A structural system comprising steel structural modules with composite vertical members and other lateral force resisting members

Abstract

The utility model discloses a kind of steel structure module and other lateral force resisting member's structure system containing combined vertical component, including multiple steel structure module boxes, multiple the steel structure module boxes are stacked along vertical and are spliced along horizontal to form multiple floors;Multiple combined vertical components, each the combined vertical component is set between the structural column of horizontally adjacent the steel structure module box and penetrates the multiple floors;Cast-in-place concrete floor, the cast-in-place concrete floor whole pours the steel structure module box and the combined vertical component of same floor;And other lateral force resisting member.The utility model is based on factory integrated production, steel structure module box of on-site assembly, after preliminary connection by connector and node plate on site, finally by integrated roof, combined vertical component, other lateral force resisting member whole pouring, form steel stack box (frame) shear wall composite structure system.

Description

Technical Field

[0001] This utility model relates to the field of building structure engineering technology, and in particular to a structural system containing a steel structure module with combined vertical components and other lateral force resisting components. Background Technology

[0002] Modular steel structure buildings are a new type of industrialized building system that integrates the main steel structure, enclosure system, electromechanical pipelines, and interior decoration in a factory before transporting them to the site for assembly. This system is being widely promoted due to its advantages such as being environmentally friendly, requiring less on-site work, and having a shorter construction period.

[0003] With the growth of market demand and the development of technology, modular buildings are evolving towards higher, larger, and more complex structures, which places increasingly stringent requirements on structural performance. Existing technologies mainly include three systems: "steel stacked box girder structure," "steel stacked box girder + lateral force resisting structure," and "steel structure embedded module." However, when applied to high-rise buildings, all of these systems have revealed significant technical bottlenecks.

[0004] (1) The steel stacked box structure is made up of stacked modular units. The modules have small cross-sectional dimensions and are connected only by connectors, resulting in weak overall lateral stiffness. It cannot meet the displacement limit requirements of multi-story and high-rise buildings and is difficult to apply to high-rise buildings.

[0005] (2) The steel stacked box girder + lateral force resisting structure is composed of stacked boxes and other lateral force resisting components (such as shear walls). It mainly relies on other lateral force resisting components to bear horizontal loads and stiffness requirements. However, due to the limitations of the building plan, the arrangement of other lateral force resisting components is restricted, and the space advantage cannot be fully utilized. The requirements can only be met by increasing the cross-section of the components, resulting in poor compatibility with the building. In addition, the floor slabs between the modular boxes are separated, and the force flow is transmitted only by the horizontal connecting plates, resulting in insufficient overall structural coordination.

[0006] (3) The steel structure embedded module system integrates modular units into the main structure. The modules only bear their own weight and do not participate in the load sharing of the main structure, forming a dual structural system. This not only causes the modular components to protrude into the interior space, resulting in a loss of usable space, but also increases the amount of materials used.

[0007] The aforementioned problems make existing modular steel structures unsuitable for high-rise buildings, limiting their widespread application. To address these shortcomings, a new structural system is needed that can improve lateral stiffness, enhance overall structural integrity, and enable efficient construction, thereby overcoming existing technological bottlenecks. Utility Model Content

[0008] The main purpose of this utility model is to provide a structural system containing combined vertical components and other lateral force resisting components in order to solve the above-mentioned technical problems.

[0009] This utility model provides a structural system including a steel structure module with combined vertical components and other lateral force resisting components, comprising:

[0010] Multiple steel structure modular boxes are stacked vertically and spliced ​​horizontally to form multiple floors; each steel structure modular box includes multiple structural columns, a top beam set at the top of the multiple structural columns, and an integrated top plate set above the top beam; the integrated top plate is configured to also serve as the bottom formwork of the cast-in-place concrete floor slab when the cast-in-place concrete floor slab is poured.

[0011] Multiple combined vertical components, each of which is disposed between the structural columns of the horizontally adjacent steel structure modular boxes and extends through the multiple floors; the combined vertical components are combined structural columns or combined structural walls.

[0012] A cast-in-place concrete floor slab, wherein the cast-in-place concrete floor slab is integrally cast onto the same floor as the steel structure modular box and the combined vertical components, the cast-in-place concrete floor slab including reinforcing bars and concrete laid above the top beam and the integrated top slab; and

[0013] Other lateral force resisting components are connected to the plurality of steel structure modular boxes and the plurality of combined vertical components through the cast-in-place concrete floor slab and connecting keys to jointly form a steel structure stacked box composite frame-lateral force resisting structure system; the other lateral force resisting components are one or more of the following: reinforced concrete frame-shear wall, tube, shear wall, steel structure frame-bracing, and steel frame-ductile wall panel.

[0014] The combined vertical component includes a casting cavity formed by the structural columns of the horizontally adjacent steel structure module boxes, a reinforcing cage disposed in the casting cavity, and concrete poured into the casting cavity and covering the reinforcing cage.

[0015] A horizontal gap is left between the edge of the integrated roof slab and the outer edge of the top beam supporting it, so as to form a casting groove extending along the top beam; the cast-in-place concrete floor slab fills the casting groove and covers the integrated roof slab.

[0016] The top beam is fixedly equipped with multiple shear connectors at the pouring groove, and the multiple shear connectors are anchored in the cast-in-place concrete floor slab.

[0017] The steel structure module box also includes a prefabricated integrated floor set at the bottom of the multiple structural columns. The prefabricated integrated floor is a concrete base integrated floor or a steel structure base integrated floor, and is configured to sit on the lower cast-in-place concrete floor slab. A supporting leveling layer or a lattice support is provided between the prefabricated integrated floor and the lower cast-in-place concrete floor slab.

[0018] The multiple structural columns, the top beam, the integrated roof slab, and the prefabricated integrated floor form a steel structure box, and the steel structure box contains a prefabricated integrated enclosure system, electromechanical system, and interior decoration system.

[0019] The structural columns of each steel structure module box are initially connected to the structural columns of the steel structure module boxes on adjacent floors through rigid nodes, semi-rigid nodes, or hinged nodes; the horizontally adjacent steel structure module boxes are initially connected through connecting plates.

[0020] The beneficial technical effects of this utility model are as follows: By combining prefabricated steel structure modular boxes with cast-in-place composite vertical components, cast-in-place concrete floor slabs, and other lateral force resisting components, this utility model forms a steel structure stacked box composite frame-lateral force resisting structure system, effectively improving the overall lateral stiffness and overall coordination of the structure. Specifically, the composite vertical components and other lateral force resisting components significantly improve lateral force resisting performance, meeting the lateral displacement limit requirements for high-rise buildings; the integral casting design of the cast-in-place concrete floor slab ensures continuous connection and coordinated force distribution between the modular boxes and vertical components, solving the problem of poor force transmission caused by the separation of floor slabs in traditional systems; simultaneously, the modular boxes participate in the main structural force distribution, and the integrated top slab also serves as the bottom formwork, optimizing material utilization and construction efficiency, avoiding space waste and material redundancy in dual structures, thus breaking through the technical bottleneck of existing steel structure modular buildings in high-rise applications and achieving a highly efficient and stable building structure. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the steel structure stacked box composite frame-lateral force resisting structure in the structural system provided by the embodiment of this utility model;

[0023] Figure 2a A cross-sectional schematic diagram of the steel structure stacked box composite frame-lateral force resisting structure in the structural system provided in this embodiment of the utility model;

[0024] Figure 2b Another cross-sectional schematic diagram of the steel structure stacked box composite frame-lateral force resisting structure in the structural system provided in this embodiment of the utility model;

[0025] Figure 2c Another cross-sectional schematic diagram of the steel structure stacked box composite frame-lateral force resisting structure in the structural system provided in the embodiment of this utility model;

[0026] Figure 3 This is a three-dimensional schematic diagram of the splicing of two steel structure module boxes on the left and right sides in the structural system provided in the embodiment of this utility model;

[0027] Figure 4 This is a three-dimensional schematic diagram of a single steel structure module box in the structural system provided in the embodiment of this utility model;

[0028] Figure 5 This is a schematic cross-sectional view of the splicing of two upper and lower steel structure module boxes in the structural system provided in this embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram showing the splicing between the upper and lower, and left and right steel structure module boxes in the structural system provided in this embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the steel structure modular box integration system in the structural system provided by this utility model embodiment;

[0031] Figure 8 A schematic diagram of the construction method provided in this embodiment of the utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram: 10-steel structure module box, 11-structural column, 14-top beam, 15-shear connector, 16-integrated roof slab, 17-precast integrated floor, 18-supporting leveling layer, 20-formwork, 30-combined vertical components, 31-casting cavity, 40-cast-in-place concrete floor slab, 41-connecting key, 50-other lateral force resisting components, 70-casting slot, 81-enclosure system, 82-mechanical and electrical system, 83-interior system. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0036] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this 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.

[0037] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0038] Please also refer to Figures 1-7 This utility model provides a structural system comprising a steel structure module with combined vertical members and other lateral force resisting components, aiming to solve the problems of weak lateral stiffness, poor overall integrity, and unsuitability for high-rise buildings in traditional modular steel structures. This embodiment combines a prefabricated steel structure module box 10 with cast-in-place combined vertical members 30, cast-in-place concrete floor slabs 40, and other lateral force resisting components to form a structural system comprising a steel structure module with combined vertical members and other lateral force resisting components, thereby improving the overall performance, load-bearing capacity, overall stability, and applicable height of the building structure. The structural system includes multiple steel structure modular boxes 10, which are stacked vertically and spliced ​​horizontally to form multiple floors. Each steel structure modular box 10 includes multiple structural columns 11, a top beam 14 at the top of the multiple structural columns 11, and an integrated top plate 16 above the top beam 14. The integrated top plate 16 is configured to serve as the bottom formwork of the cast-in-place concrete floor slab 40 during the pouring of the concrete floor slab 40. Multiple combined vertical members 30 are arranged between the structural columns 11 of the horizontally adjacent steel structure modular boxes 10 and penetrate through the multiple floors. The combined vertical members 30 are combined structural columns or combined structural walls. A cast-in-place concrete floor slab 40 is integrally cast onto the same floor as the steel structure module boxes 10 and the combined vertical members 30. The cast-in-place concrete floor slab 40 includes reinforcing bars and concrete laid above the top beam 14 and the integrated top slab 16; and other lateral force resisting members 50. The other lateral force resisting members 50 are connected to the multiple steel structure module boxes 10 and the multiple combined vertical members 30 through the cast-in-place concrete floor slab 40 and connecting keys to jointly form a steel structure stacked box composite frame-lateral force resisting structure system. The other lateral force resisting members 50 are one or more of the following: reinforced concrete frame-shear wall, tube, shear wall, steel structure frame-bracing, and steel frame-ductile wall panel.

[0039] In this embodiment, the structural system includes multiple steel structure module boxes 10, multiple combined vertical components 30, cast-in-place concrete floor slabs 40, and other lateral force resisting components 50.

[0040] Specifically, the steel structure modular box 10 is the basic unit constituting the structural system. These modular boxes are prefabricated in a highly integrated manner in the factory. At the construction site, multiple steel structure modular boxes 10 are stacked vertically layer by layer according to the architectural design drawings, and then spliced ​​horizontally on the same floor to quickly form multiple floors of the building.

[0041] Each steel structure module box 10 mainly includes multiple structural columns 11, a top beam 14 set at the top of the multiple structural columns 11, and an integrated top plate 16 set above the top beam 14. The structural columns 11 are set at the four corners of the module box to bear and transmit vertical loads. The top beam 14 is welded or bolted to the top of the structural columns 11, forming a stable top frame structure together with the structural columns 11. The integrated top plate 16 is laid and fixed on the frame formed by the top beam 14. In this embodiment, a key function of the integrated top plate 16 is that it is configured to serve as the bottom formwork for the cast-in-place concrete floor slab 40 during subsequent on-site construction. This design eliminates the need for additional on-site formwork erection and dismantling, simplifies the construction process, and improves construction efficiency.

[0042] The combined vertical member 30 is the load-bearing and connecting member in this embodiment. In the floor plan of a building, when two or more steel structure modular boxes 10 are spliced ​​adjacently in the horizontal direction, a cavity area is naturally formed between their adjacent structural columns 11. Each combined vertical member 30 is set in this cavity area and extends vertically along the building, penetrating multiple floors. This arrangement allows the combined vertical member 30 not only to bear and transmit the vertical load from the superstructure, but also to act as a vertical connector between adjacent modular boxes 10, enhancing the overall integrity of the structure. For example, when two steel structure modular boxes 10 are spliced ​​horizontally, the area enclosed by four structural columns 11 at their corresponding corners can be used to set up a combined structural column or a combined structural wall.

[0043] The cast-in-place concrete floor slab 40 is a reinforced concrete floor slab integrally cast on-site after the steel structure modular boxes 10 and combined vertical components 30 of each floor are installed in place. Before pouring, a steel mesh for the floor slab is uniformly laid above the top beams 14 and integrated top slabs 16 of all steel structure modular boxes 10 on the same floor, and near the top openings of the combined vertical components 30 that penetrate the floor. Then, the integral concrete pouring operation is carried out. After pouring, the concrete will cover the entire floor plane and other lateral force resisting components 50, firmly connecting all the steel structure modular boxes 10, combined vertical components 30, and other lateral force resisting components 50 of the floor into a whole. In this way, horizontal loads can be effectively transferred, ensuring the coordinated work between the various components of the structural system.

[0044] The other lateral force resisting members 50 are additional members designed to meet the higher lateral force resisting requirements of high-rise buildings. For example... Figure 1 As shown, these other lateral force resisting members 50 can be arranged in the core tube area, perimeter, or other suitable locations of the building, depending on the needs of the building's function and structural layout. In this embodiment, the other lateral force resisting members 50 can be one or more of the following: reinforced concrete frame-shear wall, core tube, shear wall, steel structure frame-bracing, and steel frame-ductile wall panel. For example, in high-rise buildings, reinforced concrete shear walls or core tubes can be used as the main lateral force resisting members. These other lateral force resisting members 50 are tightly connected to multiple steel structure module boxes 10 and multiple combined vertical members 30 through the cast-in-place concrete floor slab 40 and the reserved connecting keys 41.

[0045] In summary, the steel structure modular box 10, the combined vertical members 30, the cast-in-place concrete floor slab 40, and other lateral force resisting members 50 together form a "steel structure stacked box composite frame-lateral force resisting structure system." In this system, the steel structure modular box 10 and the combined vertical members 30 constitute the main vertical load-bearing and lateral force resisting frame, while the cast-in-place concrete floor slab 40 connects all vertical members into a whole and works in conjunction with other lateral force resisting members 50 to resist horizontal forces, thereby ensuring the safety and stability of the entire building structure under vertical and horizontal loads. This system effectively overcomes the shortcomings of traditional modular buildings, such as weak connections and poor overall integrity, and provides a reliable solution for the realization of high-rise and super high-rise modular buildings.

[0046] In one embodiment, the combined vertical member 30 includes a casting cavity 31 enclosed by the structural columns 11 of the horizontally adjacent steel structure module boxes 10, a reinforcing cage disposed in the casting cavity 31, and concrete poured into the casting cavity 31 and covering the reinforcing cage.

[0047] In this embodiment, the combined vertical member 30 is a steel-concrete composite structure fabricated on-site. It comprises a casting cavity 31, a reinforcing cage disposed within the casting cavity 31, and concrete poured into the cavity.

[0048] The casting cavity 31 is not enclosed by traditional temporary formwork, but is naturally formed by the structural columns 11 of horizontally adjacent steel structure modular boxes 10. Specifically, when two steel structure modular boxes 10 are placed side by side in the horizontal direction, a space is naturally formed between the structural columns 11 at their adjacent corners. This space is used as the casting cavity 31. Before pouring concrete, a pre-fabricated reinforcing cage is placed at this location. After the casting cavity 31 encloses the reinforcing cage, concrete is filled into the casting cavity 31 until it completely covers the internal reinforcing cage. After the concrete solidifies, the adjacent structural columns 11, the internal reinforcing cage, and the filled concrete together form an integral composite component, namely the composite vertical component 30.

[0049] This composite component makes full use of the tensile strength of steel and the compressive strength of concrete, possessing extremely high load-bearing capacity and stiffness. As a vertical component connecting and supporting the modular boxes on the upper and lower floors, it becomes an important part of the overall lateral force resisting system.

[0050] In one embodiment, a steel formwork component is provided at one corner of the steel structure module box 10. The steel formwork component includes two structural columns 11 and a formwork 20 disposed within the two structural columns 11. The steel formwork components of the horizontally adjacent steel structure module boxes 10 together form the casting cavity 31.

[0051] In this embodiment, the steel formwork component is a part prefabricated on the steel structure module box 10 in the factory. It specifically includes a formwork 20 and two structural columns 11 respectively disposed on opposite sides of the formwork 20. From the top view of the steel structure module box 10, the steel formwork component is located at a corner of the steel structure module box 10 and presents a "C" or "U" shaped open section, wherein the formwork 20 is the web of the "C" shape, and the two structural columns 11 are the two flanges of the "C" shape.

[0052] During assembly on the construction site, after two horizontally adjacent steel structure modular boxes 10 are hoisted and aligned, the open end of the steel formwork component of one steel structure modular box 10 will align with the open end of the steel formwork component of the other adjacent steel structure modular box 10. In this way, the two "C"-shaped steel formwork components are enclosed together, forming a closed casting cavity 31 with a rectangular or square cross-section.

[0053] In one embodiment, a horizontal gap is left between the edge of the integrated roof slab 16 and the outer edge of the top beam 14 supporting it to form a casting groove 70 extending along the top beam 14; the cast-in-place concrete floor slab 40 fills the casting groove 70 and covers the integrated roof slab 16.

[0054] In this embodiment, during installation, the integrated top plate 16 is not directly abutted against the outer edge of the supporting top beam 14. Instead, a certain horizontal gap is pre-established between the edge of the integrated top plate 16 and the outer edge of the top beam 14. This horizontal gap extends along the length of the top beam 14, thereby forming a rectangular casting groove 70 between the integrated top plate 16 and the top beam 14. The upper part of this casting groove 70 is open, its bottom is part of the top beam 14, and one side is the lateral edge of the integrated top plate 16.

[0055] During floor slab construction, as concrete is poured on-site to form the cast-in-place concrete floor slab 40, the flowing concrete not only covers the entire integrated ceiling slab 16 of the floor but also naturally flows into and fills the aforementioned pouring slot 70. After the concrete solidifies, the portion of concrete filling the pouring slot 70 forms a concrete rib extending along the top beam 14, which tightly wraps and connects the top structure of the top beam 14 to the integrated ceiling slab 16.

[0056] By setting such a casting groove 70 and filling it with cast-in-place concrete floor slab 40, the cast-in-place concrete floor slab 40 is embedded with the top beam 14 of the steel structure module box 10 and the integrated top plate 16, which enhances the connection stiffness and integrity between them and creates favorable conditions for forming a composite beam structure.

[0057] In one embodiment, the top beam 14 is fixedly provided with a plurality of shear connectors 15 at the pouring groove 70, and the plurality of shear connectors 15 are anchored within the cast-in-place concrete floor slab 40.

[0058] In this embodiment, in order to form a composite beam structure between the top beam 14 of the steel structure module box 10 and the cast-in-place concrete floor slab 40, multiple shear connectors 15 are fixedly installed in the casting groove 70 area of ​​the top beam 14 when the steel structure module box 10 is prefabricated in the factory.

[0059] The shear connector 15 can be in the form of studs. These studs are welded to the upper surface of the top beam 14 at a certain spacing and arrangement (e.g., single or double rows). The shear connector 15 can also be in other forms, such as slotted angle steel, rebar hooks, etc., as long as it can effectively resist and transmit the horizontal shear force between the steel beam and the concrete floor slab.

[0060] During on-site construction, when the cast-in-place concrete floor slab 40 is poured, these pre-installed shear connectors 15 will be completely embedded and anchored in the concrete. After the concrete hardens, these shear connectors 15 act like "pins," firmly "nailing" the steel top beam 14 and the concrete floor slab together, effectively restraining the relative slippage between the steel beam and the concrete slab when the floor slab is bent.

[0061] In this way, the steel top beam 14, which was originally mainly subjected to independent bending, and the cast-in-place concrete floor slab 40 are transformed into a whole composite beam that works together. Compared with non-composite steel beams, this composite beam structure has higher load-bearing capacity and greater stiffness.

[0062] In one embodiment, the steel structure module box 10 further includes a prefabricated integrated ground 17 disposed at the bottom of the multiple structural columns 11. The prefabricated integrated ground 17 is a concrete base integrated or a steel structure base integrated, and is configured to sit on the lower cast-in-place concrete floor slab 40. A supporting leveling layer 18 or a lattice support is provided between the prefabricated integrated ground 17 and the lower cast-in-place concrete floor slab 40.

[0063] In this embodiment, the prefabricated integrated floor 17 is a structural and functional layer that is fixedly connected to the bottom of the structural columns 11 of the steel structure module box 10 as an integral unit during the factory prefabrication stage. For example, when using a concrete base layer for integration, the prefabricated integrated floor 17 may include a prefabricated concrete slab as the base layer, on which the necessary floor functional layers are integrated; when using a steel structure base layer for integration, it may include a steel plate or steel frame as the base layer, and similarly integrate the floor functional layers. This prefabrication method ensures the quality of the floor layer.

[0064] During on-site installation of the building, once the cast-in-place concrete floor slab 40 of a certain floor (e.g., the Nth floor) is poured and reaches its predetermined strength, the steel structure modular box 10 for the next floor (the N+1th floor) is hoisted in. At this time, the prefabricated integrated floor 17 attached to the steel structure modular box 10 sits directly on the cast-in-place concrete floor slab 40 of the Nth floor below, forming a layered stacking relationship. This configuration allows the prefabricated integrated floor 17 to not only serve as the bottom enclosure structure of the modular box, but also to directly utilize the lower cast-in-place concrete floor slab 40 as its supporting foundation, avoiding the need for an additional independent floor slab.

[0065] To ensure uniform contact between the precast integrated floor 17 and the underlying cast-in-place concrete slab 40, and to avoid localized stress concentration caused by minor unevenness on the surface of the underlying slab, this embodiment includes a supporting leveling layer 18 or a lattice support between them. Specifically, the supporting leveling layer 18 can be a thin layer of mortar or similar material applied on-site to fill gaps and provide leveling; or a lattice support, a grid-like support structure, can be used to provide point or linear support while allowing for a certain degree of adjustment. This arrangement not only reduces the overall thickness of the precast integrated floor 17, avoiding the space waste associated with traditional double-slab stacking, but also ensures the flatness and stability of the bottom of the modular box, improving the quality of the building's interior space and user comfort.

[0066] In one embodiment, the multiple structural columns 11, the top beam 14, the integrated roof slab 16, and the prefabricated integrated floor 17 constitute a steel structure box, and the steel structure box is prefabricated and integrated with an enclosure system 81, an electromechanical system 82, and an interior decoration system 83.

[0067] In this embodiment, the multiple structural columns 11 serve as the vertical support frame of the box body, located at the four corners of the box body, and are fixedly connected to the top beam 14 at the top by welding or bolting to form the top frame of the box body. Simultaneously, the integrated top plate 16 is laid and fixed on this top frame, serving as the top enclosure structure of the box body; the prefabricated integrated floor 17 is fixed to the bottom of the structural columns 11, serving as the bottom enclosure structure of the box body. Through the assembly of these components, a complete steel structure box body is formed. This box body has sufficient rigidity and strength, can be prefabricated in the factory, and remains stable during transportation and on-site hoisting.

[0068] During the factory prefabrication stage, the steel structure box body integrates an enclosure system 81, an electromechanical system 82, and an interior decoration system 83 to achieve a high degree of integration and modular production. Specifically, the enclosure system 81 includes components such as wall panels, doors and windows, and exterior finishes (not shown in the attached drawings). These components are fixed inside the frame formed by the structural columns 11 and the top beams 14, forming an enclosed perimeter of the box body. The electromechanical system 82 includes electrical wiring, plumbing pipes, ventilation equipment, etc. (not shown in the attached drawings). These systems are pre-installed and fixed in appropriate locations inside the box body and are integrated in coordination with the enclosure system 81. The interior decoration system 83 includes interior decoration materials, partitions, ceilings, and floor finishes (not shown in the attached drawings). These components are further installed and fixed on the basis of the prefabricated integrated floor 17. This factory integration method not only ensures the quality and compatibility of each system but also greatly reduces on-site work and improves construction efficiency.

[0069] In one embodiment, a connector is also included that is bonded to the concrete, the connector being disposed on the structural column 11, the top beam 14, and / or the formwork 20.

[0070] In this embodiment, the connector is a structural component that is fixedly installed on the structural column 11, top beam 14 and / or formwork 20 when the steel structure module box 10 is prefabricated in the factory. Its function is to tightly bond with the concrete when the concrete is poured on site, forming a mechanical locking or shear resistance, so that the steel structure component and the concrete are subjected to the force as a whole, preventing relative slippage or separation.

[0071] For example, multiple connectors, such as through holes or fixed studs, can be installed on the sidewall of the structural column 11 facing the casting cavity 31. These through holes allow concrete to flow through and fill during pouring, forming concrete dowels; the studs extend into the concrete to provide anchorage. Connectors can be installed on the upper surface of the top beam 14 to connect with the cast-in-place concrete slab 40. On the formwork 20, connectors can be steel bar hooks or similar elements fixed inside the formwork 20 for connection with the concrete within the casting cavity 31. Through these connectors, the structural columns 11, top beam 14, and formwork 20 of the steel structure modular box 10 can work more effectively with the concrete, improving the overall strength and stability of the combined vertical members 30 and the cast-in-place concrete slab 40. This design fully utilizes the tensile strength of steel and the compressive strength of concrete, ensuring the load-bearing capacity and lateral stiffness of the structural system.

[0072] In one embodiment, the structural columns 11 of each steel structure module box 10 are initially connected to the structural columns 11 of the steel structure module boxes 10 on adjacent floors through rigid nodes, semi-rigid nodes or hinged nodes; the horizontally adjacent steel structure module boxes 10 are initially connected through connecting plates.

[0073] In this embodiment, regarding vertical connections, each structural column 11 of the steel structure module box 10 is connected to the structural columns 11 of the steel structure module boxes 10 on the floors above or below it via nodes. Depending on the structural design requirements, these vertical nodes can be designed as rigid nodes, semi-rigid nodes, or hinged nodes. For example, rigid nodes can be connected by aligning the upper structural column 11 and the corresponding lower structural column 11 with rigid bolts to transmit axial force, shear force, and bending moment; hinged nodes can use pin connections, primarily transmitting axial force and shear force, but transmitting little or no bending moment. This initial connection between the upper and lower modules provides a guarantee for temporary fixation after the modules are hoisted into place.

[0074] For horizontal connections, adjacent steel structure modular boxes 10 on the same floor are initially connected by connecting plates. These connecting plates, made of steel, are used to secure the frames of two adjacent modular boxes 10 together (e.g., to adjacent top beams) via bolts or on-site welding. This horizontal connection ensures that the modular boxes on the same floor form a stable planar whole before the cast-in-place concrete floor slab 40 is poured, preventing relative displacement of the modular boxes during construction.

[0075] It is important to emphasize that the aforementioned vertical node connections and horizontal connecting plate connections are all "preliminary connections," whose main function is positioning and temporary fixation during construction. The final integrity and strong lateral resistance of the entire building structure are achieved on the basis of these preliminary connections, through the subsequent pouring of cast-in-place concrete floor slabs 40 and combined vertical components 30, connecting all the independent steel structure module boxes 10 and combined vertical components 30, as well as other lateral force resisting components 50, into an integrated lateral force resisting system.

[0076] like Figure 8 As shown, corresponding to the above-mentioned structural system of steel structure module containing combined vertical members and other lateral force resisting members, this utility model embodiment also provides a construction method for the structural system, the method including steps S1-S4:

[0077] S1. Pre-tie the steel reinforcement cage at the position where the combined vertical member 30 is to be formed, and simultaneously install the formwork for other lateral force resisting members 50;

[0078] Before commencing construction on this floor, pre-tied or prefabricated steel cages are first tied or hoisted at the locations where the combined vertical members 30 are required by the design. For other lateral force resisting members 50, such as reinforced concrete shear walls, their formwork needs to be installed simultaneously and reinforced to prepare for subsequent concrete pouring.

[0079] S2. Hoist and assemble multiple steel structure modular boxes 10 on this floor, so that the structural columns 11 of two horizontally adjacent steel structure modular boxes 10 together surround the outside of the steel cage of the combined vertical component 30 to form a cavity for casting the combined vertical component 30.

[0080] After the reinforcement cage is arranged, the hoisting of multiple steel structure modular boxes 10 for this floor begins. Each steel structure modular box 10 is hoisted to the designated position, and the structural columns 11 of two horizontally adjacent steel structure modular boxes 10 are aligned and enclosed outside the reinforcement cage of the pre-set combined vertical member 30. In this way, a cavity for casting the combined vertical member 30 is naturally formed between the structural columns 11 of adjacent steel structure modular boxes 10.

[0081] S3. After laying the reinforcing bars of the cast-in-place concrete floor slab 40 above the top beams 14 and integrated top slab 16 of the plurality of steel structure modular boxes 10, the concrete of this floor is poured in a monolithic manner. When the concrete reaches the design strength, the steel structure modular boxes 10, the combined vertical members 30 and the cast-in-place concrete floor slab 40 together form a steel structure stacked box combined frame structure system; the other lateral force resisting members 50 and the steel structure stacked box combined frame structure system together form a steel structure stacked box combined frame-lateral force resisting structure system.

[0082] After all the steel structure modular boxes 10 on this floor are assembled and initially fixed, the floor slab reinforcement is tied. Construction workers lay and tie the reinforcing mesh of the cast-in-place concrete floor slab 40 above the integrated top slab 16 of the steel structure modular boxes 10. Simultaneously, the floor slab reinforcement is reliably connected to the pre-reserved reinforcement of the combined vertical members 30 and other lateral force resisting members 50.

[0083] After the steel reinforcement work passes inspection, a one-time, large-scale concrete pouring will begin on this floor. The poured concrete will simultaneously accomplish three tasks: cover the top of the steel structure module box 10 covering the entire floor, forming a cast-in-place concrete floor slab 40; fill the cavity enclosed by the structural columns 11, combining with the internal steel reinforcement cage to form a combined vertical member 30; and fill into the pre-set template to form other lateral force resisting members 50.

[0084] After the concrete has cured and reached its design strength, the steel structure module box 10, the combined vertical members 30, the cast-in-place concrete floor slab 40, and other lateral force resisting members 50 of this floor are firmly connected into a whole, forming an integrated lateral force resisting system. The cast-in-place concrete floor slab 40 effectively transfers the horizontal load to the combined vertical members 30 and other lateral force resisting members 50, ensuring the integrity of the structural system.

[0085] When concrete is poured above the integrated top plate 16 of all steel structure module boxes 10 on this floor, the integrated top plate 16 acts as the bottom formwork of the cast-in-place concrete floor slab 40 in this process, eliminating the need for the formwork erection and dismantling process in traditional construction.

[0086] S4. Using the already formed cast-in-place concrete floor slab 40 as a working platform, after constructing the grout layer on the cast-in-place concrete floor slab 40, repeat the above steps to construct the next floor until the building is completed.

[0087] Once the cast-in-place concrete slab of this floor is completed (40mm thick), it becomes a solid and level working platform. The construction team can then use this as a foundation to apply the grout layer before proceeding to the next floor. This process continues upwards, layer by layer, until the entire main structure of the building is completed. This method enables streamlined operations and improves construction efficiency.

[0088] This construction method, through the process of pre-installing steel cages, hoisting modules to form the casting cavity 31, and integrated casting, achieves a tight connection between the steel structure module box 10 and the cast-in-place combined vertical components 30 and other lateral force resisting components 50, forming an overall lateral force resisting system. This greatly improves the lateral stiffness and load-bearing capacity of the building structure, solving the problems of insufficient stiffness and poor stress coordination in traditional modular buildings used in high-rise applications.

[0089] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A structural system comprising a steel structure module with combined vertical members and other lateral force resisting members, characterized in that, include: Multiple steel structure modular boxes are stacked vertically and spliced ​​horizontally to form multiple floors; Each of the steel structure module boxes includes multiple structural columns, a top beam disposed at the top of the multiple structural columns, and an integrated top plate disposed above the top beam; the integrated top plate is configured to also serve as the bottom formwork of the cast-in-place concrete floor slab when it is being poured. Multiple combined vertical components, each of which is disposed between the structural columns of the horizontally adjacent steel structure modular boxes and extends through the multiple floors; the combined vertical components are combined structural columns or combined structural walls. A cast-in-place concrete floor slab, wherein the cast-in-place concrete floor slab is integrally cast onto the same floor as the steel structure modular box and the combined vertical components, the cast-in-place concrete floor slab including reinforcing bars and concrete laid above the top beam and the integrated top slab; and Other lateral force resisting components are connected to the plurality of steel structure modular boxes and the plurality of combined vertical components through the cast-in-place concrete floor slab and connecting keys to jointly form a steel structure stacked box composite frame-lateral force resisting structure system; the other lateral force resisting components are one or more of the following: reinforced concrete frame-shear wall, tube, shear wall, steel structure frame-bracing, and steel frame-ductile wall panel.

2. The structural system according to claim 1, characterized in that, The combined vertical component includes a casting cavity enclosed by the structural columns of the horizontally adjacent steel structure module boxes, a reinforcing cage disposed in the casting cavity, and concrete poured into the casting cavity and covering the reinforcing cage.

3. The structural system according to claim 1, characterized in that, A horizontal gap is left between the edge of the integrated roof slab and the outer edge of the top beam supporting it to form a casting groove extending along the top beam; the cast-in-place concrete floor slab fills the casting groove and covers the integrated roof slab.

4. The structural system according to claim 3, characterized in that, The top beam is fixedly equipped with multiple shear connectors at the pouring groove, and the multiple shear connectors are anchored in the cast-in-place concrete floor slab.

5. The structural system according to claim 1, characterized in that, The steel structure module box also includes a prefabricated integrated floor set at the bottom of the multiple structural columns. The prefabricated integrated floor is a concrete base integrated floor or a steel structure base integrated floor, and is configured to sit on the lower cast-in-place concrete floor slab. A supporting leveling layer or a lattice support is provided between the prefabricated integrated floor and the lower cast-in-place concrete floor slab.

6. The structural system according to claim 5, characterized in that, The multiple structural columns, the top beam, the integrated roof slab, and the prefabricated integrated floor constitute a steel structure box, and the enclosure system, electromechanical system, and interior decoration system are prefabricated and integrated inside the steel structure box.

7. The structural system according to claim 1, characterized in that, The structural columns of each steel structure module box are initially connected to the structural columns of the steel structure module boxes on adjacent floors through rigid nodes, semi-rigid nodes, or hinged nodes; the horizontally adjacent steel structure module boxes are initially connected through connecting plates.

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