摘要
论述了我国混凝土大坝抗震安全性评价的工程背景和指导思想,着重于简介高拱坝体系特点的线性和非线性地震响应分析方法．讨论了混凝土大坝随机地震响应及其抗震可靠度评估方法．此外,还基于大坝混凝土全级配试件动力试验成果,通过三维细观力学分析,探讨了其动态破坏过程和机理及应用CT技术的验证。
The engineering background and guiding principals of seismic safety evaluation of concrete large dams in China are presented in this paper. Particularly, the special features and the linear and non-linear analytical methods for seismic responses of high arch dam system are described. The methods of the random seismic response and reliability assessment of concrete large dams are also discussed. Finally, based on the results of dynamic tests of dam concrete with specimen of fully-graded aggregates, the study on the dynamic failure process and mechanism of dam concrete using three-dimensional meso-mechanics analysis checked by computerized X-ray topography technique is briefly reported.
出处
《力学与实践》
CSCD
北大核心
2006年第2期1-8,共8页
Mechanics in Engineering
基金
国家自然科学基金重点项目(90510017)资助
关键词
力学问题
抗震分析
随机振动响应
混凝土大坝
大坝混凝土动态特性
mechanics problems, seismic analysis, random seismic responses, concrete large dam, dynamic behaviors of dam concrete
