Tie and building wall

Abstract

The application discloses a tie member, comprising: a first body part extending along a first direction, having one end and another end, and having a front surface and a back surface along a second direction perpendicular to the first direction; at least one first protrusion is arranged on the front surface and / or the back surface of the first body part at the one end of the first body part; and at least one second protrusion is arranged on the front surface and / or the back surface of the first body part at the another end of the first body part. The two ends of the extension direction of the tie member are provided with the first protrusion and the second protrusion, and the two ends of the tie member can be matched with the wallboard respectively in the application state, so that the holding force of the tie member in the wallboard can be improved, and the side pressure resistance of the tie member and the wallboard to the concrete pouring process can be improved. The application further provides a building wall.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a tie rod and a building wall. Background Technology

[0002] Currently, tie rods are used in bamboo / wood or steel / aluminum formwork during construction in my country. These tie rods are mainly used to resist the lateral pressure generated during concrete pouring, preventing the formwork from bursting. These tie rods typically require manual installation and removal on-site. Due to the large number of rods, this process consumes a significant amount of manpower and time, resulting in high labor costs. Furthermore, tie rods are not strong enough to resist lateral pressure, making them prone to causing formwork bursting. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problem that tie rods are insufficient to resist the lateral pressure generated by the wall during concrete pouring. This invention provides a tie member with a first protrusion and a second protrusion at both ends in its extending direction. In application, both ends of the tie member can respectively engage with the wall panel, improving the gripping force of the tie member within the wall panel and thus enhancing its ability to resist the lateral pressure generated during concrete pouring together with the wall panel.

[0004] To solve the above-mentioned technical problems, embodiments of the present invention disclose a tie member, comprising: a first body portion extending along a first direction and having one end and another end, and along a second direction perpendicular to the first direction, the first body portion having a front side and a back side; at one end of the first body portion, at least one first protrusion is provided on the front side and / or the back side of the first body portion; at the other end of the first body portion, at least one second protrusion is provided on the front side and / or the back side of the first body portion.

[0005] With the above technical solution, the two ends of the tie member in the extension direction are provided with a first protrusion and a second protrusion. In the application state, the two ends of the tie member can respectively engage with the wall panel, which can improve the gripping force of the tie member in the wall panel, thereby enhancing the ability of the tie member and the wall panel to resist the lateral pressure during the concrete pouring process.

[0006] According to another specific embodiment of the present invention, a concave surface is formed in the middle region of the first body portion in the direction from the front to the back of the first body portion, and the concave surface protrudes from the back of the first body portion; or, in the direction from the back to the front of the first body portion, a concave surface is formed in the middle region of the first body portion, and the concave surface protrudes from the front of the first body portion.

[0007] According to another specific embodiment of the present invention, the bottom of the concave surface is provided with at least two through holes.

[0008] According to another specific embodiment of the present invention, the first body portion is flat.

[0009] According to another specific embodiment of the present invention, the first body portion is elongated and along the second direction, the thickness of the first body portion is between 1 mm and 3 mm, and the thickness of the concave surface protruding from the back or front of the first body portion is between 1 mm and 3 mm.

[0010] According to another specific embodiment of the present invention, at one end of the first body portion, at least two first protrusions are provided on both the front and back sides of the first body portion. Along the second direction, the thicknesses of adjacent first protrusions on the front side of the first body portion are different, and the thicknesses of adjacent first protrusions on the back side of the first body portion are different. At the other end of the first body portion, at least two second protrusions are provided on both the front and back sides of the first body portion. Along the second direction, the thicknesses of adjacent second protrusions on the front side of the first body portion are different, and the thicknesses of adjacent second protrusions on the back side of the first body portion are different.

[0011] According to another specific embodiment of the present invention, at least one collar is provided on the front and / or back of the first body portion, the collar being perpendicular to the first body portion and used to fit a hidden column steel bar extending along the depth direction, the hidden column steel bar fitted in the collar being movable relative to the collar along the depth direction.

[0012] According to another specific embodiment of the present invention, the hidden column steel bar located inside the collar can move a set distance in the horizontal direction, the horizontal direction being parallel to the first direction.

[0013] This application also provides a building wall, comprising:

[0014] The tie element described in any of the above items;

[0015] First wall panel;

[0016] The second wall panel is connected to the first wall panel by a plurality of the aforementioned tie members and is spaced apart from the first wall panel;

[0017] One end of each of the tie members is in a concave-convex fit with the first wall panel, and the other end is in a concave-convex fit with the second wall panel.

[0018] According to another specific embodiment of the present invention, along the first direction, each of the tie members is perpendicularly connected to the first wall panel and the second wall panel respectively; along the second direction, the first body portions of adjacent tie members are arranged parallel and face to face.

[0019] According to another specific embodiment of the present invention, the first wall panel is an inner leaf wall panel, the second wall panel is a middle wall panel, the middle wall panel is connected to the inner leaf wall panel through a plurality of the aforementioned tie members, and together with the inner leaf wall panel, they form a first cavity, and the first cavity is provided with wall structure steel bars.

[0020] According to another specific embodiment of the present invention, the inner leaf wall panel includes a first part and a second part arranged at a first angle, and the middle wall panel includes a first part and a second part arranged at a second angle;

[0021] The first portion of the inner leaf wall panel is flat, the second portion of the inner leaf wall panel is flat, the first portion of the inner leaf wall panel is longer than the second portion of the inner leaf wall panel, the first portion of the inner leaf wall panel is formed by splicing at least two first sub-parts, one of which is set at the first angle with the second portion of the inner leaf wall panel; and / or

[0022] The first part of the central wall panel is flat, the second part of the central wall panel is flat, the first part of the central wall panel is longer than the second part of the central wall panel, the first part of the central wall panel is formed by splicing together at least two second sub-parts, one of which is set at the second angle with the second part of the central wall panel.

[0023] According to another specific embodiment of the present invention, an opening extending along the depth direction of the building wall and communicating with the first cavity is formed between the two first sub-parts, the opening serving as an operating surface, and the opening being covered with a sealing template.

[0024] According to another specific embodiment of the present invention, a first sub-part connected to the second part of the inner leaf wall panel, the second part of the inner leaf wall panel, a second sub-part connected to the second part of the middle wall panel, and the second part of the middle wall panel form a corner cavity;

[0025] The remaining first sub-section of the inner leaf wall panel and the remaining second sub-section of the middle wall panel form a straight cavity.

[0026] The wall structure reinforcement includes: straight section concealed column reinforcement cage, straight section wall reinforcement cage, connecting reinforcement and corner concealed column reinforcement cage;

[0027] The corner cavity is provided with the corner concealed column steel reinforcement cage; the portion of the straight section cavity adjacent to the corner cavity is provided with the straight section wall steel reinforcement cage; the remaining portion of the straight section cavity is provided with the straight section concealed column steel reinforcement cage; the straight section wall steel reinforcement cage and the corner concealed column steel reinforcement cage are connected by connecting steel bars; wherein...

[0028] Before the first part of the inner leaf wall panel and the first part of the middle wall panel are spliced ​​together, the connecting steel bar is located in the straight section cavity;

[0029] After the first part of the inner leaf wall panel and the first part of the middle wall panel are spliced ​​together, the connecting steel bar is inserted from the straight section cavity into the corner cavity through the operating surface, thereby realizing the connection between the straight section wall steel bar skeleton and the corner hidden column steel bar skeleton.

[0030] According to another specific embodiment of the present invention, the first angle is 90° and the second angle is 90°. Attached Figure Description

[0031] Figure 1 A perspective view of a building wall according to an embodiment of the present invention is shown;

[0032] Figure 2 A top view of a building wall according to an embodiment of the present invention is shown. Figure 1 ;

[0033] Figure 3 A top view of a building wall according to an embodiment of the present invention is shown. Figure 2 ;

[0034] Figure 4 A side view of a building wall according to an embodiment of the present invention is shown;

[0035] Figure 5 A top view of a building wall according to an embodiment of the present invention is shown. Figure 3 ;

[0036] Figure 6 This invention illustrates a three-dimensional representation of the first tie member in a building wall according to an embodiment of the present invention. Figure 1 ;

[0037] Figure 7 This diagram shows a side view of the first tie member in a building wall according to an embodiment of the present invention. Figure 1 ;

[0038] Figure 8 A top view of a building wall according to an embodiment of the present invention is shown. Figure 4 ;

[0039] Figure 9 A top view of a building wall according to an embodiment of the present invention is shown. Figure 5 ;

[0040] Figure 10 This invention illustrates a three-dimensional representation of the first tie member in a building wall according to an embodiment of the present invention. Figure 2 ;

[0041] Figure 11 This diagram shows a side view of the first tie member in a building wall according to an embodiment of the present invention. Figure 2 ;

[0042] Figure 12 This figure shows a perspective view of the tie-joint fixing fixture according to an embodiment of the present invention;

[0043] Figure 13 yes Figure 12 Enlarged view of section A;

[0044] Figure 14 This shows a side view of the tie-fit assembly according to an embodiment of the present invention. Figure 1 ;

[0045] Figure 15 This shows a side view of the tie-joint fixing fixture according to an embodiment of the present invention;

[0046] Figure 16 This shows a side view of the tie-fit assembly according to an embodiment of the present invention. Figure 2 . Detailed Implementation

[0047] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0048] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0050] refer to Figures 1 to 4This invention provides a building wall 1, comprising: an inner leaf wall panel 10, a middle wall panel 20, and an outer leaf wall panel 50. Optionally, the inner leaf wall panel 10, the middle wall panel 20, and the outer leaf wall panel 50 do not have a steel reinforcement structure and are formed of concrete or other cement-based materials. The inner leaf wall panel 10 includes a first portion 11 and a second portion 12 arranged at a first angle. In this embodiment, the first angle is 90°, meaning the first portion 11 and the second portion 12 of the inner leaf wall panel 10 are perpendicular and orthogonally joined, making the inner leaf wall panel 10 as a whole "L-shaped". However, the first portion 11 and the second portion 12 of the inner leaf wall panel 10 can also be joined at other angles, i.e., the first angle can be other angles, such as 80°, 95°, 120°, etc.

[0051] The central wall panel 20 includes a first part 21 and a second part 22 arranged at a second angle. In this embodiment, the second angle is 90°, that is, the first part 21 and the second part 22 of the central wall panel 20 are perpendicular and orthogonally spliced, so that the central wall panel 20 is "L-shaped" as a whole. However, the first part 21 and the second part 22 of the central wall panel 20 can also be spliced ​​at other angles, that is, the second angle can be other angles, such as 80°, 95°, 120°, etc. The central wall panel 20 is connected to the inner leaf wall panel 10 through multiple first tie members 40, and together with the inner leaf wall panel 10, they form a first cavity 10a. The first cavity 10a is provided with wall structure steel bars 30, forming the structural functional area of ​​the building wall 1.

[0052] The outer leaf wall panel 50 includes a first part 51 and a second part 52 arranged at a third angle. In this embodiment, the third angle is 90°, that is, the first part 51 and the second part 52 of the outer leaf wall panel 50 are perpendicular and orthogonally spliced, making the outer leaf wall panel 50 as a whole "L-shaped". However, the first part 51 and the second part 52 of the outer leaf wall panel 50 can also be spliced ​​at other angles, that is, the third angle can be other angles, such as 80°, 95°, 120°, etc. The outer leaf wall panel 50 is connected to the middle wall panel 20 by multiple second tie members 41, and together with the middle wall panel 20, they form a second cavity 50a. The second cavity 50a is provided with an insulation wall panel 60, which is connected to the second tie members 41 to form the insulation functional area of ​​the building wall 1.

[0053] Therefore, the building wall 1 of this application is in the thickness direction ( Figure 3As shown in the H direction, the building wall 1 consists of two functional areas: a structural functional area and a thermal insulation functional area. The building wall 1 is a prefabricated component with a cavity structure. It has a first cavity 10a and a second cavity 50a, integrating external wall insulation and structural steel reinforcement 30. The building wall 1 is fabricated in a factory, and after hardening, it is demolded and cured before being transported to the site for assembly. The wall is hoisted into position according to the construction drawings, and then concrete is poured into the first cavity 10a to form the building wall. This eliminates the need for manual formwork erection, demolding, and insulation work on the construction site, and even eliminates the need for subsequent manual plastering.

[0054] In the factory, the insulated wall panel 60 is integrated into the prefabricated components along with the middle wall panel 20 and the outer leaf wall panel 50 via the second tie member 41, eliminating manual labor on the construction site and preventing the insulation protective layer from peeling off due to quality issues. The building wall 1 of this application adopts a cavity structure, which is lighter than traditional prefabricated concrete exterior wall panels, resulting in lower production costs and higher production efficiency. This effectively reduces costs and is more conducive to the promotion of prefabricated building technology.

[0055] And, as Figure 3 As shown, the wall structure steel bars 30 inside the first cavity 10a integrate the building's wall steel bars. Figure 3 (within areas A and B) and the reinforcement of the hidden columns ( Figure 3 Outside of areas A and B, the building wall 1 has concealed column reinforcement at both ends and wall reinforcement in the middle, eliminating the need for manual on-site reinforcement tying and saving significant labor and material costs. The first cavity 10a is the load-bearing structural layer of the building wall 1. During construction, after the building wall 1 is hoisted into place, concrete is poured into the first cavity 10a to fill it. The inner leaf wall panels 10 on both sides of the concrete and the middle wall panel 20 serve as the formwork for concrete pouring. Before pouring concrete, the openings of the cavities at both ends of the building wall 1 can be sealed with formwork. The poured concrete, together with the wall reinforcement 30 integrated into the first cavity 10a, forms the structural load-bearing wall. Furthermore, pouring concrete into the first cavity 10a allows the wall and concealed column sections to be cast in one continuous process, eliminating the overlap between cast-in-place and precast construction techniques.

[0056] Moreover, the first tie rod 40 and the second tie rod 41 are installed inside the building wall 1, eliminating the need for manual installation and disassembly on the construction site. Compared with traditional tie rods, this can effectively save labor costs, shorten the construction period, and improve the degree of industrialization in construction. Compared with fiber-reinforced composite material (FRP material) tie rods or stainless steel material tie rods in precast concrete walls, this can effectively reduce costs and is more conducive to the promotion of prefabricated building technology.

[0057] Optionally, the inner leaf wall panel 10 and the middle wall panel 20 are tensile wall panels to resist the lateral pressure generated when concrete is poured in the first cavity 10a. The materials used include, but are not limited to, cement-based composite materials, metals, and synthetic composite materials.

[0058] Optionally, the outer leaf wall panel 50 is a decorative layer of the building wall 1 and a protective layer of the insulation wall panel 60, protecting the insulation wall panel 60 from external forces and environmental damage. At the same time, the outer leaf wall panel 50 can also be integrated with the exterior decoration of the exterior wall, and the spraying and pasting process of the exterior decoration can be completed in the factory.

[0059] Optionally, the insulation wall panel 60 can be made of fire-resistant material with a rating of B or above and thermal insulation properties. The surface of the insulation wall panel 60 can be coated or film-coated as required. The location and extent of the insulation panel arrangement are determined according to the architectural drawings of the actual project.

[0060] Optionally, the first tie member 40 is used to connect the inner leaf wall panel 10 and the middle wall panel 20 together and jointly resist the lateral pressure during the concrete pouring process. The processing material used in it has a certain tensile strength, including but not limited to metal or artificially synthesized composite materials.

[0061] Optionally, the second tie member 41 connects the insulation wall panel 60, the middle wall panel 20, and the outer leaf wall panel 50 together, preventing the outer leaf wall panel 50, which has an insulation layer protection function, from falling off. To ensure a reliable connection between the second tie member 41 and the wall structure, the second tie member 41 passes through the middle wall panel 20 and the insulation wall panel 60, with one end located inside the outer leaf wall panel 50 and the other end located inside the first cavity 10a. Concrete is poured into the first cavity 10a. After the concrete hardens, the second tie member 41 can be reliably fixed inside the wall panel of the building wall 1, preventing it from falling off. This connects the structural functional area and the insulation functional area into a whole through the first tie member 40 and the second tie member 41, improving the overall strength of the building wall 1. Optionally, the second tie member 41 can be made of a material with low heat transfer, such as stainless steel.

[0062] Optionally, refer to Figure 1 , Figure 3 and Figure 4 The insulated wall panel 60 is respectively attached to the first part 21 and the second part 22 of the middle wall panel 20, and a third cavity 50b is formed between it and the outer leaf wall panel 50. That is, the insulated wall panel 60 includes a first part and a second part arranged at a fourth angle, the values ​​of the fourth angle and the second angle are equal, the first part of the insulated wall panel 60 is attached to the first part of the middle wall panel 20, and the second part of the insulated wall panel 60 is attached to the second part of the middle wall panel 20.

[0063] A third cavity 50b is formed between the outer leaf wall panel 50 and the insulation wall panel 60. The third cavity 50b is the waterproof layer of the building wall 1. Once rainwater seeps into the outer leaf wall panel 50 through the joints or cracks, the water will slide down the inner wall of the outer leaf wall panel 50 or adhere to the inner wall of the outer leaf wall panel 50 and evaporate, preventing further penetration. This provides excellent waterproofing. Therefore, the building wall 1 integrates insulation and waterproofing functions into the prefabricated components, eliminating the need for post-construction insulation and waterproofing work on the wall panels, reducing labor costs and shortening the construction cycle.

[0064] refer to Figure 1 , Figure 4 and Figure 5 The depth direction of building wall 1 ( Figure 1 and Figure 4 As shown in the Z-direction, multiple layers of first tie members 40 are provided between the inner leaf wall panel 10 and the middle wall panel 20, each layer having multiple intervals ( Figure 5 A first tie member 40 is provided in the Y-direction (showing the spacing direction); multiple layers of second tie members 41 are provided between the middle wall panel 20 and the outer leaf wall panel 50, with multiple spaced-apart second tie members 41 in each layer. (Reference) Figure 5 Taking the first tie member 40 as an example, along the extending direction of the first tie member 40 ( Figure 5 (As shown in the X direction), one end of each first tie member 40 is in concave-convex fit with the inner leaf wall panel 10, and the other end is in concave-convex fit with the middle wall panel 20.

[0065] Optionally, the two ends of the first tie member 40 are anchored into the inner leaf wall panel 10 and the middle wall panel 20, respectively. The inner leaf wall panel 10 and the middle wall panel 20 are formed of concrete or other cement-based materials, that is, the two ends of the first tie member 40 are anchored into the concrete or other cement-based materials. Since the two ends of the first tie member 40 have concave-convex fits with the inner leaf wall panel 10 and the middle wall panel 20, this arrangement can improve the gripping force of the first tie member 40 in the inner leaf wall panel 10 and the middle wall panel 20, thereby enhancing the ability of the inner leaf wall panel 10 and the middle wall panel 20 to jointly resist the lateral pressure during the concrete pouring process. Optionally, the two ends of the first tie member 40 are machined into a concave-convex shape.

[0066] In some possible implementations, one end of each second tie member 41 engages with the outer leaf wall panel 50, and the other end engages with the middle wall panel 20 or the building material cast in the first cavity 10a. That is, the two ends of the second tie member 41 engage with the outer leaf wall panel 50 and the middle wall panel 20 respectively, which can improve the gripping force of the second tie member 41 in the outer leaf wall panel 50 and the middle wall panel 20. Alternatively, the two ends of the second tie member 41 engage with the outer leaf wall panel 50 and the building material cast in the first cavity 10a respectively, which can improve the gripping force of the second tie member 41 in the outer leaf wall panel 50 and the building material cast in the first cavity 10a.

[0067] Optionally, refer to Figure 6 and Figure 7 The first tie member 40 includes components along the first direction ( Figure 6 and Figure 7 The first body portion 43 extends in the X direction (as shown in the middle X direction). Optionally, the first body portion 43 is elongated, and the length dimension of the first body portion 43 is greater than the width dimension. Figure 6 The dimension shown in the M direction; along the second direction perpendicular to the first direction ( Figure 7 (As shown in the Y direction), the first body portion 43 has a front side 46 and a back side 47; at least one first protrusion 441 is provided at one end 44 of the first body portion 43, on both the front side 46 and the back side 47, that is, one end 44 of the first body portion 43 is processed into a concave-convex shape. Figure 7 Two first protrusions 441 are shown, but the number of first protrusions 441 is not limited to this, and the appropriate selection is made according to the actual engineering needs; at the other end 45 of the first body portion 43, the front side 46 and the back side 47 of the first body portion 43 are provided with at least one second protrusion 451, that is, the other end 45 of the first body portion 43 is processed into a concave-convex shape. Figure 7 Two second protrusions 451 are shown, but the number of second protrusions 451 is not limited to this, and the appropriate selection should be made according to the actual engineering needs.

[0068] In some possible implementations, at one end of the first body portion 43, both the front side 46 and the back side 47 of the first body portion 43 are provided with at least two first protrusions 441. Along the second direction, the thicknesses of adjacent first protrusions 441 on the front side 46 of the first body portion 43 are different, and the thicknesses of adjacent first protrusions 441 on the back side 47 of the first body portion 43 are different. At the other end of the first body portion 43, both the front side 46 and the back side 47 of the first body portion 43 are provided with at least two second protrusions 451. Along the second direction, the thicknesses of adjacent second protrusions 451 on the front side 46 of the first body portion 43 are different, and the thicknesses of adjacent second protrusions 451 on the back side 47 of the first body portion 43 are different. This configuration allows the two ends of the first tie member 40 to better engage with the inner leaf wall panel 10 and the middle wall panel 20, respectively. This improves the gripping force of the first tie member 40 in the inner leaf wall panel 10 and the middle wall panel 20, thereby enhancing the ability of the inner leaf wall panel 10 and the middle wall panel 20 to jointly resist the lateral pressure during concrete pouring.

[0069] In some possible implementations, at least one first protrusion 441 is provided on the front side 46 or back side 47 of one end of the first body portion 43, and at least one second protrusion 451 is provided on the front side 46 or back side 47 of the other end of the first body portion 43.

[0070] Optionally, refer to Figure 6 and Figure 7 The first body portion 43 is flat and, along the second direction, its thickness is between 1 mm and 3 mm, including 1 mm and 3 mm, such as 1.8 mm, 2.2 mm, etc. In the direction from the front side 46 to the back side 47 of the first body portion 43 ( Figure 7 As shown in the C-direction, a concave surface 48 is formed in the central region of the first body portion 43, and the concave surface 48 protrudes from the back surface 47 of the first body portion 43. The central region of the first body portion 43 can be machined into a concave shape using, but is not limited to, a stamping process, which can effectively increase the strength of the first body portion 43 in the weak axis direction (…). Figure 7 The strength of the first tie member 40 (as shown in the Y direction) is such that under the action of external force, the first tie member 40 is not easily deformed in the weak axis direction, which plays a role in enhancing the out-of-plane stiffness of the first tie member 40, thereby improving the strength of the inner leaf wall panel 10 and the middle wall panel 20 after they are connected together by the first tie member 40.

[0071] In some possible implementations, the thickness of the concave surface 48 protruding from the back surface 47 of the first body portion 43 is between 1 mm and 3 mm, including 1 mm and 3 mm, such as 1.8 mm, 2.2 mm, etc. This is advantageous in increasing the strength of the first body portion 43 in the weak axis direction while reducing the thickness of the first body portion 43.

[0072] In some possible embodiments, a concave surface 48 is formed in the central region of the first body portion 43 in the direction from the back side 47 to the front side 46, and the concave surface 48 protrudes from the front side 46 of the first body portion 43. That is, the form in which the concave surface 48 is machined is the opposite of the above embodiment.

[0073] refer to Figure 5 Along the first direction ( Figure 5 As shown in the X direction, each first tie member 40 is perpendicularly connected to the inner leaf wall panel 10 and the middle wall panel 20 respectively; along the second direction ( Figure 5 (As shown in the Y direction), the first body portions 43 of adjacent first tie members 40 are arranged parallel and face to face. That is, the depth direction of the building wall 1 is parallel to the first body portion 43 and perpendicular to the weak axis direction of the first body portion 43. With the first tie members 40 arranged in this way, the first tie members 40 can be prevented from deforming during the assembly process of the building wall 1 when it is transported to the site.

[0074] If the first tie member 40 is perpendicularly connected to the inner leaf wall panel 10 and the middle wall panel 20 in such a way that the depth direction of the building wall 1 is perpendicular to the first body part 43 and parallel to the weak axis direction of the first body part 43, then the first tie member 40 will be prone to deformation during the assembly process of the building wall 1 on site, which will reduce the connection strength between the inner leaf wall panel 10 and the middle wall panel 20.

[0075] Optionally, refer to Figure 6 The bottom of the concave surface 48 is provided with at least two through holes 49. These two through holes 49 serve a positioning function. When the first tie member 40 is installed into the inner leaf wall panel 10 and the middle wall panel 20, appropriate tooling (described later) ensures that the first tie member 40 remains relatively perpendicular to the inner leaf wall panels 10 and the middle wall panel 20 at both ends, guaranteeing accurate insertion depth of the first tie member 40 into the inner leaf wall panels 10 and the middle wall panel 20. Because two points determine a straight line, the two holes help maintain the first tie member 40 relatively perpendicular to the wall panels at both ends, achieving precise positioning of the first tie member 40.

[0076] Optionally, the structure of the second tie member 41 is the same as that of the first tie member 40, and they can be combined. Figure 6 , Figure 7 Referring to the description of the first ties 40 above, the second ties 41 includes a second body portion extending along a first direction, optionally in the form of a strip; the second body portion has a front and a back side along a second direction perpendicular to the first direction; at one end of the second body portion, at least one first protrusion is provided on the front and back sides, i.e., one end of the second body portion is machined into a concave-convex shape, which is selected according to the actual engineering needs; at the other end of the second body portion, at least one second protrusion is provided on the front and back sides, i.e., the other end of the second body portion is machined into a concave-convex shape, but the number of second protrusions is not limited to this, and is selected according to the actual engineering needs.

[0077] In some possible implementations, at least one first protrusion is provided on the front or back side of one end of the second body portion, and at least one second protrusion is provided on the front or back side of the other end of the second body portion.

[0078] Optionally, the second body portion is flat, and its thickness along the second direction is between 1 mm and 3 mm, including 1 mm and 3 mm, such as 1.8 mm, 2.2 mm, etc. In the direction from the front to the back of the second body portion, a concave surface is formed in the central region of the second body portion, protruding from the back of the second body portion. The central region of the second body portion can be machined into a concave shape using, but not limited to, a stamping process. This effectively increases the strength of the second body portion in the weak axis direction. Under external force, the second tie member is less prone to deformation in the weak axis direction, thus enhancing the out-of-plane stiffness of the second tie member, thereby improving the strength of the outer leaf wall panel 50 and the central wall panel 20 after they are connected together by the second tie member 41.

[0079] In some possible implementations, the thickness of the concave surface protruding from the back surface 47 of the second body portion is between 1 mm and 3 mm, including 1 mm and 3 mm, such as 1.8 mm, 2.2 mm, etc.

[0080] In some possible implementations, a concave surface is formed in the central region of the second body portion in the direction from the back side to the front side, and the concave surface protrudes from the front side of the second body portion. That is, the form of forming the concave surface is the opposite of the above embodiment.

[0081] Along the first direction, each second tie member 41 is perpendicularly connected to the outer leaf wall panel 50 and the middle wall panel 20, respectively; along the second direction, the second body portions of adjacent second tie members 41 are parallel and face to face. That is, the depth direction of the building wall 1 is parallel to the second body portion and perpendicular to the weak axis direction of the second body portion. With the second tie members 41 arranged in this way, the second tie members 41 can be prevented from deforming during the assembly process of the building wall 1 on site.

[0082] If the second tie member 41 is perpendicularly connected to the outer leaf wall panel 50 and the middle wall panel 20 in such a way that the depth direction of the building wall 1 is perpendicular to the second body and parallel to the weak axis direction of the second body, then the second tie member 41 will be prone to deformation during the assembly process of the building wall 1 on site, which will reduce the connection strength between the outer leaf wall panel 50 and the middle wall panel 20.

[0083] Optionally, the bottom of the concave surface is provided with at least two through holes. These at least two through holes serve a positioning function. When the second tie member 41 is installed into the outer leaf wall panel 50 and the middle wall panel 20, appropriate tooling (described later) ensures that the second tie member 41 remains relatively perpendicular to the outer leaf wall panels 50 and the middle wall panel 20 at both ends, and guarantees the precise insertion depth of the second tie member 41 into the outer leaf wall panel 50 and the middle wall panel 20. Because two points determine a straight line, the two holes help the second tie member 41 maintain a relatively perpendicular state with the wall panels at both ends, thus achieving precise positioning of the second tie member 41.

[0084] Optionally, continue to refer to Figure 2 and Figure 3 The first portion 11 of the inner leaf wall panel 10 is parallel to the first portion 21 of the middle wall panel 20. Multiple first connecting members 40 between the first portion 11 of the inner leaf wall panel 10 and the first portion 21 of the middle wall panel 20 are parallel and equally spaced. The second portion 12 of the inner leaf wall panel 10 is parallel to the second portion 22 of the middle wall panel 20. Multiple first connecting members 40 between the second portion 12 of the inner leaf wall panel 10 and the second portion 22 of the middle wall panel 20 are parallel and equally spaced. The first portion 51 of the outer leaf wall panel 50 is parallel to the first portion 21 of the middle wall panel 20. Multiple second connecting members 41 between the first portion 51 of the outer leaf wall panel 50 and the first portion 21 of the middle wall panel 20 are parallel and equally spaced. The second portion 52 of the outer leaf wall panel 50 is parallel to the second portion 22 of the middle wall panel 20. Multiple second connecting members 41 between the second portion 52 of the outer leaf wall panel 50 and the second portion 22 of the middle wall panel 20 are parallel and equally spaced.

[0085] Optionally, the spacing between adjacent first tie members 40 is smaller than the spacing between adjacent second tie members 41. With this arrangement, the connection strength between the inner leaf wall panel 10 and the middle wall panel 20 is guaranteed, while reducing the number of second tie members 41 between the middle wall panel 20 and the outer leaf wall panel 50. In some possible embodiments, when one end of a second tie member 41 is located within the first cavity 10a, the spacing between adjacent second tie members 41 can be further increased to reduce the number of second tie members 41.

[0086] Optionally, refer to Figures 1 to 3The first part 11 of the inner leaf wall panel 10 is straight, and the second part 12 of the inner leaf wall panel 10 is straight. The first part 11 of the inner leaf wall panel 10 is longer than the second part 12 of the inner leaf wall panel 10. That is, the inner leaf wall panel 10 is formed by splicing a longer straight wall segment and a shorter straight wall segment at the end. Optionally, the inner leaf wall panel 10 is "L-shaped", that is, the first part 11 of the inner leaf wall panel 10 is perpendicular to the second part 12 of the inner leaf wall panel 10. The first part 21 of the middle wall panel 20 is straight, and the second part 22 of the middle wall panel 20 is straight. The first part 21 of the middle wall panel 20 is longer than the second part 22 of the middle wall panel 20. That is, the middle wall panel 20 is formed by splicing a longer straight wall segment and a shorter straight wall segment at the end. Optionally, the middle wall panel 20 is "L-shaped", that is, the first part 21 of the middle wall panel 20 is perpendicular to the second part 22 of the middle wall panel 20. The first part 51 of the outer leaf wall panel 50 is straight, and the second part 52 of the outer leaf wall panel 50 is straight. The first part 51 of the outer leaf wall panel 50 is longer than the second part 52 of the outer leaf wall panel 50. That is, the outer leaf wall panel 50 is formed by splicing a longer straight wall section and a shorter straight wall section at the end. Optionally, the outer leaf wall panel 50 is "L-shaped", that is, the first part 51 of the outer leaf wall panel 50 is perpendicular to the second part 52 of the middle wall panel 20.

[0087] In some possible implementations, the longer first portion 11 of the inner leaf wall panel 10 is integrally formed, the longer first portion 21 of the middle wall panel 20 is integrally formed, and the longer first portion 51 of the outer leaf wall panel 50 is integrally formed.

[0088] In some possible implementations, refer to Figure 8 and Figure 9The first portion 11 of the inner leaf wall panel 10 is formed by splicing at least two first sub-parts 11a, one of which is set at a first angle to the second portion 12 of the inner leaf wall panel 10. That is, the longer first portion 11 of the inner leaf wall panel 10 is formed by splicing multiple shorter segments, which is beneficial for processing and installation. The first portion 21 of the middle wall panel 20 is formed by splicing at least two second sub-parts 21a, one of which is set at a second angle to the second portion 22 of the middle wall panel 20. That is, the longer first portion 21 of the middle wall panel 20 is formed by splicing multiple shorter segments, which is beneficial for processing and installation. The first portion 51 of the outer leaf wall panel 50 is formed by splicing at least two third sub-parts 51a, one of which is set at a third angle to the second portion 52 of the outer leaf wall panel 50. That is, the longer first portion 51 of the outer leaf wall panel 50 is formed by splicing multiple shorter segments, which is beneficial for processing and installation. The first part of the thermal insulation wall panel 60 is formed by splicing together at least two fourth sub-parts 61a, one of which is set at a fourth angle to the second part 62 of the thermal insulation wall panel 60. That is, the first part of the longer thermal insulation wall panel 60 is formed by splicing together multiple shorter parts, which is beneficial for processing and installation.

[0089] refer to Figure 9 An opening 10b extending along the depth direction of the building wall 1 and communicating with the first cavity 10a is formed between the two first sub-parts 11a. The opening 10b serves as an operating surface, and a sealing template 11b covers the opening 10b.

[0090] Optionally, a corner cavity (similar to an "L-shaped" cavity) is formed by one of the first sub-parts 11a connected to the second part 12 of the inner leaf wall panel 10, the second part 12 of the inner leaf wall panel 10, one of the second sub-parts 21a connected to the second part 22 of the middle wall panel 20, and the second part 22 of the middle wall panel 20. The remaining first sub-parts 11a of the inner leaf wall panel 10 and the remaining second sub-parts 21a of the middle wall panel 20 form a straight cavity. That is, the first sub-parts 11a of the inner leaf wall panel 10 are parallel to the second sub-parts 21a of the middle wall panel 20, the second part 12 of the inner leaf wall panel 10 is perpendicular to the first sub-parts 11a, and the second part 22 of the middle wall panel 20 is perpendicular to the second sub-parts 21a.

[0091] The wall structure reinforcement 30 includes: a straight section concealed column reinforcement cage 31, a straight section wall body reinforcement cage 32, connecting reinforcement bars 33, and a corner concealed column reinforcement cage 34; the corner cavity is provided with the corner concealed column reinforcement cage 34, the portion of the straight section cavity adjacent to the corner cavity is provided with the straight section wall body reinforcement cage 32, and the remaining portion of the straight section cavity is provided with the straight section concealed column reinforcement cage 31. The straight section wall body reinforcement cage 32 and the corner concealed column reinforcement cage 34 are connected by connecting reinforcement bars 33. This provides a novel prefabricated building construction component, which facilitates the installation of the wall structure reinforcement 30 within the building wall 1.

[0092] Among them, reference Figure 8 Before the first portion 11 of the inner leaf wall panel 10 and the first portion 21 of the middle wall panel 20 are spliced ​​together, the connecting steel bar 33 is located in the straight section cavity; Reference Figure 9 After the first part 11 of the inner wall panel 10 and the first part 21 of the middle wall panel 20 are spliced ​​together, the connecting steel bar 33 is extended from the straight section cavity into the corner cavity through the operating surface, thereby connecting the straight section wall steel reinforcement skeleton 32 and the corner hidden column steel reinforcement skeleton 34. That is, the connecting steel bar 33 is initially retracted in the straight section cavity, and is extended into the corner cavity to be spliced ​​when the walls are spliced. Through the operating surface, the connecting steel bar 33 in the straight section cavity can be extended from the straight section cavity into the corner cavity to be spliced, completing the steel reinforcement connection of the two wall panels. Then, the operating surface is sealed with the sealing template 11b.

[0093] This also means that the first cavity 10a formed by the inner wall panel 10 and the middle wall panel 20 includes an L-shaped cavity formed by splicing and at least two straight cavity sections. The first and last L-shaped cavities and straight cavity sections of the first cavity 10a contain integrated hidden column reinforcement, while the middle straight cavity section of the first cavity 10a contains integrated wall reinforcement. This helps reduce the installation and processing difficulty of the building wall 1 on the construction site.

[0094] As described above, the inner leaf wall panel 10, the middle wall panel 20, the insulation wall panel 60, and the outer leaf wall panel 50 are not integrally formed, but rather spliced ​​together. In some possible embodiments, one of the inner leaf wall panel 10, the middle wall panel 20, the insulation wall panel 60, and the outer leaf wall panel 50 may be spliced ​​together, while the others are integrally formed; or two of the inner leaf wall panel 10, the middle wall panel 20, the insulation wall panel 60, and the outer leaf wall panel 50 may be spliced ​​together, while the others are integrally formed; or three of the inner leaf wall panel 10, the middle wall panel 20, the insulation wall panel 60, and the outer leaf wall panel 50 may be spliced ​​together, while the others are integrally formed.

[0095] Optionally, refer to Figure 3The first part 21 and the second part 22 of the middle wall panel 20 are connected at the joint by a third tie member 42. The structure of the third tie member 42 is the same as that of the first tie member 40, as detailed in the previous description of the structure of the first tie member 40, and will not be repeated here. The connection between the first part 21 and the second part 22 of the middle wall panel 20 by the third tie member 42 can further enhance the strength of the middle wall panel 20, which is beneficial to resisting the lateral pressure generated when concrete is poured in the first cavity 10a, and can better support the insulation wall panel 60, thereby further improving the overall strength formed by the structural functional area and the insulation functional area.

[0096] As previously described, the building wall 1 of this application includes an inner leaf wall panel 10, a middle wall panel 20, an insulation wall panel 60, and an outer leaf wall panel 50. In some possible embodiments, the building wall may include an inner leaf wall panel 10 (first wall panel) and a middle wall panel 20 (second wall panel), but exclude the insulation wall panel 60 and the outer leaf wall panel 50. The middle wall panel 20 and the inner leaf wall panel 10 are connected by a plurality of first tie members 40, which are spaced apart from the inner leaf wall panel 10. One end of each first tie member 40 engages with the inner leaf wall panel 10, and the other end engages with the middle wall panel 20. Along the first direction, each first tie member 40 is perpendicularly connected to the inner leaf wall panel 10 and the middle wall panel 20, respectively; along the second direction, the first body portions 43 of adjacent first tie members 40 are parallel and face-to-face.

[0097] In some possible embodiments, the first angle between the first portion 11 and the second portion 12 of the inner leaf wall panel 10 is 0°, and the second angle between the first portion 21 and the second portion 22 of the middle wall panel 20 is 0°. That is, the first tie member 40 of this application can be used not only on L-shaped building walls, but also on I-shaped building walls. In some possible embodiments, the first tie member 40 can also be used on building walls of other shapes, such as T-shaped building walls.

[0098] Optionally, the hidden column reinforcement in the first cavity 10a can move relative to the building wall 1 along the depth direction, so that the hidden column reinforcement has a certain amount of room to move. If the hidden column reinforcement collides during hoisting, the colliding hidden column reinforcement can be easily corrected.

[0099] refer to Figure 10 and Figure 11As shown, each of the first body parts 43 has at least one collar 431 on its front side 46 and / or back side 47. The collar 431 is perpendicular to the first body part 43. The hidden column reinforcement is fitted into the collar 431 along the depth direction and can move relative to the collar 431 along the depth direction. That is, the collar 431 positions the hidden column reinforcement to prevent it from tilting and affecting the casting quality, while not affecting the movement of the hidden column reinforcement in the depth direction. The first tie member 40 can also replace the tie rod or single-limb hoop of the frame column wall 1 to restrict the deformation of the hidden column reinforcement.

[0100] In this embodiment, two collars 431 are provided on the back side 47 of the first body part 43, and the number of collars 431 is not limited to this. Alternatively, the collars 431 can also be provided on the front side 46 of the first body part 43. The position and number of collars 431 are matched with the arrangement of the hidden column reinforcement.

[0101] Optionally, the concealed column reinforcement located within the collar 431 can move a set distance horizontally. This set distance is not limited and can be selected according to construction requirements, such as 1mm, 2mm, or 3mm. Therefore, the concealed column reinforcement has a certain amount of room to move in both the depth and horizontal directions, facilitating collision checks and corrections.

[0102] In addition, to ensure that the first tie member 40 remains perpendicular to the wall panels at both ends, refer to Figures 12 to 16 This application also provides a tie-fit fastener 7, including: an mounting portion 70, extending along the length direction ( Figures 12 to 14 Extending in the direction of E, the mounting part 70 has a mounting surface 71 for fitting with the first tie member 40. The specific shape of the mounting surface 71 is not limited, as long as it can fit with the first tie member 40. Optionally, the mounting surface 71 is a plane that fits with the first body part 43 of the first tie member 40. The specific shape of the mounting part 70 is not limited, as long as it has a mounting surface 71 that can fit with the first tie member 40. Optionally, the mounting part 70 is a rectangular tube. In some possible embodiments, the mounting part 70 is a polygonal tube, a round tube, etc.

[0103] Multiple sets of first positioning portions 72 are spaced apart along the length direction on the mounting surface 71, each set of first positioning portions 72 including portions along the width direction ( Figures 13 to 15 At least two protrusions 721 are spaced apart (as shown in the F direction), all protrusions 721 are on the same straight line, and the angle between the line connecting all protrusions 721 and the length direction is a set angle. Each protrusion 721 is used to pass through the through hole 49 on the first tie member 40 when the first tie member 40 is attached to the mounting surface 71 in the width direction. That is, a set of first positioning parts 72 corresponds to one first tie member 40 and is used to position the first tie member 40.

[0104] The fastening fixture 7 also includes a second positioning part 73, which includes a retaining strip 732 and at least two engaging parts 731. The at least two engaging parts 731 are spaced apart along the length direction on the mounting surface 71. The retaining strip 732 is used to, after the first fastening member 40 is fitted onto the protrusion 721 through the through hole 49 and abuts against the mounting surface 71, move along the thickness direction (…). Figure 12 , Figure 15 and Figure 16 (As shown in the G direction) respectively abuts against the first tie member 40 and the snap-fit ​​part 731, and the movement of the first tie member 40 in the thickness direction is restricted so as to install the first tie member 40 on the fixing fixture 7; wherein, the thickness direction, the length direction and the width direction are perpendicular to each other.

[0105] Essentially, all the first tie members 40 to be installed are attached to the mounting surface 71 along the width direction, with the extension direction (first direction) of the first tie members 40 consistent with the width direction. After the multiple through holes 49 of all the first tie members 40 are respectively fitted onto the corresponding protrusions 721, the retaining strip 732 is placed inside the retaining part 731, so that the retaining strip 732, the first tie member 40, and the retaining part 731 abut against each other in the thickness direction. There can be multiple retaining strips 732. The number of retaining strips 732 is selected according to the gap between the retaining part 731 and the first tie member 40 in the thickness direction, so as to press the first tie member 40 tightly. Thus, the movement of the first tie member 40 in the thickness direction is restricted, and the first tie member 40 will not come out of the protrusion 721, thereby realizing the installation of the first tie member 40 on the fixing fixture 7. And all the first tie members 40 are perpendicular to the length direction of the mounting part 70.

[0106] Therefore, when the first tie member 40 is perpendicularly connected to the wall panels at both ends, as long as the fixing fixture 7 extends along the depth direction of the building wall 1, that is, the length direction of the fixing fixture 7 is consistent with the depth direction of the building wall 1, all the first tie members 40 on the fixing fixture 7 can be perpendicular to the depth direction of the building wall 1. Correspondingly, all the first tie members 40 are perpendicular to the inner leaf wall panel 10 and the middle wall panel 20 extending along the depth direction.

[0107] Therefore, the use of the fixing fixture 7 of this application can ensure that the first tie member 40 and the wall panels at both ends are kept relatively perpendicular, so that the tie force between the first tie member 40 and the wall panels at both ends is guaranteed. In this way, under the action of the first tie member 40, the wall panels at both ends are pulled together, which can resist the lateral pressure generated when concrete is poured in the cavity.

[0108] Optionally, the angle between the line connecting all the protrusions 721 and the length direction is set to 90°, meaning that all the protrusions 721 extend continuously along the width direction, and the line connecting the multiple through holes 49 on the first tie member 40 also extends along the width direction. The specific value of the angle between the line connecting all the protrusions 721 and the length direction is not limited, but the following conditions must be met: the angle between the line connecting all the through holes 49 on the first tie member 40 and the first direction is consistent with the aforementioned set angle; the first tie member 40 is attached to the mounting surface 71 along the width direction; and the through holes 49 on the first tie member 40 are fitted onto the corresponding protrusions 721. For example, the angle between the line connecting all the protrusions 721 and the length direction is set to 10°, the angle between the line connecting all the through holes 49 on the first tie member 40 and the first direction is also 10°, the first tie member 40 is attached to the mounting surface 71 along the width direction, and the through holes 49 on the first tie member 40 are fitted onto the corresponding protrusions 721.

[0109] Optionally, multiple sets of first positioning parts 72 are equally spaced along the length direction on the mounting surface 71, so that all the first tie members 40 are also equally spaced along the length direction on the mounting surface 71, which is beneficial to the balanced distribution of the tie force between the multiple first tie members 40 and the wall panels at both ends on the building wall 1.

[0110] Optionally, at least two snap-fit ​​portions 731 are spaced apart along the length direction and located on the same straight line. Optionally, the line connecting all the snap-fit ​​portions 731 extends along the length direction. Correspondingly, the locking strip 732 also extends along the length direction. In some possible embodiments, all the snap-fit ​​portions 731 may not be located on the same straight line, as long as the first tie member 40 is pressed onto the mounting surface 71 by the locking strip 732.

[0111] Optionally, refer to Figure 13 Each snap-fit ​​portion 731 forms a notch 733 with the mounting surface 71, allowing the snap-fit ​​strip 732 to snap into the notch 733. After all the first tie members 40 are fitted onto the protrusions 721 on the mounting surface 71, the snap-fit ​​strip 732 is inserted into the notch 733 between the snap-fit ​​portion 731 and the mounting surface 71, facilitating the installation of the first tie members 40 onto the fixing fixture 7. Simultaneously, after all the first tie members 40 are perpendicularly connected to the wall panels at both ends, the snap-fit ​​strip 732 is removed from the notch 733, allowing easy separation of the protrusions 721 of the mounting portion 70 from the through holes 49 of the first tie members 40, and facilitating the removal of the fixing fixture 7 from the first tie members 40.

[0112] Optionally, each notch 733 has the same opening direction. This also facilitates inserting the locking strip 732 into the notch 733 between the locking portion 731 and the mounting surface 71.

[0113] Optionally, refer to Figure 15Each snap-fit ​​portion 731 is Z-shaped. Each snap-fit ​​portion 731 includes a first part 7311, a second part 7312, and a third part 7313 connected in sequence; wherein, the first part 7311 is attached to and fixed to the mounting surface 71, and can be fixed to the mounting surface 71 by bolts; the second part 7312 is perpendicular to the mounting surface 71; and the third part 7313 is parallel to the mounting surface 71 and is spaced apart in the thickness direction to form notches 733. When fixing the first tie member 40, the snap strip 732 is inserted into the notch 733 and abuts against the first tie member 40 and the third part 7313 respectively to press the first tie member 40 tightly.

[0114] Those skilled in the art will understand that the shape of the snap-fit ​​portion 731 is not limited to this, and it is possible to insert a snap-fit ​​strip 732 between the snap-fit ​​portion 731 and the first tie member 40 to press the first tie member 40 tightly.

[0115] refer to Figure 14 and Figure 16 This application also provides a tie-fit assembly 8, including: a tie-fit fixture 7 of any of the above embodiments; a plurality of first tie-fits 40 of the above embodiments, each first tie-fit 40 including a first body portion 43, the first body portion 43 extending along a first direction, the first body portion 43 having at least two through holes 49 spaced apart along the first direction, the through holes 49 of the tie-fit being sleeved on the protrusion 721, the first body portion 43 being in contact with the mounting surface 71 along the width direction, the first direction being consistent with the width direction; a retaining strip 732 abutting against the first body portion 43 and the retaining portion 731 along the thickness direction, the movement of the tie-fit in the thickness direction being restricted.

[0116] This application also provides a building wall 1, including the tie member fixing assembly 8 of any of the above embodiments, the length direction of the mounting part 70 is consistent with the depth direction of the building wall 1, one end of each first tie member 40 is in concave-convex engagement with the inner leaf wall panel 10, and the other end is in concave-convex engagement with the middle wall panel 20.

[0117] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A tie member for a precast cavity wall construction, characterised in that, Includes: a first body portion extending along a first direction, having one end and another end, and extending along a second direction perpendicular to the first direction, the first body portion having a front side and a back side; At one end of the first body portion, at least one first protrusion is provided on the front and / or back of the first body portion; At the other end of the first body portion, at least one second protrusion is provided on the front and / or back of the first body portion; At one end of the first body portion, at least two first protrusions are provided on both the front and back sides of the first body portion. Along the second direction, the thicknesses of adjacent first protrusions on the front side of the first body portion are different, and the thicknesses of adjacent first protrusions on the back side of the first body portion are different. At the other end of the first body portion, at least two second protrusions are provided on both the front and back sides of the first body portion. Along the second direction, the thicknesses of adjacent second protrusions on the front side of the first body portion are different, and the thicknesses of adjacent second protrusions on the back side of the first body portion are different. In the direction from the front to the back of the first body portion, a concave surface is formed in the middle region of the first body portion, and the concave surface protrudes from the back of the first body portion; or, in the direction from the back to the front of the first body portion, a concave surface is formed in the middle region of the first body portion, and the concave surface protrudes from the front of the first body portion. The thickness of the concave surface protruding from the first body portion is between 1 mm and 3 mm. The bottom of the concave surface is provided with at least two through holes. The tie member is used to install the first wall panel and the second wall panel into the building wall. The at least two through holes are used to keep the tie member relatively perpendicular to the first wall panel and the second wall panel at both ends by means of tooling, and to ensure that the tie member is inserted into the first wall panel and the second wall panel with accurate depth. The tooling includes an installation part with an installation surface for fitting with the tie member. Multiple sets of first positioning parts are spaced apart along the length direction on the installation surface. Each set of first positioning parts includes at least two protrusions spaced apart along the width direction. Each protrusion is used to pass through a through hole on the tie member when the first tie member fits against the installation surface along the width direction.

2. The tie of claim 1 wherein, The first body part is flat.

3. The tie member as described in claim 2, characterized in that, The first body portion is elongated along the second direction, and the thickness of the first body portion is between 1 mm and 3 mm. The thickness of the concave surface protruding from the back or front of the first body portion is between 1 mm and 3 mm.

4. The tie member as described in claim 1, characterized in that, The first body portion has at least one collar on its front and / or back sides. The collar is perpendicular to the first body portion and is used to fit a hidden column steel bar extending along the depth direction. The hidden column steel bar fitted in the collar can move relative to the collar along the depth direction.

5. The tie member as described in claim 4, characterized in that, The hidden column steel bar located inside the collar can move a set distance in the horizontal direction, which is parallel to the first direction.

6. A building wall, characterized in that, include: The tie member according to any one of claims 1 to 5; First wall panel; The second wall panel is connected to the first wall panel by a plurality of the aforementioned tie members and is spaced apart from the first wall panel; One end of each of the tie members is in a concave-convex fit with the first wall panel, and the other end is in a concave-convex fit with the second wall panel.

7. The building wall as described in claim 6, characterized in that, Along the first direction, each of the tie members is perpendicularly connected to the first wall panel and the second wall panel respectively; along the second direction, the first body portions of adjacent tie members are arranged parallel to each other and face to face.

8. The building wall as described in claim 6, characterized in that, The first wall panel is an inner leaf wall panel, and the second wall panel is a middle wall panel. The middle wall panel is connected to the inner leaf wall panel through multiple tie members and forms a first cavity with the inner leaf wall panel. The first cavity is provided with wall structure steel bars.

9. The building wall as described in claim 8, characterized in that, The inner leaf wall panel includes a first part and a second part arranged at a first angle, and the middle wall panel includes a first part and a second part arranged at a second angle; The first portion of the inner leaf wall panel is flat, the second portion of the inner leaf wall panel is flat, the first portion of the inner leaf wall panel is longer than the second portion of the inner leaf wall panel, the first portion of the inner leaf wall panel is formed by splicing at least two first sub-parts, one of which is set at the first angle with the second portion of the inner leaf wall panel; and / or The first part of the central wall panel is flat, the second part of the central wall panel is flat, the first part of the central wall panel is longer than the second part of the central wall panel, the first part of the central wall panel is formed by splicing together at least two second sub-parts, one of which is set at the second angle with the second part of the central wall panel.

10. The building wall as described in claim 9, characterized in that, An opening is formed between the two first sub-parts, extending along the depth direction of the building wall and communicating with the first cavity. The opening serves as an operating surface, and a sealing template covers the opening.

11. The building wall as described in claim 10, characterized in that, A first sub-part connected to the second part of the inner leaf wall panel, the second part of the inner leaf wall panel, a second sub-part connected to the second part of the middle wall panel, and the second part of the middle wall panel form a corner cavity; The remaining first sub-section of the inner leaf wall panel and the remaining second sub-section of the middle wall panel form a straight cavity; The wall structure reinforcement includes: straight section concealed column reinforcement cage, straight section wall reinforcement cage, connecting reinforcement and corner concealed column reinforcement cage; The corner cavity is provided with the corner concealed column steel reinforcement cage, the portion of the straight section cavity adjacent to the corner cavity is provided with the straight section wall steel reinforcement cage, and the remaining portion of the straight section cavity is provided with the straight section concealed column steel reinforcement cage. The straight section wall steel reinforcement cage and the corner concealed column steel reinforcement cage are connected by connecting steel bars; wherein... Before the first portion of the inner leaf wall panel and the first portion of the middle wall panel are spliced ​​together, the connecting steel bars are located in the straight section cavity; After the first part of the inner leaf wall panel and the first part of the middle wall panel are spliced ​​together, the connecting steel bar is inserted from the straight section cavity into the corner cavity through the operating surface, thereby realizing the connection between the straight section wall steel bar skeleton and the corner hidden column steel bar skeleton.

12. The building wall as described in claim 9, characterized in that, The first angle is 90°, and the second angle is 90°.

Images