Prefabricated shear wall structure and construction method thereof

Abstract

The application provides an assembled shear wall structure and a construction method thereof, and relates to the technical field of buildings. After the installation and fixation of a lower prefabricated wall are completed, a prefabricated beam is hoisted, a beam end connecting assembly at the end of the prefabricated beam is connected with a lower wall top connecting assembly arranged at the top of the lower prefabricated wall, after the connection is completed, the prefabricated floor is hoisted, the prefabricated floor is placed on the prefabricated beam or the top of the lower prefabricated wall, then an upper prefabricated wall is hoisted, an upper wall bottom connecting assembly on the upper prefabricated wall is connected with the lower wall top connecting assembly, thereby the connection of the prefabricated beam, the upper prefabricated wall and the lower prefabricated wall is completed, the installation process does not need to set a temporary support and wait for the strength formed by post-poured concrete, the continuous and rapid assembly construction can be realized, the construction period is effectively shortened, and the technical problem that the connection between the prefabricated concrete floor and the shear wall, the beam and the shear wall in the prior art needs to use a grouting sleeve connection construction period which is long and needs to use an additional temporary support structure is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building, in particular to a fabricated shear wall structure and a construction method thereof. BACKGROUND

[0002] With the rapid development of building industrialization, prefabricated concrete structures are increasingly widely used in building engineering. Prefabricated concrete structures have the advantages of fast construction speed, controllable quality, and small environmental impact, and have become an important development direction in the field of modern construction. In prefabricated concrete structures, shear walls, as the main lateral force resisting members, have an important influence on the safety and construction efficiency of the entire structure in terms of the connection mode with horizontal members such as floors and beams.

[0003] At present, the connection between traditional prefabricated concrete floors and shear walls, and between beams and shear walls mainly adopts the connection mode of grouting sleeves and post-poured concrete. The specific method is as follows: sleeves are embedded at the ends of prefabricated shear walls and beams, corresponding steel bars are inserted into the sleeves during on-site installation, then high-strength grouting material is poured to realize steel bar connection, and post-poured concrete is poured in the connection area. This connection mode has been widely used in engineering practice and can theoretically achieve the integrity requirements of the structure.

[0004] However, in actual engineering applications, the post-poured concrete needs a certain period of time to reach the design strength, during which the connection part cannot form a rigid connection, and the prefabricated components cannot stand alone, so temporary support systems must be set up to ensure construction safety. This not only increases the construction process and prolongs the construction period, but also results in additional support material costs and labor costs. SUMMARY

[0005] The purpose of the present application is to provide a fabricated shear wall structure and a construction method thereof, in order to alleviate the technical problems of long construction period and the need for additional temporary support structure in the wet connection construction of prefabricated concrete floors and shear walls, and beams and shear walls using grouting sleeves.

[0006] In a first aspect, the present application provides a fabricated shear wall structure, comprising: an upper prefabricated wall, a lower prefabricated wall, and a prefabricated beam.

[0007] The top of the lower prefabricated wall is provided with a lower wall top connecting assembly, and the horizontal ends of the lower wall top connecting assembly protrude from the side edges of the lower prefabricated wall.

[0008] The end of the prefabricated beam is provided with a beam end connecting assembly, which is used to connect with the lower wall top connecting assembly.

[0009] The bottom of the upper prefabricated wall is provided with an upper wall bottom connecting assembly, which is used to connect with the lower wall top connecting assembly.

[0010] In an optional embodiment,

[0011] The top connecting assembly of the lower wall comprises a lower wall protruding connecting member, a lower wall embedded connecting member and a lower wall vertical rib connecting plate;

[0012] The lower wall protruding connecting member is arranged on the side of the lower prefabricated wall and protrudes from the side of the lower prefabricated wall, and the lower wall protruding connecting member is used to connect the beam end connecting assembly;

[0013] The lower wall embedded connecting member is arranged between the two lower wall protruding connecting members, and the lower wall embedded connecting member is used to connect the upper prefabricated wall;

[0014] The lower wall vertical rib connecting plate is arranged in multiple, and the lower wall vertical rib connecting plate is used to connect the lower wall embedded connecting member and the lower wall protruding connecting member, or is used to connect two adjacent lower wall embedded connecting members.

[0015] In an optional embodiment,

[0016] The lower wall protruding connecting member comprises a lower wall end protruding piece, an outer column limb and an inner column limb;

[0017] The lower wall end protruding piece is partially arranged to protrude from the lower prefabricated wall, and the part of the lower wall end protruding piece arranged to protrude from the lower prefabricated wall is provided with a first bolt hole, so that the lower wall end protruding piece can be connected with the beam end connecting assembly through a bolt;

[0018] The outer column limb is partially arranged to protrude from the lower prefabricated wall, and the lower wall end protruding piece is connected with the outer column limb by extending into the end of the lower prefabricated wall;

[0019] The inner column limb is partially arranged to protrude from the lower prefabricated wall, the inner column limb is connected with the outer column limb, and the side of the inner column limb away from the outer column limb is connected with the lower wall embedded connecting member through the lower wall vertical rib connecting plate;

[0020] The side of the outer column limb close to the inner column limb is provided with an upper horizontal rib plate and a lower horizontal rib plate arranged in an up-down manner.

[0021] In an optional embodiment,

[0022] The lower wall protruding connecting member further comprises an upper connecting plate, a middle connecting plate and a lower connecting plate;

[0023] The upper connecting plate is horizontally arranged, one end of the upper connecting plate extends into the slot of the outer column limb to connect with the outer column limb, and the other end of the upper connecting plate extends into the slot of the inner column limb to connect with the inner column limb;

[0024] The middle connecting plate is arranged below the upper connecting plate, the middle connecting plate is vertically arranged, and two ends of the middle connecting plate are connected with the outer column limb and the inner column limb respectively;

[0025] The lower connecting plate is arranged below the middle connecting plate, the lower connecting plate is vertically arranged, and two ends of the lower connecting plate are connected with the outer column limb and the inner column limb respectively.

[0026] In an optional embodiment,

[0027] The lower wall end extension member comprises an extension web, an extension upper flange and an extension lower flange;

[0028] The top of the extension web is connected with the extension upper flange, the bottom of the extension web is connected with the extension lower flange, and the extension web has a plurality of first bolt holes.

[0029] In an optional embodiment,

[0030] The lower wall end extension member comprises an upper extension web, a lower extension web, an extension upper flange and an extension lower flange;

[0031] The upper extension web is arranged above the lower extension web, the top of the upper extension web is connected with the extension upper flange, and the bottom of the lower extension web is connected with the extension lower flange;

[0032] The upper extension web and the lower extension web both have first bolt holes.

[0033] In an optional embodiment,

[0034] The beam end connecting assembly comprises a beam end extension web, a beam upper flange and a beam lower flange;

[0035] The top of the beam end extension web is connected with the beam upper flange, the bottom of the beam end extension web is connected with the beam lower flange, and the beam end extension web and the beam lower flange are both partially embedded in the prefabricated beam;

[0036] The beam end extension web provided with second bolt holes protrudes from the part of the prefabricated beam, and the second bolt holes are used for matched connection with the first bolt holes;

[0037] The beam upper flange is used for welded connection with the extension upper flange;

[0038] The beam lower flange is used for welding connection with the overhanging lower flange.

[0039] In an optional embodiment,

[0040] The beam end connection assembly comprises a beam end upper overhanging web, a beam end lower overhanging web, a beam upper flange and a beam lower flange;

[0041] The beam end upper overhanging web is arranged above the beam end lower overhanging web, the top of the beam end upper overhanging web is connected with the beam upper flange, the bottom of the beam end lower overhanging web is connected with the beam lower flange, and the beam end upper overhanging web, the beam end lower overhanging web and the beam lower flange are all partially embedded in the prefabricated beam;

[0042] The beam end upper overhanging web and the beam end lower overhanging web are both provided with second bolt holes for matched connection with the first bolt holes;

[0043] The beam upper flange is used for welding connection with the overhanging upper flange;

[0044] The beam lower flange is used for welding connection with the overhanging lower flange.

[0045] In an optional embodiment,

[0046] The upper wall bottom connection assembly comprises an upper wall embedded connection member and an edge foot plate;

[0047] A plurality of the upper wall embedded connection members are sequentially and spacedly arranged along the length direction of the bottom of the upper prefabricated wall, and the plurality of the upper wall embedded connection members are used for one-to-one corresponding connection with the outer column limb, the inner column limb and the plurality of the lower wall embedded connection members;

[0048] The edge foot plate is arranged protruding from the bottom of the upper wall embedded connection member, so that after the edge foot plate abuts against the overhanging upper flange, the upper wall embedded connection member has a welding gap between the outer column limb, the inner column limb and the plurality of the lower wall embedded connection members.

[0049] In a second aspect, the application provides a construction method based on the fabricated shear wall structure, comprising the following steps:

[0050] After the lower prefabricated wall is fixed, the prefabricated beam is hoisted, the beam end connection assembly is aligned with the lower wall top connection assembly, and then the beam end connection assembly is connected by bolt fastening and then by welding;

[0051] The prefabricated floor slab is hoisted and placed on the top of the beam or wall;

[0052] Hoist the prefabricated wall, the prefabricated wall falls in line with the lower prefabricated wall, and after the edge footplate falls to the outer upper flange, the upper wall embedded connecting component is connected with the lower wall embedded connecting component;

[0053] The gluten on the prefabricated beam is bound, and the gluten on the prefabricated beam is connected with the beam flange.

[0054] The prefabricated shear wall structure and the construction method thereof have the following beneficial effects:

[0055] After the lower prefabricated wall is installed and fixed, the prefabricated beam is hoisted, the beam end connecting assembly at the end of the prefabricated beam is connected with the lower wall top connecting assembly arranged at the top of the lower prefabricated wall, and after the connection is completed, the prefabricated floor is hoisted and placed on the prefabricated beam or the top of the lower prefabricated wall. Then, the upper prefabricated wall is hoisted, the upper wall bottom connecting assembly on the upper prefabricated wall is connected with the lower wall top connecting assembly, thereby completing the connection of the prefabricated beam, the upper prefabricated wall and the lower prefabricated wall. The installation process does not need to set up temporary support and wait for the strength of the post-poured concrete to form, can realize continuous and rapid assembly construction, effectively shorten the construction period, and solve the technical problems of long construction period and additional use of temporary support structure in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0057] Figure 1 The overall structure schematic diagram of the prefabricated shear wall structure provided by the embodiment of the present application in the first embodiment is shown in the figure.

[0058] Figure 2 The overall structure explosion diagram of the prefabricated shear wall structure provided by the embodiment of the present application in the first embodiment is shown in the figure.

[0059] Figure 3 The structure schematic diagram of the lower prefabricated wall in the prefabricated shear wall structure provided by the embodiment of the present application in the first embodiment is shown in the figure.

[0060] Figure 4 The structure schematic diagram of the lower wall top connecting assembly in the prefabricated shear wall structure provided by the embodiment of the present application in the first embodiment is shown in the figure.

[0061] Figure 5The structural schematic view of the beam end connecting assembly in the fabricated shear wall structure according to the embodiment of the present application in the first implementation;

[0062] Figure 6 The structural schematic view of the upper wall bottom connecting assembly in the fabricated shear wall structure according to the embodiment of the present application in the first implementation;

[0063] Figure 7 The overall structural schematic view of the fabricated shear wall structure according to the embodiment of the present application in the second implementation;

[0064] Figure 8 The overall structural exploded view of the fabricated shear wall structure according to the embodiment of the present application in the second implementation;

[0065] Figure 9 The structural schematic view of the lower prefabricated wall in the fabricated shear wall structure according to the embodiment of the present application in the second implementation;

[0066] Figure 10 The structural schematic view of the lower wall top connecting assembly in the fabricated shear wall structure according to the embodiment of the present application in the second implementation;

[0067] Figure 11 The structural schematic view of the beam end connecting assembly in the fabricated shear wall structure according to the embodiment of the present application in the second implementation.

[0068] Icon: 10 - upper prefabricated wall; 20 - lower prefabricated wall; 30 - prefabricated beam; 40 - prefabricated floor slab; 100 - upper wall bottom connecting assembly; 110 - upper wall embedded connecting member; 120 - edge foot plate; 200 - lower wall top connecting assembly; 210 - lower wall overhanging connecting member; 220 - lower wall embedded connecting member; 221 - lower wall end overhanging piece; 2211 - overhanging web plate; 2212 - overhanging upper flange; 2213 - overhanging lower flange; 2214 - upper overhanging web plate; 2215 - lower overhanging web plate; 222 - outer column limb; 223 - inner column limb; 224 - first bolt hole; 225 - upper horizontal rib plate; 226 - lower horizontal rib plate; 227 - upper connecting plate; 228 - middle connecting plate; 229 - lower connecting plate; 230 - lower wall vertical rib connecting plate; 300 - beam end connecting assembly; 310 - beam end overhanging web plate; 320 - beam upper flange; 330 - beam lower flange; 340 - second bolt hole; 350 - beam end upper overhanging web plate; 360 - beam end lower overhanging web plate; 370 - stud. DETAILED DESCRIPTION

[0069] The technical solutions of the present application will be described clearly and completely in the following description of the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0070] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0071] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0072] The specific embodiments of the present application will be described in detail below in conjunction with the drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0073] As shown in Figures 1 to 11 The assembled shear wall structure provided by the present embodiment includes an upper prefabricated wall 10, a lower prefabricated wall 20, and a prefabricated beam 30. A lower wall top connecting assembly 200 is arranged at the top of the lower prefabricated wall 20, and the lower wall top connecting assembly 200 protrudes outward from the side edges of the lower prefabricated wall 20 at both ends in the horizontal direction, forming an overhanging structure for realizing the connection with adjacent components.

[0074] The end of the prefabricated beam 30 is provided with a beam end connecting assembly 300, which can be assembled and connected with the lower wall top connecting assembly 200; the bottom of the upper prefabricated wall 10 is provided with an upper wall bottom connecting assembly 100, which is configured to be connected with the lower wall top connecting assembly 200 at the same position, thereby realizing the instant vertical force transmission and overall cooperative working performance between the upper and lower wall bodies, so that the prefabricated wall body does not need to be provided with additional temporary support.

[0075] During construction, after the precast wall 20 is installed and fixed, the precast beam 30 is hoisted first. At this time, the beam end connecting component 300 at the end of the precast beam 30 is aligned and connected with the lower wall top connecting component 200 at the top of the lower precast wall 20. The extended web plates 2211, or upper extended web plates 2214, or lower extended web plates 2215 of both are connected to the beam end extended web plates 310, or upper extended web plates 350, or lower extended web plates 360 of the beam end by high-strength bolts. The extended upper flange 2212 and extended lower flange 2213 are connected to the beam upper flange 320 and beam lower flange 330 by welding to ensure that the connection nodes have sufficient strength and rigidity, so that the precast beam does not require additional temporary support. After the connection is completed, the precast floor slab 40 can be hoisted directly and placed on top of the precast beam 30 or the lower precast wall 20. Next, the upper precast wall 10 is hoisted, aligning its bottom connecting component 100 with the already installed top connecting component 200 of the lower wall before lowering. Positioning is complete when the edge foot plate 120 on the upper precast wall 10 accurately abuts against the extended upper flange 2212. Then, the connection work between the upper wall embedded connecting component 110 and the lower wall embedded connecting component 220 is carried out, achieving a reliable connection between the upper and lower walls. Finally, reinforcing bars are tied above the precast beam 30 and welded to the upper flange 320 of the beam to form a whole, before proceeding to the subsequent concrete pouring process. The entire construction process does not rely on temporary support structures, significantly improving construction efficiency, shortening the construction period, and effectively solving the problems of complex construction and long cycle in traditional grouting sleeve connection methods.

[0076] The lower wall top connection assembly 200 includes a lower wall outward connecting member 210, a lower wall embedded connecting member 220, and a lower wall vertical reinforcement connecting plate 230. The lower wall vertical reinforcement connecting plate 230 is welded and fixed to the vertical reinforcing bars inside the lower precast wall 20 during the factory prefabrication stage to ensure structural continuity. Lower wall outward connecting members 210 are respectively provided on both sides of the top of the lower precast wall 20, extending laterally beyond the wall edge for connection with the connecting assembly at the end of the precast beam 30. A lower wall embedded connecting member 220 is provided between the two lower wall outward connecting members 210 for on-site connection with the corresponding component at the bottom of the upper precast wall 10. One end of the lower wall vertical reinforcement connecting plate 230 is connected to the lower wall embedded connecting member 220, and the other end extends to and connects with the lower wall extended connecting member 210, forming a complete vertical reinforcement force transmission path. In addition, since multiple lower wall embedded connecting members 220 can be set according to the actual situation, any two adjacent lower wall embedded connecting members 220 can be connected through the lower wall vertical reinforcement connecting plate 230.

[0077] Further, the lower wall extension connecting member 210 comprises a lower wall end extension 221, an outer column limb 222 and an inner column limb 223. The lower wall end extension 221 partially extends out of the end face of the lower prefabricated wall 20, and the exposed section of the lower wall end extension 221 is provided with a first bolt hole 224, facilitating quick connection with the beam end connecting assembly 300 through high-strength bolts. The outer column limb 222 partially protrudes from the lower wall body, and the lower wall end extension 221 is embedded inwardly and connected with the outer column limb 222; the inner column limb 223 is also outwardly protrudingly arranged, parallel to the outer column limb 222, and connected therewith through a connecting plate. The side of the inner column limb 223 away from the outer column limb 222 is connected with the lower wall embedded connecting member 220 through a lower wall vertical rib connecting plate 230, so as to form a force transmission path of the wall vertical steel bars.

[0078] In addition, the lower wall extension connecting member 210 further comprises an upper connecting plate 227, a middle connecting plate 228 and a lower connecting plate 229. The outer column limb 222 and the inner column limb 223 are both configured in the form of I-shaped steel, and the notches thereof are oppositely arranged to form a closed connecting space. The upper connecting plate 227 is arranged in a horizontal state, and both ends thereof are respectively inserted into the web notch of the outer column limb 222 and the inner column limb 223, and are firmly connected through corner welds or bevel full penetration welds, constituting part of the overall force system, in addition, the outer column limb 222 and the inner column limb 223 can also be configured in the form of box section, channel section and other steel structures, and both ends of the upper connecting plate 227 can be directly welded with the outer column limb 222 and the inner column limb 223.

[0079] The middle connecting plate 228 is vertically arranged below the upper connecting plate 227, and both ends thereof are welded between the two column limbs. The lower connecting plate 229 is arranged below the middle connecting plate 228, and is also vertically arranged, and both ends thereof are also welded and connected with the outer column limb 222 and the inner column limb 223, so that the three connecting plates connect the inner and outer column limbs into a lattice truss node, so that the node has extremely strong bearing capacity and stiffness.

[0080] The lower horizontal rib plate 226 is arranged at the level of the outer lower flange 2213, and the inward extension length thereof needs to meet the effective transmission of the lower flange force; the upper horizontal rib plate 225 is arranged at the same level as the lower wall vertical rib connecting plate 230 or arranged at the lower eave level of the upper outer web plate 2214, and the inward extension length thereof can simultaneously connect the middle connecting plate 228 and the outer column limb 222, thereby improving the integrity of the joint and the uniformity of stress distribution. The outer column limb 222 and the inner column limb 223 adopt the same specifications of I-shaped steel, and the notches are oppositely arranged, and can also be arranged in a box shape, a groove shape or the like; the upper connecting plate 227 is a horizontally arranged I-shaped cross-section component, and can also be a rectangular component, and the installation level thereof is higher than that of the outer upper flange 2212, so as to reserve sufficient operation space, thereby facilitating the concrete pouring operation of the edge area of the prefabricated floor 40, and avoiding the pouring non-densification due to the limited space.

[0081] The upper wall bottom connecting assembly 100 mainly comprises a plurality of upper wall embedded connecting components 110 arranged along the bottom long side direction of the upper prefabricated wall 10, which are pre-embedded in the upper prefabricated wall 10 during factory production, and designed to be welded with the outer column limb 222, the inner column limb 223 and the lower wall embedded connecting component 220 one by one at the site. The upper wall embedded connecting component 110 located at the outermost side is also provided with an edge foot plate 120, which protrudes downward from the welding component body. When the lower prefabricated wall 20 is installed in position with the upper prefabricated wall 10, the edge foot plate 120 first falls on the outer upper flange 2212, plays a guiding and limiting role, and at the same time ensures that there is enough operation gap between the upper wall embedded connecting component 110 and each to-be-welded component, so as to facilitate the welding gun to enter and complete the high-quality welding operation.

[0082] All the above connecting assemblies are pre-embedded and preliminarily assembled in the prefabricated component factory, and only simple processes such as bolt connection and welding need to be performed at the site, which greatly simplifies the operation difficulty and quality control requirements of the construction site. According to the different heights of the prefabricated beam 30 in actual engineering, the present assembly type shear wall structure provides two adaptive forms: when the beam height is small, the solid web connection scheme is adopted (as shown in Figures 1 to 5 ), and when the beam height is large, the lattice type connection scheme is adopted (as shown in Figures 6 to 11 ). The main difference between the two forms is the specific structural details of the lower wall end extension 221 and the beam end connecting assembly 300.

[0083] The first embodiment: the lower wall end extension 221 comprises an outer web plate 2211, an outer upper flange 2212 and an outer lower flange 2213; the outer web plate 2211 is vertically arranged, the top end thereof is welded with the outer upper flange 2212, and the bottom end thereof is connected with the outer lower flange 2213; a plurality of first bolt holes 224 are formed in the outer web plate 2211, which are used for realizing the bolt connection with the beam end connecting assembly 300.

[0084] The beam end connecting assembly 300 comprises a beam end overhanging web 310, an upper beam flange 320 and a lower beam flange 330. The beam end overhanging web 310 is arranged vertically, with its upper end connected to the upper beam flange 320 and its lower end connected to the lower beam flange 330, wherein the beam end overhanging web 310 and the lower beam flange 330 are partially embedded inside the body of the precast beam 30 to achieve anchoring. The exposed part of the beam end overhanging web 310 is provided with a second bolt hole 340, which is aligned with the first bolt hole 224 on the lower wall end overhanging piece 221 and connected by bolts; the upper beam flange 320 can be welded to the overhanging upper flange 2212 after installation, and the lower beam flange 330 is welded to the overhanging lower flange 2213, forming a double connecting mechanism. In addition, the embedded section of the beam end overhanging web 310 in the precast beam 30 is provided with studs 370, and the additional steel bars on the surface of the precast beam 30 are hooked on the hooks on the outside of these studs 370 during factory production, with at least one additional bar on each side to enhance the interface shear capacity and integrity.

[0085] The second embodiment: due to the increase of beam height, to adapt to larger span and load demand, the lower wall end overhanging piece 221 is designed as a double-layer structure, including an upper overhanging web 2214, a lower overhanging web 2215, an overhanging upper flange 2212 and an overhanging lower flange 2213. The upper overhanging web 2214 is located above, with its top connected to the overhanging upper flange 2212; the lower overhanging web 2215 is located below, with its bottom connected to the overhanging lower flange 2213; both overhanging webs 2211 are provided with first bolt holes 224, forming upper and lower double-layer connecting points.

[0086] Correspondingly, the beam end connecting assembly 300 is also upgraded to a double-layer structure, including an upper beam end overhanging web 350, a lower beam end overhanging web 360, an upper beam flange 320 and a lower beam flange 330. The upper beam end overhanging web 350 is located above and connected to the upper beam flange 320; the lower beam end overhanging web 360 is located below and connected to the lower beam flange 330; the upper beam end overhanging web 350 and the lower beam end overhanging web 360 are integrally connected by at least one rectangular steel plate; and the flanges and webs are partially embedded in the prefabricated beam 30 to ensure anchoring reliability. The exposed parts of the upper beam end overhanging web 350 and the lower beam end overhanging web 360 are provided with second bolt holes 340, which are matched and connected with the first bolt holes 224 on the upper and lower overhanging webs 2215, respectively, to realize double-layer bolt connection. In the subsequent welding process, the upper beam flange 320 is welded with the overhanging upper flange 2212, and the lower beam flange 330 is welded with the overhanging lower flange 2213. Similarly, the embedded sections of the upper beam end overhanging web 350 and the lower beam end overhanging web 360 in the prefabricated beam 30 are provided with studs 370, and the additional reinforcements on the prefabricated floor 40 are hooked on the studs 370 through the outer hooks during factory prefabrication. At least one additional reinforcement is provided on each side to ensure the connection strength between the concrete beam body and the embedded steel plate at the end and the overall structural performance of the structure. In addition, based on the above two embodiments, according to actual needs, a third embodiment can also be formed, which is specifically: using the lower wall end overhanging piece 221 in the first embodiment and the beam end connecting assembly 300 in the second embodiment, forming the real-web lower wall end overhanging piece 221 and the lattice type beam end connecting assembly 300 cooperating with each other. Similarly, based on the above two embodiments, according to actual needs, a fourth embodiment can also be formed, which is specifically: using the lower wall end overhanging piece 221 in the second embodiment and the beam end connecting assembly 300 in the first embodiment, forming the lattice type lower wall end overhanging piece 221 and the real-web beam end connecting assembly 300 cooperating with each other. In summary, the real-web lower wall end overhanging piece 221 can cooperate with the real-web beam end connecting assembly 300, and the lattice type lower wall end overhanging piece 221 can also cooperate with the lattice type beam end connecting assembly 300.

[0087] Based on the above structural design, the assembly type shear wall structure construction method provided by the embodiment specifically includes the following processes: first, hoist the lower prefabricated wall 20 into position and complete correction and fixation; then hoist the prefabricated beam 30, so that the beam end connection assembly 300 and the lower wall top connection assembly 200 are accurately aligned, first fastened and connected by using high-strength bolts, and then welded and reinforced; then hoist the prefabricated floor 40, and stably place it on the top of the prefabricated beam 30 or the lower prefabricated wall 20; then hoist the upper prefabricated wall 10, slowly lower it, and align it with the lower wall top connection assembly 200, until the edge foot plate 120 is accurately seated on the outer extending upper flange 2212, and vertical positioning is completed; then perform welding work between the upper wall pre-buried connection component 110 and the lower wall pre-buried connection component 220; finally, bind the web on the top of the prefabricated beam 30, and weld and connect the web with the beam upper flange 320 to form a complete stress system, and prepare for the concrete pouring stage. The whole process does not need to set temporary support, greatly improves the construction speed and safety.

[0088] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fabricated shear wall structure, characterized by, The application relates to a prefabricated shear wall structure. The prefabricated shear wall structure comprises an upper prefabricated wall (10), a lower prefabricated wall (20) and a prefabricated beam (30). The top of the lower prefabricated wall (20) is provided with a lower wall top connecting assembly (200), and the horizontal two ends of the lower wall top connecting assembly (200) protrude from the side edges of the lower prefabricated wall (20). The end of the prefabricated beam (30) is provided with a beam end connecting assembly (300) which is used for connecting with the lower wall top connecting assembly (200). The bottom of the upper prefabricated wall (10) is provided with an upper wall bottom connecting assembly (100) which is used for connecting with the lower wall top connecting assembly (200), and the upper wall bottom connecting assembly (100) comprises an upper wall embedded connecting component (110). The lower wall top connecting assembly (200) comprises a lower wall protruding connecting component (210), a lower wall embedded connecting component (220) and a lower wall vertical rib connecting plate (230). The top of the lower prefabricated wall (20) is provided with the lower wall protruding connecting component (210) which protrudes from the side edges of the lower prefabricated wall (20), and the lower wall protruding connecting component (210) is used for connecting with the beam end connecting assembly (300). The lower wall embedded connecting component (220) is arranged between the two lower wall protruding connecting components (210), and the lower wall embedded connecting component (220) is used for connecting the upper prefabricated wall (10), and the upper wall embedded connecting component (110) is welded with the lower wall embedded connecting component (220). The lower wall vertical rib connecting plate (230) is arranged in multiple, and the lower wall vertical rib connecting plate (230) is used for connecting the lower wall embedded connecting component (220) and the lower wall protruding connecting component (210), or is used for connecting two adjacent lower wall embedded connecting components (220) to form a complete vertical steel bar force transmission path.

2. The prefabricated shear wall structure according to claim 1, wherein The lower wall protruding connecting component (210) comprises a lower wall end protruding piece (221), an outer side column limb (222) and an inner side column limb (223). The lower wall end protruding piece (221) is partially arranged to protrude from the lower prefabricated wall (20), and the part of the lower wall end protruding piece (221) which protrudes from the lower prefabricated wall (20) is provided with a first bolt hole (224) so that the lower wall end protruding piece (221) can be connected with the beam end connecting assembly (300) through bolts. The outer side column limb (222) is partially arranged to protrude from the lower prefabricated wall (20), and the lower wall end protruding piece (221) is connected with the outer side column limb (222) by extending into the end of the lower prefabricated wall (20). The inner column limb (223) is partially protruding from the lower prefabricated wall (20), the inner column limb (223) is connected with the outer column limb (222), and the side of the inner column limb (223) away from the outer column limb (222) is connected with the lower wall embedded connecting member (220) through the lower wall vertical rib connecting plate (230). The side of the outer column limb (222) close to the inner column limb (223) is provided with an upper horizontal rib plate (225) and a lower horizontal rib plate (226) in sequence from top to bottom. 3.The prefabricated shear wall structure according to claim 2, characterized in that, The lower wall outer extension connecting member (210) further comprises an upper connecting plate (227), a middle connecting plate (228) and a lower connecting plate (229). The upper connecting plate (227) is horizontally arranged, one end of the upper connecting plate (227) is inserted into the slot of the outer column limb (222) and connected with the outer column limb (222), and the other end of the upper connecting plate (227) is inserted into the slot of the inner column limb (223) and connected with the inner column limb (223). The middle connecting plate (228) is located below the upper connecting plate (227), the middle connecting plate (228) is vertically arranged, and both ends of the middle connecting plate (228) are connected with the outer column limb (222) and the inner column limb (223) respectively. The lower connecting plate (229) is located below the middle connecting plate (228), the lower connecting plate (229) is vertically arranged, and both ends of the lower connecting plate (229) are connected with the outer column limb (222) and the inner column limb (223) respectively. 4.The prefabricated shear wall structure according to claim 2, characterized in that, The lower wall end outer extension member (221) comprises an outer extension web plate (2211), an outer extension upper flange (2212) and an outer extension lower flange (2213). The top of the outer extension web plate (2211) is connected with the outer extension upper flange (2212), the bottom of the outer extension web plate (2211) is connected with the outer extension lower flange (2213), and the outer extension web plate (2211) has a plurality of first bolt holes (224). 5.The prefabricated shear wall structure according to claim 2, characterized in that, The lower wall end outer extension member (221) comprises an upper outer extension web plate (2214), a lower outer extension web plate (2215), an outer extension upper flange (2212) and an outer extension lower flange (2213). The upper outer extension web plate (2214) is located above the lower outer extension web plate (2215), the top of the upper outer extension web plate (2214) is connected with the outer extension upper flange (2212), and the bottom of the lower outer extension web plate (2215) is connected with the outer extension lower flange (2213). The upper outer extension web plate (2214) and the lower outer extension web plate (2215) both have first bolt holes (224). 6.The prefabricated shear wall structure according to claim 4 or 5, characterized in that, The beam end connecting assembly (300) comprises a beam end overhanging web (310), an upper beam flange (320) and a lower beam flange (330); The top of the beam end overhanging web (310) is connected with the upper beam flange (320), and the bottom of the beam end overhanging web (310) is connected with the lower beam flange (330), and the beam end overhanging web (310) and the lower beam flange (330) are both partially embedded in the prefabricated beam (30); The part of the beam end overhanging web (310) protruding from the prefabricated beam (30) is provided with a second bolt hole (340) for matched connection with the first bolt hole (224); The upper beam flange (320) is used for welded connection with the overhanging upper flange (2212); The lower beam flange (330) is used for welded connection with the overhanging lower flange (2213).

7. The fabricated shear wall structure according to claim 4 or 5, characterized in that, The beam end connecting assembly (300) comprises a beam end upper overhanging web (350), a beam end lower overhanging web (360), an upper beam flange (320) and a lower beam flange (330); The beam end upper overhanging web (350) is arranged above the beam end lower overhanging web (360), the top of the beam end upper overhanging web (350) is connected with the upper beam flange (320), and the bottom of the beam end lower overhanging web (360) is connected with the lower beam flange (330), and the beam end upper overhanging web (350), the beam end lower overhanging web (360) and the lower beam flange (330) are all partially embedded in the prefabricated beam (30); The parts of the beam end upper overhanging web (350) and the beam end lower overhanging web (360) protruding from the prefabricated beam (30) are both provided with a second bolt hole (340) for matched connection with the first bolt hole (224); The upper beam flange (320) is used for welded connection with the overhanging upper flange (2212); The lower beam flange (330) is used for welded connection with the overhanging lower flange (2213).

8. The fabricated shear wall structure according to claim 4 or 5, characterized in that, The upper wall bottom connecting assembly (100) comprises an edge foot plate (120); A plurality of the upper wall embedded connecting members (110) are sequentially and spacedly arranged along the length direction of the bottom of the upper prefabricated wall (10), and the plurality of the upper wall embedded connecting members (110) are used for one-to-one corresponding connection with the outer column limb (222), the inner column limb (223) and the plurality of the lower wall embedded connecting members (220); The edge foot plate (120) is arranged at the bottom of the upper wall embedded connecting member (110) protruding from the upper wall embedded connecting member (110), so that after the edge foot plate (120) abuts against the overhanging upper flange (2212), the upper wall embedded connecting member (110) has a welding gap between the outer column limb (222), the inner column limb (223) and the plurality of the lower wall embedded connecting members (220).

9. A construction method based on the fabricated shear wall structure according to any one of claims 1-8, characterized in that, The method comprises the following steps: After the lower prefabricated wall (20) is fixed, the prefabricated beam (30) is hoisted, the beam end connecting assembly (300) is aligned with the lower wall top connecting assembly (200), and then the beam end connecting assembly (300) is fastened and connected by bolts, and finally the beam end connecting assembly (300) is welded and connected; The prefabricated floor (40) is hoisted and placed on the beam or wall top; The upper prefabricated wall (10) is hoisted and aligned with the lower prefabricated wall (20), and after vertical positioning is completed, the upper wall embedded connecting component (110) is connected with the lower wall embedded connecting component (220); The prefabricated beam (30) is tied and connected with the beam upper flange (320); The beam end connecting assembly (300) comprises a beam end extruded web (310), a beam upper flange (320) and a beam lower flange (330).

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