Experimental Research on Arch Transfer Floor Structure

On the basis of theoretical analysis,properties of arch transfer floor subjected to vertical and horizontal cyclic loading were experimentally researched.The vertical loading experiment indicates that the arch transfer floor structure can possess relatively good ductility,and avoid brittle destruction.Moreover,not only may the prestressing force in bottom chord enhance the capability of crack resistance of this chord,but also may offset the horizontal thrust of diagonal web member to substructure of the transfer floor,so as to improve on the mechanics performance of the transfer floor.The horizontal cyclic loading experiment shows that the arch transfer floor structure can own full hysteresis loop of load-displacement,great energy dissipation and good ductility.Besides,the result shows that the plastic hinges may develop in the superstructure of the arch transfer floor easily,which may be weak position of the structure.As a result,the arch transfer floor structure designed according to the design principle in this paper,could be satisfied with the aseismic requirements.