楼盖振动的有限元分析和振动传递规律  

Finite Element Analysis for Floor Vibration and Vibration Transfers Law

作　　者：张松[1] 张同亿[1] 石诚[1] 

机构地区：[1]中国中元国际工程公司,北京100089

出　　处：《桂林理工大学学报》2012年第3期342-345,共4页Journal of Guilin University of Technology

摘　　要：按工业建筑中常用的楼面结构参数设计了楼盖的振动模型,并按楼面结构特点确定了激励作用点。分析了梁板单元划分大小、激励频率分辨率对有限元计算结果的影响,确定了相应的计算方法。最终得到了激励分别作用在横向主梁、纵向主梁和次梁跨中时的楼面传递系数,计算出激励作用在非梁中时传递系数的修正系数为1.44。Based on industrial and civil common building parameters, floor models are designed and the excita- tion points determined based on the floor structural features. The influence of calculation results is analyzed for the slab and beam element size, excitation frequency resolution. The floor vibration transfer coefficients are given when the excitation points are on the midspan of horizontal, vertical and sub beams. The correction fac- tors are calculated and given when the excitation points are not on the midspan of beams.

关 键 词：楼面振动 滞变阻尼 粘滞阻尼 振动传递 

分 类 号：TU375.3[建筑科学—结构工程]