Superimposed plate

Abstract

The invention relates to a superimposed plate which comprises reinforced concrete (1) and reinforced concrete ribbed prefabricated plates (2). The reinforced concrete ribbed prefabricated plates (2) are arranged at the bottom of the superimposed plate and comprise reinforced concrete long strip-shaped bottom plates (3) and reinforced concrete longitudinal long ribs (4). The superimposed plate is characterized in that longitudinal or transverse reinforcement bars (5) are arranged in the longitudinal long ribs (4); the reinforcement bars (5) are prestressed reinforcement bars exposed out of thelongitudinal long ribs (4) from pits (6), or / and grooves (7), or / and holes (8) on the longitudinal long ribs (4); two-way structure bearing superimposed plates combining cast-in-place with prefabrication are formed; the reinforcement bars (5) are arranged in the bottom plates (3); the reinforcement bars (5) are longitudinal reinforcement bars; and reinforcement bar explosion points on the same longitudinal reinforcement bar (5) are in the same straight line. The invention is suitable for cast-in-place reinforced concrete or prestressed reinforced concrete superimposed floor covers, roof covers, wall bodies, sole plates and bridges and particularly for the superimposed floor covers.

Description

[0001] This application is a divisional application of an invention patent application with the filing date of December 7, 2007, the application number of 2007101994137, and the title of "a laminated board". (1) Technical field [0002] The invention relates to a laminated board. (2) Background technology [0003] At present, the reinforced concrete floor slabs used in China include cast-in-place floor slabs and prefabricated floor slabs. The cast-in-place floor slabs have good integrity, but they need to be molded on site, and then concrete is poured. The construction period is difficult, the loss of the formwork is large, and the cost is high. formwork, short construction period and low cost, but the prefabricated components are self-heavy, difficult to hoist, cracks are prone to occur at the splicing parts of the components, and the integrity is poor, such as the patent No. ZL0322765. A reinforced concrete prefabricated component. The prefabricated component is composed o...

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Problems solved by technology

[0003] At present, the reinforced concrete floor slabs used in China include cast-in-place slabs and prefabricated slabs. The cast-in-place slabs have good integrity, but they need to be molded on site, and then concrete is poured. The construction period is difficult, the loss of the formwork is large, and the cost is high. formwork, short construction period and low cost, but the prefabricated components are self-heavy, difficult to hoist, cracks are prone to occur in the splicing parts of the components, and the integrity is poor, such as the patent No. ZL0322765. A reinforced concrete prefabricated component. The prefabricated component is composed of slabs and ribs, and the ribs have holes for passing steel bars. The thickness of the slab is large, which greatly reduces the effective height of the steel bars placed in the cast-in-place concrete, which affects the floor. Two-way force balance, it is difficult to form an equivalent two-way plate, etc.

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