Comparative Study on Steel Frame Models through Seismic Response Analysis

Two steel frames with different interlaminar stiffness are considered as the mass-system model.The peak value of the velocity and acceleration of the seismic wave are investigated separately.The time-history analysis is employed to calculate the seismic response of two models.Particular analysis are carried out by comparison.Results indicate that the evaluation method for the intensity of seismic waves by using the velocity peak value is more convincing than the acceleration peak value.And the damage extent of the floor will greatly connect with the relative interlaminar stiffness.For the structure with well-proportioned stiffness,the damage will mostly converge in the lower floor.For the structure with relative uneven stiffness,the outcome will be different.The Qiu Shanhong viewpoint of which the input energy depends only on the mass of the structure and the elementary cycle is verified.