Analysis of Buckling Bearing Capacity for Super-Large Cooling Towers Subjected to Random Wind Loading
XU Ya-zhou and BAI Guo-liang
DOI:10.11835/j.issn.1674-4764.2011.04.010
Received November 08, 2010,Revised , Accepted , Available online July 01, 2015
Volume ,2011,Pages 60-64
- Abstract
Based on the formal solutions of the buckling eigen equation,the probability density evolution equation for the random buckling eigenvalue is derived considering the random wind loading.Taking the averaged wind speed at 10m height and roughness length as the random factors,the random buckling bearing capacity for a super-high cooling tower is then analyzed.Furthermore,both the mean and the standard deviations of the capacity are calculated.It is indicated that there exhibits a general shape for the probability density function of the random buckling capacity.And the mean of the random buckling bearing capacity is close to that one computed by the averaged parameter.However,the variation of the random buckling bearing capacity is between the corresponding values of averaged wind speed at 10m height and roughness length.