多层工业厂房机器上楼竖向振动反应计算

本文根据多层多跨厂房实际的构造情况,选用合适的计算模型,用Lanczos方法作自由振动分析,用振型分解法作受迫振动分析．初步给出了计算多层厂房竖向振动反应的实用有效的程序．

Computing the Vertical Vibration Responses Caused by Machines on the Floor of Multi-Story Factory Buildings

Computational methods of floor vertical vibration of multistory buildings arediscussed. In the programs,finite element methods are used for analysing the isotropic slabs andmaster beams,slave beams,columns smicthe. Calculated the An hequencies and elastieigenmodes of multistory hary struture with "Lanczos method",calculared the floor vertical vibration displase values with mode superposition method.The result is accrate,the calculationvalues coincided with the real vibration state.