确定结构部分质量有效质量系数的方法

Method for determining the effective mass coefficient of partial mass of structure

提出了结构部分质量有效质量系数的概念,给出了空间刚性楼板模型部分质量有效质量系数的计算公式,为在结构抗震设计中判断计算振型数是否考虑足够提供了科学的方法和充分的依据,解决了长期困扰工程界的如何估计高振型影响是否考虑足够的问题。同时还给出了一个算例,演示空间刚性楼板模型部分质量有效质量系数的计算过程。

The concept of the effective mass coefficient of partial mass of structure was presented and the formula to calculate the efficient mass coefficient of partial mass of the spatial modal with rigid slab was given,providing a scientific method and an ample basis to estimate whether or not the calculated vibration mode numbers were enough and solving the problem that how to estimate whether or not the effect of high order mode was enough in the engineering circles. A simple example was also presented to demonstrate the process to calculate the efficient mass coefficient of partial mass of the spatial modal with rigid slab.