Interval-type prestressed special-shaped grooved plate combined floor slab

Abstract

The invention provides an interval-type prestressed special-shaped grooved plate combined floor slab. The interval-type prestressed special-shaped grooved plate combined floor slab comprises a prefabricated prestressed special-shaped grooved plate, post-cast concrete poured on the upper part of the prefabricated pre-stressed shaped grooved pate, a floor bearing plate and cast-in-place concrete poured on the upper part of the floor bearing plate. The interval-type prestressed special-shaped grooved plate combined floor slab is characterized in that the prefabricated prestressed special-shaped grooved plate and the floor bearing plate are arranged at intervals, placing notches in the longitudinal direction are formed in two sides of the prefabricated prestressed special-shaped grooved plate,the two ends of the floor bearing plate are placed on the placing notches in the prefabricated prestressed special-shaped grooved plate, and the four parts, that is, the prefabricated prestressed special-shaped grooved plate, the post-cast concrete poured on the upper part of the prefabricated prestressed special-shaped grooved plate, the floor bearing plate and the cast-in-place concrete pouredon the upper part of the floor bearing plate, are cast into the whole. A method of combination of the prefabricated prestressed special-shaped grooved plate and cast-in-place is adopted, the applicability and integrity of the combined floor slab are improved, the cast-in-place part is free of a formwork and free of supporting, the construction progress is greatly increased, the project cost is reduced, and the prefabricated prestressed special-shaped grooved plate is high in single-rib bearing capacity and suitable for large live load.

Description

technical field [0001] The invention relates to the field of building structures, in particular to a structural system composition of a prefabricated assembly structure. Background technique [0002] The prestressed double T slab as the floor slab has the characteristics of high bending rigidity and good bearing capacity, but the use of the fully prefabricated double T slab as the floor slab has the problems of poor integrity, heavy prefabrication workload, and poor mold versatility. It is widely used in engineering applications. restricted by various conditions. The overhanging part of the prestressed double T slab is easily damaged, the slab has a large arch, and it is difficult to deal with the slab seam. In addition, prefabricated double T-plate modules are difficult to assemble and have strict specification restrictions, resulting in low mold turnover rate, which greatly increases the manufacturing cost of double T-plate, and can only be used for projects with small li...

AI Technical Summary

Problems solved by technology

[0002] The prestressed double T slab as the floor slab has the characteristics of high bending rigidity and good bearing capacity, but the use of the fully prefabricated double T slab as the floor slab has the problems of poor integrity, heavy prefabrication workload, and poor mold versatility. It is widely used in engineering applications. Restricted by various conditions

The cantilevered part of the prestressed double T slab is easily damaged, the slab has a large arch, and it is difficult to deal with the slab seam

In addition, the prefabricated double T-plate modules are difficult to assemble and have strict specification restrictions, resulting in low mold turnover rate, which greatly increases the manufacturing cost of double T-plate, and can only be used for projects with small live loads

There is no report on a prestressed special-shaped grooved slab composite floor with good integrity, strong versatility and low cost

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