Steel structure modular building suite and construction method thereof

Abstract

The invention discloses a steel structure modular building suite and a construction method thereof.The steel structure modular building suite comprises a box body module, the box body module comprises a frame body and a box top prefabricated integral floor slab connected with the frame body, and the box top prefabricated integral floor slab comprises a prefabricated stress floor slab and a corrugated steel plate which are adjacent in the horizontal direction; the prefabricated stress floor slab comprises a flat plate section and folded plate sections extending downwards from the two opposite sides of the flat plate section, the folded plate sections are connected with the frame body, and a first preset vertical space is jointly formed by the folded plate sections and the flat plate section. Through the structural design that a first preset vertical space capable of serving as the clear height in a building is formed above a frame main body through a flat plate section of a prefabricated stress floor slab and a folded plate section extending downwards, and a corrugated steel plate and the folded plate section form a second preset vertical space, the structural height of the module connecting position is reduced; the corrugated steel plate has a permanent structure function on the basis of meeting construction requirements, so that the technical problems of insufficient building clear height and material waste are solved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of modular buildings, and in particular to a steel structure modular building suite 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 application potential, their promotion is relatively limited.

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

[0004] 1. After the upper and lower boxes of the module are assembled, the structural height at the floor is relatively large (about 600mm), which seriously affects the net height of the building. Taking a dormitory with a floor height of 3.6m as an example, after considering the structural height and the building surface, the actual net height can only reach 3.07m, which cannot meet the net height requirement of 3.4m for the dormitory;

[0005] 2. The dense-ribbed beams and corrugated plates (about 450-550kg) in the box-top structure are only used to meet the needs of the construction phase and do not assume the main structural function during the entire life cycle of the building, resulting in material waste and increased construction costs.

[0006] These problems directly restrict the promotion and application of steel structure modular buildings in residential buildings. Summary of the invention

[0007] The main purpose of the present invention is to provide a steel structure modular building suite and a construction method thereof to solve the above technical problems.

[0008] In a first aspect, the present invention provides a modular steel structure building suite, comprising a box module, wherein the box module comprises a frame body and a box top prefabricated integral floor slab connected to the frame body, wherein the box top prefabricated integral floor slab comprises a prefabricated load-bearing floor slab and a corrugated steel plate adjacent in a horizontal direction;

[0009] The prefabricated load-bearing floor slab comprises a flat plate section and folded plate sections extending downward from opposite sides of the flat plate section, wherein the folded plate sections are connected to the frame body and together with the flat plate section form a first preset vertical space;

[0010] The opposite sides of the corrugated steel plate are respectively connected to the folded plate section and the frame body, and the corrugated steel plate and the folded plate section form a second preset vertical space above the box module.

[0011] Among them, the frame body includes relatively distributed load-bearing columns, and a first top beam and a second top beam are respectively arranged between the top of the load-bearing column and the folded plate section and the corrugated steel plate, and a bottom beam is respectively arranged at the bottom end of the load-bearing column; the folded plate section is arranged on the top of the first top beam, and forms a first preset horizontal space between the folded plate section and the first top beam.

[0012] Wherein, the box module also includes a steel truss floor deck, which is arranged in the frame body and connected to the top of the bottom beam.

[0013] Among them, the box module includes an upper box module and a lower box module stacked up and down; the steel truss floor deck of the upper box module is arranged in the second preset vertical space of the lower box module; and a second preset horizontal space is formed between the steel truss floor deck of the upper box module and the second top beam of the lower box module.

[0014] Wherein, the bottom beam of the upper box module is respectively embedded in the first preset horizontal space and the second preset horizontal space of the lower box module.

[0015] The thickness of the folded plate section is not less than 100 mm, and the folded plate section is integrally formed with the flat plate section by integrally casting reinforced concrete.

[0016] Wherein, the width of the bottom beam is smaller than the width of the first top beam and the second top beam respectively.

[0017] Wherein, a supporting side plate is arranged between the connection between the prefabricated load-bearing floor slab and the corrugated steel plate and the steel bar truss floor deck.

[0018] Wherein, a leakage-proof sealing structure is provided at the connection between the upper box module and the lower box module.

[0019] In a second aspect, the present invention further provides a construction method of a steel structure modular building suite as described in the first aspect, comprising the following steps:

[0020] The load-bearing columns, the first top beam, the second top beam and the bottom beam are assembled to form the main frame;

[0021] Lifting the prefabricated integral floor slab on the top of the box to a predetermined installation position of the frame body;

[0022] The box top prefabricated integral floor slab is fixedly connected to the frame body through the first top beam and the second top beam;

[0023] The upper box module is lifted to above the lower box module, and grouting is performed at the connection between the upper box module and the lower box module.

[0024] The beneficial technical effects of the present invention are as follows: a first preset vertical space that can be used as the net height in the building is formed above the frame body by prefabricating the flat plate section of the load-bearing floor and the folded plate section extending downward, and a structural design in which the corrugated steel plate and the folded plate section form a second preset vertical space. While reducing the structural height at the module connection, the corrugated steel plate has a permanent structural function on the basis of meeting construction requirements, thereby solving the technical problems of insufficient building net height and material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A schematic cross-sectional view of upper and lower box modules in a steel structure modular building suite provided by an embodiment of the present invention;

[0027] Figure 2 A schematic cross-sectional view of a box module in a steel structure modular building suite provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a box structure in a steel structure modular building suite provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of a box structure in a steel structure modular building suite provided by an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the effects of the upper box module and the lower box module in the steel structure modular building suite provided by an embodiment of the present invention;

[0031] Figure 6 A schematic flow chart of a construction method for a steel structure modular building suite provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] In the figure: 100-box module, 10-prefabricated load-bearing floor, 11-flat plate section, 12-folded plate section, 13-reinforcement, 20-corrugated steel plate, 30-frame body, 31-load-bearing column, 32-first top beam, 33-second top beam, 34-bottom beam, 40-reinforced truss floor deck, 50-supporting side plate, 60-anti-leakage sealing structure. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] like Figure 1-Figure 5 As shown, an embodiment of the present invention provides a steel structure modular building suite, including a box module 100, the box module 100 includes a frame body 30 and a prefabricated integral floor on the top of the box connected to the frame body 30, the prefabricated integral floor on the top of the box includes a prefabricated load-bearing floor 10 and a corrugated steel plate 20 adjacent in the horizontal direction; the prefabricated load-bearing floor 10 includes a flat plate section 11 and a folded plate section 12 extending downward from the opposite sides of the flat plate section 11, the folded plate section 12 is connected to the frame body 30, and together with the flat plate section 11 forms a first preset vertical space; the opposite sides of the corrugated steel plate 20 are respectively connected to the folded plate section 12 and the frame body 30, and the corrugated steel plate 20 and the folded plate section 12 form a second preset vertical space above the box module 100.

[0039] In this embodiment, the building suite includes a box module 100. The box module 100 is mainly composed of a frame body 30 and a box top prefabricated integral floor connected to the frame body 30, wherein the box top prefabricated integral floor includes a prefabricated load-bearing floor 10 and a corrugated steel plate 20 adjacently arranged in a horizontal direction, forming a composite box top prefabricated integral floor. The "adjacent arrangement" here specifically means that the prefabricated load-bearing floor 10 and the corrugated steel plate 20 are arranged adjacently on the same horizontal plane, wherein the prefabricated load-bearing floor 10 is arranged above the main use space of the suite (such as a bedroom, etc.), and the corrugated steel plate 20 is arranged above the secondary space (such as a bathroom, etc.). This arrangement fully takes into account the differentiated requirements of different functional spaces for structural performance.

[0040] 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 and connected to the frame body 30. This design allows the folded plate section 12 and the flat plate section 11 to form a first preset vertical space above the frame body 30, and the first preset vertical space can be used as the clear height space in the box module 100 to solve the technical problem of insufficient building clear height due to excessive structural height (about 600mm) at the module connection in traditional steel structure modular buildings. The opposite sides here refer to the two opposite edge positions of the flat plate section 11.

[0041] The opposite sides of the corrugated steel plate 20 are respectively connected to the folding plate section 12 and the frame body 30, so that the corrugated steel plate 20 and the folding plate section 12 form a second preset vertical space above the box module 100. This design can not only meet the waterproof and load-bearing requirements during construction, but also reserve installation space for the steel truss floor deck 40 of the upper box module 100. Compared with the traditional multi-rib beam and corrugated plate design, the corrugated steel plate 20 in this embodiment can not only meet the functional requirements during construction, but also serve as a permanent structural member, avoiding material waste. The opposite sides here refer to the two opposite edges of the corrugated steel plate in the horizontal direction. That is, one side of the corrugated steel plate 20 is connected to the folding plate section 12, and the other side is connected to the frame body 30.

[0042] The design of the steel structure modular building suite fully considers the needs of assembly construction. The prefabricated load-bearing floor slab 10 can be prefabricated in the factory and directly installed after being transported to the site. The provision of the corrugated steel plate 20 simplifies the construction process and improves the construction efficiency. The reasonable combination of the prefabricated load-bearing floor slab 10 and the corrugated steel plate 20 not only ensures the overall performance of the structure, but also significantly improves the internal net height effect of the building.

[0043] Through the above embodiment, the structural height of the module connection is reduced, so that a larger net height space can be obtained in the dormitory room with a floor height of 3.6m, thereby meeting the net height requirement of 3.4m for the dormitory. At the same time, the composite box-top prefabricated integral floor slab cancels the ribbed beam and corrugated plate structure (about 450-550kg) in the traditional design that is only used to meet the needs of the construction stage, and instead adopts a permanent structure that can simultaneously meet temporary needs during construction and the bearing requirements of the entire life cycle of the building. This can reduce the amount of materials used and reduce construction costs.

[0044] In one embodiment, the frame body 30 includes relatively distributed load-bearing columns 31, and a first top beam 32 and a second top beam 33 are respectively arranged between the top of the load-bearing column 31 and the folded plate section 12 and the corrugated steel plate 20, and a bottom beam 34 is respectively arranged at the bottom end of the load-bearing column 31; the folded plate section 12 is arranged at the top of the first top beam 32, and forms a first preset horizontal space between the folded plate section 12 and the first top beam 32.

[0045] In this embodiment, the frame body 30 includes relatively distributed load-bearing columns 31, which not only bear the vertical load of the entire box module 100, but also provide the necessary lateral rigidity. In order to achieve reliable connection between the prefabricated load-bearing floor 10 and the corrugated steel plate 20 and the frame body 30, a first top beam 32 and a second top beam 33 are respectively arranged at the top of the load-bearing column 31, wherein the first top beam 32 is fixedly connected to the folded plate section 12, and the second top beam 33 is fixedly connected to the corrugated steel plate 20. A bottom beam 34 is arranged at the bottom end of the load-bearing column 31 to support the entire box module 100.

[0046] Specifically, the folding plate section 12 is arranged on the top of the first top beam 32, and forms a first preset horizontal space with the first top beam 32. This arrangement ensures reliable connection between the folding plate section 12 and the frame body 30 on the one hand, and on the other hand, by reserving the first preset horizontal space, sufficient installation and adjustment space is reserved for subsequent construction. The setting of the first preset horizontal space allows the positional relationship between the components to be better coordinated during the installation of the box module 100, thereby improving the construction accuracy.

[0047] The structural design of the frame body 30 fully considers the characteristics of modular buildings, and forms a complete force-bearing system through the reasonable arrangement of the load-bearing columns 31, the top beams and the bottom beams 34. At the same time, the setting of the preset horizontal space also provides convenient conditions for on-site installation.

[0048] In one embodiment, the box module 100 further includes a steel truss floor deck 40 . The steel truss floor deck 40 is disposed in the frame body 30 and connected to the top of the bottom beam 34 .

[0049] In this embodiment, the box module 100 further includes a steel truss floor deck 40. The steel truss floor deck 40 is disposed inside the frame body 30 and connected to the top of the bottom beam 34, and is mainly used to form a floor structure to bear the floor's own weight and use load.

[0050] Specifically, the steel truss floor deck 40 is prefabricated in a factory, and its specifications and dimensions are determined according to actual design requirements. The steel truss floor deck 40 is fixed to the top of the bottom beam 34 by a reliable connection method to form a stable floor load-bearing component.

[0051] In this embodiment, the steel bar truss floor deck 40 is the same as the prefabricated load-bearing floor slab 10 and is also a factory prefabricated component.

[0052] In one embodiment, the box module 100 includes an upper box module 100 and a lower box module 100 stacked up and down; the steel truss floor deck 40 of the upper box module 100 is arranged in the second preset vertical space of the lower box module 100; and a second preset horizontal space is formed between the steel truss floor deck 40 of the upper box module 100 and the second top beam 33 of the lower box module 100.

[0053] In this embodiment, the plurality of box modules 100 respectively include an upper box module 100 and a lower box module 100. Through this vertical stacking method, a multi-story building structure can be constructed.

[0054] Specifically, the steel truss floor deck 40 of the upper box module 100 is arranged in the second preset vertical space of the lower box module 100. That is to say, the second preset vertical space formed by the corrugated steel plate 20 and the folded plate section 12 in the lower box module 100 not only meets the waterproof and load-bearing requirements during construction, but also provides installation space for the steel truss floor deck 40 of the upper box module 100. This design makes full use of the space between modules and effectively reduces the total height of the structure.

[0055] A second preset horizontal space is formed between the steel truss floor deck 40 of the upper box module 100 and the second top beam 33 of the lower box module 100. The preset horizontal space is mainly used to accommodate the bottom beam 34 of the upper box module 100, so as to achieve a reliable connection between the upper and lower box modules 100. Through this design, the integrity of the structure is guaranteed and the necessary construction and installation space is provided.

[0056] This module stacking method realizes the effective connection between the upper and lower box modules 100 by reasonably arranging the preset space to accommodate the connecting components, and also solves the problem of excessive structural height at the connection of traditional steel structure modular buildings.

[0057] In one embodiment, it is characterized in that the bottom beam 34 of the upper box module 100 is respectively embedded in the first preset horizontal space and the second preset horizontal space of the lower box module 100.

[0058] In this embodiment, at the connection between the upper box module 100 and the lower box module 100, the bottom beam 34 is respectively placed in the preset horizontal space of the lower box module 100, thereby optimizing the structural height. The first preset horizontal space is the space formed between the folded plate section 12 and the first top beam 32, and the second preset horizontal space is the space formed between the steel truss floor deck 40 and the second top beam 33. This design enables the bottom beam 34 to be effectively "hidden" in the reserved space, avoiding the problem of increased structural height caused by the bottom beam 34 in the traditional design.

[0059] This arrangement makes full use of the existing preset horizontal space without increasing the structural height; by embedding the bottom beam 34 into the preset horizontal space, a compact connection between the upper and lower box modules 100 is achieved.

[0060] In one embodiment, the thickness of the folded plate section 12 is not less than 100 mm, and the folded plate section 12 is integrally formed with the flat plate section 11 by integrally casting reinforced concrete.

[0061] 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.

[0062] In terms of construction technology, the folded plate section 12 is connected to the flat plate section 11 by integrally casting reinforced concrete. This integral casting construction method can ensure a reliable integral connection between the folded plate section 12 and the flat plate section 11, avoiding the connection reliability problems that may exist in the splicing of traditional prefabricated components. During the casting process, it is necessary to arrange the steel bars reasonably, especially at the connection part between the folded plate section 12 and the flat plate section 11, and the reinforcement 13 should be appropriately strengthened to offset the unbalanced bending moment. Through this integral casting process, the integrity and bearing performance of the structure can be effectively guaranteed.

[0063] In a specific embodiment, the flat plate section 11 and the folded plate section 12 are both provided with reinforcement 13, and the number of reinforcement 13 of the folded plate section 12 is greater than the number of reinforcement 13 of the flat plate section 11. This arrangement of reinforcement 13 is mainly based on the following considerations: on the one hand, the flat plate section 11 mainly bears vertical loads, and the arrangement of reinforcement 13 only needs to meet 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 the unbalanced bending moment and ensure the overall bearing performance of the prefabricated load-bearing floor 10.

[0064] In one embodiment, the width of the bottom beam 34 is smaller than the width of the first top beam 32 and the second top beam 33 .

[0065] In this embodiment, the (first and second) top beams need to provide sufficient support width for the bottom beam 34 of the upper box module 100, while also meeting the requirements of construction and installation. By appropriately widening the top beam, a larger positioning and adjustment space can be provided for the bottom beam 34 of the upper box module 100, facilitating on-site installation and position adjustment.

[0066] Secondly, the bottom beam 34 mainly bears the vertical load from the upper structure and transfers it to the lower structure. Since the bottom beam 34 is set in the preset horizontal space, its width should be adapted to the preset space. By reducing the width of the bottom beam 34, it can be better embedded in the preset horizontal space, thereby achieving a compact connection of the structure.

[0067] This differentiated beam width design not only meets the structural force requirements, but also improves the operability of construction. It is a design that takes into account both structural performance and construction convenience.

[0068] In one embodiment, a supporting side plate 50 is provided between the connection between the prefabricated load-bearing floor slab 10 and the corrugated steel plate 20 and the steel bar truss floor deck 40 .

[0069] In this embodiment, in order to enhance the structural stability of the connection between the prefabricated load-bearing floor 10 and the corrugated steel plate 20 and to separate the space inside the box module 100, a supporting side plate 50 is arranged between the connection between the prefabricated load-bearing floor 10 and the corrugated steel plate 20 and the steel truss floor deck 40.

[0070] The supporting side panels 50 provide additional support for the connection between the prefabricated load-bearing floor 10 and the corrugated steel plate 20, thereby enhancing the stability of the connection; secondly, the supporting side panels 50 can also divide the space within the box module 100, so that the space below the prefabricated load-bearing floor 10 can be used as a dormitory, and the space below the corrugated steel plate 20 can be used as a bathroom.

[0071] In one embodiment, an anti-leakage sealing structure 60 is provided at the connection between the upper box module 100 and the lower box module 100 .

[0072] In this embodiment, an anti-leakage sealing structure 60 is provided between the upper box module 100 and the lower box module 100. Specifically, the anti-leakage sealing structure 60 is provided between the top beam and the corresponding first top beam 32 and second top beam 33, and between the steel truss floor deck 40 of the upper box module 100 and the corrugated steel plate 20 thereunder.

[0073] The provision of such anti-leakage sealing structure 60 not only solves the problem of leakage at the joints of traditional modular buildings, but also increases the overall service life of the building, providing a better living environment for residents.

[0074] like Figure 6 As shown, corresponding to the above steel structure modular building suite, an embodiment of the present invention further provides a construction method of a steel structure modular building suite, and the construction method includes the following steps:

[0075] S100, the load-bearing column 31, the first top beam 32, the second top beam 33 and the bottom beam 34 are assembled to form the frame body 30. Specifically, the first top beam 32, the second top beam 33 and the bottom beam 34 are first connected to the load-bearing column 31 respectively, and finally a stable frame structure is formed. This step provides basic support for the installation of the subsequent box top prefabricated integral floor slab.

[0076] S200, lifting the prefabricated integral floor slab on the top of the box to the predetermined installation position of the frame body 30. Specifically, the prefabricated load-bearing floor slab 10 and the corrugated steel plate 20 are lifted as a whole to the predetermined installation position. Since the prefabricated load-bearing floor slab 10 is produced in a factory prefabrication method, the product quality can be guaranteed. At the same time, the installation by lifting the whole can improve the construction efficiency and reduce the amount of on-site work.

[0077] S300, the box top prefabricated integral floor is fixedly connected to the frame body 30 through the first top beam 32 and the second top beam 33. Specifically, the folded plate section 12 of the prefabricated load-bearing floor 10 is fixedly connected to the frame body 30 through the first top beam 32, and the corrugated steel plate 20 is fixedly connected to the frame body 30 through the second top beam 33.

[0078] S400, lift the upper box module 100 to the top of the lower box module 100, and perform grouting at the connection between the upper box module 100 and the lower box module 100. Specifically, hoist the upper box module 100 above the lower box module 100, so that the steel truss floor deck 40 of the upper box module 100 enters the second preset vertical space of the lower box module 100, and the bottom beam 34 of the upper box module 100 is embedded in the first preset horizontal space and the second preset horizontal space of the lower box module 100; perform grouting at the connection between the upper box module 100 and the lower box module 100 to form an integral connection.

[0079] Through the above construction steps, the rapid installation and reliable connection of steel structure modular building suites can be achieved. This construction method not only improves the construction efficiency, but also ensures the construction quality. At the same time, by adopting the method of lifting and installing the box-top prefabricated integral floor slab, combined with the composite structure design of the prefabricated load-bearing floor slab 10 and the corrugated steel plate 20, it can: effectively reduce the structural height of the module connection; cancel the ribbed beam and corrugated plate structure (about 450-550kg) that is only used in the construction stage in the traditional design, reducing the material consumption and construction cost.

[0080] In this embodiment, during the manufacturing stage of the prefabricated components (box top prefabricated integral floor), a grouting groove needs to be reserved at the bottom of the folded plate section 12 of the prefabricated load-bearing floor 10. The position of the grouting groove should correspond to the position of the top bolts of the steel beams (the first top beam 32 and the second top beam 33).

[0081] During actual construction, first use measurement and layout to ensure that the prefabricated floor slabs are accurately positioned, and set up necessary temporary supports to ensure stability during construction. After the components are in place, the reserved gaps, the alignment of the grouting grooves and the studs should be checked. The grouting construction adopts the pressure grouting method to ensure that the grouting material can be fully filled. During construction, start from one end of the grouting groove and advance step by step. Observe the flow of the grouting material through the overflow holes to ensure that the grouting material completely fills the grouting groove.

[0082] Through the above grouting connection method, the prefabricated integral floor slab on the top of the box can be reliably connected with the steel beam to form an integral force-bearing system. After the grouting connection is completed, the entire box structure is formed into a whole, which can bear the force synergistically, thereby improving the overall performance and service life of the building.

[0083] 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 suite, characterized in that: It comprises a box module, wherein the box module comprises a frame body and a box top prefabricated integral floor slab connected to the frame body, wherein the box top prefabricated integral floor slab comprises a prefabricated load-bearing floor slab and a corrugated steel plate adjacent in a horizontal direction; The prefabricated load-bearing floor slab comprises a flat plate section and folded plate sections extending downward from opposite sides of the flat plate section, wherein the folded plate sections are connected to the frame body and together with the flat plate section form a first preset vertical space; The opposite sides of the corrugated steel plate are respectively connected to the folded plate section and the frame body, and the corrugated steel plate and the folded plate section form a second preset vertical space above the box module.

2. The building suite according to claim 1, characterized in that: The frame body includes relatively distributed load-bearing columns, a first top beam and a second top beam are respectively arranged between the top ends of the load-bearing columns and the folded plate section and the corrugated steel plate, and a bottom beam is respectively arranged at the bottom ends of the load-bearing columns; the folded plate section is arranged on the top of the first top beam, and forms a first preset horizontal space between the folded plate section and the first top beam.

3. The building suite according to claim 2, characterized in that: The box module also includes a steel truss floor deck, which is arranged in the frame body and connected to the top of the bottom beam.

4. The building suite according to claim 3, characterized in that: The box module includes an upper box module and a lower box module stacked up and down; the steel truss floor deck of the upper box module is arranged in the second preset vertical space of the lower box module; a second preset horizontal space is formed between the steel truss floor deck of the upper box module and the second top beam of the lower box module.

5. The building suite according to claim 4, characterized in that: The bottom beam of the upper box module is respectively embedded in the first preset horizontal space and the second preset horizontal space of the lower box module.

6. The building suite according to claim 5, characterized in that: The thickness of the folded plate section is not less than 100 mm, and the folded plate section is integrally formed with the flat plate section by integrally casting reinforced concrete.

7. The building suite according to claim 6, characterized in that: The width of the bottom beam is smaller than the width of the first top beam and the second top beam respectively.

8. The building suite according to claim 7, characterized in that: A supporting side plate is arranged between the connection between the prefabricated load-bearing floor slab and the corrugated steel plate and the steel bar truss floor deck.

9. The building suite according to any one of claims 4 to 8, characterized in that: An anti-leakage sealing structure is provided at the connection between the upper box module and the lower box module.

10. A construction method for a steel structure modular building suite according to any one of claims 1 to 9, characterized in that: The following steps are involved: The load-bearing columns, the first top beam, the second top beam and the bottom beam are assembled to form the main frame; Lifting the prefabricated integral floor slab on the top of the box to a predetermined installation position of the frame body; The box top prefabricated integral floor slab is fixedly connected to the frame body through the first top beam and the second top beam; The upper box module is lifted to above the lower box module, and grouting is performed at the connection between the upper box module and the lower box module.

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