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Wind and Structures
  Volume 11, Number 2, March 2008 , pages 121-135
DOI: https://doi.org/10.12989/was.2008.11.2.121
 


A comparative study of along and cross-wind responses of a tall chimney with and without flexibility of soil
Piotr Gorski and Tadeusz Chmielewski

 
Abstract
    The paper is concerned with a comparative study of both the along and cross-wind responses of a tall industrial chimney with and without flexibility of soil. The along-wind response has been estimated by means of approaches presented in three Standards: the Polish, the ISO and the Eurocode and by random vibration approach which is outlined below. The cross-wind response has been estimated by means of the three models developed by Vickery and Basu, Ruscheweyh and Flaga and methods presented in Standards: the Polish, the ISO and the Eurocode (Approach 1 and 2). Computer programmes were developed to obtain estimates of responses of a six-flue, 250 m-tall chimney. The analytical results computed according to the methods presented in different standards and random vibration approaches have been compared. Some unexpected conclusions have been observed.
 
Key Words
    numerical analysis; tall chimney; along and cross-wind responses; flexibility of soil.
 
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