Modular building structure

Abstract

The utility model provides a combined building structure belongs to building engineering technical field, including beam reinforcement cage, column reinforcement cage, prefabricated joint still includes connecting sleeve, the prefabricated joint side and upper and lower end face are provided with butt joint reinforcement, the beam reinforcement cage end reinforcement is connected fixed with the butt joint reinforcement of prefabricated joint side through connecting sleeve, or with another beam reinforcement cage end reinforcement connection fixed, the column reinforcement cage end reinforcement is connected fixed with the butt joint reinforcement of prefabricated joint upper and lower end face through connecting sleeve, the steel consumption of the utility model is not much more than the common, lower cost building method wood mould cast in place, and the product is all standardization, modular design, the obvious reduction of construction procedure and simple to use can save a lot of manual work, and the same building total cost using the product is all lower than the same building total cost of existing mainstream building method wood mould cast in place, fabricated building, has low cost advantage.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically to a composite building structure. Background Technology

[0002] With economic development, people living in urban and rural areas have increasingly higher requirements for housing. The traditional steel-concrete frame structure houses have complicated construction processes, which are not only time-consuming and labor-intensive, but also wasteful of materials.

[0003] The inventor has applied for a Chinese patent for a combined building beam, column, and shear wall reinforcement cage construction system (publication number CN222893857U), which includes beam reinforcement cages, column reinforcement cages, and beam-column connectors. The top of the column reinforcement cage is assembled with the bottom surface of the beam-column connector, the side of the beam-column connector is assembled with one end of the beam reinforcement cage, and the other end of the beam reinforcement cage is assembled with one end of another beam reinforcement cage or the side of the beam-column connector. The beam and column reinforcement cages are prefabricated and then assembled. Beam-column connectors are designed at the connection points between the beam and column reinforcement cages to facilitate the connection between them, which can greatly save on-site construction time. However, the beam, column, and beam reinforcement cages are spliced ​​using butt-joint steel plates. The use of butt-joint steel plates increases the prefabrication time of the beam and column reinforcement cages and results in a higher steel consumption, which still needs improvement. Utility Model Content

[0004] In view of the above, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a modular building structure. This application provides the following technical solution:

[0005] The device includes beam reinforcement cages, column reinforcement cages, and precast joints, as well as connecting sleeves. The precast joints are provided with butt reinforcement bars on their sides and upper and lower end faces. The end reinforcement bars of the beam reinforcement cages are connected and fixed to the butt reinforcement bars on the side of the precast joints through the connecting sleeves, or connected and fixed to the end reinforcement bars of another beam reinforcement cage. The end reinforcement bars of the column reinforcement cages are connected and fixed to the butt reinforcement bars on the upper and lower end faces of the precast joints through the connecting sleeves.

[0006] The precast joint includes a concrete body, the butt reinforcing bars are fixed to the concrete body, a central reinforcing steel pipe is fixed inside the concrete body, and the end of the central reinforcing steel pipe extends out from the side and upper and lower end faces of the concrete body.

[0007] The end of the central reinforcing steel pipe is provided with a pin hole, and a pin is inserted into the pin hole.

[0008] The connecting sleeve includes a staggered welded sleeve, which has staggered insertion holes at both ends and a welded joint extending through the insertion holes on its side wall.

[0009] The connecting sleeve includes a lateral locking sleeve, which has an axially arranged through hole and threaded holes at both ends that extend through the through hole. Locking screws are threaded into the threaded holes.

[0010] Movable stirrups are evenly arranged and tied and fixed near the connecting sleeve of the beam reinforcement cage, the column reinforcement cage and the butt reinforcement.

[0011] It also includes shear wall reinforcement cages, wherein the end reinforcement bars of the shear wall reinforcement cages are tied and fixed to the column reinforcement cages, or tied and fixed to the end reinforcement bars of another shear wall reinforcement cage.

[0012] It also includes modular formwork, which is respectively connected and fixed to the bottom and side of the beam reinforcement cage, as well as the side of the column reinforcement cage and the shear wall reinforcement cage.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] Firstly, the main products are all standardized and modular in design, and are all produced mechanizedly in the factory, resulting in low initial costs. Secondly, the main products can be assembled on the construction site into a single hollow unit module for beams, columns, and shear walls. Connecting multiple hollow unit modules forms the entire building's beam, column, and shear wall hollow modules, which are then poured with concrete. The products and the hollow modules they form are lightweight before the final concrete pour, facilitating production, transportation, and use. Thirdly, the use of prefabricated joints, connecting sleeves, and butt-jointed reinforcing bars to connect the reinforcing cages, followed by the installation of modular formwork and final concrete pouring, represents an innovation that does not deviate from the fundamental principle of cast-in-place reinforced concrete construction—"internal reinforcing bars bear tensile force, external concrete bears compressive force"—and remains a solid cast-in-place process, ensuring that the quality of the finished components meets industry standards. Fourth, the steel consumption of this product is not much higher than that of commonly used, lower-cost construction methods such as cast-in-place wooden formwork. Furthermore, because the products are all standardized and modular in design, the significant reduction in construction procedures and ease of use can save a lot of labor. The total cost of the same building using this product is lower than that of the same building using existing mainstream construction methods such as cast-in-place wooden formwork and prefabricated buildings, giving it a significant cost advantage. Fifth, the product does not require demolition, saving labor costs and other expenses in demolition work.

[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a modular building structure.

[0018] Figure 2 This is an enlarged view of the connecting sleeve of a modular building structure.

[0019] Figure 3 This is a schematic diagram of a prefabricated joint for a modular building structure.

[0020] Figure 4 This is a schematic diagram of a misaligned welded sleeve in a modular building structure.

[0021] Figure 5 This is a cross-sectional view of a misaligned welded sleeve in a composite building structure.

[0022] Figure 6 This is a cross-sectional view of a lateral locking sleeve in a modular building structure.

[0023] Figure 7 This is a schematic diagram of a modular building structure assembly template.

[0024] Reference numerals: 1. Beam reinforcement cage; 2. Column reinforcement cage; 3. Precast joint; 31. Butt reinforcement; 32. Concrete body; 33. Central reinforcing steel pipe; 34. Pin hole; 35. Pin; 4. Connecting sleeve; 41. Offset welding sleeve; 411. Insertion hole; 412. Weld joint; 42. Lateral locking sleeve; 421. Butt through hole; 422. Threaded hole; 423. Locking screw; 43. Movable stirrup; 5. Shear wall reinforcement cage; 6. Modular formwork. Detailed Implementation

[0025] Please refer to Figure 1-7 As shown, this utility model provides a combined building structure, including a beam reinforcement cage 1, a column reinforcement cage 2, a prefabricated joint 3, and a connecting sleeve 4. The prefabricated joint 3 has butt reinforcement bars 31 on its side and upper and lower end faces. The end reinforcement bars of the beam reinforcement cage 1 are connected and fixed to the butt reinforcement bars 31 on the side of the prefabricated joint 3 through the connecting sleeve 4, or connected and fixed to the end reinforcement bars of another beam reinforcement cage 1. The end reinforcement bars of the column reinforcement cage 2 are connected and fixed to the butt reinforcement bars 31 on the upper and lower end faces of the prefabricated joint 3 through the connecting sleeve 4.

[0026] Among them, the beam reinforcement cage 1 and column reinforcement cage 2 are prefabricated in the factory with standardized design. The spacing and dimensions of their longitudinal main bars are required to be consistent and the ends are flush. The butt reinforcement bars 31 on the prefabricated joint 3 are also prefabricated to correspond to their shape, size and spacing. This makes it easier and stronger to connect and fix the beam reinforcement cage 1, column reinforcement cage 2 and the butt reinforcement bars 31 on the prefabricated joint 3 through the connecting sleeve 4.

[0027] The precast joint 3 is a steel-concrete component precast in the factory with a steel reinforcement size and quantity that is basically consistent with the original design of the building. Specifically, the precast joint 3 includes a concrete body 32, with butt reinforcing bars 31 pre-embedded and fixed on the concrete body 32. A central reinforcing steel pipe 33 is pre-embedded and fixed inside the concrete body 32. The ends of the central reinforcing steel pipe 33 pass through the side and upper and lower end faces of the concrete body 32, and the internal parts of the central reinforcing steel pipe 33 are interconnected.

[0028] Furthermore, the central reinforcing steel pipe 33 can be divided into various models according to the size requirements of the beams and columns. It is calculated based on the designed beams and columns and prefabricated and embedded in the concrete body 32.

[0029] The end of the central reinforcing steel pipe 33 is provided with a pin hole 34, and a pin 35 is inserted into the pin hole 34.

[0030] In practical applications, after the concrete is poured, the pin is embedded in the concrete, so that the precast joint 3 forms a structure similar to anchorage between the beam reinforcement cage 1 and the column reinforcement cage 2, which strengthens the connection strength between the concrete beam and concrete column and the precast joint 3.

[0031] In an optional embodiment, the connecting sleeve 4 includes a staggered welded sleeve 41, with staggered insertion holes 411 at both ends and a welded joint 412 extending through the insertion holes 411 on the side wall.

[0032] When using it, the steel bars that need to be connected are inserted into the insertion holes 411 at both ends. After insertion, the two steel bars are in contact on the sides, and then the two steel bars are welded through the welding joint 412 to complete the connection and fixation of the two steel bars. The staggered welding sleeve 41 is applicable to the connection of steel bars with smaller diameters. Its advantages are simple processing, convenient installation, and low cost. It is suitable for low-rise buildings such as rural housing construction.

[0033] In another optional embodiment, the connecting sleeve 4 includes a lateral locking sleeve 42, which has an axially arranged through hole 421 and threaded holes 422 extending through the through hole 421 at both ends. A locking screw 423 is threaded into the threaded hole 422.

[0034] When using it, insert the steel bars that need to be connected into the butt holes 421 at both ends, and then tighten the locking screws 423 in the threaded holes 422. The locking screws 423 press the two steel bars together to achieve the connection and fixation of the two steel bars. The lateral locking sleeve 42 is suitable for connecting steel bars with larger diameters. Its advantages are high strength, simple construction and low cost. It is suitable for high-rise buildings and large buildings.

[0035] Movable stirrups 43 are evenly arranged and tied and fixed near the connecting sleeve 4 of the beam reinforcement cage 1, column reinforcement cage 2 and butt reinforcement 31.

[0036] Among them, the movable stirrup 43 can be prefabricated to have the same size and shape as the fixed stirrups on the beam steel cage 1 and column steel cage 2, so that it can be directly fitted onto both ends of the beam steel cage 1 and column steel cage 2 during assembly.

[0037] It also includes a shear wall reinforcement cage 5, the end reinforcement of the shear wall reinforcement cage 5 is tied and fixed to the column reinforcement cage 2, or tied and fixed to the end reinforcement of another shear wall reinforcement cage 5.

[0038] It also includes a modular formwork 6, which is connected and fixed to the bottom and side of the beam reinforcement cage 1, as well as the side of the column reinforcement cage 2 and the shear wall reinforcement cage 5.

[0039] The specific structure of the combined formwork 6 can be referenced from the formwork in a combined formwork building system (utility model patent number: ZL202321349360.3). The combined formwork 6 installed at the beam reinforcement cage 1 corresponds to the beam edge plate in this patent, and the beam reinforcement cage 1 corresponds to the beam reinforcement skeleton connected to the beam edge plate in this patent. The combined formwork 6 installed at the column reinforcement cage 2 corresponds to the column plate in this patent, and the column reinforcement cage 2 corresponds to the column reinforcement skeleton connected to the column plate in this patent. The combined formwork 6 installed on the side of the shear wall reinforcement cage 5 corresponds to the wall plate in this patent, and the shear wall reinforcement cage 5 corresponds to the wall reinforcement skeleton connected to the wall plate in this patent. The specific structure of the combined formwork 6 and how to install and fix it have been described in detail in this patent, and will not be repeated here.

[0040] In practice, the dimensions of each beam and column are determined according to the design drawings. Based on these dimensions, products such as beam reinforcement cage 1, column reinforcement cage 2, shear wall reinforcement cage 5, combined formwork 6, and prefabricated joints 3 are manufactured in the factory. First, the combined formwork 6 is installed on the beam reinforcement cage 1, column reinforcement cage 2, and shear wall reinforcement cage 5. When installing the combined formwork 6, care should be taken to leave a gap between the combined formwork 6 and the ends of the beam reinforcement cage 1 and column reinforcement cage 2, which is the reserved space for the installation of the connecting sleeve 4. Then, the column reinforcement cage 2 is fixed on the foundation. The shear wall reinforcement cage 5 is connected to the side of the column reinforcement cage 2. The precast joint 3 is installed on the top of the column reinforcement cage 2. The ends of the main reinforcement bars on the top of the column reinforcement cage 2 are connected to the butt reinforcement bars 31 below the precast joint 3 by inserting them into the reserved space of the connecting sleeve 10. For high-rise building construction, the side locking sleeve 42 is used for fixing. For low-rise building construction, the staggered welding sleeve 41 is used for window welding. Then, the beam reinforcement cage 1 is hoisted by a crane or other machinery to connect the beam reinforcement cage 1 with the precast joint 3. After the connection and assembly of the overall beam, column and shear wall are completed, the reserved space of the combined formwork 6 needs to be filled with formwork. Finally, the concrete is poured. The concrete is injected from the grouting port reserved at the top of the combined formwork 6 outside the column reinforcement cage 2 and the shear wall reinforcement cage 5. The concrete for the beam reinforcement cage 1 is injected from the empty space of the top combined formwork 6. Generally, when assembling the combined formwork 6 of the beam reinforcement cage 1, the entire top surface is left empty.

[0041] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A composite building structure, comprising a beam reinforcement cage (1), a column reinforcement cage (2), and a prefabricated joint (3), characterized in that: It also includes a connecting sleeve (4), and the precast joint (3) is provided with butt reinforcing bars (31) on the side and the upper and lower end faces. The end reinforcing bars of the beam reinforcing cage (1) are connected and fixed to the butt reinforcing bars (31) on the side of the precast joint (3) through the connecting sleeve (4), or connected and fixed to the end reinforcing bars of another beam reinforcing cage (1). The end reinforcing bars of the column reinforcing cage (2) are connected and fixed to the butt reinforcing bars (31) on the upper and lower end faces of the precast joint (3) through the connecting sleeve (4).

2. The modular building structure as described in claim 1, characterized in that: The precast joint (3) includes a concrete body (32), the butt reinforcing bar (31) is fixed on the concrete body (32), and a central reinforcing steel pipe (33) is fixed inside the concrete body (32). The end of the central reinforcing steel pipe (33) passes through the side and upper and lower end faces of the concrete body (32).

3. A modular building structure as described in claim 2, characterized in that: The end of the central reinforcing steel pipe (33) is provided with a pin hole (34), and a pin (35) is inserted into the pin hole (34).

4. A modular building structure as described in claim 1, characterized in that: The connecting sleeve (4) includes a staggered welding sleeve (41), with staggered insertion holes (411) at both ends and a welding port (412) extending through the insertion hole (411) on the side wall.

5. A modular building structure as described in claim 1, characterized in that: The connecting sleeve (4) includes a lateral locking sleeve (42), which has an axially arranged through hole (421) and threaded holes (422) extending through the through hole (421) at both ends. A locking screw (423) is threaded into the threaded hole (422).

6. A modular building structure as described in claim 1, characterized in that: Movable stirrups (43) are evenly arranged and tied and fixed near the connecting sleeve (4) of the beam reinforcement cage (1), the column reinforcement cage (2) and the butt reinforcement (31).

7. A modular building structure as described in claim 1, characterized in that: It also includes a shear wall reinforcement cage (5), wherein the end reinforcement of the shear wall reinforcement cage (5) is tied to the column reinforcement cage (2) or tied to the end reinforcement of another shear wall reinforcement cage (5).

8. A modular building structure as described in claim 7, characterized in that: It also includes a modular template (6), which is connected and fixed to the bottom and side of the beam reinforcement cage (1), as well as the side of the column reinforcement cage (2) and the shear wall reinforcement cage (5).

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