Inclined-strut-free shear wall supporting structure with built-in core filling steel pipe

Abstract

The invention discloses a diagonal bracing-free shear wall supporting structure with a centrally-mounted core-filling steel pipe, which comprises a template assembly, a first supporting assembly, a second supporting assembly, a first pre-embedded assembly, a second pre-embedded assembly and a centrally-mounted assembly, and is characterized in that the core-filling steel pipe in the centrally-mounted assembly is pre-filled to form a steel pipe concrete structure; the rigidity of the core grouting steel pipe is greatly enhanced, after the position where the second shear wall is located and concrete pouring is completed through the current supporting structure, supplementary grouting does not need to be conducted on the second shear wall, and the field construction efficiency is improved. And under the condition that no horizontal structural component provides support in the supporting structure of the second shear wall, core grouting steel pipes are pre-buried. And for side wall construction at the position with a floor, outer side inclined strut construction can still be conducted according to a traditional side wall construction technology, and scheme selection is flexible. And by adopting a pulling mode of the first hook bolt and the second hook bolt, reliable force transmission can be realized, the efficiency is improved, and the economical efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, in particular to a bracing-free shear wall support structure with a centrally placed cast-core steel pipe. Background Art

[0002] For side wall shear wall components such as garbage pools in waste incineration power plants, the inter-layer height is relatively large, and layered pouring is usually required. For the formwork support of the middle shear wall, due to the lack of support from horizontal structural components, according to traditional practices, the outer ground scaffolding (operating frame) extends horizontal bars to the wall side to support the weight of the formwork and primary and secondary keels. This approach is likely to cause overload of the outer scaffolding, thereby increasing the risk of collapse and rollover. In addition, for the middle shear wall, its lateral support is difficult to erect, and there are usually two fixed positions for the lower end of the support rod. One is to fix it to the outer scaffolding uprights through rotating fasteners, which will further increase the rollover risk of the outer scaffolding. Another approach is to set embedded parts in the lower wall to install the lower support tripod. When the pouring height is large, since the diagonal bracing angle is usually less than 60°, a longer cantilever beam is required. Taking a pouring height of 3.5 meters as an example, the length of the upper beam of the tripod will reach 2 meters. The lateral stability is not easy to ensure, and the workload of installing and disassembling the support frame is large.

[0003] The existing technical solutions have complex stress on the outer scaffolding, the risks of collapse and rollover are difficult to control, and the construction efficiency is low. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a shear wall support structure without diagonal bracing and a centrally placed cast-in-place steel pipe, so as to avoid the complex stress of the outer scaffolding in the traditional method, reduce the risk of collapse and rollover, and improve construction efficiency.

[0005] In order to achieve the above-mentioned technical objectives, the present invention provides a brace-free shear wall support structure with a centrally placed cast-core steel pipe, which is suitable for a first shear wall and a second shear wall. The first shear wall and the second shear wall are arranged in sequence from bottom to top. The first shear wall is configured as a shear wall structure that has been cast, and the second shear wall is configured as a shear wall structure that has not yet been cast. There is an installation area above the first shear wall, and the support structure includes a formwork assembly, a first support assembly, a first embedded assembly, a second support assembly, a second embedded assembly and a central assembly. The formwork assembly includes a first formwork and a second formwork, the first formwork has a first connecting section at the bottom, the second formwork has a second connecting section at the bottom, the first connecting section and the second connecting section are arranged opposite to each other in the installation area, a casting chamber of the second shear wall is formed between the first formwork and the second formwork, the first connecting section is fitted with one side outer surface of the first shear wall, and the second connecting section is fitted with the other side outer surface of the first shear wall; the first support assembly is arranged in the installation area, the first support assembly includes a first beam and a second beam, the first beam is arranged at the lower edge of the first connecting section, the first beam is used to support the first formwork, the second beam is arranged at the lower edge of the second connecting section, and the second beam is used to support the second formwork; The first embedded component includes a first embedded bolt and a second embedded bolt, the first embedded bolt passes through the installation area of ​​the first shear wall, and the first embedded bolt is sequentially connected to the first beam and the second beam, the second embedded bolt passes through the installation area of ​​the first shear wall, and the second embedded bolt is sequentially connected to the first connecting section and the second connecting section; the second supporting component includes a third beam, a fourth beam, a first longitudinal beam and a second longitudinal beam, the third beam and the first longitudinal beam are cross-shaped and distributed on the outside of the first template, and the fourth beam and the second longitudinal beam are cross-shaped and distributed on the outside of the second template; the second embedded component includes a third embedded bolt and a fourth embedded bolt, the third embedded bolt It runs through the casting chamber and connects the third beam, the first formwork, the second formwork and the fourth beam in sequence, the fourth embedded bolt runs through the casting chamber and connects the third beam and the fourth beam in sequence; the central component includes a core-casting steel pipe, a first hook bolt and a second hook bolt, the core-casting steel pipe has a first embedded section and a first supporting section, the first embedded section is arranged in the first shear wall, the first supporting section is arranged in the casting chamber, the first supporting section is connected to the third beam through the first hook bolt, and the first supporting section is also connected to the fourth beam through the second hook bolt, the core-casting steel pipe is configured to cast the core before casting the second shear wall and embed the first embedded section in the first shear wall along the vertical direction.

[0006] By adopting the above-mentioned technical scheme, compared with the prior art, the present invention has the following beneficial effects: by using the centrally placed cast-in-place steel pipe, the use of traditional diagonal braces is avoided, the construction process is simplified, the construction time and labor requirements are reduced, and the construction efficiency is improved; the centrally placed cast-in-place steel pipe provides additional supporting force, thereby enhancing the structural stability of the second shear wall during the manufacturing process and after the manufacturing process; by using the formwork assembly, the first embedded assembly, the second embedded assembly, the first support assembly and the second support assembly, the stability of the first formwork and the second formwork during the pouring process is ensured, the construction safety risk is reduced, and the construction safety is ensured; the overall production efficiency is improved, and the economy is good; and an efficient, stable and economical shear wall construction solution structure is provided.

[0007] In some embodiments, the first support assembly further includes a fifth crossbeam and a sixth crossbeam; the fifth crossbeam is disposed in the first connecting section, and the second embedded bolt is connected to the first connecting section through the fifth crossbeam; the sixth crossbeam is disposed in the second connecting section, and the second embedded bolt is connected to the second connecting section through the sixth crossbeam; The first embedded component also includes a first fastener and a second fastener; the first fastener is fastened at the connection between the fifth beam and the second embedded bolt; the second fastener is fastened at the connection between the sixth beam and the second embedded bolt.

[0008] In some embodiments, part of the first longitudinal beam is cross-arranged with the fifth transverse beam, and the first longitudinal beam is overlapped with the first transverse beam; part of the second longitudinal beam is cross-arranged with the sixth transverse beam, and the second longitudinal beam is overlapped with the second transverse beam.

[0009] In some embodiments, the third cross beam extends in the horizontal direction, and the fourth cross beam is symmetrically arranged with the third cross beam; the first longitudinal beam extends in the vertical direction, and the second longitudinal beam is symmetrically arranged with the first longitudinal beam.

[0010] In some embodiments, the second embedded component also includes a third fastener and a fourth fastener; the third fastener is fastened at the connection between the fourth embedded bolt and the third beam; the fourth fastener is fastened at the connection between the fourth embedded bolt and the fourth beam.

[0011] In some embodiments, the center component also includes a socket set, which includes a plurality of sockets, and the plurality of sockets are distributed in the first support section at intervals along the vertical direction. Each socket is provided with a first connecting hole and a second connecting hole, and the first connecting hole and the second connecting hole are arranged opposite to each other; the first hook head bolt is connected to the first support section through the first connecting hole, and the second hook head bolt is connected to the first support section through the second connecting hole.

[0012] In some embodiments, the length of the first embedded segment is not less than 500 mm.

[0013] In some embodiments, the first cross beam and / or the second cross beam are made of square steel pipes.

[0014] In some embodiments, there are multiple first embedded components, and the multiple first embedded components are spaced apart along the horizontal direction; there are multiple third crossbeams, and the multiple third crossbeams are spaced apart along the vertical direction on the first template; there are multiple fourth crossbeams, and the multiple fourth crossbeams are spaced apart along the vertical direction on the second template; there are multiple first longitudinal beams, and the multiple first longitudinal beams are spaced apart along the horizontal direction on the first template; there are multiple second longitudinal beams, and the multiple second longitudinal beams are spaced apart along the horizontal direction on the second template; there are multiple center components, and the multiple center components are spaced apart along the horizontal direction.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Different from the prior art, the above technical scheme includes a formwork assembly, a first support assembly, a second support assembly, a first embedded assembly, a second embedded assembly and a middle assembly. The middle assembly solves the problems of vertical support and lateral stability in the existing formwork system, especially when the height of the formwork assembly is large, it is more difficult to adopt the lateral support scheme. The technical scheme pre-fills the core steel pipe in the middle assembly to form a steel tube concrete structure, which greatly enhances the rigidity of the core steel pipe itself. After the second shear wall is located through the current support structure and concrete pouring, it is no longer necessary to supplement the grouting of the second shear wall, thereby improving the on-site construction efficiency. In the case where there is no horizontal structural member to provide support in the supporting structure of the second shear wall, the core steel pipe can be pre-buried. For the side wall construction where there is a floor slab, the outer diagonal bracing structure can still be constructed according to the traditional side wall construction process, and the scheme selection is flexible. The method of using the first embedded bolt and the first support assembly to support the formwork assembly can bear the dead weight of the first formwork, the second formwork and the second support assembly, and the on-site construction operation is convenient and the force transmission path is simple. The use of the first hook head bolt and the second hook head bolt as a tie-in method can achieve reliable force transmission, improve efficiency and increase economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the first schematic diagram of the shear wall support structure; Figure 2 is the second schematic diagram of the shear wall support structure; Figure 3 It is the third schematic diagram of the shear wall support structure.

[0018] Reference numerals: 1. The first shear wall; 2. Template components; 21. First template; 22. Second template; 3. A first supporting assembly; 31. First beam; 32. Second beam; 33. Fifth beam; 34. Sixth beam; 4. The first embedded component; 41. The first embedded bolt; 42. The second embedded bolt; 43. First fastener; 44. Second fastener; 5. A second supporting assembly; 51. The third beam; 52. Fourth beam; 53. First longitudinal beam; 54. Second longitudinal beam; 6. The second embedded component; 61. The third embedded bolt; 62. The fourth embedded bolt; 63. Third fastener; 64. Fourth fastener; 7. Center assembly; 71. Core-filled steel pipe; 711, the first embedded section; 712, first support section; 72. First hook bolt; 73. Second hook bolt; 74. Socket plate; 741, first connecting hole; 742, second connecting hole; 8. Installation area. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 , Figure 2 and Figure 3 This embodiment provides a shear wall support structure without diagonal bracing and a centrally placed cast-in-place steel pipe 71, which can improve construction efficiency, reduce construction costs, and ensure construction safety.

[0021] Specifically, the present embodiment provides a brace-free shear wall support structure with a centrally placed cast-core steel pipe 71, which is applicable to a first shear wall 1 and a second shear wall. The first shear wall 1 and the second shear wall are arranged in sequence from bottom to top. The first shear wall 1 is configured as a shear wall structure that has been cast, and the second shear wall is configured as a shear wall structure that has not been cast. The first shear wall 1 has an installation area 8 above it. The supporting structure includes a formwork assembly 2, a first supporting assembly 3, a first embedded assembly 4, a second supporting assembly 5, a second embedded assembly 6 and a middle assembly 7. The formwork assembly 2 includes a first formwork 21 and a second formwork 22. The lower portion of the first formwork 21 has a first connecting section, and the lower portion of the second formwork 22 has a second connecting section. The first connecting section and the second connecting section are arranged in an installation area 8 relative to each other. A casting chamber of a second shear wall is formed between the first formwork 21 and the second formwork 22. The first connecting section is fitted with an outer surface of one side of the first shear wall 1, and the second connecting section is fitted with an outer surface of the other side of the first shear wall 1. The first supporting assembly 3 is arranged in the installation area 8. The first supporting assembly 3 includes a first beam 31 and a second beam 32. The first beam 31 is arranged in the first The first beam 31 is used to support the first formwork 21, and the second beam 32 is arranged at the lower edge of the second connecting section, and the second beam 32 is used to support the second formwork 22; the first embedded component 4 includes a first embedded bolt 41 and a second embedded bolt 42, the first embedded bolt 41 passes through the installation area 8 of the first shear wall 1, and the first embedded bolt 41 sequentially connects the first beam 31 and the second beam 32, the second embedded bolt 42 passes through the installation area 8 of the first shear wall 1, and the second embedded bolt 42 sequentially connects the first connecting section and the second connecting section; the second supporting component 5 includes a third beam The third cross beam 51, the fourth cross beam 52, the first longitudinal beam 53 and the second longitudinal beam 54, the third cross beam 51 and the first longitudinal beam 53 are distributed on the outside of the first template 21 in a cross shape, and the fourth cross beam 52 and the second longitudinal beam 54 are distributed on the outside of the second template 22 in a cross shape; the second embedded component 6 includes a third embedded bolt 61 and a fourth embedded bolt 62, the third embedded bolt 61 passes through the casting chamber and sequentially connects the third cross beam 51, the first template 21, the second template 22 and the fourth cross beam 52, the fourth embedded bolt 62 passes through the casting chamber and sequentially connects the third cross beam 51 and the fourth cross beam 52 The center component 7 includes a core-filled steel pipe 71, a first hook bolt 72 and a second hook bolt 73. The core-filled steel pipe 71 has a first embedded section 711 and a first support section 712. The first embedded section 711 is arranged in the first shear wall 1, and the first support section 712 is arranged in the casting chamber. The first support section 712 is connected to the third beam 51 through the first hook bolt 72, and the first support section 712 is also connected to the fourth beam 52 through the second hook bolt 73. The core-filled steel pipe 71 is configured to fill the core before casting the second shear wall and embed the first embedded section 711 in the first shear wall 1 along the vertical direction.

[0022] In this embodiment, the first shear wall 1 can be understood as the shear wall at the bottom of the entire shear wall structure. The first shear wall area is the lower shear wall, and the second shear wall can be understood as the shear wall area in the middle of the entire shear wall structure, that is, the middle shear wall. Specifically, the entire shear wall structure needs to be cast and built section by section during the manufacturing process. The supporting structure adaptation stage shown in this embodiment is the stage where the first shear wall 1 has been cast and the second shear wall has not yet been cast, that is, the casting and manufacturing stage of the middle shear wall.

[0023] Furthermore, in the process of making the second shear wall, it is necessary to prepare a formwork assembly 2, which includes a first formwork 21 and a second formwork 22. The structures and materials of the first formwork 21 and the second formwork 22 can be completely the same, except that the first formwork 21 corresponds to one side of the second shear wall, and the second formwork 22 corresponds to the other side of the second shear wall. When in use, the first formwork 21 and the second formwork 22 are placed in the installation area 8 above the first shear wall 1. It should be noted that after the first shear wall 1 is poured, for the convenience of description, the area of ​​the first shear wall 1 required in the process of constructing the second shear wall is recorded as the installation area 8. Specifically, the lower part of the first formwork 21 has a first connecting section, and the lower part of the second formwork 22 has a second connecting section. The first connecting section and the second connecting section are arranged relatively in the installation area 8, that is, the first connecting section is a partial structure of the first formwork 21 placed in the installation area 8 of the first shear wall 1, and the second connecting section is a partial structure of the second formwork 22 placed in the installation area 8 of the first shear wall 1. Furthermore, the first connecting section is fitted with the outer surface of one side of the first shear wall 1, and the second connecting section is fitted with the outer surface of the other side of the first shear wall 1. The first connecting section and the second connecting section can form a fixed basis on the spatial structure for the first formwork 21 and the second formwork 22, so that the first formwork 21 and the second formwork 22 can be parallel to each other, and the casting chamber formed by the first formwork 21 and the second formwork 22 is consistent with the first shear wall 1 in terms of external structure, that is, the second shear wall formed after the subsequent pouring of concrete is consistent with the size of the first shear wall 1, thereby improving the overall consistency of the first shear wall 1 and the second shear wall.

[0024] Further, a first support assembly 3 is provided in the installation area 8, and the first support assembly 3 includes a first crossbeam 31 and a second crossbeam 32. The first crossbeam 31 supports the first formwork 21, and the second crossbeam 32 supports the second formwork 22. The first crossbeam 31 is provided at the lower edge of the first connecting section, and the first crossbeam 31 can be firmly connected to the installation area 8 in the form of the first embedded bolt 41 described later, and at the same time bear the full weight of the first formwork 21; similarly, the second crossbeam 32 is provided at the lower edge of the second connecting section, and the second crossbeam 32 can be firmly connected to the installation area 8 in the form of the first embedded bolt 41 described later, and at the same time bear the full weight of the second formwork 22. Optionally, the first crossbeam 31 and the second crossbeam 32 can be placed at the same height and arranged on both sides of the first shear wall 1 relative to each other.

[0025] Specifically, the present embodiment further includes a first embedded component 4, which includes a first embedded bolt 41 and a second embedded bolt 42. The first embedded bolt 41 penetrates the installation area 8 of the first shear wall 1 to connect the first beam 31 and the second beam 32. That is, during the pouring process of the first shear wall 1, the first embedded bolt 41 is placed in the pouring area of ​​the first shear wall 1 in advance. After the concrete is poured and solidified, the first embedded bolt 41 is embedded in the installation area 8. On this basis, the first beam 31 and the second beam 32 are installed and locked by corresponding nuts, so that the first beam 31 and the second beam 32 can be fixed on the first shear wall 1. Similarly, the second embedded bolt 42 can be pre-placed in the installation area 8 in the same embedding manner as the first embedded bolt 41. The second embedded bolt 42 penetrates the installation area 8 of the first shear wall 1 and connects the first connecting section and the second connecting section. The first embedded bolt 41 and the second embedded bolt 42 use three-section cone water stop bolts.

[0026] In this embodiment, the first template 21 and the second template 22 refer to the templates used in construction, and the materials generally include steel templates, aluminum alloy templates, plywood, plastic templates, etc. The main function of the template is to serve as a formwork and support for concrete pouring, maintain the position, size and geometric shape required by the design, bear the weight of the template and the external load on it, and ensure the formation of the concrete structure. The fixing method of the template has a direct impact on the construction efficiency, cost and concrete pouring effect.

[0027] On this basis, the present embodiment also includes a second supporting assembly 5, the second supporting assembly 5 includes a third cross beam 51, a fourth cross beam 52, a first longitudinal beam 53 and a second longitudinal beam 54, wherein the third cross beam 51 and the first longitudinal beam 53 are used to fix the first template 21, the fourth cross beam 52 and the second longitudinal beam 54 are used to fix the second template 22, the third cross beam 51 and the first longitudinal beam 53 are distributed in a cross pattern on the outer surface of the first template 21, further, the third cross beam 51 and the first longitudinal beam 53 are fixed by a second embedded assembly 6, the fourth cross beam 52 and the second longitudinal beam 54 are distributed in a cross pattern on the outer surface of the second template 22, further, the fourth cross beam 52 and the second longitudinal beam 54 are fixed by the second embedded assembly 6. In this process, the cross-intersection point of the third cross beam 51 and the first longitudinal beam 53, and the cross-intersection point of the fourth cross beam 52 and the second longitudinal beam 54 can be set on the same reference line, so that a pre-embedded bolt can be used to connect the intersection points on both sides, saving production costs and production processes while fully ensuring the consistency of the structural distribution between the first template 21 and the second template 22.

[0028] Further, the second embedded assembly 6 includes a third embedded bolt 61 and a fourth embedded bolt 62, and the third embedded bolt 61 is placed in the casting chamber where the second shear wall is located. Specifically, it can be understood as follows: the two ends of the third embedded bolt 61 protrude from the first template 21 and the second template 22 respectively, and the part of the third embedded bolt 61 protruding from the first template 21 can clamp the third beam 51 together with the nut, and the part of the third embedded bolt 61 protruding from the second template 22 can clamp the fourth beam 52 together with the nut, so that the third beam 51 and the fourth beam 52 can be relatively fixed. It can be understood that the cross intersection of the first longitudinal beam 53 and the third beam 51 can be set at the fixed position of the third embedded bolt 61, and the cross intersection of the second longitudinal beam 54 and the fourth beam 52 can be set at the fixed position of the third embedded bolt 61, so that the specific fixing operation of the second support assembly 5 can be further saved. Accordingly, the size of the third embedded bolt 61 is adjusted and selected accordingly according to the shear force borne thereon. The third embedded bolt 61 adopts a three-stage cone water stop bolt, and the fourth embedded bolt 62 adopts a three-stage cone water stop bolt. The fourth embedded bolt 62 can be understood as an embedded bolt connecting the third beam 51 and the fourth beam 52. The fourth embedded bolt 62 and the third embedded bolt 61 can use the same structure and model, and this embodiment is not limited to this. It should be noted that the setting of the fourth embedded bolt 62 can strengthen the connection between the third beam 51 and the fourth beam 52, thereby enhancing the overall stability and bearing capacity between the entire first template 21 and the second template 22.

[0029] In this embodiment, the first crossbeam 31, the second crossbeam 32, the third crossbeam 51 and the fourth crossbeam 52 refer to horizontal members connecting the longitudinal beams (vertical supports), and their main function is to provide horizontal stability and bearing capacity for the formwork frame, constitute the fixed frame structure of the formwork assembly 2, and enhance the rigidity and bearing capacity of the entire formwork assembly 2. The first longitudinal beam 53 and the second longitudinal beam 54 refer to the main load-bearing beams arranged along the longitudinal direction of the building structure, which transfer the load to the support system.

[0030] In this embodiment, the center assembly 7 includes a core-cast steel pipe 71, a first hook bolt 72 and a second hook bolt 73, wherein the core-cast steel pipe 71 is a steel pipe for pouring concrete in the middle, and further, the core-cast steel pipe 71 is divided into a first support section 712 and a first embedded section 711, wherein the first embedded section 711 is pre-inserted into the pouring area of ​​the first shear wall 1 when pouring the first shear wall 1, and after the concrete in the first shear wall 1 solidifies, the first embedded section 711 embedded in the installation area 8 is formed. The first support section 712 is also provided in the pouring chamber, and is used to support the first formwork 21 and the second formwork 22 to facilitate the pouring of the second shear wall. It can be understood that the core-cast steel pipe 71 maintains a vertical direction, and it serves as the main supporting structure of the first formwork 21 and the second formwork 22, and the core-cast steel pipe 71 is vertically connected to the first shear wall 1. The first support section 712 may be provided with a plurality of connection nodes for fixing the first template 21 and the second template 22, such as the socket plate 74 described later. The first support section 712 is connected to the first crossbeam 51 through the first hook bolt 72, and the first support section 712 is connected to the fourth crossbeam 52 through the second hook bolt 73. It should be noted that the number of the core-filled steel pipes 71 may be multiple, and the number of the first hook bolt 72 and the second hook bolt 73 may also be multiple, which can be set according to actual needs. The first hook bolt 72 and the second hook bolt 73 are single-sided cone water-stop bolts.

[0031] This embodiment includes a formwork assembly 2, a first support assembly 3, a second support assembly 5, a first embedded assembly 4, a second embedded assembly 6 and a center assembly 7. The center assembly 7 solves the problems of vertical support and lateral stability in the existing formwork system, especially when the height of the formwork assembly 2 is large, it is more difficult to adopt a lateral support solution. This embodiment pre-fills the core-filled steel pipe 71 in the center assembly 7 to form a steel tube concrete structure, which greatly enhances the rigidity of the core-filled steel pipe 71 itself. After the second shear wall is located through the current support structure and concrete pouring, there is no need to supplement the grouting of the second shear wall, thereby improving the on-site construction efficiency. In the case where there is no horizontal structural member to provide support in the support structure of the second shear wall, the core-filled steel pipe 71 can be pre-buried. For the side wall construction where there is a floor slab, the outer diagonal bracing structure can still be constructed according to the traditional side wall construction process, and the solution selection is flexible. The method of using the first embedded bolt 41 and the first support assembly 3 to support the formwork assembly 2 can bear the deadweight of the first formwork 21 and the second formwork 22 and the second support assembly 5, and the on-site construction operation is convenient and the force transmission path is simple. The first hook bolt 72 and the second hook bolt 73 are used to achieve reliable force transmission, improve efficiency and improve economy.

[0032] See also Figure 1 and Figure 2In some embodiments, the first support assembly 3 further includes a fifth crossbeam 33 and a sixth crossbeam 34. The fifth crossbeam 33 is arranged in the first connection section, and the second embedded bolt 42 is connected to the first connection section through the fifth crossbeam 33; the sixth crossbeam 34 is arranged in the second connection section, and the second embedded bolt 42 is connected to the second connection section through the sixth crossbeam 34; the first embedded assembly 4 further includes a first fastener 43 and a second fastener 44. The first fastener 43 is fastened at the connection between the fifth crossbeam 33 and the second embedded bolt 42; the second fastener 44 is fastened at the connection between the sixth crossbeam 34 and the second embedded bolt 42.

[0033] In this embodiment, the fifth crossbeam 33 is arranged on the outer surface of the first connecting section, and the sixth crossbeam 34 is arranged on the outer surface of the second connecting section. Optionally, the fifth crossbeam 33 and the sixth crossbeam 34 are placed at the same height, and the two ends of the second embedded bolt 42 can respectively connect the fifth crossbeam 33 and the sixth crossbeam 34. Specifically, the first embedded component 4 also includes a first fastener 43 and a second fastener 44. The specific shapes of the first fastener 43 and the second fastener 44 can be set according to actual needs. For example, in this embodiment, the number of the fifth crossbeams 33 is two and they are arranged in parallel, then the first fastener 43 corresponds to a 3-type fastener or a C-type fastener, the second embedded bolt 42 is arranged between the two fifth crossbeams 33, and is bolted to the first fastener 43, so that the two fifth crossbeams 33 and the first connecting section are fixed in the installation area 8. Similarly, the number of sixth beams 34 is also two and they are arranged in parallel, then the second fastener 44 corresponds to a Type 3 fastener or a Type C fastener, the second embedded bolt 42 is arranged between the two sixth beams 34, and is bolted to the second fastener 44 to fix the two sixth beams 34 and the second connecting section in the installation area 8.

[0034] This embodiment achieves a firm connection between the first formwork 21 and the installation area 8 of the first shear wall 1, and a firm connection between the second formwork 22 and the installation area 8 of the first shear wall 1 by setting the first fastener 43, the second fastener 44, the fifth crossbeam 33 and the sixth crossbeam 34.

[0035] See also Figure 1 and Figure 2 In some embodiments, in the brace-free shear wall support structure of the central cast-in-place steel pipe 71, part of the first longitudinal beam 53 is cross-arranged with the fifth transverse beam 33, and the first longitudinal beam 53 is overlapped with the first transverse beam 31; part of the second longitudinal beam 54 is cross-arranged with the sixth transverse beam 34, and the second longitudinal beam 54 is overlapped with the second transverse beam 32.

[0036] In this embodiment, a portion of the first longitudinal beam 53 is hung down to the installation area 8 and intersects with the fifth cross beam 33. Furthermore, the lower end of the first longitudinal beam 53 is overlapped on the first cross beam 31, so that the first cross beam 31 can bear the weight of the first longitudinal beam 53, the third cross beam 51, and the first template 21. Similarly, a portion of the second longitudinal beam 54 is hung down to the installation area 8 and intersects with the sixth cross beam 34. Further, the lower end of the second longitudinal beam 54 is overlapped on the second cross beam 32, so that the second cross beam 32 can bear the weight of the second longitudinal beam 54, the fourth cross beam 52, and the second template 22.

[0037] The structure shown in this embodiment can increase the connection stability of the first longitudinal beam 53 and the second longitudinal beam 54 , and at the same time strengthen the connection tightness between the first template 21 , the second template 22 and the installation area 8 .

[0038] See also Figure 1 and Figure 2 In some embodiments, the third cross beam 51 extends in the horizontal direction, and the fourth cross beam 52 is symmetrically arranged with the third cross beam 51 ; the first longitudinal beam 53 extends in the vertical direction, and the second longitudinal beam 54 is symmetrically arranged with the first longitudinal beam 53 .

[0039] This embodiment shows that the third cross beam 51 and the fourth cross beam 52 extend in the horizontal direction, and the first longitudinal beam 53 and the second longitudinal beam 54 extend in the vertical direction. Such an orthogonal layout is compatible with the existing construction method, and also makes it more convenient to build the first template 21 and the second template 22. The setting position of the third embedded bolt 61 can save the laying of redundant bolts on site and improve the utilization rate of the third embedded bolt 61.

[0040] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the second embedded component 6 further includes a third fastener 63 and a fourth fastener 64. The third fastener 63 is fastened at the connection between the fourth embedded bolt 62 and the third beam 51; the fourth fastener 64 is fastened at the connection between the fourth embedded bolt 62 and the fourth beam 52.

[0041] In this embodiment, the use of the third fastener 63 and the fourth fastener 64 can improve the overall stability and safety of the structure. Similar to the first fastener 43 and the second fastener 44, the specific structure of the third fastener 63 and the fourth fastener 64 can be set according to actual needs, and this embodiment does not limit this. In this embodiment, by setting the third fastener 63 and the fourth fastener 64, the connection of multiple structural components is more stable, reducing the risk of structural instability due to improper construction or load changes, while also improving construction efficiency and quality, preventing the connection parts from sliding or loosening relative to each other when subjected to force, and enhancing the rigidity and bearing capacity of the structure.

[0042] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the center assembly 7 further includes a socket plate 74 group. The socket plate 74 group includes a plurality of socket plates 74, which are spaced apart in the vertical direction on the first support section 712, each of which is provided with a first connection hole 741 and a second connection hole 742, and the first connection hole 741 and the second connection hole 742 are arranged opposite to each other; the first hook bolt 72 is connected to the first support section 712 through the first connection hole 741, and the second hook bolt 73 is connected to the first support section 712 through the second connection hole 742.

[0043] In this embodiment, the first hook bolt 72 is connected to the core-filled steel pipe 71 at the first connection hole 741, the second hook bolt 73 is connected to the core-filled steel pipe 71 at the second connection hole 742, and the socket plate 74 is sleeved on the periphery of the core-filled steel pipe 71. In this embodiment, multiple socket plates 74 can be distributed along the axial direction of the core-filled steel pipe 71 by welding. It should be noted that the first hook bolt 72 and the second hook bolt 73 correspond to one socket plate 74. When the number of the socket plates 74 is multiple, the number of the first hook bolt 72 and the second hook bolt 73 corresponds to the number of the socket plates 74. Optionally, in some embodiments, if the height of the socket plate 74 is exactly the cross intersection of the first longitudinal beam 53 and the third cross beam 51, and exactly the cross intersection of the second longitudinal beam 54 and the fourth cross beam 52, the first hook bolt 72 and the second hook bolt 73 can replace the third embedded bolt 61 that should be set at this position, and play the same supporting effect, reducing the manufacturing cost. In this embodiment, a plurality of socket plates 74 are provided to make the connection between the core-filled steel pipe 71 and the first template 21 and the second template 22 more stable, with a simple structure and a high safety factor.

[0044] See also Figure 1 and Figure 2 In some embodiments, the length of the first embedded section 711 is not less than 500 mm. This length can improve the anchoring effect of the cast-in-place steel pipe 71 in the first shear wall 1, increase the strength of the first supporting section 712, and improve construction safety.

[0045] See also Figure 1 and Figure 2 In some embodiments, the first cross beam 31 and / or the second cross beam 32 are made of square steel pipes.

[0046] In some embodiments, using a square steel tube as the first crossbeam 31 and / or the second crossbeam 32 can provide higher stability and bearing capacity. Due to its structural characteristics, the square steel tube has good torsion resistance and symmetrical cross-sectional characteristics, which makes the distribution more uniform when bearing loads, reducing the risk of structural damage due to local stress concentration. In addition, the square steel tube is also easy to process and install, which helps to improve construction efficiency. The square steel tube can provide better mechanical properties when bearing loads due to its cross-sectional characteristics. The moment of inertia of the square cross section is more uniform in all directions than that of cross sections of other shapes, which helps to maintain the stability of the structure under complex stress conditions. At the same time, the four corners of the square steel tube provide additional support points, which can better resist shear and bending moments, thereby improving the stiffness and strength of the entire support structure. A square steel tube refers to a pipe with a square cross-section, made of steel, and having four equal sides and four right angles. Square steel tubes are often used in building structures where high stability and bearing capacity are required due to their structural symmetry and uniformly distributed cross-sectional characteristics.

[0047] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, there are multiple first embedded components 4, and multiple first embedded components 4 are distributed at intervals along the horizontal direction; there are multiple third crossbeams 51, and multiple third crossbeams 51 are distributed at intervals along the vertical direction on the first template 21; there are multiple fourth crossbeams 52, and multiple fourth crossbeams 52 are distributed at intervals along the vertical direction on the second template 22; there are multiple first longitudinal beams 53, and multiple first longitudinal beams 53 are distributed at intervals along the horizontal direction on the first template 21; there are multiple second longitudinal beams 54, and multiple second longitudinal beams 54 are distributed at intervals along the horizontal direction on the second template 22; there are multiple center components 7, and multiple center components 7 are distributed at intervals along the horizontal direction.

[0048] Furthermore, the following examples can be developed based on the above solution: A bracing-free shear wall formwork system using a central cast-in-place steel pipe 71 comprises a cast-in-place A-core disc buckle steel pipe, hook bolts and hook bolts for connecting the formwork and the central steel pipe, a socket plate 74 welded on the side wall of the built-in steel pipe, through-wall tension bolts, vertical back ribs of the shear wall formwork, transverse ribs, shaped fasteners, bottom hanging formwork and bottom hanging formwork, bottom pre-buried through-wall tension bolts, and bottom transverse ribs.

[0049] After the lower shear wall is poured and the formwork is removed, retain the pre-buried through-wall tension bolts shown in the figure, fix the bottom horizontal ribs, and hang the middle shear wall formwork down in one section, that is, the bottom hanging formwork and the bottom hanging formwork in the figure, and drop them on the upper part of the bottom horizontal ribs. The bottom horizontal ribs are generally made of square wood or square steel pipes to support the lower section of the poured shear wall. At the same time, the vertical ribs are also extended down to a certain length and locked with tension bolts to reduce the risk of leakage and misalignment at the bottom of the shear wall segmented pouring. The bottom horizontal ribs are used to bear the deadweight of the upper shear wall formwork and back ribs.

[0050] Before pouring the lower shear wall, the buckle steel pipe that has been treated with shrinkage compensation concrete is embedded in the upper part of the lower shear wall. The embedded depth is not less than 500mm. After adjusting the verticality, it is positioned and the hook bolts are installed. The setting of the hook bolt can replace the through-wall tension bolts in the same position. Then, after completing the reinforcement binding of the middle shear wall, determine the position of the tension bolt hole, open the shear wall formwork, and complete the installation of the shear wall formwork and back ribs. Finally, tighten the hook bolts on both sides to ensure that the shear wall formwork and the internal steel pipe are subjected to the same force.

[0051] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Different from the existing technical solutions, the above technical solutions include a formwork assembly 2, a first support assembly 3, a second support assembly 5, a first embedded assembly 4, a second embedded assembly 6 and a center assembly 7. The center assembly 7 solves the problems of vertical support and lateral stability in the existing formwork system, especially when the height of the formwork assembly 2 is large, it is more difficult to adopt a lateral support solution. This technical solution pre-fills the core-filled steel pipe 71 in the center assembly 7 to form a steel tube concrete structure, which greatly enhances the rigidity of the core-filled steel pipe 71 itself. After the second shear wall is located through the current support structure and concrete pouring, there is no need to supplement the grouting of the second shear wall, thereby improving the on-site construction efficiency. In the case where there is no horizontal structural member to provide support in the support structure of the second shear wall, the core-filled steel pipe 71 can be pre-buried. For the side wall construction where there is a floor slab, the outer diagonal bracing structure can still be constructed according to the traditional side wall construction process, and the solution selection is flexible. The method of using the first embedded bolt 41 and the first support assembly 3 to support the formwork assembly 2 can bear the deadweight of the first formwork 21 and the second formwork 22 and the second support assembly 5, and the on-site construction operation is convenient and the force transmission path is simple. The first hook bolt 72 and the second hook bolt 73 are used to achieve reliable force transmission, improve efficiency and improve economy.

[0052] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A shear wall support structure without diagonal bracing and with a centrally placed cast-in-place steel pipe, characterized in that: Applicable to a first shear wall and a second shear wall, the first shear wall and the second shear wall are arranged in sequence from bottom to top, the first shear wall is configured as a shear wall structure that has been cast, the second shear wall is configured as a shear wall structure that has not been cast, and there is an installation area above the first shear wall, and the support structure includes: A template assembly, comprising a first template and a second template, wherein the first template has a first connecting section at the bottom, and the second template has a second connecting section at the bottom, the first connecting section and the second connecting section are arranged opposite to each other in the installation area, a casting chamber of the second shear wall is formed between the first template and the second template, the first connecting section is in contact with an outer surface of one side of the first shear wall, and the second connecting section is in contact with an outer surface of the other side of the first shear wall; a first support assembly, arranged in the installation area, comprising a first crossbeam and a second crossbeam, wherein the first crossbeam is arranged at the lower edge of the first connecting section, and is used to support the first template, and the second crossbeam is arranged at the lower edge of the second connecting section, and is used to support the second template; A first embedded component includes a first embedded bolt and a second embedded bolt, wherein the first embedded bolt passes through the installation area of ​​the first shear wall and sequentially connects the first crossbeam and the second crossbeam, and the second embedded bolt passes through the installation area of ​​the first shear wall and sequentially connects the first connecting section and the second connecting section; A second support assembly includes a third cross beam, a fourth cross beam, a first longitudinal beam and a second longitudinal beam, wherein the third cross beam and the first longitudinal beam are distributed on the outside of the first template in a cross pattern, and the fourth cross beam and the second longitudinal beam are distributed on the outside of the second template in a cross pattern; The second embedded component includes a third embedded bolt and a fourth embedded bolt, wherein the third embedded bolt passes through the casting chamber and sequentially connects the third beam, the first template, the second template and the fourth beam, and the fourth embedded bolt passes through the casting chamber and sequentially connects the third beam and the fourth beam; A central component includes a core-cast steel pipe, a first hook bolt and a second hook bolt, wherein the core-cast steel pipe has a first embedded section and a first supporting section, wherein the first embedded section is arranged in the first shear wall, and the first supporting section is arranged in the casting chamber, and the first supporting section is connected to the third beam through the first hook bolt, and the first supporting section is also connected to the fourth beam through the second hook bolt, and the core-cast steel pipe is configured to cast the core before casting the second shear wall and to embed the first embedded section vertically in the first shear wall.

2. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The first support assembly also includes: a fifth crossbeam, arranged at the first connecting section, wherein the second embedded bolt is connected to the first connecting section via the fifth crossbeam; A sixth crossbeam is provided at the second connecting section, and the second embedded bolt is connected to the second connecting section through the sixth crossbeam; The first embedded component also includes: a first fastener, fastened at a connection between the fifth crossbeam and the second embedded bolt; A second fastener is fastened at a connection between the sixth cross beam and the second embedded bolt.

3. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 2 is characterized in that: Part of the first longitudinal beam is cross-arranged with the fifth cross beam, and the first longitudinal beam is overlapped with the first cross beam; Part of the second longitudinal beam is cross-arranged with the sixth cross beam, and the second longitudinal beam is overlapped with the second cross beam.

4. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The third cross beam extends in the horizontal direction, and the fourth cross beam is symmetrically arranged with the third cross beam; The first longitudinal beam extends in a vertical direction, and the second longitudinal beam is symmetrically arranged with the first longitudinal beam.

5. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The second embedded component also includes: A third fastener, fastened at a connection between the fourth embedded bolt and the third crossbeam; The fourth fastener is fastened at the connection between the fourth embedded bolt and the fourth cross beam.

6. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The central component also includes: A socket set, comprising a plurality of sockets, wherein the plurality of sockets are spaced apart in the vertical direction on the first support section, each of the sockets is provided with a first connecting hole and a second connecting hole, and the first connecting hole is arranged opposite to the second connecting hole; The first hook bolt is connected to the first supporting section through the first connecting hole, and the second hook bolt is connected to the first supporting section through the second connecting hole.

7. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The length of the first embedded section is not less than 500 mm.

8. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: The first crossbeam and / or the second crossbeam are made of square steel pipes; Alternatively, the first crossbeam and / or the second crossbeam are made of square wood.

9. The bracing-free shear wall support structure of the centrally placed cast-in-place steel pipe according to claim 1 is characterized in that: There are multiple first embedded components, and the multiple first embedded components are spaced apart in the horizontal direction; There are multiple third cross beams, and the multiple third cross beams are distributed on the first template at intervals along the vertical direction; There are multiple fourth cross beams, and the multiple fourth cross beams are distributed on the second template at intervals along the vertical direction; There are multiple first longitudinal beams, and the multiple first longitudinal beams are distributed on the first template at intervals along the horizontal direction; There are multiple second longitudinal beams, and the multiple second longitudinal beams are distributed on the second template at intervals along the horizontal direction; There are multiple center components, and the multiple center components are spaced apart and distributed in the horizontal direction.

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