Concrete pentahedron modular building and construction method

Abstract

The invention relates to the technical field of modular buildings, in particular to a concrete pentahedron modular building and a construction method.The concrete pentahedron modular building comprises multiple sets of pentahedron modular box bodies, multiple sets of frame columns and multiple sets of concrete superposed beams, and the multiple sets of concrete superposed beams are installed between the multiple sets of pentahedron modular box bodies correspondingly; the plurality of groups of frame columns are respectively mounted at the corners of the plurality of groups of pentahedral modular box bodies; the pentahedral modular box body is composed of a pentahedral modular box body top plate and four sets of pentahedral modular box body side plates, the pentahedral modular box body top plate is located at the tops of the four sets of pentahedral modular box body side plates, and gaps are formed between the adjacent pentahedral modular box body side plates; a pouring groove is formed in the side wall of the pentahedral modular box body; the assembly degree is high, installation is fast, the construction period is greatly shortened, the problem of plate repetition between the upper module and the lower module is avoided, and the use space is increased.

Description

Technical Field

[0001] This invention relates to the field of modular building technology, and in particular to a concrete five-sided modular building and its construction method. Background Technology

[0002] Currently, modular buildings mainly come in two forms: steel structure modular buildings and concrete modular buildings. Steel structure modular buildings have the following drawbacks: First, the connection nodes between the upper and lower modules and between the left and right modules are complex, making on-site installation difficult and making it hard to achieve installation accuracy. Second, the upper and lower modules are connected by double-layer beams and double-layer slabs, and the left and right modules are connected by double columns. When four modules are spliced ​​together, there are four columns, resulting in a large amount of steel consumption and high cost. Third, the double-layer beams between the upper and lower modules and the combined columns between the left and right modules have complex stresses, and existing calculation theories and software cannot accurately calculate them. Fourth, modular finished products all have bottom and top slabs. When the upper and lower modules are spliced ​​together, the top and bottom slabs overlap, increasing the total floor slab thickness, reducing the effective usable space, and increasing the self-weight of the modules, making transportation and hoisting difficult. Fifth, when used in high-rise buildings, they need to be combined with concrete structures to form a hybrid structure, increasing structural complexity. Existing modular concrete building structures exhibit the following significant drawbacks: First, the connection strength and stiffness at the joints between upper and lower, and left and right modules are insufficient. To improve structural integrity and seismic performance, a large amount of concrete pouring is required during installation, impacting the construction progress of modular buildings without shortening the construction cycle. Concrete pouring between modules is also difficult. Second, the structural system is unclear and does not conform to existing structural systems, making accurate calculations impossible using current calculation theories. Third, both upper and lower modules have floor slabs, resulting in overlapping of the top and bottom slabs after installation. This increases the total thickness of the floor slabs, the amount of concrete and steel reinforcement, reduces usable space, and increases the self-weight of the modules, leading to difficulties in transportation and hoisting. Fourth, on-site steel reinforcement binding is required at the joints between upper and lower, and left and right modules. Some reinforcement construction is difficult, and the quality of the connection joints is hard to guarantee, directly resulting in poor structural integrity and seismic performance. Fifth, on-site concrete testing is difficult because concrete is poured between modules, making non-destructive testing challenging. Existing modular concrete buildings used for low-rise buildings also suffer from direct overlap between upper and lower modules, lacking an effective connection method. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a concrete five-sided modular building and construction method that has a high degree of assembly, quick installation, greatly shortens the construction period, avoids the problem of plate duplication between upper and lower modules, and increases the usable space.

[0004] The present invention provides a concrete five-sided modular building, comprising multiple sets of five-sided modular boxes, multiple sets of frame columns, and multiple sets of concrete composite beams. The multiple sets of concrete composite beams are respectively installed between the multiple sets of five-sided modular boxes, and the multiple sets of frame columns are respectively installed at the corners of the multiple sets of five-sided modular boxes. The pentahedral modular box consists of a pentahedral modular box top plate and four sets of pentahedral modular box side plates. The pentahedral modular box top plate is located on top of the four sets of pentahedral modular box side plates, and there are notches between adjacent pentahedral modular box side plates. The side walls of the pentahedral modular box are provided with casting grooves for the molding of concrete supports.

[0005] Preferably, it also includes a core tube, with multiple sets of pentahedral modular enclosures installed around the core tube.

[0006] Preferably, the frame columns can be L-shaped, T-shaped, or cross-shaped; ensuring the stability of multiple sets of pentahedral modular boxes and reducing space occupation.

[0007] Preferably, the locations on the pentahedral modular box where the frame columns are constructed all use a combination of U-shaped hoops and closed stirrups to improve the stability of the frame columns after construction.

[0008] Preferably, a concrete side beam is provided between the top plate and the side plate of the pentahedral modular box, and one side of the concrete side beam and the top plate of the pentahedral modular box are prefabricated in the factory, while the other set of side stirrups of the concrete side beam are exposed.

[0009] A construction method for a concrete five-sided modular building includes the following steps: Step 1: Prefabrication The pentahedral modular box is prefabricated in the factory, leaving notches at all four corners of the pentahedral modular box, and horizontal steel bars are reserved at the notches at the four corners of the pentahedral modular box. Step Two: Transportation The limiting mechanism is placed on the transport vehicle, and then the prefabricated five-sided modular box is lifted by the hoisting equipment and placed on the ward. The limiting mechanism limits the bottom of the five-sided modular box to ensure the stability of the five-sided modular box during transportation. Step 3, Setup: At the construction site, the five-sided modular boxes are hoisted and assembled around the core tube to align the five-sided modular boxes in all directions to form an overall building layout. During the assembly process, longitudinal steel bars are tied at the notches at the four corners of the five-sided modular boxes, and U-shaped hoops and closed hoops are used to fix the longitudinal steel bars. Then, the exposed hoops at the concrete composite beams between the five-sided modular boxes are connected, and then the casting mold is erected. Step 4: Pouring: Concrete is poured at the notches at the four corners of the pentahedral modular box and between adjacent pentahedral modular boxes to form the frame columns, concrete composite beams and concrete supports. Step 5: Shaping After the concrete has solidified, the combination of frame columns, composite concrete beams and concrete supports allows multiple sets of pentahedral modular boxes and frame columns to form a complete building structure.

[0010] Preferably, when constructing high-rise buildings, a five-sided modular box structure, frame columns, composite concrete beams, concrete supports, and a core tube are used; when constructing multi-story buildings, a five-sided modular box structure, frame columns, composite concrete beams, and concrete support structure are used; and when constructing low-rise buildings, a five-sided modular box structure, frame columns, and composite concrete beam structure are used.

[0011] Preferably, the limiting mechanism includes multiple sets of templates, multiple sets of limiting pins, and multiple sets of wire ropes. The top of each template is provided with a limiting groove. Multiple sets of stranded wheels are rotatably mounted on the multiple sets of templates, and each set of templates and stranded wheels has a limiting hole. Multiple sets of limiting pins are inserted into the limiting holes of the multiple sets of templates and stranded wheels. Multiple sets of wire ropes are installed on the multiple sets of stranded wheels, and one end of each set of stranded wheels has a hexagonal groove. The multiple sets of templates are placed on a transport vehicle, and the four corners of the five-sided modular box are inserted into the slots on the multiple sets of templates. A hexagonal wrench is then used to rotate the stranded wheels, causing them to wind up the wire ropes and tighten them. The limiting pins are then inserted into the limiting holes of the stranded wheels and templates to limit the movement of the stranded wheels, ensuring the stability of the five-sided modular box during transport.

[0012] Preferably, the limiting groove at the top of the template can be set to an L-shape, a T-shape, or a cross shape according to the shape of the bottom of the pentahedral modular box.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High degree of prefabrication, quick installation, greatly shortening the construction period; 2. It avoids the problem of board duplication between upper and lower modules, increasing usable space; 3. Less on-site formwork required, less concrete pouring volume, and convenient construction; 4. Can be integrated with modular and unified systems to complete high-end decoration; 5. It conforms to existing structural system forms, is suitable for the needs of most building functions, has a wide range of applications, and has mature calculation theories. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the completed construction of the concrete five-sided modular building according to the present invention; Figure 2 This is a schematic diagram of the structure of the concrete five-sided modular building of the present invention before it is poured; Figure 3 This is a structural schematic diagram of the five-sided modular box and core tube of the present invention; Figure 4 This is a schematic diagram of the structure of the five-sided modular box of the present invention; Figure 5 This is a schematic diagram of the core tube structure of the present invention; Figure 6 This is a structural schematic diagram of the five-sided modular box, frame columns, and concrete supports of the present invention; Figure 7 This is a schematic diagram of the concrete support structure of the present invention; Figure 8 This is a schematic diagram of the five-sided modular box and frame column structure of the present invention; Figure 9 This is an isometric structural diagram of the limiting mechanism of the present invention; Figure 10 This is the present invention. Figure 9 A magnified structural diagram of part A in the diagram; Figure 11 This is a schematic diagram of the frame support structure of the present invention.

[0015] The following are labeled in the attached diagram: 1. Pentahedral modular box; 2. Frame column; 3. Concrete composite beam; 4. Core tube; 5. Top plate of pentahedral modular box; 6. Side plate of pentahedral modular box; 7. Concrete side beam; 8. Concrete support; 10. Formwork; 11. Strand wheel; 12. Limit pin; 13. Wire rope; 14. Slot; 15. Support stirrup. Detailed Implementation

[0016] To facilitate understanding of the present invention, a clear, complete, and accurate description will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present invention more comprehensive.

[0017] like Figures 1 to 11 As shown, a concrete pentahedral modular building: It includes multiple sets of pentahedral modular box 1, multiple sets of frame columns 2, multiple sets of concrete composite beams 3 and core tube 4. The multiple sets of pentahedral modular box 1 are all installed around the core tube 4. The multiple sets of concrete composite beams 3 are installed between the multiple sets of pentahedral modular box 1 respectively. The multiple sets of frame columns 2 are installed at the corners of the multiple sets of pentahedral modular box 1 respectively. The pentahedral modular box 1 is composed of a pentahedral modular box top plate 5 and four sets of pentahedral modular box side plates 6. The pentahedral modular box top plate 5 is located on top of the four sets of pentahedral modular box side plates 6, and there are notches between adjacent pentahedral modular box side plates 6. The side wall of the pentahedral modular box 1 is provided with a casting groove for the molding of concrete support 8. It also includes the core tube 4, and multiple sets of pentahedral modular boxes 1 are installed around the core tube 4; The frame column 2 can be L-shaped, T-shaped, or cross-shaped; The locations on the pentahedral modular box 1 where the frame column 2 is constructed all use a combination of U-shaped hoops and closed stirrups. A concrete side beam 7 is provided between the top plate 5 and the side plate 6 of the pentahedral modular box. One side of the concrete side beam 7 and the top plate 5 of the pentahedral modular box are prefabricated in the factory, and the other set of side stirrups of the concrete side beam 7 are exposed.

[0018] Example: A construction method for a concrete five-sided modular building, comprising the following steps: Step 1: Prefabrication The pentahedral modular box 1 is prefabricated in the factory, leaving notches at all four corners of the pentahedral modular box 1, and horizontal steel bars are reserved at the notches at the four corners of the pentahedral modular box 1. Step Two: Transportation The limiting mechanism is placed on the transport vehicle, and then the prefabricated five-sided modular box 1 is lifted by the hoisting equipment and placed on the limiting mechanism, so that the limiting mechanism limits the bottom of the five-sided modular box 1 to ensure the stability of the five-sided modular box 1 during transportation. Step 3, Setup: At the construction site, the five-sided modular box 1 is hoisted and assembled around the core tube 4, so that the five-sided modular box 1 is aligned in all directions to form an overall building layout. During the assembly process, longitudinal steel bars are tied at the notches at the four corners of the five-sided modular box 1, and U-shaped hoops and closed hoops are used to fix the longitudinal steel bars. Then, the exposed hoops at the concrete composite beam 3 between the five-sided modular box 1 are connected, and then the casting mold is erected. Step 4: Pouring: Concrete is poured at the notches at the four corners of the pentahedral modular box 1 and between adjacent pentahedral modular boxes 1 to form the frame column 2, concrete composite beam 3 and concrete support 8. Step 5: Shaping After the concrete solidifies, the combination of frame columns 2, concrete composite beams 3 and concrete supports 8 enables multiple sets of pentahedral modular boxes 1 and frame columns 2 to form a complete building structure. When constructing high-rise buildings, a five-sided modular box 1, frame columns 2, concrete composite beams 3, concrete supports 8, and core tube 4 are used; when constructing multi-story buildings, a five-sided modular box 1, frame columns 2, concrete composite beams 3, and concrete supports 8 are used; when constructing low-rise buildings, a five-sided modular box 1, frame columns 2, and concrete composite beams 3 are used. The limiting mechanism includes multiple sets of templates 10, multiple sets of limiting pins 12, and multiple sets of steel wire ropes 13. The top of the template 10 is provided with a limiting groove. Multiple sets of stranded wheels 11 are rotatably mounted on the multiple sets of templates 10. Both the multiple sets of templates 10 and the multiple sets of stranded wheels 11 are provided with limiting holes. The multiple sets of limiting pins 12 are respectively inserted into the limiting holes of the multiple sets of templates 10 and the multiple sets of stranded wheels 11. The multiple sets of steel wire ropes 13 are respectively mounted on the multiple sets of stranded wheels 11. Each of the multiple sets of stranded wheels 11 has a hexagonal groove at one end. The limiting groove at the top of template 10 can be set to L-shape, T-shape or cross-shape according to the shape of the bottom of the pentahedral modular box 1.

[0019] The present invention discloses a concrete five-sided modular building and construction method. The installation method, connection method or setting method are all common mechanical methods. As long as the beneficial effect can be achieved, they can be implemented. The five-sided modular box 1 is provided with supporting stirrups 15 in the pouring groove. The limiting pins 12 and steel wire ropes 13 of the concrete five-sided modular building and construction method of the present invention are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from technical personnel in this field.

[0020] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A concrete pentahedral modular building, characterized in that, It includes multiple sets of pentahedral modular box bodies (1), multiple sets of frame columns (2) and multiple sets of concrete composite beams (3). The multiple sets of concrete composite beams (3) are installed between the multiple sets of pentahedral modular box bodies (1), and the multiple sets of frame columns (2) are installed at the corners of the multiple sets of pentahedral modular box bodies (1). The pentahedral modular box (1) consists of a pentahedral modular box top plate (5) and four sets of pentahedral modular box side plates (6). The pentahedral modular box top plate (5) is located on top of the four sets of pentahedral modular box side plates (6), and there are notches between adjacent pentahedral modular box side plates (6). The side walls of the pentahedral modular box (1) are provided with casting grooves for the molding of concrete supports (8).

2. A concrete pentahedral modular building as described in claim 1, characterized in that, It also includes a core tube (4), and multiple sets of pentahedral modular boxes (1) are installed around the core tube (4).

3. A concrete pentahedral modular building as described in claim 1, characterized in that, The frame column (2) can be L-shaped, T-shaped or cross-shaped.

4. A concrete pentahedral modular building as described in claim 1, characterized in that, The positions on the pentahedral modular box (1) where the frame column (2) is constructed all use a combination of U-shaped hoops and closed hoops.

5. A concrete pentahedral modular building as described in claim 1, characterized in that, A concrete side beam (7) is provided between the top plate (5) of the pentahedral modular box and the side plate (6) of the pentahedral modular box. One side of the concrete side beam (7) and the top plate (5) of the pentahedral modular box are prefabricated in the factory, and the other set of side stirrups of the concrete side beam (7) are exposed.

6. A construction method for a concrete five-sided modular building, characterized in that, The construction of the concrete pentahedral modular building according to any one of claims 1 to 5 includes the following steps: Step 1: Prefabrication The pentahedral modular box (1) is prefabricated in the factory, so that gaps are left at the four corners of the pentahedral modular box (1), and horizontal steel bars are reserved at the four corner gaps of the pentahedral modular box (1). Step Two: Transportation The limiting mechanism is placed on the transport vehicle, and then the prefabricated five-sided modular box (1) is lifted by the hoisting equipment and placed on the ward and the limiting mechanism, so that the limiting mechanism limits the bottom of the five-sided modular box (1) to ensure the stability of the five-sided modular box (1) during transportation. Step 3, Setup: At the construction site, the five-sided modular box (1) is hoisted and spliced ​​around the core tube (4) so ​​that the five-sided modular box (1) is aligned in the upper, lower and left and right to form an overall building layout. During the splicing process, longitudinal steel bars are tied at the notches at the four corners of the five-sided modular box (1), and U-shaped hoops and closed hoops are used to fix the longitudinal steel bars. Then, the exposed hoops at the concrete composite beam (3) between the five-sided modular boxes (1) are connected, and then the casting mold is built. Step 4: Pouring: Concrete is poured at the notches at the four corners of the pentahedral modular box (1) and between the adjacent pentahedral modular box (1) to form the frame column (2), concrete composite beam (3) and concrete support (8). Step 5: Shaping After the concrete solidifies, the combination of the frame columns (2), the concrete composite beams (3) and the concrete supports (8) enables multiple sets of pentahedral modular boxes (1) and frame columns (2) to form a complete building structure.

7. The construction method of a concrete five-sided modular building as described in claim 6, characterized in that, When constructing high-rise buildings, a five-sided modular box (1), frame columns (2), concrete composite beams (3), concrete supports (8) and core tube (4) are used; when constructing multi-story buildings, a five-sided modular box (1), frame columns (2), concrete composite beams (3) and concrete supports (8) structure is used; when constructing low-rise buildings, a five-sided modular box (1), frame columns (2) and concrete composite beams (3) structure are used.

8. The construction method of a concrete five-sided modular building as described in claim 6, characterized in that, The limiting mechanism includes multiple sets of templates (10), multiple sets of limiting pins (12), and multiple sets of wire ropes (13). The top of the template (10) is provided with a limiting groove. Multiple sets of stranded wheels (11) are rotatably installed on the multiple sets of templates (10). Both the multiple sets of templates (10) and the multiple sets of stranded wheels (11) are provided with limiting holes. The multiple sets of limiting pins (12) are inserted into the limiting holes of the multiple sets of templates (10) and the multiple sets of stranded wheels (11). The multiple sets of wire ropes (13) are installed on the multiple sets of stranded wheels (11). One end of each of the multiple sets of stranded wheels (11) is provided with a hexagonal groove.

9. A construction method for a concrete five-sided modular building as described in claim 8, characterized in that, The limiting groove at the top of the template (10) can be set to L-shape, T-shape or cross-shape according to the shape of the bottom of the pentahedral modular box (1).

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