两河口水电站进水塔结构分析
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摘要
考虑复杂地基及塔内外水体的影响,采用三维有限元法分析了两河口水电站进水塔的静动力强度与刚度,并校核了地震工况下进水塔的整体抗滑、抗倾覆与抗浮性能。同时针对该进水塔的尺寸特点,修正了规范给出的塔外地震动水附加质量计算公式。结果表明,两河口水电站进水塔的结构设计能满足相关规范要求。
Taken complex foundation and water surrounding the structure into account,static and dynamic stiffness and strength analysis for intake tower of Lianghekou Hydropower Station are performed by using three-dimensional FEM.And the whole sliding,overturning and floating stability are checked under the earthquake conditions.According to the size of intake tower,the calculation formula of additional water mass outside the tower given by the specification is modified.The results show that the structural design of intake tower meets the requirements of correlated specification.
Taken complex foundation and water surrounding the structure into account,static and dynamic stiffness and strength analysis for intake tower of Lianghekou Hydropower Station are performed by using three-dimensional FEM.And the whole sliding,overturning and floating stability are checked under the earthquake conditions.According to the size of intake tower,the calculation formula of additional water mass outside the tower given by the specification is modified.The results show that the structural design of intake tower meets the requirements of correlated specification.
引文
[1]陈厚群.进水塔的抗震设计[J].水利水电勘测设计标准化,1998(1):53-65.
[2]电力工业部中南勘测设计研究院,电力工业部北京勘测设计研究院,西北勘测设计研究院,等.水工建筑物荷载设计规范(DL5077-1997)[S].北京:中国电力出版社,1997.
[3]中国水利水电科学研究院.水工建筑物抗震设计规范(DL5073-2000)[S].北京:中国电力出版社,2001.
[4]中国水电顾问集团西北勘测设计研究院.水电站进水口设计规范(DL/T5398-2007)[S].北京:中国电力出版社,2007.
[2]电力工业部中南勘测设计研究院,电力工业部北京勘测设计研究院,西北勘测设计研究院,等.水工建筑物荷载设计规范(DL5077-1997)[S].北京:中国电力出版社,1997.
[3]中国水利水电科学研究院.水工建筑物抗震设计规范(DL5073-2000)[S].北京:中国电力出版社,2001.
[4]中国水电顾问集团西北勘测设计研究院.水电站进水口设计规范(DL/T5398-2007)[S].北京:中国电力出版社,2007.
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