基于随机有限元的拱坝坝肩稳定可靠度分析  

Analysis on the reliability of the arch dam abutment stability based on stochastic finite element

作　　者：方建瑞[1] 苏燕[2] 

机构地区：[1]同济大学土木工程学院 [2]福州大学土木建筑学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2006年第4期598-603,共6页Journal of Fuzhou University(Natural Science Edition)

摘　　要：以有限元和可靠度理论为基础,提出了应用于拱坝坝肩抗滑稳定分析的随机有限元基本思路.通过与可靠度理论相结合,考虑变量的随机特性,建立荷载效应与基本随机变量之间的关系.在随机有限元的基础上进行拱坝坝肩抗滑稳定的可靠度分析,计算出相应的可靠指标.对一实际工程进行计算和分析,验证随机有限元方法在拱坝坝肩抗滑稳定分析中的应用.Based on the theories of finite element and reliability, the basic idea about application of the stochastic finite element method used to analyze the abutment stability against sliding of the arch dam is presented in this paper. Then combined with reliability computation, the stochastic finite element method is used to establish the relationship between the load effect and basic stochastic variable dealing with statistical features of variables. Based on the stochastic finite element method, the reliability of the arch dam abutment stability against sliding is analyzed, and the corresponding reliability index is calculated. Finally, the application of the arch dam abutment stability against sliding analysis with the way of common definite solution and stochastic finite element method is tested by one practical example analyzed and calculated.

关 键 词：随机有限元 拱坝 坝肩稳定 可靠度分析 

分 类 号：TV314[水利工程—水工结构工程]