基于模糊评判理论的既有钢筋混凝土桁架结构可靠性研究

摘要

基于模糊评判理论和混凝土结构可靠性鉴定标准,综合考虑影响钢筋混凝土结构可靠性的因素,运用子项目评定等级的隶属函数概念,建立了适合钢筋混凝土桁架结构的可靠性评判模型.利用此模型对某洗煤厂皮带走廊桁架进行了结构可靠性模糊评判,评判结果与现场情况达到了较高的吻合度.%Based on fuzzy evaluation theory and reliability identification standard of concrete structure,this paper synthetically considers factors which influences the reliability of reinforced concrete structure and builds reliability evaluation model adapted to reinforced concrete truss structure.By using this model,it carries out fuzzy evaluation of truss structure＇s reliability at belt passageway in one coal preparation plant and the evaluation result reaches fairly high coincidence degree to field condition.