Study on a new fiber wall element model of RC short-limb shear wall

Fiber wall element model which considers cumulative damage effect of material is set up by introducing cumulative damage index to the fiber wall element hysteretic models of reinforcement and concrete. A numerical simulation of the cyclic loading test of the short-limb shear wall is conducted by using the fiber wall element model, alongside a corresponding pseudo-static test. Results demonstrate that energy dissipation capacity and ductility of T-shaped short-limb shear wall are good. All the specimens failed under a flexural-dominant behavior, and the damage was mainly concentrated in the boundary element of the web. Special attention should be paid to the design of the web boundary. The model exhibits a high level of numerical stability and computational efficiency for all specimens investigated. Comparisons of experimental and analytical results demonstrate that the proposed fiber wall element model with good accuracy, providing an important reference to the seismic performance assessment of RC shear wall.