Shear wall formwork, concrete box type module and concrete modular building

Abstract

The utility model provides a shear wall formwork, a concrete box type module and a concrete modular building. The shear wall formwork comprises a first formwork shell and a second formwork shell which are oppositely arranged. A first reinforcing mesh used for connecting two adjacent edge reinforcing steel bar sets is laid on the face, facing the second formwork, of the first formwork, the first reinforcing mesh is fixedly connected with a first truss extending in the height direction of the shear wall, the first end of the first truss is inserted into the first formwork, and the second end of the first truss is arranged facing the second formwork; a second reinforcing mesh used for connecting two adjacent edge reinforcing steel bar sets is laid on the face, facing the first formwork, of the second formwork, the second reinforcing mesh is fixedly connected with a second truss extending in the height direction of the shear wall, the first end of the second truss is inserted into the second formwork, and the second end of the second truss is arranged facing the first formwork. The shear wall formwork participates in stress, and shear wall steel bars do not need to be bound on site massively.

Description

Technical Field

[0001] The utility model relates to the technical field of modular buildings, in particular to a shear wall formwork, a concrete box-type module and a concrete modular building. Background Art

[0002] Traditional cast-in-place concrete structures require extensive on-site formwork installation and removal, consuming significant manpower and material resources and increasing construction timelines. Modular concrete construction technology has been widely adopted worldwide due to its advantages of rapid construction and high quality.

[0003] Concrete modular buildings are constructed from standardized, functional precast concrete box modules, manufactured in a factory and connected on-site. These modular buildings utilize precast shear wall forms for on-site concrete pouring, and precast beam forms for on-site concrete pouring. This significantly reduces on-site formwork and interior finishing time, resulting in faster construction and higher quality.

[0004] However, in the current concrete box modules, the shear wall formwork does not participate in the load-bearing process and is only used as a template. During the construction process, the thickness of the shear wall formwork is not calculated into the specified concrete thickness when pouring concrete, resulting in a thicker wall, encroaching on the usable indoor area and wasting materials. At the same time, during the construction process, the steel bars of the shear wall need to be tied on-site, which consumes a lot of time and limits production efficiency.

[0005] For this reason, a kind of improved shear wall formwork is badly needed. Utility Model Content

[0006] (1) Technical issues to be solved

[0007] In view of the problems existing in the above technologies, the present invention solves the problems to at least a certain extent. To this end, the present invention provides a shear wall formwork, a concrete box module and a concrete modular building.

[0008] (2) Technical solution

[0009] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0010] In a first aspect, the utility model provides a shear wall formwork, comprising a first shear wall formwork and a second shear wall formwork that are arranged opposite to each other;

[0011] A first steel mesh for connecting two adjacent edge steel bar groups is laid on a side of the first shear wall formwork facing the second shear wall formwork, a first truss extending along the height direction of the shear wall is fixedly connected to the first steel mesh at a position corresponding to the position between the two adjacent edge steel bar groups, a first end of the first truss is inserted into the first shear wall formwork to fix the first steel mesh on the first shear wall formwork, and a second end of the first truss is arranged toward the second shear wall formwork;

[0012] A second steel mesh for connecting two adjacent edge steel bar groups is laid on the side of the second shear wall formwork facing the first shear wall formwork. The second steel mesh is fixedly connected to a second truss extending along the height direction of the shear wall at a position corresponding to the position between the two adjacent edge steel bar groups. The first end of the second truss is inserted into the second shear wall formwork to fix the second steel mesh on the second shear wall formwork, and the second end of the second truss is arranged toward the first shear wall formwork.

[0013] Optionally, the first shear wall formwork is an L-shaped shear wall first formwork, and the second shear wall formwork is an L-shaped shear wall second formwork; or, the first shear wall formwork is a T-shaped shear wall first formwork, and the second shear wall formwork is a T-shaped shear wall second formwork.

[0014] Optionally, a nut mounting groove and a through hole connected in sequence from the outside to the inside are provided on the second formwork of the shear wall, and a mounting nut is fixedly provided on the second end of the first truss, and the mounting nut corresponds to the position of the through hole; the screw rod of the T-type mounting bolt can pass through the through hole and be threadedly connected to the mounting nut, and the head of the T-type mounting bolt is accommodated in the nut mounting groove.

[0015] Optionally, the first truss includes a first plane steel bar, a first truss vertical bar, and a first vertical bar extending in the height direction of the shear wall; the first plane steel bar is formed by continuously bending a steel bar into a triangular waveform, the first plane steel bar has a first end and a second end opposite to each other in the direction from the first shear wall formwork to the second shear wall formwork, the first plane steel bar is arranged perpendicular to the first steel mesh, the first end of the first plane steel bar is fixedly connected to the first steel mesh through the first truss vertical bar, the first end of the first plane steel bar is bent and inserted into the first shear wall formwork, and the second end of the first plane steel bar is fixedly connected to the second steel mesh through the second vertical bar;

[0016] The first end of the supporting steel bar extending along the first formwork of the shear wall toward the second formwork of the shear wall is bent and inserted into the first formwork of the shear wall, and the second end of the supporting steel bar is fixedly connected with the mounting nut.

[0017] In a second aspect, the utility model provides a concrete box-type module, comprising a module bottom plate, a module top plate, a beam formwork, and a first precast wall, a first post-cast wall, a second precast wall, and a second post-cast wall connected in sequence around the edge of the module top plate, the first precast wall and the second precast wall being arranged opposite to each other, and the first post-cast wall and the second post-cast wall being arranged opposite to each other; the first precast wall and the second precast wall each comprising a partition wall and a shear wall formwork connected in sequence, the top of the shear wall formwork being connected to the edge of the module top plate, the top of the partition wall being connected to the edge of the module top plate through the beam formwork, the top of the first post-cast wall being connected to the edge of the module top plate, and the bottom of the second post-cast wall being connected to the edge of the module top plate; the top of the shear wall formwork being connected to the edge of the module bottom plate, the bottom of the partition wall being connected to the edge of the module bottom plate, the bottom of the first post-cast wall being connected to the edge of the module bottom plate, and the bottom of the second post-cast wall being connected to the edge of the module bottom plate;

[0018] When the first prefabricated wall is a module exterior wall, the shear wall formwork in the first prefabricated wall is the shear wall formwork described above; when the first prefabricated wall is a module interior wall, the shear wall formwork in the first prefabricated wall is the shear wall first formwork or the shear wall second formwork described above;

[0019] When the second prefabricated wall is a module exterior wall, the shear wall formwork in the second prefabricated wall is the shear wall formwork described above; when the second prefabricated wall is a module interior wall, the shear wall formwork in the second prefabricated wall is the shear wall first formwork or the shear wall second formwork described above; wherein, the thickness of the beam formwork is within 30 mm, and the thickness of the shear wall formwork is within 30 mm.

[0020] Optionally, when the first prefabricated wall is a module exterior wall, the shear wall formwork in the first prefabricated wall is an L-shaped shear wall formwork; when the first prefabricated wall is a module interior wall, the shear wall formwork in the first prefabricated wall is a T-shaped shear wall first formwork or a T-shaped shear wall second formwork; when the second prefabricated wall is a module exterior wall, the shear wall formwork in the second prefabricated wall is an L-shaped shear wall formwork; when the second prefabricated wall is a module interior wall, the shear wall formwork in the second prefabricated wall is a T-shaped shear wall first formwork or a T-shaped shear wall second formwork.

[0021] Optionally, the beam mold formwork is used to be spliced with the beam mold formwork of adjacent box-type modules to form a beam mold; an installation hole is provided on the beam mold formwork, and after the beam mold formwork is spliced with the beam mold formwork of the adjacent box-type modules to form a beam mold, the installation hole corresponds to the position of the installation hole opened on the beam mold formwork of the adjacent box-type modules, and the tension bolt can pass through the two installation holes in sequence, and the tension bolt can be fastened to the beam mold through the tension nut.

[0022] Optionally, a protrusion is provided on one side of the beam formwork shell facing the outside of the module at a position corresponding to the mounting hole, and the mounting hole is provided through the protrusion.

[0023] In a third aspect, the utility model provides a concrete modular building, comprising at least two vertically connected concrete module layers, each concrete module layer comprising at least two transversely spliced concrete box modules as described above, a beam formwork and a shear wall formwork as described above being formed between the two transversely spliced concrete box modules; the shear wall formwork in the upper concrete module layer corresponds to the position of the shear wall formwork in the lower concrete module layer, and the corresponding upper shear wall formwork and the lower shear wall formwork are overlapped by steel bars; the beam formwork and the shear wall formwork are used for pouring concrete.

[0024] Optionally, in the upper shear wall formwork and the lower shear wall formwork at corresponding positions, spiral stirrups are vertically inserted into the first edge steel bar group and the second edge steel bar group of the lower shear wall formwork, and the spiral stirrups are fixedly connected to the first edge steel bar group and the second edge steel bar group. One end of the spiral stirrups extends upward from the lower shear wall formwork and is inserted into the first edge steel bar group and the second edge steel bar group of the upper shear wall formwork.

[0025] (3) Beneficial effects

[0026] The beneficial effects of the utility model are:

[0027] The shear wall formwork provided by the present invention divides the internal reinforcement group used to connect the first edge reinforcement group and the second edge reinforcement group into two parts, both of which are two-dimensional structures, facilitating the automated binding or welding of the reinforcement during the production of the internal reinforcement group. Furthermore, the first part of the internal reinforcement group (including the first reinforcement mesh and the first truss) is pre-embedded in the first formwork, and the second part of the internal reinforcement group (including the second reinforcement mesh and the second truss) is pre-embedded in the second formwork. This allows a large number of reinforcement connections of the internal reinforcement group to be made during the prefabrication of the wall formwork, greatly reducing the amount of reinforcement binding and welding during on-site construction, and significantly improving production efficiency. Furthermore, through the first truss and the second truss, the first formwork and the second formwork can effectively overlap with the concrete poured in the wall formwork, jointly participating in the structural load, making the first formwork and the second formwork part of the shear wall, that is, the first formwork and the second formwork also become load-bearing components, rather than just temporary formwork, thereby improving material utilization, increasing the indoor usable building area, and significantly increasing the rigidity of the first formwork and the second formwork, reducing the possibility of cracks in the formwork during transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is described with the help of the following drawings:

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the concrete box module of Example 1;

[0030] Figure 2This is a schematic top view of the concrete box module of Example 1;

[0031] Figure 3 This is a schematic diagram of the assembly structure of a prefabricated wall used as a modular exterior wall in Example 1;

[0032] Figure 4 Schematic diagram of the overall structure of the L-shaped shear wall of Example 1;

[0033] Figure 5 Schematic diagram of the decomposed structure of the L-shaped shear wall of Example 1;

[0034] Figure 6 This is a schematic structural diagram of the first truss in Example 1;

[0035] Figure 7 Schematic diagram of the structure of the steel mesh and multiple supporting steel plates embedded in the second formwork of the L-shaped shear wall of Example 1;

[0036] Figure 8 Schematic diagram of the assembly structure of the L-shaped shear wall of the embodiment;

[0037] Figure 9 This is a schematic diagram of the assembly structure of the prefabricated wall used as the module inner wall in Example 1;

[0038] Figure 10 Schematic diagram of the overall structure of the T-shaped shear wall of Example 1;

[0039] Figure 11 This is a schematic diagram of the decomposed structure of the T-shaped shear wall of Example 1;

[0040] Figure 12 This is a schematic structural diagram of two transversely spliced concrete box modules according to an embodiment;

[0041] Figure 13 for Figure 12 A schematic cross-sectional view at AA in the middle shows a module layer;

[0042] Figure 14 for Figure 12 A schematic cross-sectional view at BB in the middle shows two module layers;

[0043] Figure 15 for Figure 12 A schematic cross-sectional view at CC in the middle shows two module layers;

[0044] Figure 16 for Figure 12 Schematic cross-sectional view at DD in the middle, showing two module layers.

[0045] [Description of Reference Numerals]

[0046] 1: Module top plate;

[0047] 2: The first prefabricated wall;

[0048] 21: L-shaped shear wall first formwork; 22: L-shaped shear wall second formwork; 23: First steel mesh; 24: First truss; 25: Second steel mesh; 26: Second truss; 27: First edge steel bar group; 28: Second edge steel bar group; 29: First steel bar group;

[0049] 211: first straight portion; 212: second straight portion;

[0050] 221: Mounting slot; 222: Through hole; 223: Steel mesh; 224: Supporting steel plate; 225: Casting hole;

[0051] 241: Mounting nut; 242: T-shaped mounting bolt; 243: First plane reinforcement; 244: First truss vertical reinforcement; 245: Support reinforcement; 246: First vertical reinforcement;

[0052] 261: Second plane reinforcement; 262: Third plane reinforcement;

[0053] 281: Wall longitudinal reinforcement; 282: Tensile reinforcement;

[0054] 3: First post-cast wall;

[0055] 4: Second prefabricated wall;

[0056] 41: T-type shear wall first formwork; 42: T-type shear wall second formwork; 43: third steel mesh; 44: third truss; 45: fourth steel mesh; 46: fourth truss;

[0057] 411: third straight portion; 412: fourth straight portion;

[0058] 421: fifth straight portion; 422: sixth straight portion;

[0059] 5: The second post-cast wall;

[0060] 61: beam formwork shell; 63: tension bolt; 64: raised portion;

[0061] 71: Spiral stirrups; 72: Connecting steel bars; 73: Screw sleeves. DETAILED DESCRIPTION

[0062] Example 1

[0063] like Figure 1 and Figure 2As shown, the box-type module includes a module top plate 1, and a first precast wall 2, a first post-cast wall 3, a second precast wall 4, and a second post-cast wall 5, which are sequentially connected around the edge of the module top plate 1. In this embodiment, the first precast wall 2 and the second precast wall 4 are arranged opposite each other, and the first post-cast wall 3 and the second post-cast wall 5 are arranged opposite each other, and the box-type module is rectangular.

[0064] The shear wall formwork generally includes a first shear wall formwork and a second shear wall formwork that are arranged opposite to each other. A flat cavity is formed between the first shear wall formwork and the second shear wall formwork. The flat cavity contains a steel cage. The steel cage includes an edge steel bar group and an internal steel bar group for connecting two adjacent edge steel bar groups. The edge steel bar group refers to a cage-shaped structure made of steel bars used to construct edge hidden columns, edge end columns, and edge corner walls in a concrete structure.

[0065] The first prefabricated wall 2 and the second prefabricated wall 4 both include partition walls and shear wall formworks connected in sequence. The side of the shear wall formwork facing the interior of the module serves as the inner surface of the module. The side of the shear wall formwork facing away from the interior of the module is paved with a steel mesh for connecting two adjacent edge steel bar groups. The steel mesh is fixedly connected to a truss extending along the height direction of the shear wall at a position corresponding to the position between the two adjacent edge steel bar groups. The first end of the truss is inserted into the shear wall formwork to fix the steel mesh on the shear wall formwork, and the second end of the truss is set toward the outside of the module.

[0066] The top of the shear wall formwork is connected to the edge of the module top plate 1.

[0067] Among them, the thickness of the shear wall formwork is within 30mm.

[0068] In the concrete box-type module thus configured, a portion of the internal steel bar group of the shear wall is pre-embedded on the shear wall formwork included in the first prefabricated wall 2 and the second prefabricated wall 4, so that the connection of the shear wall steel bars occurs during the production process of the box-type module, reducing the amount of on-site connection of the shear wall steel bars during construction. In addition, the steel bars embedded in the shear wall formwork are a two-dimensional structure, which facilitates the automated binding or welding of the steel bars during the production of the box-type module, thereby improving production efficiency. In addition, by providing trusses on the shear wall formwork, concrete is poured during construction to form a shear wall. The trusses can effectively overlap with the concrete of the shear wall and jointly participate in the structural load-bearing, making the shear wall formwork a part of the shear wall, that is, the shear wall formwork also becomes a load-bearing component, rather than just a temporary formwork, thereby improving material utilization and increasing the indoor usable building area.

[0069] Depending on whether the prefabricated wall is used as a module interior wall or a module exterior wall, the structure of the prefabricated wall is different, which is introduced in detail below.

[0070] When the prefabricated wall (which may be the first prefabricated wall 2 or the second prefabricated wall 4) is used as a module exterior wall, Figure 3 As shown, the prefabricated wall includes a first shear wall formwork and a second shear wall formwork disposed opposite the first shear wall formwork. Both the first shear wall formwork and the second shear wall formwork are connected to the partition wall. The side of the first shear wall formwork facing the interior of the module serves as the inner surface of the module, and the side of the second shear wall formwork facing away from the interior of the module serves as the outer surface of the module. A first steel mesh 23 for connecting two adjacent edge steel bar groups is laid on the side of the first shear wall formwork facing away from the interior of the module. The first steel mesh 23 is fixedly connected to a first truss 24 extending along the height direction of the shear wall at a position corresponding to the position between the two adjacent edge steel bar groups. The first end of the first truss 24 is inserted into the first shear wall formwork to secure the first steel mesh 23 to the first shear wall formwork, and the second end of the first truss 24 is disposed toward the second shear wall formwork. The second shear wall formwork, facing the interior of the module, is covered with a second steel mesh 25 for connecting two adjacent edge reinforcement groups. A second truss 26, extending along the height of the shear wall, is fixedly connected to the second steel mesh 25 at the position corresponding to the position between the two adjacent edge reinforcement groups. The first end of the second truss 26 is inserted into the second shear wall formwork to secure the second steel mesh 25 to the second shear wall formwork, and the second end of the second truss 26 is positioned toward the first shear wall formwork. The second end of the first truss 24 is fixedly connected to the second steel mesh 25.

[0071] In this way, a part of the internal steel bar group of the shear wall is also pre-embedded on the second formwork of the shear wall, which reduces the amount of on-site connection of the shear wall steel bars during construction, and the steel bars embedded in the second formwork of the shear wall are a two-dimensional structure, which facilitates the automated binding or welding of steel bars during the production of box-type modules and improves production efficiency. In addition, by arranging the second truss 26 on the second formwork of the shear wall, concrete is poured to form the shear wall during construction. The second truss 26 can be effectively overlapped with the concrete of the shear wall and jointly participate in the structural force, so that the second formwork of the shear wall becomes a part of the shear wall, that is, the second formwork of the shear wall also becomes a load-bearing component, rather than just being adapted as a temporary formwork, thereby improving material utilization and increasing the indoor usable building area.

[0072] Preferably, if Figure 3 As shown, when the first prefabricated wall 2 is used as a module exterior wall, the first prefabricated wall 2 includes a partition wall and an L-shaped shear wall first formwork 21 connected in sequence, and an L-shaped shear wall second formwork arranged opposite to the L-shaped shear wall first formwork.

[0073] like Figures 4 to 8As shown, preferably, the first formwork 21 of the L-shaped shear wall has a first straight portion 211 and a second straight portion 212, the second end of the first straight portion 211 and the second straight portion 212 are connected to form an L-shape, and the second formwork 22 of the L-shaped shear wall is straight and is arranged corresponding to the first straight portion 211; the first edge steel bar group 27 is fixedly arranged at the first end of the first straight portion 211, and the second edge steel bar group 28 is fixedly arranged at the second end of the first straight portion 211, and the two ends of the first steel mesh 23 are respectively fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28, and the two ends of the second steel mesh 25 are respectively fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28.

[0074] Preferably, the first steel bar group 29 is fixedly arranged on the second straight portion 212, and the stirrups of the first steel bar group 29 extending from the second straight portion 212 and the stirrups of the second edge steel bar group 28 extending from the first straight portion 211 are staggered and overlapped to form an overlapping portion, and the wall longitudinal reinforcement 281 extending along the height direction of the shear wall is inserted into the overlapping portion, and the second edge steel bar group 28 and the first steel bar group 29 are both fixedly connected to the wall longitudinal reinforcement 281.

[0075] Preferably, the projection shape of the overlapping part on the horizontal plane is a rectangle, four wall longitudinal bars 281 are inserted into the overlapping part and are respectively located at the four corners of the overlapping part, and the second edge steel bar group 28 and the first steel bar group 29 are fixedly connected to each wall longitudinal bar 281.

[0076] It should be noted that the first edge steel bar group 27, the second edge steel bar group 28 and the first steel bar group 29 are all structures with stirrups added around the vertical bars; the first edge steel bar group 27, the second edge steel bar group 28 and the first steel bar group 29 all have tie bars 28 fixedly connected to the vertical bars, and the parts of the tie bars 28 extending out of the stirrups are buried in the L-shaped shear wall formwork, so that the first edge steel bar group 27, the second edge steel bar group 28 and the first steel bar group 29 are fixedly set on the L-shaped shear wall formwork.

[0077] Preferably, the L-shaped shear wall second formwork 22 is provided with a mounting groove 221 and a through hole 222 that are sequentially connected from the outside to the inside. A mounting nut 241 is fixedly provided at the second end of the first truss 24, and the mounting nut 241 corresponds to the position of the through hole 222. The screw of the T-shaped mounting bolt 242 can pass through the through hole 222 and be threadedly connected to the mounting nut 241, and the head of the T-shaped mounting bolt 242 is accommodated in the mounting groove 221. In this way, the L-shaped shear wall first formwork 21 and the L-shaped shear wall second formwork 22 can form a tension connection, forming lateral stress between the L-shaped shear wall first formwork 21 and the L-shaped shear wall second formwork 22, thereby preventing the formwork from deforming or cracking during subsequent construction.

[0078] Preferably, the first truss 24 includes a first plane steel bar 243 and a first truss vertical bar 244 extending along the height direction of the shear wall. The first plane steel bar 243 is formed by continuously bending a steel bar into a triangular waveform. The first plane steel bar 243 has a relative first end and a second end in the direction from the first formwork to the second formwork. The first plane steel bar 243 is arranged perpendicular to the first steel mesh 23. The first end of the first plane steel bar 243 is fixedly connected to the first steel mesh 23 through the first truss vertical bar 244. The first end of the first plane steel bar 243 is bent and inserted into the first formwork. The second end of the first plane steel bar 243 is fixedly connected to the second steel mesh 25.

[0079] Furthermore, the mounting nut 241 is fixed to the second end of the first planar steel bar 243 .

[0080] Further preferably, the first end of the support bar 245, which extends from the first L-shaped shear wall formwork 21 toward the second L-shaped shear wall formwork 22, is bent and inserted into the first L-shaped shear wall formwork 21. The second end of the support bar 245 is fixedly connected to the mounting nut 241. In this way, the support bar 245 can support the mounting nut 241, facilitating stable installation of the mounting nut 241 on the first truss 24. Furthermore, the first end of the support bar 245 is also fixedly connected to the first reinforcement mesh 23.

[0081] Preferably, the second truss 26 includes a second planar steel bar 261, a third planar steel bar 262, and a second truss 26 vertical bar extending along the height of the shear wall. The second planar steel bar 261 and the third planar steel bar 262 are each formed by continuously bending a single steel bar into a triangular waveform. The second planar steel bar 261 and the third planar steel bar 262 each have opposing first and second ends in the direction from the first formwork to the second formwork. The angle between the second planar steel bar 261 and the second steel mesh 25 is consistent with the angle between the third planar steel bar 262 and the second steel mesh 25. The first end of the second planar steel bar 261 is fixedly connected to the first end of the third planar steel bar 262 via the second truss 26 vertical bar. The second end of the second planar steel bar 261 is bent and inserted into the second L-shaped shear wall formwork 22. The second end of the third planar steel bar 262 is bent and inserted into the second L-shaped shear wall formwork 22. The second truss 26 is located between two adjacent first trusses 24. Furthermore, the second truss 26 is spaced apart from the first steel mesh 23.

[0082] Preferably, the horizontal steel bars in the first steel mesh 23 are stress-bearing steel bars, and the horizontal steel bars in the second steel mesh 25 are stress-bearing steel bars; the second steel mesh 25 has a first vertical bar 246, which is fixedly connected to the second end of the first planar steel bar 243, and the first truss vertical bar 244 and the first vertical bar 246 are stress-bearing steel bars. In this way, a double-layer, bidirectional (horizontal direction and shear wall height direction) stress-bearing steel cage is formed, which not only ensures the stability of the steel cage structure, but also saves steel material and amount, reducing costs. Specifically, the diameter of the stress-bearing steel bar is 10 to 16 mm.

[0083] Preferably, a wire mesh 223 and a plurality of support steel plates 224 are embedded within the second formwork 22 of the L-shaped shear wall. The plurality of support steel plates 224 are arranged in a horizontally spaced sequence. The support steel plates 224 are positioned corresponding to the nut mounting slots 221 and are located inside the nut mounting slots 221. The support steel plates 224 are provided with through-holes 222 for passing T-shaped mounting bolts 242. The support steel plates 224 are welded to the wire mesh 223 and extend from the top to the bottom of the second formwork. Casting holes 225 are provided between adjacent through-holes 222 in the support steel plates 224. This improves the structural strength of the second formwork, stabilizes the connection between the mounting nuts 241 and the T-shaped mounting bolts 242, and facilitates the casting and forming of the second prefabricated component through the casting holes 225.

[0084] When the prefabricated wall (which may be the first prefabricated wall 2 or the second prefabricated wall 4) is used as the inner wall of the module, Figure 9 As shown, the prefabricated wall includes a partition wall and a T-shaped shear wall first formwork 41 connected in sequence, and the prefabricated wall is used to be spliced with the T-shaped shear wall second formwork 42 of the prefabricated wall of the next box-type module to form a T-shaped shear wall formwork. The first formwork 41 of the T-shaped shear wall has a third straight portion 411 and a fourth straight portion 412. The second end of the third straight portion 411 and the fourth straight portion 412 are connected to form an L shape. The third straight portion 411 is paved with a third steel mesh 43 on the side facing away from the interior of the module. The first edge steel bar group 27 is fixedly arranged at the first end of the third straight portion 411, and the second edge steel bar group 28 is fixedly arranged at the second end of the third straight portion 411. The two ends of the third steel mesh 43 are respectively fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28; the third steel mesh 43 is fixedly connected to a third truss 44 extending along the height direction of the shear wall at a position corresponding to the position between the first and second edge steel bar groups 28. The first end of the third truss 44 is inserted into the shear wall formwork to fix the third steel mesh 43 on the shear wall formwork, and the second end of the third truss 44 is arranged toward the outside of the module.

[0085] In this way, most of the T-shaped shear wall steel bars are preset in the first T-shaped shear wall formwork 41, and a small part of the T-shaped shear wall steel bars are preset in the second T-shaped shear wall formwork 42. When the box-type modules are assembled during construction, it is convenient to move the second T-shaped shear wall formwork 42 of the latter module to align with the first T-shaped shear wall formwork 41 of the previous module to form a T-shaped shear wall formwork, thereby reducing the occurrence of steel bar collision during the splicing process.

[0086] When a prefabricated wall (which can be the first prefabricated wall 2 or the second prefabricated wall 4) is used as an inner wall of a module, the prefabricated wall includes a partition wall and a T-shaped shear wall second formwork 42 connected in sequence. The prefabricated wall is used to be spliced with the T-shaped shear wall first formwork 41 of the prefabricated wall of the previous box-type module to form a T-shaped shear wall formwork. The second formwork 42 of the T-shaped shear wall has a fifth straight portion 421 and a sixth straight portion 422. The second end of the fifth straight portion 421 and the sixth straight portion 422 are connected to form an L shape. The fifth straight portion 421 is paved with a fourth steel mesh 45 for connecting the first and second edge steel bar groups 28 on the side facing away from the interior of the module. The fourth steel mesh 45 is fixedly connected to a fourth truss 46 extending along the height direction of the shear wall at a position corresponding to the position between the first and second edge steel bar groups 28. The first end of the fourth truss 46 is inserted into the second formwork 42 of the T-shaped shear wall to fix the fourth steel mesh 45 on the second formwork 42 of the T-shaped shear wall, and the second end of the fourth truss 46 is set toward the outside of the module.

[0087] In this way, when assembling the box-type modules during construction, it is convenient to move the second T-shaped shear wall formwork 42 of the latter module to align with the first T-shaped shear wall formwork 41 of the previous module to form a T-shaped shear wall formwork, thereby reducing the occurrence of steel bar collision during the splicing process.

[0088] It should be noted that "front" and "back" refer to the order in which the box modules are installed during the construction process.

[0089] like Figures 10 and 11 As shown, preferably, the second steel bar group is fixed on the fourth straight portion 412, and the third steel bar group is fixed on the sixth straight portion 422; the first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork 42 are spliced to form a T-shaped shear wall formwork, and the second steel bar group and the second edge steel bar group 28 extend out of the protruding portion of the third straight portion 411, and the third steel bar group are arranged in sequence in the horizontal direction.

[0090] It should be noted that the first edge steel bar group 27, the second edge steel bar group 28, the second steel bar group and the third steel bar group are all structures with stirrups added around the vertical bars; the first edge steel bar group 27, the second edge steel bar group 28, the second steel bar group and the third steel bar group all have tie bars 28 fixedly connected to the vertical bars, and the parts of the tie bars 28 extending out of the stirrups are buried in the T-shaped shear wall formwork, so that the first edge steel bar group 27, the second edge steel bar group 28, the second steel bar group and the third steel bar group are fixedly set on the T-shaped shear wall formwork.

[0091] Preferably, the second T-shaped shear wall formwork 42 is provided with a mounting groove 221 and a through hole 222 that are sequentially connected from the outside to the inside, and a mounting nut 241 is fixedly provided on the second end of the third truss 44. The first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork 42 are spliced together to form the T-shaped shear wall formwork. The mounting nut 241 corresponds to the position of the through hole 222. The screw of the T-shaped mounting bolt 242 can pass through the through hole 222 and be threadedly connected to the mounting nut 241, and the head of the T-shaped mounting bolt 242 is accommodated in the mounting groove 221. In this way, after the first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork are spliced together to form the T-shaped shear wall formwork, the first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork 42 can form a tension connection between the first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork 42, thereby forming lateral stress between the first T-shaped shear wall formwork 41 and the second T-shaped shear wall formwork 42 to prevent deformation and cracking of the formwork during subsequent construction.

[0092] Preferably, the structure of the third truss 44 is consistent with the structure of the first truss 24 described above, and will not be described again here.

[0093] Further preferably, the first end of the support bar 245, which extends from the first T-shaped shear wall formwork 41 toward the second T-shaped shear wall formwork 42, is bent and inserted into the first T-shaped shear wall formwork 41. The second end of the support bar 245 is fixedly connected to the mounting nut 241. In this way, the support bar 245 can support the mounting nut 241, facilitating stable installation of the mounting nut 241 on the third truss 44. Furthermore, the first end of the support bar 245 is also fixedly connected to the third steel mesh 43.

[0094] Preferably, the structure of the fourth truss 46 is consistent with the structure of the second truss 26 described above, and will not be described in detail here.

[0095] Preferably, a wire mesh 223 and a plurality of supporting steel plates 224 are also embedded in the second formwork 42 of the T-shaped shear wall. The structure of the wire mesh 223 and the plurality of supporting steel plates 224 is the same as the structure of the wire mesh 223 and the plurality of supporting steel plates 224 embedded in the second formwork 22 of the above-mentioned L-shaped shear wall, and will not be repeated here.

[0096] In summary, based on the structures of the first prefabricated wall 2 and the second prefabricated wall 4, concrete box-type modules generally have the following four types. In the first type of concrete box-type module, the first prefabricated wall 2 is used as the module exterior wall, the second prefabricated wall 4 is used as the module interior wall, and the second prefabricated wall 4 includes a partition wall and a T-shaped shear wall first formwork 41 connected in sequence. In the second type of concrete box-type module, the first prefabricated wall 2 is used as the module interior wall, the first prefabricated wall 2 includes a partition wall and a T-shaped shear wall second formwork 42 connected in sequence, and the second prefabricated wall 4 is used as the module exterior wall. In the third type of concrete box-type module, the first prefabricated wall 2 is used as the module interior wall, the first prefabricated wall 2 includes a partition wall and a T-shaped shear wall first formwork 41 connected in sequence, and the second prefabricated wall 4 is used as the module interior wall, and the second prefabricated wall 4 includes a partition wall and a T-shaped shear wall second formwork 42 connected in sequence.

[0097] like Figure 12 and Figure 13 As shown, the beam mold generally includes two beam mold shells 61 arranged opposite to each other, and a flat cavity is formed between the two beam mold shells 61, and the flat cavity is used to accommodate the steel cage.

[0098] The tops of the partition wall, the first post-cast wall 3, and the second post-cast wall 5 are all formed with beam formwork shells 61, and the tops of the beam formwork shells 61 are connected to the edge of the module top plate 1. The side of the beam formwork shell 61 facing the inside of the module serves as the inner surface of the module. The beam formwork shell 61 is provided with mounting holes. After the beam formwork shell 61 is spliced with the beam formwork shells 61 of the adjacent box-type modules to form a beam formwork, the mounting holes correspond to the mounting holes opened on the beam formwork shells 61 of the adjacent box-type modules. The tension bolts 63 can pass through the two mounting holes in sequence and be fastened to the beam formwork by tension nuts. The beam formwork shell 61 configured in this way, after the beam formwork shell 61 is spliced with the beam formwork shells 61 of the adjacent box-type modules to form a beam formwork, can form a tension connection between the two formwork shells of the beam formwork, form lateral stress between the two formwork shells of the beam formwork, and prevent the beam formwork shell 61 from deformation or cracking during subsequent construction.

[0099] Preferably, a protrusion 64 is provided on the side of the beam formwork 61 facing the outside of the module at a position corresponding to the mounting hole, and the mounting hole is provided through the protrusion 64. In this way, the structural strength of the beam formwork 61 is improved and the connection between the tension bolt 63 and the tension nut is stabilized.

[0100] The thickness of the beam formwork shell 61 is within 30 mm.

[0101] Example 2

[0102] like Figures 12 to 16 As shown, based on the concrete box-type modules provided in Example 1, this embodiment provides a concrete modular building formed by splicing the concrete box-type modules provided in Example 1.

[0103] The concrete modular building includes at least two vertically connected concrete module layers, each concrete module layer includes at least two transversely spliced concrete box modules, a beam form and a shear wall form are formed between the two transversely spliced concrete box modules, the shear wall formwork in the upper concrete module layer corresponds to the shear wall formwork in the lower concrete module layer, and the upper shear wall formwork and the lower shear wall formwork in corresponding positions are overlapped by steel bars.

[0104] The beam formwork and shear wall formwork are used to pour concrete, and the modules are horizontally connected by cast-in-place beams and cast-in-place composite floor slabs.

[0105] Specifically, the L-shaped shear wall formwork in the upper concrete module layer corresponds to the position of the L-shaped shear wall formwork in the lower concrete module layer, and the T-shaped shear wall formwork in the upper concrete module layer corresponds to the position of the T-shaped shear wall formwork in the lower concrete module layer.

[0106] In the upper L-shaped shear wall formwork and the lower L-shaped shear wall formwork corresponding to the positions, spiral stirrups 71 are vertically inserted into the first edge steel bar group 27 and the second edge steel bar group 28 of the lower L-shaped shear wall formwork, and the spiral stirrups 71 are fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28. The spiral stirrups 71 extend upward from one end of the lower L-shaped shear wall formwork and are inserted into the first edge steel bar group 27 and the second edge steel bar group 28 of the upper L-shaped shear wall formwork; the first edge steel bar group 27 and the second edge steel bar group 28 of the lower L-shaped shear wall formwork are fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28 of the upper L-shaped shear wall formwork. The vertical bars at both ends of the truss 24 are inserted upward into the upper L-shaped shear wall formwork; the connecting steel bar 72 is vertically inserted into the first steel bar group 29 of the lower L-shaped shear wall formwork, the first end of the connecting steel bar 72 is fixedly connected to the first steel bar group 29, and the second end of the connecting steel bar 72 extends upward from the lower L-shaped shear wall formwork and is inserted into the first steel bar group 29 of the upper L-shaped shear wall formwork, and the second end of the connecting steel bar 72 has a screw sleeve 73 for threaded connection to the first end of the connecting steel bar 72 vertically inserted into the upper L-shaped shear wall formwork.

[0107] In the upper and lower T-shaped shear wall forms corresponding to the positions, spiral stirrups 71 are vertically inserted into the first edge steel bar group 27 and the second edge steel bar group 28 of the lower T-shaped shear wall formwork, and the spiral stirrups 71 are fixedly connected to the first edge steel bar group 27 and the second edge steel bar group 28. The spiral stirrups 71 extend upward from one end of the lower T-shaped shear wall formwork and are inserted into the first edge steel bar group 27 and the second edge steel bar group 28 of the upper T-shaped shear wall formwork; both ends of the third truss 44 of the lower T-shaped shear wall formwork The vertical reinforcement is inserted upward into the upper T-shaped shear wall formwork; the connecting steel bars 72 are vertically inserted into the second steel bar group and the third steel bar group of the lower T-shaped shear wall formwork respectively, the first end of the connecting steel bar 72 is fixedly connected to the second steel bar group and the third steel bar group, the second end of the connecting steel bar 72 extends upward from the lower L-shaped shear wall formwork and is inserted into the second steel bar group and the third steel bar group of the upper L-shaped shear wall formwork, and the second end of the connecting steel bar 72 has a screw sleeve 73 for threaded connection to the first end of the connecting steel bar 72 vertically inserted into the upper L-shaped shear wall formwork.

[0108] The above arrangement makes the connection between the upper and lower concrete module layers more stable.

[0109] Example 3

[0110] This embodiment provides a method for producing a concrete box-type module as described in Example 1, comprising the following steps:

[0111] Step S1: Install the first prefabricated wall and the second prefabricated wall on the first and second opposite sides of the mold in the module, respectively, with the first end of the first prefabricated wall corresponding to the first end of the second prefabricated wall, and the second end of the first prefabricated wall corresponding to the second end of the second prefabricated wall.

[0112] Step S2: Install the first steel cage on the third side of the mold inside the module and locate it between the first prefabricated wall and the second prefabricated wall, the first end of the first prefabricated wall cooperates with the first end of the first steel cage to form a steel overlap structure, and the first end of the second prefabricated wall cooperates with the second end of the first steel cage to form a steel overlap structure; install the second steel cage on the fourth side of the mold inside the module and locate it between the first prefabricated wall and the second prefabricated wall, the second end of the first prefabricated wall cooperates with the first end of the second steel cage to form a steel overlap structure, and the second end of the second prefabricated wall cooperates with the second end of the second steel cage to form a steel overlap structure.

[0113] Step S3: Install the prefabricated module top plate on the top of the mold inside the module. The prefabricated module top plate is located in the enclosed area of the first prefabricated wall, the second prefabricated wall, the first steel cage and the second steel cage. The top of the first prefabricated wall, the top of the second prefabricated wall, the top of the first steel cage and the top of the second steel cage respectively cooperate with the edge of the prefabricated module top plate corresponding to their positions to form a steel bar lap structure.

[0114] Step S4: Install the module outer mold at the position corresponding to the first steel cage, the second steel cage, and the steel overlap structure to form a first pouring cavity; pour concrete into the first pouring cavity to form a first post-cast wall at the first steel cage, and a second post-cast wall at the second steel cage, and connect the prefabricated module top plate with the first prefabricated wall, the second prefabricated wall, the first post-cast wall, and the second post-cast wall.

[0115] Step S5: Install the steel bar structure at the bottom of the mold inside the module. The bottom of the first prefabricated wall, the bottom of the second prefabricated wall, the bottom of the first steel cage, and the bottom of the second steel cage are respectively matched with the steel bar structures corresponding to their positions to form a steel bar lap structure.

[0116] Step S6: Install the module outer mold at the position corresponding to the steel bar overlap structure to form a second pouring cavity; pour concrete into the second pouring cavity to obtain a concrete box module.

[0117] It should be noted that the inner mold of the module refers to the mold used to match the inner shape and structure of the concrete box module, and the outer mold of the module refers to the mold used to match the outer shape and structure of the concrete box module.

[0118] The production method of concrete box modules as described above has low requirements for the module mold. There is no need to design the mold to completely match the shape and size of the module, which makes the shape and structure of the mold simpler, improves the applicability of the mold, and thus improves the utilization rate of the mold, allowing the mold to be applied to multiple projects and reducing costs.

[0119] Preferably, before step S1, the process also includes the production process of the L-shaped shear wall formwork, such as Figure 8 As shown in the figure, the production process of L-shaped shear wall formwork includes:

[0120] Step A01: Weld the first steel mesh and the second steel mesh respectively, connect the two ends of the first steel mesh to the first edge steel bar group and the second edge steel bar group respectively, connect the first end of the first truss to the first steel mesh, and connect the first end of the second truss to the second steel mesh; pour concrete into the first formwork, the second formwork, and the third formwork respectively.

[0121] Among them, the first formwork platform corresponds to the first straight portion, the second formwork platform corresponds to the second formwork shell of the L-shaped shear wall, and the third formwork platform corresponds to the second straight portion.

[0122] Wherein, step A01 may further include: welding a plurality of supporting steel plates to a steel mesh to form a supporting structure, installing the supporting structure in the second formwork, and pouring concrete into the second formwork.

[0123] Step A02: Before the concrete in the first formwork solidifies, the first end of the first truss is pressed into the concrete, and the first steel mesh is positioned above the concrete. After curing and demolding, a first prefabricated component is formed. Before the concrete in the second formwork solidifies, the first end of the second truss is pressed into the concrete, and the second steel mesh is positioned above the concrete. After curing and demolding, a second prefabricated component is formed. Before the concrete in the third formwork solidifies, the first steel bar group is pressed into the concrete. After curing and demolding, a third prefabricated component is formed.

[0124] Among them, step A02 may also include: before the concrete in the first formwork is solidified, pressing the tension bars of the first edge steel bar group and the second edge steel bar group into the concrete, and the stirrups of the first edge steel bar group and the second edge steel bar group are located above the concrete.

[0125] Wherein, step A02 may further include: before the concrete in the third formwork is solidified, pressing the tension bars of the first reinforcement group into the concrete, with the stirrups of the first reinforcement group being located above the concrete.

[0126] Step A03: Connect the first end of the second straight portion with the second end of the first straight portion to form an L-shape, arrange the first prefabricated component and the second prefabricated component face to face, connect the second end of the first truss with the second steel mesh, and connect the two ends of the second steel mesh with the first edge steel bar group and the second edge steel bar group respectively to obtain an L-shaped shear wall formwork.

[0127] Wherein, step A03 may further include: connecting the T-shaped mounting bolt and the mounting nut.

[0128] Among them, step A03 can also include: the stirrups extending from the first straight part of the first edge steel bar group and the stirrups extending from the second straight part of the first steel bar group are staggered and overlapped to form an overlapping part, the wall longitudinal reinforcement is inserted into the overlapping part, and the second steel bar group and the first steel bar group are fixedly connected to the wall longitudinal reinforcement.

[0129] In this way, during the production process of the first prefabricated component and the second prefabricated component, the first internal steel bar group can be automatically tied or welded, which greatly reduces the amount of steel bar tying and welding in on-site construction and greatly improves production efficiency.

[0130] Preferably, before step S1, the production process of the first prefabricated wall is also included. The production process of the first prefabricated wall occurs after the production process of the L-shaped shear wall formwork. The production process of the first prefabricated wall includes: connecting the L-shaped shear wall formwork and the partition wall formwork, and separating the L-shaped shear wall mold cavity and the partition wall mold cavity, pouring concrete into the partition wall mold cavity, and forming the first prefabricated wall after curing and demoulding.

[0131] Preferably, before step S1, the process further includes the production process of the first formwork of the T-shaped shear wall and the second formwork of the T-shaped shear wall. The production process of the first formwork of the T-shaped shear wall and the second formwork of the T-shaped shear wall includes:

[0132] Step B01: Weld the third and fourth steel mesh sheets separately, connect the first edge steel bar group and the second edge steel bar group to the two ends of the third steel mesh respectively, connect the first end of the third truss to the third steel mesh, and connect the first end of the fourth truss to the fourth steel mesh; pour concrete into the fourth, fifth, sixth, and seventh formwork platforms respectively.

[0133] The fourth mold platform corresponds to the third straight portion, the fifth mold platform corresponds to the fifth straight portion, the sixth mold platform corresponds to the fourth straight portion, and the seventh mold platform corresponds to the sixth straight portion.

[0134] Wherein, step B01 may further include: welding a plurality of supporting steel plates to a steel mesh to form a supporting structure, installing the supporting structure in the fourth formwork platform, and then pouring concrete into the second formwork platform.

[0135] Step B02: Before the concrete in the fourth formwork solidifies, the first end of the third truss is pressed into the concrete, and the third steel mesh is located above the concrete. After curing and demolding, a first wall formwork is formed. Before the concrete in the fifth formwork solidifies, the first end of the fourth truss is pressed into the concrete, and the fourth steel mesh is located above the concrete. After curing and demolding, a second wall formwork is formed. Before the concrete in the sixth formwork solidifies, the tension bars of the second steel bar group are pressed into the concrete, and the stirrups of the second steel bar group are located above the concrete. After curing and demolding, a third wall formwork is formed. Before the concrete in the seventh formwork solidifies, the tension bars of the third steel bar group are pressed into the concrete, and the stirrups of the third steel bar group are located above the concrete. After curing and demolding, a fourth wall formwork is formed.

[0136] Wherein, step B02 may further include: before the concrete in the fourth formwork is solidified, pressing the tension bars of the first edge steel bar group and the second edge steel bar group into the concrete, and positioning the stirrups of the first edge steel bar group and the second edge steel bar group above the concrete.

[0137] Step B03: Connect the second end of the first straight portion and the first end of the second straight portion to form an L-shape to obtain a first formwork of a T-shaped shear wall; connect the second end of the third straight portion and the first end of the fourth straight portion to form an L-shape to obtain a second formwork of a T-shaped shear wall.

[0138] In this way, during the production process of the first wall formwork and the second wall formwork, the second internal steel bar group can be automatically tied or welded, which greatly reduces the amount of steel bar tying and welding in on-site construction and greatly improves production efficiency.

[0139] Before step S1, the production process of the second prefabricated wall is also included. The production process of the second prefabricated wall occurs after the production process of the first formwork of the T-shaped shear wall and the second formwork of the T-shaped shear wall. The production process of the second prefabricated wall includes: connecting the first formwork of the T-shaped shear wall and / or the second formwork of the T-shaped shear wall with the partition wall formwork, and separating the T-shaped shear wall formwork and the partition wall mold cavity, pouring concrete into the partition wall mold cavity, and forming the second prefabricated wall after curing and demoulding.

[0140] It should be noted that the beam mold of the partition wall is formed during the production process of the first prefabricated wall and the second prefabricated wall, the connection between the beam mold of the partition wall and the top plate of the prefabricated module is formed in step S4, and the beam mold of the first post-cast wall and the beam mold of the second post-cast wall are formed in step S4.

[0141] Example 4

[0142] This embodiment provides a construction method for a concrete modular building formed by splicing concrete box modules provided in Example 1, comprising the following steps:

[0143] Step 10: Assemble the concrete box modules in the transverse direction (ie, horizontal direction) to form the first layer of modules.

[0144] Step 11: insert a steel lap joint structure into the shear wall membrane cavity of the first layer module, with a first end of the steel lap joint structure inserted into the shear wall membrane cavity and a second end of the steel lap joint structure extending upward out of the first layer module.

[0145] Specifically, the steel bar lap joint structure includes the spiral stirrups, connecting steel bars, etc. described in Example 2.

[0146] Step 12: Cast the first layer of modules.

[0147] Step 13: stack the second layer of modules on top of the first layer of modules, and insert the second end of the steel bar lap joint structure into the shear wall membrane cavity of the second layer of modules.

[0148] Step 14: Use the second layer module as the first layer module and repeat steps 11 to 13.

[0149] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shear wall formwork, characterized in that: It comprises a first shear wall formwork and a second shear wall formwork that are arranged opposite to each other; A first steel mesh sheet (23) for connecting two adjacent edge steel bar groups is laid on one side of the first shear wall formwork facing the second shear wall formwork; a first truss (24) extending in the height direction of the shear wall is fixedly connected to the first steel mesh sheet (23) at a position corresponding to the position between the two adjacent edge steel bar groups; a first end of the first truss (24) is inserted into the first shear wall formwork to fix the first steel mesh sheet (23) on the first shear wall formwork; and a second end of the first truss (24) is arranged toward the second shear wall formwork; A second steel mesh sheet (25) for connecting two adjacent edge steel bar groups is laid on one side of the second shear wall formwork facing the first shear wall formwork, and a second truss (26) extending in the height direction of the shear wall is fixedly connected to the second steel mesh sheet (25) at a position corresponding to the position between the two adjacent edge steel bar groups, and a first end of the second truss (26) is inserted into the second shear wall formwork to fix the second steel mesh sheet (25) on the second shear wall formwork, and a second end of the second truss (26) is arranged toward the first shear wall formwork.

2. The shear wall formwork according to claim 1, characterized in that: The first shear wall formwork is an L-shaped shear wall first formwork (21), and the second shear wall formwork is an L-shaped shear wall second formwork (22); or, the first shear wall formwork is a T-shaped shear wall first formwork (41), and the second shear wall formwork is a T-shaped shear wall second formwork (42).

3. The shear wall formwork according to claim 1, characterized in that: The second formwork of the shear wall is provided with a nut mounting groove (221) and a through hole (222) which are sequentially connected from the outside to the inside; a mounting nut (241) is fixedly provided on the second end of the first truss (24); and the mounting nut (241) corresponds to the position of the through hole (222); The screw rod of the T-shaped mounting bolt (242) can pass through the through hole (222) and be threadedly connected with the mounting nut (241), and the head of the T-shaped mounting bolt (242) is accommodated in the nut mounting groove (221).

4. The shear wall formwork according to claim 3, characterized in that: The first truss (24) includes a first plane steel bar (243) extending along the height direction of the shear wall, a first truss vertical bar (244) and a first vertical bar (246); The first plane steel bar (243) is formed by continuously bending a steel bar to form a triangular waveform. The first plane steel bar (243) has a first end and a second end opposite to each other in the direction from the first shear wall formwork to the second shear wall formwork. The first plane steel bar (243) is arranged perpendicularly to the first steel mesh (23). The first end of the first plane steel bar (243) is fixedly connected to the first steel mesh (23) via a first truss vertical bar (244). The first end of the first plane steel bar (243) is bent and inserted into the first shear wall formwork. The second end of the first plane steel bar (243) is fixedly connected to the second steel mesh (25) via a second vertical bar. The first end of the supporting steel bar (245) extending from the first shear wall formwork toward the second shear wall formwork is bent and inserted into the first shear wall formwork, and the second end of the supporting steel bar (245) is fixedly connected to the mounting nut (241).

5. A concrete box module, characterized in that: The invention comprises a module bottom plate, a module top plate (1), a beam formwork shell (61), and a first prefabricated wall (2), a first post-cast wall (3), a second prefabricated wall (4), and a second post-cast wall (5) sequentially connected around the edge of the module top plate, wherein the first prefabricated wall (2) and the second prefabricated wall (4) are arranged relative to each other, and the first post-cast wall (3) and the second post-cast wall (5) are arranged relative to each other; The first prefabricated wall (2) and the second prefabricated wall (4) both comprise partition walls and shear wall formworks connected in sequence, the top of the shear wall formwork being connected to the edge of the module top plate (1), the top of the partition wall being connected to the edge of the module top plate (1) via the beam formwork (61), the top of the first post-cast wall (3) being connected to the edge of the module top plate (1), and the bottom of the second post-cast wall (5) being connected to the edge of the module top plate (1); the top of the shear wall formwork being connected to the edge of the module bottom plate, the bottom of the partition wall being connected to the edge of the module bottom plate, the bottom of the first post-cast wall (3) being connected to the edge of the module bottom plate, and the bottom of the second post-cast wall (5) being connected to the edge of the module bottom plate; When the first prefabricated wall (2) is a module exterior wall, the shear wall formwork in the first prefabricated wall (2) is the shear wall formwork as described in any one of claims 1 to 4; when the first prefabricated wall (2) is a module interior wall, the shear wall formwork in the first prefabricated wall (2) is the shear wall first formwork or the shear wall second formwork as described in any one of claims 1 to 4; When the second prefabricated wall (4) is a module exterior wall, the shear wall formwork in the second prefabricated wall (4) is the shear wall formwork as described in any one of claims 1 to 4; when the second prefabricated wall (4) is a module interior wall, the shear wall formwork in the second prefabricated wall (4) is the shear wall first formwork or the shear wall second formwork as described in any one of claims 1 to 4; The thickness of the beam formwork shell (61) is within 30 mm, and the thickness of the shear wall formwork shell is within 30 mm.

6. The concrete box module according to claim 5, characterized in that: When the first prefabricated wall (2) is a module exterior wall, the shear wall formwork in the first prefabricated wall (2) is an L-shaped shear wall formwork; when the first prefabricated wall (2) is a module interior wall, the shear wall formwork in the first prefabricated wall (2) is a T-shaped shear wall first formwork or a T-shaped shear wall second formwork; When the second prefabricated wall (4) is a module exterior wall, the shear wall formwork in the second prefabricated wall (4) is an L-shaped shear wall formwork; when the second prefabricated wall (4) is a module interior wall, the shear wall formwork in the second prefabricated wall (4) is a T-shaped shear wall first formwork or a T-shaped shear wall second formwork.

7. The concrete box module according to claim 5, characterized in that: The beam mold shell (61) is used to be spliced with the beam mold shell (61) of the adjacent box-type module to form a beam mold; The beam mold shell (61) is provided with a mounting hole. After the beam mold shell (61) and the beam mold shell (61) of the adjacent box-type module are spliced to form a beam mold, the mounting hole corresponds to the mounting hole position provided on the beam mold shell (61) of the adjacent box-type module. The tension bolt (63) can pass through the two mounting holes in sequence, and the tension bolt (63) is fastened to the beam mold by the tension nut.

8. The concrete box module according to claim 7, characterized in that: A protrusion (64) is provided on one side of the beam formwork shell (61) facing the outside of the module at a position corresponding to the mounting hole, and the mounting hole is provided through the protrusion (64).

9. A concrete modular building, characterized in that: The invention comprises at least two vertically connected concrete module layers, each concrete module layer comprising at least two transversely spliced concrete box modules according to any one of claims 5 to 8, wherein a beam form and a shear wall form according to any one of claims 1 to 4 are formed between the two transversely spliced concrete box modules; the shear wall formwork in the upper concrete module layer corresponds to the shear wall formwork in the lower concrete module layer, and the corresponding upper shear wall formwork and the lower shear wall formwork are overlapped by steel bars; The beam formwork and shear wall formwork are used to pour concrete, and the modules are horizontally connected by cast-in-place beams and cast-in-place composite floor slabs.

10. The concrete modular building according to claim 9, characterized in that In the upper shear wall formwork and the lower shear wall formwork corresponding to the position, Spiral stirrups (71) are vertically inserted into the first edge steel bar group (27) and the second edge steel bar group (28) of the lower shear wall formwork, respectively, and the spiral stirrups (71) are fixedly connected to the first edge steel bar group (27) and the second edge steel bar group (28). One end of the spiral stirrups (71) extends upward from the lower shear wall formwork and is inserted into the first edge steel bar group (27) and the second edge steel bar group (28) of the upper shear wall formwork.

Images