考虑混凝土收缩、徐变的有限元算法  

FEM FOR CREEP AND SHRINKAGE OF CONCRETE STRUCTURES

作　　者：廖力[1] 张宁 

机构地区：[1]北京理工大学应用力学系,北京100081 [2]北京市市政工程设计研究总院

出　　处：《兵工学报》2000年第z1期32-34,共3页Acta Armamentarii

摘　　要：将混凝土结构在外载荷和混凝土收缩、徐变作用下的变形 ,分别按线弹性和混凝土龄期调整的有效模量法分两次计算。本算法可有效地模拟混凝土结构在施工过程中 ,由于施工各阶段混凝土龄期差异造成的收缩、徐变的差异。In this paper, it is proposed that the effects of creep, shrinkage and load on concrete structures can be computed by the methods of linear elasticity and age adjusted effective modulus separately In this way the difference of creep and shrinkage due to the difference in concrete ages during construction can be simulated effectively The computed results show that the processes given in the paper is reasonable for concrete construction

关 键 词：混凝土结构 有效模量 有限元法 

分 类 号：O241.82[理学—计算数学]