Author(s):John F. Abel and Phillip L. Gould
Seems on pages(s):135-160
Keywords:buckling; strengthened concrete; structural evaluation. cooling shells towers; hyperbolic .- (structural kinds); parabolic shells; stability;
The objectives of this evaluation of the buckling of cooling tower shells are to survey accessible experimental results, to debate various analytical and numerical approaches, and to guage present observe for buckling predictions in design. The paper focuses on the problem of stability of giant, concrete hyperboloids topic to wind loadings. There exists only a small body of experimental results related to this problem. No single strategy is universally accepted or used, and various views of structural modeling are mentioned. For instance, some designers and research-ers advocate an area buckling criterion as opposed to a worldwide stability remedy. Another differences embrace: bifurcation predictions as opposed to limit-point analyses, reduced shell theories to acquire lower bounds somewhat than full shell theories, and axisymmetric simplifications as an alternative of full nonaxisymmetric methods. It appears that bifurcation calculations with well-verified strategies can provide an appropriate estimate of wind-loaded hyperboloid buckling for routine design functions. The prediction of buckling for the design of cooling tower shells might be improved by extra experimental proof for the verification and comparability of prediction strategies.