CN205116510U - Precast concrete coincide floor - Google Patents

Abstract

The utility model discloses a prefabricated concrete composite floor, which belongs to the technical field of prefabricated building construction and comprises a first prefabricated bottom slab and a second prefabricated bottom slab. The plate seam, the first prefabricated bottom plate and the second prefabricated bottom plate are pierced with transverse anchoring reinforcement bars extending to the plate seam, and the transverse anchoring reinforcement bars at the plate seam are provided with The fiber composite material rods of the slit formwork, the lamination layer above the first prefabricated base plate and the second prefabricated base plate and the joints of the plates are poured with concrete. The utility model does not need to set supports at the lower part of the slab formwork, which greatly reduces the complexity of construction and ensures the cleanliness of the construction site. When removing the formwork, only the connection between the fiber composite material rod and the slab formwork needs to be removed. It only needs to be connected. Compared with the prior art, the utility model has the characteristics of simple construction, convenient dismantling in the later stage, and shortened construction period.

Description

Precast Concrete Laminate Floors

technical field

The utility model relates to the technical field of prefabricated building construction, in particular to a prefabricated concrete laminated floor slab.

Background technique

The laminated floor is a structural form that combines the prefabricated concrete floor and the cast-in-place concrete. The floor combines the advantages of the cast-in-place floor and the prefabricated floor. Compared with the traditional cast-in-place slab structure, it can reduce the amount of formwork and wet work, greatly shorten the construction period, and realize the industrialized production of prefabricated parts.

At present, most of the prefabricated bottom plates used in the superimposed structure are one-way slabs. The seam treatment is the key structure to realize the two-way force transmission after lamination. However, the existing seam treatment still needs to set up supports from the bottom to support the seam After the formwork is poured, the formwork is removed and the support is removed. The slab seam treatment in the prior art is likely to lead to cumbersome construction, inconvenient removal in the later stage, and extended construction period.

Utility model content

The technical problem to be solved by the utility model is to provide a prefabricated concrete laminated floor slab which is easy to construct, convenient to dismantle later, and can shorten the construction period.

In order to solve the problems of the technologies described above, the utility model provides technical solutions as follows:

A prefabricated concrete composite floor, comprising a first prefabricated bottom slab and a second prefabricated bottom slab, a slab seam of a certain width is spaced between the first prefabricated bottom slab and the second prefabricated bottom slab, and the first prefabricated bottom slab and the second prefabricated bottom slab The bottom plates are all pierced with transverse anchoring steel bars protruding to the plate seams, and fiber composite material rods for suspending the plate seam formwork are arranged on the transverse anchoring steel bars at the plate seams, and the first prefabricated Concrete is poured on the superimposed layer above the bottom slab and the second prefabricated bottom slab and at the seams of the slabs.

Further, the lower surface of the fiber composite material rod is provided with threads capable of cooperating with nuts for suspending the slit formwork.

Further, the transverse anchoring steel bars penetrated inside the first prefabricated bottom plate are anchored into the superimposed layers of the second prefabricated bottom plate, and the transverse anchoring steel bars penetrated inside the second prefabricated bottom plate are anchored to the first prefabricated bottom plate. In the laminate layer of the base plate.

Further, horizontal and vertical distributed steel bars are arranged in the laminated layer.

Further, hanging bars with hooks are arranged between the transverse anchoring reinforcement extending to the outside of the first prefabricated floor and the second prefabricated floor and the horizontal distribution reinforcement in the laminated layer.

Further, the inside of the first prefabricated bottom plate and the second prefabricated bottom plate are also provided with longitudinal prestressed steel bars connected with the transverse anchoring steel bars.

Further, the width of the plate seam is 100-250mm.

Further, the thickness of the first prefabricated floor and the second prefabricated floor is 35-45mm, the thickness of the laminated layer is 70-90mm, and the longitudinal spacing of the fiber composite rods is 500-1500mm.

The utility model has the following beneficial effects:

The prefabricated concrete laminated floor slab of the present utility model adopts fiber composite material rods which have the characteristics of light weight and strong bearing capacity, so that the prefabricated components of the present utility model have the characteristics of lightness and good stability during installation. Seam treatment needs to support the slab formwork from the lower part, and remove the formwork and support after the pouring is completed. In the utility model, the fiber composite material rods arranged at the slab seam are used to suspend the slab formwork, so there is no need to install the slab formwork at the slab seam. The lower part of the formwork is provided with support, which greatly reduces the complexity of the construction and ensures the cleanliness of the construction site. When removing the formwork, only the connection between the fiber composite material rod and the plate seam formwork needs to be removed, so that the utility model has the advantages of simple construction, It is easy to dismantle later and can shorten the construction period.

Description of drawings

Fig. 1 is the side sectional view of the prefabricated concrete laminated slab of the present invention;

Fig. 2 is a top view of the precast concrete laminated floor slab of the present invention.

detailed description

In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will describe in detail with reference to the drawings and specific embodiments.

The utility model provides a prefabricated concrete laminated floor, as shown in Figure 1-2, comprising a first prefabricated floor 1 and a second prefabricated floor 2, the interval between the first prefabricated floor 1 and the second prefabricated floor 2 has a certain width The first prefabricated floor 1 and the second prefabricated floor 2 are pierced with transverse anchoring reinforcement bars 4 protruding to the plate seam 3, and the transverse anchoring reinforcement bars 4 at the plate seam 3 are provided with suspending panels. The fiber composite rods 6 of the joint formwork 5, the superimposed layer 7 above the first prefabricated base plate 1 and the second prefabricated base plate 2 and the joints 3 are poured with concrete.

The fiber composite material rod 6 used in the prefabricated concrete composite floor slab of the present utility model has light weight, which makes the utility model very light when installing prefabricated components. When the utility model is pouring concrete, the slab formwork 5 has a strong load-bearing capacity, which ensures the stability of the operation process of the utility model and avoids the leakage of cast-in-situ concrete due to the insufficient bearing capacity of the slab formwork 5. , the fiber composite material rod 6 is a commonly used prefabricated component in the field of building construction, and can be obtained by purchasing. In this utility model, aiming at the disadvantage that the traditional slab 3 treatment needs to support the slab formwork 5 from the lower part, and remove the formwork and support after pouring is completed, in the utility model, the fiber composite material arranged at the slab 3 is adopted Rods 6 suspend the slab formwork 5, so there is no need to set supports at the lower part of the slab formwork 5, which greatly reduces the complexity of construction and ensures the cleanliness of the construction site. When removing the formwork, only the fiber composite rod 6 and The connection of the slab formwork 5 is sufficient, so that the utility model has the characteristics of simple construction, convenient dismantling in the later stage, and shortened construction period.

As an improvement of the present utility model, as shown in Fig. 1-2, the lower surface of the fiber composite material rod 6 is provided with threads capable of cooperating with nuts 8 for suspending the slit formwork 5. When installing the formwork, the fiber composite material rod 6 with a threaded structure is used to cooperate with the nut 8 to fix the plate seam formwork 5 at the lower part of the plate seam 3. When removing the formwork, only the nut 8 at the end of the fiber composite material rod 6 needs to be unscrewed , just remove the slab formwork 5, this design further enhances the features of the utility model, which are simple in construction and easy to dismantle in the later stage, and significantly improves the construction efficiency.

In the present utility model, the transverse anchoring steel bars 4 pierced inside the prefabricated bottom plate extend out of the prefabricated bottom plate and are anchored into the laminated layer 7 of the adjacent prefabricated bottom plate. Preferably, the transverse anchoring steel bars 4 pierced inside the first prefabricated bottom plate 1 are anchored To the laminated layer 7 of the second prefabricated floor 2 , the transverse anchoring steel bars 4 pierced inside the second prefabricated floor 2 are anchored to the laminated layer 7 of the first precast floor 1 . This improvement makes the transverse anchoring steel bars 4 in the utility model penetrated in the whole interior of the cast-in-place concrete, improves the anchorage degree between the prefabricated floor and the cast-in-place concrete, and further enhances the stress strength of the laminated floor slab. In addition, in the utility model, other designs known to those skilled in the art can also be used to achieve the technical requirements of this embodiment, such as the transverse anchoring steel bar 4 pierced inside the prefabricated floor extending out of the prefabricated floor and reaching the prefabricated floor and the cast-in-place concrete. It is sufficient that the tight connection is possible.

As a further improvement of the present invention, transverse and longitudinal distributed steel bars are arranged in the laminated layer 7 . The horizontal and vertical distribution reinforcements are structural reinforcements evenly arranged inside the cast-in-place concrete. The horizontal and vertical distribution reinforcements can be bound or welded together with thin wires to form a steel skeleton, further increasing the strength of the laminated floor.

Preferably, as shown in Figures 1-2, a hanging hook with a hook is provided between the transverse anchoring steel bar 4 protruding to the outside of the first prefabricated floor 1 and the second prefabricated floor 2 and the horizontal distribution steel bars in the laminated layer 7. tendon 10. The hanging bar 10 transmits the concentrated force acting on the bottom of the concrete beam member to the top, and is a kind of steel bar that improves the ability of the horizontal anchoring steel bar 4 to bear the concentrated load. ability.

In order to prevent cracks from appearing in the first prefabricated floor 1 and the second prefabricated floor 2, as shown in Fig. Prestressed steel bars 11. At the same time, the longitudinal prestressed steel bars 11 also have the function of increasing the stress strength of the first prefabricated floor 1 and the second prefabricated floor 2 .

In order to strengthen the transverse rigidity of the prefabricated bottom slab, the width of the slit 3 between the first prefabricated bottom slab 1 and the second prefabricated bottom slab 2 is 100-250 mm.

Preferably, the thickness of the first prefabricated base plate 1 and the second prefabricated base plate 2 is 35-45 mm, the thickness of the superimposed layer 7 is 70-90 mm, and the longitudinal spacing of the fiber composite rods 6 is 500-1500 mm. In the present invention, the thickness of the first prefabricated bottom plate 1 and the second prefabricated bottom plate 2, the thickness of the superimposed layer 7 and the longitudinal spacing of the fiber composite material rods 6 can also be adjusted according to specific construction conditions.

The foregoing is a preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present utility model. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. a precast concrete laminated floor slab, it is characterized in that, comprise the first prefabricated panel and the second prefabricated panel, the plate seam of one fixed width is separated with between described first prefabricated panel and the second prefabricated panel, the horizontal anchor bar extending out to described plate seam place is all equipped with in described first prefabricated panel and the second prefabricated panel, the described horizontal anchor bar at described plate seam place is provided with the fibrous composite rod for suspending plate slit die plate in midair, the overlapping layers above described first prefabricated panel and the second prefabricated panel and described plate seam place have built concrete.

2. precast concrete laminated floor slab according to claim 1, is characterized in that, the lower surface of described fibrous composite rod is provided with can with nut screw connection for suspending the screw thread of described plate slit die plate in midair.

3. precast concrete laminated floor slab according to claim 1, it is characterized in that, the horizontal anchor bar that described first prefabricated panel inside wears is anchored in the overlapping layers of described second prefabricated panel, and the horizontal anchor bar that described second prefabricated panel inside wears is anchored in the overlapping layers of described first prefabricated panel.

4. precast concrete laminated floor slab according to claim 3, is characterized in that, is provided with horizontal and vertical distribution reinforcement in described overlapping layers.

5. precast concrete laminated floor slab according to claim 4, is characterized in that, extend out to be provided with between distribution reinforcement horizontal in the horizontal anchor bar of described first prefabricated panel and the second prefabricated panel outside and described overlapping layers be with crotch hang muscle.

6. precast concrete laminated floor slab according to claim 5, is characterized in that, described first prefabricated panel and the inside of the second prefabricated panel are also provided with the longitudinal prestressing reinforcing bar be connected with described horizontal anchor bar.

7. precast concrete laminated floor slab according to claim 6, is characterized in that, the width of described plate seam is 100-250mm.

8. according to described precast concrete laminated floor slab arbitrary in claim 1-7, it is characterized in that, the thickness of described first prefabricated panel and the second prefabricated panel is 35-45mm, and the thickness of described overlapping layers is 70-90mm, and the longitudinal pitch of described fibrous composite rod is 500-1500mm.