Shear wall connecting structure and prefabricated shear wall structure system

Abstract

The utility model provides a shear wall connecting structure and a prefabricated shear wall structural system.The shear wall connecting structure is applied to the technical field of shear wall assembly.The shear wall connecting structure is used for vertical connection of an upper-layer shear wall and a lower-layer shear wall at a floor slab and specifically comprises lower overhanging steel bars anchored to the lower end of the upper-layer shear wall and upper overhanging steel bars anchored to the upper end of the lower-layer shear wall; the lower end of the upper-layer shear wall is a hidden beam area, the bottom elevation of the hidden beam area is a floor slab surface, the lower overhanging steel bars and the upper overhanging steel bars are connected in the hidden beam area in an anchoring mode, horizontal longitudinal bars are arranged in the hidden beam area, and the horizontal longitudinal bars and the lower overhanging steel bars are bound and fixed. Deformation sections are arranged on the upper overhanging steel bars and / or the lower overhanging steel bars and used for avoiding horizontal longitudinal bars when the upper overhanging steel bars and the lower overhanging steel bars are anchored in place, the upper-layer shear wall and the lower-layer shear wall are vertically connected through a hidden beam area on the upper portion of the floor slab, the overall structural rigidity of the connecting position is improved, construction can be facilitated, and the construction quality can be improved.

Description

Technical Field

[0001] This application relates to the field of shear wall construction technology, specifically to a shear wall connection structure and a prefabricated shear wall structural system. Background Technology

[0002] A concealed beam is a structural member hidden within a shear wall for connecting vertical components between upper and lower floors. Integrated construction of the concealed beam with the floor slab reduces formwork erection and pouring processes. After construction, the concealed beam is hidden within the wall, contributing to a more integrated building appearance. In existing technology, an applicant has proposed a ring-reinforced shear wall intermediate support for connecting upper and lower shear walls at the floor slab. Specifically, it includes upper and lower ring-reinforced bars. One end of the upper ring-reinforced bar is embedded within the upper shear wall and fixed by the ring reinforcement, while the other end extends to the outside of the upper shear wall. Similarly, one end of the lower ring-reinforced bar is embedded within the lower shear wall and fixed by the ring reinforcement, while the other end extends to the outside of the lower shear wall. The extended outer ends of the upper and lower ring-reinforced bars interlock to form a ring-shaped area, within which a concealed beam is poured.

[0003] In other words, the upper and lower shear walls are connected by a hidden beam located above the floor slab. Within the hidden beam area, the ring reinforcement bars on each shear wall are aligned and interlocked, forming a closed stirrup system that confines the concrete and improves the shear capacity of the joint area. However, this design presents at least the following problems during construction: During the construction of the hidden beam, the horizontal longitudinal reinforcement bars need to be inserted from the side of the hidden beam area into the closed stirrup system formed by the upper and lower ring reinforcement bars after the upper shear wall is installed. Constructing horizontal reinforcement within the hidden beam area not only complicates the binding process but also makes coordination with other components difficult, thus reducing overall construction efficiency. Utility Model Content

[0004] In view of this, the embodiments of this specification provide a shear wall connection structure and a precast shear wall structure system, which have the advantages of high structural stiffness at the connection and convenient construction.

[0005] The embodiments in this specification provide the following technical solutions:

[0006] Firstly, a shear wall connection structure is provided for the vertical connection of upper and lower shear walls at the floor slab. It includes a lower outward-extending reinforcing bar anchored to the lower end of the upper shear wall and an upper outward-extending reinforcing bar anchored to the upper end of the lower shear wall. The lower end of the upper shear wall is a concealed beam area, the bottom elevation of which is the floor slab surface. The lower and upper outward-extending reinforcing bars are anchored within the concealed beam area. Horizontal longitudinal reinforcement is provided within the concealed beam area, and this horizontal longitudinal reinforcement is tied and fixed to the lower outward-extending reinforcing bar. The upper and / or lower outward-extending reinforcing bars have deformation sections to avoid the horizontal longitudinal reinforcement when the upper and lower outward-extending reinforcing bars are anchored in place.

[0007] To optimize the above plan, the following measures were also taken:

[0008] In one embodiment, the lower outward-extending reinforcing bar is either closed or open, and the upper outward-extending reinforcing bar is either closed or open.

[0009] As one embodiment, stirrups are provided in the concealed beam area, and the stirrups are tied and fixed to the horizontal longitudinal bars.

[0010] In one embodiment, the horizontal longitudinal reinforcement includes upper longitudinal reinforcement and lower longitudinal reinforcement, and the lower outward-extending steel bar also serves as part of the stirrup to restrain the lower longitudinal reinforcement.

[0011] In one embodiment, the horizontal longitudinal reinforcement includes multiple sets of steel bars spaced apart in the horizontal direction, and the deformation section includes a first relief portion formed at the upper end of the upper outward-extending steel bar in a narrowed shape. The upper outward-extending steel bar passes through the first relief portion through the gap between the horizontal longitudinal reinforcements to achieve alignment with the lower outward-extending steel bar in the hidden beam area.

[0012] As one embodiment, it also includes a lower sleeve anchored to the lower end of the upper shear wall and an upper sleeve anchored to the upper end of the lower shear wall. The lower sleeve and the upper sleeve are sleeved together vertically to guide the lower and upper outward reinforcing bars to be anchored in place within the hidden beam area.

[0013] In one embodiment, the upper sleeve and the lower sleeve adopt the same structure, both of which include a sealing steel plate and a pre-embedded steel pipe and an exposed steel pipe welded and fixed on both sides of the sealing steel plate. The pre-embedded steel pipe is embedded inside the shear wall, the exposed steel pipe extends out of the shear wall, and the sealing steel plate is embedded on the surface of the shear wall.

[0014] In one embodiment, the exposed steel pipe is provided with grouting holes for concrete slurry to flow into the interior of the exposed steel pipe.

[0015] In addition, a prefabricated shear wall structure system is provided, including an upper shear wall, a lower shear wall, and a shear wall connection structure for realizing the vertical connection between the upper shear wall and the lower shear wall at the floor slab, wherein the shear wall connection structure is the shear wall connection structure described above.

[0016] In one embodiment, the shear wall includes a wall body and edge members disposed on both sides of the wall body, and the hidden beam area is formed within the range corresponding to the wall body and the edge members.

[0017] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0018] Firstly, the upper and lower shear walls can be vertically connected through the hidden beam area above the floor slab. Within the hidden beam area, the combined force is borne by the upper and lower outward-extending steel bars and horizontal longitudinal bars, which improves the overall stiffness at the connection node and can more efficiently distribute shear force under horizontal loads.

[0019] Furthermore, in this shear wall connection structure, the horizontal longitudinal reinforcement in the hidden beam area can be installed before the shear wall is hoisted into place. Compared with the method of inserting the reinforcement through the hidden beam, this can greatly simplify the construction process and reduce the construction difficulty.

[0020] Furthermore, the connection between the upper and lower sleeves allows for the rapid positioning of the connecting steel bars on the upper and lower shear walls. Once in place, only temporary measures are needed to adjust the verticality and elevation of the shear walls to complete the assembly and positioning of the upper and lower shear walls, reducing the time required for hoisting operations and improving construction efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal structure of the shear wall in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the overall structure of the shear wall in Embodiment 1 of this application, wherein horizontal longitudinal reinforcement is pre-tied in the hidden beam area;

[0024] Figure 3 This is a connection diagram of the precast shear wall structure system in Embodiment 1 of this application;

[0025] Figure 4 yes Figure 3A schematic diagram of the fracture structure at the vertical connection point;

[0026] Figure 5 This is a cross-sectional schematic diagram of the connection structure in Embodiment 1 of this application;

[0027] Figure 6 This is a schematic diagram of the fit between the upper sleeve and the lower sleeve in Embodiment 1 of this application;

[0028] Figure 7 This is a schematic diagram of the upper or lower sleeve in Embodiment 1 of this application;

[0029] Figure 8 This is a schematic diagram of the mold for the precast shear wall in Embodiment 2 of this application.

[0030] Attached Figure

[0031] 1. Shear wall; 1a. Upper shear wall; 1b. Lower shear wall; 11. Edge member; 21. Upper outward reinforcing bar; 22. Lower outward reinforcing bar; 23. Side outward reinforcing bar; 31. Upper sleeve; 32. Lower sleeve; 33. Edge sealing plate; 34. Exposed steel pipe; 341. Grouting hole; 35. Embedded steel pipe; 4. Hidden beam area; 41. Horizontal longitudinal reinforcement; 42. Stirrup; 5. Floor slab; 51. Through-reinforcement hole; 6. Side formwork; 61. Fixing hole; 62. Reserved hole. Detailed Implementation

[0032] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0033] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0035] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0036] This specification presents an embodiment of a shear wall connection structure, which aims to solve the problems of complex construction process and difficult component coordination in the construction of concealed beam connection of prefabricated shear walls in the prior art. It can not only simplify the construction process of concealed beam reinforcement, but also enable the upper shear wall to be quickly positioned when hoisting the upper shear wall, reduce the time required for hoisting operations, and improve construction efficiency.

[0037] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings. Example

[0038] like Figures 1 to 6As shown, the embodiments of this specification first provide a shear wall connection structure for the vertical connection of upper and lower shear walls at floor slab 5. The shear wall 1 can be precast as a whole or a cast-in-place structure. The cast-in-place structure has better integrity and can avoid problems such as reduced structural strength and poor durability caused by the connection between new and old concrete. However, it requires formwork erection and reinforcement binding on the construction site, and requires waiting for curing after pouring. Using precast shear walls can save a lot of time in formwork erection and curing, and therefore becomes the preferred method in this embodiment. The shear wall connection structure includes a lower outward-extending steel bar 22 anchored to the lower end of the upper shear wall 1a and an upper outward-extending steel bar 21 anchored to the upper end of the lower shear wall 1b. The lower end of the upper shear wall 1a is a hidden beam area 4, that is, the top elevation of the hidden beam area 4 is the lower end face of the shear wall, and the bottom elevation of the hidden beam area 4 is the floor surface of the floor slab 5. The lower outward-extending steel bar 22 and the upper outward-extending steel bar 21 are anchored and connected in the hidden beam area 4. A horizontal longitudinal bar 41 is provided in the hidden beam area 4. The horizontal longitudinal bar 41 is tied and fixed to the lower outward-extending steel bar 22. The upper outward-extending steel bar 22 and / or the lower outward-extending steel bar 21 have deformation sections to avoid the horizontal longitudinal bar 41 when the upper and lower outward-extending steel bars are anchored in the hidden beam area 4.

[0039] like Figure 5 As shown, the upper outward-extending steel bar 21 at the upper end of the lower shear wall 1b and the lower outward-extending steel bar 22 at the lower end of the upper shear wall 1a are anchored in the hidden beam area. After the hidden beam area is cast, compared with the connection through cast-in-place strip, the overall stiffness at the connection node is improved by the combined force of the upper and lower outward-extending steel bars and the horizontal longitudinal bars. Furthermore, it can more efficiently distribute shear force under horizontal loads, ensuring the overall coordinated operation of the structure under earthquake or wind loads. In the shear wall connection structure of this embodiment, since the side of the upper outward reinforcing bar 21 narrows inward from bottom to top to form a deformation section that avoids the horizontal longitudinal reinforcement 41 when anchoring in the hidden beam area 4, the horizontal longitudinal reinforcement of the hidden beam area can be installed before the shear wall is hoisted into place. The upper outward reinforcing bar 21 of the lower shear wall 1b can be inserted into the space defined by the horizontal longitudinal reinforcement of the hidden beam area in a "plug-in" manner, and then the upper outward reinforcing bar 21, the lower outward reinforcing bar 22 and the horizontal longitudinal reinforcement are connected. This eliminates the need to insert the horizontal reinforcement from the side of the hidden beam area and install it after the upper outward reinforcing bar 21 of the lower shear wall 1b and the lower outward reinforcing bar 22 of the upper shear wall 1a are in place. This greatly simplifies the construction process and increases the convenience of construction.

[0040] In this embodiment, the shear wall connection structure also includes a lower sleeve 32 anchored to the lower end of the upper shear wall 1a and an upper sleeve 31 anchored to the upper end of the lower shear wall 1b. The lower sleeve 32 and the upper sleeve 31 are sleeved together vertically to guide the lower outward reinforcing bars 22 and the upper outward reinforcing bars 21 to be anchored in place in the hidden beam area.

[0041] like Figure 3 , Figure 4 and Figure 6 As shown, when the shear wall is in place, the lower sleeve 32 of the upper shear wall 1a and the upper sleeve 31 of the lower shear wall 1b are sleeved together vertically. The lower outward reinforcing bars 22 at the lower end of the upper shear wall 1a and the upper outward reinforcing bars 21 at the upper end of the lower shear wall 1b are paired up vertically and overlap each other, but are staggered and adjacent to each other horizontally. Thus, since the relative positions of the lower sleeve 32 and the lower outward reinforcing bar 22 are fixed at the lower end of the upper shear wall 1a, and the relative positions of the upper sleeve 31 and the upper outward reinforcing bar 21 are also fixed at the upper end of the lower shear wall 1b, during the hoisting process of the upper shear wall 1a, it is only necessary to operate the lower sleeve 32 of the upper shear wall 1a to engage with the upper sleeve 31 at the upper end of the lower shear wall 1b. The lower outward reinforcing bar 22 of the upper shear wall 1a and the upper outward reinforcing bar 21 of the lower shear wall 1b will also be in place, that is, they are paired up vertically and overlap each other, but they are staggered and adjacent to each other horizontally, so as to facilitate subsequent binding and anchoring.

[0042] like Figure 6 and Figure 7 As shown, in this embodiment, the upper sleeve 31 and the lower sleeve 32 adopt the same structure, both including an edge-sealing steel plate 33 and embedded steel pipes 35 and exposed steel pipes 34 welded and fixed to both sides of the edge-sealing steel plate 33. The embedded steel pipes 35 are embedded inside the upper shear wall 1a, and the exposed steel pipes 34 extend out of the shear wall 1. The edge-sealing steel plate 33 is embedded in the surface of the shear wall 1. In one embodiment, the edge-sealing steel plate 33 separates the embedded steel pipes 35 and the exposed steel pipes 34, so that the embedded steel pipes 35 and the exposed steel pipes 34 are not connected to each other. The setting of the edge-sealing steel plate 33 can increase the anchorage area between the sleeve and the shear wall, thereby increasing the structural connection strength. Moreover, the edge-sealing steel plate 33 can also be used as a mold sealing part during the fabrication of precast shear walls, thereby reducing the cost of shear wall fabrication and improving the efficiency of mold assembly. Preferably, the embedded steel pipes 35 and exposed steel pipes 34 of the same sleeve are arranged coaxially. Preferably, the inner diameter of the lower sleeve 32 is larger than the outer diameter of the upper sleeve 31. The fit gap between the two allows for a certain construction deviation, which facilitates the smooth docking of the lower sleeve 32 and the upper sleeve 31 on site, and also facilitates the filling of the sleeve cavity with grout during subsequent grouting.

[0043] The lower outward-extending reinforcing bar 22 is preferably either closed or open. Figure 1As shown, the lower outward-extending reinforcing bar 22 is closed, specifically, the lower outward-extending reinforcing bar 22 is U-shaped with an opening facing one side of the wall in the vertical direction. The upper outward-extending reinforcing bar 21 is either closed or open. Preferably, the upper outward-extending reinforcing bar 21 is open, specifically, the upper outward-extending reinforcing bar 21 includes two opposing L-shaped extension segments in the vertical direction. In this way, when bearing vertical loads, the open upper outward-extending reinforcing bar 21 can play a role in dispersing nodal stress in the poured concrete, avoiding load concentration in one direction, while the closed lower outward-extending reinforcing bar 22 can provide good shear resistance and can also serve as part of the stirrups. As disclosed herein, the shear wall 1 further has side outward-extending reinforcing bars 23 on its side. The side outward-extending reinforcing bars 23 can be closed, open, or straight. In this embodiment, the side outward-extending reinforcing bars 23 are open.

[0044] like Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, stirrups 42 are provided in the concealed beam area 4. The stirrups 42 are tied and fixed to the horizontal longitudinal bars 41. The horizontal longitudinal bars 41 include upper longitudinal bars and lower longitudinal bars. The upper outward-extending bars 21 also serve as part of the stirrups 42 to restrain the lower longitudinal bars. As shown, multiple horizontal longitudinal bars in the concealed beam area are arranged opposite and parallel to each other. In this embodiment, the horizontal longitudinal bars 41 include multiple sets of bars spaced apart in the horizontal direction. The deformation section includes a first narrowing relief portion formed at the upper end of the upper outward-extending bars 21. The upper outward-extending bars 21 pass through the gaps between the horizontal longitudinal bars through the first relief portion to achieve alignment with the lower outward-extending bars in the concealed beam area. As a variation, the deformation section may also include a second relief portion formed at the lower end of the lower outward-extending bars 22 in an extended arrangement. Since the setting of the deformation section can change the timing of the installation of the horizontal longitudinal reinforcement in the hidden beam area 4, it is not necessary to wait until the shear wall 1 is installed before inserting the horizontal longitudinal reinforcement from the side of the hidden beam area 4. Therefore, the construction process can be simplified and the construction efficiency can be improved.

[0045] In this embodiment, a beam-slab junction area is defined between the upper shear wall 1a and the lower shear wall 1b. The hidden beam area 4 is located within the beam-slab junction area. The exposed steel pipe 34 is provided with a grouting hole 341, which allows concrete slurry to flow into the interior of the exposed steel pipe 34 during concrete pouring in the beam-slab junction area. Furthermore, the grouting hole 341 can also be used in conjunction with the fabrication mold described below to limit and constrain the corresponding sleeves tied to the wall reinforcement mesh during the fabrication of the precast shear wall. For example, it can cooperate with the limiting reinforcement bars on the fabrication mold to achieve limiting and constraining of the corresponding sleeves, thereby making the shear wall pouring process more stable.

[0046] This embodiment also provides a prefabricated shear wall 1 structural system, including an upper shear wall 1a, a lower shear wall 1b, and a shear wall connection structure that vertically connects the upper shear wall 1a and the lower shear wall 1b. The shear wall connection structure is the shear wall connection structure described above. As an extension, the shear wall 1 includes a wall body and edge members 11 disposed on both sides of the wall body, such as... Figure 4 As shown, the concealed beam area 4 is formed within the area corresponding to the wall and the edge member 11, wherein the concealed beam area 4 within the edge member area is the concealed beam anchorage area and does not require stirrups. As an extension, the floor slab 5 has through holes 51 for the upper outward reinforcing bars 21 on the lower shear wall 1b to extend upward from the bottom surface of the floor slab 5 into the concealed beam area 4.

[0047] In this embodiment, as Figure 1 and Figure 5 As shown, the precast shear wall 1 is composed of precast concrete and an internal steel reinforcement mesh. The wall reinforcement includes horizontal steel bars, vertical steel bars, and tie bars. Both the horizontal and vertical steel bars are arranged in a double-layer mesh. The tie bars use hooks to connect the nodes of the double-layer steel reinforcement mesh into a whole. The side outward-extending steel bars 23 include left and right outward-extending steel bars, which are extensions of the horizontal steel bars. The upper outward-extending steel bars 21 and the lower outward-extending steel bars 22 are extensions of the vertical steel bars.

[0048] To more clearly and completely demonstrate the technical solution in this embodiment, the assembly and construction process of the precast shear wall 1 under one implementation method is given below:

[0049] S1, lower floor slab 5 concrete pouring, such as Figure 3 and Figure 4 As shown, the upper outward reinforcing bars 21 and upper sleeves 31 of the lower precast shear wall 1b are exposed on the floor slab surface. If the lower layer is a fully cast-in-place structure, then connecting reinforcing bars and upper sleeves 31 need to be pre-embedded in the lower cast-in-place structure for connection and positioning with the upper precast shear wall 1a.

[0050] S2. Arrange the stirrups and horizontal longitudinal bars in the concealed beam area, and tie and fix the stirrups and horizontal longitudinal bars in the concealed beam area, such as... Figure 2 As shown;

[0051] S3. Hoist the upper shear wall 1a and attach the lower sleeve 32 of the upper shear wall 1a to the exposed upper sleeve 31 on the floor slab 5 to complete the positioning of the precast shear wall. Since the relative positions of the protruding steel bars of the upper and lower precast shear walls and the corresponding sleeves are fixed, all the protruding steel bars are in place once the sleeves are in place.

[0052] S4. Adjust the verticality and elevation of the upper shear wall through temporary measures;

[0053] S5. Arrange the stirrups and longitudinal bars for the edge members.

[0054] S6. Erect scaffolding and formwork, and pour concrete in the areas where the horizontal post-pouring strip and edge members are located. Except for the roof layer, expose the upper outward reinforcing bars 21 and upper sleeves 31 on the surface of the floor slab 5 for connection with the upper shear wall 1a. Example

[0055] like Figure 8 As shown, this embodiment, based on Embodiment 1, further proposes a manufacturing mold for producing the aforementioned precast shear wall 1 with sleeve. The manufacturing mold includes multiple assembleable side molds 6 and mold positioning components for positioning the side molds 6. Each assembleable side mold 6 is provided with a fixing hole 61. A fixing component, such as a threaded fastener, passing through the fixing hole 61, is used to fix the side mold 6 onto the mold positioning component. The mold positioning component is fixed on the molding platform. The assembleable side mold 6 is also provided with protruding ribs. The side of the shear wall 1... The upper outward-extending reinforcing bars 23, 21, and 22 protrude from the mold through the reinforcing bar protrusion. The assembleable side molds 6 are provided with pre-drilled holes 62. The specific number of assembleable side molds 6 with pre-drilled holes 62 is related to the number of sleeves used on the shear wall. The exposed steel pipe 34 of the corresponding sleeve passes through the pre-drilled hole 62. The sealing steel plate 33 abuts against the corresponding side mold. Anchoring reinforcing bars are preferably provided on the embedded steel pipe for lapping or welding with the reinforcing bars of the precast shear wall 1, enhancing the anchoring strength. As disclosed above, the sealing steel plate 33 not only increases the anchoring area between the sleeve and the shear wall 1, thereby increasing the connection strength between the sleeve and the shear wall 1, but also serves as a sealing component for the mold, sealing the corresponding pre-drilled holes 6. This eliminates the need for sealing components such as foam plugs, reducing the cost of precast shear wall production and saving time in shear wall molding.

[0056] In summary, in the above embodiments, the upper and lower shear walls can be vertically connected through the hidden beam area 4 above the floor slab 5. The effective anchorage of the reinforcing bars and the integral pouring of concrete form a continuous force transmission path, improving the overall structural stiffness at the vertical connection. Furthermore, in this shear wall connection structure, the horizontal longitudinal reinforcement of the hidden beam area 4 can be installed before the shear wall 1 is hoisted into place. Compared to the method of installing the reinforcing bars through the hidden beam after the shear wall 1 is in place, this greatly simplifies the construction process and reduces construction difficulty.

[0057] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A shear wall connection structure for vertical connection of upper and lower shear walls at a floor, characterized by, The lower external reinforcement is anchored at the lower end of the upper shear wall, and the upper external reinforcement is anchored at the upper end of the lower shear wall, the lower end of the upper shear wall is a concealed beam area, the bottom of the concealed beam area is the floor surface, the lower external reinforcement is connected with the upper external reinforcement in the concealed beam area, horizontal longitudinal reinforcement is arranged in the concealed beam area, the horizontal longitudinal reinforcement is fixed with the lower external reinforcement by binding, the upper external reinforcement and / or the lower external reinforcement has a deformation section for avoiding the horizontal longitudinal reinforcement when the upper and lower external reinforcement is anchored in place.

2. The shear wall connection structure according to claim 1, wherein, The lower external reinforcement is in a closed or open shape, and the upper external reinforcement is in a closed or open shape.

3. The shear wall connection structure according to claim 1, wherein Stirrups are arranged in the concealed beam area, and the stirrups are fixed with the horizontal longitudinal reinforcement by binding.

4. The shear wall connection structure according to claim 1, wherein The horizontal longitudinal reinforcement includes upper longitudinal reinforcement and lower longitudinal reinforcement, and the lower external reinforcement serves as part of the stirrup to bind the lower longitudinal reinforcement.

5. The shear wall connection structure according to claim 1, wherein, The horizontal longitudinal reinforcement includes multiple groups of steel bars spaced apart in the horizontal direction, and the deformation section includes a first avoiding part formed at the upper end of the upper external reinforcement in a narrowing shape, and the upper external reinforcement passes through the space between the horizontal longitudinal reinforcement through the first avoiding part to be aligned with the lower external reinforcement in the concealed beam area.

6. The shear wall connection structure according to claim 1, wherein, A lower sleeve anchored at the lower end of the upper shear wall and an upper sleeve anchored at the upper end of the lower shear wall are further included, the lower sleeve and the upper sleeve are vertically sleeved to guide the lower external reinforcement and the upper external reinforcement to be anchored in place in the concealed beam area.

7. The shear wall connection structure according to claim 6, wherein, The upper sleeve and the lower sleeve have the same structure, both of which include an edge steel plate, and embedded steel pipes and exposed steel pipes welded and fixed on both sides of the edge steel plate, the embedded steel pipes are embedded in the interior of the shear wall, the exposed steel pipes extend out of the wall body of the shear wall, and the edge steel plate is embedded in the surface of the shear wall.

8. The shear wall connection structure according to claim 7, wherein, The exposed steel pipe is provided with a grouting hole for the concrete slurry to flow into the interior of the exposed steel pipe.

9. A precast shear wall structural system, characterized by, The shear wall includes a wall body and edge members arranged on both sides of the wall body, and the concealed beam area is formed in the corresponding range of the wall body and the edge members.

10. The precast shear wall structural system according to claim 9, wherein, The shear wall includes a wall body and edge members arranged on both sides of the wall body, and the concealed beam area is formed in the corresponding range of the wall body and the edge members.

Images