Prefabricated assembled shear wall and construction method thereof

Abstract

The present invention discloses a prefabricated assembled shear wall and a construction method thereof. The prefabricated assembled shear wall includes a wall body, which includes an upper wall, a lower wall, and a connecting floor slab connecting the upper wall and the lower wall. Horizontal distribution bars, vertical distribution bars, and supporting members are provided in the wall body. The supporting members are arranged at the ends and intersections of the wall body. The supporting members include steel sections, spiral stirrups, and a plurality of studs. The studs are welded to the surface of the steel sections, and the spiral stirrups are arranged around the steel sections. The supporting members of the upper wall are welded to the supporting members of the lower wall, and the vertical distribution bars of the upper wall are connected to the vertical distribution bars of the lower wall. The prefabricated assembled shear wall provided by the present invention replaces the longitudinal bars of the edge members in traditional prefabricated assembled shear walls with steel sections. Therefore, when vertically connecting, it is only necessary to align the steel sections that weld the upper and lower walls, avoiding the alignment and connection of a large number of longitudinal bars of the edge members, greatly shortening the construction period and reducing construction costs.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, and more specifically, to a prefabricated assembled shear wall. In addition, the present invention also relates to a construction method for the prefabricated assembled shear wall. Background Art

[0002] Traditional construction methods have low production efficiency, slow construction speed, long construction period, high material consumption and high labor intensity. Standardization of architectural design, factory production, assembly construction and information management have become the development direction of the construction industry.

[0003] Existing prefabricated shear walls are equipped with a large number of longitudinal reinforcements in the edge components. The longitudinal reinforcements of the edge components are vertically connected through steel sleeve connections or grout anchor connections. The construction requires high precision, is difficult to construct, and has a low tolerance for construction errors, making it difficult to effectively guarantee the construction quality.

[0004] In summary, how to provide an efficient prefabricated shear wall and a construction method thereof is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a prefabricated assembled shear wall, in which the ends and intersections of the wall are connected by welding steel sections, and the middle is connected by other methods, avoiding the alignment and connection of a large number of steel bars, effectively shortening the construction period and reducing construction costs.

[0006] In addition, the present invention also provides a prefabricated assembled shear wall construction method for the above-mentioned prefabricated assembled shear wall.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A prefabricated shear wall comprises a wall body, wherein the wall body comprises an upper wall, a lower wall, and a connecting floor slab connecting the upper wall and the lower wall; horizontal distribution reinforcement, vertical distribution reinforcement, and supporting members are provided in the wall body; the supporting members are provided at the ends and intersections of the wall body;

[0009] The supporting member includes a steel section, spiral stirrups and a plurality of studs, wherein the studs are welded to the surface of the steel section, and the spiral stirrups are arranged around the steel section;

[0010] The supporting member of the upper wall is connected to the supporting member of the lower wall by welding, and the vertical distribution reinforcement of the upper wall is connected to the vertical distribution reinforcement of the lower wall.

[0011] Preferably, the vertical distribution reinforcement includes steel bars, large-diameter equivalent steel bars and equivalent steel sections.

[0012] Preferably, the steel bars of the upper wall and the steel bars of the lower wall are overlapped, connected by mortar anchors, welded, or connected via steel sleeves.

[0013] Preferably, the large-diameter equivalent steel bars of the upper wall and the large-diameter equivalent steel bars of the lower wall are connected by welding, grouting, sleeve grouting, or through steel sleeves.

[0014] Preferably, the equivalent steel sections of the upper wall and the equivalent steel sections of the lower wall are connected by welding.

[0015] Preferably, a plurality of the studs are provided on the surface of the equivalent steel section, and the spiral stirrups are arranged around the outer periphery of the equivalent steel section.

[0016] Preferably, a reserved groove is provided on the top surface of the lower wall, and the vertical distribution ribs are provided in the reserved groove.

[0017] Preferably, the wall includes a rectangular shear wall, an L-shaped shear wall and a T-shaped shear wall.

[0018] A prefabricated shear wall construction method, comprising:

[0019] Prefabricated production of upper and lower walls;

[0020] Hoisting the upper wall to just above the lower wall;

[0021] Welding the steel sections of the upper wall and the lower wall, and connecting the vertical distribution bars of the upper wall and the lower wall;

[0022] The upper wall and the lower wall are connected via a connecting floor slab.

[0023] Preferably, the connecting floor slabs include cast-in-place floor slabs, composite slabs, corrugated steel plate composite slabs and steel truss floor slabs.

[0024] During the construction of the prefabricated assembled shear wall provided by the present invention, the upper wall and the lower wall are prefabricated in a factory; during construction, the upper wall is first hoisted so that the supporting members of the upper wall are aligned with the supporting members of the lower wall; then, the steel sections of the upper wall and the steel sections of the lower wall are welded and connected, and the vertical distribution reinforcement of the upper wall and the vertical distribution reinforcement of the lower wall are connected; finally, a connecting floor is built between the upper wall and the lower wall to connect the upper wall and the lower wall.

[0025] The prefabricated assembled shear wall provided by the present invention replaces the longitudinal reinforcement in the edge components of the traditional assembled shear wall with the steel sections in the supporting components. When the shear wall is vertically connected, it is only necessary to align and weld the steel sections of the upper wall and the steel sections of the lower wall, avoiding the need to connect a large number of longitudinal reinforcements of the edge components in a positional manner. The number of vertical connection points is reduced and the connection method is simple, which greatly shortens the construction period, reduces construction costs, and effectively ensures the quality of the vertical connection of the shear wall.

[0026] At the same time, the setting of steel sections not only meets the bending bearing capacity requirements of the shear wall, but also enhances the ductility of the wall.

[0027] In addition, the present invention also provides a prefabricated assembled shear wall construction method for the above-mentioned prefabricated assembled shear wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 This is a schematic front view of a specific embodiment 1 of the prefabricated assembled shear wall provided by the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the main view of the upper or lower wall;

[0031] Figure 3 for Figure 1 Schematic top view of

[0032] Figure 4 This is a schematic front view of a second specific embodiment of the prefabricated assembled shear wall provided by the present invention;

[0033] Figure 5 This is a schematic front view of a third specific embodiment of the prefabricated assembled shear wall provided by the present invention;

[0034] Figure 6 for Figure 5 Schematic top view of

[0035] Figure 7 This is a schematic front view of a fourth specific embodiment of the prefabricated assembled shear wall provided by the present invention;

[0036] Figure 8 for Figure 7 Schematic top view of

[0037] Figure 9 This is a schematic front view of a fifth specific embodiment of the prefabricated assembled shear wall provided by the present invention;

[0038] Figure 10 A schematic top view of a sixth specific embodiment of the prefabricated assembled shear wall provided by the present invention;

[0039] Figure 11This is a top view schematic diagram of the specific embodiment 7 of the prefabricated assembled shear wall provided by the present invention.

[0040] Figures 1-11 middle:

[0041] 1 is the supporting member, 11 is the steel section, 111 is the weld, 12 is the spiral stirrup, 13 is the stud, 2 is the horizontal distribution reinforcement, 3 is the vertical distribution reinforcement, 31 is the large-diameter equivalent steel bar, 32 is the equivalent steel section, 4 is the connecting floor slab, 5 is the reserved groove, 6 is the grouting sleeve, and 7 is the stirrup. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] The core of the present invention is to provide a prefabricated assembled shear wall, in which the ends and intersections of the wall are connected by welding steel sections, and the middle is connected by other methods, avoiding the need to align and connect a large number of steel bars, effectively shortening the construction period and reducing construction costs.

[0044] The present invention also provides a prefabricated assembled shear wall construction method including the prefabricated assembled shear wall.

[0045] Please refer to Figures 1-11 .

[0046] The prefabricated assembled shear wall provided by the present invention includes a wall body, which includes an upper wall, a lower wall and a connecting floor 4 connecting the upper wall and the lower wall. Horizontal distribution reinforcement 2, vertical distribution reinforcement 3 and a supporting member 1 are provided in the wall body, and the supporting member 1 is arranged at the end and intersection of the wall body; the supporting member 1 includes a steel section 11, a spiral stirrup 12 and a plurality of studs 13, the studs 13 are welded to the surface of the steel section 11, and the spiral stirrups 12 are arranged around the steel section 11; the supporting member 1 of the upper wall is welded to the supporting member 1 of the lower wall, and the vertical distribution reinforcement 3 of the upper wall is connected to the vertical distribution reinforcement 3 of the lower wall.

[0047] The shape and size of the wall are determined according to the architectural design requirements. Preferably, the wall may include: Figure 3 The rectangular shear wall shown, Figure 11 The L-shaped shear wall shown and Figure 10 T-type shear wall shown.

[0048] The supporting member 1 is arranged at the end of the shear wall. Figure 3 At both ends of the rectangular shear wall and at the intersection of the shear wall, such as Figure 10 The intersection of the two walls in the middle T-shaped shear wall.

[0049] Support member 1 replaces the longitudinal reinforcement of traditional shear wall edge members to facilitate the vertical connection of prefabricated shear walls. Traditional shear wall edge members are equipped with a large number of longitudinal reinforcements. To ensure the bending strength of the shear wall, the cross-sectional area of ​​steel section 11 is designed to be equivalent to the bending bearing capacity of the longitudinal reinforcement of traditional shear wall edge members.

[0050] Spiral stirrups 12 are arranged around the outer periphery of the steel section 11. The spiral stirrups 12 can be welded to the outer periphery of the steel section 11 or tied to the outside of the steel section 11. In order to enhance the connection strength between the steel section 11 and the wall concrete structure, a plurality of studs 13 are provided on the surface of the steel section 11. Preferably, the studs 13 are evenly distributed along the length of the steel section 11.

[0051] In order to facilitate the welding connection between the upper wall steel section 11 and the lower wall steel section 11 to form the weld 111, preferably, the end surface of the steel section 11 protruding from the upper wall or the lower wall can be set to facilitate the welding operation during assembly.

[0052] The horizontal distribution bars 2 are distributed along the length direction of the wall, and the vertical distribution bars 3 are distributed along the height direction of the wall. Stirrups 7 are tied or welded to the horizontal distribution bars 2 and the vertical distribution bars 3 .

[0053] When connecting the upper wall and the lower wall, the vertical distribution reinforcement 3 of the upper wall needs to be connected with the vertical distribution reinforcement 3 of the lower wall. The specific connection method of the vertical distribution reinforcement 3 is determined according to the type of the vertical distribution reinforcement 3 and will not be repeated here.

[0054] The connecting floor 4 is used to connect the upper wall and the lower wall. The connecting floor 4 can be a cast-in-place floor, a composite slab, a corrugated steel plate composite slab, or a steel truss floor slab. The specific type is determined according to the building design requirements and construction conditions.

[0055] During construction, the upper wall and the lower wall are prefabricated in the factory. During construction, the upper wall is first hoisted so that the supporting member 1 of the upper wall is aligned with the supporting member 1 of the lower wall. Then, the steel section 11 of the upper wall and the steel section 11 of the lower wall are welded together, and the vertical distribution reinforcement 3 of the upper wall and the vertical distribution reinforcement 3 of the lower wall are connected. Finally, a connecting floor slab 4 is built between the upper wall and the lower wall to connect the upper wall and the lower wall.

[0056] In this embodiment, the steel sections 11 in the supporting member 1 replace the longitudinal reinforcement in the edge member of the traditional prefabricated shear wall. During vertical connection, it is only necessary to align and weld the steel sections 11 of the upper wall and the steel sections 11 of the lower wall, thereby avoiding the need to perform positional connection on a large number of longitudinal reinforcements of the edge members. The number of vertical connection points is reduced and the connection method is simple, which greatly shortens the construction period, reduces the construction cost, and effectively ensures the quality of the vertical connection of the shear wall.

[0057] At the same time, the provision of the steel section 11 not only meets the bending bearing capacity requirements of the shear wall, but also enhances the ductility of the wall.

[0058] Preferably, the vertical distribution reinforcement 3 may include steel bars, large-diameter equivalent steel bars 31 and equivalent section steel 32 .

[0059] Vertical distribution reinforcement 3 can be made of steel bars, and the specific type of steel bars such as high-strength steel bars or ordinary steel bars can be selected according to the requirements of the building design. Figure 1 and Figure 4 Preferably, the steel bars of the upper wall and the steel bars of the lower wall are overlapped or connected by mortar anchors or welded or connected by steel sleeves.

[0060] The steel sleeve can be a threaded steel sleeve or a Figure 4 The grouting sleeve 6 is shown.

[0061] Of course, the steel bars can also be replaced by large-diameter equivalent steel bars 31 , and the cross-sectional area of ​​the large-diameter equivalent steel bars 31 is equivalently designed according to the bending bearing capacity of the steel bars.

[0062] Please refer to Figure 6 The large-diameter equivalent steel bars 31 of the upper wall and the large-diameter equivalent steel bars 31 of the lower wall are overlapped and connected. Due to the large cross-sectional area of ​​the large-diameter equivalent steel bars 31, welding can also be used for connection. Alternatively, the large-diameter equivalent steel bars 31 can be connected using grouting, sleeve grouting, or steel sleeves.

[0063] In order to further simplify the connection method of the vertical distribution reinforcement 3, the steel bars can be replaced by equivalent steel sections 32. The cross-sectional area of ​​the equivalent steel sections 32 is equivalently designed according to the bending bearing capacity of the steel bars.

[0064] Please refer to Figure 7 Preferably, the equivalent steel section 32 of the upper wall is welded to the equivalent steel section 32 of the lower wall.

[0065] Preferably, in order to enhance the connection strength between the equivalent steel section 32 and the concrete in the wall, a plurality of studs 13 are provided on the surface of the equivalent steel section 32 , and spiral stirrups 12 are provided around the periphery of the equivalent steel section 32 .

[0066] On the basis of the above embodiment, in order to facilitate the connection of the vertical distribution ribs 3, please refer to Figure 9 A reserved groove 5 is provided on the top surface of the lower wall, and vertical distribution reinforcement 3 is provided in the reserved groove 5, thereby reserving sufficient operating space for the connection of the vertical distribution reinforcement 3 and facilitating the vertical connection of the shear wall.

[0067] In addition to the above-mentioned prefabricated and assembled shear wall, the present invention further provides a prefabricated and assembled shear wall construction method for the prefabricated and assembled shear wall disclosed in the above-mentioned embodiment, comprising:

[0068] Step S1, prefabricate the upper wall and the lower wall;

[0069] Step S2, installing the upper wall to just above the lower wall;

[0070] Step S3, welding the steel sections 11 of the upper wall and the steel sections 11 of the lower wall, and connecting the vertical distribution bars 3 of the upper wall and the vertical distribution bars 3 of the lower wall;

[0071] Step S4 , connecting the upper wall and the lower wall by connecting the floor slab 4 .

[0072] It should be noted that step S1 can be completely prefabricated and formed, or only the supporting member 1 can be prefabricated and assembled, and the horizontal distribution reinforcement 2 and vertical distribution reinforcement 3 can be prefabricated and produced, and concrete can be poured on site to reduce the transportation weight of the prefabricated shear wall and facilitate transportation and installation.

[0073] What needs to be explained about step S3 is that the steel section 11 of the upper wall is welded to the steel section 11 of the lower wall, which on the one hand completes the alignment connection between the upper wall and the lower wall, and on the other hand realizes the alignment of the vertical distribution reinforcement 3 of the upper wall and the vertical distribution reinforcement 3 of the lower wall, facilitating the connection of the vertical distribution reinforcement 3.

[0074] It should be noted that the specific construction method of the connecting floor 4 is determined according to the type of the connecting floor 4. When the connecting floor 4 is a cast-in-place floor, formwork is supported between the lower end surface of the upper wall and the upper end surface of the lower wall to pour concrete.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above is a detailed introduction to the prefabricated assembled shear wall and its construction method provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A prefabricated shear wall, comprising a wall body, characterized in that: The wall comprises an upper wall, a lower wall and a connecting floor slab (4) connecting the upper wall and the lower wall; horizontal distribution bars (2), vertical distribution bars (3) and a supporting member (1) are provided in the wall; a reserved groove (5) is provided on the top surface of the lower wall; the vertical distribution bars (3) are provided in the reserved groove (5); the supporting member (1) is arranged at the end and intersection of the wall; the supporting member (1) is used to replace the longitudinal bars of the shear wall edge member to facilitate the vertical connection of the prefabricated assembled shear wall; The supporting member (1) comprises a steel section (11), spiral stirrups (12) and a plurality of studs (13); the steel section (11) is arranged to protrude from the end face of the upper wall or the end face of the lower wall to facilitate welding of the steel section (11) of the upper wall and the steel section (11) of the lower wall to form a weld (111); the cross-sectional area of ​​the steel section (11) is designed based on the equivalent bending bearing capacity of the longitudinal reinforcement of the shear wall edge member; the studs (13) are welded to the surface of the steel section (11); and the spiral stirrups (12) are arranged around the steel section (11); The vertical distribution reinforcement (3) includes steel bars, large-diameter equivalent steel bars (31) and equivalent section steel (32); The supporting member (1) of the upper wall is welded to the supporting member (1) of the lower wall, and the vertical distribution ribs (3) of the upper wall are connected to the vertical distribution ribs (3) of the lower wall.

2. The prefabricated assembled shear wall according to claim 1, characterized in that: The steel bars of the upper wall and the steel bars of the lower wall are overlapped or connected by mortar anchors or welding or connected by steel bar sleeves.

3. The prefabricated shear wall according to claim 1, characterized in that: The large-diameter equivalent steel bars (31) of the upper wall and the large-diameter equivalent steel bars (31) of the lower wall are connected by welding, grouting, sleeve grouting, or through steel sleeves.

4. The prefabricated shear wall according to claim 1, characterized in that: The equivalent steel section (32) of the upper wall and the equivalent steel section (32) of the lower wall are welded together.

5. The prefabricated assembled shear wall according to claim 4, characterized in that: A plurality of the studs (13) are provided on the surface of the equivalent steel section (32), and the spiral stirrups (12) are arranged around the outer periphery of the equivalent steel section (32).

6. The prefabricated assembled shear wall according to any one of claims 1 to 5, characterized in that: The wall includes a rectangular shear wall, an L-shaped shear wall and a T-shaped shear wall.

7. A construction method for a prefabricated shear wall according to any one of claims 1 to 6, characterized in that: include: Prefabricated production of upper and lower walls; Hoisting the upper wall to just above the lower wall; Welding the steel sections (11) of the upper wall and the steel sections (11) of the lower wall, and connecting the vertical distribution bars (3) of the upper wall and the vertical distribution bars (3) of the lower wall; The upper wall and the lower wall are connected via a connecting floor slab (4).

8. The construction method according to claim 7, characterized in that: The connecting floor slab (4) comprises a cast-in-place floor slab, a composite slab, a profiled steel plate composite slab and a steel bar truss floor slab.

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