【摘要】 根据峡城水电站厂房机墩的实际情况以及运用要求,建立了三维有限元计算分析模型。利用ANSYS结构分析软件,研究了机墩的动力特性,比较了数值分析模型不同截取边界对机墩谐响应分析成果的影响。分析表明该厂房机墩的谐响应位移在机墩内边缘最大,由内往外逐渐减小;该厂房机墩的谐响应位移在规范允许的范围内。当考虑主厂房上部结构和副厂房时,机墩的谐响应位移最大。更多还原

【Abstract】 According to the reality and application requirement of pier bases in the workshop of the Xiacheng Hydropower Plant,the paper sets up a 3-D finite element model,researches on the dynamic characteristics of pier base and,with the ANSYS software,compares the impacts of different intercepted boundaries of numerical value models to the harmonic analysis of pier bases.According to the analysis,the harmonic displacement of the pier base in the workshop decreases from the inner boundary to the outside boundary.It meets the criterion on harmonic displacement of pier base,which is the largest as the upper structure of the main powerhouse and the assistant powerhouse are considered.更多还原