连续配筋砼路面小板段荷载应力简化公式研究  

Simplified Formula Research on Load Stress of Continuously Reinforced Concrete Pavement

作　　者：张德海 徐丰[2] 白桃[2] 叶茂[2] 

机构地区：[1]中国市政工程中南设计研究总院有限公司,湖北武汉430010 [2]武汉工程大学交通研究中心,湖北武汉430073

出　　处：《公路工程》2015年第2期150-154,共5页Highway Engineering

基　　金：同济大学道路与交通工程教育部重点实验室开放基金资助(K201308);武汉工程大学科学研究基金(K201408)

摘　　要：连续配筋水泥混凝土路面(CRCP)在铺筑完成一段时间后,会在路面纵向上断裂成许多单独的板块。借助正交设计和多元统计回归方法,在有限元计算的基础上,提出了单块小板段的荷载应力简化计算公式。极差分析结果表明,CRCP荷载应力影响因素的重要程度从大到小依次为:板厚、裂缝宽度、地基反应模量、混凝土模量。单因素单变量的回归分析,确定了荷载应力和各影响因素之间的大致关系。通过对各变量的假设组合分析,以单变量多因素的多元统计回归方法获得了一定精度并能通过假设检验的拟合公式。Continuously Reinforced Concrete Pavement（ CRCP） is bound to break into individual plates along the longitudinal direction after construction. Based on finite element method calculation,the paper takes the process of simplified formula extraction of load stress of CRCP separate slab using orthogonal design and multivariate statistical regression methods. Range analysis shows that the plate thickness plays is the most factor for CRCP load stress,which is followed by crack width and foundational response modulus,with the concrete modulus to be the last. Single-factor and single-variable regression analysis determine the general relationship between the load stress and the various individual factors. Then,assumption and combination analysis of all variables,as well as single-variable and multi-factor multivariate statistical regression methods obtain a fitting formula. The formula could pass the hypothesis testing with certain precision.

关 键 词：连续配筋水泥混凝土路面 正交设计 荷载应力 多元统计 简化公式 

分 类 号：U416.216.2[交通运输工程—道路与铁道工程]