CN206157919U - Connected node of prefab - Google Patents

Abstract

The utility model belongs to the technical field of construction engineering, and discloses a connection node of a prefabricated part, a connection node of a prefabricated part, two prefabricated parts are closely spliced and butted, and the splicing ends of the two prefabricated parts are provided with connectors , the connecting parts are connected by bolts, and the splicing ends of the two prefabricated parts are provided with operation ports. During the assembly process of the prefabricated parts, after any one of the two prefabricated parts is in place, the other is hoisted to make the two close butt joints, and then the connecting parts embedded in the two prefabricated parts are respectively embedded in the two prefabricated parts through the operation port using bolts. Connected into a whole, in this way, the connection of prefabricated parts is realized, and the two form a whole to bear force together. The prefabricated parts of the utility model adopt close splicing butt joint, no need for cast-in-place concrete in the assembly process, cost saving, fast construction speed, short construction period, the prefabricated parts are connected as a whole by sleeves and connectors, increasing the connection of prefabricated parts Tensioning capacity to meet the architectural quality and technical performance of the building.

Description

A connection node for prefabricated parts

technical field

The utility model belongs to the technical field of construction engineering, in particular to a connection node of a prefabricated part.

Background technique

Compared with traditional reinforced concrete cast-in-place buildings, prefabricated buildings are undoubtedly a major technological advancement. The prefabricated components of prefabricated buildings are produced in a factory and assembled on site, so they can be standardized in the factory, with controllable quality, high efficiency and fast materials. Saving without waste, no environmental pollution at the production site and construction site. However, in the prior art, during the assembly process of prefabricated parts in prefabricated buildings, there are still nodes that need to be cast-in-situ, such as the connection between the shear wall and the floor. A cast-in-place layer is poured on the upper part of the slab. During the installation process, it is necessary to wait for the cast-in-place layer of the laminated slab to solidify before proceeding with the installation of prefabricated parts on this basis. This will seriously affect the construction speed and reduce the construction efficiency. On-site pouring must carry out operations such as formwork support and concrete pouring, which complicates the construction site, causes safety hazards and increases construction costs.

To sum up, there is an urgent need to develop a prefabricated connection node with fast construction speed, low cost and strong connection.

Utility model content

The purpose of the utility model is to provide a prefabricated connection node with fast construction speed, cost saving and firm connection.

The above purpose is achieved through the following technical solution: a connection node of a prefabricated part, two prefabricated parts are closely spliced and butt jointed, and the splicing ends of the two prefabricated parts are provided with connecting parts, and the connecting parts are connected by bolts. The splicing ends of the two prefabricated parts are provided with operation ports. During the prefabrication process of prefabricated parts, connectors are pre-embedded at the splicing ends, and operation ports are reserved where the connectors are set. During the assembly process of the prefabricated parts, after any one of the two prefabricated parts is in place, the other is hoisted to make the two close butt joints, and then the connecting parts embedded in the two prefabricated parts are respectively embedded in the two prefabricated parts through the operation port using bolts. Connected into a whole, in this way, the connection of prefabricated parts is realized, and the two form a whole to bear force together. The utility model is provided with an operation port at the splicing end of the two prefabricated parts, which is convenient for the connection between the connecting parts, and the two operation ports form a larger operation port at the splicing place, and the operation space is larger, which is more conducive to The operation and construction when the bolts are connected, and the mold for making the prefabricated part is unified, and the manufacturing process is more convenient. The prefabricated parts of the utility model adopt dense butt joint, no need to cast-in-situ concrete in the assembly process, cost saving, fast construction speed, short construction period, the prefabricated parts are connected into a whole by bolts and connectors, which increases the connection and tension capacity of the prefabricated parts , which is conducive to the transmission of force between the wall panels and meets the architectural quality and technical performance of the building.

Further, the connecting piece is provided with a penetration hole, and the bolt passes through the penetration hole to connect the connecting piece as a whole, and is tightened and fixed by a nut. In this way, the bolts are passed through the piercing holes, and then the bolts are tightened, so that the connecting parts are tightly connected as a whole, and the shear force is transmitted between the prefabricated parts through the connecting parts.

Further, the operation port is filled with slurry. Such setting, on the one hand, can solve the unsightly problem caused by the reserved operation port, on the other hand, when the slurry in the operation port is solidified, it can play the role of fixing the bolts and avoid the bolts from loosening under the influence of long service life or external force. Filling the slurry at this time does not affect the construction progress, and there is no need to wait for the slurry to harden before installing the next prefabricated node.

Further, SBS self-adhesive modified asphalt coils are arranged on the splicing surface of the prefabricated parts. Such setting can achieve a waterproof effect and effectively prevent water from leaking along the splicing surfaces of the prefabricated parts, especially when the prefabricated parts are external wall panels.

Further, a gap is provided on the side of the splicing end of the prefabricated part, and the gap is filled with waterproof sealant. Such arrangement can prevent water from entering the splicing surface of the second prefabricated part, thereby preventing water from leaking along the splicing surface.

Further, the connecting piece includes a connecting plate and anchoring legs arranged on the connecting plate. Such an arrangement can effectively increase the anchoring force of the connector in the prefabricated part, and improve the structural strength of the connection between the connector and the prefabricated part.

Further, the prefabricated parts are floor slabs and/or wall slabs.

Further, the splicing surface of the preform is embedded with an elastic waterproof body. During the production process of the prefabricated parts, the elastic waterproof body is embedded in the splicing surface of the prefabricated parts. Leakage along the joint face of the prefabricated part. Of course, since the prefabricated parts are densely assembled, the elastic waterproof body should not be too wide, and multiple elastic waterproof bodies can be embedded in the splicing surface of the prefabricated parts. Preferably, a groove can be provided on the contact surface between the prefabricated part and the elastic waterproof body, one side of the elastic waterproof body is embedded in the splicing surface of one of the prefabricated parts, and the other side is pressed into the groove corresponding to the splicing surface of the other prefabricated part, This can not only play a waterproof effect, but also does not affect the close-fitting of the prefabricated parts.

Further, a grouting groove is provided on the splicing surface of the prefabricated part, and the waterproof grout is poured into the grouting groove. In this way, when the prefabricated parts are assembled, the grouting tank is filled with waterproof slurry. When the waterproof slurry is hardened, a waterproof layer is formed on the splicing surface of the prefabricated parts, which can effectively prevent water from leaking along the splicing surface.

Further, there are waterproof steel plates on the sides of the splicing ends of the prefabricated parts, and adjacent waterproof steel plates are welded into a whole. So set, the waterproof steel plate at this time plays the role of sealing or blocking the splicing surface, which can effectively prevent water from leaking along the splicing surface. Of course, after the waterproof steel plate is welded, the welded part can be polished by a grinder to make it more beautiful.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model.

Fig. 1 and Fig. 2 are respectively the structural schematic diagrams of the connecting nodes of the prefabricated parts involved in an embodiment of the present invention;

Fig. 3 is a left view of the connector involved in Fig. 1;

Fig. 4 is a top view of the connector involved in Fig. 1;

Fig. 5 is a cross-sectional view of the A-A section of the connection node of the prefabricated element involved in Fig. 1 .

In the picture:

1 Prefabricated part 2 Connector 3 Bolt 4 Connecting plate

5 piercing hole 6 anchor leg 7 operation port 8 waterproof steel plate

9 Notch 10 Nut

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model. In addition, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments according to the descriptions in this document.

The embodiment of the present utility model is as follows, referring to Fig. 1 and Fig. 5, a connection node of a prefabricated part, two prefabricated parts 1 are closely spliced and butted, and the splicing ends of the two prefabricated parts 1 are provided with connectors 2, so The connecting parts 2 are connected by bolts 3 , and the splicing ends of the two prefabricated parts 1 are provided with operation ports 7 . The dense splicing butt joint described in the utility model means that no gap is left at the splicing part of the prefabricated part 1. It should be understood that the no gap mentioned here is to reserve a certain distance for grouting or pouring concrete in the prior art. As far as the technical solution is concerned, it does not mean that there are no gaps at the splicing part of the prefabricated part 1, but in the actual construction process, due to assembly errors or uneven splicing surfaces, small gaps often exist during the splicing process. Of course, in order to achieve the above effects, it is preferable that the splicing surface is smooth and flat. During the prefabrication process of the prefabricated part 1, the connecting part 2 is pre-embedded at its splicing end, and the operation port 7 is reserved at the place where the connecting part 2 is arranged. During the assembly process of the prefabricated part 1, after any one of the two prefabricated parts 1 is in place, the other is hoisted to make the two close butt joints, and then the bolts 3 are used to pre-embed the two prefabricated parts through the operation port 7. The connecting piece 2 in 1 is connected as a whole, so that the connection of the prefabricated part 1 is realized, and the two form a whole to bear force together. The utility model is equipped with an operation port 7 at the splicing end of the two prefabricated parts 1, which facilitates the connection between the connecting parts 2, and the two operation ports 7 form a larger operation port 7 at the splicing point, and the operation space is larger , which is more conducive to the operation and construction when the bolt 3 is connected to the connecting part 2, and at the same time, the mold for making the prefabricated part 1 is unified, and the manufacturing process is also simpler. The prefabricated part 1 of the utility model adopts close splicing butt joint, no need for cast-in-place concrete in the assembly process, cost saving, fast construction speed, and short construction period. 1 The tensioning ability of the connection is beneficial to the force transmission between the wall panels and meets the architectural quality and technical performance of the building.

On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, as shown in Figure 3, the connecting piece 2 is provided with a piercing hole 5, and the bolt 3 passes through the piercing hole 5 to connect the connecting piece 2 Into a whole, and tightened and fixed by nut 10. In this arrangement, the bolts 3 are passed through the piercing holes 5, and then the bolts 3 are tightened, so that the connecting pieces 2 are tightly connected as a whole, and the shearing force is transmitted between the prefabricated parts 1 through the connecting pieces 2.

On the basis of the above embodiments, in another embodiment of the present invention, the operation port 7 is filled with slurry. Such setting, on the one hand, can solve the unsightly problem caused by the reserved operation port 7, on the other hand, when the slurry in the operation port 7 solidifies, it can play the role of fixing the bolt 3, avoiding long service life or external force influence Loosen the lower bolt 3. Filling the slurry at this time does not affect the construction progress, and there is no need to wait for the slurry to harden before installing the next prefabricated part 1 node.

On the basis of the above embodiments, in another embodiment of the present invention, SBS self-adhesive modified asphalt coils are arranged on the splicing surface of the prefabricated part 1 . Such setting can achieve a waterproof effect and effectively prevent water from leaking along the joint surface of the prefabricated part 1, especially when the prefabricated part 1 is an exterior wall panel.

On the basis of the above embodiments, in another embodiment of the present invention, as shown in Fig. 1 and Fig. 2, a gap 9 is provided on the side of the splicing end of the prefabricated part 1, and the gap 9 is filled with waterproof sealant. Such an arrangement can prevent water from entering the splicing surface of the first preform 1 , thereby preventing water from leaking along the splicing surface.

On the basis of the above embodiments, in another embodiment of the present invention, as shown in FIGS. 1 to 4 , the connecting piece 2 includes a connecting plate 4 and an anchoring leg 6 arranged on the connecting plate 4 . Such an arrangement can effectively increase the anchoring force of the connector 2 in the prefabricated part 1, and improve the structural strength of the connection between the connector 2 and the prefabricated part 1.

On the basis of the above embodiments, in another embodiment of the present utility model, the prefabricated part 1 is a floor slab and/or a wall slab.

On the basis of the above-mentioned embodiments, in another embodiment of the present utility model, the splicing surface of the prefabricated part 1 is embedded with an elastic waterproof body. During the production process of the prefabricated part 1, the elastic waterproof body is embedded in the splicing surface of the prefabricated part 1, and when the prefabricated part 1 is tightly joined, the prefabricated part 1 tightly squeezes the waterproof elastic body on the splicing surface of the two parts, so that , can prevent water from leaking along the splicing surface of the prefabricated part 1. Certainly, since the prefabricated part 1 adopts dense jointing, the elastic waterproof body should not be too wide, and the joint surface of the prefabricated part 1 can be embedded with multiple elastic waterproof bodies. Preferably, a groove can be provided on the contact surface between the prefabricated part 1 and the elastic waterproof body, one side of the elastic waterproof body is embedded in the splicing surface of one of the prefabricated parts 1, and the other side is squeezed into the corresponding groove of the splicing surface of the other prefabricated part 1. In the groove, it can not only play a waterproof effect, but also not affect the close fitting of the prefabricated part 1.

On the basis of the above embodiments, in another embodiment of the present invention, a grouting groove is provided on the splicing surface of the prefabricated part 1, and the waterproof grout is poured into the grouting groove. In this way, when the prefabricated part 1 is assembled, the grouting tank is filled with waterproof slurry. When the waterproof slurry is hardened, a waterproof layer is formed on the joint surface of the prefabricated part 1, which can effectively prevent water from leaking along the joint surface.

On the basis of the above-mentioned embodiments, in another embodiment of the present invention, as shown in Fig. 2 , there are waterproof steel plates 8 on the side of the splicing end of the prefabricated part 1, and the adjacent waterproof steel plates 8 are welded into a whole. So set, the waterproof steel plate 8 at this time plays the role of closing or blocking the splicing surface, which can effectively prevent water from leaking along the splicing surface. Of course, after the waterproof steel plate 8 is welded, the welded part can be polished smooth by a grinder to make it more beautiful.

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

Claims (10)

1. A connection node of a prefabricated part, characterized in that two prefabricated parts are closely spliced butt-jointed, and the splicing ends of the two prefabricated parts are provided with connectors, and the connectors are connected by bolts, and the two prefabricated parts are connected by bolts. The splicing ends of the prefabricated parts are provided with operation ports. 2. The connecting node of the prefabricated part according to claim 1, characterized in that, the connecting piece is provided with a piercing hole, and the bolt passes through the piercing hole to connect the connecting piece as a whole, and is tightened by a nut fixed. 3. The connection node of the prefabricated part according to claim 2, characterized in that the operation opening is filled with slurry. 4. The connection node of the prefabricated part according to claim 3, characterized in that SBS self-adhesive modified asphalt coils are arranged on the splicing surface of the prefabricated part. 5 . The connection node of the prefabricated part according to claim 4 , wherein a gap is provided on the side of the splicing end of the prefabricated part, and the gap is filled with a waterproof sealant. 6 . 6 . The connection node of a prefabricated component according to any one of claims 1 to 5 , wherein the connection piece comprises a connection plate and an anchor leg arranged on the connection plate. 6 . 7. The connection node of prefabricated parts according to claim 6, characterized in that, the prefabricated parts are floor slabs and/or wall panels. 8. The connection node of prefabricated parts according to claim 1, characterized in that elastic waterproof bodies are embedded in the splicing surfaces of the prefabricated parts. 9 . The connection node of a prefabricated part according to claim 1 , wherein a grouting groove is provided on the splicing surface of the prefabricated part, and waterproof grout is poured into the grouting groove. 10. The connection node of the prefabricated part according to claim 1, characterized in that, the side of the splicing end of the prefabricated part is provided with a waterproof steel plate, and the adjacent waterproof steel plates are welded into a whole.