【作者】 张子艳； 任旭华； 乐成军； 刘爱环；

【Author】 Zhang Ziyan~1,Ren Xuhua~1,Le Chengjun~(1,2),Liu Aihuan~1 (1.College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing Jiangsu 210098; 2.HydroChina Chengdou Engineering Corporation,Chengdu Sichuan 610072)

【机构】 河海大学水利水电工程学院； 中国水电顾问集团成都勘测设计研究院；

【摘要】 根据泸定水电站岸塔式进水塔的结构特点,建立了进水塔结构-水体-地基的三维动力有限元附加质量模型。分析了进水塔结构在施工完建期空库工况和正常蓄水位工况下分别与水平向、三向地震作用叠加的动力特性,确定了可能引起结构破坏的最不利位置。计算结果表明,水平向地震作用对结构应力应变影响较大,竖向地震作用的影响较小。更多还原

【Abstract】 According to the characteristics of Luding hydropower station intake tower,3D added mass model including structure、water and foundation was established.Two working conditions including empty reservoir and normal working conditions were analyzed.Then the results of the two working conditions were separately coupled with the result of horizontal seismic action and the result of earthquake action in three directions.Finally,the most unfavorable position which may cause structural damage was identified.The results illustrated that the horizontal seismic has more impact on the stress-stain of the structure,while the influence of the vertical seismic on the stress-stain is little.更多还原