摘要
水泥混凝土路面在设计、施工、管理等过程中存在许多的不确定因素,为了更好地考虑这些不确定性,新版水泥混凝土路面设计规范,以可靠度概念取代了传统的安全系数,从而使路面设计更科学。以影响水泥混凝土路面可靠度的主要结构参数为随机变量,采用疲劳概率分析模型,分析了随机变量的变异性和概率分布,编程计算某公路水泥混凝土路面的可靠度指标。
A lot of uncertain factors exist in the course of design, construction, and management of cement concrete pavement. In order to consider the uncertainty, traditional safety coefficient is substituted by reliability in new specifications of Cement Concrete Pavement Design for Highway, which makes the concrete pavement design more rationalization. The variability and distribution of the random variable are analyzed. Regarding the main structure parameters influencing the reliability of cement concrete pavement as the random variable, the reliability of a road is calculated by programs, using the fatigue probability analysis model.
出处
《公路》
北大核心
2006年第5期120-123,共4页
Highway
基金
湖南省自然科学基金项目(04JJ3085)
教育部高等学校博士点专项基金项目(20030533043)
关键词
水泥混凝土路面
可靠度
结构参数
随机变量
cement concrete pavement
reliability
structure parameter
random variable
