Seismic Analisis Estimate Of Infilled Frame Structures

Infilled Frame Structures are used much common nowadays, the obvious advantage of which have already been accepted by most people. It is from the reinforced concrete tall building structural design and construction procedures (JGJ 3-91)No.4.4.2-4.4.4 that we can find that the internal forces of framework can be computed with layering for the vertical loads and with "D"Value method for the wind load and the level earthquake load. In the stage of the construction drawing design, the preciser computation method to compute bar set of a framework under elasticity is the matrix displacement method, which tells us that we don't consider the cooperation of the infilled wall and the framework generally in the building structural design, In fact for either the vertical load or the level load, the beam-column of the framework and infilled wall can work together.Infilled wall of RC frames are common in structures. Structures will be led stiffer in elastic stage as a result of infill wall existing.The stifhess of infll wall is taken into account.The stifness of infll wall decerases when the structures are in elastic.Time history analysis and nonlinear static analysis methods are used during inelastic stage.In this process the efect of infill wall and its stifness descend are calculated and discussed.Infilled wall work to the RC frame structure in the earthquake,for which,the damage of the structure is different from the RC frame. And the damage of itself can threaten people's life.By the analysis,we consider that the influence of the infilled wall to the frame structure should be considered well.