CN211523629U

CN211523629U - Superimposed shear wall

Info

Publication number: CN211523629U
Application number: CN201922397659.6U
Authority: CN
Inventors: 张猛; 孙海宾; 马云飞
Original assignee: Sany Construction Technology Co Ltd
Current assignee: Sany Construction Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-18
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a superimposed shear wall, including wall body, entrance to a cave and shutoff board. The wall body comprises a first surface precast slab and a second surface precast slab which are arranged in parallel at intervals; the first surface precast slab and the second surface precast slab are formed by precast concrete, the two surface precast slabs are connected together through a reinforcement cage, and a cavity is formed between the two surface walls; the cavity is used for casting concrete in situ. The blocking plate is a prefabricated part and is arranged on the periphery of the opening of the hole and/or the end part of the wall body so as to block the periphery of the opening of the hole and/or the end part of the wall body. The plugging plate of the laminated shear wall can replace a side template used on site, reduces the operation amount of the template and the construction process, accelerates the construction speed, meets the requirements of industrialized design and construction of assembled and standardized buildings, and has simple plugging structure and strong applicability.

Description

Superimposed shear wall

Technical Field

The disclosure relates to the field of construction of building components, in particular to a superposed shear wall.

Background

The fabricated building refers to a building fabricated at a construction site using prefabricated parts. Superimposed shear walls are prefabricated components commonly used in prefabricated building construction. Compared with a solid wall with the same size, the superposed shear wall has lighter self weight. This also makes it possible to install the semifinished products on the site with cranes of lower bearing capacity. In addition, the superposed shear wall can be used as a template to replace template supports on two sides of the wall body. Therefore, the superposed shear wall is widely used.

However, the door and window openings and the wall ends of the existing composite shear wall still need to be plugged by using side molds during construction. The plugging of the door and window opening refers to plugging of the periphery of the opening of the door and window opening in the plane of the wall in the thickness direction. The plugging of the wall end means plugging the end exposed to the outside of the wall. Depending on the construction site of the wall, the wall may have one end on the side to be plugged, or may have two ends on the side or two ends on the side plus the top to be plugged. The side forms at the door and window opening and the wall end part have small plugging area, a large number of workers and long operation time, so that a lot of labor workers are reluctant to carry out construction at the position, and the overall progress of the whole project is greatly influenced.

SUMMERY OF THE UTILITY MODEL

To solve or at least alleviate at least one of the above technical problems, the present disclosure provides a laminated shear wall.

According to one aspect of the present disclosure, a laminated shear wall includes:

the wall comprises a first surface precast slab and a second surface precast slab which are arranged in parallel at intervals; the first surface precast slab and the second surface precast slab are formed by precast concrete, the two surface precast slabs are connected together through a reinforcement cage, and a cavity is formed between the two surface precast slabs; the cavity is used for casting concrete in situ;

the hole is formed in the wall body and penetrates through the corresponding positions of the first surface precast slab and the second surface precast slab in the thickness direction; and

the plugging plate is a prefabricated part and is arranged on the periphery of the opening of the hole and/or the end part of the wall body so as to plug the periphery of the opening of the hole and/or the end part of the wall body.

According to at least one embodiment of the present disclosure, the plugging plate includes a plugging plate body and protruding reinforcing bars;

the plugging plate body is formed by prefabricating concrete; two sides of the plugging plate body are respectively embedded into the first surface precast plate and the second surface precast plate;

part of the extending steel bars are embedded in the plugging plate body, and part of the extending steel bars extend out of the plugging plate body; and the part of the extended steel bar extending out of the plugging plate body is embedded in the precast slab and/or the concrete poured in the cavity.

According to at least one embodiment of the present disclosure, a steel bar mesh is embedded inside the plugging plate body, and the steel bar mesh comprises longitudinal steel bars extending along the longitudinal direction of the plugging plate body and transverse steel bars extending along the transverse direction of the plugging plate body; the transverse steel bars extend out of the plugging plate body; the transverse reinforcement forms the projecting reinforcement.

According to at least one embodiment of the present disclosure, the closure plate body is in a rectangular parallelepiped shape; the closure plate body comprises a first face facing the cavity and a second face opposite the first face;

the extension reinforcing steel bars extend out of the first face and extend obliquely to two sides respectively, and an included angle between the extension direction of the extension reinforcing steel bars and the normal line of the first face is an acute angle.

According to at least one embodiment of the present disclosure, the closure plate body is in a rectangular parallelepiped shape; the closure plate body includes a first face facing the cavity; and a second face opposite the first face;

the protruding reinforcing bars protrude from the first face and extend in a direction perpendicular to the first face at both sides.

According to at least one embodiment of the present disclosure, the closure plate body is in a rectangular parallelepiped shape; the blocking plate body comprises a first side surface facing the first prefabricated plate and a second side surface facing the second prefabricated plate;

the protruding reinforcing steel bars respectively extend perpendicularly to the first side face and the second side face.

According to at least one embodiment of the present disclosure, both side edges of the first surface and/or the second surface of the plugging plate body are provided with chamfers.

According to at least one embodiment of the present disclosure, the blocking plate is disposed at a lower side of the hole; and the part extending out of the plugging plate body extends out of a steel bar and is embedded in the concrete poured in the cavity.

According to at least one embodiment of the present disclosure, the longitudinal reinforcement is disposed within the blanking panel body at a location closer to the cavity.

According to at least one embodiment of the present disclosure, the wall body end is provided with a reserved viewing port.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a schematic view of an exemplary embodiment of the present disclosure of a laminated shear wall showing a fenestration and wall end blocking structure.

Fig. 2a and 2b are schematic partial cross-sectional views of the disclosed superposed shear wall.

FIG. 3 is a schematic view of the plugging plate embedded with two prefabricated panels in the disclosed stacked shear wall.

Fig. 4 is a schematic view of the arrangement of the reinforcing steel bars in the plugging plate in the disclosed superposed shear wall.

Fig. 5a to 5e are schematic views of several different embodiments of the closure panel in the laminated shear wall according to the present disclosure.

FIG. 6 is an illustrative schematic diagram illustrating the orientation of the window opening in a laminated shear wall of the present disclosure.

Fig. 7 is a schematic view of the connection of the plugging plates disposed at the upper side, left side, right side and end of the window in the disclosed superimposed shear wall.

Fig. 8 is a schematic view illustrating a connection manner of a blocking plate disposed at a lower side of a window in the disclosed superposed shear wall.

Fig. 9 is a schematic view of the plugging position of the plugging plate disposed at the end of the wall body in the disclosed superposed shear wall.

Fig. 10a to 10d are schematic views illustrating states of steps in a manufacturing process of the disclosed stacked shear wall.

Description of reference numerals:

1-a window top plugging plate; 2-window side plugging plate; 3-window bottom plugging plate; 4-door side closure panel; 5-door top plugging plate; 6-wall end plugging plate; 7-folding component steel bars; 8-plugging plate body; 9-an opening; 10-a wall body; 11-a cavity; 12-longitudinal steel bars; 13-transverse bars (protruding bars); 14-window top or window side laminated shear wall; 15-window bottom superimposed shear wall; 16-a viewing port; 17-a-side prefabricated panels (first-side prefabricated panels); 18-side forms; the 19-B side precast panel (second side precast panel).

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The door and window opening and the wall end of the existing superposed shear wall still need to be plugged by adopting a side mold during construction. Because the cavity is arranged between the two wall bodies of the superposed shear wall, after the door and window openings are formed, the cavity is opened outwards at the peripheral edges of the door and window openings on the wall bodies, and the cavity at the end part of the wall body is also opened outwards. The plugging of the door and window opening and the end part of the wall body means that the cavity openings at the peripheral edge of the door and window opening and the cavity openings of the wall body exposed to the outside are plugged, so that the cavity which is opened outwards is plugged. Depending on the construction site of the wall, the wall may have one end on the side to be plugged, or may have two ends on the side or two ends on the side plus the top to be plugged. The side mold for plugging the door and window opening and the end part of the wall body has small plugging area, large amount of labor and long operation time, so that a lot of labor workers are reluctant to carry out construction at the position, and the overall progress of the whole project is greatly influenced.

Therefore, the closure structure for the door and window opening and the wall end part of the laminated shear wall tries to solve or at least relieve at least one of the technical problems, and the laminated shear wall is disclosed through rich experience accumulated in the field of fabricated buildings and continuous exploration for many years on the basis.

In the application document of the present disclosure, for convenience of describing the positional relationship of each component in the laminated shear wall prefabricated member, the vertical height direction of the laminated shear wall prefabricated member is referred to as vertical direction, taking the position of the laminated shear wall prefabricated member after being constructed in place as a standard; the left and right width directions of the superposed shear wall prefabricated member are called as horizontal directions; the direction from the outer surface of the first surface prefabricated plate to the outer surface of the second surface prefabricated plate is the thickness direction of the superposed shear wall prefabricated member, namely the direction vertical to the wall surface. The direction in which the size of the plugging plate is larger is called the longitudinal direction or the length direction of the plugging plate, and the direction in which the thickness direction of the plugging plate is consistent with the thickness direction of the wall body 10 is called the transverse direction or the width direction of the plugging plate; the direction in which the blocking plate is fitted into the cavity 11 is referred to as the thickness direction of the blocking plate.

In accordance with one aspect of the present disclosure, reference is made to fig. 1, which is a schematic illustration of an exemplary embodiment of the present disclosed superimposed shear wall, showing a door window opening and wall end blocking structure. A superposed shear wall is provided, which comprises a wall body 10, a hole 9 and a plugging plate. The wall body 10 comprises a first surface prefabricated plate 17 and a second surface prefabricated plate 19 which are arranged in parallel at intervals; the first surface prefabricated plate 17 and the second surface prefabricated plate 19 are formed by prefabricating concrete, the two surface prefabricated plates are connected together through a reinforcement cage, and a cavity 11 is formed between the two surface prefabricated plates. Accordingly, the wall 10 may also be referred to as a cavity member. The cavity 11 is used for casting concrete in situ. Generally, the steel bars 7 of the overlapped members are provided in the first and second

prefabricated panels

17 and 19 and between the first and second

prefabricated panels

17 and 19, for example, steel meshes are embedded in the first and second

prefabricated panels

17 and 19, a steel reinforcement cage is provided between the first and second

prefabricated panels

17 and 19, and both sides of the steel reinforcement cage are embedded in the precast concrete of the first and second

prefabricated panels

17 and 19, respectively, to form an integral connection structure. The hole 9 is arranged at a designated position on the wall body 10 and penetrates through corresponding positions of the first surface prefabricated plate 17 and the second surface prefabricated plate 19 in the thickness direction. The opening 9 is a generic term of a window and a door opening, and may refer to a window or a door opening, for example, only a window or a door opening may be provided on the wall 10, or both a window and a door opening may be provided. If a window is arranged on the wall body 10, the four edges of the window need to be plugged, and the plugging plates are arranged at the open positions of the cavities 11 at the upper, lower, left and right edges of the window for plugging. If the wall body 10 is provided with a door opening, the upper side and the left and right side edges of the door opening need to be blocked, the lower side does not have the wall body 10 and therefore does not need to be blocked, and the blocking plates are arranged at the open positions of the cavities 11 at the upper side and the left and right side edges of the door opening for blocking. The end of the wall 10 refers to the top, left or right side of the wall 10, and may be plugged according to the construction position of the wall 10, and the plugging plate is disposed at the end of the wall 10 where plugging is needed. In combination with the above situations, the blocking plate is arranged at the opening periphery of the hole 9 and/or the end part of the wall body 10 to block the opening periphery of the hole 9 and/or the end part of the wall body 10. The plugging plate is a prefabricated member the same as the prefabricated member of the wall 10, and may be connected to the wall 10 when the wall 10 is prefabricated, or may be connected to the wall 10 when the wall 10 is constructed. If the plugging plate is connected with the wall 10 when the wall 10 is prefabricated, the plugging plate is firstly connected with the wall 10, and is connected with the wall 10 and the later poured concrete after the concrete is poured into the cavity 11 during construction. If the plugging plate is connected with the wall 10 when the wall 10 is constructed, the plugging plate is connected with the wall 10 through concrete poured into the cavity 11 to form an integral stressed structure. Combining all the above situations, the plugging plate is connected with the wall body 10 through concrete. As shown in fig. 1, a window and a door opening are formed in a wall 10, and the right side of the wall 10 needs to be plugged, wherein a window top plugging plate 1, a window side plugging plate 2, a window bottom plugging plate 3, a door side plugging plate 4, a door top plugging plate 5, and a wall 10 end plugging plate 6 are arranged.

According to the composite shear wall, the prefabricated plugging plate component is adopted, the hole 9 of the composite shear wall and the end part of the wall body 10 can be plugged when the prefabricated wall body 10 component is produced, the plugging plate can replace a side template used on site, the operation amount and the construction process of the template are reduced, the construction speed is accelerated, the assembly and standard building industrial design and construction requirements are met, and the plugging structure of the whole wall body 10 is simple and high in applicability.

In one embodiment of the present disclosure, referring to the schematic partial cross-sectional views of the disclosed superposed shear wall shown in fig. 2a and 2b, the closure panel may include a closure panel body 8 and protruding reinforcing bars 13. The plugging plate body 8 is formed by prefabricating concrete; the shape of the plugging plate body 8 is adapted to the shape of the opening of the cavity 11 at the periphery of the opening 9 and the end of the wall 10, for example, the plugging plate body 8 is embedded into the opening of the cavity 11 to be plugged in a long strip shape, two sides of the plugging plate body 8 are embedded into the first surface prefabricated plate 17 and the second surface prefabricated plate 19 by a certain depth respectively, and one surface of the plugging plate body 8 departing from the cavity 11 is a flat surface and is flush with the opening end face of the wall 10.

The protruding reinforcement 13 is used to connect the plugging plate body 8 with the wall 10 or the post-cast concrete to form an integral structure, and thus includes a portion embedded in the plugging plate body 8 and a portion protruding from the plugging plate body 8. That is, part of the protruding reinforcing steel bar 13 is embedded in the plugging plate body 8, and part of the protruding reinforcing steel bar 13 protrudes out of the plugging plate body 8. According to different connection modes of the plugging plates, the part of the extending steel bars 13 extending out of the plugging plate body 8 is buried in concrete poured in the wall body 10 and/or the cavity 11. If the closure panel is connected to the wall 10 when the wall 10 is prefabricated, the protruding reinforcement 13 is embedded in the wall 10, in which case, part of the protruding reinforcement 13 may be located in the cavity 11, and after the concrete is poured into the cavity 11, the protruding reinforcement 13 may be embedded in the concrete poured later. If the closure panel is attached to the wall 10 during construction of the wall 10, the protruding reinforcing bars 13 are embedded in the concrete poured after the cavity 11.

Optionally, the precast concrete of the first surface precast slab 17 and the second surface precast slab 19 is the same as the precast concrete of the closure slab. The common concrete is adopted during the prefabrication of the plugging plate, the common concrete is the same as the precast concrete material adopted by the wall body 10 of the superposed shear wall, the integrity of the plugging interface is ensured after the combination is finished, and the cracking of the joint of the plugging interface caused by the inconsistent material properties is avoided.

In one embodiment of the present disclosure, the thickness of the plugging plate body 8 ranges from 30mm to 50 mm. If the plugging plate is too thin, the protective layer of the reinforcing mesh in the plugging plate is insufficient, and the requirement on durability cannot be met. If the plugging plate is too thick, the internal reinforcing steel bar space of the superposed component can be occupied, so that the sizes of the wall top connecting beam and the wall pier are reduced, and the structural stress is influenced. In fig. 2a and 2b, dimension a represents the thickness of the plugging plate; the dimension b represents the height of the wall top connecting beam for arranging the plugging plate; the dimension H represents the height of a connecting beam at the top of the wall without the plugging plate; the size n represents the width of the wall stack provided with the plugging plate; dimension L represents the width of the wall stack without the closure panel.

In one embodiment of the present disclosure, reference is made to the schematic illustration of the insertion of closure panels into a laminated wall 10 of the present disclosure as shown in fig. 3. The width of the plugging plate body 8 is 10-20 mm larger than that of the cavity 11; the depth of the first surface prefabricated plate 17 or the second surface prefabricated plate 19 embedded into one side of the plugging plate body 8 is 5 mm-10 mm. The depth to which the closure panel body 8 is embedded in the prefabricated panels is generally the same (symmetrical) on both sides. Because the width of shutoff board can influence its inseparable degree that combines with coincide shear force wall body 10, the shutoff board is too narrow, can produce the piece clearance between the two during the concatenation, when production has the error, more can cause the piece increase. If the closure panel is too wide, the thickness of the end of the prefabricated wall 10 is weakened too much when the closure panel is combined with the prefabricated wall 10, which may cause the end of the wall 10 to be loose or cracked. In fig. 3, the dimension t represents the depth of embedding the plugging plate into the laminated wall 10; dimension d represents the thickness of the end of prefabricated wall 10.

In one embodiment of the present disclosure, the length of the closure plate body 8 is no greater than 2.4 m. When the length of shutoff board body 8 is no longer than 2.4m, but the complete drawing of patterns of shutoff board prefabrication back, but manual handling, convenient operation, and not fragile. If the length of the plugging plate body 8 exceeds 2.4m, large deformation is easy to generate in the production, installation and transportation processes of the plugging plate, and finally the surface of the hole or the end part of the wall 10 after plugging is finished is uneven, so that the plugging effect and the installation of doors and windows are directly influenced. Therefore, when the length of the plugging plate body 8 is larger than 2.4m, the plugging plate body is required to be split into a plurality of plugging plate members with the same length for splicing use, and the quality after plugging is ensured. Meanwhile, the standardization of components can be realized.

In one embodiment of the present disclosure, see fig. 4 for a schematic illustration of the placement of rebar within closure panels in a composite shear wall of the present disclosure. The inside of shutoff board body 8 has buried the reinforcing bar net piece underground, and the reinforcing bar net piece includes along the vertical reinforcing bar 12 of 8 longitudinal extensions of shutoff board body and along the horizontal reinforcing bar 13 of 8 horizontal extensions of shutoff board body. The transverse steel bars 13 extend out of the plugging plate body 8; the transverse bars 13 form projecting bars 13. It is easy to understand, because the width of the plugging plate body 8 is not large, two sides close to the width direction of the plugging plate body 8 are respectively provided with a longitudinal steel bar 12, and the longitudinal steel bars 12 are all embedded in the precast concrete of the plugging plate body 8 when being precast. A plurality of transverse reinforcing bars 13 are arranged at intervals along the longitudinal direction of the closure panel body 8, and each transverse reinforcing bar 13 is connected with each longitudinal reinforcing bar 12 by welding.

Optionally, the longitudinal reinforcement 12 is arranged in the closure body 8 closer to the cavity 11, i.e. in the sectional view of the closure shown in fig. 4, the longitudinal reinforcement 12 is arranged further up the centre line in relation to the upper and lower position of the section of the closure. After the construction of the superposed shear wall is completed, the concrete poured in the cavity 11 of the superposed member is arranged on the side close to the cavity 11, and the plugging plate is not directly exposed in the air, so that the protective layer of the longitudinal steel bar 12 of the plugging plate can not meet the requirement of the minimum protective layer thickness. This arrangement also contributes to reducing the overall thickness of the closure panel. The dimension c in the figure is the thickness of the protective layer of the longitudinal steel bar 12 of the plugging plate.

Plugging plate

The plugging plate comprises a plugging plate body 8 formed by prefabricating concrete and a reinforcing mesh arranged on the plugging plate body 8. The mesh reinforcement comprises longitudinal reinforcement 12 and transverse reinforcement 13. It will be readily appreciated that the longitudinal reinforcing bars 12 extend longitudinally of the closure panel body 8; the transverse reinforcement 13 extends in the transverse direction of the closure plate body 8. The longitudinal steel bars 12 are completely embedded in the plugging plate body 8, the transverse steel bars 13 form extending steel bars 13, one part of the extending steel bars is embedded in the plugging plate body 8, and the other part of the extending steel bars extends out of the plugging plate body 8. The plugging plate can adopt different embodiments according to different rib outlet modes of the extending reinforcing steel bars 13.

In one embodiment of the present disclosure, referring to the schematic views of an embodiment of the closure panel in the laminated shear wall of the present disclosure shown in fig. 5a and 5b, dimension t represents the closure panel thickness; dimension B represents the closure panel width. The plugging plate body 8 is in a rectangular parallelepiped shape. The blanking panel body 8 comprises a first face facing the cavity 11 and a second face opposite to the first face. The extending reinforcing steel bars 13 extend out of the first surface of the plugging plate body 8, that is, two end parts of the transverse reinforcing steel bars 13 extend out of the first surface respectively and extend obliquely to two sides of the width direction of the plugging plate body 8 respectively, and an included angle between the extending direction of the extending reinforcing steel bars 13 and the normal line of the first surface is an acute angle. The rib is arranged on the first surface of the plugging plate body 8, the rib punching holes are not required to be reserved on the side mold during the production of the plugging plate, the production is convenient, the molds of a plurality of plugging plates can be shared, and the cost is saved.

Further, the blocking plate of this embodiment may be provided on the upper and both sides of the opening 9 and the end of the wall 10. That is, it may be provided at a position other than the lower side of the window where the cavity 11 needs to be blocked. The part of the extending steel bars 13 extending out of the plugging plate body 8 is embedded in the wall body 10, and the plugging plate is connected with the wall body 10 when the wall body 10 is prefabricated.

In one embodiment of the present disclosure, see fig. 5c and 5d for schematic illustrations of an embodiment of a closure panel in a laminated shear wall of the present disclosure. The plugging plate body 8 is in a rectangular parallelepiped shape. The blanking panel body 8 comprises a first face facing the cavity 11 and a second face opposite to the first face. The projecting reinforcing bars 13 project from the first face of the closure panel body 8, that is, both ends of the transverse reinforcing bars 13 project from the first face, respectively, and extend in a direction perpendicular to the first face on both sides in the width direction of the closure panel body 8, respectively. The rib is arranged on the first surface of the plugging plate body 8, the rib punching holes are not required to be reserved on the side mold during the production of the plugging plate, the production is convenient, the molds of a plurality of plugging plates can be shared, and the cost is saved.

Further, the plugging plate of this embodiment is mainly used to be disposed at the lower side of the hole 9. The part of the extending steel bar 13 extending out of the plugging plate body 8 is buried in the concrete poured in the cavity 11. That is, the plugging plate disposed under the opening 9 is installed in the construction site after the concrete is poured into the cavity 11 under the window.

In each of the above embodiments of the plugging plate, the edges of both sides of the first face and/or the second face of the plugging plate body 8 may be provided with chamfers, as shown in fig. 5a, 5 d. Or the chamfer angle is not arranged, and each edge is a right angle, as shown in fig. 5b and 5c, so that the plugging plate is convenient to manufacture. The edges on both sides are edges extending longitudinally along the plugging plate body 8, that is, edges on both sides in the width direction of the plugging plate body 8. The purpose of the chamfers is to facilitate pressing the panel into the concrete of the second panel 19 during production of the prefabricated wall 10 and panel. In the embodiment of the plugging plate adopted at the lower side of the opening 9, chamfers can be arranged at edges at two sides of the first surface (namely the rib surface) of the plugging plate body 8, so that the plugging plate is more favorable for being pressed into post-cast concrete in the cavity 11 of the superposed shear wall.

In one embodiment of the present disclosure, see fig. 5e for a schematic view of an embodiment of a closure panel in a laminated shear wall of the present disclosure. The plugging plate body 8 is in a rectangular parallelepiped shape. The closure panel body 8 includes a first side surface facing the first-side prefabricated panel 17 and a second side surface facing the second-side prefabricated panel 19, that is, both side surfaces of the closure panel body 8 in the width direction. The projecting reinforcing bars 13 project perpendicularly to the first and second side faces, respectively. In this embodiment, ribs are formed on both side surfaces in the width direction of the plugging plate body 8. Two extending ends of the transverse steel bars 13 do not need to be bent, the steel bar mesh of the plugging plate is convenient to manufacture, but a perforation needs to be reserved on the side die when the plugging plate is produced, and therefore the production difficulty is increased relative to a mode of leading out the bars from the first face.

Referring to fig. 6, an illustrative diagram illustrating the orientation of the window opening in wall 10 is shown. When the prefabricated wall 10 and the plugging plate member are produced, the upper side, the left side and the right side of the window on the wall 10 and the cavity 11 at the end of the wall 10 can be plugged by using the plugging plates of the embodiment shown in fig. 5a or 5b, the plugging structure of the plugging plates can be embedded in the wall 10 by referring to the schematic connection mode of the plugging plates arranged on the upper side, the left side and the right side of the window and the end of the wall 10 in the disclosed superposed shear wall shown in fig. 7, and the protruding reinforcing steel bars 13 are embedded in the wall 10. The closure panels at these locations need to be factory fabricated with the prefabricated wall 10 components into a unitary structure, such as the window-top or window-side laminated shear wall 14 of fig. 7.

Referring to fig. 8, a schematic view of the connection of the closure plate disposed at the lower side of the window in the disclosed superposed shear wall is shown. The lower blocking plate of the window adopts the embodiment shown in fig. 5c or 5d, the protruding reinforcing steel bars 13 are embedded in the concrete poured in the cavity 11, and the lower blocking plate of the window on the wall 10 is installed on site after the concrete is poured in the cavity 11 at the lower side of the window. That is, the lower closure plate is pressed into the open cavity 11 at the lower side of the window opening to close the window, such as the window bottom superimposed shear wall 15 in fig. 8.

In one embodiment of the present disclosure, refer to a schematic view of the plugging position of the plugging plate disposed at the end of the wall body 10 in the present disclosure of the superimposed shear wall shown in fig. 9. The plugging plates arranged at the end parts of the wall body 10 extend downwards from the top part of the wall body 10 to a position with a certain height away from the bottom part of the wall body 10, so that an observation port 16 is reserved at the lower part of the wall body 10, and the interference condition of the inserted bars and the horizontal transverse bars can be conveniently observed when the components are installed.

Manufacturing process of the disclosed superposed shear wall

One of the prefabricated panels of the laminated shear wall, for example, the first prefabricated panel 17, is defined as an A-side prefabricated panel 17, and the other prefabricated panel, for example, the second prefabricated panel 19, is defined as a B-side prefabricated panel 19. Referring to fig. 10a to 10d, schematic views of states of steps in a manufacturing process of the laminated shear wall of the present disclosure are shown. The manufacturing process comprises the following steps:

1. when the A-surface precast slab 17 is produced, concrete is poured into the side mold 18 to form the A-surface precast slab 17; one side of the prefabricated and formed plugging plate is anchored into the inner side of the prefabricated concrete of the A surface of the superposed shear wall, the first surface and the second surface of the plugging plate are perpendicular to the wall surface of the prefabricated plate, meanwhile, the depth of embedding one side of the plugging plate body 8 into the superposed shear wall is not less than 10mm, the prefabricated plate 17 of the A surface of the superposed shear wall after maintenance and the prefabricated plugging plate form an integral prefabricated component, see fig. 10a, and the prefabricated component is provided with a plugging plate 6 at the end part of a wall body 10, a window side plugging plate 2, a window top plugging plate 1, a door side plugging plate 4 and a door top plugging plate 5.

2. According to the production process of the superposed shear wall, when the B-surface precast slab 19 is produced, the blocking slab and the A-surface precast slab 17 of the superposed shear wall are integrally turned over for 180 degrees along with the die table, as shown in fig. 10B.

3. And pressing the turned A-surface precast slab 17 and the turned plugging slab of the superposed shear wall into a B-surface precast slab 19 formed after concrete is poured, wherein the pressing depth is not less than 10mm, and the drawing is shown in the figure 10c and the figure 10 d.

4. In order to ensure that concrete is poured compactly in the cavity 11 of the wall 10 on the lower side of the window, after concrete is poured in the cavity 11 on the lower side of the window of the wall 10 on the construction site, the performance of the concrete in the cavity 11 is observed, when the concrete slump is small, the concrete is vibrated compactly by adopting a vibrating rod, and the window bottom plugging plate 3 is installed. When the concrete slump is large, the concrete in the cavity 11 of the wall 10 at the lower side of the window can be ensured to be dense, and the window bottom plugging plate 3 can be directly installed in place, namely pressed into the open position of the cavity 11 at the lower side of the window. During installation, the extending reinforcing steel bars 13 of the window bottom plugging plate 3 are anchored into the cast-in-place concrete of the cavity 11, and after the installation is completed, the window bottom plugging plate 3 is fixed by a construction tool, so that the window bottom plugging plate 3 is prevented from shifting due to pressure generated by the concrete when the concrete of the cavity 11 at the upper part of the superposed shear wall is poured.

Optionally, the cavity 11 at the lower side of the window of the superimposed shear wall 10 may also be directly plugged by a wood template or an aluminum template during construction, and the window bottom plugging plate 3 is not used for plugging.

The plugging plate adopted by the superposed shear wall is simple in appearance, no rib is produced at the plate end, and the superposed shear wall is convenient to process. When the wall 10 prefabricated part is produced, the side faces of the doors and the windows and the end parts of the wall 10 are plugged by the plugging plates, so that the template operation amount and the construction process during site construction can be greatly reduced, and the construction speed can be increased. The plugging plate is made of common concrete and is made of the same material as the superposed shear wall prefabricated wall body 10, the integrity of a plugging interface is ensured after the combination is finished, and the cracking of a seam of the plugging interface caused by the inconsistent material properties is avoided.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A laminated shear wall, comprising:

2. A laminated shear wall of claim 1, wherein the closure panel comprises a closure panel body and projecting reinforcing bars;

3. A laminated shear wall of claim 2, wherein a mesh of reinforcing bars is embedded within the closure plate body, the mesh of reinforcing bars including longitudinal reinforcing bars extending longitudinally of the closure plate body and transverse reinforcing bars extending transversely of the closure plate body; the transverse steel bars extend out of the plugging plate body; the transverse reinforcement forms the projecting reinforcement.

4. A laminated shear wall of claim 2, wherein the closure panel body is cuboid in shape; the closure plate body comprises a first face facing the cavity and a second face opposite the first face;

5. A laminated shear wall of claim 2, wherein the closure panel body is cuboid in shape; the closure plate body includes a first face facing the cavity; and a second face opposite the first face;

6. A laminated shear wall of claim 2, wherein the closure panel body is cuboid in shape; the blocking plate body comprises a first side surface facing the first prefabricated plate and a second side surface facing the second prefabricated plate;

7. A laminated shear wall of claim 4 or claim 5, wherein the edges of the sides of the first and/or second faces of the closure panel body are chamfered.

8. A laminated shear wall of claim 5, wherein said closure plate is disposed on the underside of said opening; and the part extending out of the plugging plate body extends out of a steel bar and is embedded in the concrete poured in the cavity.

9. A laminated shear wall of claim 3, wherein the longitudinal reinforcement is disposed within the closure panel body closer to the cavity.

10. A laminated shear wall of claim 1, wherein the wall body is provided with a preformed viewing port at an end thereof.