摘要
本文将框—剪体系中的各榀抗侧力结构均简化成刚度参数沿高度分阶变化的竖向悬臂构件,导出了体系的空间刚度矩阵和质量矩阵,并建立求解体系平扭耦连振动的特征值方程。本方法的概念简单,易于编制程序,计算结果也较精确。
The lateral structures of frame-shear wall system are simplified into bending beams and shear beams which stiffness can vary in different stages along the building height. The three-dimension stiffness matrix and mass matrix are deduced, and the characteristic equation is established to calculate the tortuous free vibration of the asymmetric system. The method is simple and has satisfactory precision, and it is easily fulfilled in micro-computers.
关键词
非对称
框架
剪力墙
分阶连续
stage continuity, stiffness matrix, dynamic characteritics, lateral structure, mass
