Shear wall, module system and installation method of module system

Abstract

The invention belongs to the technical field of modular buildings, and particularly relates to a shear wall, a modular system and an installation method of the modular system. Longitudinal through long holes are reserved in end column areas at the two ends of a long wall and a short wall of the shear wall, a plurality of longitudinal short holes are reserved in a wall body area between the end column areas, and transverse long grooves are reserved in the bottoms of the short wall and the long wall. The through long hole, the short holes and the long groove form a communicating vessel structure, and slurry poured into the through long hole can flow towards the middle along the long groove and is pressed into the multiple short holes upwards under the pressure generated by the height difference between the through long hole and the short holes. The first module, the second module and the third module of each layer of module unit in the system are connected only through top plates, and the adjacent top plates are connected through lap joint of annular steel bars and insertion and binding of third steel bars in a post-cast strip and pouring of the post-cast strip. Therefore, the connection mode between the structure and the module of the shear wall is simple and reliable, and the integration level of the module structure and the simplicity of module construction and installation are improved.

Description

Technical Field

[0001] This invention belongs to the field of modular building technology, and particularly relates to a shear wall and modular system and a method for installing the modular system. Background Technology

[0002] In recent years, modular construction has developed rapidly. Modular construction refers to the process of breaking down a single building into modules based on its spatial structure, unit type, and functional zoning. These modules are then prefabricated in a factory, transported to the construction site, and installed to form a building entity that meets safety, reliability, and related functional requirements. Compared to traditional construction methods, modular integrated construction offers advantages such as high construction efficiency, resource conservation, environmental friendliness, and civilized construction, and has become an important direction for achieving green building and industrialization. Due to the modular breakdown, the internal walls of the structure are divided and belong to two different modules. To save materials, the walls belonging to the two modules typically form a cavity in the center, and the two prefabricated walls are combined into a composite shear wall using cast-in-place concrete.

[0003] However, modular construction still faces many problems. The most significant issue is with modular systems such as composite shear walls, formwork walls, and through-hole shear walls. These systems require extensive on-site work including rebar tying, concrete pouring, formwork enclosure, scaffolding installation, and support measures. This results in low structural integration, a large on-site workload, low construction efficiency, minimal time reduction, and high material consumption and costs. Patent CN118814978A discloses a concrete modular structure system and its construction method. In this technical solution, the internal shear walls of adjacent modules still use a semi-composite formwork method, and the top horizontal components use composite beams and composite slabs. However, this approach has several drawbacks: 1. Significant on-site work remains, including rebar tying, formwork erection, pouring, and scaffolding, impacting the construction period; 2. The shear wall end columns and the upper and lower connections of the wall body all use through-hole lap joints, resulting in a large amount of rebar and extensive pouring or grouting work; 3. The use of composite slabs for the module top slab increases the amount of support required, raising labor and material costs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a shear wall and modular system and an installation method for the modular system, thereby solving the technical problems of low structural integration of existing modular buildings, resulting in large on-site workload, low construction efficiency, insignificant shortening of construction period, large material consumption, and high cost.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] This invention provides a shear wall comprising short walls and long walls connected perpendicularly to each other, forming an L-shaped wall. Both the end column areas of the long wall and the short walls have longitudinal through holes for inserting first reinforcing bars for lap splicing when connecting the two shear walls. The wall body area between the end column areas of the long wall has multiple longitudinal short holes for accommodating second reinforcing bars extending upwards from the lower wall body area when connecting the two shear walls. The short holes are opened upwards from the bottom of the shear wall, and both the short and long walls have transverse long grooves at their bottoms. The through holes, short holes, and long grooves form a communicating vessel structure. Grout injected into the through holes flows along the long grooves towards the center and is pressed upwards into the multiple short holes under the pressure generated by the height difference between the through holes and the short holes.

[0009] Furthermore, a longitudinal cavity is reserved in the wall section of the long wall. By checking whether the height of the grout in the cavity is higher than the height of the short holes, it can be determined whether all the short holes are filled with grout.

[0010] Furthermore, an exhaust port is provided at the top of the short hole, which is connected to the outside, so that air in the short hole can be discharged at the top of the short hole as the slurry is pressed into the short hole from the bottom.

[0011] This invention also provides a modular system, including multi-layer modular units connected vertically. Each modular unit includes a first module, a second module, and a third module connected sequentially from left to right. The first, second, and third modules each include a top plate on the top surface. The first, second, and third modules are connected by two adjacent top plates, which are connected by a post-cast strip. One side of the connection between two adjacent top plates is locally thinned to expose the first U-shaped reinforcement inside the top plate. The two thinned areas form a post-cast strip. The opening direction of the first U-shaped reinforcement is facing the interior of the top plate. The first U-shaped reinforcements of the two top plates are lapped by a ring-shaped steel bar, and a third steel bar is inserted and tied in the area where the ring-shaped steel bar overlaps with the first U-shaped reinforcement. The third steel bar located above the shear wall must avoid the short hole and the second steel bar.

[0012] Furthermore, the top plate is filled with multiple weight-reducing blocks.

[0013] Furthermore, the first module includes two shear walls, a first partition wall, and a second partition wall located below the top slab. The two shear walls are located at the two left edges of the first module, and the long walls of both shear walls are arranged along the long side of the first module. The first partition wall is located between the two long walls, and the second partition wall is located on the side directly opposite the first partition wall. The second module includes two shear walls and two second partition walls located below the top slab. The two shear walls are located at the two left edges of the second module, and the long walls of both shear walls are arranged along the long side of the second module. Simultaneously, the two long walls fill the gaps on both sides of the second partition walls in the first module. The second partition wall is sandwiched in the middle, with one second partition wall located between the two long walls. One second partition wall of the second module is placed flush with the second partition wall of the first module, and the other second partition wall is located on the opposite side of the two long walls. The third module includes two shear walls, a first partition wall, and a second partition wall located below the top slab. The two shear walls are located at the two right edges of the third module, and the long walls of the two shear walls are arranged along the long side of the third module. The first partition wall is located between the two long walls, and the second partition wall is located on the opposite side of the two long walls. The second partition wall of the third module is placed flush with the other second partition wall of the second module.

[0014] Furthermore, two types of shear walls are provided, including a first shear wall and a second shear wall, which are installed alternately above and below each other; the through holes of the first shear wall and the through holes of the second shear wall are aligned, the short holes of the first shear wall and the short holes of the second shear wall are staggered, the second reinforcing bars of the first shear wall and the second reinforcing bars of the second shear wall are staggered, the short holes of the first shear wall are aligned with the second reinforcing bars of the second shear wall, and the short holes of the second shear wall are aligned with the second reinforcing bars of the first shear wall.

[0015] Furthermore, after each layer of module units is installed, a mortar strip is installed above each shear wall. The outline of the mortar strip is a circle around the edge of the shear wall. The bottom of the shear wall forms a Z-shaped cross-section due to the long groove. The outline of the mortar strip is consistent with the bottom outline of the shear wall, so that when the upper module unit is installed, the bottom surface of each shear wall in the upper layer aligns with the mortar strip on each shear wall in the lower layer. The mortar strip includes an inner pad and mortar covering the outside of the pad. The height of the mortar is higher than the height of the pad. When the upper module unit is installed, the bottom surface of the upper shear wall contacts the pad, and the mortar deforms to both sides and hardens into a solid.

[0016] Furthermore, the first, second, and third modules all include a base slab located at the bottom, which is a thin concrete slab and does not participate in structural stress. The first partition wall includes two structural columns, an upper structural beam, a lower structural beam, and multiple ALC slabs. The two structural columns are located at the left and right ends of the first partition wall, respectively. The upper structural beam is cast integrally with the top slab through an upwardly extending second U-shaped reinforcement, and the lower structural beam is cast integrally with the base slab through a downwardly extending second U-shaped reinforcement. Multiple ALC slabs are arranged in the area enclosed by the two structural columns, the upper structural beam, and the lower structural beam. The first and second partition walls have the same structure, and the thickness of the two second partition walls after assembly is equal to the thickness of one first partition wall.

[0017] This invention also provides a method for installing a modular system, comprising the following steps:

[0018] S1: Hoist the first, second, and third modules to the site without any order of installation, and grout into the through holes of the shear walls in the first, second, and third modules. Stop grouting when the height of the grout in the through holes is such that the first reinforcing bar is inserted halfway.

[0019] S2: Perform the lap splicing of the ring reinforcement and the insertion and binding of the third reinforcement in the post-cast strip of the top slab in the first module, the second module and the third module, and pour the post-cast strip between two adjacent top slabs of the first module, the second module and the third module in sequence, so that the first module, the second module and the third module are connected to form the lower module unit;

[0020] S3: Hoisting the upper module unit. During hoisting, the second reinforcing bars extending from the shear walls of the first, second, and third modules in the lower module unit are inserted into the short holes of the shear walls of the first, second, and third modules in the upper module unit.

[0021] S4: Insert the first reinforcing bar into the through hole of the shear wall of the upper module unit. The first reinforcing bar falls into the through hole of the lower module unit. At this time, the lower half of the first reinforcing bar is located in the through hole of the lower module unit, and the upper half of the first reinforcing bar is located in the through hole of the upper module unit.

[0022] S5: Grout into the through hole of the upper module unit, and stop grouting when the height of the grout in the through hole of the upper module unit is such that the first steel bar is inserted halfway.

[0023] S6: Perform the lap splicing of the ring reinforcement and the insertion and binding of the third reinforcement in the post-cast strip of the top slab in the first, second and third modules of the upper module unit, and then sequentially cast the post-cast strip between two adjacent top slabs of the first, second and third modules of the upper module unit, so that the first, second and third modules of the upper module unit are connected to form the upper module unit.

[0024] S7: Repeat S3-S6 to continue installing the next upper-level module unit.

[0025] (III) Beneficial Effects

[0026] The beneficial effects of this invention are:

[0027] The present invention discloses a shear wall and modular system and an installation method for the modular system. Longitudinal through holes are pre-reserved at both ends of the long wall and in the short wall for placing the first reinforcing bar for lap splicing when connecting the upper and lower shear walls. Multiple longitudinal short holes are pre-reserved in the wall body area between the end column areas at both ends of the long wall for accommodating the second reinforcing bar extending upwards from the lower wall body area when connecting the upper and lower shear walls. Transverse long grooves are pre-reserved at the bottom of both the short wall and the long wall. The through holes, short holes, and long grooves form a communicating vessel structure, allowing the grout injected into the through holes to flow along the long grooves towards the center and be pressed upwards into the multiple short holes under the pressure generated by the height difference between the through holes and the short holes.

[0028] Furthermore, the connection between the first, second, and third modules of each module unit is only through their respective top plates. The connection between adjacent top plates is achieved by lapping the ring reinforcement in the reserved post-pouring strip and inserting and binding the third reinforcement, followed by pouring the post-pouring strip.

[0029] Compared to existing technologies, the shear wall is a fully prefabricated beamless shear wall, and the top slab is also a fully prefabricated top slab. The connection between modules is simple and reliable, which greatly improves the integration of the modular structure and the ease of modular construction and installation, thereby further reducing the workload on site. It satisfies the safety of the structural system and improves the construction and installation efficiency of modular buildings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the modular system structure;

[0031] Figure 2 This is a planar diagram showing the splicing positions of the modular system;

[0032] Figure 3 This is a structural diagram of the first module;

[0033] Figure 4 This is a structural diagram of the second module;

[0034] Figure 5 This is a structural diagram of the third module;

[0035] Figure 6 This is a top view of the shear wall;

[0036] Figure 7 This is a bottom view of the shear wall;

[0037] Figure 8This is a structural schematic diagram of a shear wall;

[0038] Figure 9 This is a structural diagram showing the connection between two shear walls of different heights.

[0039] Figure 10 for Figure 9 A cross-sectional structural diagram of the short opening in the upper and middle shear walls;

[0040] Figure 11 for Figure 9 A cross-sectional view of the through-hole;

[0041] Figure 12 This is a schematic diagram of the connection node structure at the second partition wall of the upper and lower module units in the modular system.

[0042] Figure 13 This is a schematic diagram of the connection node structure at the second partition wall in the modular unit;

[0043] Figure 14 This is a schematic diagram of the connection node structure at the shear wall of the upper and lower module units in the modular system.

[0044] Figure 15 This is a schematic diagram of the connection node structure at the shear wall in the modular unit.

[0045] [Explanation of Labels in the Attached Image]

[0046] 1: Shear wall; 11: Short wall; 12: Long wall; 13: Through-hole; 14: First reinforcing bar; 15: Short hole; 16: Second reinforcing bar; 17: Long groove; 18: Cavity; 19: Vent hole;

[0047] 2: First partition wall; 21: Structural column; 22: Upper structural beam; 23: Lower structural beam; 24: ALC slab; 25: Second U-shaped reinforcement;

[0048] 3: Second partition wall; 4: Mortar strip;

[0049] 5: Top slab; 51: First U-shaped reinforcement; 52: Ring reinforcement; 53: Third reinforcement; 54: Weight reduction block;

[0050] 6: Base plate; 7: Safety guardrail; 8: Flexible partition; 9: Sealing component. Detailed Implementation

[0051] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0052] like Figure 1-15 As shown, the present invention provides a modular system, such as... Figure 1-5 As shown, it includes multi-layered modular units connected vertically, and each layer of modular units includes a first module, a second module, and a third module connected sequentially from left to right.

[0053] The first module includes two shear walls 1, a first partition wall 2, a second partition wall 3, a top slab 5, and a bottom slab 6. The top slab 5 is located on the top surface of the first module, and the bottom slab 6 is located on the bottom surface of the first module. The two shear walls 1, the first partition wall 2, and the second partition wall 3 are all located between the top slab 5 and the bottom slab 6. The two shear walls 1 are located at the two left edges of the first module, and the long walls 12 of the two shear walls 1 are arranged along the long side of the first module. The first partition wall 2 is located between the two long walls 12, and the second partition wall 3 is located on the side directly opposite the first partition wall 2.

[0054] The second module includes two shear walls 1, two second partition walls 3, a top plate 5, and a bottom plate 6. The top plate 5 is located on the top surface of the second module, and the bottom plate 6 is located on the bottom surface of the second module. The two shear walls 1 and the two second partition walls 3 are located between the top plate 5 and the bottom plate 6. The two shear walls 1 are located at the two left edges of the second module, respectively. The long walls 12 of the two shear walls 1 are both located along the long side of the second module. At the same time, the two long walls 12 fill the gaps on both sides of the second partition wall 3 in the first module, sandwiching the second partition wall 3 in the middle. One second partition wall 3 is located between the two long walls 12, and one second partition wall 3 of the second module is placed close to the second partition wall 3 of the first module. The other second partition wall 3 is located on the opposite side of the two long walls 12.

[0055] The third module includes two shear walls 1, a first partition wall 2, a second partition wall 3, a top plate 5, and a bottom plate 6. The top plate 5 is located on the top surface of the third module, and the bottom plate 6 is located on the bottom surface of the third module. The two shear walls 1, the first partition wall 2, and the second partition wall 3 are all located between the top plate 5 and the bottom plate 6. The two shear walls 1 are located at the two right edges of the third module, and the long walls 12 of the two shear walls 1 are both located along the long side of the third module. The first partition wall 2 is located between the two long walls 12, and the second partition wall 3 is located on the opposite side of the two long walls 12. The second partition wall 3 of the third module is placed in close contact with another second partition wall 3 of the second module.

[0056] like Figure 12-15As shown, the first module, the second module and the third module are connected by two adjacent top plates 5, and the two adjacent top plates 5 are connected by a post-pouring strip.

[0057] Specifically, the side where two adjacent top slabs 5 connect is locally thinned, exposing the first U-shaped reinforcement 51 inside both top slabs 5. The two thinned areas form a post-cast strip for lapping the first U-shaped reinforcement 51 of the two adjacent top slabs 5. The opening direction of the first U-shaped reinforcement 51 is facing the interior of the top slab 5. The first U-shaped reinforcement 51 of the two top slabs 5 are lapped together by a ring reinforcement 52, and a third reinforcement 53 is inserted and tied in the area where the ring reinforcement 52 overlaps with the first U-shaped reinforcement 51. The third reinforcement 53 located above the shear wall 1 must avoid the short hole 15 and the second reinforcement 16.

[0058] Preferably, such as Figure 10 , Figure 12-15 As shown, in order to reduce the weight of the top plate 5, the top plate 5 is filled with multiple weight-reducing blocks 54, which can be made of foam material.

[0059] like Figure 1 As shown, the top plate 5 has reserved holes on its upper surface for installing safety guardrails 7 to replace traditional scaffolding during the pouring construction after the first, second and third modules are hoisted, thereby reducing work and improving construction efficiency.

[0060] In addition, such as Figure 1 As shown, before pouring the post-pouring strip, sealing parts 9 are installed at both ends along the length of the post-pouring strip to cover the concrete poured in the post-pouring strip. However, since rain can cause the sealing parts 9 to rust, the sealing parts 9 are removed after the concrete in the post-pouring strip has solidified.

[0061] like Figure 1-11 , Figure 14-15 As shown, shear wall 1 is a fully prefabricated wall, including short wall 11 and long wall 12 that are perpendicularly connected to each other. Short wall 11 and long wall 12 form an L-shaped wall. The end column areas at both ends of long wall 12 and short wall 11 are reserved with longitudinal through holes 13 for inserting the first reinforcing bar 14 for lap splicing when the two shear walls 1 are connected. The wall body area between the end column areas at both ends of long wall 12 is reserved with multiple longitudinal short holes 15 for accommodating the second reinforcing bar 16 extending upward from the lower wall body area when the two shear walls 1 are connected. The short holes 15 are opened upward from the bottom of shear wall 1. The bottom of short wall 11 and long wall 12 are reserved with transverse long grooves 17.

[0062] It should be noted that because the end column areas at both ends of the long wall 12 and the short wall 11 are the main load-bearing areas, the first reinforcing bar 14 is thicker than the second reinforcing bar 16 in the wall body area. Since the lap length of the reinforcing bar is a multiple of its diameter, the lap length of the first reinforcing bar 14 will be very long. Therefore, through holes 13 are reserved in both the end column areas of the long wall 12 and the short wall 11. The wall body area is not a main load-bearing area, so the second reinforcing bar 16 is thinner than the first reinforcing bar 14, resulting in a shorter lap length. The corresponding short hole 15 can accommodate the lap of the second reinforcing bar 16, and the short hole 15 saves grout during subsequent pouring.

[0063] The through-hole 13, the short hole 15 and the long groove 17 form a communicating vessel structure. The slurry poured into the through-hole 13 will flow towards the middle along the long groove 17 and be pushed upward into multiple short holes 15 under the pressure generated by the height difference between the through-hole 13 and the short hole 15.

[0064] The wall section of the long wall 12 has a longitudinal cavity 18. Whether the height of the grout in the cavity 18 is higher than the height of the short holes 15 can be used to determine whether all the short holes 15 are filled with grout.

[0065] like Figure 8-10 As shown, a vent hole 19 is reserved at the top of the short hole 15. The vent hole 19 is connected to the outside so that when the slurry is pressed into the short hole 15 from the bottom, the air in the short hole 15 is discharged at the top of the short hole 15 to prevent the air from occupying the space of the short hole 15 and to ensure that the slurry can fill the short hole 15.

[0066] It should be noted that before pouring the post-cast strip, the through hole 13 of the shear wall 1 should be temporarily sealed.

[0067] It should be noted that, as Figure 8-10 , Figure 11 , Figure 14 As shown, two types of shear walls 1 are set up, including a first shear wall and a second shear wall, which are installed alternately above and below each other.

[0068] The through-hole 13 of the first shear wall and the through-hole 13 of the second shear wall are aligned. The short holes 15 of the first shear wall and the short holes 15 of the second shear wall are staggered. The second reinforcing bars 16 of the first shear wall and the second reinforcing bars 16 of the second shear wall are staggered. The short holes 15 of the first shear wall and the second reinforcing bars 16 of the second shear wall are aligned. The short holes 15 of the second shear wall and the second reinforcing bars 16 of the first shear wall are aligned, so as to facilitate the alignment and connection of the upper and lower shear walls 1 and avoid collision of the second reinforcing bars 16 of the upper and lower shear walls 1.

[0069] like Figure 10-11 , Figure 14As shown, after each layer of module units is installed, a mortar strip 4 is set above each shear wall 1. The outline of the mortar strip 4 is a circle around the edge of the shear wall 1. The bottom of the shear wall 1 forms a Z-shaped section due to the long groove 17. The outline of the mortar strip 4 is consistent with the bottom outline of the shear wall 1, so that when the upper module unit is installed, the bottom surface of each shear wall 1 in the upper layer is connected with the mortar strip 4 on each shear wall 1 in the lower layer, which replaces the traditional formwork and prevents grout leakage during subsequent pouring.

[0070] The mortar strip 4 includes a rigid pad inside and a paste-like mortar covering the outside of the pad. The height of the mortar is higher than the height of the pad. When the upper module unit is installed, the bottom surface of the upper shear wall 1 contacts the pad. The mortar deforms to both sides and hardens into a solid, thereby sealing the gap between the upper and lower modules and preventing mortar leakage.

[0071] The base plate 6 is a thin concrete slab and does not participate in the structural load.

[0072] like Figure 1-5 , Figure 12 , Figure 13 As shown, the first partition wall 2 includes two structural columns 21, an upper structural beam 22, a lower structural beam 23, and multiple ALC slabs 24. The two structural columns 21 are located at the left and right ends of the first partition wall 2, respectively. The upper structural beam 22 is cast integrally with the top slab 5 via upward-extending second U-shaped reinforcing bars 25, and the lower structural beam 23 is cast integrally with the bottom slab 6 via downward-extending second U-shaped reinforcing bars 25. The multiple ALC slabs 24 are arranged within the area enclosed by the two structural columns 21, the upper structural beam 22, and the lower structural beam 23. The upper structural beam 22 and the lower structural beam 23 enable the first partition wall 2 to be connected to the top slab 5 and the bottom slab 6, while simultaneously making the first partition wall 2 lightweight and ensuring overall rigidity.

[0073] The first partition wall 2 and the second partition wall 3 have the same structure. The thickness of the two second partition walls 3 assembled together is equal to the thickness of one first partition wall 2. The first partition wall 2 and the second partition wall 3 do not bear weight; they only serve to separate adjacent modules.

[0074] Preferably, such as Figure 15 As shown, a flexible partition 8 is provided between the shear wall 1 or the top slab 5 and the first partition wall 2 or the second partition wall 3 to separate the forces and prevent the first partition wall 2 or the second partition wall 3 from being subjected to the same force as the shear wall 1 or the top slab 5. In this embodiment, the flexible partition 8 is a foam board filled in a partition groove opened on the surface of the first partition wall 2 or the second partition wall 3 that contacts the shear wall 1 or the top slab 5.

[0075] The present invention also provides a method for installing a modular system, comprising the following steps:

[0076] S1: Hoist the first module, second module, and third module to the site in no particular order. Install safety guardrails 7 on the top plate 5 of the first, second, and third modules. Then pour the shear wall 1, that is, grout into the through hole 13 of the shear wall 1 in the first, second, and third modules. Stop grouting when the height of the grout in the through hole 13 is such that the first reinforcing bar 14 is inserted halfway.

[0077] S2: Lap the annular reinforcing bars 52 and insert and tie the third reinforcing bars 53 in the post-cast strips of the top slabs 5 in the first, second, and third modules. Install the sealing components 9, and then sequentially pour the post-cast strips between adjacent top slabs 5 in the first, second, and third modules to connect the first, second, and third modules and form the lower module unit. Note that when pouring the post-cast strips, the top of the through-hole 13 should be temporarily sealed. Then, a mortar strip 4 should be installed above the shear wall 1, and the sealing components 9 and safety guardrails 7 should be removed.

[0078] S3: Hoisting the upper module unit. During hoisting, the second reinforcing bars 16 extending from the shear wall 1 of the first, second, and third modules in the lower module unit are inserted into the short holes 15 of the shear wall 1 of the first, second, and third modules in the upper module unit.

[0079] S4: Insert the first reinforcing bar 14 into the through hole 13 of the shear wall 1 of the upper module unit. The first reinforcing bar 14 falls onto the concrete (formed by the hardened grout injected in S1) in the through hole 13 of the lower module unit. At this time, the lower half of the first reinforcing bar 14 is located in the through hole 13 of the lower module unit, and the upper half of the first reinforcing bar 14 is located in the through hole 13 of the upper module unit, thereby realizing the lap connection between the upper and lower shear walls 1.

[0080] S5: Install safety guardrails 7 on the top plate 5 of the upper module unit, and grout into the through hole 13 of the upper module unit. The grout level in the through hole 13 of the upper module unit is such that the first reinforcing bar 14 is inserted halfway, at which point grouting is stopped. During this process, the cavity 18 of the lower module unit will also be filled.

[0081] S6: Then, the ring reinforcement 52 of the post-cast strip in the top slab 5 of the first, second, and third modules of the upper module unit is lapped, and the third reinforcement 53 is inserted and tied. The sealing component 9 is installed, and the post-cast strip between the two adjacent top slabs 5 of the first, second, and third modules of the upper module unit is poured in sequence, so that the first, second, and third modules of the upper module unit are connected to form the upper module unit. It should be noted that when pouring the post-cast strip, the top of the through hole 13 should be temporarily sealed, and then a mortar strip 4 should be set above the shear wall 1. The sealing component 9 and the safety guardrail 7 should then be removed.

[0082] S7: Repeat S3-S6 to continue installing the next upper-level module unit.

[0083] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0084] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0086] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A shear wall, characterized in that, It includes short walls (11) and long walls (12) that are perpendicularly connected to each other. The short walls (11) and long walls (12) form an L-shaped wall. The end column areas at both ends of the long wall (12) and the short wall (11) are reserved with longitudinal through holes (13) for inserting the first reinforcing bar (14) for lap splicing when the two shear walls (1) are connected. The wall area between the end column areas at both ends of the long wall (12) is reserved with multiple longitudinal short holes (15) for accommodating the second reinforcing bar (16) extending upward from the lower wall area when the two shear walls (1) are connected. The short holes (15) are opened upward from the bottom of the shear wall (1). The bottom of the short wall (11) and the long wall (12) are reserved with transverse long grooves (17). The through hole (13), short holes (15) and long groove (17) form a communicating vessel structure. The slurry poured into the through hole (13) will flow along the long groove (17) towards the middle, and under the pressure generated by the height difference between the through hole (13) and the short holes (15), it will be pushed upward into multiple short holes (15).

2. The shear wall according to claim 1, characterized in that, The wall section of the long wall (12) has a longitudinal cavity (18). By checking whether the height of the grout in the cavity (18) is higher than the height of the short holes (15), it can be determined whether all the short holes (15) are filled with grout.

3. The shear wall according to claim 1, characterized in that, A vent hole (19) is provided at the top of the short hole (15). The vent hole (19) is connected to the outside so that the air in the short hole (15) can be discharged at the top of the short hole (15) during the process of the slurry being pressed into the short hole (15) from the bottom.

4. A modular system having the shear wall as described in any one of claims 1-3, characterized in that, It includes multi-layered modular units connected vertically, and each layer of modular units includes a first module, a second module, and a third module connected from left to right; The first module, the second module and the third module all include a top plate (5) located on the top surface. The first module, the second module and the third module are connected by two adjacent top plates (5), and the two adjacent top plates (5) are connected by a post-pouring strip. The side where the two adjacent top plates (5) are connected is locally thinned to expose the first U-shaped bar (51) inside the top plate (5). The two thinned areas form a post-pouring strip. The opening direction of the first U-shaped bar (51) is facing the inside of the top plate (5). The first U-shaped bars (51) of the two top plates (5) are lapped by a ring bar (52). The third bar (53) is inserted and tied in the area where the ring bar (52) overlaps with the first U-shaped bar (51). The third bar (53) located above the shear wall (1) must avoid the short hole (15) and the second bar (16).

5. The module system according to claim 4, characterized in that, The top plate (5) is filled with multiple weight-reducing blocks (54).

6. The module system according to claim 4, characterized in that, The first module includes two shear walls (1) located below the top plate (5), a first partition wall (2) and a second partition wall (3). The two shear walls (1) are located at the two edges on the left side of the first module respectively. The long walls (12) of the two shear walls (1) are arranged along the long side of the first module. The first partition wall (2) is located between the two long walls (12), and the second partition wall (3) is located on the side directly opposite to the first partition wall (2). The second module includes two shear walls (1) and two second partition walls (3) located below the top plate (5). The two shear walls (1) are located at the two edges on the left side of the second module respectively. The long walls (12) of the two shear walls (1) are arranged on the long side of the second module. At the same time, the two long walls (12) fill the gaps on both sides of the second partition wall (3) in the first module and sandwich the second partition wall (3) in the middle. One second partition wall (3) is located between the two long walls (12), and one second partition wall (3) of the second module is placed close to the second partition wall (3) of the first module. The other second partition wall (3) is located on the opposite side of the two long walls (12). The third module includes two shear walls (1) located below the top plate (5), a first partition wall (2) and a second partition wall (3). The two shear walls (1) are located at the two right edges of the third module respectively. The long walls (12) of the two shear walls (1) are arranged along the long side of the third module. The first partition wall (2) is located between the two long walls (12). The second partition wall (3) is located on the opposite side of the two long walls (12). The second partition wall (3) of the third module is placed close to the other second partition wall (3) of the second module.

7. The module system according to claim 6, characterized in that, Two types of shear walls (1) are set up, including a first shear wall and a second shear wall, which are installed alternately above and below each other; The through hole (13) of the first shear wall is aligned with the through hole (13) of the second shear wall. The short hole (15) of the first shear wall is staggered with the short hole (15) of the second shear wall. The second reinforcing bar (16) of the first shear wall is staggered with the second reinforcing bar (16) of the second shear wall. The short hole (15) of the first shear wall is aligned with the second reinforcing bar (16) of the second shear wall. The short hole (15) of the second shear wall is aligned with the second reinforcing bar (16) of the first shear wall.

8. The module system according to claim 6, characterized in that, After each layer of module units is installed, a mortar strip (4) is set above each shear wall (1). The outline of the mortar strip (4) is around the edge of the shear wall (1). The bottom of the shear wall (1) forms a zigzag cross section due to the long groove (17). The outline of the mortar strip (4) is consistent with the bottom outline of the shear wall (1), so that when the upper layer module units are installed, the bottom surface of each shear wall (1) of the upper layer is connected to the mortar strip (4) on each shear wall (1) of the lower layer. The mortar strip (4) includes a pad inside and mortar covering the outside of the pad. The height of the mortar is higher than the height of the pad. When the upper module unit is installed, the bottom surface of the upper shear wall (1) contacts the pad. The mortar deforms to both sides and hardens into a solid.

9. The module system according to claim 6, characterized in that, The first module, the second module and the third module all include a bottom plate (6) located on the bottom surface. The bottom plate (6) is a thin concrete plate and does not participate in the structural stress. The first partition wall (2) includes two structural columns (21), an upper structural beam (22), a lower structural beam (23), and multiple ALC plates (24). The two structural columns (21) are located at the left and right ends of the first partition wall (2), respectively. The upper structural beam (22) is cast into the top plate (5) by extending upward second U-shaped bars (25), and the lower structural beam (23) is cast into the bottom plate (6) by extending downward second U-shaped bars (25). Multiple ALC plates (24) are arranged in the area enclosed by the two structural columns (21), the upper structural beam (22), and the lower structural beam (23). The first partition wall (2) and the second partition wall (3) have the same structure. The thickness of the two second partition walls (3) after assembly is equal to the thickness of one first partition wall (2).

10. A method for installing the module system according to any one of claims 4-9, characterized in that, Includes the following steps: S1: Hoist the first module, the second module and the third module to the site in no particular order, and grout into the through holes (13) of the shear wall (1) in the first module, the second module and the third module. Stop grouting when the height of the grout in the through holes (13) is such that the first steel bar (14) is inserted halfway. S2: Lap the ring steel bars (52) and insert and tie the third steel bars (53) of the post-cast strip of the top plate (5) in the first module, the second module and the third module, and pour the post-cast strip between the two adjacent top plates (5) of the first module, the second module and the third module in sequence, so that the first module, the second module and the third module are connected to form the lower module unit; S3: hoisting the upper module unit. During hoisting, the second steel bars (16) extending from the shear walls (1) of the first, second and third modules in the lower module unit are inserted into the short holes (15) of the shear walls (1) of the first, second and third modules in the upper module unit. S4: Insert the first reinforcing bar (14) into the through hole (13) of the shear wall (1) of the upper module unit. The first reinforcing bar (14) falls into the through hole (13) of the lower module unit. At this time, the lower half of the first reinforcing bar (14) is located in the through hole (13) of the lower module unit, and the upper half of the first reinforcing bar (14) is located in the through hole (13) of the upper module unit. S5: Grout into the through hole (13) of the upper module unit. The grout level in the through hole (13) of the upper module unit is such that the first reinforcing bar (14) is inserted halfway. S6: Lap the ring steel bars (52) and insert and tie the third steel bars (53) of the post-cast strip of the top plate (5) in the first, second and third modules of the upper module unit, and pour the post-cast strip between the two adjacent top plates (5) of the first, second and third modules of the upper module unit in sequence, so that the first, second and third modules of the upper module unit are connected to form the upper module unit; S7: Repeat S3-S6 to continue installing the next upper-level module unit.

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