Manufacture method of superimposed and prestressed reinforced concrete precast panel with ribs

Abstract

The invention discloses a method for manufacturing a superimposed prestressed reinforced concrete precast panel with ribs, comprising the following steps: during the construction, firstly precasting the precast blocks with vertical ribs on a mold, then putting the precast blocks in parallel or spacedly, reserving two ends of the mold for pouring cast-in-place concrete, placing the reinforcing steel bars on bottom panel vertical grooves or vertical rib grooves or vertical rib through holes of the put precast blocks, binding the transverse reinforcing steel bars on the bottom panels and stretching the vertical reinforcing steel bars on the bottom panels, applying prestressed force and then casting the concrete in the mold, the two ends of the precast panel, the bottom panel vertical grooves, the vertical rib grooves or the vertical rib through hole; loosening the prestressed reinforcing steel bars after the post-cast concrete achieves certain strength to form the superimposed and prestressed reinforced concrete precast panel with the ribs of which the two ends are poured by the cast-in-place concrete. The precast blocks and the cast-in-place concrete are integrated, and the cohesiveness between the precast blocks and the cast-in-place concrete is good, so that the precast blocks can be poured or formed by extrusion in a mould in batch so that the precast panel has simple making procedure.

Description

Technical field: [0001] The invention relates to the field of building construction, in particular to a method for manufacturing 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 sla...

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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