Structural Engineering and Mechanics

  • 제15권1호
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  • Pages.53-70
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  • 2003
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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New design concept and damage assessment of large-scale cooling towers

  • Noh, Sam-Young (Institute for Structural Statics and Dynamics RWTH Aachen) ;
  • Meskouris, Konstantin (Institute for Structural Statics and Dynamics RWTH Aachen) ;
  • Harte, Reinhard (Institute for Statics and Dynamics, Bergische Universitat Wuppertal) ;
  • Kratzig, Wilfried B. (Institute for Statics and Dynamics, Ruhr-Universitat Bochum)
  • 투고 : 2002.10.04
  • 심사 : 2002.12.18
  • 발행 : 2003.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

The motivation of this paper is to introduce the modern technology of large-scale cooling tower design. Thereby the innovative design concept for the world's largest cooling tower with a height of 200 m is briefly presented (Harte & Kr$\ddot{a}$tzig 2002, Bush et al. 2002). The new concept was considered not only for safety, but also for preservation of the durability of the structure, because cracking damage in large cooling towers in general cause extremely high cost of maintenance and repair. The paper demonstrates numerically the damage process in large cooling towers (Kr$\ddot{a}$tzig et al. 2001), and describes some basics of the numerical finite element approach for damage propagation modelling of shell structure. A prototype is analysed to trace the progressive damage process, whereby the changes in the dynamical behaviour of the structure, as mirrored in its natural frequencies and the corresponding mode shapes, are presented and discussed. Finally, the example shows that such damage processes develop progressively over the life-time of the shell structure.

키워드

참고문헌

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피인용 문헌

  1. Ultimate behavior of reinforced concrete cooling tower: Evaluation and comparison of design guidelines vol.22, pp.2, 2006, https://doi.org/10.12989/sem.2006.22.2.223
  2. Structural stability of concrete wind turbines and solar chimney towers exposed to dynamic wind action vol.95, pp.9-11, 2007, https://doi.org/10.1016/j.jweia.2007.01.028
  3. Evaluation of Structural Performance of Natural Draught Cooling Tower according to Shell Geometry using Wind Damage Analysis - Part I : One-shell Geometry vol.16, pp.3, 2016, https://doi.org/10.9712/KASS.2016.16.3.067
  4. Evaluation of Shell Geometry of the Natural Draught Cooling Tower using Linear Numerical Analysis vol.12, pp.3, 2012, https://doi.org/10.9712/KASS.2012.12.3.097
  5. A Global Damage Indicator Based on the Modal Parameters in the FE-Simulation of the Structures vol.250-253, pp.1662-8985, 2011, https://doi.org/10.4028/www.scientific.net/AMR.250-253.1105
  6. Structural Behaviour Evaluation of Natural Draught Cooling Towers under the Consideration of Shell-Geometric Parameters vol.284-287, pp.1662-7482, 2013, https://doi.org/10.4028/www.scientific.net/AMM.284-287.1396
  7. Evaluation of Structural Performance of Natural Draught Cooling Tower According to Shell Geometry Using Wind Damage Analysis – Part II : Two-Shell Geometry vol.17, pp.1, 2017, https://doi.org/10.9712/KASS.2017.17.1.049