Fully-installed integrated local cast-in-place box house

Abstract

The utility model provides a fully-installed integrated local cast-in-place box house which comprises a prefabricated upper floor slab, a prefabricated lower floor slab and a door and window structure and is characterized by further comprising prefabricated vertical connecting components, a thin-wall structure inner layer, anchoring steel bars, a thin-wall structure outer layer, cast-in-place walls, cast-in-place reinforcing beams, connecting supporting rods and drag hooks. The prefabricated vertical connecting component and the thin-wall structure inner layer are connected between the edge of the prefabricated upper floor slab and the edge of the prefabricated lower floor slab, so that the prefabricated vertical connecting component, the thin-wall structure inner layer, the prefabricated upper floor slab and the prefabricated lower floor slab jointly define a box type main body structure, and avoiding spaces for construction of cast-in-place reinforcing beams are reserved at the upper ends and the lower ends of the prefabricated vertical connecting component and the thin-wall structure inner layer. According to the utility model, the problems of low construction efficiency, poor splicing node quality and poor structural stability during the construction of the traditional box-type fabricated building are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated building construction, and specifically discloses a fully assembled integrated locally cast-in-place box house. Background Technique

[0002] At present, the construction of box prefabricated buildings usually includes the following steps: parameter design, factory processing of prefabricated box structures, building foundation construction, transporting prefabricated box structures to the site, on-site hoisting of prefabricated box structures, connecting and anchoring prefabricated box structures, connecting and installing water, electricity and pipelines, interface treatment, and building forming. However, there are the following problems and disadvantages:

[0003] (1) There are weak points in the installation and connection of box structures: Since the main load-bearing components of box prefabricated buildings are all processed in the factory and assembled on-site, the main structural load-bearing components such as wall columns and beams rely on late anchor bolts for connection, resulting in poor integrity of the building structure;

[0004] (2) The box structure is heavy and the space layout is limited: Since all box components of box prefabricated buildings are processed in the factory, all wall columns, beam plates have been cast and formed, and the transportation and hoisting weights are heavy, so a large space layout cannot be realized.

[0005] (3) The construction period is long: After using reserved components for assembly and then casting at the joints, the formwork support for the floor slab also needs to be completely erected, and various processes such as steel bar binding, water and electricity embedding, and concrete casting at the joints (or surface layer) cannot be omitted, resulting in a long construction period;

[0006] (4) Full decoration and assembly cannot be achieved: Since the assembly joints need docking and casting treatment, most steel components are concrete bare parts. Content of the Utility Model

[0007] In view of the above problems, the utility model provides a fully assembled integrated locally cast-in-place box house, which solves the problems of low construction efficiency, poor quality of assembly joints and poor structural stability in the construction of traditional box prefabricated buildings.

[0008] The utility model is realized through the following technical solutions.

[0009] A fully assembled integrated locally cast-in-place box house includes a precast upper floor slab, a precast lower floor slab, and a door and window structure. It is characterized in that it further includes: precast vertical connecting components, an inner thin-walled structure, anchor reinforcement, an outer thin-walled structure, a cast-in-place wall, a cast-in-place reinforcement beam, a connecting strut and a hook;

[0010] The prefabricated vertical connection member and the inner layer of the thin-walled structure are connected between the edges of the prefabricated upper floor slab and the prefabricated lower floor slab, so as to jointly enclose a box-shaped main structure with the prefabricated upper floor slab and the prefabricated lower floor slab. And construction avoidance spaces for the cast-in-place reinforcement beams are reserved at both the upper and lower ends of the prefabricated vertical connection member and the inner layer of the thin-walled structure; a door and window opening is reserved inside the prefabricated vertical connection member, and the door and window structure is installed in the door and window opening; the outer layer of the thin-walled structure is connected and fixed to the outside of the inner layer of the thin-walled structure through a connecting strut, so as to cooperate with the inner layer of the thin-walled structure to enclose a wall-beam cavity; the surfaces of the inner layer and the outer layer of the thin-walled structure on the side close to each other are rough surfaces, and hooks extending into the wall-beam cavity are embedded; the anchoring steel bars are reserved on one side of the outer circumference of the prefabricated upper floor slab, the prefabricated lower floor slab and on the left and right sides of the prefabricated vertical connection member, and the anchoring steel bars extend into the wall-beam cavity; the cast-in-place reinforcement beams are arranged at the top and bottom of the cast-in-place wall, and the cast-in-place reinforcement beams and the cast-in-place wall are integrally formed by casting concrete into the wall-beam cavity, so that the cast-in-place reinforcement beams and the cast-in-place wall are connected with the prefabricated upper floor slab, the prefabricated lower floor slab and the prefabricated vertical connection member through the reserved anchoring steel bars to form an integral structure.

[0011] Preferably, the thicknesses of the prefabricated upper floor slab and the prefabricated lower floor slab are 6 - 10 cm, and both are precast with C25 - C35 concrete and internally provided with steel bars with a diameter of 6 - 12 mm.

[0012] Preferably, the width of the prefabricated vertical connection member is 1.5 - 1.8 m, and a prefabricated vertical connection member is arranged every 4 - 5 m on each side of the box-shaped building structure. And when two or more prefabricated vertical connection members cannot be arranged at the above intervals on each side of the box-shaped building structure, only one prefabricated vertical connection member is arranged at the middle position of that side.

[0013] Preferably, the prefabricated vertical connection member is precast with C20 - C25 concrete and internally provided with steel bars with a diameter of 12 - 20 mm.

[0014] Preferably, the box house of the present utility model further includes a reinforcement beam steel cage arranged at the positions of the cast-in-place reinforcement beams at the top and bottom of the wall-beam cavity and tied and fixed through connecting struts.

[0015] Preferably, the inner layer and the outer layer of the thin-walled structure are assembled with standardized fiber cement boards. The thickness of the fiber cement board is 30 - 50 mm, and a fiber mesh and a steel mesh are internally provided.

[0016] Preferably, the box house of the present utility model further includes an inner wall decoration layer arranged on the indoor side surface of the inner layer of the thin-walled structure and an outer wall decoration layer arranged on the indoor side surface of the outer layer of the thin-walled structure.

[0017] Preferably, the inner wall decorative layer is constructed by painting, tiles or wall cloth, and the outer wall decorative layer is constructed by real paint or tiles.

[0018] Preferably, the hook is bent from a steel bar with a diameter of 4-6 mm, and the connecting strut is a steel bar with a diameter of 12-20 mm.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. It can realize the integrated assembly of decoration. In the utility model, the pipeline embedding can be completed when the box-type main structure is processed in the factory, and the decorative layer can be directly pre-attached to the inner surface and the outer surface of the thin-walled structure in the factory, thus realizing the integrated assembly of the decoration of the box room, and can greatly reduce the construction period of the subsequent decoration project of the box room.

[0021] 2. It can realize rapid construction. In the utility model, the box-type main structure can be prefabricated in the factory, and only the local in-situ casting structures, namely the in-situ casting reinforced beams and the in-situ casting walls, need to be constructed on-site. Moreover, the local in-situ casting structure construction directly uses the outer thin-walled structure and the inner thin-walled structure as templates, which can save the on-site template processing and installation and the processing and installation of the inner support frame body in the traditional construction, and at the same time, the template does not need to be disassembled, greatly saving the construction period, and thus can realize the rapid construction of the box room cluster building.

[0022] 3. It can overcome the problem that there are weak points in the main stress members of the traditional assembly structure. Since the main stress members of the traditional box room assembly structure are all processed in the factory and assembled on-site, and the main structural stress members such as wall columns and beams need to be connected by later anchor bolts, the overall building structure is poor. In the box-type main structure of the utility model, the precast upper floor slab, one side of the outer periphery of the precast lower floor slab and both sides of the precast vertical connecting member are reserved with anchoring steel bars. After the in-situ casting reinforced beam and the in-situ casting wall are poured, they can be connected with the precast upper floor slab, the precast lower floor slab and the precast vertical connecting member through the reserved anchoring steel bars to form an integral structure, thus overcoming the problem that there are weak points in the main stress members of the traditional box room assembly structure.

[0023] 4. It can improve the environmental compatibility of construction. Most of the construction waste in building construction comes from the packaging and tailings of masonry and decorative mechanical and electrical materials; the construction method of the utility model can realize the factory prefabrication of all decoration and mechanical and electrical embedding, which can greatly reduce the waste of decoration and mechanical and electrical materials and the generation of construction waste. Description of the Drawings

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the box-type main structure in the utility model;

[0025] Figure 2Schematic three-dimensional structure diagram of the box-type main structure in the present utility model when the inner layer of the thin-wall structure is omitted;

[0026] Figure 3 Schematic three-dimensional structure diagram of the box-type main structure in the present utility model after installing the outer layer of the thin-wall structure;

[0027] Figure 4 Top view of the box house in the present utility model;

[0028] Figure 5 is Figure 4 Cross-sectional view at A-A in;

[0029] Figure 6 is Figure 4 Cross-sectional view at B-B in;

[0030] Figure 7 is Figure 4 Cross-sectional view at C-C in;

[0031] Figure 8 is Figure 4 Cross-sectional view at D-D in;

[0032] Figure 9 is Figure 6 Enlarged schematic view at E in;

[0033] The meanings of the various markings in the above figures are as follows: precast upper floor slab 1, precast lower floor slab 2, precast vertical connecting member 3, inner layer of the thin-wall structure 4, anchor reinforcement 5, outer layer of the thin-wall structure 6, cast-in-place wall 7, cast-in-place reinforcement beam 8, connecting strut 9, hook 10, door and window structure 11, door and window opening 12, wall beam cavity 13, reinforcement beam reinforcement cage 14, inner wall decorative layer 15, outer wall decorative layer 16, sealing rubber strip 17, avoidance space 18, adjacent surface 19, box house 20. Detailed implementation manners

[0034] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosed content of the present utility model more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] The present utility model will be further described in detail below with reference to the accompanying drawings. Embodiment 1

[0037] For the fully assembled integrated locally cast-in-place box house, please refer to Figures 1 to 9 , which includes a precast upper floor slab 1, a precast lower floor slab 2, a door and window structure 11, precast vertical connecting members 3, a thin-walled structure inner layer 4, anchoring steel bars 5, a thin-walled structure outer layer 6, a cast-in-place wall 7, a cast-in-place reinforcing beam 8, a connecting strut 9, and a hook 10; wherein, the precast vertical connecting members 3 and the thin-walled structure inner layer 4 are connected between the edges of the precast upper floor slab 1 and the precast lower floor slab 2 to jointly enclose a box-shaped main structure with the precast upper floor slab 1 and the precast lower floor slab 2, and construction avoidance spaces for the cast-in-place reinforcing beam 8 are reserved at both the upper and lower ends of the precast vertical connecting members 3 and the thin-walled structure inner layer 4; a door and window opening 12 is reserved inside the precast vertical connecting members 3, and the door and window structure 11 is installed in the door and window opening 12; the thin-walled structure outer layer 6 is fixedly connected to the outside of the thin-walled structure inner layer 4 through the connecting strut 9 to cooperate with the thin-walled structure inner layer 4 to enclose a wall beam cavity 13; the surfaces of the thin-walled structure inner layer 4 and the thin-walled structure outer layer 6 that are close to each other are rough surfaces, and hooks 10 extending into the wall beam cavity 13 are embedded; the anchoring steel bars 5 are reserved on one side of the peripheries of the precast upper floor slab 1, the precast lower floor slab 2, and on the left and right sides of the precast vertical connecting members 3, and the anchoring steel bars 5 extend into the wall beam cavity 13; the cast-in-place reinforcing beam 8 is arranged at the top and bottom of the cast-in-place wall 7, and the cast-in-place reinforcing beam 8 and the cast-in-place wall 7 are integrally formed by casting concrete into the wall beam cavity 13, so that the cast-in-place cast-in-place reinforcing beam 8 and the cast-in-place wall 7 are connected to the precast upper floor slab 1, the precast lower floor slab 2, and the precast vertical connecting members 3 through the reserved anchoring steel bars 5 to form an integral structure;

[0038] Based on the above structure, the construction method of the box house of the present utility model includes the following steps:

[0039] 1. Construction of the box-shaped main structure. Please refer to Figure 1 and Figure 2The box-type main structure can be prefabricated in the factory, and its specific prefabrication processing steps are as follows: prefabricate the steel bar sheet and pre-buried pipelines of the lower floor slab → prefabricate the lower floor slab formwork installation and concrete pouring → prefabricate the steel bar sheet and pre-buried pipelines of the vertical connection member → prefabricate the vertical connection member formwork installation and concrete pouring → prefabricate the upper floor slab formwork installation → prefabricate the steel bar sheet and pre-buried pipelines of the upper floor slab → prefabricate the upper floor slab concrete pouring → demoulding → thin-walled structure inner layer installation → door and window structure installation; wherein, the prefabricated vertical connection member 3 is arched, and its upper and lower ends extend toward the box room to be respectively connected with the prefabricated upper floor slab and the prefabricated lower floor slab steel, and at the same time, an avoidance space 18 for the construction of the cast-in-place reinforcement beam 8 is reserved; in the prefabricated lower floor slab steel bar sheet, In the steel plate tying steps of the prefabricated vertical connecting components and the prefabricated upper floor slab, anchoring steel bars 5 should be reserved on one side of the outer periphery of the prefabricated upper floor slab 1 and the prefabricated lower floor slab 2 and on the left and right sides of the prefabricated vertical connecting components 3 to extend into the wall beam cavity 13; in the installation step of the inner layer of the thin-walled structure, the draw hooks 10 are pre-embedded in advance on the rough surface of the inner layer of the thin-walled structure; in the utility model, the box-type main structure is formed by the prefabricated vertical connecting components 3, the inner layer of the thin-walled structure 4, the prefabricated upper floor slab 1 and the prefabricated lower floor slab 2, and the overall stability of the structure is good, and the box-type main structure does not include the heavy cast-in-place wall 7 and the cast-in-place reinforcement beam 8, and the weight can be reduced by more than 30%, which can facilitate the subsequent transportation and hoisting construction;

[0040] 2. Partial cast-in-place structure construction. Figure 3After the box-type main structure is processed, it is transported to the construction site and hoisted and lowered to the installation position. Then, the connecting struts 9 are installed on the outside of the thin-walled structure inner layer 4, and then the thin-walled structure outer layer 6 with the hooks 10 embedded in the rough surface is installed and fixed to the outside of the thin-walled structure inner layer 4 through the connecting struts 9 to form a wall beam cavity 13 in cooperation with the thin-walled structure inner layer 4; then, concrete is cast in place in the wall beam cavity 13 to complete the integral molding construction of the local cast-in-place structure, that is, the cast-in-place wall 7 and the cast-in-place reinforcement beam 8, so that The cast-in-place reinforcement beams 8 and the cast-in-place walls 7 are connected to the prefabricated upper floor 1, the prefabricated lower floor 2 and the prefabricated vertical connection members 3 through the reserved anchoring steel bars 5 to form an integral structure. At this time, the construction of the current box house is completed; in the utility model, the thin-walled structure outer layer 6 and the thin-walled structure inner layer 4 in the box-type main structure can be directly used as the template for the later construction of the cast-in-place wall 7 and the cast-in-place reinforcement beam 8, eliminating the on-site template processing and installation of the traditional construction, the processing and installation of the internal support frame, and greatly saving labor. The thin-walled structure outer layer 6 and the thin-walled structure inner layer 4 do not need to be disassembled, which can play a role in heat preservation and insulation and enhance the stress stability of the container room. At the same time, the outdoor side of the thin-walled structure outer layer 6 and the indoor side of the thin-walled structure inner layer 4 can be directly pre-attached with a decorative layer in the factory, thereby eliminating some of the decoration processes of the container room in the later stage, further saving construction time; in addition, the surface of the thin-walled structure inner layer 4 and the thin-walled structure outer layer 6 on the side close to each other is a rough surface, and is provided with a draw hook and a connecting rod, so that the thin-walled structure inner layer 4, The outer layer 6 of the thin-walled structure is firmly combined with the cast-in-place structure; and, in the box-type main structure, anchor steel bars are reserved on one side of the outer periphery of the precast upper floor slab 1 and the precast lower floor slab 2 and on the left and right sides of the precast vertical connecting member 3. After the cast-in-place reinforcement beams 8 and the cast-in-place wall 7 are cast, the reserved anchor steel bars 5 can be connected with the precast upper floor slab 1, the precast lower floor slab 2 and the precast vertical connecting member 3 to form an integral structure, thereby overcoming the problem that traditional box-type prefabricated buildings need to rely on later anchor bolts for connection during assembly and have poor overall structure.

[0041] Furthermore, in a preferred embodiment, the prefabricated upper floor slab 1 and the prefabricated lower floor slab 2 have a thickness of 6 to 10 cm, and are both prefabricated by casting with C25 to C35 concrete and internal steel bars with a diameter of 6 to 12 mm.

[0042] In order to ensure the structural stability of the box-type main structure and reduce its weight at the same time, further, in a preferred embodiment, the width of the prefabricated vertical connecting member 3 is 1.5~1.8 m, and the prefabricated vertical connecting member 3 is arranged at every 4~5 m on each side of the box-type building structure, and when each side of the box-type building structure cannot be provided with 2 or more prefabricated vertical connecting members 3 at the above intervals, only one prefabricated vertical connecting member 3 is arranged in the middle position of that side.

[0043] Further, in a preferred embodiment, the precast vertical connecting member 3 is precast by pouring concrete with a strength grade of C20 - C25 and embedded steel bars with a diameter of 12 - 20 mm.

[0044] Further, in a preferred embodiment, please refer to Figure 6 and Figure 9 , the utility model box house further includes a reinforcement beam steel cage 14 disposed at the top and bottom of the wall beam cavity 13 at the position of the cast-in-place reinforcement beam 8 during construction, and is tied and fixed by a connecting strut 9, thereby improving the strength of the cast-in-place reinforcement beam 8 after construction.

[0045] Further, in a preferred embodiment, the inner layer 4 of the thin-walled structure and the outer layer 6 of the thin-walled structure are assembled by standardized fiber cement boards. The thickness of the fiber cement board is 30 - 50 mm, and a fiber mesh and a steel mesh are embedded therein to ensure the strength of the fiber cement board; preferably, a heat-insulating material is added to the fiber cement board to improve its heat-insulating and heat-preserving performance.

[0046] Further, in a preferred embodiment, please refer to Figure 9 , the utility model box further includes an inner wall decoration layer 15 disposed on the indoor side surface of the inner layer 4 of the thin-walled structure and an outer wall decoration layer 16 disposed on the indoor side surface of the outer layer 6 of the thin-walled structure.

[0047] Further, in a preferred embodiment, the inner wall decoration layer 15 is constructed by paint, ceramic tiles or wall cloth, and the outer wall decoration layer 16 is constructed by real paint or ceramic tiles; the inner wall decoration layer 15 and the outer wall decoration layer 16 can be pre-brushed or adhered centrally by machine or manually in the factory to achieve factory production.

[0048] Further, in a preferred embodiment, the hook 10 is bent from a steel bar with a diameter of 4 - 6 mm, and the connecting strut 9 is a steel bar with a diameter of 12 - 20 mm.

Claims

1. The fully assembled integrated locally cast-in-place box house, including a precast upper floor slab, a precast lower floor slab, and a door and window structure, is characterized in that, It also includes: Prefabricated vertical connection members, inner layer of thin-walled structure, anchoring steel bars, outer layer of thin-walled structure, cast-in-place wall, cast-in-place reinforcement beam, connecting struts and hooks; The prefabricated vertical connection members and the inner layer of the thin-walled structure are connected between the edges of the prefabricated upper floor slab and the prefabricated lower floor slab to jointly enclose a box-shaped main structure with the prefabricated upper floor slab and the prefabricated lower floor slab. Construction avoidance spaces for the cast-in-place reinforcement beam are reserved at both the upper and lower ends of the prefabricated vertical connection members and the inner layer of the thin-walled structure; door and window openings are reserved inside the prefabricated vertical connection members, and the door and window structures are installed in the door and window openings; the outer layer of the thin-walled structure is connected and fixed to the outside of the inner layer of the thin-walled structure through connecting struts to cooperate with the inner layer of the thin-walled structure to enclose a wall-beam cavity; the surfaces of the inner layer and the outer layer of the thin-walled structure close to each other are rough surfaces, and hooks extending into the wall-beam cavity are embedded; the anchoring steel bars are reserved on one side of the peripheries of the prefabricated upper floor slab, the prefabricated lower floor slab and on the left and right sides of the prefabricated vertical connection members, and the anchoring steel bars extend into the wall-beam cavity; the cast-in-place reinforcement beam is arranged at the top and bottom of the cast-in-place wall, and the cast-in-place reinforcement beam and the cast-in-place wall are integrally formed by casting concrete into the wall-beam cavity, so that the cast-in-place cast-in-place reinforcement beam and the cast-in-place wall are connected to the prefabricated upper floor slab, the prefabricated lower floor slab and the prefabricated vertical connection members through the reserved anchoring steel bars to form an integral structure.

2. The fully assembled integrated locally cast-in-place box house according to claim 1, wherein The thickness of the prefabricated upper floor slab and the prefabricated lower floor slab is 6 - 10 cm, and they are both precast with C25 - C35 concrete and internally placed with steel bars with a diameter of 6 - 12 mm.

3. The fully assembled and integrated locally cast-in-place box house according to claim 1, characterized in that, The width of the prefabricated vertical connection member is 1.5 - 1.8 m. One prefabricated vertical connection member is arranged at intervals of 4 - 5 m on each side of the box-shaped building structure. When two or more prefabricated vertical connection members cannot be arranged at the above intervals on each side of the box-shaped building structure, only one prefabricated vertical connection member is arranged at the middle position on that side.

4. The fully assembled integrated locally cast-in-place box house according to claim 1, characterized in that, The prefabricated vertical connection member is precast with C20 - C25 concrete and internally placed with steel bars with a diameter of 12 - 20 mm.

5. The fully installed and integrated locally cast-in-place box house according to claim 1, characterized in that It also includes a reinforcement beam steel cage arranged at the positions of the cast-in-place reinforcement beam during construction at the top and bottom of the wall-beam cavity and tied and fixed through connecting struts.

6. The fully assembled and integrated locally cast-in-place box house according to claim 1, characterized in that, The inner layer and the outer layer of the thin-walled structure are assembled with standardized fiber cement boards. The thickness of the fiber cement board is 30 - 50 mm, and it is internally provided with a fiber mesh and a steel mesh.

7. The fully assembled integrated locally cast-in-place box house according to claim 1, wherein It also includes an inner wall decoration layer arranged on the indoor side surface of the inner layer of the thin-walled structure and an outer wall decoration layer arranged on the indoor side surface of the outer layer of the thin-walled structure.

8. The fully assembled and integrated locally cast-in-place box house according to claim 7, characterized in that, The inner wall decoration layer is constructed with paint, ceramic tiles or wall cloth, and the outer wall decoration layer is constructed with real paint or ceramic tiles.

9. The fully assembled and integrated locally cast-in-place box house according to claim 1, characterized in that, The hook is bent from a steel bar with a diameter of 4 - 6 mm, and the connecting strut is a steel bar with a diameter of 12 - 20 mm.

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