RESEARCH ON RC FRAME-SHEAR WALL STRUCTURES WITH PARTIAL COLUMNS SLIDING AT UPPER ENDS

In view of the anti-collapse design of RC frame-shear wall structures, some studies on the RC frame-shear wall structures with partial columns sliding at upper ends are presented in this paper, including design of the frame beams, assessment of the lower limit value of friction coefficient, and energy dissipation analysis of the friction supports. Simulation results show that: (a) by taking the hardening of tensile reinforcements into account and by adjusting the design procedures, the frame beams may be designed more economically; (b) the assessment method for the low limit value of friction coefficient is related to the current design code and easier for engineering application; and (c) a larger additional damping ratio can be provided by the friction supports under moderate earthquake, leading to considerable energy-dissipated effect.