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本文建立了对风荷载、自重和温度荷载组合作用下的双曲冷却塔结构进行可靠度分析的半随机过程模型,研究了考虑土壤-结构共同作用、塔底用连续弹性支承和离散支柱所造成的可靠度评估差异.运用等效静态的方法,考虑湍流动态风荷载响应.将动态随机过程模型转化为静态随机变量模型.TR荷载组合规则被用来考虑各荷载效应之间的关系.以广东茂名90米双曲冷却塔作为算例,数值结果表明不考虑共同作用的设计是保守的.
In this paper, a semi-random process model for the reliability analysis of the hyperbolic cooling tower structure under the combination of wind load, self-weight and temperature load was established. The soil-structure interaction was considered and the continuous elastic support and discrete pillars were used for the bottom of the tower. The reliability of the assessment of differences. The use of an equivalent static method, considering the turbulence dynamic wind load response. The dynamic stochastic process model was transformed into a static random variable model. TR load combination rules were used to consider the relationship between the various load effects. The Maoming 90-meter hyperbolic cooling tower was used as an example. The numerical results show that the design without considering the co-action is conservative.