摘要
以前人加筋土挡墙动力试验为依据,将Newmark“滑块模型”引入加筋土挡墙的抗震分析中,用极限分析上限法推导出加筋土挡墙屈服加速度的解析表达式,并利用可变误差多面体法进行求解。参数敏感性分析表明,挡墙几何、填土及加筋的强度参数是影响加筋土挡墙屈服加速度的重要因素。所得结果具有良好的规律性,是位移控制抗震设计的基础。
Based on the experimental data of reinforced earth retaining walls, the Newmark sliding-block model is used to account for the dynamic behaviour of the reinforced earth retaining walls. The formulation of yield acceleration of the reinforced earth retaining walls is given by the upper bound method of limit analysis. Sensitive analysis shows that the yield acceleration of the reinforced earth retaining walls is affected by wall geometry as well as strength of soil and reinforcements significantly. The obtained conclusions are of good reqularity and can be the foundation of the displacement-controlled design method of the reinforced earth retaining walls.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第5期728-731,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
加筋土
挡墙
抗震分析
屈服加速度
reinforced earth retaining walls,earthquake analysis,yield acceleration
