摘要
编制了有限元及有限元-无限元耦合计算程序,利用其分析了广西源口拱坝在有限域及无限域地基下的动力特性与动力响应,并与常规刚性地基下坝体的动力特性、动力响应进行比较,得出结论:1.弹性地基下拱坝自振频率减小、动位移最大值增大;2.耦合分析法具有较高的精度和显著的经济性,是工程应用中值得推广的一种分析方法.
In this paper, programs of finite element and finite infinite element coupling method are worked out, and they are applied for analyzing dynamic properties and earthquake response of foundation dam system, located in Yuankou, Guangxi, in the condition of finite and infinite space. Compared with the result of dam in rigid foundation, the conclusions are got: 1.the frequencies of dam in elastic foundation is little than that of dam in rigid foundation, meanwhile the maximum displacement of dam is larger;2.this analytical method has high accuracy and significant economy. Also it is a method worth popularizing in engineering.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
2003年第3期249-253,共5页
Journal of Guangxi University（Natural Science Edition）
基金
教育部骨干教师资助项目
关键词
地基基础—坝体动力相互作用
动力特性
有限元
无限元
耦合法
dynamic interaction of foundation dam system
dynamic properties
finite element
infinite element
coupling analysis method
