桥面铺装层层间剪应变分析  

The shear strain analysis of Bridge deck pavement interlayer

作　　者：范杰林[1] 李志农 郭力 

机构地区：[1]新疆农业大学机械交通学院,新疆乌鲁木齐830052 [2]新疆交通厅,新疆乌鲁木齐830000 [3]中国公路工程咨询总公司,北京100081

出　　处：《公路工程》2010年第5期26-29,66,共5页Highway Engineering

基　　金：西部交通建设科技项目(200631800077)

摘　　要：为了分析桥面铺装层上下面层层间及桥面板与铺装层之间的剪应变变化规律,基于在试验路不同位置埋设传感器,分别采集在试验车超载-13%、超载0%、超载20%、超载40%等工况,与试验车以30 km/h、40 km/h、50 km/h等速度匀速行驶、紧急制动等工况组合的剪应变。并分析不同荷载、不同位置、匀速行驶及制动等工况的剪应变变化规律。结果表明超载和紧急制动工况下,各项剪应变显著增长,并且剪应变与荷载呈良好的线性相关关系。In order to analyze the following bridge deck pavement layer and between layers of pavement between the bridge deck and the shear strain variation of the test article is based on road sensors buried at different locations,were collected in the test vehicle overloa-13%、overload 0%,overload 20%,overload 40% of such overloading conditions,and testing vehicles in order to 30 km/h,40 km/h,50 km/h uniform speed such as driving,emergency braking conditions such as combination of shear strain.And the analysis of different loads,different locations,driving and braking and so uniform conditions of shear strain variation.The results showed that overload and emergency brake operating conditions,a significant increase of the shear strain and shear strain and load showed good linear relationship.

关 键 词：道路工程 桥面铺装层 剪应变 动载 

分 类 号：U443.33[建筑科学—桥梁与隧道工程]