Multifunctional induction joint of fabricated building

Abstract

The utility model belongs to the technical field of concrete impermeability and crack resistance, and particularly discloses a multifunctional induction joint of a fabricated building, which comprises a fixing part and an induction joint part, the fixing part is connected with the inducing joint part, and the local structure of the fixing part is located in a horizontal prefabricated part post-pouring area between the vertical prefabricated part and the horizontal prefabricated part; the induced joint component is arranged at the upper end of the fixing component and arranged at the position, where the cracking behavior needs to be controlled, in the post-pouring area of the horizontal prefabricated component. According to the multifunctional induction joint, the partial structure of the post-pouring area of the horizontal prefabricated part also serves as the fixing part, and the induction joint part is fixed to the upper end of the fixing part, so that the multifunctional induction joint is easy and efficient to deploy and can be directly used for prefabricated buildings with concrete post-pouring operation in various structural easy-to-crack areas; meanwhile, the crack can be effectively guided to develop along the preset position and path, and the development speed of the crack is restrained.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete anti-seepage and anti-cracking, and more specifically relates to a multifunctional induction joint of an assembled building. Background Art

[0002] Concrete has high compressive strength but low tensile strength. Therefore, temperature, external load and concrete shrinkage can easily cause internal stress to exceed tensile strength, causing concrete cracking. Cracks not only affect the appearance quality of the structure, but are also more likely to become the source of structural performance degradation and safety hazards. In the construction of prefabricated structures, the installation of prefabricated components is the basic work, after which it is usually necessary to cast concrete on site in the connection area or superposition layer of these components, which is the so-called post-cast concrete. This step is essential to ensure the durability, continuity and stability of the overall structure. However, when post-cast concrete is subjected to load or temperature changes, it may produce large tensile stress, thereby causing cracks in the connection area between it and the prefabricated components. At the same time, when in a humid and watery environment, the problem of crack resistance and impermeability is more prominent. The development of cracks and the infiltration of media such as water and air will cause corrosion to the metal inside the concrete structure, further affecting the durability of the structure.

[0003] In the prior art, a Chinese patent with document number CN220848089U discloses a basement concrete wall induced joint construction structure, comprising a shell, a module is slidably connected to the middle part of the shell, a fixing plate is fixedly connected to the outer side of the shell, a bolt is threadedly connected to the middle part of the fixing plate, an insert block is fixedly connected to the outer side of the shell, a clamping block is slidably connected to the middle part of the insert block, one end of the clamping block is fixedly connected to a compression spring 1, and the other end of the compression spring 1 is fixedly connected to the middle part of the insert block, a groove is provided in the middle part of the fixing plate, a clamping groove is provided on the inner wall of the groove, and the clamping block is slidably connected to the middle part of the clamping groove.

[0004] Although the Chinese patent with document number CN220848089U enables the induced molds to be stably connected through the cooperation of structures such as clamping blocks, clamping slots, inserts, and sliding rods, thereby fixing adjacent fixed plates together under the action of the clamping blocks and reducing the gaps between the fixed plates caused by shaking, the induced seam construction structure of the above patent still does not solve some problems of the existing induced seam structure: (1) The technical solution includes multiple components and connection methods, such as shells, modules, fixed plates, bolts, inserts, clamps, compression springs, etc., which may make the structure too complicated and increase the difficulty of manufacturing and assembly; (2) Components such as compression springs in the elastic component may gradually lose elasticity over time, affecting the reliability and durability of the entire structure; (3) Due to the complex structure, it may involve more material and processing costs, which may lead to a higher cost for the entire construction structure; (4) Due to the complex structure, its versatility and adaptability may be limited. Utility Model Content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a multifunctional induction joint of an assembled building, wherein part of the structure of the post-casting area of ​​the horizontal prefabricated component is used as the fixing component, and then the induction joint component is fixed on the upper end of the fixing component, so that the construction of the multifunctional induction joint is completed; the multifunctional induction joint is simple to deploy and efficient, and can be directly used for assembled buildings with concrete post-casting operations in various structural crack-prone areas, and the simple and reliable arrangement method reduces the construction difficulty, ensures the construction quality and consistency, and enables non-professional workers to quickly master the installation skills, greatly reducing the technical threshold of construction; at the same time, the arrangement method of the induction joint component can effectively guide the cracks to develop along the preset position and path, so that the cracks are away from the easily rusted parts such as steel sections and steel bars, control the cracks in the shallow layer of the post-cast concrete, and inhibit the development speed of the cracks, significantly improving the integrity and durability of the structure; secondly, through the reasonable layout of the induction joint component and the close cooperation of the fixing component, a solid waterproof barrier is formed, which effectively prevents the penetration of water, further protects the interior of the concrete structure from erosion, prolongs the service life of the building, and reduces the later maintenance and repair costs. In addition, the induced seam can achieve the integration of crack guidance, suppression and repair functions by replacing part of the material.

[0006] In order to achieve the above-mentioned object, the utility model provides a multifunctional induction joint of an assembled building, comprising: a fixing component and an induction joint component, wherein:

[0007] The fixing member is connected to the inducing joint member, and the local structure is located in the post-casting area of ​​the horizontal prefabricated component between the vertical prefabricated component and the horizontal prefabricated component;

[0008] The inducing seam component includes: a mesh and a waterstop; the mesh is arranged inside the post-casting area of ​​the horizontal prefabricated component, and its cross-section is L-shaped as a whole and includes a vertical edge and a horizontal edge. At the same time, the vertical edge is parallel to the vertical prefabricated component, and the horizontal edge is parallel to the horizontal prefabricated component; the two waterstops are respectively arranged at the two ends of the horizontal edge and the upper end of the fixed steel wire.

[0009] Furthermore, the upper end of the vertical edge does not exceed the upper surface of the post-casting area of ​​the horizontal prefabricated component.

[0010] Furthermore, both longitudinal sides of the mesh sheet are spaced apart from the longitudinal side surfaces of the post-casting area of ​​the horizontal prefabricated component.

[0011] Furthermore, one end of the horizontal side is connected to the lower end of the vertical side.

[0012] Furthermore, the horizontal edge is oriented toward the center position of the horizontal prefabricated component, so that the angle between the horizontal edge and the vertical edge is oriented toward the center position of the horizontal prefabricated component.

[0013] Furthermore, the mesh is made of a mesh material including a galvanized mesh, a stainless steel mesh or a weather-resistant high molecular polymer mesh.

[0014] Furthermore, the waterstop is made of a material including rubber or polyurethane, and has the same length as that of the mesh.

[0015] Furthermore, the fixing component includes a first positioning member, which is vertically arranged at a prefabricated area of ​​a connection node between the vertical prefabricated component and the horizontal prefabricated component and is exposed on an upper surface of the prefabricated area of ​​the connection node.

[0016] Furthermore, the fixing component includes a second positioning member, which is vertically arranged on the side of the vertical prefabricated component and exposed from the side of the vertical prefabricated component.

[0017] Furthermore, the second positioning member is made of a material including a metal material, a hard composite material or a resin.

[0018] Furthermore, the second positioning member is made of an iron-based shape memory alloy and is linear in shape, and an electric heating structure including a cable connecting its two ends or a metal coil wound around its circumference is pre-arranged on the outside.

[0019] Furthermore, the second positioning member extends through a groove provided at a corresponding position of the vertical edge.

[0020] Furthermore, the fixing component includes the fixing steel wire, and the fixing steel wire is connected to the first positioning member and the second positioning member respectively.

[0021] Furthermore, the fixing steel wire is mainly L-shaped, and includes a horizontal section and a non-horizontal section, one end of the horizontal section is connected to the first positioning member, and one end of the non-horizontal section is connected to the second positioning member.

[0022] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0023] (1) The multifunctional induction joint of the utility model is constructed by using part of the structure of the post-casting area of ​​the horizontal prefabricated component as the fixing component or arranging an additional fixing component, and then fixing the induction joint component on the upper end of the fixing component. The multifunctional induction joint is simple to deploy and efficient, and can be directly used in prefabricated buildings with concrete post-casting operations in various structural crack-prone areas. The simple and reliable arrangement method reduces the construction difficulty, ensures the construction quality and consistency, and enables non-professional workers to quickly master the installation skills, greatly reducing the technical threshold of construction. At the same time, the arrangement method of the induction joint component can effectively guide the cracks to develop along the preset position and path, keep the cracks away from the easily corroded parts such as steel sections and steel bars, control the cracks in the shallow layer of the post-cast concrete, and inhibit the development speed of the cracks, thereby significantly improving the integrity and durability of the structure.

[0024] (2) The multifunctional guide joint of the utility model forms a solid waterproof barrier through the reasonable layout of the guide joint components and the close cooperation of the fixing components, which effectively prevents the penetration of water, further protects the interior of the concrete structure from erosion, prolongs the service life of the building, and reduces the cost of subsequent maintenance and repair.

[0025] (3) The multifunctional induction joint of the utility model simplifies the construction process of the fixing components and reduces costs by using the first positioning member and the second positioning member, which are used to form the post-casting area of ​​the horizontal prefabricated component and ensure the structural stability, as the fixing components.

[0026] (4) The multifunctional induced joint of the utility model further controls the crack formation position and possible water seepage position by directing the horizontal edge toward the center position of the horizontal prefabricated component and making the angle between the horizontal edge and the vertical edge toward the center position of the horizontal prefabricated component, thereby improving the stability of the prefabricated concrete structure.

[0027] (5) The multifunctional induced joint of the utility model uses an iron-based memory alloy to prepare the second positioning piece, so that the multifunctional induced joint can effectively cooperate with the crack closing technology to achieve crack resistance and crack inhibition. That is, after the induced joint cracks, the second positioning piece is heated by energizing an electric cable or by means of an electromagnetic heating coil to expose the vertical prefabricated component area, so that the memory alloy shrinks to generate local prestress to achieve crack closure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of an assembled prefabricated concrete structure according to an embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of Example A of the present utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the oblique steel wire at location A of the embodiment of the present invention.

[0031] In all the drawings, the same figure marks represent the same technical features, specifically: 1-vertical precast component, 2-horizontal precast component, 3-connection node, 4-horizontal precast component post-casting area, 5-connection node precast area, 6-first positioning piece, 7-second positioning piece, 8-fixing steel wire, 9-mesh, 91-vertical edge, 92-horizontal edge, 10-waterstop. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figures 1 to 3 As shown, an embodiment of the utility model provides a multifunctional induced seam of an assembled building, comprising: a fixing component and an induced seam component; the fixing component is connected to the induced seam component, and the local structure is located in the horizontal prefabricated component post-casting area 4 between the vertical prefabricated component 1 and the horizontal prefabricated component 2; the induced seam component is arranged at the upper end of the fixing component and is arranged at the position inside the horizontal prefabricated component post-casting area 4 where cracking behavior needs to be controlled; in the process of paving the assembled prefabricated concrete post-casting concrete, by using part of the structure of the horizontal prefabricated component post-casting area 4 as the fixing component or the additional fixing component, and then fixing the induced seam component to the upper end of the fixing component, the construction of the multifunctional induced seam is completed; the multifunctional induced seam is simple to deploy and efficient, and can be directly used in assembled buildings with various structural crack-prone areas where concrete post-casting operations exist, and it is simple The reliable arrangement reduces the construction difficulty, ensures the construction quality and consistency, and enables non-professional workers to quickly master the installation skills, greatly reducing the technical threshold of construction; at the same time, the arrangement of the induction joint components can effectively guide the cracks to develop along the preset position and path, keep the cracks away from the easily corroded parts such as steel sections and steel bars, control the cracks in the shallow layer of the post-poured concrete, and inhibit the development speed of the cracks, significantly improving the integrity and durability of the structure; secondly, through the reasonable layout of the induction joint components and the close cooperation of the fixing components, a solid waterproof barrier is formed, which effectively prevents the penetration of water, further protects the interior of the concrete structure from erosion, extends the service life of the building, and reduces the subsequent maintenance and repair costs; in addition, the induction joint can realize the integration of crack guidance, inhibition and repair functions by cooperating with shape memory alloys and heating devices.

[0034] Specifically, Figures 1 to 3 As shown, the fixing component is connected to the inducing joint component, and the local structure is located in the post-casting area 4 of the horizontal prefabricated component between the vertical prefabricated component 1 and the horizontal prefabricated component 2, which is used to ensure the stability of the inducing joint component during the construction of the post-casting area 4 of the horizontal prefabricated component; the fixing component includes: a first positioning member 6, a second positioning member 7 and a fixing steel wire 8.

[0035] The first positioning member 6 is vertically arranged at the connection node prefabricated area 5 between the vertical prefabricated component 1 and the horizontal prefabricated component 2 .

[0036] Preferably, the first positioning member 6 is exposed from the upper surface of the connection node prefabricated area 5 .

[0037] The second positioning member 7 is vertically arranged on the side of the vertical prefabricated component 1 .

[0038] Preferably, the second positioning member 7 is exposed from a side surface of the vertical prefabricated component 1 .

[0039] Preferably, the horizontal height of the second positioning member 7 is higher than the highest point of the first positioning member 6 .

[0040] Preferably, the second positioning member 7 is made of a material including a metal material, a hard composite material or a resin.

[0041] In an optional embodiment, the second positioning member 7 is made of an iron-based memory alloy and has a linear shape. An electric heating structure including a cable connecting its two ends or a metal coil wound around its circumference is pre-provided on the outside, so that the multifunctional induced seam can effectively cooperate with the crack closing technology to achieve crack resistance and crack inhibition, that is, after the induced seam cracks, the second positioning member 7 is heated by energizing a cable or an electromagnetic heating coil to expose the vertical prefabricated component 1 area, so that the memory alloy shrinks to generate local prestress to achieve crack closure; the heating method includes power supply or electromagnetic induction.

[0042] Preferably, the first positioning member 6 and the second positioning member 7 can both be used to form the post-casting area 4 of the horizontal prefabricated component and ensure structural stability, thereby simplifying the construction process of the fixing components and reducing costs.

[0043] In an optional embodiment, the first positioning member 6 and the second positioning member 7 include components such as anchors or steel bars.

[0044] The fixing wire 8 is connected to the first positioning member 6 and the second positioning member 7 respectively.

[0045] Preferably, the fixing wire 8 is mainly L-shaped, including a horizontal section and a non-horizontal section, one end of the horizontal section is connected to the first positioning member 6 , and one end of the non-horizontal section is connected to the second positioning member 7 .

[0046] In an optional embodiment, the connection point between the horizontal section of the fixed steel wire 8 and the first positioning member 6 is located in an area above 1 / 2 of the length of one end of the first positioning member 6 exposed from the upper surface of the connection node prefabricated area 5, and the connection point between the non-horizontal section and the second positioning member 7 is located in the anchor head area of ​​the second positioning member 7, which is used to shorten the length of the horizontal section, thereby ensuring structural stability and the position of the induced seam component, while effectively reducing material costs.

[0047] Preferably, the local structure in which the fixing component is located in the post-casting area 4 of the horizontal prefabricated component between the vertical prefabricated component 1 and the horizontal prefabricated component 2 includes: the first positioning member 6 is exposed on the upper surface of the connection node prefabricated area 5 and is located in the post-casting area 4 of the horizontal prefabricated component, the second positioning member 7 is exposed on the side of the vertical prefabricated component 1 and is located in the post-casting area 4 of the horizontal prefabricated component, and the fixing steel wire 8.

[0048] Specifically, Figures 1 to 3 As shown, the inducing seam component is arranged at the upper end of the fixing component and at a location inside the post-casting area 4 of the horizontal prefabricated component that is prone to cracking and where the cracking behavior needs to be actively controlled, and is used to effectively guide the cracks to develop along a preset path, thereby avoiding the formation of random cracks and the occurrence of cracks in key locations of the structure; the inducing seam component includes: a mesh 9 and a waterstop 10.

[0049] The mesh 9 is arranged inside the post-casting area 4 of the horizontal prefabricated component.

[0050] Preferably, the mesh 9 is made of a mesh material including a galvanized mesh, a stainless steel mesh or a weather-resistant polymer mesh, and the thickness of the steel sheet is 1.3-1.7 mm.

[0051] Preferably, the mesh 9 has an overall L-shaped cross-section and includes a vertical edge 91 and a horizontal edge 92; the vertical edge 91 is parallel to the vertical prefabricated component 1, and the horizontal edge 92 is parallel to the horizontal prefabricated component 2, so as to ensure that the generation of cracks meets expectations.

[0052] Preferably, the upper surface of the mesh 9, that is, the upper end of the vertical edge 91 does not exceed the upper surface of the horizontal prefabricated component post-casting area 4, and both longitudinal sides of the mesh 9 are at a distance from the longitudinal side surfaces of the horizontal prefabricated component post-casting area 4, and the distance is greater than the required minimum concrete protective layer thickness requirement.

[0053] In an optional embodiment, when the second positioning member 7 is mainly made of an iron-based memory alloy, the second positioning member 7 extends through a groove provided at a corresponding position of the vertical edge 91 to further enhance the structural strength of the post-casting area 4 of the horizontal prefabricated component.

[0054] Preferably, one end of the horizontal edge 92 is connected to the lower end of the vertical edge 91. At the same time, the horizontal edge 92 is oriented toward the center position of the horizontal prefabricated component 2, so that the angle between it and the vertical edge 91 is oriented toward the center position of the horizontal prefabricated component 2, which is used to further control the position where cracks form and possible water seepage positions.

[0055] The two water stop strips 10 are respectively arranged at the two ends of the horizontal edge 92 and the upper end of the fixing steel wire 8 .

[0056] Preferably, the waterstop strip 10 provided at the connection between the vertical edge 91 and the horizontal edge 92 is used to prevent stress concentration from occurring when the crack develops to the corner of the mesh, causing the crack to develop close to the node of the prefabricated component, thereby ensuring that the crack development can continue along the mesh; the waterstop strip 10 provided at the other end of the horizontal edge 92 is used to passivate the crack tip and release the cracking stress.

[0057] Preferably, the water stop strip 10 is made of a material including rubber or polyurethane, and has the same length as that of the mesh 9, so as to accommodate the subsequent generation of cracks and possible water penetration.

[0058] Preferably, the water stop strip 10 comprises a cylinder in a shape of 3 / 4 or 1 / 2, so as to cover the end points of the horizontal edge 92, control the formation of cracks, and avoid disorderly penetration of water.

[0059] In an optional embodiment, the diameter of the waterstop is 18-22 mm, thereby achieving a certain balance between construction cost and the effect of controlling crack formation.

[0060] The working principle of the utility model is as follows: during the prefabrication process of the assembled precast concrete factory, the installation position of the multifunctional induction joint is positioned and laid out in advance to ensure the accuracy of the embedded position; after the horizontal prefabricated component 2 is connected to the vertical prefabricated component 1, concrete is poured in the connection node area, and then the connection node prefabricated area 5 is formed; after the first positioning member 6 and the second positioning member 7 are installed at the connection node 3, a fixing steel wire 8 is installed between the first positioning member 6 and the second positioning member 7 corresponding to the horizontal position; then, the water stop 10 and the mesh 9 are placed in the appropriate position of the fixing steel wire 8 and fixed to ensure that they will not be skewed or loosened; after completing the installation of the multifunctional induction joint After being fixed, the post-casting area 4 of the horizontal prefabricated component is constructed. During the pouring process, attention should be paid to the pouring point avoiding the multifunctional induction joint to prevent the impact force during concrete pouring from damaging it. During the subsequent use of the multifunctional induction joint, due to the action of the induction joint component, the surface cracks of the concrete structure will be formed first at the vertical edge 91, and then develop vertically downward along the vertical edge 91 to the position of the waterstop 10. After that, the cracks develop horizontally along the horizontal edge 92 in the direction away from the vertical prefabricated component 1 until they contact the waterstop 10 and stop developing, so that the infiltration of external water also follows this path, effectively protecting the metals such as steel bars or steel sections inside the prefabricated concrete, and improving the durability of the connection node.

[0061] In an optional embodiment, the multifunctional induced joint can be applied to the concrete structure of a non-prefabricated building to control the position of induced crack formation, control the crack formation speed, and improve the stability of the concrete structure.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0064] In this patent, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; those skilled in the art will easily understand that the above are only preferred embodiments of the utility model and are not used to limit the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A multifunctional induction joint for prefabricated buildings, characterized in that: include: Fixed parts and inducing seam parts, including: The fixing component is connected to the inducing joint component, and the local structure is located in the horizontal prefabricated component post-casting area (4) between the vertical prefabricated component (1) and the horizontal prefabricated component (2); The inducing seam component comprises: a mesh (9) and a water stop strip (10); the mesh (9) is arranged inside the post-casting area (4) of the horizontal prefabricated component, and its cross-section is L-shaped as a whole and comprises a vertical edge (91) and a horizontal edge (92); at the same time, the vertical edge (91) is parallel to the vertical prefabricated component (1), and the horizontal edge (92) is parallel to the horizontal prefabricated component (2); the two water stop strips (10) are respectively arranged at the two ends of the horizontal edge (92) and the upper end of the fixing steel wire (8).

2. The multifunctional induction seam according to claim 1, characterized in that: The upper end of the vertical edge (91) does not exceed the upper surface of the post-casting area (4) of the horizontal prefabricated component.

3. The multifunctional induction seam according to claim 1, characterized in that: Both longitudinal sides of the mesh sheet (9) are spaced from the longitudinal side surfaces of the post-casting area (4) of the horizontal prefabricated component.

4. The multifunctional induction seam according to claim 1, characterized in that: One end of the horizontal edge (92) is connected to the lower end of the vertical edge (91).

5. The multifunctional induction seam according to claim 4, characterized in that: The horizontal edge (92) is oriented toward the center of the horizontal prefabricated component (2), so that the angle between it and the vertical edge (91) is oriented toward the center of the horizontal prefabricated component (2).

6. The multifunctional induction seam according to any one of claims 1 to 5, characterized in that: The mesh (9) is made of a mesh material including a galvanized mesh, a stainless steel mesh or a weather-resistant high molecular polymer mesh.

7. The multifunctional induction seam according to any one of claims 1 to 5, characterized in that: The water stop strip (10) is made of a material including rubber or polyurethane, and has the same length as the mesh (9).

8. The multifunctional induction seam according to any one of claims 1 to 5, characterized in that: The fixing component comprises a first positioning member (6), the first positioning member (6) being vertically arranged at a connection node prefabricated area (5) between the vertical prefabricated component (1) and the horizontal prefabricated component (2), and being exposed on an upper surface of the connection node prefabricated area (5).

9. The multifunctional induction seam according to claim 8, characterized in that: The fixing component comprises a second positioning member (7), the second positioning member (7) being vertically arranged on a side surface of the vertical prefabricated component (1) and exposed from the side surface of the vertical prefabricated component (1).

10. The multifunctional induction seam according to claim 9, characterized in that: The second positioning member (7) is made of a material including a metal material, a hard composite material or a resin.

11. The multifunctional induction seam according to claim 10, characterized in that: The second positioning member (7) is made of an iron-based shape memory alloy and is linear in shape. An electric heating structure including a cable connecting its two ends or a metal coil wound around its circumference is pre-arranged on the outside.

12. The multifunctional induction seam according to claim 11, characterized in that: The second positioning member (7) extends through a groove provided at a corresponding position of the vertical edge (91).

13. The multifunctional induction seam according to claim 9, characterized in that: The fixing component comprises the fixing steel wire (8), and the fixing steel wire (8) is respectively connected to the first positioning member (6) and the second positioning member (7).

14. The multifunctional induction seam according to claim 13, characterized in that: The fixing steel wire (8) is mainly L-shaped and comprises a horizontal section and a non-horizontal section, one end of the horizontal section is connected to the first positioning member (6), and one end of the non-horizontal section is connected to the second positioning member (7).

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