A connection device for a single independent shear wall and a prefabricated staircase

Abstract

The utility model discloses a connection device between a single-piece independent shear wall and a prefabricated staircase, which is used for connecting a shear wall body with a first groove and a prefabricated staircase body with a second groove. The connection device includes a first connection member, a second connection member and a connection plate. One end of the first connection member is embedded in the shear wall body, and the other end extends horizontally into the first groove. The second connection member is embedded in the prefabricated staircase body, and the other end extends upward into the second groove. One end of the connection plate is connected to one end of the first connection member extending into the first groove, and the other end is connected to one end of the second connection member extending into the second groove. After the prefabricated staircase body is hoisted in place, the utility model is connected to the first connection member embedded in the shear wall body and the second connection member embedded in the prefabricated staircase body through the connection plate, so as to facilitate the hoisting of the prefabricated staircase body and provide out-of-plane constraints for the shear wall body.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a connecting device for a single independent shear wall and a prefabricated staircase. Background Art

[0002] Due to the need for lighting, stairwells usually have windows at the rest platforms at both ends of the stairs, thereby dividing the middle shear wall into a single-shaped shear wall. When the stairwell is located at the side span of the building, there is no floor connection outside the plane of the single-shaped shear wall, forming a single independent shear wall.

[0003] The single-piece independent shear wall lacks restraint support outside the plane, and its out-of-plane force and overall stability are problematic. The traditional solution is to anchor the distribution reinforcement of the stairs into the shear wall, making the stairs an out-of-plane support of the single-piece independent shear wall to ensure its safety.

[0004] With the country's vigorous promotion and the inherent demand of the construction industry towards green, low-carbon transformation and sustainable development, a large number of building structures have adopted prefabricated concrete structures; in order to meet the assembly rate requirements, prefabricated stairs are mostly used in prefabricated concrete structures. However, if the prefabricated stairs are connected to the shear wall by extending their horizontal distribution reinforcement to anchor them in the shear wall, it will affect the lifting of the prefabricated stairs and cause lifting inconvenience; therefore, the single-piece independent shear wall at this location cannot use traditional methods to solve the out-of-plane constraint problem. Utility Model Content

[0005] The purpose of the utility model is to provide a connection device between a single independent shear wall and a prefabricated staircase, which can be connected to the shear wall after the prefabricated staircase is hoisted into place, so as to facilitate the hoisting of the prefabricated staircase and provide out-of-plane constraints for the single independent shear wall at the same time, so as to solve the problem that the single independent shear wall proposed in the above background technology cannot solve the out-of-plane constraints by traditional methods.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connecting device for a single independent shear wall and a prefabricated staircase is used for connecting a shear wall body with a first groove and a prefabricated staircase body with a second groove. The connecting device comprises a first connecting member, a second connecting member and a connecting plate. One end of the first connecting member is embedded in the shear wall body, and the other end extends horizontally into the first groove. The second connecting member is embedded in the prefabricated staircase body, and the other end extends upward into the second groove. One end of the connecting plate is connected to one end of the first connecting member extending into the first groove, and the other end is connected to one end of the second connecting member extending into the second groove.

[0008] Preferably, the connecting piece is L-shaped.

[0009] Preferably, the connecting piece includes a side connecting section and a top connecting section vertically connected to the side connecting section, and the top connecting section is provided with a bolt hole.

[0010] Preferably, the first connecting member includes a first anchor plate and a first anchor bar, a plurality of the first anchor bars embedded in the shear wall body are fixedly connected to the side surface of the first anchor plate, and the first anchor plate is clamped with the side connection section of the connecting piece.

[0011] Preferably, the first connecting member comprises a first U-shaped steel plate, the first U-shaped steel plate is connected to the side of the first anchor plate facing away from the first anchor bar, and an insertion slot for inserting the side connecting section is provided between the first U-shaped steel plate and the first anchor plate.

[0012] Preferably, the second connecting member includes a second anchor plate and second anchor bars, the bottom surface of the second anchor plate is fixedly connected with a plurality of the second anchor bars embedded in the prefabricated staircase body, and the top connecting section of the connecting piece overlaps the top surface of the second anchor plate.

[0013] Preferably, the second connecting member comprises a screw rod and a nut, the bottom end of the screw rod passes through a bolt hole of the top connection section and is vertically connected to the top surface of the second anchor plate, and the nut is threadedly connected to one end of the screw rod passing upward through the bolt hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. After the prefabricated staircase body is hoisted in place, it is connected to the first connecting piece embedded in the shear wall body and the second connecting piece embedded in the prefabricated staircase body through the connecting piece, so as to facilitate the hoisting of the prefabricated staircase body and provide out-of-plane constraints for the shear wall body in the horizontal direction, and do not excessively restrict the vertical displacement of the prefabricated staircase body while providing horizontal constraints;

[0016] 2. After the first connector and the second connector are connected and fixed by the connecting piece, mortar is poured into the first groove and the second groove. The mortar is filled in the first groove and the second groove to form a mortar layer. The mortar layer is flush with the side surface of the shear wall body and the top surface of the prefabricated staircase. Therefore, there is no on-site welding or concrete pouring work, which meets the needs of building industrialization and green construction;

[0017] 3. The first connecting member, the second connecting member and the connecting plate do not protrude from the surface of the shear wall body or the prefabricated staircase body. They are well hidden after mortar pouring, meeting the aesthetic requirements of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the shear wall body and the prefabricated staircase body of the utility model;

[0019] Figure 2It is a side view of the connection device of the utility model between a single independent shear wall and a prefabricated staircase;

[0020] Figure 3 It is a top view of the connection device of the single independent shear wall and the prefabricated staircase of the utility model;

[0021] Figure 4 It is a side view of the first connecting member of the utility model;

[0022] Figure 5 It is a top view of the first connecting member of the utility model;

[0023] Figure 6 It is a front view of the first connecting member of the utility model;

[0024] Figure 7 It is a side view of the second connecting member of the utility model;

[0025] Figure 8 It is a top view of the second connecting member of the utility model;

[0026] Fig. 9 It is a side view of the connecting piece of the utility model;

[0027] Fig.10 It is a top view of the connecting piece of the utility model.

[0028] The markings in the figure correspond to the following:

[0029] 1. Shear wall body; 1-1. First groove; 1-2. First connecting piece; 1-2a. First anchor plate; 1-2b. First anchor bar; 1-2c. First U-shaped steel plate; 2. Prefabricated staircase body; 2-1. Second groove; 2-2. Second connecting piece; 2-2a. Second anchor plate; 2-2b. Second anchor bar; 2-2c. Screw; 2-2d. Nut; 3. Connecting piece; 3-a. Bolt hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-3A connecting device for a single independent shear wall and a prefabricated staircase is used for connecting a shear wall body 1 with a first groove 1-1 and a prefabricated staircase body 2 with a second groove 2-1. The connecting device comprises a first connecting member 1-2, a second connecting member 2-2 and a connecting piece 3, wherein one end of the first connecting member 1-2 is embedded in the shear wall body 1, and the other end extends horizontally into the first groove 1-1; the second connecting member 2-2 is embedded in the prefabricated staircase body 2, and the other end extends upward into the second groove 2-1; one end of the connecting piece 3 is connected to one end of the first connecting member 1-2 extending into the first groove 1-1, and the other end is connected to one end of the second connecting member 2-2 extending into the second groove 2-1.

[0032] After the prefabricated staircase body 2 is hoisted into place, it is connected to the first connecting member 1-2 embedded in the shear wall body 1 and the second connecting member 2-2 embedded in the prefabricated staircase body 2 through the connecting plate 3, so as to facilitate the hoisting of the prefabricated staircase body 2 while providing out-of-plane constraints for the shear wall body 1 in the horizontal direction, and not excessively restricting the vertical displacement of the prefabricated staircase body 2 while providing horizontal constraints.

[0033] See also Figure 2 as well as Figure 9-10 , the connecting piece 3 is L-shaped. The connecting piece 3 includes a side connecting section and a top connecting section vertically connected to the side connecting section, and the top connecting section is provided with a bolt hole 3-a. In this embodiment, the connecting piece 3 is an integrated structure, formed by bending a steel plate, and the side connecting section and the top connecting section can also be welded to form the connecting piece 3.

[0034] See also Figure 2 as well as Figure 4-6 The first connecting member 1-2 includes a first anchor plate 1-2a and a first anchor bar 1-2b. The first anchor plate 1-2a is fixedly connected to a plurality of first anchor bars 1-2b pre-buried in the shear wall body 1. The first anchor plate 1-2a is clamped with the side section of the connecting piece 3. Figure 4-6 The first connecting member 1-2 includes a first U-shaped steel plate 1-2c, which is connected to the side of the first anchor plate 1-2a away from the first anchor bar 1-2b, and there is a slot between the first U-shaped steel plate 1-2c and the first anchor plate 1-2a for inserting the side connecting section, and the size of the slot is set according to the specifications of the connecting piece 3.

[0035] See also Figure 2-3 as well as Figure 7-8The second connecting member 2-2 includes a second anchor plate 2-2a and a second anchor bar 2-2b. The bottom surface of the second anchor plate 2-2a is fixedly connected with a plurality of second anchor bars 2-2b pre-buried in the prefabricated staircase body 2. The top connection section of the connecting plate 3 overlaps the top surface of the second anchor plate 2-2a. The second connecting member 2-2 includes a screw rod 2-2c and a nut 2-2d. The bottom end of the screw rod 2-2c passes through the bolt hole 3-a of the top connection section and is vertically connected to the top surface of the second anchor plate 2-2a. The nut 2-2d is screwed to one end of the screw rod 2-2c that passes upward through the bolt hole 3-a.

[0036] When installing the shear wall body 1 and the prefabricated stair body 2, the first connecting member 1-2 is pre-embedded in the shear wall body 1 in advance, so that the first anchor plate 1-2a and the first U-shaped steel plate 1-2c of the first connecting member 1-2 are exposed in the first groove 1-1; at the same time, the second connecting member 2-2 is also pre-embedded in the prefabricated stair body 2 in advance, so that the second anchor plate 2-2a and the screw 2-2c of the second connecting member 2-2 are exposed in the second groove 2-1.

[0037] When connecting the shear wall body 1 and the prefabricated staircase body 2 through the connecting piece 3, first hoist the prefabricated staircase body 2 to the corresponding position, then insert the side section of the connecting piece 3 into the slot of the first U-shaped steel plate 1-2c, align the bolt hole 3-a of the top section of the connecting piece 3 with the screw 2-2c for the screw 2-2c to extend, and screw the nut 2-2d in after the screw 2-2c passes upward through the bolt hole 3-a to fix the top section of the connecting piece 3 on the second anchor plate 2-2a. After the first connecting member 1-2 and the second connecting member 2-2 are connected and fixed by the connecting piece 3, mortar is poured into the first groove 1-1 and the second groove 2-1, and the mortar fills the first groove 1-1 and the second groove 2-1 to form a mortar layer, thereby completing the connection between the shear wall body 1 and the prefabricated staircase body 2.

[0038] See also Figure 2-3 In this embodiment, the mortar layer is flush with the side surface of the shear wall body 1 and the top surface of the prefabricated staircase, so there is no on-site welding or concrete pouring work, which meets the needs of building industrialization and green construction; and the first connecting member 1-2, the second connecting member 2-2 and the connecting piece 3 do not protrude to the surface of the shear wall body 1 or the prefabricated staircase body 2, and the mortar is well hidden after pouring, which meets the building's demand for aesthetics.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection device for a single independent shear wall and a prefabricated staircase, used for connecting a shear wall body (1) with a first groove (1-1) reserved therein and a prefabricated staircase body (2) with a second groove (2-1) reserved therein, characterized in that: The connection device comprises a first connection member (1-2), a second connection member (2-2) and a connection plate (3); one end of the first connection member (1-2) is pre-buried in the shear wall body (1), and the other end extends horizontally into the first groove (1-1); the second connection member (2-2) is pre-buried in the prefabricated staircase body (2), and the other end extends upward into the second groove (2-1); one end of the connection plate (3) is connected to one end of the first connection member (1-2) extending into the first groove (1-1), and the other end is connected to one end of the second connection member (2-2) extending into the second groove (2-1).

2. The connecting device of a single independent shear wall and a prefabricated staircase according to claim 1 is characterized in that: The connecting piece (3) is L-shaped.

3. The connection device of a single independent shear wall and a prefabricated staircase according to claim 1, characterized in that: The connecting piece (3) comprises a side connecting section and a top connecting section vertically connected to the side connecting section, and the top connecting section is provided with a bolt hole (3-a).

4. The connection device of a single independent shear wall and a prefabricated staircase according to claim 3 is characterized in that: The first connecting member (1-2) comprises a first anchor plate (1-2a) and a first anchor bar (1-2b); a plurality of the first anchor bars (1-2b) pre-buried in the shear wall body (1) are fixedly connected to the side of the first anchor plate (1-2a); and the first anchor plate (1-2a) is clamped with a side connection section of the connecting plate (3).

5. The connection device of a single independent shear wall and a prefabricated staircase according to claim 4, characterized in that: The first connecting member (1-2) comprises a first U-shaped steel plate (1-2c), the first U-shaped steel plate (1-2c) being connected to the side of the first anchor plate (1-2a) away from the first anchor bar (1-2b), and an insertion slot for inserting a side connection section is provided between the first U-shaped steel plate (1-2c) and the first anchor plate (1-2a).

6. The device for connecting a single independent shear wall and a prefabricated staircase according to claim 3, characterized in that: The second connecting member (2-2) comprises a second anchor plate (2-2a) and a second anchor bar (2-2b); a plurality of second anchor bars (2-2b) pre-buried in the prefabricated staircase body (2) are fixedly connected to the bottom surface of the second anchor plate (2-2a); and a top connection section of the connecting plate (3) overlaps the top surface of the second anchor plate (2-2a).

7. The connection device of a single independent shear wall and a prefabricated staircase according to claim 6, characterized in that: The second connecting member (2-2) comprises a screw rod (2-2c) and a nut (2-2d); the bottom end of the screw rod (2-2c) passes through the bolt hole (3-a) of the top connection section and is vertically connected to the top surface of the second anchor plate (2-2a); the nut (2-2d) is screwed to one end of the screw rod (2-2c) that passes through the bolt hole (3-a) upward.

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