基于ANSYS的拱坝有限元仿真分析及其在病险水库除险加固中的应用 工程硕士论文.docVIP

基于ANSYS的拱坝有限元仿真分析及其在病险水库除险加固中的应用 重庆大学学位论文 　重庆大学学院二O年月Finite element simulation analysis of arch dam based on ANSYS and its application in the reinforcement of dangerous reservoir A Thesis Submitted to Chongqing University in Partial Fulfillment of the Requirement for the Degree of Master of Engineering By Li Jun Supervised by Yao Gang Pluralistic Supervised by Gao Qiang Specialty：hydro-structure College of Architecture and Civil Engineering of Chongqing University ， Chongqing， China April 2013 摘 要 关键词：，，，， ABSTRACT The modeling and nonlinear FEM simulation analysis for arch dam designs is an important topic，especially for those arch dams to be built in locations of complex topographic and geological conditions. In this Paper，brief summary and contrast for the analytical methods of arch dam were conducted， the visualization and parameterization of FEM，and its implementation were investigated，and the system based on ANSYS，for the simulation FEM analysis of arch dam was developed. And 3-D nonlinear FEM simulation analysis was then carried out for ShengLi reservoir arch dam，which is located in Youyang County，Chongqing Province of China. The visualization theory and parameterization technique for FEM， and secondary developing technique for ANSYS were studied. The parameterization principle for FEM modeling of arch dam and the implementation technique were introduced. By fully using of the secondary developing techniques provided in ANSYS，such as UIDL，APDL etc， a FEM simulation analysis system of arch dam based on ANSYS was develoed， by means of whih arch dams on complex foundation can be modeled and analyzed conveniently. Basic theory of nonlinear FEM analysis and its realization in ANSYS were studied， three kinds of nonlinear structural behaviors，the basiequations of elastic and plastic problem and strength criterion commonly used were discussed. And the basic process of FEM simulation analysis in ANSYS was introduced in detail. Finally，ShengLi reservoir double