Integral prefabricated composite beam

The utility model provides an integral prefabricated composite beam, including sandwich layer and surface course, the sandwich layer includes steel mesh frame and inside polystyrene foam board core, steel mesh frame include polystyrene foam board core both sides steel wire mesh sheet, and the slant run through the abdomen silk of polystyrene foam board core, abdomen silk both ends are fixed respectively on corresponding steel wire mesh sheet, leave the clearance between steel wire mesh sheet and polystyrene foam board core surface, the surface course condenses integratively with steel mesh frame. The utility model discloses steel mesh frame is as the three dimensions skeleton in the creation, and it is whole that the polystyrene foam board core of filling with the centre and the surface course in the outside form a rigidity, and structural strength is high, and the durability is good, possesses excellent fire behavior and shock resistance, can reach with the same life -span of building. Owing to take batch pr