【摘要】 针对威远江水电站泄洪洞进水塔水下高耸且独立布置的特点,研究了水下进水塔动水压力的模拟方法,建立了进水塔结构-水体-地基三维动力有限元抗震分析模型,分析了进水塔结构的动力特性。采用时程分析法研究了进水塔结构在7度地震作用下的动力反应,给出了进水塔的抗震最不利位置及其减震措施,为同类工程设计提供了参考依据。更多还原

【Abstract】 A simulation method of hydrodynamic pressure of underwater intake tower was studied and a 3D dynamic finite element earthquake-resistance analysis model of structure-water-foundation was developed to analyze the structural dynamic characteristic of intake tower,according to the underwater high-rise independent layout feature of the intake tower of spillway tunnel of Weiyuanjiang Hydropower Station.The time history analysis method was used to calculate the dynamic response of intake tower structure under the action of the earthquake with intensity of 7 degree.Then this paper gives the most unfavorable position of intake tower during earthquake occurrence period and the corresponding shock absorption measures,which provides the reference basis for the design of similar project.更多还原