| 随机徐变应力影响下重力坝时变可靠度初探 |
| |
| 引用本文： | 刘宁,刘光廷.随机徐变应力影响下重力坝时变可靠度初探[J].水利学报,1999(5):49-56. |
| |
| 作者姓名： | 刘宁 刘光廷 |
| |
| 作者单位： | 1. 河海大学土木工程学院,南京,210098
2. 清华大学水利水电工程系,北京,100084 |
| |
| 摘 要： | 由于重力坝的随机温度场以及随机徐变应力场均为非平稳随机过程，由此所涉及的结构可靠度是非平稳向量随机过程非线性组合的时变可靠度．本文计入重力坝徐变应力场和混凝土强度随机性的影响，将时变可靠度的数值解法与随机有限元法相结合，模拟施工过程，对一典型重力坝的时变可靠度进行了计算，得出了一些有益的结论．
|
| 关 键 词： | 混凝土结构，时变可靠度，随机有限元法 |
Time-dependent reliability of concrete gravity dam affected by random thermal creep stress |
| |
| Liu Ning,Liu Guangting.Time-dependent reliability of concrete gravity dam affected by random thermal creep stress[J].Journal of Hydraulic Engineering,1999(5):49-56. |
| |
| Authors: | Liu Ning Liu Guangting |
| |
| Affiliation: | Liu Ning (Hohai University) Liu Guangting (Tsinghua University) |
| |
| Abstract: | In this paper, the random properties of both the thermal creep stress and strength parameters of concrete are taken into account in the calculation of time dependent reliability. Stochastic Finite Element Method is applied in Conneetion with numerical method for calculating time dependent reliability. By simulating the construction procedure, time dependent reliability of a typical concrete gravity dam is calculated. |
| |
| Keywords: | time dependent reliability stochastic finite element method gravity dam concrete |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水利学报》浏览原始摘要信息 |
