多层结构模型在龙滩碾压混凝土坝应力分析中的应用  

APPLICATION OF MULTILAMINATE MODEL TO STRESS ANALYSIS OF THE LONGTAN ROLLER-COMPACTED CONCRETE DAM

作　　者：庞作会[1] 

机构地区：[1]北方交通大学土木建筑工程学院,北京100044

出　　处：《工程力学》2002年第2期147-153,共7页Engineering Mechanics

基　　金：北方交通大学论文基金资助(PD-081)

摘　　要：本文提出一种设想棗采用多层结构模型分析碾压混凝土坝的应力特点。在详细推导多层结构模型弹塑性公式的基础上,制定反映该模型特点的非线性计算方法;针对龙滩大坝的情况,提出碾压混凝土层面法向刚度的确定方法,进而对龙滩大坝的应力进行计算分析。结果表明,多层结构模型在高碾压混凝土坝的应力分析中具有一定的应用前景。In this paper, the multilaminate material model is used to study a roller-compacted concrete dam. The elasto-plasticity formulas of the multilaminate material model are derived in detail and the nonlinear computational procedures are presented. An approach is suggested to evaluate the normal stiffness of the interface of the Longtan roller-compacted concrete. The finite element analysis of the Longtan roller-compacted concrete dam indicates that the multilaminate material model is promising in the stress analysis of high RCC dams.

关 键 词：多层结构模型 弹塑性 碾压 混凝土 龙滩大坝 应力分析 非线性计算法 筑坝技术 

分 类 号：TV541.1[水利工程—水利水电工程]