Prefabricated rib plate double-sided laminated shear wall

Abstract

The invention relates to the technical field of building structures, and discloses a prefabricated rib plate double-faced laminated shear wall which comprises a plurality of prefabricated rib plate sets and a plurality of vertical connecting steel bars, each prefabricated rib plate set comprises two prefabricated rib plates perpendicular to the ground, and the two prefabricated rib plates are arranged in the first horizontal direction at intervals; the edges of the prefabricated rib plate sets are spliced in the vertical direction or spliced in the first horizontal direction and the second horizontal direction to form the shear wall, a plurality of grooves are formed in the pouring face of the prefabricated rib plate, and the grooves penetrate through the two ends of the prefabricated rib plate in the vertical direction. The multiple grooves are formed in the second horizontal direction at intervals and communicate with the cavity, and the first horizontal direction is perpendicular to the second horizontal direction; the multiple vertical connecting steel bars are arranged in the multiple grooves so that the vertical connecting steel bars can be far away from the neutralizing shafts of the prefabricated rib plates, and the multiple vertical connecting steel bars are used for being connected with the multiple prefabricated rib plate sets in the vertical direction.

Description

Technical Field

[0001] The present application relates to the technical field of building structures, and in particular to a prefabricated ribbed double-sided composite shear wall. Background Art

[0002] Double-sided composite shear walls are widely used in vertical lateral force resisting components of prefabricated buildings due to their high factory production efficiency, convenient construction, and in-plane force performance similar to that of cast-in-place shear walls. This prefabricated component is mainly composed of prefabricated wall panels with two sides connected by truss bars to form a cavity, and a composite shear wall with good integrity is formed by pouring concrete in the cavity on site.

[0003] During the construction process, the existing double-sided composite shear wall products are located at the floor elevation, and the upper and lower walls and panels are spliced ​​to form horizontal seams. Since the vertical connecting steel bars at the horizontal seams are very close to the center line of the wall body, it is not conducive to the external force of the composite shear wall. This structural connection method makes the horizontal seam a weak point of the double-sided composite shear wall, causing the double-sided composite shear wall to form a through seam damage along the horizontal seam under the action of horizontal force, which is not conducive to the earthquake resistance of the building structure. Summary of the invention

[0004] The embodiment of the present application discloses a prefabricated ribbed double-sided composite shear wall, which can enable the vertical connecting steel bars of the horizontal seam to be arranged on the outside farther from the center line of the wall, which is beneficial to the external force of the composite wall, so that the vertical connecting steel bars are closer to the vertical distribution bars in the wall body, thereby improving the out-of-plane bending resistance of the composite wall and reducing the occurrence of through-seam damage along the horizontal seam of the composite wall.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application discloses a prefabricated rib plate double-sided composite shear wall, comprising:

[0006] A plurality of precast rib plate groups, each of which comprises two precast rib plates perpendicular to the ground, the two precast rib plates being spaced apart in a first horizontal direction to form a cavity for pouring concrete on site, the edges of the plurality of precast rib plate groups being spliced ​​in a vertical direction or in a horizontal direction to form a shear wall, the casting surface of the precast rib plates being provided with a plurality of grooves, the plurality of grooves being vertically penetrating through both ends of the precast rib plates, the plurality of grooves being spaced apart in a second horizontal direction, the plurality of grooves being in communication with the cavity, the first horizontal direction being perpendicular to the second horizontal direction;

[0007] A plurality of vertical connecting steel bars are arranged in the plurality of grooves so as to keep the vertical connecting steel bars away from the neutral axis of the prefabricated rib plates, and the plurality of vertical connecting steel bars are used to connect the plurality of prefabricated rib plate groups in a vertical direction.

[0008] As an optional manner, the distance from the bottom of the multiple grooves to the outer surface of the precast rib is L1, the distance from the casting surface of the precast rib to the outer surface of the precast rib is L2, and L1 is 0.3-0.5 times of L2.

[0009] As an optional manner, the L2 is 200mm-400mm, and the L1 is 30mm-45mm;

[0010] or

[0011] The L2 is greater than 400 mm, and the L1 is 30 mm-100 mm.

[0012] As an optional manner, a partition is formed between two adjacent grooves, and the partition passes through both ends of the prefabricated rib plate in a vertical direction.

[0013] As an optional manner, the prefabricated rib is further provided with a plurality of vertical distribution ribs, the plurality of vertical distribution ribs are arranged in the partition, the prefabricated rib is further provided with a plurality of horizontal distribution ribs arranged along the horizontal direction, the plurality of horizontal distribution ribs are arranged between the outer surface of the prefabricated rib and the bottom of the groove, and the horizontal distribution ribs abut against the side of the plurality of vertical distribution ribs away from the casting surface.

[0014] As an optional manner, the distance from the side of the horizontal distribution rib close to the outer surface of the prefabricated rib to the outer surface of the prefabricated rib is 15 mm-20 mm.

[0015] As an optional manner, the prefabricated rib group is further provided with a plurality of truss bars, and the plurality of truss bars are arranged in the cavity at intervals along the horizontal direction, one end of each of the truss bars is connected to the plurality of partitions of one of the two prefabricated ribs, each of the truss bars passes through both ends of the prefabricated ribs along the vertical direction, and the other end of each of the truss bars is connected to the plurality of vertical distribution bars of the other of the two prefabricated ribs.

[0016] As an optional manner, the center distance between two adjacent truss ribs along the second horizontal direction is 300mm-400mm.

[0017] As an optional manner, the width of each groove is 50 mm-100 mm, and the width of each partition is 100 mm-150 mm.

[0018] As an optional method, the prefabricated ribbed double-sided composite shear wall further includes:

[0019] A plurality of edge members, wherein the edge members are arranged between two adjacent prefabricated rib plate groups in a horizontal direction;

[0020] A plurality of horizontal connecting steel bars are provided in two adjacent precast rib plate groups through the edge members in a horizontal direction and connected to the concrete poured in the cavity. The plurality of horizontal connecting steel bars are used to connect the plurality of edge members and the precast rib plate groups in a horizontal direction.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The embodiment of the present application sets grooves on the casting surface of the prefabricated rib plate so that the vertical connecting steel bars can be set in the grooves, which are far away from the neutral axis of the wall, which is beneficial to the external force of the composite wall, so that the vertical connecting steel bars are closer to the vertical distribution bars in the wall body, thereby improving the out-of-plane bending performance of the composite wall and reducing the occurrence of through-crack damage along the horizontal seams of the composite wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A structural schematic diagram of a prefabricated ribbed double-sided composite shear wall in this application;

[0025] Figure 2 A schematic diagram of the structure of the prefabricated rib plate in this application;

[0026] Figure 3 Another structural schematic diagram of the prefabricated ribbed double-sided composite shear wall in this application.

[0027] Description of reference numerals:

[0028] 100-precast rib double-sided composite shear wall; 10-precast rib group; 101-precast rib; 1011-groove; 1011A-groove bottom; 1012-partition; 1013-vertical distribution reinforcement; 1014-horizontal distribution reinforcement; 101A-casting surface; 101B-external surface; 102-cavity; 103-truss reinforcement; 11-vertical connecting steel bars; 12-edge member; 13-horizontal connecting steel bars; 14-composite floor; 15-horizontal joint; F-neutral axis; A-casting surface; B-external surface; X-first horizontal direction; Y-second horizontal direction; Z-vertical direction; L1-distance from the bottom of the groove to the outer surface of the precast rib; L2-distance from the casting surface of the precast rib to the outer surface of the precast rib. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] In the present application, the terms "upper", "lower", "top", "bottom", "inner", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0034] Double-sided composite shear wall is a vertical lateral force resisting component in prefabricated buildings. It has been widely used in modern buildings due to its high efficiency brought by factory production, convenient on-site construction and in-plane force performance similar to cast-in-place shear wall. This component consists of two prefabricated wall panels connected by truss bars to form a cavity, which is then filled with concrete at the construction site to achieve a firm connection between the wall panels and form a composite shear wall with strong integrity.

[0035] However, the existing double-sided composite shear wall has a significant structural defect in practical application, that is, at the floor elevation, the splicing of the upper and lower wall panels and the floor slab will produce horizontal seams. In this structure, the position of the vertical connecting steel bars is too close to the center line of the wall, which not only affects the performance of the composite shear wall under external forces, but also makes the horizontal seam the weak link of the entire structure. Under the action of horizontal forces, especially seismic forces, double-sided composite shear walls are prone to form through cracks along the horizontal seams, thereby weakening the seismic resistance of the building structure and posing a potential threat to building safety.

[0036] Based on this, an embodiment of the present application discloses a prefabricated ribbed double-sided composite shear wall. By setting grooves on the casting surface of the prefabricated ribbed plates, the vertical connecting steel bars can be set in the grooves, which are farther away from the center line of the wall, which is beneficial to the external force of the composite wall, so that the vertical connecting steel bars are closer to the vertical distribution bars in the wall body, thereby improving the out-of-plane bending performance of the composite wall and reducing the occurrence of through-crack damage along the horizontal seams of the composite wall.

[0037] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0038] See also Figures 1 to 3 ,in, Figure 1 A structural schematic diagram of a prefabricated ribbed double-sided composite shear wall in this application; Figure 2 A schematic diagram of the structure of the prefabricated rib plate in this application Figure 3 Another structural schematic diagram of the prefabricated ribbed double-sided composite shear wall in this application.

[0039] The embodiment of the present application discloses a prefabricated ribbed double-sided composite shear wall 100, and the prefabricated ribbed double-sided composite shear wall 100 includes:

[0040] A plurality of precast rib groups 10, each of which comprises two precast ribs 101 perpendicular to the ground, the two precast ribs 101 being spaced apart along a first horizontal direction X to form a cavity 102 for pouring concrete on site, the edges of the plurality of precast rib groups 10 being spliced ​​along a vertical direction Z or along a first horizontal direction X and a second horizontal direction Y to form a shear wall, a plurality of grooves 1011 being provided on a casting surface A of the precast rib 101, the plurality of grooves 1011 being passed through both ends of the precast rib 101 along the vertical direction Z, the plurality of grooves 1011 being spaced apart along a second horizontal direction Y, the plurality of grooves 1011 being connected to the cavity 102, and the first horizontal direction X being perpendicular to the second horizontal direction Y;

[0041] A plurality of vertical connecting steel bars 11 are arranged in the plurality of grooves 1011 so as to keep the vertical connecting steel bars 11 away from the neutral axis F of the prefabricated rib plate 101 , and the plurality of vertical connecting steel bars 11 are used to connect the plurality of prefabricated rib plate groups 10 in the vertical direction.

[0042] Specifically, the neutral axis F refers to the axis position where the normal stress of the component section is equal to zero in material mechanics. For a beam with a rectangular cross-section, when the upper part of the beam is compressed and the lower part is pulled, there is a line that is neither pulled nor compressed. This axis is the neutral axis F. The farther from the neutral axis F, the greater the force. The neutral axis F is the center line of the cavity 102 in the vertical direction. A plurality of vertical connecting steel bars are arranged in a plurality of grooves 1011, which increases the distance between the vertical connecting steel bars and the neutral axis F. Under the action of the out-of-plane bending moment, the role of the steel bars can be better exerted to achieve better out-of-plane bending resistance. The edges of the plurality of prefabricated rib plate groups 10 are spliced ​​along the vertical direction Z, wherein the edges refer to the upper and lower edges of the plurality of prefabricated rib plate groups 10, and the edges of the plurality of prefabricated rib plate groups 10 are spliced ​​along the first horizontal direction X and the second horizontal direction Y, wherein the edges refer to the left and right edges of the plurality of prefabricated rib plate groups 10.

[0043] See also Figure 2 , the distance from the bottom of the multiple grooves 1011 to the outer surface B of the precast rib 101 is L1, the distance from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101 is L2, and the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 is 0.3-0.5 times the distance L2 from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101. When the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 is less than 0.3 times the distance L2 from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101, the thickness of the precast rib 10 is insufficient to provide the bending rigidity required for transportation and installation. When the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 is greater than 0.5 times the distance L2 from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101, it is impossible to increase the distance between the vertical connecting steel bar and the neutral axis F, and by controlling the groove 1011 By optimizing the ratio of the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 and the distance L2 from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101, materials such as concrete can be used more reasonably, excessive or insufficient use can be avoided, and the efficiency of material use can be optimized. In earthquake-prone areas, by optimizing the ratio of the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 and the distance L2 from the casting surface A of the precast rib 101 to the outer surface B of the precast rib 101, the connection nodes of the precast components are more reliable and the seismic performance of the nodes is improved.

[0044] Specifically, when the distance L2 from the casting surface of the precast rib to the outer surface of the precast rib is 200mm-400mm, that is, the shear wall is applied to buildings such as residential buildings, L1 is 30mm-45mm; when the distance L2 from the casting surface of the precast rib to the outer surface of the precast rib is greater than 400mm, that is, the shear wall is applied to office buildings or other underground structures, the distance L1 from the bottom of the groove 1011 to the outer surface B of the precast rib 101 is 30mm-100mm.

[0045] In some embodiments, a partition 1012 is formed between two adjacent grooves 1011, and the partition 1012 passes through both ends of the precast rib 101 along the vertical direction Z. The partition 1012 can improve the bending stiffness of the panel. Under the same amount of concrete, the partition 1012 and the groove 1011 are provided on the precast rib 101, which changes the cross-sectional shape of the precast rib 101. Compared with ordinary flat-plate precast panels, the precast rib 101 provided with the partition 1012 and the groove 1011 has stronger bending stiffness than ordinary flat-plate precast panels. On the other hand, the spacing between the multiple grooves 1011 is the same, and the formation of multiple partitions 1012 can facilitate processing, reduce the difficulty in processing, and reduce the generation of processing waste.

[0046] Specifically, the heights of the above-mentioned multiple partitions 1012 are all equal and are all 20mm-100mm. When the height of the partition 1012 is less than 20mm, it is difficult to provide the bending rigidity required for transportation and installation. When the height of the partition 1012 is greater than 100mm, although it can provide sufficient bending rigidity, it affects the integrity of the prefabricated rib group 10 and the convenient construction characteristics of the prefabricated rib 101 during transportation and hoisting.

[0047] In order to increase the seismic performance of the prefabricated rib 101, please refer to Figure 1 and Figure 2 In some embodiments, a plurality of vertical distribution ribs 1013 are further provided in the prefabricated rib plate 101 , and the plurality of vertical distribution ribs 1013 are arranged in the partition portion 1012 .

[0048] Among them, the vertical distribution reinforcement 1013 is combined with the partition 1012 inside the prefabricated rib 101, and can provide additional bearing capacity in the vertical direction compared to the case where the vertical distribution reinforcement 1013 is not arranged in the partition 1012; the vertical distribution reinforcement 1013 helps to improve the force distribution inside the prefabricated rib 101, reduce stress concentration, and thus improve the ductility and toughness of the structure; the setting of the vertical distribution reinforcement 1013 can improve the seismic performance of the prefabricated rib 101 under earthquake action, and reduce potential damage by providing more energy dissipation paths.

[0049] Optionally, see Figure 2The precast rib 101 is also provided with a plurality of horizontal distribution ribs 1014 arranged along the horizontal direction. The plurality of horizontal distribution ribs 1014 are arranged between the outer surface B of the precast rib 101 and the bottom of the groove 1011. The plurality of horizontal distribution ribs 1014 abut against the side of the plurality of vertical distribution ribs 1013 away from the casting surface 101A.

[0050] First, the horizontal distribution reinforcement 1014 can significantly enhance the lateral stability of the prefabricated rib 101, prevent excessive lateral deformation when subjected to lateral force, and improve the overall stiffness and stability of the structure; second, the combination of the horizontal distribution reinforcement 1014 and the vertical distribution reinforcement 1013 forms a grid-like steel bar system, which increases the bearing capacity of the structure in the vertical direction and improves its shear strength in the horizontal direction.

[0051] Specifically, the distance from the side of the horizontal distribution rib 1014 close to the outer surface 101B of the prefabricated rib 101 to the outer surface 101B of the prefabricated rib 101 is 15 mm-20 mm.

[0052] First, the distance from the side of the horizontal distribution bar 1014 close to the outer surface 101B of the precast rib 101 to the outer surface 101B of the precast rib 101 is the thickness of the steel bar protective layer, that is, the distance between the steel bar and the outer surface 101B of the concrete. The protective layer can isolate the steel bar from the external environment, reduce the contact with water, oxygen and corrosive substances, thereby extending the service life of the steel bar. Maintaining a certain thickness of the protective layer is conducive to the effective transmission of stress. When the precast rib 101 is subjected to load, stress can be better transmitted between the concrete and the steel bar, thereby improving the overall bearing capacity of the structure; secondly, the protective layer thickness of 15mm to 20mm is relatively easy to achieve during construction, and it will not increase unnecessary materials and costs due to being too thick, nor will it reduce the durability and safety of the structure due to being too thin.

[0053] In some embodiments, see Figure 1 and Figure 2 The prefabricated rib group 10 is also provided with a plurality of truss bars 103, which are arranged in the cavity 102 at intervals along the horizontal direction, one end of the plurality of truss bars 103 is connected to a plurality of partitions 1012 of one of the two prefabricated ribs 101, and the other end of the plurality of truss bars 103 is connected to a plurality of vertical distribution bars of the other of the two prefabricated ribs 101.

[0054] The truss bars 103 can significantly enhance the stability of the entire prefabricated rib group 10 by connecting with the prefabricated ribs 101 on both sides, especially when resisting horizontal loads and earthquakes, the truss bars 103 can improve the rigidity and integrity of the structure; the design of the truss bars 103 enables the force to be more effectively transmitted inside the prefabricated rib group 10, and through the geometric stability of the truss structure, the force can be more evenly distributed along the path of the truss bars 103, reducing local stress concentration; the provision of the truss bars 103 increases the bearing capacity of the prefabricated rib group 10, especially inside the cavity 102, the truss bars 103 can provide additional support to prevent excessive deformation of the panel in the cavity 102 area; the truss structure has high ductility and energy dissipation capacity, can absorb and disperse seismic loads, improve the seismic performance of the prefabricated rib group 10, and reduce structural damage under earthquakes; by providing the truss bars 103, the use of materials can be optimized, the amount of concrete can be reduced, and at the same time, the stability and bearing capacity of the structure can be ensured through the supporting effect of the truss bars 103.

[0055] Optionally, the center distance between two adjacent truss bars 103 is 300mm-400mm. The arrangement of truss reinforcement is crucial to the overall performance of the composite shear wall. Therefore, Appendix A.0.9 of the Technical Standard for Prefabricated Concrete Buildings GB / T51231-2016 stipulates that the center distance of the reinforcement truss should not be greater than 400mm. The present application involves a prefabricated rib composite shear wall, in which the center distance of the truss bars is within the spacing range of 300mm to 400mm. The truss bars 103 can effectively enhance the lateral stiffness of the prefabricated rib group 10 and improve the overall stability of the structure. This spacing not only ensures that the truss bars 103 can fully play their supporting role in the structure, but also avoids the waste of materials and increased construction complexity caused by too dense settings; secondly, the spacing of 300mm to 400mm is relatively easy to achieve during construction, and will not increase the construction difficulty and cost due to too small a spacing, nor will it reduce the bearing capacity and stability of the structure due to too large a spacing. This design can improve the production efficiency and installation speed of prefabricated components and reduce construction costs; the spacing range of 300mm to 400mm provides flexibility in the design of the prefabricated rib group 10, and the arrangement of the truss reinforcement 103 can be adjusted according to actual engineering requirements and load conditions to achieve optimal structural performance and economic benefits.

[0056] It should be noted that the width of the multiple grooves 1011 is 50mm-100mm, the width of the multiple partitions 1012 is 100mm-150mm, and one end of the truss reinforcement 103 needs to be connected to the partition 1012. The coordination of the width of the grooves 1011 and the partitions 1012 provides the necessary conditions for the installation of the truss reinforcement 103.

[0057] In some embodiments, see Figure 3 The prefabricated rib double-sided composite shear wall 100 also includes: a plurality of edge members 12, which are connected to the adjacent plurality of prefabricated rib groups 10 in the second horizontal direction B; a plurality of horizontal connecting steel bars 13, which pass through the edge members 12 in the horizontal direction and are arranged in two adjacent prefabricated rib groups 10 and are connected to the concrete poured in the cavity 102, and the plurality of horizontal connecting steel bars 13 are used to connect the plurality of edge members 12 and the prefabricated rib groups 10 in the horizontal direction.

[0058] Among them, in the shear wall as a whole, the edge member 12 is the member that bears the most force, and the edge member 12 is connected to multiple prefabricated rib plate groups 10 in the horizontal direction to form a stable connection point, which enhances the connection strength and stability between the prefabricated members and ensures that the structure can maintain good integrity when subjected to external forces; the horizontal connecting steel bars 13 not only strengthen the connection between the edge member 12 and the prefabricated rib plate group 10, but also improve the seismic resistance of the structure by being closely combined with the concrete poured in the cavity 102. Under the action of horizontal loads such as earthquakes, this structure can better absorb and dissipate energy and reduce structural damage.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A prefabricated ribbed double-sided composite shear wall for use in prefabricated buildings, characterized in that: The prefabricated ribbed double-sided composite shear wall comprises: A plurality of precast rib plate groups, each of which comprises two precast rib plates perpendicular to the ground, the two precast rib plates being spaced apart in a first horizontal direction to form a cavity for pouring concrete on site, the edges of the plurality of precast rib plate groups being spliced ​​in a vertical direction or in a first horizontal direction and a second horizontal direction to form a shear wall, a plurality of grooves being provided on the casting surface of the precast rib plates, the plurality of grooves penetrating through both ends of the precast rib plates in a vertical direction, the plurality of grooves being spaced apart in a second horizontal direction, the plurality of grooves being connected to the cavity, and the first horizontal direction being perpendicular to the second horizontal direction; A plurality of vertical connecting steel bars are arranged in the plurality of grooves so as to keep the vertical connecting steel bars away from the neutral axis of the prefabricated rib plates, and the plurality of vertical connecting steel bars are used to connect the plurality of prefabricated rib plate groups in a vertical direction.

2. The prefabricated ribbed double-sided composite shear wall according to claim 1, characterized in that: The distance from the bottom of the multiple grooves to the outer surface of the precast rib is L1, the distance from the casting surface of the precast rib to the outer surface of the precast rib is L2, and L1 is 0.3-0.5 times of L2.

3. The prefabricated ribbed double-sided composite shear wall according to claim 2, characterized in that: The L2 is 200mm-400mm, and the L1 is 30mm-45mm; or The L2 is greater than 400 mm, and the L1 is 30 mm-100 mm.

4. The prefabricated ribbed double-sided composite shear wall according to claim 1, characterized in that: A partition is formed between two adjacent grooves, and the partition passes through both ends of the prefabricated rib plate in a vertical direction.

5. The prefabricated ribbed double-sided composite shear wall according to claim 4, characterized in that: The prefabricated ribs are further provided with a plurality of vertical distribution ribs, which are arranged in the partition. The prefabricated ribs are further provided with a plurality of horizontal distribution ribs arranged along the horizontal direction, which are arranged between the outer surface of the prefabricated ribs and the bottom of the groove. The plurality of horizontal distribution ribs abut against the side of the plurality of vertical distribution ribs away from the casting surface.

6. The prefabricated ribbed double-sided composite shear wall according to claim 5, characterized in that: The distance from the side of the horizontal distribution rib close to the outer surface of the prefabricated rib to the outer surface of the prefabricated rib is 15 mm-20 mm.

7. The prefabricated ribbed double-sided composite shear wall according to claim 5, characterized in that: The prefabricated rib group is also provided with a plurality of truss bars, which are arranged in the cavity at intervals along the horizontal direction, one end of each of the truss bars is connected to the plurality of partitions of one of the two prefabricated ribs, each of the truss bars passes through both ends of the prefabricated ribs along the vertical direction, and the other end of each of the truss bars is connected to the plurality of vertical distribution bars of the other of the two prefabricated ribs.

8. The prefabricated ribbed double-sided composite shear wall according to claim 7, characterized in that: The center distance between two adjacent truss bars along the second horizontal direction is 300mm-400mm.

9. The prefabricated ribbed double-sided composite shear wall according to claim 8, characterized in that: The width of each groove is 50mm-100mm, and the width of each partition is 100mm-150mm.

10. The prefabricated ribbed double-sided composite shear wall according to claim 1, characterized in that: The prefabricated ribbed double-sided composite shear wall also includes: A plurality of edge members, wherein the edge members are arranged between two adjacent prefabricated rib plate groups in a horizontal direction; A plurality of horizontal connecting steel bars are provided in two adjacent precast rib plate groups through the edge members in a horizontal direction and connected to the concrete poured in the cavity. The plurality of horizontal connecting steel bars are used to connect the plurality of edge members and the precast rib plate groups in a horizontal direction.

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