公路悬臂挡土墙抗震设计计算分析  

Earthquake-resistance Design Calculation and Analysis for Lightweight Retaining Wall of Highway

作　　者：付春晓[1] 雷俊卿[1] 

机构地区：[1]北京交通大学土木建筑工程学院

出　　处：《公路交通科技》2006年第2期61-63,78,共4页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金资助项目(50178004);交通部公路工程抗震规范修订资助项目

摘　　要：现行公路工程抗震规范(JTJ004-89)挡土墙的抗震验算,已不能满足公路工程建设需要,挡土墙结构的抗震设计计算分析是有待深入研究的课题。考虑土体-结构动力计算,建立计算模型,用波动有限元模拟方法,对公路悬臂挡土墙进行了抗震计算分析。得出结论:在水平地震力作用下,计算出了公路悬臂挡土墙的动力放大系数数值以及沿高度分布的规律,得到了最大地震加速度的变化曲线。为公路悬臂挡土墙的抗震设计提供了有益的理论参考。The algorithm of retaining structure in the current Earthquake-resistance Specification of Highway Engineering （JTJ004-89） has been out of date and cannot meet the requirement of the highway construction development. It is a problem needs to be studied in- depth. In this paper earth-structure dynamic calculation is considered. The calculation model is established by wave finite member method. The earthquake-resistance analysis and calculation are done for highway lightweight retaining wall. The conclusions are obtained, under level earthquake load, the retaining wall lateral distribution ceeitlcient of earthquake load along height is calculated, to get the variation curve of the max earthquake acceleration. Researeh achievements can be used for the earthquake-resistance design for national highway lightweight retaining wall.

关 键 词：悬臂挡土墙 地震作用 分布系数 抗震设计 计算分析 

分 类 号：U417.11[交通运输工程—道路与铁道工程]