引黄入晋工程泵站厂房机墩柱整体动力计算研究

Calculation on Dynamic of Machine Pier Column of Pumping Plant House,the YRDP

本文对万家寨引黄入晋工程南干一级泵站厂房机墩柱结构进行动力计算研究。泵站电动机转速 6 0 0r/min ,机组支撑结构为板柱式。文中主要从结构的动力特性及动位移响应进行分析 ,并对结构进行加固优化。分析选用不同的动弹性模量对动力特性影响 ,不同的阻尼比对谐响应位移影响。计算研究表明 ,结构加固后的基频远离机组运行时的自激强迫力频率 2 0 %以上 ,结构外激强迫力的位移响应及短时的瞬态外激的位移响应满足容许最大位移响应。

This paper studies the calculation on the dynamic of the machine pier column structure of the first pumping plant house,the YRDP.The rotational speed of the motor in the pumping plant is 600 per minute,the support structure of the pumping unit is slab and column.In this paper,the dynamic feature of the structure and the response of the dynamic displacement are analysed,the structure is strengthened.The influence of different dynamic elasic modulus on the dynamic feature and the influence of different damping ratio on harmonic response displacement are also analysed.