering and Surveying, University of Puerto Rico)
  • 투고 : 2005.12.29
  • 심사 : 2006.11.22
  • 발행 : 2007.02.25

초록

Wind tunnel experiments on small scale groups of tanks are reported in the paper, with the aim of evaluating the pressure patterns due to group effects. A real tank configuration is studied in detail because one tank buckled during a hurricane category 3. Three configurations are studied in a wind tunnel, two with several tanks and different wind directions, and a third one with just one blocking tank. The pressures were measured in the cylindrical part and in the roof of the tank, in order to obtain pressure coefficients. Next, computational buckling analyses were carried out for the three configurations to evaluate the buckling pressure of the target structure. Finally, imperfection-sensitivity was investigated for one of the configurations, and moderate sensitivity was found, with reductions in the maximum load of the order of 25%. The results help to explain the buckling of the tank for the levels of wind experienced during the hurricane.

키워드

참고문헌

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  6. Portela, G. and Godoy, L. A. (2005a), "Wind pressures and buckling of cylindrical steel tanks: Tanks with dome roofs", J. Constr. Steel Res., 61, 786-807. https://doi.org/10.1016/j.jcsr.2004.11.002
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  8. Portela, G. and Godoy, L. A. (2005c), "Shielding effects and buckling of steel tanks in tandem arrays under wind pressures", Wind and Struct., 8(5), 325-342. https://doi.org/10.12989/was.2005.8.5.325
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