Effect of soil-structure interaction on the reliability of hyperbolic cooling towers

A semi-stochastic process model of reliability was established for hyperbol ic cooling towers subjected to combined loadings of wind force, self-weight , temperature loading. Effect of the soil-structure interaction on reliabil ity was evaluated. By involving the gust factor, an equivalent static schem e was employed to convert the dynamic model to static model. The TR combina tion rule was used to consider relations between load responses. An analysi s example was made on the 90M cooling tower of Maoming, Guangdong of China. Numerical results show that the design not including interaction turns to be conservative.