摘要
使用非线性有限元程序系统ADINA ,对南水北调中线穿黄连续刚构方案的预应力U型薄壳渡槽进行了结构分析 .给出了静力分析结果和动力特性分析结果 .结果表明 ,与简支方案相比 ,连续刚构方案结构减小了变形、应力和钢筋用量 ,最大压应力和最大拉应力均满足规范中的强度设计要求 ,最大位移也满足刚度要求 .
A prestressed U-type continuous aqueduct is analyzed by means of the famous nonlinear F.E. program ADINA. Static analysis results are listed and frequencies and modeshapes are described. The results show that the minus bending moment make the stresses decreased in continuous aqueduct, and that the maximum compressive stress, the maximum tensile stress and the maximum displacement are all under the design value. Finally, conclusions and suggestions are given to the original design.
出处
《华北水利水电学院学报》
2001年第1期1-4,18,共5页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
预应力
U型渡榴
有限元法
频率分析
振型
prestressed
U-type aqueduct
finite element method
frequency analysis
modeshape
