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- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.15 No.1
- 발행연도
- 2003.1
- 수록면
- 53 - 70 (18page)
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The motivation of this paper is to introduce the modern technology of large-scale coolingtower design. Thereby the innovative design concept for the worlds largest cooling tower with a height of200 m is briefly presented (Harte & Krzig 2002, Bush et al. 2002). The new concept was considerednot only for safety, but also for preservation of the durability of the structure, because cracking damage inlarge cooling towers in general cause extremely high cost of maintenance and repair. The paperdemonstrates numerically the damage process in large cooling towers (Krtzig et al. 2001), and describessome 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 dynamicalbehaviour of the structure, as mirrored in its natural frequencies and the corresponding mode shapes, arepresented and discussed. Finally, the example shows that such damage processes develop progressivelyover the life-time of the shell structure.
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