| 溪洛渡拱坝应力应变计算及施工期应力统计模型 |
| |
| 引用本文： | 周宜红,武先伟,李金河,黄耀英,鲍婷. 溪洛渡拱坝应力应变计算及施工期应力统计模型[J]. 水电能源科学, 2013, 31(5): 63-66 |
| |
| 作者姓名： | 周宜红 武先伟 李金河 黄耀英 鲍婷 |
| |
| 作者单位： | 三峡大学 水利与环境学院， 湖北 宜昌 443002;三峡大学 水利与环境学院， 湖北 宜昌 443002;中国长江三峡集团公司， 湖北 宜昌 443001;三峡大学 水利与环境学院， 湖北 宜昌 443002;三峡大学 水利与环境学院， 湖北 宜昌 443002 |
| |
| 基金项目： | 国家自然科学基金资助项目（51079079）；三峡大学科研创新基金资助项目（2012CX002） |
| |
| 摘 要： | 针对溪洛渡拱坝埋设的差阻式应变计组的组合特点，推导了应变计组不同埋设方式的单轴应变计算公式，采用变形法将单轴应变转换为单轴应力，并计算出主应力，由此建立应力统计模型，时效分量采用3个指数函数累加来表示。实例应用结果表明，该统计模型拟合精度较高，可用于解决溪洛渡拱坝应力应变资料的预处理问题。
|
| 关 键 词： | 溪洛渡拱坝； 应变计组； 单轴应变； 统计模型； 时效分量 |
Calculation of Stress and Strain for Xiluodu Arch Dam and Stress Statistical Model in Construction Period |
| |
| ZHOU Yihong,WU Xianwei,LI Jinhe,HUANG Yaoying and BAO Ting. Calculation of Stress and Strain for Xiluodu Arch Dam and Stress Statistical Model in Construction Period[J]. International Journal Hydroelectric Energy, 2013, 31(5): 63-66 |
| |
| Authors: | ZHOU Yihong WU Xianwei LI Jinhe HUANG Yaoying BAO Ting |
| |
| Affiliation: | College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China;College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China;China Three Gorges Corporation, Yichang 443001, China;College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China;College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China |
| |
| Abstract: | For the combination characteristics of differential strain gauges arrays embedded in Xiluodu arch dam, this paper deduces uniaxial strain calculation formula of strain gauge arrays under different embedded mode. And then, the uniaxial strain is transformed into single axial stress with deformation method and the principal stress is calculated. Finally, the stress statistical model is established. At the same time, the ageing component is represented with three cumulative exponential functions. Application results show that the statistical model has higher fitting precision, which can be used to solve the preprocessing problem of stress strain data for Xiluodu arch dam. |
| |
| Keywords: | Xiluodu arch dam strain gauge arrays axial strain statistical model ageing component |
|
|
