A railway bridge deck system which is composed of a horizontal truss and an orthotropic steel bridge deck

The invention relates to the field of railway bridges, in particular to a railway bridge deck system composed of a horizontal truss and an orthotropic steel bridge deck. Comprises a steel truss beam,a bridge deck for bearing line load, a cross beam arranged under the bridge deck and spaced apart along the bridge deck longitudinally, and a longitudinal beam arranged under the bridge deck and spaced apart along the bridge deck transversely, the two ends of the cross beam are respectively connected with the steel truss beam. Through the structural design of the present application, such that thetransfer of force is from the longitudinal beam to the cross beam, The beam is then transferred to the steel truss, ensure that the deck is integral with the main truss, under the condition of ensuring the whole rigidity of the bridge deck system, The width of the bridge deck can be set according to the actual structure of the bridge deck, which has the beneficial effect that the width of the bridge deck is far smaller th