Steel structure modular building room and construction method thereof

Abstract

The invention discloses a steel structure modular building room and a construction method thereof.The building room comprises a box module, the box module comprises a prefabricated stress floor slab, the prefabricated stress floor slab comprises a horizontally-arranged flat plate section and folded plate sections arranged on the two opposite sides of the flat plate section, and the folded plate sections are bent downwards relative to the flat plate section; and a preset vertical space is formed in the box body module between the folded plate section and the flat plate section. Through the design that the folded plate sections which are bent downwards are arranged on the two sides of the flat plate section of the prefabricated stress floor slab, the preset vertical space is formed in the box body module, and the preset horizontal space is formed between the folded plate sections and the top beam, the structural height of the module connecting position is reduced, the bearing capacity of the structure is guaranteed, and therefore the clear height of a building is effectively increased; the problem that an existing steel structure modular building is insufficient in clear height in residential buildings is solved.

Description

Technical Field

[0001] The invention relates to the technical field of modular buildings, and in particular to a steel structure modular building room and a construction method thereof. Background Art

[0002] At present, modular steel structures have been widely used in public buildings such as schools, hospitals, and hotels. However, in residential buildings such as houses and dormitories, although they have certain adaptability, they are relatively less used.

[0003] Existing steel structure modular buildings usually adopt the construction form of "bottom main frame load-bearing + top ribbed beam + corrugated plate covering". The bottom uses the steel truss floor to bear the floor's deadweight load and service load, while the top uses ribbed beams and corrugated plates to cover, mainly to meet the waterproofing and construction load requirements during construction. However, this design has the following problems:

[0004] Considering factors such as structural stress, deformation and installation process, after the upper and lower boxes of the module are assembled, the structural height at the floor is about 600mm (including the bottom main beam and the top dense rib beam). Taking a dormitory with a floor height of 3.6m as an example, after deducting the structural height, the actual net height is only 3.07m, which is far below the standard requirement of 3.4m for residential buildings. This problem of insufficient net height limits the application of modular steel structures in residential buildings.

[0005] Therefore, how to improve the net height of living space is an urgent problem to be solved. Summary of the invention

[0006] The main purpose of the present invention is to provide a steel structure modular building room and a construction method thereof to solve the above technical problems.

[0007] In a first aspect, the present invention provides a steel structure modular building room, comprising a box module, wherein the box module comprises a prefabricated load-bearing floor slab, wherein the prefabricated load-bearing floor slab comprises a horizontally arranged flat plate segment and folded plate segments arranged on opposite sides of the flat plate segment, wherein the folded plate segment is bent downward relative to the flat plate segment, so that a preset vertical space is formed inside the box module between the folded plate segment and the flat plate segment;

[0008] The box module also includes a frame, which includes a load-bearing column, a top beam and a bottom beam, wherein the top end of each load-bearing column is connected to the top beam, and the bottom end is connected to the bottom beam;

[0009] Wherein, the prefabricated load-bearing floor slab is fixedly connected to the frame through the top beam, and the folded plate section is arranged on the top of the top beam to form a preset horizontal space between the folded plate section and the top beam.

[0010] The thickness of the folded plate section is not less than 100 mm, and the folded plate section is connected to the flat plate section by integrally casting reinforced concrete.

[0011] Wherein, reinforcement is arranged in both the flat plate section and the folded plate section, and the number of reinforcements in the folded plate section is greater than the number of reinforcements in the flat plate section.

[0012] There are multiple box modules, including an upper box module and a lower box module, the bottom beam of the upper box module is arranged in a preset horizontal space of the lower box module, and there is a horizontal gap of not less than 20 mm between the bottom beam of the upper box module and the folding plate section of the lower box module.

[0013] The plurality of box modules further include box modules distributed in a horizontal direction, and an anti-leakage sealing structure is provided between two adjacent box modules in the box modules distributed in the horizontal direction.

[0014] Wherein, the anti-leakage sealing structure is arranged between the top beams of the two adjacent box modules.

[0015] Wherein, the top beam and the bottom beam are both made of steel sections.

[0016] Wherein, the width of the bottom beam is smaller than the width of the top beam.

[0017] In a second aspect, the present invention further provides a method for constructing a steel structure modular building room as described in the first aspect, comprising the following steps:

[0018] The load-bearing columns, bottom beams and top beams are assembled to form a frame;

[0019] Lifting the prefabricated load-bearing floor slab as a whole to a predetermined installation position of the frame;

[0020] The prefabricated load-bearing floor slab is fixedly connected to the frame via the top beam;

[0021] The upper box module is lifted above the lower box module, and post-grouting is performed at the connection between the upper box module and the lower box module.

[0022] Wherein, after lifting the upper box module to above the lower box module and performing post-grouting at the connection between the upper box module and the lower box module, it also includes: performing anti-leakage treatment on the joints of the box modules adjacent to each other in the horizontal direction.

[0023] The beneficial technical effect of the present invention is as follows: by arranging downwardly bent folded plate sections on both sides of the flat section of the prefabricated load-bearing floor slab, a preset vertical space is formed inside the box module, and by the design of forming a preset horizontal space between the folded plate section and the top beam, the structural height of the module connection is reduced and the bearing capacity of the structure is ensured, thereby effectively improving the net height of the building and solving the problem of insufficient net height of existing steel structure modular buildings in residential buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0025] Figure 1 A schematic cross-sectional view of a box module in a room of a steel structure modular building provided by an embodiment of the present invention;

[0026] Figure 2 A schematic cross-sectional view of a prefabricated load-bearing floor slab in a room of a modular steel structure building provided by an embodiment of the present invention;

[0027] Figure 3 A schematic cross-sectional view of a prefabricated load-bearing floor slab in a room of a modular steel structure building provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the distribution of multiple box modules in a room of a steel structure modular building provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the effects of multiple box modules in a steel structure modular building room provided by an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the construction method steps provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] In the figure: 100-box module, 10-prefabricated load-bearing floor, 11-flat plate section, 12-folded plate section, 13-reinforcement, 20-load-bearing column, 30-top beam, 40-bottom beam, 50-anti-leakage sealing structure. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0035] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0036] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] Please also refer to Figure 1-Figure 5 A steel structure modular building room provided by an embodiment of the present invention includes a box module 100, the box module 100 includes a prefabricated load-bearing floor 10, the prefabricated load-bearing floor 10 includes a horizontally arranged flat plate section 11 and a folded plate section 12 arranged on opposite sides of the flat plate section 11, the folded plate section 12 is bent downward relative to the flat plate section 11, so that a preset vertical space is formed between the folded plate section 12 and the flat plate section 11 inside the box module 100; the box module 100 also includes a frame, the frame includes load-bearing columns 20, a top beam 30 and a bottom beam 40, the top end of each load-bearing column 20 is connected to the top beam 30, and the bottom end is connected to the bottom beam 40; wherein the prefabricated load-bearing floor 10 is fixedly connected to the frame through the top beam 30, the folded plate section 12 is arranged on the top of the top beam 30, and a preset horizontal space is formed between the folded plate section 12 and the top beam 30.

[0038] In this embodiment, the box module 100 includes a prefabricated load-bearing floor 10 and a frame, and the frame includes load-bearing columns 20, top beams 30 and bottom beams 40. By optimizing the design of the box module 100, the problem of insufficient net height of residential buildings in the prior art can be effectively solved.

[0039] Specifically, the prefabricated load-bearing floor 10 includes a horizontally arranged flat plate section 11 and folded plate sections 12 arranged on opposite sides of the flat plate section 11. The folded plate section 12 is bent downward relative to the flat plate section 11. In this arrangement, a preset vertical space H1 for ensuring the use space of the building is formed between the folded plate section 12 and the bottom of the flat plate section 11, and the preset vertical space H1 can be used as the clear height space in the box module 100.

[0040] Relatively distributed load-bearing columns 20 are arranged on the bottom side of the prefabricated load-bearing floor 10. Specifically, the load-bearing columns 20 on both sides are respectively arranged in the left space and the right space at the bottom of the prefabricated load-bearing floor 10. A top beam 30 is arranged between the prefabricated load-bearing floor 10 and each load-bearing column 20, and a bottom beam 40 is arranged at the bottom end of each load-bearing column 20. Among them, the top beam 30 serves as a supporting structure of the prefabricated load-bearing floor 10, and its width should meet the requirements of the supporting structure. The top beam 30 and the bottom beam 40 are both made of steel sections and can be fixedly connected to the load-bearing columns 20 by bolt connection.

[0041] The folded plate section 12 is arranged on the top of the top beam 30, and forms a preset horizontal space between the folded plate section 12 and the top beam 30. This arrangement can reserve space for the connection between the upper and lower box modules 100, and is also conducive to installation and positioning during the construction process.

[0042] In a specific embodiment, the prefabricated load-bearing floor 10 is a C-shaped plate structure as a whole, and its C-mouth faces downward, that is, toward the inside of the box module 100. The folded plate sections 12 are two side wing parts of the C-shaped plate structure, and they are arranged on opposite sides of the flat plate section 11, which means that the two folded plate sections 12 are respectively arranged on the left and right sides of the flat plate section 11.

[0043] This embodiment forms a preset vertical space H1 by setting a folded plate section 12 on the flat plate section 11, which not only ensures the internal usable space of the room, but also ensures the overall rigidity of the prefabricated load-bearing floor 10, effectively solving the problem of insufficient net height of residential steel structure modular buildings in the prior art. In addition, by setting a preset horizontal space on the top of the box module 100 to accommodate the bottom beam 40 of the upper box module 100, a reliable connection between the upper and lower box modules 100 is achieved, thereby improving the stability of the overall structure.

[0044] In one embodiment, the thickness of the folded plate section 12 is not less than 100 mm, and the folded plate section 12 is connected to the flat plate section 11 by integrally casting reinforced concrete.

[0045] In this embodiment, by setting the thickness of the folded plate section 12 to be no less than 100 mm, on the one hand, the minimum thickness requirement of reinforced concrete components can be met to ensure the integrity and durability of the structural components; on the other hand, appropriately increasing the thickness of the folded plate section 12 can improve its ability to resist bending moments, so that the folded plate section 12 can bear greater building dead loads, live loads and construction loads, etc.

[0046] The folded plate section 12 is connected to the flat plate section 11 by integrally casting reinforced concrete. This integrated connection method can effectively ensure the integrity of the structure and avoid the connection reliability problems that may arise from the traditional later connection method. Through integral casting, not only the overall load-bearing performance of the prefabricated load-bearing floor slab 10 is improved, but also the construction process is simplified and the construction efficiency is improved.

[0047] In one embodiment, reinforcement bars 13 are disposed in both the flat plate segment 11 and the folded plate segment 12 , and the number of reinforcement bars 13 in the folded plate segment 12 is greater than the number of reinforcement bars 13 in the flat plate segment 11 .

[0048] In this embodiment, the arrangement of the reinforcement 13 is mainly based on the following considerations: on the one hand, the flat plate section 11 mainly bears the vertical load, and the arrangement of the reinforcement 13 only needs to meet the normal use requirements; on the other hand, since there is an unbalanced bending moment between the folded plate section 12 and the flat plate section 11, it is necessary to appropriately increase the number of reinforcements 13 of the folded plate section 12 to offset the unbalanced bending moment and ensure the overall bearing performance of the prefabricated load-bearing floor 10.

[0049] In one embodiment, a plurality of box modules 100 are provided, and the plurality of box modules 100 include an upper box module 100 and a lower box module 100, and the bottom beam 40 of the upper box module 100 is provided in a preset horizontal space of the lower box module 100, and a horizontal gap of not less than 20 mm is provided between the bottom beam 40 of the upper box module 100 and the folding plate section 12 of the lower box module 100.

[0050] In this embodiment, a plurality of box modules 100 are provided, including an upper box module 100 and a lower box module 100. When a multi-story building needs to be constructed, the box modules 100 can be assembled by stacking them up and down.

[0051] like Figure 2 and Figure 3 As shown, the bottom beam 40 of the upper box module 100 is arranged in the preset horizontal space of the lower box module 100. Specifically, when the two box modules 100 are stacked and installed, the bottom beam 40 of the upper box module 100 can be embedded in the preset horizontal space W1 of the lower box module 100, and the post-grouting process can be used to achieve a stable connection between the upper and lower box modules 100. It is worth noting that Figure 1As shown, the upper cabinet module 100 refers to the cabinet module 100 located at the upper layer, and the lower cabinet module 100 refers to the cabinet module 100 located at the lower layer.

[0052] In this embodiment, there is a horizontal gap of not less than 20 mm between the folded plate section 12 and the adjacent bottom beam 40. This setting is mainly based on the following considerations: Since there are inevitably construction errors in the construction process of steel structure modular buildings, reserving appropriate construction error space can effectively improve construction performance and installation efficiency.

[0053] In a specific embodiment, the width of the horizontal gap W2 is set to 20 mm-23 mm. This specific numerical range is determined based on actual construction experience, which can meet the construction error requirements without excessively affecting the overall performance of the structure.

[0054] In one embodiment, the plurality of box modules 100 further include box modules 100 distributed in the horizontal direction, and an anti-leakage sealing structure 50 is provided between two adjacent box modules 100 in the horizontally distributed box modules 100. The anti-leakage sealing structure 50 is provided between the top beams 30 of two adjacent box modules 100.

[0055] In this embodiment, if Figure 5 As shown, the box modules 100 in the steel structure modular building room are not only stacked in the vertical direction, but also include box modules 100 arranged in parallel in the horizontal direction. In order to ensure the waterproof performance of the building, an anti-leakage sealing structure 50 is arranged between two adjacent box modules 100 in the horizontal direction.

[0056] Specifically, the anti-leakage sealing structure 50 is arranged between the top beams 30 of two adjacent box modules 100. This arrangement is mainly considered to be that the top beam 30 is the supporting structure of the prefabricated load-bearing floor 10, and its connection is most prone to leakage. By arranging the anti-leakage sealing structure 50 between the top beams 30, it is possible to effectively prevent moisture from penetrating from the module connection, thereby ensuring the overall waterproof performance of the building.

[0057] The provision of such anti-leakage sealing structure 50 not only solves the problem of leakage at horizontal joints of traditional modular buildings, but also improves the overall service life of the building and provides a better living environment for residents.

[0058] In one embodiment, the width of the bottom beam 40 is smaller than the width of the top beam 30 .

[0059] In this embodiment, firstly, the top beam 30 needs to serve as a supporting structure for the prefabricated load-bearing floor 10, and its width should meet the requirements of the supporting structure; secondly, the bottom beam 40 mainly plays the role of connection and force transmission, and its width can be appropriately reduced, which can not only reduce the deadweight of the structure, but also reduce the amount of steel used and improve economy.

[0060] like Figure 6 As shown, corresponding to the above steel structure modular building room, an embodiment of the present invention also provides a construction method, which includes the following steps:

[0061] S100, the load-bearing columns 20, the bottom beams 40 and the top beams 30 are assembled to form a frame.

[0062] In this embodiment, the top beam 30 and the bottom beam 40 are first connected to the load-bearing column 20 respectively, and finally a stable frame structure is formed. This step provides basic support for the subsequent installation of the prefabricated load-bearing floor slab 10.

[0063] S200, lifting the prefabricated load-bearing floor slab 10 as a whole to a predetermined installation position of the frame.

[0064] In this embodiment, the prefabricated load-bearing floor 10 can be hoisted to a predetermined installation position for fixing by an integral lifting method. The predetermined installation position refers to the top of the top beam. The integral lifting refers to lifting the prefabricated load-bearing floor 10 (prefabricated part) as a whole to the top of the top beam, so as to facilitate the assembly of the building room.

[0065] S300, the prefabricated load-bearing floor 10 is fixedly connected to the frame via the top beam 30.

[0066] In this embodiment, the relative position of the prefabricated load-bearing floor 10 and the load-bearing column 20 should first be ensured to be accurate, and temporary fixing measures can be used for positioning. Then, the prefabricated load-bearing floor 10 and the load-bearing column 20 are reliably connected by bolt connection. The connection process is achieved through the top beam 30. Since the top beam 30 serves as a supporting structure, the reliability of the connection can be effectively ensured.

[0067] S400 , lifting the upper box module 100 to above the lower box module 100 , and performing post-grouting at the connection between the upper box module 100 and the lower box module 100 .

[0068] In this embodiment, the purpose of this step is to enhance the integrity between the upper and lower box modules 100. Specifically, the grouting area should be cleaned first to ensure that there is no debris. Then, grouting is performed using a special grouting material, and the grouting process should be performed continuously to ensure that the grouting is dense and full.

[0069] In one embodiment, after the upper box module 100 is lifted above the lower box module 100 and post-grouting is performed at the connection between the upper box module 100 and the lower box module 100, it also includes: anti-leakage treatment is performed on the joints of the adjacent box modules 100 in the horizontal direction.

[0070] In this embodiment, after the connection between the upper box module 100 and the lower box module 100 and the post-grouting process are completed, anti-leakage treatment is also required.

[0071] Specifically, after the upper box module 100 is connected to the lower box module 100, the joints of the left and right adjacent box modules 100 are treated to prevent leakage, forming a leak-proof sealing structure 50. This step includes: first, cleaning the joints that need to be treated to prevent leakage, ensuring that the surface is clean and free of debris; second, applying leak-proof sealing materials at the joints according to design requirements, ensuring that the materials are evenly and continuously applied and firmly bonded to the base layer; finally, checking the quality of the leak-proof treatment to ensure that there are no omissions or defects.

[0072] By adding anti-leakage treatment steps, rainwater can be effectively prevented from penetrating into the building from the module connections, thereby improving the overall waterproof performance of the building and extending the service life of the building.

[0073] By adopting the above construction method, it is possible to ensure that the steel structure modular building room of the embodiment of the present invention can achieve good implementation effect. The method is not only easy to operate and has high construction efficiency, but also can effectively ensure the construction quality and provide reliable protection for the safety of building use.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A steel structure modular building room, characterized in that: The box module comprises a prefabricated load-bearing floor slab, wherein the prefabricated load-bearing floor slab comprises a horizontally arranged flat plate section and folded plate sections arranged on opposite sides of the flat plate section, wherein the folded plate section is bent downward relative to the flat plate section, so that a preset vertical space is formed inside the box module between the folded plate section and the flat plate section; The box module also includes a frame, which includes a load-bearing column, a top beam and a bottom beam, wherein the top end of each load-bearing column is connected to the top beam, and the bottom end is connected to the bottom beam; Wherein, the prefabricated load-bearing floor slab is fixedly connected to the frame through the top beam, and the folded plate section is arranged on the top of the top beam to form a preset horizontal space between the folded plate section and the top beam.

2. The building room according to claim 1, characterized in that The thickness of the folded plate section is not less than 100 mm, and the folded plate section is connected to the flat plate section by integrally casting reinforced concrete.

3. The building room according to claim 1, characterized in that The flat plate section and the folded plate section are both provided with reinforcements, and the number of reinforcements in the folded plate section is greater than the number of reinforcements in the flat plate section.

4. The building room according to claim 1, characterized in that There are multiple box modules, including an upper box module and a lower box module. The bottom beam of the upper box module is arranged in a preset horizontal space of the lower box module, and there is a horizontal gap of not less than 20 mm between the bottom beam of the upper box module and the folding plate section of the lower box module.

5. The building room according to claim 4, characterized in that The plurality of box modules further include box modules distributed in a horizontal direction, and an anti-leakage sealing structure is provided between two adjacent box modules in the box modules distributed in the horizontal direction.

6. The building room according to claim 5, characterized in that The anti-leakage sealing structure is arranged between the top beams of the two adjacent box modules.

7. The building room according to claim 1, characterized in that The top beam and the bottom beam are both made of section steel.

8. A building room according to any one of claims 1 to 7, characterized in that: The width of the bottom beam is smaller than the width of the top beam.

9. A method for constructing a steel structure modular building room as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: The load-bearing columns, bottom beams and top beams are assembled to form a frame; Lifting the prefabricated load-bearing floor slab as a whole to a predetermined installation position of the frame; The prefabricated load-bearing floor slab is fixedly connected to the frame via the top beam; The upper box module is lifted above the lower box module, and post-grouting is performed at the connection between the upper box module and the lower box module.

10. The construction method according to claim 9, characterized in that: After the upper box module is lifted to above the lower box module and post-grouting is performed at the connection between the upper box module and the lower box module, the method further includes: performing anti-leakage treatment on the joints of the box modules adjacent to each other in the horizontal direction.

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