NONLINEAR DYNAMIC ANALYSIS OF STRUCTURES WITH VISCOUS DAMPERS
Based on the story model of spatial member, the supplemental damping matrix, dynamic balance equation and relative energy balance equation of structures with viscous dampers are derived. Nonlinear dynamic analysis of structures with viscous dampers is added into the computer program HBTA (highrise building time-history analysis). Examples are provided to validate the dynamic analysis method and observe the seismic mitigation effect of viscous dampers. The inner forces and deformation of structural members and viscous dampers can be given by HBTA. Efforts are made to conduct dynamic analysis including both displacement-dependent nonlinearity and velocity-dependent nonlinearity.