An assembled structure combining a prefabricated steel frame and concrete composite wall columns

Abstract

The present invention discloses an assembled structure composed of a prefabricated steel frame and concrete composite wall columns, which belongs to the field of modular building technology. It is assembled from modular structures, including columns, beams, end walls and prefabricated components; the columns are arranged at intervals; the beams are connected to the columns; the end walls are respectively connected to the columns and the beams; the prefabricated components are respectively connected to the beams and the end walls; the modular structure includes branched columns, branched beams, end wall units and prefabricated units; the branched columns are arranged vertically corresponding to the columns; the branched beams correspond to the beams; the end wall units include side panels and protrusions; the prefabricated units are arranged on at least one side of the modular structure, and are respectively connected to the end wall units and the branched beams. The load-bearing walls, columns and beams of the present invention are all spliced ​​through modular structures and combined with cast-in-situ concrete to achieve a stable connection between the modular structures, improve the connection strength and structural strength, achieve the combination of concrete structure and steel structure, and extend the service life of the building.

Description

Technical Field

[0001] The present invention belongs to the technical field of modular buildings, and in particular relates to an assembled structure composed of a prefabricated steel frame and concrete composite wall columns. Background Art

[0002] Modular buildings modularize the building space during the design phase and carry out building integration and integrated design, which not only ensures the scalability of functional space, but also maximizes the repetition rate of components; during the production and manufacturing phase, modular units can be mass-produced on standardized factory assembly lines, and the uniformity of building quality is better guaranteed; during the construction and installation phase, the overall modular unit assembly and installation method is adopted, which has higher installation accuracy and faster assembly speed, and is conducive to the realization of digital information collaboration, tracking and management in the entire process of design, production and construction, while achieving standardized production and rapid integrated assembly, it ensures the high quality of the project and the green and low-carbon development of engineering construction.

[0003] Existing modular buildings include steel structure modules and concrete modules. Steel structure modules use a large amount of steel, have difficulty in node connection, and have a relatively short building service life; concrete modules are heavy, difficult to install and transport, have thick walls, and have a low house utilization rate. Summary of the Invention

[0004] The purpose of the present invention is to provide an assembled structure composed of a prefabricated steel frame and concrete composite wall columns to solve the problems in the above-mentioned background technology that the existing steel structure modules and concrete modules have their own shortcomings, the strength of modular buildings is lower than that of conventional structures, and the application scenarios are limited.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An assembled structure composed of a prefabricated steel frame and concrete composite wall columns, assembled from modular structures, includes columns, beams, end walls, and prefabricated components; the columns are spaced apart and located at the intersection of the walls; the beams are connected to the columns; the end walls are respectively connected to the columns and beams; and the prefabricated components are respectively connected to the beams and end walls.

[0007] The modular structure includes branch columns, branch beams, end wall units and prefabricated units; the branch columns are vertically arranged corresponding to the columns, and the branch columns of the laterally adjacent modular structures are spliced ​​to form column brackets, and concrete is poured in the column brackets; the branch beams correspond to the cross beams, and their two ends are respectively fixed to the two branch columns, and the branch beams of the laterally adjacent modular structures are spliced ​​to form beam brackets, and concrete is poured in the beam brackets; the end wall units include side panels and protrusions; the side panels are arranged corresponding to the end walls and are respectively connected to the branch columns and the branch beams; the protrusions are arranged on the surface of the side panels facing the outside of the modular structure, and concrete is poured between the end wall units of the laterally adjacent modular structures; the prefabricated units are arranged on at least one side of the modular structure, and are respectively connected to the end wall units and the branch beams, and the prefabricated units of the laterally adjacent modular structures together constitute prefabricated components.

[0008] Furthermore, the branch column is an angle steel structure, which is arranged outside the module structure with its inner corner facing the outside of the module structure; the surface of the branch column is welded with overlapping steel bars and reinforcing plates.

[0009] Furthermore, the branch column is an angle steel structure, which is arranged on the outside of the module structure, and its inner corner faces the inside of the module structure; a steel frame is arranged in the column bracket; connecting ribs are also arranged in the column; the connecting ribs are arranged horizontally, and their ends extend to the outside of the column.

[0010] Furthermore, the branch column is an angle steel structure, which is arranged on the inner side of the module structure, and its inner corner is in contact with the inner corner of the module structure; the end wall is a prefabricated double-sided composite concrete shear wall, which is hollow inside, and cast-in-place concrete is arranged in the hollow part, and the end walls between adjacent module structures are staggered.

[0011] Furthermore, vertical reinforcement is arranged inside the column, and the vertical reinforcement is connected to the vertical reinforcement of the longitudinally adjacent column through additional reinforcement; transverse reinforcement and longitudinal reinforcement are also arranged in the end wall; the transverse reinforcement is connected to the adjacent column; the longitudinal reinforcement is connected to the longitudinal reinforcement of the longitudinally adjacent end wall.

[0012] Furthermore, the prefabricated components are combined lightweight walls; the prefabricated units are divided into sub-units and mother units; and the transversely adjacent module structures are respectively installed with sub-units and mother units.

[0013] Furthermore, the combined lightweight wall is a light steel keel wall, the sub-unit is a decorative panel; the mother unit includes a decorative panel and a keel frame, and the sub-unit and the mother unit are assembled to form a light steel keel wall.

[0014] Furthermore, the combined lightweight wall is a light steel keel wall, the mother unit is a light steel keel wall; the sub-unit is a reserved installation opening, and the mother unit is embedded in the reserved installation opening of the sub-unit.

[0015] Furthermore, the prefabricated units include prefabricated side panels and prefabricated protrusions, and concrete is poured between the prefabricated units of the laterally adjacent module structures.

[0016] Furthermore, it also includes a top plate and a bottom plate; the module structure includes a top plate unit and a bottom plate unit; the top plate unit is a steel truss floor deck; the bottom plate unit is a steel truss floor deck or a building ground layer, and ground keels are arranged at intervals inside.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns. The load-bearing walls, columns and beams are all spliced ​​through modular structures and combined with cast-in-place concrete to achieve a stable connection between the modular structures, improve the connection strength and structural strength, realize the combination of concrete structure and steel structure, and extend the service life of the building.

[0019] 2. The present invention provides an assembled structure combining a prefabricated steel frame and concrete composite wall columns. The prefabricated components can be in various forms. When using light steel keel walls, the amount of on-site concrete pouring can be reduced, the construction speed can be improved, and compared with the concrete module structure, the wall thickness is reduced and the house efficiency is high.

[0020] 3. The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns. Branch columns and branch beams are arranged on the module structure to improve the self-bearing capacity of the module structure, forming a steel frame that can bear its own weight or the weight of 1-2 layers on the module without affecting the concrete casting work of this layer, and at the same time facilitates its lifting and transportation.

[0021] 4. The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns. The columns and beams are formed by splicing adjacent branch columns and adjacent branch beams. After being assembled on site and the shear walls are cast in place, the structural system returns to the concrete shear wall system, which belongs to the conventional force-bearing system. The modular building obtains the same bearing capacity and lateral resistance as the conventional concrete building, and is easy to install and has high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the splicing of the module structure of the same layer involved in the present invention;

[0023] Figure 2 A schematic diagram of a module structure according to the present invention;

[0024] Figure 3 A schematic plan view of the positions of the columns involved in the first embodiment of the present invention;

[0025] Figure 4A schematic plan view of the positions of the columns involved in the fourth embodiment of the present invention;

[0026] Figure 5 For the present invention Figure 1 AA in the cross-sectional view of Example 3;

[0027] Figure 6 For the present invention Figure 1 BB in the cross-sectional view of the third embodiment;

[0028] Figure 7 A schematic plan view of the positions of the columns involved in the fifth embodiment of the present invention;

[0029] Figure 8 For the present invention Figure 7 Cross-section at the middle CC;

[0030] Figure 9 This is a schematic structural diagram of the end wall involved in Example 5 of the present invention.

[0031] In the figure: 1-column, 11-branched column, 12-reinforcement skeleton, 2-crossbeam, 21-branched beam, 3-end wall, 31-end wall unit, 4-precast component, 5-top plate, 6-bottom plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1-3 As shown, the present invention provides an assembled structure combining a prefabricated steel frame and concrete composite wall columns, which is assembled from several modular structures, including columns 1, beams 2, end walls 3, prefabricated components 4, a top plate 5 and a bottom plate 6; the columns 1 are arranged at intervals and located at the intersection of multiple walls; the beams 2 are connected to the columns 1; the end walls 3 are respectively connected to the columns 1 and the beams 2; and the prefabricated components 4 are respectively connected to the beams 2 and the end walls 3.

[0035] The modular structure includes a branch column 11, a branch beam 21, an end wall unit 31, a prefabricated unit, a top plate unit and a bottom plate unit; the branch column 11 is vertically arranged corresponding to the column 1, and the branch columns 11 of the adjacent modular structures are spliced ​​together to form a column bracket, concrete is poured in the column bracket, and the column bracket and the cast-in-place concrete together form the column 1; the branch beam 21 is arranged along the edges of the top and bottom surfaces of the modular structure and corresponds to the cross beam 2, and the two ends of the branch beam 21 are respectively fixedly connected to the two branch columns 11, and the branch beams 21 of the adjacent modular structures are spliced ​​together to form a beam bracket, concrete is poured in the beam bracket, and the beam bracket and the cast-in-place concrete together form the cross beam 2 ; The end wall unit 31 includes a side panel and a protrusion; the side panel is arranged corresponding to the end wall 3 and is respectively connected to the branch column 11 and the branch beam 21; the protrusion is arranged on the surface of the side panel facing the outside of the module structure, and concrete is poured between the end wall units 31 of the laterally adjacent module structures. The end wall unit 31 and the cast-in-place concrete together constitute the end wall 3, which serves as the main load-bearing wall; the prefabricated unit is arranged at least on one side of the module structure, and is respectively connected to the end wall unit 31 and the branch beam 21. The prefabricated units of the laterally adjacent module structures together constitute a prefabricated component 4; the top plate unit and the bottom plate unit are respectively arranged at the top and bottom of the module structure.

[0036] The module structure is a rectangular structure.

[0037] The split column 11 and the split beam 21 together form a rectangular frame. Preferably, the split column 11 is arranged on the outside of the module structure and is an angle steel structure. The inner corner of the angle steel of the split column 11 faces the outside of the module structure. The column bracket of the column 1 located at the intersection of two walls includes one split column 11; the column bracket of the column 1 located at the intersection of three walls includes two split columns 11; the column bracket of the column 1 located at the intersection of four walls includes four split columns 11, and the cross-section of the column bracket is approximately rectangular. Stiffening ribs are arranged at intervals from top to bottom on the side of the inner corner of the split column 11 to enhance the structural strength of the split column 11. The split column 11 can also be a steel component such as steel section.

[0038] The branch beam 21 is an angle steel or an I-beam. When the branch beam 21 is an angle steel, its inner angle faces the outside of the module structure. The beam support of the crossbeam 2 includes two branch beams 21.

[0039] End wall 3, as a load-bearing wall, is internally provided with transverse and longitudinal reinforcement. The transverse reinforcement connects to adjacent column supports, while the longitudinal reinforcement connects to the longitudinal reinforcement of adjacent end walls 3, enhancing the structural integrity of the modules. If the number of longitudinal reinforcements in end wall 3 does not meet the calculation requirements, channel steel is installed inside the end wall 3 to seal the outer end of the end wall 3 away from the column 1, thereby enhancing its bearing strength.

[0040] Vertical reinforcement is installed within column 1 and is connected to adjacent vertical reinforcement via additional reinforcement. Overlap reinforcement is welded to the surface of the branched column 11. The overlapping reinforcement is arranged transversely and evenly spaced vertically, with spacing that meets calculation and construction requirements. The branched column 11 is connected to the transverse reinforcement via the overlapping reinforcement. Connecting reinforcement is welded to the surface of the branched column 11 and is connected to adjacent branched columns 11 via additional reinforcement. Reinforcement plates are welded to the branched column 11.

[0041] The side panels are constructed of cement, gypsum, metal, or other high-strength interior panels. The protruding portions are reinforced with steel bars or steel trusses, which are fixedly connected to the side panels. Tie bars are used to connect the end wall units 31 of adjacent modules.

[0042] The prefabricated component 4 is a composite lightweight wall, such as a light steel stud wall or autoclaved aerated concrete slats. A light steel stud wall is preferred, and rock wool can be filled inside. The prefabricated component 4 is installed on at least one side of the modular structure. The prefabricated units are divided into sub-units and parent units, which are assembled to form the composite lightweight wall. Sub-units and parent units are installed in adjacent modular structures, and the sub-units and parent units are connected to form the prefabricated component 4.

[0043] The top plate unit is a steel truss floor deck. After being installed in place, concrete is poured to form the top plate 5.

[0044] The bottom plate unit is a steel truss floor deck or a building ground layer, and ground keels are arranged at intervals inside the bottom plate unit. Both ends of the ground keels are fixedly connected to the beams 2. Preferably, the ground keels are angle steel structures.

[0045] Mechanical and electrical pipelines, windows, pipes and other components can be prefabricated in the factory and combined with the modular structure.

[0046] When the side of the modular structure serves as the outer side of the building structure, the side is not assembled with other modular structures, and the end wall unit 31 in the side has the same structure as the end wall 3 , and the prefabricated unit in the side has the same structure as the prefabricated component 4 .

[0047] Example 2

[0048] The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns, which is the same as the first embodiment except for the prefabricated units.

[0049] Prefabricated component 4 is a composite lightweight wall, preferably a light steel stud wall, which can be filled with rock wool. The prefabricated unit is divided into a sub-unit and a parent unit. The parent unit is a light steel stud wall, including a keel frame and decorative panels arranged on both sides of the keel frame. The sub-unit has a reserved installation opening, and the parent unit is inserted into the reserved installation opening of the sub-unit. The sub-units and parent units are respectively installed in the horizontally adjacent module structure to form prefabricated component 4.

[0050] Example 3

[0051] The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns, which is the same as the first embodiment except for the prefabricated units.

[0052] like Figure 5 、 6 As shown, the structure of the prefabricated component 4 is the same as that of the end wall 3. The prefabricated unit and the end wall unit 31 are produced and processed as a whole. The prefabricated unit includes a prefabricated side panel and a prefabricated protrusion. Concrete is poured between the prefabricated units of the laterally adjacent module structures. The prefabricated unit and the cast-in-place concrete together constitute the prefabricated component 4.

[0053] Transverse and longitudinal reinforcements are provided between precast units of transversely adjacent modular structures. The transverse reinforcements are connected to the transverse reinforcements in the end wall 3; the longitudinal reinforcements are connected to the longitudinal reinforcements of the longitudinally adjacent precast components 4. The precast units of transversely adjacent modular structures are connected by tie bars.

[0054] Example 4

[0055] The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns, such as Figure 4 As shown, the column 11 is an angle steel structure, located outside the modular structure, with the inner corner of the angle facing inward. The column 11 of adjacent modular structures is assembled to form a column bracket. A steel frame 12 is placed within the bracket, and concrete is poured. Together, the column bracket, steel frame 12, and cast-in-place concrete form the column 1. No overlapping reinforcement is required on the surface of the column 11; the steel frame 12 is connected to the transverse reinforcement.

[0056] Connecting bars and column internal vertical bars are also provided in the column 1. The connecting bars are arranged horizontally, and their ends extend outside the column 1 and are connected to the horizontal bars in the end wall 3; the column internal vertical bars are connected to the vertical bars in the columns adjacent to them in the longitudinal direction.

[0057] The rest of the structure is the same as that of the first embodiment.

[0058] Example 5

[0059] The present invention provides an assembled structure composed of a prefabricated steel frame and concrete composite wall columns, such as Figure 7 As shown, the branch column 11 is arranged on the inner side of the module structure and is an angle steel structure. The angle steel structure fits in the inner corner of the module structure.

[0060] like Figure 8As shown, the branch beam 21 includes an upper branch and a lower branch, both of which are angle steel structures. The upper branch is arranged on the inner side of the branch column 11; the lower branch is arranged on the outer side of the branch column 11. The upper branches and lower branches of adjacent module structures constitute the supporting skeleton of the crossbeam 2. Preferably, a steel plate is arranged between the lower branches of adjacent module structures, and the lower branches and the steel plate together constitute the casting bottom formwork of the crossbeam 2. A steel plate is arranged between the upper branch and the lower branch, and the upper branch, the lower branch and the steel plate together constitute the casting side formwork of the crossbeam 2. When a single module structure is used or one side of the module structure is at the edge of the building, the crossbeam 2 includes a group of branch beams 2, and another template is set up on the other side for the casting construction of the crossbeam 2.

[0061] like Figure 9 As shown, end wall 3 is a prefabricated double-sided composite concrete shear wall with a hollow interior, which is concreted on-site. The factory secures the double-sided prefabricated concrete shear wall to the branch columns 11 and branch beams 21. The length of end wall 3 is determined based on structural calculations, with a thickness of no less than 200 mm. End walls 3 are staggered between adjacent modular structures to prevent interference. Specifically, when end walls 3 are installed in one modular structure, corresponding notches are provided in adjacent modular structures to facilitate installation and integration of end walls 3.

[0062] The prefabricated component 4 is a combined lightweight wall.

[0063] The rest of the structure is the same as that of the first embodiment.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An assembled structure composed of a prefabricated steel frame and concrete composite wall columns, characterized by: It is assembled from a modular structure and includes columns (1), beams (2), end walls (3) and prefabricated components (4); the columns (1) are arranged at intervals and located at the intersection of the walls; the beams (2) are connected to the columns (1); the end walls (3) are respectively connected to the columns (1) and the beams (2); and the prefabricated components (4) are respectively connected to the beams (2) and the end walls (3); The modular structure comprises a branch column (11), a branch beam (21), an end wall unit (31) and a prefabricated unit; the branch column (11) is vertically arranged corresponding to the column (1), and the branch columns (11) of the adjacent modular structures are spliced ​​together to form a column bracket, and concrete is poured into the column bracket; the branch beam (21) corresponds to the cross beam (2), and its two ends are respectively fixedly connected to the two branch columns (11), and the branch beams (21) of the adjacent modular structures are spliced ​​together to form a beam bracket, and concrete is poured into the beam bracket; the The end wall unit (31) includes a side panel and a protrusion; the side panel is provided corresponding to the end wall (3) and is respectively connected to the branch column (11) and the branch beam (21); the protrusion is provided on the surface of the side panel facing the outside of the module structure, and concrete is poured between the end wall units (31) of the laterally adjacent module structures; the prefabricated unit is provided on at least one side of the module structure and is respectively connected to the end wall unit (31) and the branch beam (21), and the prefabricated units of the laterally adjacent module structures together constitute a prefabricated component (4); The modular structure forms a steel frame by setting up branch columns and branch beams, which can bear the weight of itself or the weight of 1-2 floors above the module without affecting the concrete pouring work of this floor; in addition, by splicing adjacent branch columns and adjacent branch beams to form columns and beams, after being assembled on site and the shear walls are cast in place, the structural system returns to the concrete shear wall system.

2. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The limb column (11) is an angle steel structure, which is arranged outside the module structure, with its inner corner facing the outside of the module structure; the surface of the limb column (11) is welded with overlapping steel bars and a reinforcing plate.

3. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The limb column (11) is an angle steel structure, which is arranged outside the module structure, with its inner corner facing the inside of the module structure; a steel frame (12) is arranged inside the column bracket; and connecting bars are also arranged inside the column (1); the connecting bars are arranged transversely, and their ends extend outside the column (1).

4. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The limb column (11) is an angle steel structure, which is arranged inside the module structure, and its inner corner is aligned with the inner corner of the module structure; the end wall (3) is a prefabricated double-sided composite concrete shear wall, which is hollow inside, and cast-in-situ concrete is arranged in the hollow part, and the end walls (3) between adjacent module structures are staggered.

5. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The vertical reinforcement is provided inside the column (1), and the vertical reinforcement is connected to the vertical reinforcement of the column adjacent to the vertical reinforcement in the longitudinal direction via additional reinforcement; transverse reinforcement and longitudinal reinforcement are also provided in the end wall (3); the transverse reinforcement is connected to the adjacent column (1); and the longitudinal reinforcement is connected to the longitudinal reinforcement of the end wall (3) adjacent to the vertical direction.

6. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The prefabricated component (4) is a combined lightweight wall; the prefabricated unit is divided into a sub-unit and a mother unit; and the transversely adjacent module structures are respectively equipped with the sub-units and the mother unit.

7. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 6, characterized in that: The combined lightweight wall is a light steel keel wall, the sub-unit is a decorative panel; the mother unit includes a decorative panel and a keel frame, and the sub-unit and the mother unit are assembled to form a light steel keel wall.

8. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 6, characterized in that: The combined lightweight wall is a light steel keel wall, and the mother unit is a light steel keel wall; the sub-unit has a reserved installation opening, and the mother unit is embedded in the reserved installation opening of the sub-unit.

9. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: The prefabricated units include prefabricated side panels and prefabricated protrusions, and concrete is poured between the prefabricated units of the laterally adjacent modular structures.

10. The assembled structure of a prefabricated steel frame and concrete composite wall columns according to claim 1, characterized in that: It also includes a top plate (5) and a bottom plate (6); the module structure includes a top plate unit and a bottom plate unit; the top plate unit is a steel truss floor deck; the bottom plate unit is a steel truss floor deck or a building ground layer, and ground keels are arranged at intervals inside.

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