Laminated slab

Abstract

Disclosed is a laminated slab which consists of a reinforced concrete (1) and a reinforced concrete ribbed precast slab (2); the reinforced concrete ribbed precast slab (2) is arranged at the bottom of the laminated slab and comprises a reinforced concrete strip soleplate (3) and a reinforced concrete longitudinal long rib(4). The laminated slab is characterized by being provided with holes (5) which run horizontally through the longitudinal long rib (4) or / and the soleplate (3); the holes (5) are holes with varying sections which can be guided in the horizontal or / and longitudinal direction. Therefore, the laminated slab is applicable to the cast-in-situ reinforced concrete or prestressed reinforced concrete superposed floors, roofs, walls, foundation slabs and bridges.

Description

(1) Technical field [0001] The invention relates to a laminated board. (2) Background technology [0002] 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 of slabs and ribs, and the ribs have holes for piercing the steel bars. The thickness of the slab is large, and the penetration of the steel bars is difficult and slow. The effective height of the reinforcement...

AI Technical Summary

Problems solved by technology

[0002] 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 of slabs and ribs, and the ribs have holes for piercing the steel bars. The thickness of the slab is large, and the penetration of the steel bars is difficult and slow. The effective height of the steel bar is greatly reduced, which affects the two-way force balance of the floor, making it difficult to form an equivalent two-way slab, etc.

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