| 重力坝采用预应力技术的断裂力学研究 |
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| 引用本文： | 赵中极,宋海印.重力坝采用预应力技术的断裂力学研究[J].华北水利水电学院学报,2005,26(1):19-22. |
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| 作者姓名： | 赵中极 宋海印 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450011;华北水利水电学院,河南,郑州,450011 |
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| 摘 要： | 以断裂力学理论为基础,运用有限单元法对混凝土重力坝采用预应力技术进行了研究,揭示出预应力可有效抑制坝踵裂缝的扩展,大大地提高了重力坝的安全度;并且指出预应力的最优数值和位置,对于在重力坝上推广预应力技术有一定的参考价值.
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| 关 键 词： | 预应力 混凝土重力坝 断裂力学 应力强度因子 |
| 文章编号： | 1002-5634(2005)01-0019-04 |
| 修稿时间： | 2004年6月10日 |
The Study of Prestress - reinforced Concrete Gravity Dam with Fracture Mechanics |
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| ZHAO Zhong-ji,SONG Hai-yin.The Study of Prestress - reinforced Concrete Gravity Dam with Fracture Mechanics[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2005,26(1):19-22. |
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| Authors: | ZHAO Zhong-ji SONG Hai-yin |
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| Abstract: | By analysing destroyed causation of the Concrete Gravity Dam, on the basis of the fracture mechanics, the effect of the prestressed value and place to the dam heel stress intensity factor of the Concrete Gravity Dam by the finite element method is studied and the optimum measure is found for prestress to be loaded. There is some certain reference to the gravity dam applying prestressed technique. |
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| Keywords: | prestress concrete gravity dam fracture mechanics stress intensity factor |
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