NONLINEAR PERFORMANCE SIMULATION WITH SMALL-SCALE MODELS IN EARTHQUAKE SIMULATION TEST OF RC STRUCTURES

摘要

In earthquake simulation test used small-scale RC structure model, the material behavior between prototype and model is hard to resemble well so that model cannot simulate correctly the nonlinear performance of prototype. On the basis of the dynamic similitude of mechanical behavior between common concrete and micro-concrete which derive from mechanical behavior tests, simplified equivalent dynamic similitude relations, which is applicable to the nonlinear performance simulation used small-scale RC structures models in the earthquake similitude tests, are setting up. By the numerical simulation of earthquake simulation tests and the deviation analyses, the dynamic simulation experimental method has been verified. In additional, for small-scaled RC model, to consider the similitude harmony between concrete used in model and reinforcement used in model, by adjusting reinforcement, and stirrup, the effective section height (h<,0>) and hoop space etc., and simple experiments were carried out to verify this method, thus, the small-scaled RC model can simulate correctly the nonlinear performance of prototype should be implemented.