摘要
本文应用有限元的数学模型,计算了三峡溢流坝——库水——基础系统的动力特性,并用反应谱理论和时程分析计算了坝体动力反应。分析结果表明:该坝型有利于提高抗震能力,地震对坝的稳定和应力状况均能满足设防要求。最后还提出了进一步改善坝的动态特性的建议。
In this paper, the dynamic Property of the system of spillway dam-reservoir-foundation has been computed by finite elements(2-dimenslon and 3-dimension), and earthquake response of the spillway dam has been computed by both the response spectrum and time-history analysis. The results of analyses show that this type of spillway dam is favourable for improving it's earthquake resistant behavior, and both stability and stress state of the spillway dam can satisfy the requirements of national defence. Finally, the suggestion for improving dynamic behavior of the spillway dam has also been proposed.
出处
《长江科学院院报》
CSCD
北大核心
1991年第2期22-28,共7页
Journal of Changjiang River Scientific Research Institute
关键词
溢流坝
动力反应
抗震
稳定性
dynamic behavior
earthquake response
stability against earthquake
fluid-structure interaction
