One-way multi-ribbed composite floor system

Abstract

The invention discloses a one-way multi-ribbed composite floor system. The floor system comprises a prefabricated multi-ribbed plate, a prefabricated composite beam and a post-cast reinforced concrete layer, the prefabricated multi-ribbed plate comprises a reinforced concrete flat plate, longitudinal ribs, transverse ribs and a steel bar truss, the prefabricated composite beam is composed of main ribs, stirrups and a concrete beam body, and the prefabricated multi-ribbed plate is placed on the upper surface of the concrete beam body of the prefabricated composite beam; and the reinforced concrete flat plate is inwards placed on the side face of the concrete beam body of the prefabricated composite beam by a certain distance, the post-cast reinforced concrete layer is composed of a concrete body, beam upper portion reinforcing steel bars, plate upper portion reinforcing steel bars and anti-crack ribs, and the anti-crack ribs are arranged at the upper portions of splicing seams in the direction perpendicular to the splicing seams. The post-cast reinforced concrete layer is arranged at the upper portion of the prefabricated multi-ribbed plate and the upper portion of the prefabricated composite beam. The floor system is convenient to construct, the hoisting efficiency of the prefabricated multi-ribbed plate with a shelving corbel is high, the shear resistance of the end parts is good, the deformation coordination performance among the ribs can be improved by combining the longitudinal ribs and the transverse partition ribs which are crossed transversely and longitudinally, and the overload capacity under the local load effect is improved.

Description

technical field [0001] The invention relates to concrete prefabricated components, in particular to a one-way dense rib composite floor. Background technique [0002] Floor slabs in traditional building structures are usually poured by formwork. There are many formwork procedures and the quality is difficult to control. If a prefabricated building is used, the slab span is generally not greater than 3 meters. Otherwise, support is required, and the floor is poor in economy and Prefabricated beams usually use flower basket beams, which are complicated in manufacturing process and poor in general performance of molds. In order to reduce the cost of the floor, the inventor has disclosed a patent for using prefabricated dense ribs without support as the floor slab and grooved beams to form a composite floor, which is suitable for building structures with large loads and large spans, but the supporting prefabricated composite beams need to be specially prefabricated. The groove ...

AI Technical Summary

Problems solved by technology

[0002] Floor slabs in traditional building structures are usually poured by formwork. There are many formwork procedures and the quality is difficult to control. If a prefabricated building is used, the slab span is generally not greater than 3 meters. Otherwise, support is required, and the floor is poor in economy and Prefabricated beams usually use flower basket beams, the manufacturing process of flower basket beams is complicated, and the general performance of molds is poor

In order to reduce the cost of the floor, the inventor has disclosed a patent for using prefabricated dense ribs without support as the floor slab and grooved beams to form a composite floor, which is suitable for building structures with large loads and large spans, but the supporting prefabricated composite beams need to be specially prefabricated. The groove gap matching the rib section size and rib spacing of the prefabricated densely ribbed slab is reserved. The manufacturing accuracy of the groove beam is high, and the construction is relatively complicated, and it cannot be used in combination with the steel beam construction.

There is no report on a one-way force-transmitting composite floor with low hoisting difficulty, wide application range, large floor bearing capacity, and good shear resistance of beam superimposed surfaces.

Images