摘要
对肯斯瓦特水电站进水塔进行了三维有限元计算分析,计算了结构在完建期、正常运行期以及检修期静力工况下的应力分布情况。因其地处8度地震区,故综合采用显式与隐式动力学方法计算考察了进水塔的动力响应。结果表明:静力工况中发现检修门关闭时,门槽附近的应力较大,应采取相应措施减小应力;瞬态分析发现塔顶部加速度比地面加速度要大,且应力值有较大幅度提高,可能导致建筑物损伤;谱分析的物理意义直观明确,且计算量较小,适合一般工程设计时使用。
Abstract： This article had carried on the three-dimensional finite element analysis for the intake tower of Kenswat water conservancy engineering. The stress distribution during the periods of completion, construction and normal operation was calculated. Besides, the explicit and implicit meth- ods of dynamic calculation were applied to investigate the dynamic response of intake tower. The results show that in the static condition, stress near the gate slot is larger in the condition that access door is closed, the corresponding measures should be taken to reduce stress; explicit analysis found that the top acceleration is bigger than the ground acceleration, and the stress value is greatly raised, which may cause damage to buildings ; Spectral analysis has a clear physical meaning with intuitive, and the calculation amount is much smaRer, which is suitable for use in general engi- neering design.
出处
《人民黄河》
CAS
北大核心
2014年第2期129-131,共3页
Yellow River
关键词
有限元
静力学
显式动力学
进水塔
肯斯瓦特水电站
finite element method
static analysis
explicit dynamic analysis
intake tower
Kenswat Hydropower Station
