CN216075579U

CN216075579U - Prefabricated floor and precast beam connected node

Info

Publication number: CN216075579U
Application number: CN202121984471.2U
Authority: CN
Inventors: 赵丹
Original assignee: Sanneng Integrated Housing Co Ltd
Current assignee: Sanneng Integrated Housing Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-18
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a prefabricated floor slab and prefabricated beam connecting node which comprises at least two prefabricated floor slabs (3) installed adjacently and a prefabricated beam (2) installed below the two prefabricated floor slabs installed adjacently, wherein a plurality of fourth connecting holes (31) are reserved at the end part of each prefabricated floor slab, two rows of protruding reinforcing steel bars (24) are embedded in the beam surface of each prefabricated beam corresponding to the fourth connecting holes in the prefabricated floor slabs, the end parts of the two prefabricated floor slabs installed adjacently are respectively lapped on the prefabricated beam, the fourth connecting holes of the two prefabricated floor slabs are respectively sleeved on the adjacent rows of protruding reinforcing steel bars in the prefabricated beam, and mortar is filled in the fourth connecting holes and a first splicing seam between the two prefabricated floor slabs. The prefabricated floor slab and the prefabricated beam are simple to produce and manufacture, rapid to assemble and capable of greatly saving the construction cost.

Description

Prefabricated floor and precast beam connected node

Technical Field

The utility model relates to an assembly type building, in particular to a prefabricated floor slab and prefabricated beam connecting node.

Background

Chinese patent CN209538376U discloses an assembled vestibule, original building body and install the connection between the elevator additional when it is used for the building body to install the elevator additional, just the assembled vestibule includes precast concrete component, first pre-buried steel sheet connecting piece and the pre-buried steel sheet connecting piece of second, and the one end of first pre-buried steel sheet connecting piece and the pre-buried steel sheet connecting piece of second is buried underground respectively at precast concrete component's both ends, and the tip that precast concrete component was stretched out to the other end of first pre-buried steel sheet connecting piece is connected with installing the elevator girder steel additional, and the tip that precast concrete component was stretched out to the other end of the pre-buried steel sheet connecting piece of second is connected with original building body ladder beam. The assembly type corridor has the advantages of simple construction process, short construction period, reasonable stress, energy conservation, environmental protection and the like, but the assembly type corridor needs the original building body and the support additionally provided with the elevator beams, is only suitable for corridor construction with short length, and has very limited application range.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing assembly type corridor still needs to be supported by means of a site building structure and is not suitable for long-distance building, and provides a prefabricated floor slab and prefabricated beam connecting node.

In order to solve the technical problems, the utility model adopts the following technical scheme: a prefabricated floor slab and prefabricated beam connecting node comprises at least two prefabricated floor slabs and prefabricated beams, wherein the two prefabricated floor slabs are installed adjacently, the prefabricated beams are installed below the two prefabricated floor slabs which are installed adjacently, a plurality of fourth connecting holes are reserved in the end portions of the prefabricated floor slabs, two rows of extending reinforcing steel bars are embedded in the beam surfaces of the prefabricated beams corresponding to the fourth connecting holes in the prefabricated floor slabs, the end portions of the two prefabricated floor slabs which are installed adjacently are respectively connected to the prefabricated beams in a lap joint mode, the fourth connecting holes of the two prefabricated floor slabs are respectively sleeved into the adjacent rows of extending reinforcing steel bars in the prefabricated beams, and mortar is filled in the fourth connecting holes and a first splicing joint between the two prefabricated floor slabs.

According to the utility model, the extending steel bars are pre-buried on the beam surface of the precast beam, the fourth connecting hole is reserved at the end part of the precast floor slab, the end part of the precast floor slab is lapped on the precast beam, the fourth connecting hole on the precast floor slab is sleeved on the extending steel bars of the precast beam, and meanwhile, mortar is filled in the first splicing joint between the fourth connecting hole and the precast floor slab, so that the precast floor slab and the precast beam are firmly and stably connected, the assembly is simple, and the construction cost is saved.

And in order to keep the splicing position of the precast floor slab to be flat and stable, mortar is paved on the beam surface of the precast beam.

When the prefabricated top slab and the prefabricated column are connected, the prefabricated top slab is adopted as the prefabricated top slab, the end part of the prefabricated top slab is provided with the reverse ridges, the fifth connecting holes matched with the extending steel bars of the prefabricated beams are reserved on the reverse ridges, the reverse ridges of the adjacent prefabricated top slabs are respectively lapped on the prefabricated beams, second splicing seams are formed between the reverse ridges, the fifth connecting holes of the two prefabricated top slabs are respectively sleeved on the adjacent row of the extending steel bars on the prefabricated beams, mortar is filled in the fifth connecting holes and the second splicing seams, and the mutually spliced reverse ridges are covered with the prefabricated cover plates.

Preferably, in order to improve the waterproof performance of the prefabricated cover plate, the cross section of the prefabricated cover plate is in an inverted U shape, and the bottom surface of the prefabricated cover plate is supported on the top surface of the prefabricated floor slab.

Compared with the prior art, the utility model has the beneficial effects that:

the prefabricated floor slab and the prefabricated column are simple to produce and manufacture, quick to assemble, small in influence on site construction and capable of greatly saving construction cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structural view of a prefabricated column according to the present invention.

FIG. 2 is an enlarged view of the first layer structure of the prefabricated column.

Fig. 3 is an enlarged view of the bottom structure of the prefabricated column.

Fig. 4 is a three-dimensional structural view of the precast beam of the present invention.

Fig. 5 is a three-dimensional structural view of the precast floor slab of the present invention.

Fig. 6 is a three-dimensional structural view of the prefabricated top panel of the present invention.

Fig. 7 is a three-dimensional structural view of a prefabricated cover panel according to the present invention.

Fig. 8 is a structural view of a prefabricated column and a foundation connection node.

Fig. 9 is a structural view of a connection node of a precast column and a precast beam.

Fig. 10 is a structural view of a prefabricated column and prefabricated floor slab connection node.

Fig. 11 is a structural diagram of a connection node of a prefabricated column, a prefabricated top plate and a prefabricated cover plate.

FIG. 12 is a schematic view of prefabricated column installation.

Fig. 13 is a schematic view of an installation structure of the precast column and the precast beam of the second floor.

Fig. 14 is a schematic view of the installation of a second floor precast slab.

Fig. 15 is a schematic view of the installation of a third layer of precast floor slabs.

Fig. 16 is a schematic view of the top precast beam installation.

Fig. 17 is a schematic view of the installation of the top prefabricated roof panel.

Fig. 18 is a three-dimensional block diagram of a fully assembled vestibule of the present invention (installation of prefabricated cover panels).

Detailed Description

The utility model is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the utility model.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

As shown in fig. 17, an embodiment of the fully-assembled corridor of the utility model includes a plurality of precast columns 1, a plurality of precast beams 2, a plurality of precast floor slabs 3, a plurality of precast roof slabs 4 and a plurality of precast cover plates 5, wherein each precast column 1 is arranged in pairs and in a group at equal intervals along the length direction of the corridor, each group of precast columns is connected through the precast beams 2, two ends of each precast floor slab 3 are lapped on the precast beams 2, the precast roof slabs 3 on the top layer adopt the precast roof slabs 4, and the precast cover plates 5 are covered on the tops of second splicing seams of the adjacent precast roof slabs 4.

As shown in fig. 1-3, 8 and 9, a first anchor plate 11 is pre-embedded at the bottom of the precast column 1, first connection holes 12 are reserved at four corners of the first anchor plate 11, and the first connection holes 12 are respectively arranged corresponding to first screws 61 pre-embedded on the foundation 6. The bottom of prefabricated post 1 sets up first hand hole 13 corresponding the position of first connecting hole 12 for first screw rod 61 passes first anchor slab 11 back installation first nut 8. A bracket 14 is arranged at the position, connected with the precast beam 2, of each precast column 1, a second anchor plate 15 is embedded at the end part of the bracket 14, second connecting holes 16 are reserved at four corner parts of the second anchor plate 15, and a second hand hole 17 is arranged at the position, corresponding to the second connecting holes 16, of the end part of the bracket 14. The second hand hole 17 is used for installing the second nut 10 after the second screw 9 passes through the second anchor plate 15. During installation, the brackets 14 of the two prefabricated columns 1 in each group of prefabricated columns are arranged oppositely, so that the prefabricated beams 2 can be conveniently connected through the second anchor plates 15.

As shown in fig. 4, 9-11, third anchor plates 21 are embedded in two end portions of the precast beam 2, and third connection holes 22 are reserved at four corners of the third anchor plates 21. And third hand holes 23 are respectively formed in the positions, corresponding to the third connecting holes 22, of the two end parts of the precast beam 2, and are used for installing second nuts 10 after the second screw rods 9 penetrate through the third anchor plates 21. Two rows of extending steel bars 24 fixedly connected with the prefabricated floor slab 3 or the prefabricated top plate 4 are reserved on the beam surface of the prefabricated beam 2.

As shown in fig. 5, fourth connection holes 31 are reserved at two ends of the precast floor slab 3, and the fourth connection holes 31 are arranged corresponding to the protruding reinforcing bars 24 on the precast girders 2. The four corners of precast floor slab 3 set up respectively and let position portion 32 to when the vestibule assembly, precast floor slab 3 can laminate with the side of precast column 1.

As shown in fig. 6, two sides of the precast top panel 4 are respectively provided with a convex reverse sill 41, a fifth connecting hole 42 is reserved on each reverse sill 41, and the fifth connecting hole 42 is arranged corresponding to the protruding reinforcing steel bar 24 on the precast beam 2.

As shown in fig. 7, the prefabricated cover plate 5 has a U-shaped cross section, and the prefabricated cover plate 5 is reversely buckled on the mutually spliced reversed ridges 41 of the two adjacent prefabricated top plates 4, and is used for waterproofing together with the reversed ridges 41.

As shown in fig. 12-17, the installation method of the fully-assembled vestibule of the present invention includes the following steps:

s1: pouring a foundation 6 of the corridor on site, pre-burying a first screw 61 in the foundation 6 according to the installation requirement of the precast column 1, extending the upper end of the first screw 61 out of the top surface of the foundation 6, and screwing a leveling nut 7 into the extending end of the first screw 61;

s2: installation of the prefabricated column 1: correspondingly sleeving a first connecting hole 12 on a first anchor plate 11 of the prefabricated column 1 on a first screw 61 pre-embedded on a foundation 6, placing the first anchor plate 11 on a leveling nut 7, adjusting the verticality of the prefabricated column 1 through the leveling nut 7 on the first screw 61, and screwing a first nut 8 on the first screw 61 by means of a first hand hole 13 to fix the prefabricated column 1;

s3: installing the precast beam 2: respectively corresponding third anchor plates 21 at two ends of the precast beam 2 to second anchor plates 15 on brackets 14 on corresponding precast columns 1, penetrating second screw rods 9 through second connecting holes 16 on the second anchor plates 15 and third connecting holes 22 on the third anchor plates 21, and then respectively connecting and fixing two ends of the second screw rods 9 in third hand holes 23 of the precast beam 2 and second hand holes 17 of the precast columns 1 by using second nuts 10;

s4: installing a first layer of prefabricated floor slab 3: firstly, laying a layer of high-strength mortar on the beam surface of a precast beam 2, then respectively lapping two ends of a precast floor slab 3 on one precast beam 2, correspondingly sleeving a fourth connecting hole 31 on the precast floor slab 3 on an extending reinforcing steel bar 24 on the precast beam 2, and filling the first splicing seam formed between the fourth connecting hole 31 and the adjacent precast floor slab 3 with the high-strength mortar;

s5: repeating the steps S3 and S4 to install the precast beams 2 and the precast floor slabs 3 of other layers, wherein the precast floor slab 3 at the top layer adopts a precast top slab 4;

s6: after the prefabricated top plate 4 is installed and the fifth connecting hole 42 of the prefabricated top plate 4 is filled with high-strength mortar, a layer of mortar is laid on the reversed ridge surface layer of the prefabricated top plate 4, and then the prefabricated cover plate 5 is installed on the reversed ridge 41 of the adjacent prefabricated top plate 4.

Note: for a corridor with large span or other similar projects, design brackets can be considered in four directions of the precast columns 1 and are used for connecting precast beams 2 at different positions in a horizontal direction and a vertical direction.

The above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modify equivalent embodiments using the technical content disclosed above without departing from the technical solution of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. A prefabricated floor slab and prefabricated beam connecting node comprises at least two prefabricated floor slabs (3) installed adjacently and a prefabricated beam (2) installed below the two prefabricated floor slabs installed adjacently, and is characterized in that a plurality of fourth connecting holes (31) are reserved at the end portion of each prefabricated floor slab, two rows of protruding reinforcing steel bars (24) are embedded in the beam surface of each prefabricated beam corresponding to the fourth connecting holes in the prefabricated floor slabs, the end portions of the two prefabricated floor slabs installed adjacently are respectively lapped on the prefabricated beam, the fourth connecting holes of the two prefabricated floor slabs are respectively sleeved on the adjacent row of protruding reinforcing steel bars in the prefabricated beam, and mortar is filled in the fourth connecting holes and a first splicing seam between the two prefabricated floor slabs.

2. The precast floor slab and precast beam connection node according to claim 1, wherein a beam surface of the precast beam is coated with mortar.

3. The prefabricated floor and prefabricated beam connecting node according to claim 1, wherein the prefabricated floor at the top layer adopts a prefabricated roof (4), the end of the prefabricated roof is provided with an inverted ridge (41), fifth connecting holes matched with the extending steel bars of the prefabricated beam are reserved on the inverted ridge, the inverted ridges of the adjacent prefabricated roof are respectively lapped on the prefabricated beam, a second splicing seam is formed between the inverted ridges, the fifth connecting holes of the two prefabricated roofs are respectively sleeved on the adjacent row of the extending steel bars on the prefabricated beam, mortar is filled in each fifth connecting hole and the second splicing seam, and the inverted ridges which are spliced with each other are covered with a prefabricated cover plate (5).

4. The precast floor slab and precast beam connection node of claim 3, wherein the precast cover slab has an inverted U-shaped cross section, and the bottom surface of the precast cover slab is supported on the top surface of the precast floor slab.

5. The precast floor slab and precast beam connection node according to claim 3, wherein a beam surface of the precast beam is coated with mortar.