Fabricated wall structure and construction method thereof

Abstract

The invention discloses a fabricated wall body structure which comprises wall body components and an inter-wall column, the two wall body components are symmetrically installed on the two sides of the inter-wall column in the width direction, two female grooves are symmetrically formed in the inter-wall column in the width direction, and two male connecting bodies are symmetrically formed in the wall body components in the width direction; the wall column is designed to be in butt joint with the two adjacent wall components, the wall components and the wall column are connected in a male-female mode, the connecting ribs of the wall components are inserted into the inner cavity grooves of the wall column, solidification connection is formed by pouring cement paste into the inner cavity grooves, and therefore the wall components and the wall column are connected in a butt joint mode. The sealing cavity is formed during male and female connection, cement paste enters the sealing cavity while grouting is conducted on the inner cavity groove, a reliable joint sealing layer can be formed after hardening, and the joint sealing problem can be effectively solved while the reliable wall connection problem is solved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and more specifically, to a prefabricated wall structure and its construction method. Background Technology

[0002] Prefabricated building structures refer to building structures assembled from precast concrete components through reliable connection methods. Prefabricated buildings adopt standardized design, factory production and assembly construction, which have advantages such as reducing on-site operations, shortening the construction period, improving project quality and reducing energy consumption, and are currently widely promoted and applied.

[0003] In prefabricated building structures, the design and construction of wall structures are crucial aspects. The walls of prefabricated buildings are assembled from multiple wall components. The splicing positions of adjacent wall components present technical challenges such as connection reliability and joint sealing. How to rationally design the wall structure to solve these technical challenges has become a key focus of continuous research for prefabricated building companies, and this case study was born from this. Summary of the Invention

[0004] The purpose of this invention is to address the needs of the prior art by providing a prefabricated wall structure and its construction method. This invention designs inter-wall columns to connect two adjacent wall components. The wall components and inter-wall columns are connected by a male-female joint. The connecting ribs of the wall components are inserted into the inner cavity groove of the inter-wall column. A solidified connection is formed by injecting cement grout into the inner cavity groove. This invention creates a sealed cavity in the male-female connection. While the inner cavity groove is being grouted, the cement grout also enters the sealed cavity. After hardening, a reliable joint sealing layer is formed. This invention solves the problem of reliable wall connection while also effectively solving the problem of joint sealing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prefabricated wall structure includes wall components and wall columns. Two wall components are symmetrically installed on both sides of the wall column in the width direction. The wall column has two female grooves symmetrically opened in the width direction. The wall components have two male connectors symmetrically formed in the width direction. The wall components and the wall columns are connected by inserting the male connectors into the female grooves.

[0007] Furthermore, an inner cavity groove is formed in the center of the wall column, and the inner cavity groove is vertically formed along the height direction of the wall column. A row of connecting ribs is formed on the outer edge of the male connector. The row of connecting ribs is evenly distributed along the height direction of the male connector and extends out of the outer edge of the male connector. A row of through holes is formed on both side walls of the inner cavity groove in the width direction of the wall column. The through holes correspond one-to-one with the connecting ribs. The connecting ribs are inserted into the inner cavity groove by inserting the male connector into the female groove.

[0008] Furthermore, after insertion, a sealing cavity is formed between the male connector and the female groove. The male connector has a first inclined surface, and the female groove has a second inclined surface. The first inclined surface and the second inclined surface form an angle, and the sealing cavity gradually decreases in size at the angle formed by the first inclined surface and the second inclined surface.

[0009] Furthermore, the diameter of the through hole is larger than the outer side of the connecting rib, and the sealing cavity and the inner cavity groove are connected through the through hole.

[0010] Furthermore, the male connector has two symmetrical outward protrusions in the thickness direction of the wall component, and the female groove has two symmetrical inward protrusions in the thickness direction of the wall column. A set of the outward and inward protrusions on the same side interlock and splice with each other.

[0011] Furthermore, a set of the outer and inner protruding edges are spliced ​​together to form a pin hole. The pin hole is opened along the height direction of the wall component. The pin hole is square and a square strip-shaped pin is fitted into the pin hole.

[0012] A construction method for a prefabricated wall structure, which utilizes a prefabricated wall structure, includes the following steps:

[0013] S1: Erect and fix the inter-wall column;

[0014] S2: Vertically hoist a wall component to one side of the wall column in the width direction, move the wall component horizontally so that the male connector is inserted into the female groove of the wall column, and the connecting bar is inserted into the inner cavity groove accordingly.

[0015] S3: Drive a pin into the pin hole formed by the connection between the male and female parts to pre-connect the wall components and the inter-wall column;

[0016] S4: Repeat steps S and S to pre-connect another wall component to the other side of the wall column width direction;

[0017] S5: Cement grout is poured into the inner cavity groove. Under the effect of the through-hole connection, the cement grout also enters the sealed cavity formed between the male and female joints.

[0018] S6: After the cement slurry dries, a concrete inner column is formed in the inner cavity groove, and a cement sealing layer is formed in the sealed cavity.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention designs a wall column to connect two adjacent wall components. The wall components and the wall column are connected by a male and female connector. The connecting ribs of the wall components are inserted into the inner cavity groove of the wall column. Cement grout is poured into the inner cavity groove to form a solidified connection. This invention forms a sealed cavity in the male and female connector. When the inner cavity groove is grouted, the cement grout also enters the sealed cavity. After hardening, a reliable joint sealing layer can be formed.

[0021] 2. This invention is reasonably designed and easy to operate. It can solve the problem of reliable wall connection and effectively solve the problem of joint sealing, and has the value of promotion and application. Attached Figure Description

[0022] Figure 1 This is a front view of the connection of a prefabricated wall structure in this embodiment;

[0023] Figure 2 This is a cross-sectional structural diagram of the wall component and the inter-wall column at the connection position in this embodiment;

[0024] Figure 3 This is a three-dimensional shape diagram of the inter-wall column in this embodiment;

[0025] Figure 4 This is a three-dimensional shape diagram of the wall component in this embodiment.

[0026] Reference numerals: wall component 1, male connector 11, first inclined surface 111, connecting bar 12, outer protruding edge 13, wall column 2, female groove 21, second inclined surface 211, inner protruding edge 212, inner cavity groove 22, through bar hole 221, sealing cavity 3, column pin hole 4, column pin 41, top cover plate 5, grouting pipe 51, wall base 6. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-4 The prefabricated wall structure shown includes wall components 1 and wall columns 2. Two wall components 1 are symmetrically installed on both sides of the wall column 2 in the width direction. This invention designs the wall column 2 to connect two adjacent wall components 1, and solves the problems of reliable connection and sealing of the joint between the two adjacent wall components 1. To this end, this invention designs the wall column 2 to have two symmetrically formed female grooves 21 in the width direction, and the wall components 1 to have two symmetrically formed male connectors 11 in the width direction. The male connectors 11 are inserted into the female grooves 21 to connect the wall components 1 and the wall column 2. The connection method between the wall components 1 and the wall column 2 is called the male-female connection mode. Figure 2As shown, an inner cavity groove 22 is formed in the center of the wall column 2. The inner cavity groove 22 is vertically formed along the height direction of the wall column 2 and is a hollow cavity (for easy injection of cement grout). In this invention, a row of connecting ribs 12 is formed on the outer edge of the male body 11 of the wall component 1. The row of connecting ribs 12 is evenly distributed along the height direction of the male body 11. The connecting ribs 12 are pre-embedded in the interior of the wall component 1, and one end of the connecting ribs 12 extends out of the outer edge of the male body 11. A row of through holes 221 is formed on both side walls of the inner cavity groove 22 in the width direction of the wall column 2. The number and spacing of the through holes 221 are specified. The connecting ribs 12 are arranged one-to-one with each other. The male connector 11 is inserted into the female groove 21 so that the connecting ribs 12 are inserted into the inner cavity groove 22. The present invention dries and forms the concrete inner column by pouring cement grout into the inner cavity groove 22. Since the connecting ribs 12 are in the inner cavity groove 22, a row of connecting ribs 12 are poured into the concrete inner column, thus forming a reliable connection between the wall component 1 and the wall column 2. During the construction of the present invention, the two wall components 1 on both sides of the wall column 2 are first connected and installed, and then the concrete inner column is poured. In this way, the reliable connection problem of the two adjacent wall components 1 can be well solved by the wall column 2.

[0029] In existing prefabricated buildings, the joints between walls are typically sealed by applying sealant to the joint gaps. However, the sealant often only stays on the surface of the joint and has difficulty penetrating into the interior, resulting in a less than ideal sealing effect. Therefore, this invention changes the sealing design approach, such as... Figure 2 As shown, the male connector 11 and female groove 21 of the present invention are not inserted in a matching size. After insertion, a sealing cavity 3 is formed between the male connector 11 and the female groove 21 due to the gap. The sealing cavity 3 is initially an empty cavity. The male connector 11 has a first inclined surface 111, and the female groove 21 has a second inclined surface 211. The first inclined surface 111 and the second inclined surface 211 form an angle. The sealing cavity 3 has the largest gap in the depth direction of the female groove 21, and then gradually narrows towards the angle formed by the first inclined surface 111 and the second inclined surface 211, that is, it narrows towards the splice joint of the wall column 2 and the wall component 1. The present invention designs through-reinforcement holes. The diameter of 221 is larger than the outer side of the connecting bar 12. The sealing cavity 3 and the inner cavity groove 22 are connected through the bar-penetrating hole 221. This facilitates the installation of the connecting bar 12 through the bar-penetrating hole 221. When the cement grout is poured into the inner cavity groove 22, the grouting pressure and the fluidity of the cement grout allow the cement grout to enter the sealing cavity 3 through the bar-penetrating hole 221. The cement grout spreads and fills the sealing cavity 3. After drying, it forms a cement-cast sealing layer. The sealing layer is inside the joint, which effectively solves the problem of internal sealing of the joint. At the joint on the outer wall, sealant can still be applied and injected to form an overall sealing effect inside and outside, which effectively solves the problem of joint sealing.

[0030] During the installation of wall component 1 and wall column 2, the pre-connection of wall component 1 and wall column 2 must be addressed. Only after pre-connection can cement grouting be performed (to prevent abnormal separation of wall component 1 and wall column 2 during cement grouting, which could cause installation accidents). Therefore, as follows... Figure 2 and Figure 4 As shown, the male connector 11 has two symmetrical protruding edges 13 in the thickness direction of the wall component 1, such as... Figure 2 and Figure 3 As shown, the mother groove 21 forms two symmetrical inner protruding edges 212 in the thickness direction of the wall column 2. A set of outer protruding edges 13 and inner protruding edges 212 on the same side interlock and splice with each other. Specifically, a set of outer protruding edges 13 and inner protruding edges 212 are spliced ​​to form a pin hole 4. The pin hole 4 is opened along the height direction of the wall component 1. The pin hole 4 is square. By fitting a square strip pin 41 into the pin hole 4, the outer protruding edges 13 and inner protruding edges 212 are positioned and connected (also known as interlocking connection). The two sets of outer protruding edges 13 and inner protruding edges 212 interlock and splice with each other, and the wall component 1 and the wall column 2 cannot be separated, forming a reliable pre-connection effect. Only then can the operation of injecting cement grout into the inner cavity groove 22 and the sealing cavity 3 be carried out. The splicing of the outer protruding edges 13 and inner protruding edges 212 can also form a seal on the tapered end of the sealing cavity 3. The splicing of the outer protruding edges 13 and inner protruding edges 212 can also form a certain joint labyrinth sealing effect.

[0031] A construction method for a prefabricated wall structure, using the aforementioned prefabricated wall structure, includes the following steps:

[0032] S1: Erect and fix the wall column 2. The prefabricated wall structure installation site will have a wall base 6. The wall column 2 is fixed to the top of the wall base 6 by bolts on the bottom connecting plate (generally anchor bolts are used for fixing).

[0033] S2: A wall component 1 is vertically hoisted to one side of the width direction of the wall column 2. The wall component 1 is moved horizontally so that the male connector 11 on one side of the wall component 1 is inserted into the female groove 21 on the corresponding side of the wall column 2. During the male-female insertion connection, a row of connecting ribs 12 on the male connector 11 is inserted into the inner cavity groove 22 of the wall column 2.

[0034] S3: After the male connector 11 and the female groove 21 are connected, the two sets of outer protruding edges 13 and inner protruding edges 212 are also spliced. The pin 41 is driven into the pin hole 4 formed by the splicing of the outer protruding edges 13 and the inner protruding edges 212 (driven from top to bottom). The outer protruding edges 13 and the inner protruding edges 212 form an interlocking connection, so that the wall component 1 and the wall column 2 are pre-connected.

[0035] S4: Repeat steps S2 and S3 to pre-connect another wall component 1 to the other side of the wall column 2 in the width direction;

[0036] S5: A top cover plate 5 (bolted) is fixedly installed on the top of the wall column 2. A grouting pipe 51 is connected to the top cover plate 5. The top of the inner cavity groove 22 and the top of the sealing cavity 3 are sealed by the top cover plate 5. The bottom of the inner cavity groove 22 and the sealing cavity 3 are sealed by the wall base 6. The inner cavity groove 22 and the sealing cavity 3 become a closed environment. A cement grout pipe is connected to the grouting pipe 51 to continuously inject cement grout into the inner cavity groove 22. Under the action of grouting pressure and the connection of the through hole 221, the cement grout also enters the sealing cavity 3 and fills the gap space.

[0037] S6: After the cement slurry dries, a concrete inner column is formed in the inner cavity groove 22. The connecting bars 12 of the two wall components 1 are poured into the concrete inner column. Therefore, the two wall components 1 are reliably connected to the wall column 2. A U-shaped cement sealing layer is also formed in the sealing cavity 3. The cement sealing layer plays a role in sealing the inner side of the joint. The outer joint can still be sealed by applying sealant. With the combination of the inner and outer, the sealing effect of the joint is excellent.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A prefabricated wall structure, characterized in that, The wall includes a wall component (1) and a wall column (2). The two wall components (1) are symmetrically installed on both sides of the wall column (2) in the width direction. The wall column (2) has two female grooves (21) symmetrically opened in the width direction. The wall component (1) has two male connectors (11) symmetrically formed in the width direction. The male connectors (11) are inserted into the female grooves (21) to connect the wall component (1) and the wall column (2).

2. The prefabricated wall structure according to claim 1, characterized in that, The wall column (2) has an inner cavity groove (22) in the center. The inner cavity groove (22) is vertically opened along the height direction of the wall column (2). A row of connecting ribs (12) is formed on the outer edge of the male connector (11). The row of connecting ribs (12) is evenly distributed along the height direction of the male connector (11). The connecting ribs (12) extend out of the outer edge of the male connector (11). A row of through holes (221) is opened on both side walls of the inner cavity groove (22) in the width direction of the wall column (2). The through holes (221) are set one-to-one with the connecting ribs (12). The connecting ribs (12) are inserted into the inner cavity groove (22) by inserting the male connector (11) into the female groove (21).

3. The prefabricated wall structure according to claim 2, characterized in that, After insertion, a sealing cavity (3) is formed between the male connector (11) and the female groove (21). The male connector (11) is provided with a first inclined surface (111), and the female groove (21) is provided with a second inclined surface (211). The first inclined surface (111) and the second inclined surface (211) form an angle. The sealing cavity (3) gradually decreases in size at the angle formed by the first inclined surface (111) and the second inclined surface (211).

4. The prefabricated wall structure according to claim 3, characterized in that, The diameter of the through hole (221) is larger than the outer side of the connecting bar (12), and the sealing cavity (3) and the inner cavity groove (22) are connected through the through hole (221).

5. The prefabricated wall structure according to claim 1, characterized in that, The male connector (11) has two symmetrical outward protrusions (13) in the thickness direction of the wall component (1), and the female groove (21) has two symmetrical inward protrusions (212) in the thickness direction of the wall column (2). A set of outward protrusions (13) and inward protrusions (212) on the same side interlock and splice with each other.

6. The prefabricated wall structure according to claim 5, characterized in that, A set of the outer protruding edge (13) and inner protruding edge (212) are spliced ​​to form a pin hole (4). The pin hole (4) is opened along the height direction of the wall component (1). The pin hole (4) is square. A square strip pin (41) is fitted into the pin hole (4).

7. A construction method for a prefabricated wall structure, implemented using a prefabricated wall structure as described in any one of claims 1-6, characterized in that, Includes the following steps: S1: Erect and fix the inter-wall column (2); S2: Erect a wall component (1) and hoist it to one side of the width direction of the wall column (2). Move the wall component (1) horizontally so that the male connector (11) is inserted into the female groove (21) of the wall column (2) and the connecting bar (12) is inserted into the inner cavity groove (22). S3: Drive a pin (41) into the pin hole (4) formed by the connection of the male body (11) and the female groove (21) so that the wall component (1) and the wall column (2) are pre-connected; S4: Repeat steps S2 and S3 to pre-connect another wall component (1) to the other side of the width direction of the wall column (2); S5: Cement grout is poured into the inner cavity groove (22). Under the connection of the through hole (221), the cement grout also enters the sealed cavity (3) formed between the male body (11) and the female groove (21). S6: After the cement slurry dries, a concrete inner column is formed in the inner cavity groove (22), and a cement sealing layer is formed in the sealing cavity (3).

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