The application discloses a bottom mould floor support plate construction technology suitable for steel-concrete composite beam cast-in-situ
bridge deck plate construction and belongs to the field of cast-in-situ concrete component form construction, which can solve the problems of difficult installation of the bottom mould of the steel-concrete composite beam cast-in-situ
bridge deck plate, large waste of building materials, cost increase and slow construction period. According to the size of the floor support plate, the application performs line laying at a reinforcing position of the top plate of the steel beam, performs installation and connection, straightens, flattens, connects and fixes the arranged floor support plate. The connection between the floor support plates is reinforced by adding fillet
welding. The two sides of the steel-concrete composite beam are each provided with a 70cm
cantilever arm, and the concrete thickness is 20cm. The
cantilever arm part of the side beam is constructed by using a hanging form method, a steel
cantilever beam is arranged on the top of the steel beam to hang up the
steel bar truss floor support plate bottom mould. After the floor support plate is paved, the steel bars are bound, and the
bridge deck plate is poured. The
steel bar truss floor support plate satisfies various loads such as structure and construction, can avoid construction procedures such as formwork erection, formwork removal,
support system erection and removal and the like, and improves construction operation efficiency.