Production process of prestressed concrete laminated slab bottom plates

Abstract

The invention belongs to the technical field of building material processing and application, and particularly relates to a production process of prestressed concrete laminated slab bottom plates. The production process comprises the following effective steps of cleaning the surfaces of a mold table and a mold; spraying a release agent; laying and tensioning prestressed steel bars, and placing a steel bar framework and the mold; pre-embedding water tubes and electric wire tubes; casting concrete; carrying out rough smearing; carrying out galling; carrying out maintenance and placing a lifting appliance; breaking the prestressed steel bars; removing the mold; and obtaining finished products, transferring and stacking the finished products, and the like. According to the production process, an existing production process is improved, the lifting appliance is additionally arranged before the prestressed steel bars are broken, multi-point supporting of a plate body is formed, and then the problems of plate surface warping and cracking of the laminated slab bottom plates due to the fact that the prestressed steel bars are broken are avoided; meanwhile, due to arrangement of the lifting appliance, the number of layers of the stacking places of the laminated slab bottom plates can be increased, limitation that only six layers of the prestressed laminated slab bottom plates can be stacked is broken through, the stacking places are saved, and the loading number in the transportation process is increased; and in addition, only two ends need to be supported in the stacking and using process of the laminated slabs.

Description

technical field [0001] The invention belongs to the technical field of building material processing and application, and in particular relates to a production process of a prestressed concrete laminated slab base. Background technique [0002] Truss reinforced concrete laminated slab (hereinafter referred to as laminated slab) is a better structural form combining prefabricated and cast-in-place concrete. The prefabricated slab and the upper cast-in-place concrete layer are combined to work together as a whole. The main reinforcement of the upper concrete cast-in-place layer is only equipped with negative moment reinforcement and structural reinforcement. The bottom slab of the laminated slab can be used as the bottom formwork of the cast-in-situ concrete layer. In view of the above advantages, laminated panels are gradually being widely used in various residential and public construction projects. [0003] In ordinary reinforced concrete structures, due to the low ultimat...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problem that the laminated slab floor is prone to surface warping and breakage, the present invention proposes a method that is simple, easy to operate and can effectively avoid the warping of the laminated slab floor surface to realize the production of large-span laminated slab floor and can replace the steel bar truss Reduce cost and improve efficiency, increase the number of stacked layers in the process of factory production, transportation and on-site use, reduce the number of supports to achieve support at both ends, and the reusable prestressed concrete laminated slab floor production process

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