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Structural Engineering and Mechanics Volume 5, Number 5, September 1997 , pages 541-552 DOI: https://doi.org/10.12989/sem.1997.5.5.541 |
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Nonlinear behavior of R/C cooling tower shells |
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Hara T, Kato S, Ohya M
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| Abstract | ||
| In this paper the ultimate strength of the R/C cooling towers, which have initial imperfection and pre-cracked elements, is analyzed. The initial geometric imperfections arise from the unavoidable inaccuracies under the construction and the pre-cracks are assumed to be produced by the temperature stress gradients or cyclic loading under wind pressure and/or earthquake load. Both effects are strongly influenced on the strength of the R/C cooling tower shell structures. The reinforcing ratio is also the important factor to evaluate the ultimate strength of the R/C cooling tower shells. However we could not analyze these structures experimentally because of their large, analyses are the powerful schemes to evaluate the safety and reliability of these structures. The analyzed model is Port Gibson cooling tower shell. In the numerical analysis the geometric and material nonlinearities are taken into account. | ||
| Key Words | ||
| R/C shell, finite element analysis, ultimate strength, geometric imperfection, cooling tower | ||
| Address | ||
| Hara T, TOKUYAMA COLL TECHNOL,DEPT CIVIL ENGN & ARCHITECTURE,KUME TAKAJO 3538,TOKUYAMA,YAMAGUCHI 745,JAPAN TOYOHASHI UNIV TECHNOL,DEPT ARCHITECTURE & CIVIL ENGN,TOYOHASHI,AICHI 441,JAPAN MATSUE NATL COLL TECHNOL,DEPT CIVIL ENGN,MATSUE,SHIMANE 690,JAPAN | ||