Laminated inverted T-shape slab

Abstract

The present invention relates to a laminated inverted T shaped plate. It includes bottom plate and longitudinal rib, and said longitudinal rib is set on the bottom plate. It is characterized by that on the bottom plate at least one transverse recessed groove is set, the transverse recessed groove for in-situ casting concrete transverse strip projected board or / and prefabricated transverse projected board are perpendicularly-crossed or / and obliquely-crossed with said longitudinal rib, the recessed groove and projected board are spaced and alternatively perpendicularly-crossed or / and obliquely-crossed with the longitudinal rib. Said laminated inverted T shaped plate can be used for in-situ casting reinforced concrete or prestressed reinforced concrete laminated floor, roof, wall body, foundation bedplate and bridge, etc.

Description

(1) Technical field [0001] The invention relates to a superimposed inverted T-shaped plate. (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 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-plac...

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 difficulty is high, the loss of the formwork is large, and the cost is high. The prefabricated floor does not require on-site formwork, the construction period is short, and the cost is low. However, the prefabricated components are heavy and difficult to hoist. Cracks are prone to occur at the splicing parts of the components, and the integrity is poor. For example, the patent number is ZL0322765. 2. The patent titled a reinforced concrete assembled floor slab discloses a reinforced concrete prefabricated component. The prefabricated component is composed of plates and ribs, and the ribs have holes for piercing steel bars. The effective height of the steel bars in the pouring concrete is greatly reduced, which affects the two-way force balance of the floor slab, and it is difficult to form an equivalent two-way slab, etc.

Images