THE INTERNAL FORCE ANALYSIS AND SIMPLIFIED CALCULATION METHOD FOR CONCRETE FRAMES-FIBER PLASTERBOARD

The paper investigates the loading performance and the ultimate capacity of concrete frames with fiber plasterboard. In the analysis, the plasterboard and the frames consisting of concrete core and ring beam are assumed to be connected by isotropic chain-poles. Then, the relations between load and displacement are determined corresponding to different Height-Width ratios. Moreover, the damage procedures are developed based on deformation compatibility, the calculation method and internal force formulas are derived at different damage stages. The calculated results agree well with the experimental results.