DEFORMATION CAPACITY ANALYSIS OF FIBER CONCRETE SHEAR WALL CONSIDERING AXIAL-FLEXURE-SHEAR INTERACTION

To predict the seismic behavior of high performance fiber reinforced concrete shear walls under earthquake excitations, a simple approach is developed based on the modified compression field theory (MCFT) and the uniaxial shear-flexure model (USFM), considering the mechanisms of axial-flexure-shear interaction and high strain-hardening in tension behavior of fiber reinforced concrete. The proposed model was verified through a comparison with the deformation envelope of cyclic loading tests of 4 high performance fiber reinforced concrete shear walls, and the main factors influencing deformation capacity were discussed. The results show that the proposed load-deformation model can be used to predict deformation capacity for high performance fiber reinforced concrete shear walls subjected to monotonic static load.