Vertical connecting structure for fabricated prefabricated parts

Abstract

The utility model provides a vertical connecting structure of an assembly type prefabricated part. The fabricated prefabricated part vertical connecting structure comprises a connecting rod piece, a first sleeve pre-buried in the lower-layer wall plate and a second sleeve pre-buried in the upper-layer wall plate, a pre-buried hole is formed between the two butted floor slabs, the axis of the first sleeve, the axis of the second sleeve and the axis of the pre-buried hole coincide, the connecting rod piece penetrates through the pre-buried hole, and the connecting rod piece is connected with the lower-layer wall plate. One end of the connecting rod piece is connected with the first sleeve, and the other end of the connecting rod piece is connected with the second sleeve. The connecting rod piece is connected with the first sleeve, the embedded hole and the second sleeve at the same time, the stability of the connecting structure is greatly improved, the anti-seismic requirement of a high-intensity area can be met, in addition, the embedded hole is formed between the two butt-joint floor slabs, in this way, when the floor slabs are hoisted, only half of the embedded holes need to be horizontally drawn close to the connecting rod piece, and the hoisting efficiency is greatly improved. And the installation work content is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a vertical connection structure for prefabricated components of an assembled building. Background Art

[0002] In prefabricated buildings, floor slabs and wall panels are both prefabricated in factories and then assembled on site. During assembly, the lower wall panels are installed first, and two floor slabs are butted, that is, the two butted floor slabs are hoisted into the lower wall panels, and the butt joint of the floor slabs is placed on the wall panel. Then, the upper wall panel is hoisted at the upper ends of the two butted floor slabs. The wall panel is placed at the butt joint of the floor slabs and fixed through connection nodes. The connection nodes between the wall panel and the floor slab generally adopt PK boxes, lead screws, nuts, embedded sleeves, etc. An embedded sleeve (precast and processed together with the wall panel in the factory) is arranged inside the upper end of the wall panel, and a PK box (precast and processed together with the wall panel in the factory) is arranged inside the lower end of the wall panel. Before hoisting the floor slab, a lead screw is installed in the embedded sleeve inside the lower wall panel first, and then the floor slab is hoisted so that the lead screw passes through the butt joint between the floor slabs and extends out of the outer side of the upper end of the floor slab. Then, the upper wall panel is hoisted so that the lead screw is inserted into the PK box in the wall panel, and then tightened with a nut. Finally, mortar is poured and filled in each gap and the PK box to complete the installation.

[0003] For high-intensity earthquake areas, that is, areas where the basic earthquake intensity is 7 degrees or above, the above-mentioned connection structure does not meet the seismic requirements of high-intensity earthquake areas. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vertical connection structure for prefabricated components of an assembled building, which can meet the seismic requirements of high-intensity earthquake areas.

[0005] The technical solution of the utility model is: a vertical connection structure for prefabricated components of an assembled building, including floor slabs, upper wall panels, lower wall panels, connecting rod members, a first sleeve embedded in the lower wall panel, and a second sleeve embedded in the upper wall panel. There are two butted floor slabs. The upper wall panel and the lower wall panel are respectively arranged on the upper and lower sides of the two butted floor slabs. There is an embedded hole between the two butted floor slabs. The axes of the first sleeve, the second sleeve, and the embedded hole coincide. The connecting rod member passes through the embedded hole, and one end of the connecting rod member is connected to the first sleeve, and the other end of the connecting rod member is connected to the second sleeve.

[0006] Preferably, a groove is provided on the upper surface of one side of the floor slab close to the butt joint. A third sleeve is embedded in the floor slab. A steel plate is arranged in the two butted grooves. A bolt is installed on the steel plate, and the bolt is threadedly connected to the third sleeve. The connecting rod member passes through the steel plate.

[0007] Preferably, a semi-circular opening is provided at the edge of the groove, and the semi-circular openings on the two butted grooves form the embedded hole.

[0008] Preferably, a mortar bedding layer is provided at the top of the lower wall panel and the bottom of the upper wall panel, and the mortar bedding layer is connected to the floor slab.

[0009] Preferably, a first grouting layer is provided between the first sleeve and the mortar bedding layer.

[0010] Preferably, a second grouting layer for fixing the connecting rod member is provided in the second sleeve, and a grouting channel communicating with the second sleeve is provided on the upper wall panel.

[0011] Preferably, the grouting channel horizontally penetrates through the upper wall panel.

[0012] Preferably, anchor bars are provided in the upper wall panel, and the lower ends of the anchor bars are connected to the second sleeve.

[0013] Preferably, heat insulation layers are provided in the floor slab, the upper wall panel and the lower wall panel.

[0014] Compared with the related art, the beneficial effects of the present utility model are as follows:

[0015] First, by connecting the connecting rod member to the first sleeve, the embedded hole and the second sleeve at the same time, the stability of the connection structure is greatly improved, and the seismic requirements of high-intensity areas can be met. In addition, an embedded hole is provided between two butt-jointed floor slabs, so that when the floor slabs are hoisted, only the respective half of the embedded hole needs to be horizontally approximated to the connecting rod member, greatly simplifying the installation work content;

[0016] Second, two butt-jointed floor slabs are connected into one body through steel plates, bolts and the third sleeve, which is not only convenient to operate, but also enhances the structural integrity;

[0017] Third, an anchor bar extending upward into the upper wall panel is connected to the upper end of the second sleeve, further enhancing the load-bearing capacity of the connection structure. Description of the Drawings

[0018] Figure 1 It is a schematic structural view when the vertical connection structure of the prefabricated component provided by the present utility model is installed;

[0019] Figure 2 It is a schematic structural view of a groove and a semi-circular opening provided on the floor slab.

[0020] In the drawings: 1. Lower wall panel; 2. Floor slab; 3. Upper wall panel; 4. Heat insulation layer; 5. First sleeve; 6. First grouting layer; 7. Mortar bedding layer; 8. Connecting rod member; 9. Second sleeve; 10. Embedded hole; 11. Groove; 12. Steel plate; 13. Bolt; 14. Anchor bar; 15. Semi-circular opening; 16. Third sleeve; 17. Second grouting layer; 18. Grouting channel. Detailed Embodiment

[0021] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. For the convenience of description, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure.

[0022] As Figure 1 shown, a vertical connection structure for an assembled precast member provided in this embodiment includes a floor slab 2, an upper wall panel 3, a lower wall panel 1, a first sleeve 5, a first grouting layer 6, a bedding layer 7, a connecting rod member 8, a second sleeve 9, a pre-embedded hole 10, a steel plate 12, a bolt 13, an anchor bar 14, a third sleeve 16, a second grouting layer 17, and a grouting channel 18. Two floor slabs 2 are butt-jointed, and the upper wall panel 3 and the lower wall panel 1 are respectively arranged on the upper and lower sides of the two floor slabs 2. As Figure 2 shown, a plurality of grooves 11 are provided at the edge of the floor slab 2, and the plurality of grooves 11 are arranged at intervals longitudinally of the floor slab 2. As Figure 1 shown, the grooves 11 penetrate through the upper surface of the floor slab 2 up and down. As Figure 2 shown, the grooves 11 penetrate through the edge of the floor slab 2. A semi-circular opening 15 is provided in the grooves 11. As Figure 1 shown, in two butt-jointed floor slabs 2, the two semi-circular openings 15 form the pre-embedded hole 10.

[0023] As Figure 1 shown, the first sleeve 5 is pre-embedded in the lower wall panel 1, and internal threads are provided in the first sleeve 5. The second sleeve 9 is pre-embedded in the upper wall panel 3, and the inside of the second sleeve 9 is hollow. The axes of the first sleeve 5, the second sleeve 9, and the pre-embedded hole 10 coincide, so that the connecting rod member 8 passes through the pre-embedded hole 10, and one end of the connecting rod member 8 is threadedly connected to the first sleeve 5, and the other end of the connecting rod member 8 extends into the second sleeve 9.

[0024] An anchor bar 14 is inserted at the upper end of the second sleeve 9, and the upper end of the anchor bar 14 extends into the upper wall panel 3. A grouting channel 18 communicating with the second sleeve 9 is provided on the upper wall panel 3, and the grouting channel 18 horizontally penetrates through the upper wall panel 3. Mortar is poured into the second sleeve 9 through the grouting channel 18 to fill the second grouting layer 17 for fixing the anchor bar 14 and the connecting rod member 8 in the second sleeve 9. Two or more grouting channels 18 can be provided in the height direction.

[0025] The lower wall panel 1 further is provided with a first grouting layer 6 and a bedding mortar layer 7. The first grouting layer 6 is located at the upper end of the first sleeve 5, and the first grouting layer 6 is in a frustum shape. The bedding mortar layer 7 is arranged at the upper end of the first grouting layer 6, and the bedding mortar layer 7 is connected to the lower surface of the floor slab 2.

[0026] A third sleeve 16 is embedded in the floor slab 2, and internal threads are provided in the third sleeve 16. A steel plate 12 is arranged in two butted grooves 11. A bolt 13 is installed on the steel plate 12, and the bolt 13 is in threaded connection with the third sleeve 16. The connecting rod member 8 passes through the steel plate 12. Before the steel plate 12 is installed, mortar can be poured in the embedded hole 10 to fix the connecting rod member 8. After the steel plate 12 is installed, mortar is filled in the groove 11.

[0027] The upper wall panel 3 is provided with a bedding mortar layer 7, and the bedding mortar layer 7 is connected to the mortar in the groove 11 at the lower surface of the second sleeve 9.

[0028] Heat preservation layers 4 are provided in the floor slab 2, the upper wall panel 3 and the lower wall panel 1.

[0029] During use, first hoist the lower wall panel 1 into place, then install the connecting rod member 8 in the first sleeve 5, pour mortar in the hole at the upper end of the first sleeve 5 in the lower wall panel 1 to form the first grouting layer 6, and then construct the bedding mortar layer 7 on the upper surface of the lower wall panel 1. Hoist two butted floor slabs 2, make the semi-circular openings 15 approach the connecting rod member 8 until the floor slabs 2 are installed in place. Grout in the embedded holes 10 respectively, install the steel plate 12 and the bolt 13. Then grout and fill in the groove 11. Hoist the upper wall panel 3, insert the second sleeve 9 onto the connecting rod member 8, and then grout into the second sleeve 9 through the grouting channel 18 to form the second grouting layer 17 and form the bedding mortar layer 7, and this bedding mortar layer 7 is connected to the mortar in the groove 11. Seal the grouting channel 18 to complete the installation of the precast components of this layer. Repeat the above steps to install the precast components of other floors.

[0030] The first sleeve 5, the second sleeve 9, the anchor bars 14 and the heat preservation layer 4 are processed during prefabrication in each precast component factory.

[0031] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. An assembled precast component vertical connection structure, comprising a floor slab (2), an upper wall panel (3) and a lower wall panel (1). Two floor slabs (2) are butt-jointed, and the upper wall panel (3) and the lower wall panel (1) are respectively arranged on the upper and lower sides of the two floor slabs (2). It is characterized in that, It further includes a connecting rod member (8), a first sleeve (5) embedded in the lower wall panel (1), and a second sleeve (9) embedded in the upper wall panel (3). There is an embedded hole (10) between two butt-jointed floor slabs (2). The axes of the first sleeve (5), the second sleeve (9), and the embedded hole (10) coincide. The connecting rod member (8) passes through the embedded hole (10), and one end of the connecting rod member (8) is connected to the first sleeve (5), and the other end of the connecting rod member (8) is connected to the second sleeve (9).

2. The vertical connection structure of the assembled precast component according to claim 1, characterized in that, On the upper surface of one side of the floor slab (2) close to the butt joint, there is a groove (11). A third sleeve (16) is embedded in the floor slab (2). A steel plate (12) is arranged in two butt-jointed grooves (11). A bolt (13) is installed on the steel plate (12), and the bolt (13) is threadedly connected to the third sleeve (16). The connecting rod member (8) passes through the steel plate (12).

3. The vertical connection structure of the prefabricated component according to claim 2, characterized in that, A semi-circular opening (15) is provided at the edge of the groove (11). The semi-circular openings (15) on two butt-jointed grooves (11) form the embedded hole (10).

4. The vertical connection structure of the prefabricated component according to claim 1, characterized in that, Mortar bedding layers (7) are provided at the top of the lower wall panel (1) and the bottom of the upper wall panel (3), and the mortar bedding layers (7) are connected to the floor slab (2).

5. The vertical connection structure of the prefabricated precast component according to claim 4, characterized in that, A first grouting layer (6) is provided between the first sleeve (5) and the mortar bedding layer (7).

6. The vertical connection structure of the assembled precast component according to claim 1, characterized in that, A second grouting layer (17) for fixing the connecting rod member (8) is provided in the second sleeve (9), and a grouting channel (18) communicating with the second sleeve (9) is provided on the upper wall panel (3).

7. The vertical connection structure of the prefabricated component according to claim 6, characterized in that, The grouting channel (18) horizontally penetrates through the upper wall panel (3).

8. The vertical connection structure of the prefabricated precast component according to claim 1, characterized in that, An anchor bar (14) is provided in the upper wall panel (3), and the lower end of the anchor bar (14) is connected to the second sleeve (9).

9. The vertical connection structure of the assembled precast component according to claim 1, characterized in that Insulation layers (4) are provided in the floor slab (2), the upper wall panel (3), and the lower wall panel (1).

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