CN107700749A - The structure and assembly method of through ribbed prefabricated one-way slabs entirely - Google Patents

Abstract

The invention relates to the field of prefabricated assembled concrete structure buildings, in particular to a structure and an assembly method of a fully prefabricated one-way slab with reinforcement. The structure is composed of two parts, the pre-embedded PVC pipe prefabricated slab and the pre-embedded PVC pipe laminated slab. The longitudinal stress reinforcement and horizontal distribution steel bars are arranged on the lower layer of the pre-embedded PVC pipe prefabricated slab, and the upper layer of the pre-embedded PVC pipe prefabricated slab is arranged. Structural reinforcement; PVC pipes inside the board are buried at the central axis of the prefabricated PVC pipe board, and the PVC pipes in the board run through the prefabricated board of PVC pipes. The concrete is poured to form a prefabricated slab with pre-embedded PVC pipes; the specific structure of the pre-embedded PVC pipe laminated slab is roughly the same as that of the No. 1 prefabricated slab, only the outlet of the grouted PVC pipe is set on the other side of the pre-embedded PVC pipe laminated slab. The prefabricated concrete floor slab of the present invention adopts a fully prefabricated concrete floor slab, and compared with the assembled concrete laminated slab floor and cast-in-place concrete floor slab, the amount of wet work is greatly reduced.

Description

The structure and assembly method of fully prefabricated one-way slab with reinforcement

technical field

The invention relates to the field of prefabricated assembled concrete structure buildings, in particular to a structure and an assembly method of a fully prefabricated one-way slab with reinforcement.

Background technique

The prefabricated concrete structure has the advantages of fast construction speed, energy saving and environmental protection, and small amount of wet work on site. It has developed rapidly in China in recent years. The floor is an important component of the prefabricated concrete structure. At present, in the prefabricated concrete structure, the floor slabs used are generally laminated slabs, that is, semi-prefabricated and semi-cast-in-place. Although the wet work volume of this kind of floor is less than that of cast-in-place floors, it is still very large. Before the laminated slab, the prefabricated concrete structure used a fully prefabricated concrete floor. Although the amount of cast-in-place was small, it was gradually banned due to poor integrity. Therefore, the present invention provides a novel fully prefabricated concrete floor structure and assembly method with good integrity.

Contents of the invention

The purpose of the present invention is to provide a fully prefabricated assembled concrete floor structure and assembly method to realize the production of various fully prefabricated slabs and the connection between all prefabricated slabs, so as to meet the needs of actual design and construction.

Technical scheme of the present invention:

A ribbed fully prefabricated one-way slab structure, which is composed of two parts of the prefabricated slab with pre-embedded PVC pipe and the laminated slab with pre-embedded PVC pipe, wherein:

(1) Pre-embedded PVC pipe prefabricated board

The longitudinal stress reinforcement and horizontal distribution reinforcement are arranged on the lower layer of the pre-embedded PVC pipe prefabricated slab, and the structural steel bars are arranged on the upper layer of the pre-embedded PVC pipe prefabricated slab; the PVC pipe inside the board is buried at the central axis of the pre-embedded PVC pipe prefabricated board, and the board The inner PVC pipe runs through the pre-embedded PVC pipe prefabricated board, and one port of the inner PVC pipe is vertically connected to the entrance of the grouted PVC pipe, and the pre-embedded PVC pipe prefabricated board is formed by pouring concrete;

(2) Pre-embedded PVC pipe laminated board

Longitudinal stress reinforcement and horizontal distribution reinforcement are arranged on the lower layer of the pre-embedded PVC pipe laminated slab, and structural steel bars are arranged on the upper layer of the pre-embedded PVC pipe laminated slab; PVC pipes in the board are buried at the central axis of the pre-embedded PVC pipe laminated slab. The inner PVC pipe runs through the pre-embedded PVC pipe laminated board, and one port of the inner PVC pipe is vertically connected to the outlet of the grouted PVC pipe, and the pre-embedded PVC pipe laminated board is formed by pouring concrete.

In the structure of the fully prefabricated one-way slab with cross-reinforcement, the bottom end of the entrance of the grouted PVC pipe is connected with the PVC pipe in the prefabricated slab of the prefabricated PVC pipe.

In the structure of the fully prefabricated one-way slab with piercing ribs, the bottom end of the outlet of the grouted PVC pipe is connected with the PVC pipe in the pre-embedded PVC pipe laminated board.

In the structure of the full prefabricated one-way slab through the reinforcement, the connecting steel bars are inserted into the PVC pipes in the pre-embedded PVC pipe prefabricated board into the PVC pipe in the board of the pre-embedded PVC pipe laminated board, and the two ends of the connecting steel bars are inserted respectively It is located at the non-splicing port of the PVC pipe in the board, and the prefabricated board of the embedded PVC pipe and the laminated board of the embedded PVC pipe are connected through the inserted connecting steel bars and grouting materials in the PVC pipe in the board.

The method for assembling the structure of the reinforced fully prefabricated one-way slab comprises the following steps:

(1) Place the pre-embedded PVC pipe prefabricated board and the pre-embedded PVC pipe laminated board at the same level. The board and the PVC pipe in the pre-embedded PVC pipe laminated board are at the same horizontal position and are in close contact. The grouting PVC pipe inlet of the pre-embedded PVC pipe prefabricated board and the grouted PVC pipe outlet of the pre-embedded PVC pipe laminated board are respectively located in the pre-embedded PVC pipe The outer side of the pipe prefabricated board and the pre-embedded PVC pipe laminated board;

(2) Insert the inserted connecting steel bar from the PVC pipe in the pre-embedded PVC pipe prefabricated board into the PVC pipe in the board of the pre-embedded PVC pipe laminated board, block the non-joint port of the PVC pipe in the board, and place the joint Sealing treatment, pour grouting material from the entrance of the grouting PVC pipe in sequence until the grouting material overflows from the outlet of the grouting PVC pipe, and complete the connection between the prefabricated board of the pre-embedded PVC pipe and the laminated board of the pre-embedded PVC pipe.

Advantage of the present invention and beneficial effect are:

1. The prefabricated concrete floor slab of the present invention adopts a fully prefabricated concrete floor slab, and compared with the prefabricated concrete laminated slab floor and cast-in-place concrete floor slab, the amount of wet work is greatly reduced.

2. The fully prefabricated concrete floor slab of the present invention changes the structure of the original prefabricated slab, the connection between the slabs is more reliable, and the integrity is better, which fully meets the engineering needs.

3. The invention has the advantages of a prefabricated concrete structure such as high assembly rate, energy saving and environmental protection, and meeting the requirements of green building development.

Description of drawings

Figure 1 is a three-dimensional view of the No. 1 prefabricated slab reinforcement and PVC pipe grouting holes.

Fig. 2 is a three-dimensional view of No. 1 prefabricated panel.

Fig. 3 is a three-dimensional diagram of the reinforcement of the No. 2 laminated slab and the grouting hole of the PVC pipe.

Fig. 4 is a three-dimensional view of the No. 2 laminated plate.

Figure 5 is a three-dimensional view of the splicing process of No. 1 prefabricated panel and No. 2 laminated panel.

Figure 6 is a three-dimensional view of the completed splicing of No. 1 prefabricated panel and No. 2 laminated panel.

In the figure, 1 structural reinforcement; 2 longitudinal stress reinforcement; 3 horizontal distribution reinforcement; 4 grouting PVC pipe entrance; Connect the bars.

detailed description:

As shown in Figures 1 to 6, the structure and assembly method of the present invention's reinforced fully prefabricated one-way slab mainly includes: prefabricated slabs with pre-embedded PVC pipes (Fig. 2) and laminated slabs with pre-embedded PVC pipes (Fig. 4). consists of parts.

(1) As shown in Figure 1-2, the specific structure of No. 1 prefabricated panel (prefabricated panel with embedded PVC pipe) is as follows:

On the lower layer of the No. 1 prefabricated slab 6, the longitudinal stress reinforcement 2 and the horizontally distributed reinforcement 3 are arranged, and the upper layer of the No. 1 prefabricated slab 6 is arranged with the structural reinforcement 1; at the central axis of the No. 1 prefabricated slab 6, a PVC pipe 5 is embedded in the panel. The PVC pipe 5 in the panel runs through the No. 1 prefabricated slab 6, and one port of the PVC pipe 5 in the panel is vertically connected to the entrance 4 of the grouting PVC pipe, and the No. 1 precast slab 6 is formed by pouring concrete.

Among them, the structural reinforcement 1, the longitudinal stress reinforcement 2, and the horizontal distribution reinforcement 3 are determined according to actual engineering calculations. The calculation method is the same as that of the cast-in-place slab. The bottom end of the grouted PVC pipe inlet 4 is connected with the PVC pipe 5 in the slab.

(2) As shown in Figure 3-4, the specific structure of the No. 2 laminated board (pre-embedded PVC pipe laminated board) is as follows:

In the lower layer of the No. 2 laminated slab 8, the longitudinal stress reinforcement 2 and the horizontal distribution reinforcement 3 are arranged, and the structural reinforcement 1 is arranged in the upper layer of the No. 2 laminated slab 8; PVC pipes 5 are buried in the central axis of the No. 2 laminated slab 8, The PVC pipe 5 in the board runs through the No. 2 laminated board 8, and one port of the PVC pipe 5 in the board is vertically connected to the outlet 7 of the grouting PVC pipe, and the No. 2 laminated board 8 is formed by pouring concrete.

Among them, the structural reinforcement 1, the longitudinal stress reinforcement 2, and the horizontal distribution reinforcement 3 are determined according to actual engineering calculations. The calculation method is the same as that of the cast-in-place slab. The bottom end of the grouted PVC pipe outlet 7 is connected with the PVC pipe 5 in the slab.

The specific structure of the No. 2 laminated board is roughly the same as that of the No. 1 prefabricated board, only the outlet 7 of the grouting PVC pipe is provided on the other side of the No. 2 laminated board 8 .

(3) As shown in Figures 5-6, the connection structure and method of the connection between the No. 1 prefabricated slab 6 and the No. 2 laminated slab 8 are as follows:

Place the No. 1 prefabricated slab 6 and the No. 2 laminated slab 8 at the same level, the side bottom edges of the No. 1 prefabricated slab 6 and the No. 2 laminated slab 8 are connected, and the No. 1 prefabricated slab 6 and the No. 2 laminated slab 8 The PVC pipes 5 in the panels are at the same horizontal position and are in close contact. The inlet 4 of the grouting PVC pipe of the No. 1 precast panel 6 and the outlet 7 of the grouting PVC tube of the No. 2 laminated panel 8 are located at the No. 1 precast panel 6 and the No. 2 laminated panel 8 respectively. Insert the connecting steel bar 9 from the PVC pipe 5 in the board of the No. 1 prefabricated board 6 into the PVC pipe 5 in the board of the second laminated board 8, block the port of the non-splicing part of the PVC pipe 5 in the board, and The splicing part is sealed, and the grouting material is sequentially poured from the grouting PVC pipe inlet 4 until the grouting material overflows from the grouting PVC pipe outlet 7, and the connection between the No. 1 prefabricated board 6 and the No. 2 laminated board 8 is completed.

The implementation results of the examples show that the prefabricated prefabricated concrete one-way slab of the present invention is easy to install, has a small amount of wet work, high assembly rate, energy saving and environmental protection, more reliable connection between the slabs, good integrity, and fully meets the requirements of the project. Design and construction needs, in line with the development requirements of green buildings, etc., engineering application prospects are broad.

Claims (5)

1. the structure of a kind of through ribbed prefabricated one-way slabs entirely, it is characterised in that the structure is pre-buried pvc pipe prefabricated board and pre-buried Two part docking compositions of pvc pipe superimposed sheet, wherein：

(1) pre-buried pvc pipe prefabricated board

Arrange Reinforcement and horizontal distribution reinforcing bar in the lower floor of pre-buried pvc pipe prefabricated board, pre-buried pvc pipe prefabricated board it is upper Layer arrangement distributing bar；Pvc pipe in plate is embedded with the axis of pre-buried pvc pipe prefabricated board, pvc pipe runs through pre-buried PVC in plate Pipe prefabricated board, grouting pvc pipe entrance is vertically connected in plate at the Single port of pvc pipe, pre-buried pvc pipe is formed by pouring into a mould concrete Prefabricated board；

(2) pre-buried pvc pipe superimposed sheet

Arrange Reinforcement and horizontal distribution reinforcing bar in the lower floor of pre-buried pvc pipe superimposed sheet, pre-buried pvc pipe superimposed sheet it is upper Layer arrangement distributing bar；Pvc pipe in plate is embedded with the axis of pre-buried pvc pipe superimposed sheet, pvc pipe runs through pre-buried PVC in plate Pipe superimposed sheet, the outlet of grouting pvc pipe is vertically connected in plate at the Single port of pvc pipe, pre-buried pvc pipe is formed by pouring into a mould concrete Superimposed sheet.

2. according to the structure of the prefabricated one-way slabs entirely of the through ribbed described in claim 1, it is characterised in that grouting pvc pipe entrance bottom End penetrates with pvc pipe in the plate of pre-buried pvc pipe prefabricated board.

3. according to the structure of the prefabricated one-way slabs entirely of the through ribbed described in claim 1, it is characterised in that grouting pvc pipe outlet bottom End penetrates with pvc pipe in the plate of pre-buried pvc pipe superimposed sheet.

4. according to the structure of the prefabricated one-way slabs entirely of the through ribbed described in claim 1, it is characterised in that insertion connection reinforcing bar is from pre- Bury pvc pipe in the plate of pvc pipe prefabricated board to insert in the plate of pre-buried pvc pipe superimposed sheet in pvc pipe, the both ends point of insertion connection reinforcing bar Other places pass through PVC in plate in the non-stitching portion port of pvc pipe in plate between pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet Insertion connection reinforcing bar in pipe connects with grouting material.

A kind of 5. assembly method of one of Claims 1-4 through ribbed structure of prefabricated one-way slabs entirely, it is characterised in that Comprise the following steps：

(1) pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet are placed at identical height level, pre-buried pvc pipe prefabricated board and The side bottom edge line of pre-buried pvc pipe superimposed sheet connects, PVC in the plate of pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet Pipe is in close contact in the same horizontal position, the grouting pvc pipe entrance of pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet Pvc pipe outlet be in the milk respectively positioned at the outside of pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet；

(2) connection reinforcing bar pvc pipe out of pre-buried pvc pipe prefabricated board plate will be inserted and insert PVC in the plate of pre-buried pvc pipe superimposed sheet Guan Zhong, the port of the non-stitching portion of pvc pipe in plugging plate, and by stitching portion encapsulation process, poured into successively from grouting pvc pipe entrance Grouting material, until grouting material overflows from the outlet of grouting pvc pipe, complete between pre-buried pvc pipe prefabricated board and pre-buried pvc pipe superimposed sheet Connection.