Study On Behavior And Simplified Model Of The Plasterboard Reinforced With In-filled RC Columns

As a new form construction component, the plasterboard reinforced with in-filledRC columns has the advantages of good structural performance, fast construction, lowcost and no pollution. Because of the complex material composition, the mechanicalcharacteristics of composite wall is not well understood, and there is no reliabilitysimplified model for the analysis of actual structure, so problems on engineeringapplication and mechanical analysis need be solved at present.First, analysis of many groups of solid finite element models of composite wallunder the vertical loading and horizontal loading was made with finite elementmethod. Through the analysis of failure characteristics and crack development process,which proved the mechanical characteristics of the composite wall is similar to slittedshear wall.Following, based on the analysis, slitted shear wall simplified model wasprovided. Analysis models of composite wall and slitted shear wall were set up andthe ultimate load-carrying capacity of different wall panels were investigated.Compared with composite wall, the slitted shear wall model has same stiffness inelastic stage, and similar stress performance in the plastic stage, which affirms thereliability of the simplified model.Finally, the finite element model of an11-layer residential building used the newstructure system was developed with slitted shear wall model. Pushover analysis wascarried out. The results of analysis indicated that the building has good seismicperformance and satisfied related design specifications.