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针对现役井架结构的使用特点，研究了其可靠性评定的随机性荷载分析以及荷载效应的统计分析，提出了构件的模糊动态可靠度评定方法和井架结构体系的可靠度评定实用方法，通过工程实例说明了文中理论与方法的可行性，为现役井架结构的可靠性评定及科学管理提供了理论基础。
Based on the characteristics of the derrick structure used in operation, the random load analysis and statistical analysis of load effects are studied. The fuzzy dynamic reliability evaluation method of components and the reliability evaluation practical method of derrick structure system are proposed. It explains the feasibility of the theory and method in the paper and provides a theoretical basis for the reliability evaluation and scientific management of the existing derrick structure.