Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Evaluation of Structural Performance of Natural Draught Cooling Tower According to Shell Geometry Using Wind Damage Analysis - Part II : Two-Shell Geometry

풍하중에 의한 손상해석을 이용한 기하형상에 따른 자연 습식 냉각탑의 구조성능 평가 - Part II : Two-Shell 기하형상

  • Lee, Sang-Yun (Dept. of Architectural System Eng., Hanyang University) ;
  • Noh, Sam-Young (Dept. of Architectural Eng., Hanyang University)
  • 이상윤 (한양대학교 건축시스템공학과) ;
  • 노삼영 (한양대학교 건축학부)
  • Received : 2016.06.17
  • Accepted : 2016.08.03
  • Published : 2017.03.15
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Abstract

The result of the previous work leads to the idea that the inner area of the hyperbolic shell generator should be minimized for the cooling tower with higher first natural frequency. In this study the inner area of the hyperbolic shell generator was graphically established under varying height of the throat and angle of the base lintel. From the graph, several shell geometries were selected and analysed in the aspect of the natural frequency. Three representative towers reinforced differently due to different first natural frequencies were analysed non-linearly and evaluated using a damage indicator based on the change of natural frequencies. The results demonstrated that the damage behaviour of the tower reinforced higher due to a lower first natural frequency was not necessarily advantageous than the others.

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References

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