Prestressed hollow composite slab

Abstract

The invention relates to a prestressed hollow composite slab and a manufacturing method thereof, and belongs to the field of normal building construction. The composite slab comprises prefabricated pieces (1) and composite layers (2). Thickness of a bottom plate (3) of each prefabricated piece (1) is greater than or equal to 35 mm and less than or equal to 60 mm, prestressed steel wires (4) in the bottom plate are located at the upper parts of transversal steel bars (5), and the length of each prestressed steel wire (4) and each transversal steel bar (5) extending out of the corresponding bottom plate (3) is greater than or equal to 50 mm; the width of each prefabricated piece is greater than or equal to 1500 mm, light-weight material filling pieces (6) are arranged at the upper part of each prefabricated piece (1); the heights of concrete solid ribs (7) between adjacent filling pieces are greater than or equal to 50 mm; the transversal steel bars (5) between adjacent prefabricated pieces (1) are overlaid in a joint area (8), upper part steel bars (10) of the composite slab are bound, composite layer concrete is poured, and the composite slab is formed. According to the prestressed hollow composite slab and the manufacturing method thereof, the self-weight of the composite slab is light, the stiffness in the longitudinal direction and the transversal direction is high, the application range is large, and transportation and installation are convenient. The prestressed hollow composite slab and the manufacturing method thereof have good economic efficiency and applicability, and play a role on promoting the development of building technology.

Description

(1) Technical field [0001] The invention relates to an assembled reinforced concrete hollow floor structure, in particular to a prestressed hollow laminated plate and a manufacturing method thereof, belonging to the field of general building construction. (2) Background technology [0002] Prefabricated buildings have the characteristics of high degree of factory production, fast construction speed, and low overall cost. This structural form is currently being vigorously promoted by the country. [0003] For prefabricated floors with a span of less than 5m, ordinary laminated slabs can solve the problem; but for floors with a span of more than 5m, especially those with a span of more than 7m, if ordinary solid floors are used, the structure will be self-heavy and the seismic performance will be poor. , and the comprehensive economic index is low. For floor structures, regardless of cast-in-place or composite structures, there are two main technical means to solve the proble...

AI Technical Summary

Problems solved by technology

[0010] In the existing prefabricated laminated floor technology, there are self-heavy prefabricated components, small rigidity of prefabricated components, small applicable span, poor connection performance between adjacent prefabricated components, not suitable for two-way slabs, and large anti-arch value of prefabricated components. Affecting the transportation and installation of components, the purpose of the present invention is to provide a prestressed hollow laminated plate

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