Ribbed superimposition prestress reinforced concrete precast slab

Abstract

The invention discloses a ribbed superimposition prestress reinforced concrete precast slab, which comprises a precast block (1), a hole (2), a post-cast concrete superimposition layer (3) and reinforcing steel bars (4). A production method of the precast slab comprises the following steps that: the precast block (1) with longitudinal ribs is well pre-cast; the precast blocks (1) are orderly arranged, the reinforcing steel bars (4) are arranged inside a soleplate (7) and a longitudinal ribbed groove (8) or a longitudinal ribbed hole (9) of the precast block, prestress is applied onto the longitudinal reinforcing steel bars of the soleplate, and concrete is poured inside the soleplate (7) and the longitudinal ribbed groove (8) or the longitudinal ribbed hole (9); and after the post-cast concrete reaches a certain strength, the prestrained reinforcing steel bars are released, so the ribbed superimposition prestress reinforced concrete precast slab is formed. Since the precast block (1) with a notch (6) is previously prepared, a hole (2) is formed by the notch (6) during the superimposition process, and the precast block (1) can be cast or squeezed inside a fixed mould, the production procedure is simple.

Description

Technical field: [0001] The invention relates to the field of building construction, in particular to a ribbed superimposed prestressed reinforced concrete prefabricated slab. Background technique: [0002] The reinforced concrete assembled floor slab currently used can withstand two-way loads, has good integrity, does not require on-site formwork, and is low in cost, easy to hoist and transport. The reinforced concrete prefabricated component of the assembled floor usually uses a ribbed reinforced concrete prefabricated component slab (03227765.2). There are holes on both sides under the longitudinal rib of this ribbed reinforced concrete prefabricated component. The holes on both sides are connected to multiple reinforced concrete prefabricated component slabs, so that the steel bars are arranged in a criss-cross pattern, and the grooves formed by the prefabricated components are filled with concrete to form an assembled floor slab. The floor slab has the advantages of low...

AI Technical Summary

Problems solved by technology

However, the fabrication of this ribbed prefabricated component slab is very cumbersome, mainly because the pouring of the longitudinal rib with holes on both sides needs to install side forms on both sides of the longitudinal rib, and the holes on both sides also need to be equipped with molds, and then place the bottom plate reinforcement, longitudinal Rib reinforcement and pouring concrete, the process is complex, and it is difficult to remove the formwork of the orifice module, which increases the construction time and difficulty of construction, and the construction efficiency is low

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