Modular building structure based on single-sided laminated wall

Abstract

The utility model discloses a modular building structure based on a single-sided laminated wall, which relates to the technical field of modular buildings and comprises a laminated shear wall, and a shear wall laminated layer is arranged in the laminated shear wall. A shear wall prefabricated layer is arranged on the inner side of the shear wall laminated layer, and a reinforced concrete formwork is arranged on the outer side of the shear wall laminated layer. Opposite-pull screw holes are formed in the shear wall laminated layer, the shear wall prefabricated layer and the reinforced concrete formwork in a penetrating mode, opposite-pull screws are arranged in the opposite-pull screw holes, and steel base plates and nuts are arranged at the inner side ends of the opposite-pull screws. According to the modular building structure based on the single-face laminated wall, through the arrangement of the truss steel bars, the edge component stirrups and the like, the shear wall prefabricated layer can be used as a part of the effective thickness of the shear wall to reliably participate in stress. The problem that a traditional module building structure occupies the usable area of the building is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of modular buildings, in particular to a modular building structure based on a single-sided laminated wall. Background Art

[0002] Modular building structures have been applied to some extent due to their advantages such as fast construction speed and labor saving. Currently, modular building structures are mainly used in hotels, dormitories and residences. The shear walls of traditional modular building structures use double-sided formwork prefabricated in factories as templates, and concrete is poured on the construction site to form a whole. Both double-sided formworks do not participate in the force and cannot be used as part of the shear wall. Even considering that the formwork has good flatness and the wall plastering can be omitted, it still occupies the usable area, so it is difficult to be widely promoted and used. Especially in residential buildings, the problem of less usable area seriously affects the application of modular building structures. In addition, since the formwork is not stressed and can only be used as a plastering layer with good flatness, the material waste is serious and the cost is high, which further limits the use of traditional modular building structures. In order to enable modular building structures to be better applied in residential buildings, it is necessary to solve the problem of occupying the usable area of traditional modular building structures.

[0003] Therefore, inventing a modular building structure that does not occupy the usable area, has reliable force connection, is convenient for manufacturing and installation is beneficial to improving its applicability in residential buildings, and is also beneficial to reducing costs and saving the construction period. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a modular building structure of a single-sided laminated wall with single-sided force, reliable connection, convenient manufacturing and convenient construction.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a modular building structure based on a single-sided laminated wall, including a laminated shear wall, wherein a shear wall laminated layer is arranged inside the laminated shear wall; a shear wall prefabricated layer is arranged on the inner side of the shear wall laminated layer, and a reinforced concrete formwork is arranged on the outer side of the shear wall laminated layer; through holes for tie bolts are arranged on the shear wall laminated layer, the shear wall prefabricated layer and the reinforced concrete formwork, tie bolts are arranged in the through holes for tie bolts, and a steel backing plate and a nut are arranged at the inner end of the tie bolts; a steel bar truss web member is arranged inside the shear wall laminated layer; a steel bar truss lower chord is arranged inside the shear wall prefabricated layer; a steel bar truss upper chord is arranged inside the reinforced concrete formwork; and the steel bar truss lower chord and the steel bar truss upper chord are both connected with the steel bar truss web member.

[0007] Optionally, a formwork steel bar mesh is further arranged inside the reinforced concrete formwork.

[0008] Optionally, the upper chord of the steel bar truss includes horizontal steel bars of the outer wall body and vertical steel bars of the outer wall body.

[0009] Optionally, the lower chord of the steel bar truss includes horizontal steel bars of the inner wall body and vertical steel bars of the inner wall body.

[0010] Optionally, when a wing wall is provided on one side of the composite shear wall at the corner position, a non-load-bearing exterior wall is provided on the other side of the composite shear wall at the corner position; edge member stirrups are provided inside the composite shear wall at the corner position, and longitudinal edge member bars are provided inside the edge member stirrups; an exterior wall formwork is provided on the outer side of the wing wall.

[0011] Optionally, the interior of the non-load-bearing exterior wall is precast concrete for the non-load-bearing exterior wall, and horizontal inner steel bars of the non-load-bearing exterior wall and vertical inner steel bars of the non-load-bearing exterior wall are provided on the inner side of the non-load-bearing exterior wall; vertical outer steel bars of the non-load-bearing exterior wall and horizontal outer steel bars of the non-load-bearing exterior wall are provided on the outer side of the non-load-bearing exterior wall.

[0012] Optionally, when wing walls are provided on both sides of the composite shear wall at the corner position, two edge member stirrups are provided inside the composite shear wall at the corner position, and longitudinal edge member bars are provided inside the edge member stirrups; an exterior wall formwork is provided on the outer side of the wing wall; closed connecting steel bars are provided inside the composite shear wall at the corner position, and the closed connecting steel bars are used to connect the two edge member stirrups.

[0013] Optionally, when splicing the upper and lower module shear walls, the combined layer of the composite shear wall and the roof slab is an integral structure; vertical lapping steel bars are arranged vertically inside the composite shear wall; floor slab lapping steel bars are arranged horizontally inside the combined layer of the roof slab; roof top bars are arranged in the upper part of the combined layer of the roof slab; a floor slab is provided on the top surface of the combined layer of the roof slab, and a precast layer of the roof slab is provided on the bottom surface of the combined layer of the roof slab; roof bottom bars are arranged inside the precast layer of the roof slab.

[0014] Optionally, when the modules with openings are spliced left and right, a roof slab composite layer is provided on the top of the composite beam; the composite beam includes composite beam concrete; composite beam stirrups are provided between the composite beam and the roof slab composite layer, and longitudinal top bars of the composite beam and longitudinal bottom bars of the composite beam are provided inside the composite beam stirrups; roof top bars are arranged in the upper part of the roof slab composite layer; a precast layer of the roof slab is provided at the bottom of the roof slab composite layer; roof bottom bars are arranged inside the precast layer of the roof slab; longitudinal top bars of the composite beam are provided at the bottom of the roof slab composite layer; a reinforced concrete formwork shell is provided on the outer side of the composite beam; a formwork steel bar mesh is arranged inside the reinforced concrete formwork shell; a cavity is provided between the composite beam and the reinforced concrete formwork shell, a PE rod is provided at the bottom of the cavity, and a waterproof rubber strip is provided for sealing.

[0015] Optionally, a horizontally adjustable strut system is provided between the reinforced concrete formwork shells or between the precast shear wall layers. The horizontally adjustable strut system includes steel beams or square timbers, channel steels, support struts, and adjusting rods. The steel beam or square timber is disposed on the reinforced concrete formwork shell or the precast shear wall layer. The channel steel is disposed on the steel beam or square timber. One end of the support strut is connected to the channel steel, and an internal thread is provided at the other end of the support strut. Reverse threads are respectively provided at both ends of the adjusting rod. By rotating the adjusting rod, the adjusting rod is inserted into the support strut to adjust the length of the horizontally adjustable strut system.

[0016] Optionally, an inclined adjustable support system is provided between the reinforced concrete formwork shell and the precast shear wall layer. The inclined adjustable support system includes a screw rod, a steel beam or square timber, a channel steel, a support strut, an adjusting rod, and a fastening nut. The upper end of the support strut is hingedly connected to a first steel backing plate, and the lower end of the support strut is hingedly connected to a second steel backing plate. Holes through which the screw rod can pass are provided on the channel steel, the steel beam or square timber, the first steel backing plate, and the second steel backing plate. And embedded nuts are provided inside the reinforced concrete formwork shell or the precast shear wall layer and the floor slab at corresponding positions. Both ends of the adjusting rod are respectively connected to one end of a support strut, and the other end of the support strut is respectively connected to the embedded nut through the screw rod. The fastening nut is disposed on the screw rod to fix the support strut.

[0017] The present utility model has achieved the following technical effects compared with the prior art:

[0018] Based on the modular building structure of a single-sided composite wall, the present utility model can realize that the precast shear wall layer participates in the force reliably as a part of the effective thickness of the shear wall by arranging forms such as truss bars and edge member stirrups. It solves the problem that the traditional modular building structure occupies the building usable area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a top view structural schematic diagram of the wall body in the modular building structure based on a single-sided composite wall of the present utility model;

[0021] Figure 2 It is a side view structural schematic diagram of the wall body in the modular building structure based on a single-sided composite wall of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the composite shear wall in the modular building structure based on the single-sided composite wall when there is only one wing wall at the corner position;

[0023] Figure 4 This is a schematic structural diagram of the composite shear wall in the modular building structure based on the single-sided composite wall when there are wing walls on both sides at the corner position;

[0024] Figure 5 This is a schematic structural diagram of the splicing of the upper and lower module shear walls in the modular building structure based on the single-sided composite wall;

[0025] Figure 6 This is a schematic structural diagram of the left-right splicing of the modules with openings in the modular building structure based on the single-sided composite wall;

[0026] Figure 7 This is a schematic structural diagram of the horizontal adjustable strut system in the modular building structure based on the single-sided composite wall;

[0027] Figure 8 is Figure 7 the schematic A-A sectional view of

[0028] Figure 9 This is a schematic structural diagram of the inclined adjustable support system in the modular building structure based on the single-sided composite wall;

[0029] Figure 10 is Figure 7 the schematic B-B sectional view of

[0030] Explanation of reference numerals:

[0031] 1. Horizontal reinforcement bars of the outer wall; 2. Vertical reinforcement bars of the outer wall; 3. Composite layer of shear wall; 4. Upper chord of steel bar truss; 5. Web members of steel bar truss; 6. Steel bar mesh of formwork; 7. Reinforced concrete formwork; 8. Tie rod; 9. Tie rod hole; 10. Nut; 11. Steel backing plate; 12. Horizontal reinforcement bars of the inner wall; 13. Vertical reinforcement bars of the inner wall; 14. Prefabricated layer of shear wall; 15. Lower chord of steel bar truss; 16. Composite shear wall; 17. Inner horizontal reinforcement bars of non-load-bearing exterior wall; 18. Inner vertical reinforcement bars of non-load-bearing exterior wall; 19. Outer vertical reinforcement bars of non-load-bearing exterior wall; 20. Outer horizontal reinforcement bars of non-load-bearing exterior wall; 21. Prefabricated concrete of non-load-bearing exterior wall; 22. Non-load-bearing exterior wall; 23. Additional anti-cracking reinforcement bars; 24. Stirrups of edge member; 25. Longitudinal reinforcement bars of edge member; 26. Formwork of exterior wall; 27. Vertical reinforcement bars of wall body; 28. Horizontal reinforcement bars of wall body; 29. Closed connecting reinforcement bars; 30. Top reinforcement bars of roof slab; 31. Floor slab; 32. Prefabricated layer of roof slab; 33. Bottom reinforcement bars of roof slab; 34. Vertical lapping reinforcement bars; 35. Lapping reinforcement bars of floor slab; 38. Composite layer of roof slab; 41. Additional bottom reinforcement bars of roof slab; 42. Top longitudinal reinforcement bars of composite beam; 43. Cavity; 44. PE rod; 45. Sealing with waterproof rubber strip; 46. Composite beam; 47. Concrete of composite beam; 48. Stirrups of composite beam; 49. Bottom longitudinal reinforcement bars of composite beam; 50. Roof slab; 51. Steel beam or square timber; 52. Support rod; 53. Channel steel; 54. Adjusting rod; 55. Embedded nut; 56. First steel backing plate; 57. Fastening nut; 58. Screw rod; 59. Second steel backing plate. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0034] Embodiment 1:

[0035] As Figure 1 and 2As shown in the figure, this embodiment provides a modular building structure based on a single-sided composite wall, including a composite shear wall 16, in which a shear wall composite layer 3 is provided; a shear wall precast layer 14 is provided on the inner side of the shear wall composite layer 3, and a reinforced concrete formwork 7 is provided on the outer side of the shear wall composite layer 3; through holes for tie bolts 9 are provided in the shear wall composite layer 3, the shear wall precast layer 14 and the reinforced concrete formwork 7, a tie bolt 8 is arranged in the through hole for tie bolts 9, and a steel backing plate 11 and a nut 10 are arranged at the inner end of the tie bolt 8; a steel bar truss web member 5 is arranged inside the shear wall composite layer 3; a steel bar truss lower chord 15 is arranged inside the shear wall precast layer 14; a steel bar truss upper chord 4 is arranged inside the reinforced concrete formwork 7; both the steel bar truss lower chord 15 and the steel bar truss upper chord 4 are connected to the steel bar truss web member 5. A formwork steel bar mesh 6 is also arranged inside the reinforced concrete formwork 7. The steel bar truss upper chord 4 includes a horizontal outer wall body steel bar 1 and a vertical outer wall body steel bar 2. The steel bar truss lower chord 15 includes a horizontal inner wall body steel bar 12 and a vertical inner wall body steel bar 13.

[0036] More specifically, the composite shear wall 16 at the wall position is composed of a shear wall precast layer 14, a shear wall cast-in-place layer, and a reinforced concrete formwork. Concrete is poured into the shear wall cast-in-place layer. The shear wall precast layer 14 includes a precast layer concrete slab, and the vertical inner wall body steel bar 13, the horizontal inner wall body steel bar 12 and the lower chord steel bars of the steel bar truss embedded in the precast layer concrete slab are embedded in the precast layer concrete slab. The steel bar truss lower chord 15 and the horizontal inner wall body steel bar 12 are welded together integrally at the intersection position either completely or at certain intervals. The steel bar truss upper chord 4 is tightly connected to the horizontal outer wall body steel bar 1 by binding, welding or using a clamping member, and a vertical wall body steel bar 27 is tightly connected to the horizontal outer wall body steel bar 1. The reinforced concrete formwork is composed of a precast concrete formwork and a single-layer bidirectional steel bar mesh embedded in the precast concrete formwork. The single-layer bidirectional steel bar mesh can be formed by processes such as welding or binding. Since the steel bar truss can reliably and tightly connect the precast layer concrete slab and the shear wall cast-in-place layer concrete together to form a whole after pouring the concrete of the shear wall cast-in-place layer, the precast layer concrete slab can be regarded as a part of the shear wall to participate in the overall force.

[0037] The precast layer 14 of the shear wall and the reinforced concrete formwork belong to different modules on the left and right sides respectively. To bear the pressure during the pouring of the concrete of the shear wall composite layer 3 during construction, the tension bolts 8 are used to tightly connect the precast layer 14 of the shear wall and the reinforced concrete formwork. There is a sleeve outside the tension bolt 8 with an inner diameter slightly larger than that of the tension bolt 8. The sleeve can be made of materials such as plastic or steel to ensure that the concrete of the shear wall composite layer 3 does not directly contact the tension bolt 8, and the tension bolt 8 can be withdrawn after the concrete is poured. Holes for the tension bolt 8 and the sleeve to pass through are respectively formed in the precast concrete slab and the precast concrete formwork at certain horizontal and vertical intervals. After the tension bolt 8 and the sleeve pass through the holes, steel backing plates 11 are placed and the nuts are tightened to complete the installation of the module wall body before pouring the concrete of the shear wall composite layer 3.

[0038] Embodiment 2:

[0039] As Figure 3 shown, this embodiment is an improved embodiment based on Embodiment 1. When there is a wing wall on one side of the corner position of the composite shear wall 16, a non-load-bearing exterior wall 22 is provided on the other side of the corner position of the composite shear wall 16; an edge member stirrup 24 is provided inside the corner position of the composite shear wall 16, and an edge member longitudinal bar 25 is provided inside the edge member stirrup 24; an exterior wall formwork 26 is provided on the outer side of the wing wall. The inside of the non-load-bearing exterior wall 22 is non-load-bearing exterior wall precast concrete 21, and a non-load-bearing exterior wall inner horizontal bar 17 and a non-load-bearing exterior wall inner vertical bar 18 are provided on the inner side of the non-load-bearing exterior wall 22; a non-load-bearing exterior wall outer vertical bar 19 and a non-load-bearing exterior wall outer horizontal bar 20 are provided on the outer side of the non-load-bearing exterior wall 22.

[0040] In this specific embodiment, concrete is poured into the cast-in-place layer of the shear wall of the right module. The precast layer 14 of the shear wall includes a precast concrete slab, in which an inner wall body vertical bar 13, an inner wall body horizontal bar 12, an edge member stirrup 24 buried at the corner position, and a steel bar truss with a lower chord bar buried outside the corner position are embedded. The edge member longitudinal bar 25 and the edge member stirrup 24 are integrally formed by binding or welding. The number of the edge member longitudinal bars 25 can be increased or decreased according to actual requirements. The wall body outer horizontal bar and the wall body inner horizontal bar overlap with the edge member stirrup 24 for a certain distance to achieve lap force transfer. Similar to the structure of the aforementioned wall body part, the lower chord 15 of the steel bar truss and the inner wall body horizontal bar 12 are integrally formed by welding all or at certain intervals at the intersection position. The upper chord 4 of the steel bar truss is tightly connected to the outer wall body horizontal bar 1 by binding, welding or using clamping parts, and a wall body vertical bar 27 is tightly connected to the outer wall body horizontal bar 1.

[0041] To bear the pressure during the casting of the concrete for the shear wall composite layer 3 during construction, the tension tie rod 8 is used to tightly connect the precast layer 14 of the shear wall and the external wall formwork 26. There is a sleeve outside the tension tie rod 8 with an inner diameter slightly larger than that of the tension tie rod 8. The sleeve can be made of materials such as plastic or steel to ensure that the concrete of the shear wall composite layer 3 does not come into direct contact with the tension tie rod 8, and the tension tie rod 8 can be withdrawn after the concrete is poured. Holes for the tension tie rod 8 and the sleeve to pass through are respectively provided in the precast layer concrete slab and the external wall formwork 26 at certain horizontal and vertical intervals. Before casting the concrete of the shear wall composite layer 3, place the steel backing plate 11 and lock the nut after passing the tension tie rod 8 and the sleeve through the holes. This work can be completed in the factory or on-site.

[0042] The left module includes a reinforced concrete formwork shell and a non-load-bearing external wall 22. The reinforced concrete formwork shell consists of a precast concrete formwork shell, and a single-layer bidirectional steel bar mesh embedded in the precast concrete formwork shell. The single-layer bidirectional steel bar mesh can be formed by processes such as welding or binding. The non-load-bearing external wall 22 is composed of non-load-bearing external wall inner horizontal bars 17, non-load-bearing external wall inner vertical bars 18, non-load-bearing external wall outer horizontal bars 20, non-load-bearing external wall outer vertical bars 19, anti-cracking additional bars 23 and non-load-bearing external wall precast concrete 21. The non-load-bearing external wall inner horizontal bars 17 and the non-load-bearing external wall inner vertical bars 18 can be connected into a whole by welding or binding. The non-load-bearing external wall outer horizontal bars 20 and the non-load-bearing external wall outer vertical bars 19 can be connected into a whole by welding or binding. The non-load-bearing external wall outer horizontal bars 20 bend and anchor into the reinforced concrete formwork shell at the junction with the reinforced concrete formwork shell, and at the same time, the horizontal steel bars of the formwork shell steel bar mesh also bend and anchor into the non-load-bearing external wall 22. To ensure that it will not crack at this position during transportation, hoisting and construction. Specifically, anti-cracking additional bars 23 are provided on the outside of the non-load-bearing external wall 22. After the left module and the right module are in place, the concrete of the shear wall composite layer 3 is cast, and the anti-cracking additional bars 23 can effectively prevent cracks from appearing between the non-load-bearing external wall 22 and the concrete of the shear wall composite layer 3.

[0043] Embodiment Three:

[0044] As Figure 4 shown, this embodiment is an improved embodiment based on Embodiment Two. When there are wing walls on both sides of the composite shear wall 16 at the corner position, two boundary element stirrups 24 are provided inside the composite shear wall 16 at the corner position, and boundary element longitudinal bars 25 are provided inside the boundary element stirrups 24; an external wall formwork 26 is provided on the outside of the wing wall; a closed connecting bar 29 is provided inside the composite shear wall 16 at the corner position, and the closed connecting bar 29 is used to connect the two boundary element stirrups 24.

[0045] In this specific embodiment, the structure of the right module is basically the same as that in the second embodiment. The difference is that when there are wing walls on both sides, the exterior wall formwork 26 is installed after the on-site hoisting and positioning of the right module and the left module, and the tension bolts 8 and sleeves are inserted, and the steel backing plates 11 and nuts 10 are installed to complete the fastening of the formwork.

[0046] The left module is composed of a shear wall precast layer 14 and a reinforced concrete formwork shell. The reinforced concrete formwork shell consists of a precast concrete formwork shell and a single-layer bidirectional steel bar mesh embedded in the precast concrete formwork shell. The single-layer bidirectional steel bar mesh can be formed by processes such as welding or binding. The construction method of the shear wall precast layer 14 is basically the same as that of the right module. The difference is that the horizontal wall body steel bars 12 on the inner side of the shear wall precast layer 14 are bent and anchored into the reinforced concrete formwork shell at the junction with the reinforced concrete formwork shell, and at the same time, the horizontal steel bars of the formwork shell steel bar mesh are also bent and anchored into the shear wall precast layer 14 to ensure that it will not crack at this position during transportation, hoisting, and construction. Specifically, after the left module and the right module are in place, a certain number of closed connecting steel bars 29 need to be placed at a certain distance along the height direction at the splicing position to achieve the lap joint of the shear walls of the left module and the right module, and this connection can ensure that the shear walls on both sides of the splicing position share the force together. After the closed connecting steel bars 29 are in place, a certain number of edge member longitudinal steel bars 25 need to be inserted at the construction site and tied to the edge member stirrups 24 and the closed connecting steel bars 29 to prevent the steel bars from shifting during the pouring of the concrete of the shear wall composite layer 3. Similarly, before pouring the concrete of the shear wall composite layer 3, the exterior wall formwork 26 needs to be connected and fixed to the shear wall precast layer 14 with pre-reserved corresponding tension bolt holes at the construction site using tension bolts 8, steel backing plates 11, and nuts 10.

[0047] Embodiment 4:

[0048] As Figure 5 shown, this embodiment is an improved embodiment based on Embodiment 1. When the shear walls of the upper and lower layer modules are spliced, the composite shear wall 16 and the top plate bonding layer are an integral structure; vertical lapping steel bars 34 are arranged vertically in the composite shear wall 16; floor lapping steel bars 35 are arranged horizontally in the top plate bonding layer; top plate top steel bars 30 are arranged in the upper part of the top plate bonding layer; a bottom plate 31 is arranged on the top surface of the top plate bonding layer, and a top plate precast layer 32 is arranged on the bottom surface of the top plate bonding layer; top plate bottom steel bars 33 are arranged in the top plate precast layer 32.

[0049] In this specific embodiment, the lower left module includes a reinforced concrete formwork 7 and a top plate; the lower right module includes a precast shear wall layer 14 and a top plate; the upper left module includes a bottom plate 31 and a reinforced concrete formwork 7; the upper right module includes a bottom plate 31 and a precast shear wall layer 14. The longitudinal steel bars of the formwork steel mesh in the lower left module are bent and anchored inward to the top plate at the position where it meets the top plate to ensure the stiffness at this position. Similarly, the vertical steel bars 13 of the inner wall in the lower right module are bent and anchored inward to the top plate at the position where it meets the top plate to ensure the stiffness at this position. The vertical steel bars 2 of the outer wall in the lower right module extend to near the top elevation of the top plate. The bottom steel bars in the top plates of the lower left and lower right modules extend into the middle of the shear wall on the shear wall side.

[0050] The steel mesh in the bottom plate 31 of the upper left module is bent and anchored inward to the reinforced concrete formwork at the position where it meets the reinforced concrete formwork. Similarly, the steel mesh in the bottom plate 31 of the upper right module is bent and anchored inward to the precast shear wall layer 14 at the position where it meets the precast shear wall layer 14. The vertical steel bars in the formwork steel mesh of the upper left module extend to near the bottom elevation of the bottom plate 31. The vertical steel bars 2 of the outer wall in the upper right module extend to near the bottom elevation of the bottom plate 31.

[0051] After the lower left and lower right modules are hoisted in place, the vertical lapped steel bars 34 are inserted into the shear wall composite layer 3 at a certain interval so that they overlap with the inner wall horizontal steel bars 12 and the outer wall horizontal steel bars 1 vertically by a certain length to meet the requirements of lap force transfer. Subsequently, the concrete of the shear wall composite layer 3 is poured to connect the lower left and lower right modules. Then, the top steel bars 30 of the top plate are placed and tied together, and the floor slab lapped steel bars 35 are set at the joint position. The two sides of this steel bar overlap with the top steel bars 30 of the top plate by a certain length respectively to achieve lap force transfer. After the floor slab lapped steel bars 35 and the top steel bars 30 of the top plate are tied, the concrete of the top plate composite layer 38 is poured. Subsequently, the upper left module and the upper right module are hoisted. The vertical lapped steel bars 34 overlap with the inner shear wall steel mesh and the outer shear wall steel mesh of the upper right module by a certain length to achieve lap force transfer.

[0052] Example Five:

[0053] As Figure 6As shown in the figure, this embodiment is an improved embodiment based on Embodiment 1. When the modules with openings are spliced left and right, a top plate composite layer 38 is provided on the top of the composite beam 46; the composite beam 46 includes composite beam concrete 47; a composite beam stirrup 48 is provided between the composite beam 46 and the top plate composite layer 38, and a top longitudinal bar 42 and a bottom longitudinal bar 49 of the composite beam are arranged inside the composite beam stirrup 48; top longitudinal bars 30 are arranged in the upper part of the top plate composite layer 38; a precast top plate layer 32 is provided at the bottom of the top plate composite layer 38; bottom longitudinal bars 33 of the top plate are arranged in the precast top plate layer 32; the top longitudinal bar 42 of the composite beam is provided at the bottom of the top plate composite layer 38; a reinforced concrete formwork shell 7 is provided on the outer side of the composite beam 46; a formwork reinforcement mesh 6 is arranged inside the reinforced concrete formwork shell 7; a cavity 43 is provided between the composite beam 46 and the reinforced concrete formwork shell 7, a PE rod 44 is provided at the bottom of the cavity 43, and a waterproof rubber strip 45 is provided for sealing.

[0054] In this specific embodiment, the left module includes a reinforced concrete formwork shell and a precast top plate layer 32; the right module includes a composite beam 46 and a top plate composite layer 38. The vertical steel bars of the formwork reinforcement mesh 6 in the left module are bent into the precast top plate layer 32 by a certain distance at the junction with the precast top plate layer 32 to ensure reliable connection at the junction and prevent cracking. The composite beam 46 of the right module is composed of a top longitudinal bar 42, a bottom longitudinal bar 49, a composite beam stirrup 48 and composite beam concrete 47 that integrally cast the former two in the factory. The bottom longitudinal bar 33 of the top plate in the precast top plate layer 32 of the right module extends into the beam end by a certain distance on one side of the beam to achieve the anchoring effect.

[0055] During construction, the left module and the right module are hoisted into place respectively. Since there is no cast-in-place area in the left module and the right module, in order to avoid manufacturing and installation errors, a cavity 43 is provided in the middle of the two modules to adjust the errors. A PE rod 44 is provided at the lower part of the cavity 43 and sealed with a waterproof rubber strip 45 to prevent the concrete from flowing out from this position when pouring the top plate composite layer 38. At the top of the precast top plate layer 32 of the left module, additional bottom bars 41 of the top plate are placed on site. The left side overlaps with the bottom longitudinal bar 33 of the same direction for a certain distance to achieve indirect lap force transmission. The right side extends into the composite beam stirrup 48 across the cavity 43 for a certain distance to achieve its own anchoring. After placing the additional top longitudinal bars 30 of the top plate that need to be added on site, the top plate composite layer 38 is poured to connect the left module and the right module into a whole and make them bear force together.

[0056] As described above, the connection methods of the left and right modules, the connection of the upper and lower modules, and the connection at the module openings are introduced, forming a modular building structure system based on a single-sided composite wall.

[0057] Embodiment Six:

[0058] As Figure 7 and 8As shown in the figure, in order to achieve the self - balance of internal forces when pouring the side - wall concrete of the module and reduce or avoid the use of tie bolts 58, this embodiment provides a mutual support between the reinforced concrete formwork or the precast layer of the shear wall through a horizontally adjustable strut system in the horizontal direction.

[0059] The horizontally adjustable strut system includes a steel beam or a wooden square 51, a channel steel 53, a support rod 52, and an adjusting rod 54. One end of the support rod 52 can be fixedly connected to the channel steel 53 by welding or other means. The other end of the support rod 52 is provided with internal threads, and the two ends of the adjusting rod 54 are respectively provided with reverse threads. By rotating the adjusting rod 54, the adjusting rod 54 can enter the support rod 52 to adjust the length of the horizontally adjustable strut system.

[0060] During installation, first lay a full - length steel beam or wooden square 51 along the horizontal direction of the wall. Then, snap the channel steel 53 of the horizontally adjustable strut system onto the steel beam or wooden square 51, and then tighten the adjusting rod 54 to clamp the channel steel 53 tightly against the steel beam or wooden square 51.

[0061] Embodiment Seven:

[0062] As Figure 9 and 10 shown, in order to achieve the self - balance of internal forces when pouring the side - wall concrete of the module and reduce or avoid the use of tie bolts 58, this embodiment provides an inclined adjustable support system to connect the reinforced concrete formwork or the precast layer of the shear wall to the floor slab.

[0063] The inclined adjustable support system includes a screw rod 58, a steel beam or a wooden square 51, a channel steel 53, a support rod 52, an adjusting rod 54, and a fastening nut 57. The upper end of the support rod 52 is hinged to the first steel backing plate 56, and the lower end of the support rod 52 is hinged to the second steel backing plate 59. The channel steel 53, the steel beam or wooden square 51, the first steel backing plate 56, and the second steel backing plate 59 are all provided with holes through which the screw rod 58 can pass, and embedded nuts 55 are provided inside the reinforced concrete formwork or the precast layer of the shear wall and the floor slab at corresponding positions. During installation, first screw the screw rod 58 into the embedded nut 55 in the reinforced concrete formwork or the precast layer of the shear wall, and then insert the steel beam or wooden square 51 and the channel steel 53 into the screw rod 58. Then, snap the first steel backing plate 56 onto the screw rod 58 and tighten the fastening nut 57 to complete the installation of the upper end of the inclined adjustable support system. Similarly, during the installation of the lower end, first screw the screw rod 58 into the embedded nut 55 in the floor slab, and then rotate the adjusting rod 54 to a suitable position so that the second steel backing plate 59 is snapped onto the screw rod 58 and tighten the fastening nut 57 to complete the installation of the lower end of the inclined adjustable support system.

[0064] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0065] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A modular building structure based on a single-sided laminated wall, characterized in that It includes a composite shear wall, and a shear wall composite layer is arranged inside the composite shear wall; a shear wall precast layer is arranged on the inner side of the shear wall composite layer, and a reinforced concrete formwork is arranged on the outer side of the shear wall composite layer; through holes for tie bolts are arranged on the shear wall composite layer, the shear wall precast layer and the reinforced concrete formwork, tie bolts are arranged in the through holes for tie bolts, and steel backing plates and nuts are arranged at the inner ends of the tie bolts; a steel truss web member is arranged inside the shear wall composite layer; a steel truss lower chord is arranged inside the shear wall precast layer; a steel truss upper chord is arranged inside the reinforced concrete formwork; both the steel truss lower chord and the steel truss upper chord are connected to the steel truss web member.

2. The modular building structure based on the single-sided laminated wall according to claim 1, wherein A formwork steel mesh is also arranged inside the reinforced concrete formwork.

3. The modular building structure based on a single-sided laminated wall according to claim 1, wherein The steel truss upper chord includes horizontal outer wall body steel bars and vertical outer wall body steel bars.

4. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, The steel truss lower chord includes horizontal inner wall body steel bars and vertical inner wall body steel bars.

5. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, When a wing wall is arranged on one side of the composite shear wall at the corner position, a non-load-bearing outer wall is arranged on the other side of the composite shear wall at the corner position; an edge member stirrup is arranged inside the composite shear wall at the corner position, and an edge member longitudinal bar is arranged inside the edge member stirrup; an outer wall formwork is arranged on the outer side of the wing wall; the inside of the non-load-bearing outer wall is non-load-bearing outer wall precast concrete, and horizontal inner non-load-bearing outer wall steel bars and vertical inner non-load-bearing outer wall steel bars are arranged on the inner side of the non-load-bearing outer wall; vertical outer non-load-bearing outer wall steel bars and horizontal outer non-load-bearing outer wall steel bars are arranged on the outer side of the non-load-bearing outer wall.

6. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, When wing walls are arranged on both sides of the composite shear wall at the corner position, two edge member stirrups are arranged inside the composite shear wall at the corner position, and an edge member longitudinal bar is arranged inside the edge member stirrup; an outer wall formwork is arranged on the outer side of the wing wall; a closed connecting bar is arranged inside the composite shear wall at the corner position, and the closed connecting bar is used to connect the two edge member stirrups.

7. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, When splicing the upper and lower module shear walls, the composite shear wall and the roof slab bonding layer are of an integral structure; vertical lapping bars are arranged vertically inside the composite shear wall; floor slab lapping bars are arranged horizontally inside the roof slab bonding layer; roof slab top bars are arranged at the upper part inside the roof slab bonding layer; a floor slab is arranged on the top surface of the roof slab bonding layer, and a roof slab precast layer is arranged on the bottom surface of the roof slab bonding layer; roof slab bottom bars are arranged inside the roof slab precast layer.

8. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, When the modules with openings are spliced left and right, a top slab composite layer is provided at the top of the composite beam; the composite beam includes composite beam concrete; composite beam stirrups are provided between the composite beam and the top slab composite layer, and top longitudinal bars and bottom longitudinal bars of the composite beam are arranged inside the composite beam stirrups; top bars of the top slab are arranged in the upper part of the top slab composite layer; a precast layer of the top slab is provided at the bottom of the top slab composite layer; bottom bars of the top slab are arranged in the precast layer of the top slab; top longitudinal bars of the composite beam are provided at the bottom of the top slab composite layer; a reinforced concrete formwork is provided outside the composite beam; a formwork steel mesh is arranged inside the reinforced concrete formwork; a cavity is provided between the composite beam and the reinforced concrete formwork, a PE rod is arranged at the bottom of the cavity, and a waterproof rubber strip is provided for plugging.

9. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, A horizontally adjustable strut system is provided between the reinforced concrete formworks or between the precast layers of the shear wall. The horizontally adjustable strut system includes a steel beam or a wooden square, a channel steel, a support rod and an adjusting rod; the steel beam or the wooden square is arranged on the reinforced concrete formwork or the precast layer of the shear wall; the channel steel is arranged on the steel beam or the wooden square; one end of the support rod is connected to the channel steel, internal threads are provided at the other end of the support rod, reverse threads are respectively provided at both ends of the adjusting rod, and by rotating the adjusting rod, the adjusting rod enters the support rod to adjust the length of the horizontally adjustable strut system.

10. The modular building structure based on a single-sided laminated wall according to claim 1, characterized in that, An inclined adjustable support system is provided between the reinforced concrete formwork and the precast layer of the shear wall. The inclined adjustable support system includes a screw rod, a steel beam or a wooden square, a channel steel, a support rod, an adjusting rod and a fastening nut; the upper end of the support rod is hinged to a first steel backing plate, and the lower end of the support rod is hinged to a second steel backing plate; holes for the screw rod to pass through are respectively provided on the channel steel, the steel beam or the wooden square, the first steel backing plate and the second steel backing plate, and embedded nuts are provided at corresponding positions inside the reinforced concrete formwork or the precast layer of the shear wall and the floor slab; both ends of the adjusting rod are respectively connected to one end of a support rod, the other end of the support rod is respectively connected to the embedded nut through the screw rod, and the fastening nut is arranged on the screw rod to fix the support rod.

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