The Analysis of Dynamic Characteristics for the Powerhouse Structure of the Riverbed-hydroelectric Station

摘要

The paper creates a three-dimensional finite element model with the Xihe Project on the Hanjiang River as a background.The space integrated finite element method is applied to analyze the dynamic characteristics of the spatial structure of the riverbed-hydroelectric station.The aim is to calculate and analyze the free vibration characteristics of the whole structure, the dynamic displacement and the dynamic stress under the two typical conditions.The calculation model is effective to consider the interaction of the upstream dam section, the main and auxiliary powerhouse and the downstream water retaining structure, as well as the foundation.The results obtained will be a valuable reference for optimizing the dynamic characteristics of the powerhouse structure of riverbed-hydroelectric station and improving the engineering design.