| 水电站坝下游面管结构型式比较分 |
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| 引用本文： | 杨丽娜,伍鹤皋.水电站坝下游面管结构型式比较分[J].中国农村水利水电,2007,0(10):108-111. |
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| 作者姓名： | 杨丽娜 伍鹤皋 |
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| 作者单位： | 水资源与水电工程科学国家重点实验室,武汉大学,武汉,430072 |
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| 摘 要： | 某水电站拟采用坝下游面管的布置形式，为了达到安全、经济和施工方便的目的，对坝下游面明钢管和坝下游面钢衬钢筋混凝土管两种结构型式进行了比较分析。在对坝下游面明管结构研究时，采用三维线弹性有限元方法对明管在正常运行工况下的钢衬应力进行了分析；在对坝下游面钢衬钢筋混凝土管结构研究时，先用解析法对钢衬钢筋混凝土压力管道进行初步设计，确定其钢衬厚度和钢筋配置，再对其进行整体三维非线性有限元分析，重点研究钢衬钢筋混凝土管在正常运行工况下钢衬和钢筋的应力状态以及管周混凝土的开裂特征。最后通过对两种管道型式的比较，为坝下游面管的结构选型提供依据。
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| 关 键 词： | 坝下游面管 明管 钢衬钢筋混凝土管 非线性有限元方法 |
| 文章编号： | 1007-2284（2007）10-0108-04 |
| 修稿时间： | 2006-12-13 |
Conparison Analysis of Structural Style of Penstock Laid on Downstream Surface of Dam of a Hydropower Station |
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| YANG Li-na,WU He-gao.Conparison Analysis of Structural Style of Penstock Laid on Downstream Surface of Dam of a Hydropower Station[J].China Rural Water and Hydropower,2007,0(10):108-111. |
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| Authors: | YANG Li-na WU He-gao |
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| Institution: | State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,430072 |
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| Abstract: | A hydropower station plans to use Penstock Laid on Downstream Surface of Dam,in order to achieve the security,the construction convenience and the economical goal,This article carries on the comparison to the exposed penstock and steel lined reinforced concrete penstock.The exposed penstock was analyzed by 3-D linear elastic finite element method.During the analysis of the steel lined reinforced concrete penstock,first the penstock was designed to determine the thickness of steel lining and reinforcement scheme using analytic method.Then the integral model of steel lined reinforced concrete penstock was analyzed by nonlinear 3-D finite element method,focusing on stress of steel lining and reinforcing steel bars,cracking status of concrete.Through the comparison of two results,it can be used to select the structural style. |
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| Keywords: | penstock Laid on Downstream Surface of Dam exposed penstock steel lined reinforced concrete penstock nonlinear finite element method |
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