Full-prefabricated stair connecting joint

Abstract

The utility model provides a full-prefabricated stair connecting node. The fully-prefabricated stair connecting joint is used for connecting a stair, rest bedplates and a wall plate, the multiple rest bedplates are arranged on the wall plate from bottom to top, the stair is connected between every two adjacent rest bedplates, the cross section of each rest bedplate is rectangular, a vertical plane A is formed on the outer surface of each rectangular rest bedplate, and the vertical plane A is connected with the wall plate. Vertical planes A are arranged on the outer surfaces of the two ends of the staircase, vertical planes B are arranged on the outer surfaces of the two ends of the staircase, a plurality of installation holes are formed in the staircase, the installation holes are through in the width direction of the staircase, steel bars are arranged in the installation holes, the steel bars stretch out of the outer side of the staircase and are inserted into the wallboards, and the vertical planes A are attached to the vertical planes B. According to the utility model, the stress of the staircase is transmitted to the wallboards through the steel bars, and the wallboards share the load of the staircase, so that the stability and reliability of staircase installation are effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a fully prefabricated staircase connection node. Background Art

[0002] In the fully prefabricated system, the prefabricated landing slabs and prefabricated stairs are designed with a protruding structure at the end of the landing slabs to ensure structural stress and facilitate installation. The protruding structure is a bottom protrusion in the thickness direction of the landing slabs. Similarly, the ends of the stairs are also designed with a protruding structure, which is a top protrusion in the thickness direction of the stairs. The above protrusions all extend horizontally. During installation, the two protruding parts overlap each other. This protruding special-shaped structure makes the mold and reinforcement structure of the prefabricated components more complicated, increases the difficulty of prefabrication of landing slabs and stairs, and increases the mold cost. Utility Model Content

[0003] The utility model aims to provide a fully prefabricated staircase connection node, which eliminates the irregular shapes of landing plates and stairs and reduces the difficulty of prefabrication of landing plates and stairs while ensuring the stability of the installation structure.

[0004] The technical solution of the utility model is: a fully prefabricated staircase connection node, used for connecting stairs, landing panels and wall panels, the landing panels are provided with multiple ones on the wall panels from bottom to top, the stairs are connected between two adjacent landing panels, the cross-section of the landing panels is rectangular, the outer surface of the rectangular landing panels forms a vertical plane A, the outer surfaces of the two ends of the stairs are provided with vertical planes B, a plurality of mounting holes are arranged in the stairs, the mounting holes are through along the width of the stairs, steel bars are provided in the mounting holes, the steel bars extend out of the stairs and are inserted into the wall panels, and the vertical plane A fits with the vertical plane B.

[0005] Preferably, each of the mounting holes is connected to a grouting hole that vertically penetrates the staircase, and mortar is provided in the grouting hole.

[0006] Preferably, at least two grouting holes are provided on each of the mounting holes.

[0007] Preferably, one mounting hole is provided in every other step.

[0008] Preferably, both ends of the steel bar extend out of the outside of the staircase and are inserted into the wall panel.

[0009] Preferably, embedded parts are provided at both ends of the stairs, and the embedded parts include a first connecting part and a second connecting part, the first connecting part is embedded in the stairs, the second connecting part is placed at the upper end of the stairs, and one end of the second connecting part is connected to the first connecting part, and the other end extends out of the outside of the stairs and overlaps with the rest board at the corresponding position.

[0010] Preferably, the upper surface of the second connecting member is flush with the upper surface of the landing board and the upper surface of the stairs.

[0011] Preferably, the first connecting member is a round steel enclosed in a rectangular shape, and the second connecting member is a steel plate, on which at least two round steels are spaced apart.

[0012] Preferably, at least two embedded parts are arranged at intervals in the width direction of the stairs.

[0013] Compared with the related art, the beneficial effects of the utility model are:

[0014] First, the utility model optimizes the connection node structure of the stairs and landing board, so that the landing board and the stairs can transfer the force of the stairs to the wall board through the steel bars without the special-shaped structure and only have two vertical planes to fit the connection, so that the wall board shares the load of the stairs, effectively ensuring the stability and reliability of the stair installation;

[0015] Second, the utility model connects the staircase and the landing board by means of additional embedded parts, which is conducive to accurate positioning of the staircase during hoisting and ensures installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the fully prefabricated staircase connection nodes provided by the utility model arranged in the staircase;

[0017] Figure 2 is a cross-sectional schematic diagram of the staircase;

[0018] Figure 3 for Figure 2 The C-direction schematic diagram in FIG.

[0019] Figure 4 A schematic diagram of the connection structure of the fully prefabricated staircase connection nodes provided by the utility model in the staircase, landing board and wall board;

[0020] Figure 5 This is a cross-sectional diagram of the connection between the stairs and the wall panel.

[0021] In the attached drawings: 1. Stairs; 11. Installation holes; 12. Grouting holes; 2. Rest plates; 3. Wall panels; 4. Embedded parts; 41. First connecting parts; 42. Second connecting parts; 5. Rebars. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0023] like Figure 4 As shown, the fully prefabricated staircase connection node provided in this embodiment is used for connecting the staircase 1, the landing board 2, and the wall board 3. The landing board 2 is provided with a plurality of landing boards 2 from bottom to top on the wall board 3, and the staircase 1 is connected between two adjacent landing boards 2. Each staircase 1 has a wall board 3 (such as Figure 5 shown).

[0024] like Figure 4 As shown, the end of the rest plate 2 eliminates the special shape (protruding structure) and is improved into a structure with a rectangular cross section. A vertical plane A is formed on the outer surface of the rectangular rest plate 2.

[0025] like Figure 1 As shown, vertical planes B are provided on the outer surfaces of both ends of the staircase 1. A plurality of mounting holes 11 are arranged in the staircase 1, and the plurality of mounting holes 11 are arranged on the length X of the staircase 1. The mounting holes 11 are through the width Y of the staircase 1. Figure 2 As shown, the bottom step and the top step are provided with the mounting hole 11, and the rest are provided with one mounting hole 11 in every other step. Each mounting hole 11 is connected with a grouting hole 12 which vertically penetrates the staircase 1 upward. Figure 3 As shown, two mounting holes 11 are arranged at intervals along the width Y on each mounting hole 11 .

[0026] like Figure 1 As shown, embedded parts 4 are provided at both ends of the staircase 1. Figure 1 , Figure 3 As shown, two embedded parts 4 are arranged at intervals in the width direction Y of the staircase 1. Figure 2 As shown, the embedded part 4 includes a first connecting part 41 and a second connecting part 42. The first connecting part 41 is embedded in the staircase 1, and the second connecting part 42 is placed at the upper end of the staircase 1. The upper surface of the second connecting part 42 is flush with the upper surface of the landing plate 2 and the upper surface of the staircase 1. The first connecting part 41 is a round steel enclosed in a rectangular shape, and the second connecting part 42 is a steel plate. One end of the second connecting part 42 is connected to the first connecting part 41, and the other end extends out of the staircase 1 and overlaps the landing plate 2 at the corresponding position (such as Figure 4 Two round steel bars (as shown) are arranged at intervals on the steel plate. Figure 3 shown).

[0027] like Figure 4 , Figure 5As shown, during installation, the second connecting member 42 is first placed on the corresponding landing board 2. At this time, the mounting hole 11 of the staircase 1 is aligned with the hole on the wall panel 3. Then, the steel bar 5 is inserted into the mounting hole 11, and the staircase 1 is connected to the two wall panels 3 through the steel bar 5. Finally, concrete is poured into the mounting hole 11 through the grouting hole 12, and the concrete simultaneously fills the grouting hole 12 to form a structure as shown in FIG. Figure 5 The connection structure shown hereby forms the wall panel 3 and the staircase 1 into a whole. The steel bars 5 mainly play a shearing role and form a grout anchor structure after grouting. The embedded parts 4 are used for initial positioning during on-site hoisting, so that the prefabricated staircase 1 can be avoided from being supported on site.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fully prefabricated staircase connection node, used for connecting stairs, landing plates and wall panels, wherein the landing plates are provided on the wall panels from bottom to top in multiple numbers, and the stairs are connected between two adjacent landing plates, characterized in that: The cross-section of the resting platform is rectangular, and a vertical plane A is formed on the outer surface of the rectangular resting platform. Vertical planes B are provided on the outer surfaces of both ends of the stairs. A plurality of mounting holes are arranged in the stairs, and the mounting holes pass through along the width of the stairs. Steel bars are provided in the mounting holes, and the steel bars extend out of the outside of the stairs and are inserted into the wall panels. The vertical plane A is in contact with the vertical plane B.

2. The fully prefabricated staircase connection node according to claim 1, characterized in that: Each of the mounting holes is connected to a grouting hole which vertically penetrates the staircase, and mortar is arranged in the grouting hole.

3. The fully prefabricated staircase connection node according to claim 2, characterized in that: At least two grouting holes are arranged on each of the mounting holes.

4. The fully prefabricated staircase connection node according to claim 1, characterized in that: One mounting hole is arranged in every other step.

5. The fully prefabricated staircase connection node according to claim 1, characterized in that: Both ends of the steel bar extend out of the outside of the staircase and are inserted into the wall panel.

6. The fully prefabricated staircase connection node according to claim 1, characterized in that: Embedded parts are provided at both ends of the stairs, and the embedded parts include a first connecting part and a second connecting part. The first connecting part is embedded in the stairs, and the second connecting part is placed at the upper end of the stairs. One end of the second connecting part is connected to the first connecting part, and the other end extends out of the outside of the stairs and overlaps with the resting board at the corresponding position.

7. The fully prefabricated staircase connection node according to claim 6, characterized in that: The upper surface of the second connecting member is flush with the upper surface of the landing board and the upper surface of the stairs.

8. The fully prefabricated staircase connection node according to claim 6, characterized in that: The first connecting member is a round steel bar enclosed in a rectangular shape, and the second connecting member is a steel plate, on which at least two round steel bars are spaced apart.

9. The fully prefabricated staircase connection node according to claim 6, characterized in that: At least two embedded parts are arranged at intervals in the width direction of the stairs.

Images