Steel structure modular building room and construction method thereof

Abstract

The application discloses a steel structure modular building room and a construction method thereof. The building room comprises a box module, and the box module comprises a prefabricated load-bearing floor. The prefabricated load-bearing floor comprises a horizontal flat plate section and folded plate sections arranged on opposite sides of the flat plate section. The folded plate sections are arranged in a downwardly bent manner relative to the flat plate section, so that a preset vertical space is formed between the folded plate sections and the flat plate section inside the box module. By arranging the downwardly bent folded plate sections on the two sides of the flat plate section of the prefabricated load-bearing floor, the preset vertical space is formed inside the box module, and the design that the preset horizontal space is formed between the folded plate sections and the top beam not only reduces the structural height of the module connection position, but also ensures the bearing capacity of the structure, thereby effectively improving the net height of the building and solving the problem of insufficient net height of the existing steel structure modular building in a residential building.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of modular building, in particular to a steel structure modular building room and a construction method thereof. BACKGROUND

[0002] At present, steel structure modular buildings are widely used in public buildings such as schools, hospitals and hotels. However, in residential buildings such as residences and dormitories, although they have certain adaptability, their application is relatively small.

[0003] The existing steel structure modular building usually adopts a structure form of "bottom main frame bearing + top dense rib beam + corrugated plate covering". The bottom bears the floor self-weight load and the use load through the steel truss floor slab, and the top adopts dense rib beam and corrugated plate covering, mainly to meet the waterproof and construction load requirements during construction. However, this design has the following problems:

[0004] Considering the factors of structure stress, deformation and installation process, after the upper and lower box bodies of the module are assembled, the structure 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 structure height, the actual net height is only 3.07m, which is far lower than the standard requirement of 3.4m for residential buildings. This problem of insufficient net height limits the application of modular steel structure in residential buildings.

[0005] Therefore, at present, how to improve the net height of the living space is a problem to be solved. SUMMARY

[0006] The main purpose of the present application 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 application provides a steel structure modular building room, comprising a box body module, the box body module comprising a prefabricated load-bearing floor, the prefabricated load-bearing floor comprising a horizontal flat plate segment and a folded plate segment arranged on opposite sides of the flat plate segment, the folded plate segment being arranged downwardly bent relative to the flat plate segment, so that a preset vertical space is formed between the folded plate segment and the flat plate segment inside the box body module;

[0008] The box body module further comprises a frame, the frame comprising a load-bearing column, a top beam and a bottom beam, the top end of each load-bearing column being connected with the top beam, and the bottom end being connected with the bottom beam.

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

[0010] The thickness of the folded plate section is not less than 100 mm, and the folded plate section is connected with the flat plate section by a whole pouring forming mode of reinforced concrete.

[0011] The flat plate section and the folded plate section are provided with reinforcement, and the number of reinforcement of the folded plate section is greater than that of the flat plate section.

[0012] The box module is provided with a plurality of upper box modules and lower box modules, the bottom beam of the upper box module is arranged in the preset horizontal space of the lower box module, and the horizontal gap between the bottom beam of the upper box module and the folded plate section of the lower box module is not less than 20 mm.

[0013] The box module is provided with a plurality of upper box modules and lower box modules, the bottom beam of the upper box module is arranged in the preset horizontal space of the lower box module, and the horizontal gap between the bottom beam of the upper box module and the folded plate section of the lower box module is not less than 20 mm.

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

[0015] The top beam and the bottom beam are made of profiled steel.

[0016] The width of the bottom beam is less than that of the top beam.

[0017] In a second aspect, the application further provides a construction method of the steel structure modular building room.

[0018] The stress column, the bottom beam and the top beam are assembled to form a frame.

[0019] The prefabricated stress floor is lifted to a predetermined installation position of the frame.

[0020] The prefabricated stress floor is fixedly connected to the frame through 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] After 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, the splicing part of the adjacent box modules in the horizontal direction is subjected to anti-leakage treatment.

[0023] The beneficial technical effects of the present invention are as follows: by arranging downward-bending 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 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 following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these 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 showing the effects of multiple box modules in a room of a modular steel structure building provided by an embodiment of the present invention;

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

[0031] Description of reference numerals:

[0032] In the figure: 100-box module, 10-prefabricated load-bearing floor slab, 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] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0034] It should be understood that the terms "comprising" and "including" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

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

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

[0037] Please refer to Figures 1-5 The steel structure modular building room provided by the embodiments of the present application comprises a box module 100, the box module 100 comprises a prefabricated load-bearing floor 10, the prefabricated load-bearing floor 10 comprises a horizontal 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 arranged downwardly bent 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 further comprises a frame, the frame comprises load-bearing columns 20, top beams 30 and bottom beams 40, the top end of each load-bearing column 20 is connected with a top beam 30, and the bottom end is connected with a bottom beam 40; wherein the prefabricated load-bearing floor 10 is fixedly connected to the frame through the top beams 30, the folded plate section 12 is arranged on the top of the top beams 30 and forms a preset horizontal space between the folded plate section 12 and the top beams 30.

[0038] In the present embodiment, the box module 100 comprises the prefabricated load-bearing floor 10 and the frame, and the frame comprises the load-bearing columns 20, the top beams 30 and the bottom beams 40. Through the optimized design of the box module 100, the problem of insufficient net height of the existing residential buildings can be effectively solved.

[0039] Specifically, the prefabricated force floor 10 comprises a horizontally arranged flat segment 11 and two folded segments 12 arranged on opposite sides of the flat segment 11. The folded segments 12 are arranged downwardly bent relative to the flat segment 11. Through this arrangement, the folded segments 12 and the bottom of the flat segment 11 form a preset vertical space H1 for ensuring the building use space, which can be used as the net height space in the box module 100.

[0040] The force columns 20 are arranged on the bottom side of the prefabricated force floor 10 in a distributed manner. Specifically, the two force columns 20 are arranged on the left and right spaces at the bottom of the prefabricated force floor 10, respectively. The top beams 30 are arranged between the prefabricated force floor 10 and each force column 20, and the bottom beams 40 are arranged at the bottom ends of the force columns 20, respectively. The top beams 30 serve as the supporting structure of the prefabricated force floor 10, and the width thereof should meet the supporting structure requirements. The top beams 30 and the bottom beams 40 are made of profiled steel and are fixedly connected to the force columns 20 by means of bolt connection.

[0041] The folded segments 12 are arranged on the top of the top beams 30 and form a preset horizontal space between the folded segments 12 and the top beams 30. This arrangement can not only reserve space for the connection between the upper and lower box modules 100, but also facilitate the installation and positioning during the construction process.

[0042] In an embodiment, the prefabricated force floor 10 has a C-shaped plate structure, and the C-shaped opening faces downward, i.e., toward the inside of the box module 100. The folded segments 12 are the two side wing portions of the C-shaped plate structure, and the two folded segments 12 are arranged on the left and right sides of the flat segment 11, respectively.

[0043] The embodiment forms the preset vertical space H1 by arranging the folded segments 12 on the flat segment 11, which not only ensures the internal use space of the room, but also ensures the overall rigidity of the prefabricated force floor 10, effectively solving the problem of insufficient net height of the existing residential steel structure modular building. In addition, by arranging the preset horizontal space on the top of the box module 100 to accommodate the bottom beams 40 of the upper box module 100, reliable connection between the upper and lower box modules 100 is achieved, and the stability of the overall structure is improved.

[0044] In an embodiment, the thickness of the folded segment 12 is not less than 100 mm, and the folded segment 12 is integrally formed with the flat segment 11 by reinforced concrete pouring.

[0045] In this embodiment, by setting the thickness of the folded plate section 12 to no less than 100 mm, on the one hand, the minimum thickness requirement of reinforced concrete components can be met, ensuring 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 using a monolithic cast of reinforced concrete. This integrated connection effectively ensures structural integrity and avoids the reliability issues that can arise with traditional post-cast connections. This monolithic casting not only improves the overall load-bearing performance of the prefabricated load-bearing floor slab 10, but also simplifies the construction process and increases efficiency.

[0047] In one embodiment, reinforcement bars 13 are provided 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 reinforcement 13 of the folded plate section 12 to offset this unbalanced bending moment and ensure the overall load-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. The bottom beam 40 of the upper box module 100 is provided in a preset horizontal space of the lower box module 100, and there is a horizontal gap of not less than 20 mm 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 set in the preset horizontal space of the lower box module 100. Specifically, when the two box modules 100 are stacked up 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 achieve a stable connection between the upper and lower box modules 100. It is worth noting that, if Figure 1As shown, the upper-layer box module 100 refers to the box module 100 located at the upper layer, and the lower-layer box module 100 refers to the box module 100 located at the lower layer.

[0052] In the embodiment, the horizontal gap between the folded plate section 12 and the adjacent bottom beam 40 is not less than 20 mm. This arrangement is mainly based on the following consideration: since the steel structure modular building inevitably has construction errors during construction, reserving appropriate construction error space can effectively improve the construction performance and improve the installation efficiency.

[0053] In a specific embodiment, the width of the horizontal gap W2 is set to 20-23 mm. This specific numerical range is determined based on actual construction experience, which can not only meet the construction error requirement, but also not excessively affect the overall performance of the structure.

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

[0055] In the embodiment, as shown, Figure 5 The box modules 100 in the steel structure modular building room are not only arranged in the vertical direction, but also include horizontally distributed box modules 100. In order to ensure the waterproof performance of the building, a leakage-proof sealing structure 50 is arranged between two adjacent box modules 100 in the horizontal direction.

[0056] Specifically, the leakage-proof sealing structure 50 is arranged between the top beams 30 of the two adjacent box modules 100. This arrangement mainly takes into account that the top beam 30, as the supporting structure of the prefabricated load-bearing floor 10, is most prone to leakage at the connection. By arranging the leakage-proof sealing structure 50 between the top beams 30, water can be effectively prevented from seeping from the module connection, thereby ensuring the overall waterproof performance of the building.

[0057] The arrangement of such a leakage-proof sealing structure 50 not only solves the problem of leakage at the horizontal joint of the traditional modular building, but also improves the overall service life of the building, providing a better living environment for the occupants.

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

[0059] In the embodiment, first, the roof beam 30 needs to be used as the supporting structure of the prefabricated load-bearing floor 10, and the width thereof should meet the requirement of the supporting structure; second, the bottom beam 40 mainly plays a role of connection and force transmission, and the width thereof can be appropriately reduced, so that the structural self-weight and the steel consumption can be reduced, and the economy can be improved.

[0060] As shown in Figure 6 corresponding to the above steel structure modular building room, the embodiment of the present application further provides a construction method, which comprises the following steps:

[0061] S100, the load-bearing column 20, the bottom beam 40 and the roof beam 30 are assembled to form a frame.

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

[0063] S200, the prefabricated load-bearing floor 10 is integrally lifted to a predetermined installation position of the frame.

[0064] In the embodiment, the prefabricated load-bearing floor 10 can be lifted to the predetermined installation position for fixation by the integral lifting mode. The predetermined installation position refers to the upper side of the roof beam. The integral lifting refers to lifting the prefabricated load-bearing floor 10 (prefabricated part) to the upper side of the roof 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 through the roof beam 30.

[0066] In the embodiment, first, the relative position between the prefabricated load-bearing floor 10 and the load-bearing column 20 should be ensured to be accurate, and a temporary fixation measure can be used for positioning. Then, the prefabricated load-bearing floor 10 and the load-bearing column 20 are reliably connected by means of bolt connection. The connection process is realized through the roof beam 30, and since the roof beam 30 is used as the supporting structure, the reliability of the connection can be effectively ensured.

[0067] S400, the upper layer box module 100 is lifted to the upper side of the lower layer box module 100, and post-grouting is performed at the connection position of the upper layer box module 100 and the lower layer box module 100.

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

[0069] In an embodiment, after the upper box module 100 is lifted above the lower box module 100 and the post-grouting at the joint of the upper box module 100 and the lower box module 100 is completed, the method further comprises: performing anti-leakage treatment on the joint of horizontally adjacent box modules 100.

[0070] In the embodiment, after the connection and post-grouting of the upper box module 100 and the lower box module 100 are completed, the anti-leakage treatment is further needed.

[0071] Specifically, after the connection of the upper box module 100 and the lower box module 100 is completed, the anti-leakage treatment is performed on the joint of left and right adjacent box modules 100 to form an anti-leakage sealing structure 50. The step comprises: first, cleaning the joint part needing anti-leakage treatment to ensure the surface is clean and free of sundries; second, applying anti-leakage sealing material at the joint according to the design requirements to ensure that the material is evenly and continuously applied and firmly bonded with the base; and finally, checking the quality of the anti-leakage treatment to ensure that there is no omission and defect.

[0072] By adding the anti-leakage treatment step, rainwater and the like can be effectively prevented from penetrating into the building from the joint of the modules, the overall waterproof performance of the building is improved, and the service life of the building is prolonged.

[0073] By using the above construction method, the steel structure modular building room of the embodiment of the present application can be ensured to have good implementation effect. The method not only has simple operation and high construction efficiency, but also can effectively ensure the construction quality, and provides reliable guarantee for the use safety of the building.

[0074] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A steel structure modular building room, characterized in that: The box module includes a prefabricated load-bearing floor slab, the prefabricated load-bearing floor slab includes a horizontally arranged flat plate segment and folded plate segments arranged on opposite sides of the flat plate segment, the folded plate segments are bent downward relative to the flat plate segment, so that a preset vertical space is formed between the folded plate segment and the flat plate segment inside the box module; The box module further 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 and forms a preset horizontal space between the folded plate section and the top beam; 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.

2. The steel structure modular 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 steel structure modular building room according to claim 1, characterized in that: Reinforcement bars are provided in both the flat plate section and the folded plate section, and the number of reinforcement bars in the folded plate section is greater than that in the flat plate section.

4. The steel structure modular building room according to claim 1, characterized in that: There is a horizontal gap of not less than 20 mm between the bottom beam of the upper box module and the folded plate section of the lower box module.

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

8. The steel structure modular 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 according to 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 to 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 method for constructing a steel structure modular building room 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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