Fabricated concrete two-way dense rib floor structure and construction method thereof

Abstract

The invention discloses a fabricated concrete two-way dense rib floor structure and a construction method thereof. The fabricated concrete two-way dense rib floor structure comprises a bottom plate, main keel beams, secondary keel beams, a supporting frame, mold shells and a top plate. The secondary keel beams and the main keel beams form a group of rectangular cells; a positioning assembly is arranged on the bottom plate; the positioning assembly comprises a pre-embedded screw rod and positioning cones; the positioning cones are in threaded connection with the embedded screw rod; a supporting plate is arranged on the outer side wall of the positioning cone; the supporting frame is arranged in the rectangular cells; supporting sheets are correspondingly connected to the four internal corners of the supporting frame; through holes are formed in the supporting sheets; the positioning cones are arranged in the through holes in a penetrating mode; the mold shells are mounted in the group of rectangular cells; the upper end of the positioning assembly is inserted into the mold shell; first connecting ribs are arranged in the middles of the main keel beams at intervals; second connecting ribs are arranged in the middles of the secondary keel beams at intervals; the top plate is poured on the tops of the main keel beams the tops of the secondary keel beams and the tops of the mold shell; and a longitudinal hidden rib beam and a transverse hidden rib beam are arranged in the top plate. The technical problems that a traditional dense rib floor system structure is large in mass, inconvenient to mount and carry and low in construction efficiency are solved.

Description

technical field [0001] The invention belongs to the technical field of building engineering construction, in particular to a prefabricated concrete two-way dense-rib floor structure and a construction method thereof. Background technique [0002] The ribbed floor refers to the one-way or two-way ribbed floor with a rib spacing ≦ 1.5 m. The two-way densely ribbed floor has better mechanical performance due to the two-way load bearing effect. The construction project is a part of the construction project. The existing ribbed floor has good integrity in places where the load and span are large, such as large-span floors and roof panels used in various buildings, or the soil-covered roof of an underground garage. The load is large, which affects the stability of the floor. At the same time, it is inconvenient to install and carry, which affects the efficiency of on-site construction. Contents of the invention [0003] The purpose of the present invention is to provide a prefa...

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Problems solved by technology

[0003] The purpose of this invention is to provide a prefabricated concrete two-way ribbed floor structure and its construction method, to solve the problem that the traditional densely ribbed floor structure has a large mass and the floor The load is large, which affects the stability of the floor. At the same time, it is inconvenient to install and carry, and it is a technical problem that affects the efficiency of on-site construction.

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