Experimental study on steel-concrete composite transfer frame

In order to study the mechanical behavior of composite transfer frame assembled by composite transfer beam and concrete filled rectangular steel tube columns, experiments with vertical loads and low cyclic reversed horizontal loads were performed on the model structure. For the transfer beam under vertical loads, the stiffness and the anti-crack capability were analyzed. The failure process, the load-displacement hysteretic behaviors, the displacement ductility and the energy dissipation capability were studied in low cyclic reversed horizontal loading tests. The experimental results indicate that, under vertical loads the transfer beam possesses high stiffness and desirable anti-crack capability and satisfies the service limit state. Under horizontal loading the transfer frame has desirable ductility and large interstorey drift capacity. The hysteresis loops are symmetric and plump-shapes, and the energy dissipation shows very good performance.