Dry joint structure of prefabricated wall

Abstract

The application discloses a dry type connecting structure of a prefabricated wall, which comprises a first angle steel, a second angle steel, a first connecting steel plate and a second connecting steel plate, the first connecting steel plate is connected to the bending parts of the first angle steel and the second angle steel, and the first angle steel and the second angle steel are respectively arranged at the inner side and the outer side of the L-shaped joint of a prefabricated wall plate; the second connecting steel plate is in the shape of a 'n', and the second connecting angle steel is connected to the two sides of the first angle steel and the second angle steel and is perpendicular to the first angle steel and the second angle steel. The dry type connecting structure of the prefabricated wall adopts the above structure, the first angle steel and the second angle steel are respectively arranged at the inner side and the outer side of the L-shaped joint of the prefabricated wall plate, and two prefabricated wall plates which are vertically intersected can be effectively and quickly connected to one, the construction speed can be greatly accelerated while the structural safety and stability are ensured, no construction waste is generated, and the effect of green construction can be achieved.

Description

Technical Field

[0001] This invention relates to the field of precast wall technology, and in particular to a dry connection structure for precast walls. Background Technology

[0002] Prefabricated shear wall structures are integral structures formed by prefabricated components through reliable connection methods and by on-site cast-in-place concrete and cement-based grouting. Reliable connection nodes are key to ensuring the structural integrity and seismic resistance. Node connections mainly include beam-to-column connections, column-to-column connections, and horizontal and vertical wall-to-wall connections.

[0003] There are two types of vertical connection methods for prefabricated shear wall structures: (1) Dry connection means that no concrete needs to be poured on the construction site. All prefabricated components, embedded parts and connectors are prefabricated in the factory and connected by bolts or welding. (2) Wet connection means that the steel bars between two load-bearing components are connected to each other and the overall connection of the structure is achieved by pouring the joint, so that the joint is equivalent to cast-in-place.

[0004] Currently, most connections in prefabricated wall structures use wet connection methods. For L-shaped joints, wet connection methods are cumbersome to install on-site, and the reinforcing bars at the joints are prone to collision, making binding operations very difficult. To address these issues, dry connection methods directly connect the walls using bolts and other connecting components, resulting in shorter construction time and simpler operation. Summary of the Invention

[0005] The purpose of this invention is to provide a dry connection structure for precast walls, which solves the problems of cumbersome on-site construction of wet connection methods at L-shaped nodes, where the reinforcing bars at the nodes are very prone to collision and the binding operation is very difficult.

[0006] To achieve the above objectives, the present invention provides a dry connection structure for a precast wall, comprising a first angle steel, a second angle steel, a first connecting steel plate, and a second connecting steel plate. The first connecting steel plate is connected to the bend of the first angle steel and the second angle steel. The first angle steel and the second angle steel are respectively disposed on the inner and outer sides of the L-shaped node of the precast wall panel.

[0007] The second connecting steel plate is U-shaped, and the second connecting angle steel is connected to both sides of the first angle steel and the second angle steel and is perpendicular to the first angle steel and the second angle steel respectively.

[0008] Preferably, at least two bolt holes are provided on each side of the first angle steel and the second angle steel, and the first angle steel and the second angle steel are connected to the precast wall panel by bolts installed in the bolt holes.

[0009] Preferably, the bolt head is embedded in the bolt hole, and the end face of the bolt head is flush with the outer surfaces of the first angle steel and the second angle steel.

[0010] Preferably, the edges of both ends of the second connecting steel plate are flush with the edges of the first angle steel and the second angle steel.

[0011] Preferably, the second connecting steel plate is connected to the first angle steel and the second angle steel by eccentric bolts, and the second connecting steel plate, the first angle steel and the second angle steel are all provided with screw holes for the eccentric bolts.

[0012] Preferably, the dry connection structures of the prefabricated walls are connected to each other by a third connecting steel plate between the second connecting steel plates.

[0013] Preferably, the second connecting steel plate is threadedly connected to the third connecting steel plate.

[0014] Therefore, the dry connection structure of the precast wall of the present invention, which adopts the above-described structure, has the following technical effects:

[0015] (1) The first angle steel and the second angle steel are respectively set on the inner and outer sides of the L-shaped node of the precast wall panel, and the first connecting steel plate is connected to the bend of the first angle steel and the second angle steel to support the structure.

[0016] (2) A second connecting steel plate is set up. The second connecting steel plate is perpendicularly connected to the first angle steel and the second angle steel. The "U" shaped structure of the second connecting steel plate can better support the wall of the precast wall.

[0017] (3) It can effectively and quickly connect two vertically intersecting precast wall panels together. While ensuring structural safety and stability, it can also greatly speed up the construction process and will not generate construction waste, thus achieving the effect of green construction.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a dry connection structure for a prefabricated wall according to the present invention;

[0021] Figure 2 This is a schematic diagram of the dry connection structure installation of a precast wall according to the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of a dry connection structure for a prefabricated wall according to the present invention.

[0023] Figure Labels

[0024] 1. First angle steel; 2. Second angle steel; 3. First connecting steel plate; 4. Second connecting steel plate; 5. Bolt hole; 6. Precast wall panel; 7. Bolt. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Example 1

[0028] A dry connection structure for precast walls, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a first angle steel 1 and a second angle steel 2, with at least two bolt holes 5 on each side of the first angle steel 1 and the second angle steel 2. The first angle steel 1 and the second angle steel 2 are connected by a first connecting steel plate 3, which is connected to the bend of the first angle steel 1 and the second angle steel 2.

[0029] The first angle steel 1 and the second angle steel 2 are respectively set on the inner and outer sides of the L-shaped node of the precast wall panel 6, and the first angle steel 1 and the second angle steel 2 are respectively connected to the precast wall panel 6 through bolts 7 set in bolt holes 5. The bolt head of the bolt 7 is embedded in the bolt hole 5, and the end face of the bolt head is flush with the outer surface of the first angle steel 1 and the second angle steel 2.

[0030] The first angle steel 1 and the second angle steel 2 are located inside the precast wall panel 6 on one side and are connected by at least two second connecting steel plates 4, such as Figure 3 As shown, the position of the first connecting steel plate 3 is omitted to better illustrate the location of the second connecting steel plate 4. The second connecting steel plate 4 is perpendicularly connected to the first angle steel 1 and the second angle steel 2. The second connecting steel plate 4 is U-shaped, with its two side edges flush with the first angle steel 1 and the second angle steel 2, providing support for the precast wall panel 6. Its two ends are connected to the first angle steel 1 and the second angle steel 2 respectively via eccentric bolts. Positions for eccentric bolts are reserved on the first angle steel 1, the second angle steel 2, and the second connecting steel plate 4 for connection.

[0031] Example 2

[0032] A dry connection structure for a precast wall is similar to that in Embodiment 1, except that there are several connection structures between the precast wall panels 6. Each connection structure is fixedly connected to a third connection steel plate by connecting a second connection steel plate 4, as shown in Figure 3. Several screw holes are reserved on the second connection steel plate 4 to facilitate screwing with the third connection steel plate.

[0033] This invention discloses a dry connection structure for a precast wall. A first angle steel 1 and a second angle steel 2 are respectively installed on the inner and outer sides of the L-shaped node of the precast wall panel 6. A first connecting steel plate 3 is connected to the bend of the first angle steel 1 and the second angle steel 2, providing structural support. To further stabilize the structure, a second connecting steel plate 4 is provided. The second connecting steel plate 4 is perpendicularly connected to the first angle steel 1 and the second angle steel 2. The U-shaped structure of the second connecting steel plate 4 can better support the wall of the precast wall panel 6.

[0034] Therefore, the present invention adopts a dry connection structure for a precast wall with the above-mentioned structure, which can effectively and quickly connect two vertically intersecting precast wall panels together. While ensuring structural safety and stability, it can also greatly speed up the construction process and generate no construction waste, thus achieving the effect of green construction.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A dry connection structure of a prefabricated wall, characterized by: The first angle steel, the second angle steel, the first connecting steel plate and the second connecting steel plate, the first connecting steel plate is connected to the bending part of the first angle steel and the second angle steel, the first angle steel and the second angle steel are respectively arranged at the inner side and the outer side of the L-shaped joint of the prefabricated wallboard; The second connecting steel plate is in the shape of "N", the second connecting steel plate is connected to the two sides of the first angle steel and the second angle steel and is perpendicular to the first angle steel and the second angle steel respectively; The two end edges of the second connecting steel plate are flush with the edges of the first angle steel and the second angle steel; The second connecting steel plate is connected to the first angle steel and the second angle steel through eccentric bolts, the second connecting steel plate, the first angle steel and the second angle steel all reserve screw holes for the eccentric bolts; The dry connection structures of several prefabricated walls are connected through the third connecting steel plates between the second connecting steel plates; The second connecting steel plate is threadedly connected to the third connecting steel plate.

2. A dry connection structure of a prefabricated wall according to claim 1, characterized in that: Two sides of the first angle steel and the second angle steel are respectively provided with at least two bolt holes, the first angle steel and the second angle steel are connected to the prefabricated wallboard through bolts installed in the bolt holes.

3. A dry connection structure of a prefabricated wall according to claim 2, characterized in that: The bolt head of the bolt is embedded in the bolt hole, and the end face of the bolt head is flush with the outer surface of the first angle steel and the second angle steel.

Images