Concrete-wrapped special-shaped column high-rise assembly type frame buckling-restrained shear wall structure system and assembly method

Abstract

The invention belongs to the technical field of assembly type structure engineering, and discloses a concrete-wrapped special-shaped column high-rise assembly type frame buckling-restrained shear wall structure system. By arranging the outer wrapped concrete circular steel tube concrete special-shaped column, the outer wrapped concrete circular steel tube concrete buckling-restrained shear wall and the prefabricated outer wrapped thin concrete, the problem that a traditional section type column ridge protrudes indoors is solved, and the effect that the interior is regular and attractive is achieved; the section of the outer-wrapped concrete circular steel tube concrete special-shaped column and the section of the outer-wrapped concrete circular steel tube concrete buckling-restrained shear wall are formed by circular steel tubes, the production utilization rate is high, prefabricated outer-wrapped thin concrete is adopted, the thickness of a protective layer is smaller than the thickness requirement of a protective layer in the design specification of a combined structure, but the structural stress requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated structural engineering, and specifically relates to a high-rise prefabricated frame buckling-resisting shear wall structure system with exterior concrete special-shaped columns and an assembly method. Background Art

[0002] Prefabricated buildings use standardized and modular components. These components can be produced in advance in the factory, and the production process can be strictly controlled to improve the precision and quality of the components, thereby improving the structural quality of the entire building. They are then transported to the site for assembly, thereby significantly shortening the on-site construction period. Compared with traditional construction methods, prefabricated buildings reduce dependence on materials such as scaffolding, scaffolding, and formwork, while reducing construction waste and wastewater discharge, which is conducive to resource conservation and environmental protection.

[0003] Most existing prefabricated structures use square columns, but the square cross-section has the problem of protruding column ribs, which not only affects the appearance, but also reduces the indoor space and hinders the arrangement and decoration of furniture. However, the thickness of the column limbs of the special-shaped column structure is the same as the wall thickness, which avoids the problem of protruding column ribs indoors; steel structure buildings are light in weight, high in strength, easy to construct and install, have good seismic performance, and are recyclable, which is conducive to industrial production, but there are still problems such as fire prevention, corrosion prevention, and instability that need to be solved separately; although traditional steel-concrete special-shaped columns can solve the problems of protruding column ribs, stability of steel sections, fire prevention and corrosion prevention, etc., the required amount of steel bars is large, the concrete wrapping layer is thick, and the weight is heavy, which is not suitable for use in prefabricated structures; on the other hand, the nodes of traditional steel-concrete structures have on-site connections that require the simultaneous connection of steel sections and steel bars. A large number of longitudinal bars of the beams also need to pass through the column wall or be welded to the column. The connection is complicated and requires on-site formwork and concrete pouring, which makes construction difficult, so they need to be improved. Summary of the Invention

[0004] The object of the present invention is to provide a high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete special-shaped columns and an assembly method to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a high-rise assembled frame buckling-resistance shear wall structure system with concrete-clad special-shaped columns, comprising:

[0006] An underground part, wherein the underground part includes a raft foundation, basement beams, basement retaining walls and a basement top slab, and the raft foundation, basement beams, basement retaining walls and basement top slab are all constructed by cast-in-situ concrete;

[0007] Outer concrete round steel tube concrete special-shaped column, the outer concrete round steel tube concrete special-shaped column includes a variety of special-shaped columns, namely L-shaped outer concrete round steel tube concrete special-shaped column corner column, T-shaped outer concrete round steel tube concrete special-shaped column side column, cross-shaped outer concrete round steel tube concrete special-shaped column center column, the outer concrete round steel tube concrete special-shaped column is composed of a fixed round steel tube, longitudinal steel bars, stirrups, prefabricated outer thin concrete and concrete inside the steel tube, the concrete inside the fixed round steel tube in each of the outer concrete round steel tube concrete special-shaped columns is cast-in-situ concrete, each of the L-shaped outer concrete round steel tube concrete special-shaped columns is cast-in-situ concrete, and the outer concrete round steel tube concrete special-shaped columns are composed of a fixed round steel tube, longitudinal steel bars, stirrups, prefabricated outer thin concrete and concrete inside the steel tube, the concrete inside the fixed round steel tube in each of the ... cast-in-situ concrete, and the outer concrete round steel tube concrete special-shaped columns are composed of cast-in-situ concrete, The column bases of the concrete corner columns, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns, and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns are all welded and fixed with the connecting steel plates, and the column foot portions of each of the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns, and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns are provided with cast-in-situ concrete, and the node partitions, overhanging cover plates, overhanging plywood, L-shaped end plates, T-shaped end plates, and cross-shaped end plates are welded together as a whole during factory prefabrication and installed in the beam-column connection node area of ​​the concrete-encased circular steel tube concrete-filled special-shaped column;

[0008] An H-shaped steel beam, wherein the upper flange, the lower flange and the web of the H-shaped steel beam are all provided with bolt holes;

[0009] A column-column connection node, comprising an L-shaped end plate, a T-shaped end plate, a cross end plate, and a column-column connection piece installed at the top of the lower column and the bottom of the upper column of each L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column, and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column middle column, wherein the column-column connection piece is composed of a stamped curved plate and steel bars;

[0010] A beam-column connection node, wherein the beam-column connection node comprises an extended cover plate, high-strength bolts, and an extended clamping plate installed on each of the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns, and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns, wherein the extended cover plate and the extended clamping plate are provided with bolt holes;

[0011] Steel truss floor deck, the steel truss floor deck comprises galvanized steel plate, fixed steel trusses, studs and cast-in-place concrete, and the steel truss floor deck uses the galvanized steel plate as a supporting platform;

[0012] The invention discloses a concrete-encased circular steel tube concrete-filled anti-buckling shear wall, which comprises a fixed circular steel tube, steel bars and prefabricated outer-clad thin concrete.

[0013] As a preferred embodiment of the present invention, all parts of the concrete-encased circular steel tube concrete-filled special-shaped columns, H-shaped steel beams, reinforced truss floor decks and concrete-encased circular steel tube concrete-filled buckling-resistance shear walls except for the cast-in-situ concrete are prefabricated in the factory.

[0014] As a preferred embodiment of the present invention, the stirrups and steel bars of the concrete-encased circular steel tube concrete-filled special-shaped columns are arranged so as not to pass through the L-shaped end plates, T-shaped end plates and cross-shaped end plates.

[0015] As a preferred embodiment of the present invention, the protective layer of the concrete-wrapped circular steel tube concrete-filled special-shaped columns, including the L-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column corner columns, the T-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column side columns, and the cross-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column center columns, is less than the protective layer thickness requirement in the composite structure design code JGJ138-2016, but meets the structural stress requirements.

[0016] As a preferred embodiment of the present invention, the fixed circular steel tubes of the concrete-encased circular steel tube concrete-filled special-shaped columns and the arrangement of the concrete-encased circular steel tube concrete-filled anti-buckling shear walls can be expanded in the wall limb direction.

[0017] As a preferred embodiment of the present invention, the L-shaped end plate, the T-shaped end plate and the cross-shaped end plate are all provided with a circular hole slightly larger than the diameter of the fixed round steel pipe.

[0018] As a preferred embodiment of the present invention, the overhanging cover plate of the beam-column connection node serves as a temporary support and positioning during assembly, thereby facilitating the construction of the beam-column node.

[0019] As a preferred embodiment of the present invention, the concrete-encased circular steel tube concrete-filled special-shaped columns can be arranged through-through.

[0020] As a preferred embodiment of the present invention, node partitions are arranged between the L-shaped end plates, T-shaped end plates and cross-shaped end plates in the column-to-column connection nodes.

[0021] As a preferred embodiment of the present invention, the basement top plate can be a composite plate, and the basement beams can be precast concrete beams.

[0022] As the present invention is preferred, comprising the following steps:

[0023] S1: Prefabricate concrete-encased circular steel tube concrete-filled special-shaped columns, H-shaped steel beams, reinforced truss floor slabs, and concrete-encased circular steel tube concrete-filled buckling-resistance shear walls in the factory and transport them to the site;

[0024] S2: Underground structure construction: hoisting concrete-encased circular steel tube concrete-filled special-shaped columns to designated locations, and then pouring in-situ concrete for the entire structure. The pouring scope includes the raft foundation, basement beams, basement retaining walls, basement roof, and the concrete post-casting strips at the base of the concrete-encased circular steel tube concrete-filled special-shaped columns.

[0025] S3, after completing the construction of the basement part, first weld the steel bars of the column-to-column connector to the inner column top area of ​​the fixed circular steel tube of the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column, and then pour concrete. The pouring range is the inner part of the fixed circular steel tube below the first-floor column top of the concrete-encased circular steel tube concrete-filled special-shaped column to achieve the connection between the column-to-column connector and the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column;

[0026] S4, connect the L-shaped end plates, T-shaped end plates and cross-shaped end plates installed at the bottom area of ​​the second-floor concrete-encased circular steel tube concrete-encased special-shaped columns and the L-shaped end plates, T-shaped end plates and cross-shaped end plates installed at the top area of ​​the first-floor concrete-encased circular steel tube concrete-encased special-shaped columns by welding, and the welding range is parallel to the wall pier;

[0027] S5, cast-in-place concrete, the pouring range is the interior of the fixed circular steel tube below the second-story column top of the concrete-encased circular steel tube concrete-encased special-shaped column, and the upper and lower columns are connected by column-to-column connectors and welded L-shaped end plates, T-shaped end plates and cross-shaped end plates;

[0028] S6, align and assemble the extended cover plates and extended clamping plates installed on the corner columns of the L-shaped concrete-encased circular steel tube concrete-filled special-shaped columns, the side columns of the T-shaped concrete-encased circular steel tube concrete-filled special-shaped columns, and the center columns of the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped columns with the H-shaped steel beams, and connect the beams and columns with high-strength bolts;

[0029] S7, connecting the concrete-encased circular steel tube concrete-filled buckling restrained shear wall and the H-shaped steel beam by welding, and then pouring concrete, the pouring range of which is the post-cast strip set in the concrete-encased circular steel tube concrete-filled buckling restrained shear wall;

[0030] S8, connecting the steel truss floor deck and the H-shaped steel beam by welding studs, and casting concrete on the steel truss floor deck to obtain a cast-in-place floor layer.

[0031] The beneficial effects of the present invention are as follows:

[0032] 1. The present invention arranges concrete-encased circular steel tube concrete-filled special-shaped columns, concrete-encased circular steel tube concrete-filled buckling-restrained shear walls and prefabricated concrete-encased thin concrete. By arranging concrete-encased circular steel tube concrete-filled special-shaped columns, the problem of protruding columns of traditional cross-section forms in the interior is avoided, thereby achieving a neat and beautiful interior effect. In addition, the concrete-encased circular steel tube concrete-filled special-shaped columns and the concrete-encased circular steel tube concrete-filled buckling-restrained shear walls adopt circular steel tubes to form the cross-section, with high production utilization rate. Prefabricated concrete-encased thin concrete is adopted, and the protective layer is less than the protective layer thickness requirement in the composite structure design specification, but meets the structural force requirements, is convenient for transportation, reduces the production and transportation costs, and is conducive to promotion in prefabricated structures.

[0033] 2. The present invention sets out concrete-wrapped circular steel tube concrete special-shaped columns, H-shaped steel beams, column-column connection nodes, beam-column connection nodes, steel truss floor slabs and concrete-wrapped circular steel tube concrete anti-buckling shear walls, so that all parts except cast-in-situ concrete are prefabricated in the factory, reducing on-site wet work and speeding up construction. In addition, the stirrups and longitudinal reinforcement of the concrete-wrapped circular steel tube concrete special-shaped columns do not pass through the L-shaped end plates, T-shaped end plates and cross-shaped end plates, simplifying the node connection. The beam-column connection nodes are assembled with all bolts, with a small number of connecting parts, simple assembly, and increased construction speed. The extended cover plate is used as a temporary support to improve the docking accuracy. At the same time, node partitions are set at the column-to-column connection nodes to enhance the node stiffness, realizing the design concept of strong nodes and weak components in the seismic code. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the present invention;

[0035] Figure 2 Schematic diagram of the above-ground L-shaped concrete-encased circular steel tube concrete-filled special-shaped corner column of the present invention;

[0036] Figure 3 Schematic diagram of the above-ground T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column of the present invention;

[0037] Figure 4 Schematic diagram of the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column in the above-ground portion of the present invention;

[0038] Figure 5 Schematic diagram of the underground part of the invention with concrete-encased circular steel tube concrete-filled special-shaped column;

[0039] Figure 6 This is a schematic diagram of an H-shaped steel beam of the present invention;

[0040] Figure 7 This is a schematic diagram of a steel truss floor deck of the present invention;

[0041] Figure 8 Schematic diagram of the concrete-encased circular steel tube concrete-reinforced buckling-resistance shear wall of the present invention;

[0042] Figure 9 This is a schematic diagram of the corner column-column node connection of the L-shaped concrete-encased circular steel tubular concrete-filled special-shaped column of the present invention;

[0043] Figure 10 This is a schematic diagram of the side column-column node connection of the T-shaped concrete-encased circular steel tubular concrete-filled special-shaped column of the present invention;

[0044] Figure 11 This is a schematic diagram of the column-column node connection of the cross-shaped concrete-encased circular steel tubular concrete-filled special-shaped column of the present invention;

[0045] Figure 12 This is a schematic diagram of the arrangement of the concrete-encased circular steel tube concrete-filled special-shaped columns according to the present invention;

[0046] Figure 13 It is an enlarged schematic diagram of the column-to-column connection member of the present invention;

[0047] Figure 14 This is a schematic diagram of the connection between the L-shaped concrete-encased circular steel tubular concrete-filled special-shaped corner column and the H-shaped steel beam of the present invention;

[0048] Figure 15 This is a schematic diagram of the connection between the side columns of the T-shaped concrete-encased circular steel tubular concrete-filled special-shaped columns and the H-shaped steel beams of the present invention;

[0049] Figure 16 This is a schematic diagram of the connection between the cross-shaped concrete-encased circular steel tubular concrete-filled special-shaped column and the H-shaped steel beam of the present invention;

[0050] Figure 17 This is a schematic diagram of the connection between the steel truss floor deck and the H-shaped steel beam of the present invention;

[0051] Figure 18 This is a schematic diagram of the connection between the cross-shaped concrete-encased circular steel tubular concrete-filled special-shaped center column and the prefabricated basement beam of the present invention;

[0052] Figure 19 This is a schematic diagram of the connection between the prefabricated basement top plate and the prefabricated basement beams of the present invention.

[0053] Figure: 1. Raft foundation; 2. Concrete-encased circular concrete-filled steel tube special-shaped column; 3. H-shaped steel beam; 4. Column-column connection node; 5. Beam-column connection node; 6. Reinforced truss floor deck; 7. Concrete-encased circular concrete-filled steel tube buckling-resistance shear wall; 8. Basement beam; 9. Basement retaining wall; 10. Basement roof; 11. Fixed circular steel tube; 12. Reinforcement; 13. Stirrups; 14. Node partition; 15. Extended cover plate; 16. Column-column connection piece; 17. Stamped curved plate ; 18. High-strength bolts; 19. Extended splints; 20. Connecting steel plates; 21. L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns; 22. T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns; 23. Cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns; 24. L-shaped end plates; 25. T-shaped end plates; 26. Cross-shaped end plates; 27. Galvanized steel plates; 28. Fixed steel trusses; 29. ​​Bolts; 30. Cast-in-place concrete; 31. Precast thin concrete-encased. DETAILED DESCRIPTION

[0054] 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.

[0055] like Figures 1 to 19 As shown, an embodiment of the present invention provides a high-rise assembled frame buckling-restrained shear wall structure system with exterior concrete special-shaped columns, comprising:

[0056] The underground part includes a raft foundation 1, basement beams 8, basement retaining walls 9 and a basement top slab 10. The raft foundation 1, basement beams 8, basement retaining walls 9 and basement top slab 10 are all constructed by cast-in-place concrete 30.

[0057] The outer concrete-wrapped circular steel tube concrete-filled special-shaped column 2 includes a variety of special-shaped columns, namely L-shaped outer concrete-wrapped circular steel tube concrete-filled special-shaped column corner column 21, T-shaped outer concrete-wrapped circular steel tube concrete-filled special-shaped column side column 22, and cross-shaped outer concrete-wrapped circular steel tube concrete-filled special-shaped column middle column 23. The outer concrete-wrapped circular steel tube concrete-filled special-shaped column 2 is composed of a fixed circular steel tube 11, longitudinal steel bars 12 and stirrups 13 arranged on the outside of the circular steel tube, prefabricated outer thin concrete 31 and concrete inside the steel tube. The concrete inside the fixed circular steel tube 11 of each outer concrete-wrapped circular steel tube concrete-filled special-shaped column 2 is cast-in-place concrete 30, and each L-shaped outer concrete-wrapped circular steel tube concrete-filled special-shaped column corner column 21. The column bases of the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns 22 and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column 23 are welded and fixed to the connecting steel plate 20. The column bases of each L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column 21, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns 22 and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column 23 are provided with cast-in-situ concrete 30. The node partition 14, the extended cover plate 15, the extended clamping plate 19, the L-shaped end plate 24, the T-shaped end plate 25 and the cross-shaped end plate 26 are welded together as a whole during factory prefabrication and installed in the beam-column connection node 5 area of ​​the concrete-encased circular steel tube concrete-filled special-shaped column 2.

[0058] H-shaped steel beam 3, the upper flange, lower flange and web of the H-shaped steel beam 3 are all provided with bolt holes;

[0059] The column-column connection node 4 includes an L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column 21, a T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column 22, and a cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column middle column 23, an L-shaped end plate 24, a T-shaped end plate 25, and a cross end plate 26 installed at the lower column top and upper column bottom, and a column-column connection piece 16. The column-column connection piece 16 is composed of a stamped curved plate 17 and steel bars 12.

[0060] The beam-column connection node 5 includes an extended cover plate 15, high-strength bolts 18, and an extended clamping plate 19 installed on each L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column 21, T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column 22, and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column 23. The extended cover plate 15 and the extended clamping plate 19 are both provided with bolt holes.

[0061] The steel truss floor deck 6 includes a galvanized steel plate 27, fixed steel trusses 28, bolts 29 and cast-in-place concrete 30. The steel truss floor deck 6 uses the galvanized steel plate 27 as a supporting platform;

[0062] The concrete-encased circular steel tube concrete-filled anti-buckling shear wall 7 includes a fixed circular steel tube 11, steel bars 12 and prefabricated outer-clad thin concrete 31.

[0063] By producing and processing beams, columns, slabs and buckling-resistance shear wall components in the factory, the columns and buckling-resistance shear wall components are covered with concrete to solve the problems of fire prevention, corrosion prevention, stability and the thickness and self-weight of the component wrapping layer, and the cross-section is composed of round steel tubes with high material utilization rate; the stirrups and longitudinal reinforcement are arranged without passing through the node area, and bolt assembly is used to simplify the node connection; common H-shaped steel beams are used for assembly; steel truss floor decking is used, which is both the load-bearing steel bar and the formwork for the construction scaffolding and floor slabs. The high-rise prefabricated frame buckling-resistance shear wall structure system with covered concrete special-shaped columns has a fast assembly speed, a short construction period, saves costs, has good economic and social benefits, and ensures the quality of the project.

[0064] Among them, except for the cast-in-situ concrete 30, all other parts of the concrete-encased circular steel tube concrete-filled special-shaped columns 2, H-shaped steel beams 3, steel truss floor decks 6 and concrete-encased circular steel tube concrete-filled buckling-resistance shear walls 7 are prefabricated in the factory.

[0065] By prefabricating the concrete-encased circular steel tube concrete-filled special-shaped columns 2, H-shaped steel beams 3, reinforced truss floor decks 6 and concrete-encased circular steel tube concrete-filled buckling-resistance shear walls 7 in a factory, the quality of the components can be improved through industrialized production, while on-site wet work can be reduced and the construction speed can be accelerated.

[0066] The stirrups 13 and the steel bars 12 of the concrete-encased circular steel tube concrete-filled special-shaped column 2 are arranged so as not to pass through the L-shaped end plate 24 , the T-shaped end plate 25 and the cross-shaped end plate 26 .

[0067] Since the stirrups 13 and steel bars 12 of the concrete-encased circular steel tube concrete-filled special-shaped columns 2 do not pass through the L-shaped end plates 24, T-shaped end plates 25 and cross-shaped end plates 26, bolt nodes can be used to simplify the connection and speed up the construction.

[0068] Among them, the protective layer of the concrete-wrapped circular steel tube concrete-filled special-shaped column 2, including the L-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column corner column 21, the T-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column side column 22, and the cross-shaped concrete-wrapped circular steel tube concrete-filled special-shaped column center column 23, is less than the protective layer thickness requirement of the composite structure design code JGJ138-2016, but meets the structural force requirements.

[0069] It reduces production and transportation costs and is conducive to its promotion in prefabricated structures.

[0070] The arrangement of the fixed circular steel tubes 11 of the concrete-encased circular steel tube concrete-filled special-shaped columns 2 and the concrete-encased circular steel tube concrete-filled buckling-restrained shear walls 7 can be expanded in the direction of the wall limbs.

[0071] The arrangement of the fixed circular steel tubes 11 of the concrete-encased circular steel tube concrete-filled special-shaped columns 2 can be expanded in the direction of the wall according to the force requirements, thereby improving the construction flexibility of the entire structure.

[0072] The L-shaped end plate 24 , the T-shaped end plate 25 and the cross-shaped end plate 26 are all provided with a circular hole slightly larger than the diameter of the fixed round steel pipe 11 .

[0073] By providing a circular hole slightly larger than the diameter of the fixed circular steel pipe 11 , it is convenient to assemble the fixed circular steel pipe 11 .

[0074] The overhanging cover plate 15 of the beam-column connection node 5 serves as a temporary support and positioning during assembly, facilitating the construction of the beam-column node.

[0075] When the beam-column connection node 5 is installed, the H-shaped steel beam 3 is installed on the same side of the overhanging clamping plate 19. The overhanging cover plate 15 and the overhanging clamping plate 19 of the beam-column connection node 5 have bolt holes that are opposite in position and of the same size.

[0076] Among them, the concrete-wrapped circular steel tube concrete-filled special-shaped columns 2 can be arranged through.

[0077] Considering that most basement construction adopts conventional cast-in-place form, post-cast strips are set on the column foot part of the concrete-wrapped circular steel tube concrete-filled special-shaped column 2 and the top of the basement, so that the concrete-wrapped circular steel tube concrete-filled special-shaped column 2 and the underground part form a whole. The scope of the post-cast strip is small and does not affect the overall construction progress.

[0078] Among them, the node partition plate 14 is arranged between the L-shaped end plate 24, the T-shaped end plate 25 and the cross-shaped end plate 26 in the column-to-column connection node 4.

[0079] By providing the node spacers 14 , the node rigidity can be enhanced.

[0080] The basement top plate 10 may be a composite plate, and the basement beam 8 may be a precast concrete beam.

[0081] During the construction of the basement, the basement beams 8 that are not connected to the basement retaining wall 9 can be prefabricated basement beams, and the basement top plate 10 connected thereto can be prefabricated composite plates.

[0082] The steps include:

[0083] S1, prefabricate concrete-encased circular steel tube concrete-filled special-shaped columns 2, H-shaped steel beams 3, reinforced steel truss floor decks 6, and concrete-encased circular steel tube concrete-filled buckling-resistance shear walls 7 in a factory and transport them to the site;

[0084] S2, carry out underground structure construction, hoist the concrete-encased circular steel tube concrete-filled special-shaped column 2 to the designated location, and then use cast-in-place concrete 30 to cast the entire structure. The casting scope includes the raft foundation 1, basement beams 8, basement retaining walls 9, basement top slab 10, and the concrete of the post-cast zone at the foot of the concrete-encased circular steel tube concrete-filled special-shaped column 2;

[0085] S3, after the construction of the basement is completed, first weld the steel bars 12 of the column-to-column connector 16 to the inner column top area of ​​the fixed circular steel tube 11 of the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column 2, and then pour concrete 30, the pouring range of which is the inner part of the fixed circular steel tube 11 below the first-floor column top of the concrete-encased circular steel tube concrete-filled special-shaped column 2, to achieve the connection between the column-to-column connector 16 and the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column 2;

[0086] S4, connecting the L-shaped end plate 24, T-shaped end plate 25 and cross-shaped end plate 26 installed in the bottom area of ​​the second-floor concrete-encased circular steel tube concrete-encased special-shaped column 2 with the L-shaped end plate 24, T-shaped end plate 25 and cross-shaped end plate 26 installed in the top area of ​​the first-floor concrete-encased circular steel tube concrete-encased special-shaped column 2 by welding, with the welding range being parallel to the wall limb;

[0087] S5, cast-in-place concrete 30, the pouring range is the fixed circular steel tube 11 below the second-story column top of the outer concrete-wrapped circular steel tube concrete-filled special-shaped column 2, and the upper and lower columns are connected by the column-to-column connector 16 and the welded L-shaped end plate 24, T-shaped end plate 25 and cross-shaped end plate 26;

[0088] S6, align and assemble the extended cover plates 15 and extended clamping plates 19 installed on the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns 21, the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns 22, and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns 23 with the H-shaped steel beam 3, and connect the beams and columns with high-strength bolts 18;

[0089] S7, connect the outer concrete-encased circular steel tube concrete-reinforced buckling restrained shear wall 7 and the H-shaped steel beam 3 by welding, and then pour concrete 30, the pouring range of which is the post-cast strip set in the outer concrete-encased circular steel tube concrete-reinforced buckling restrained shear wall 7;

[0090] S8, connecting the steel truss floor deck 6 and the H-shaped steel beam 3 by welding the studs 29, and casting concrete 30 on the steel truss floor deck 6 to obtain a cast-in-place floor layer.

[0091] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0092] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-rise assembled frame buckling-resistance shear wall structure system with concrete-clad special-shaped columns, characterized by: include: An underground part, the underground part comprising a raft foundation (1), basement beams (8), basement retaining walls (9) and a basement top plate (10), wherein the raft foundation (1), basement beams (8), basement retaining walls (9) and basement top plate (10) are all constructed by cast-in-situ concrete (30); The invention relates to a circular concrete-wrapped steel tube concrete-filled special-shaped column (2). The circular concrete-wrapped steel tube concrete-filled special-shaped column (2) comprises a plurality of special-shaped columns, namely an L-shaped circular concrete-wrapped steel tube concrete-filled special-shaped column corner column (21), a T-shaped circular concrete-wrapped steel tube concrete-filled special-shaped column side column (22), and a cross-shaped circular concrete-wrapped steel tube concrete-filled special-shaped column center column (23). The circular concrete-wrapped steel tube concrete-filled special-shaped column (2) is composed of a fixed circular steel tube (11), longitudinal steel bars (12) arranged on the outside of the circular steel tube, stirrups (13), prefabricated thin concrete (31) and concrete inside the steel tube. The concrete inside the fixed circular steel tube (11) in each of the circular concrete-wrapped steel tube concrete-filled special-shaped columns (2) is cast-in-situ concrete (30). The corner column ( 21), the column bottoms of the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns (22) and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column (23) are all welded and fixed to the connecting steel plate (20), and the column foot portion of each of the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns (21), the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns (22) and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column (23) is provided with cast-in-situ concrete (30), and the node partition plate (14), the extended cover plate (15), the extended splint (19) and the L-shaped end plate (24), the T-shaped end plate (25) and the cross-shaped end plate (26) are welded into a whole during factory prefabrication and installed in the beam-column connection node (5) area of ​​the concrete-encased circular steel tube concrete-filled special-shaped column (2); An H-shaped steel beam (3), wherein the upper flange, the lower flange and the web of the H-shaped steel beam (3) are all provided with bolt holes; A column-to-column connection node (4), comprising an L-shaped end plate (24), a T-shaped end plate (25), a cross-shaped end plate (26), and a column-to-column connection piece (16) installed at the top of the lower column and the bottom of the upper column of each L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column (21), a T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column (22), and a cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column middle column (23), wherein the column-to-column connection piece (16) is composed of a stamped arc plate (17) and a steel bar (12); A beam-column connection node (5), the beam-column connection node (5) comprising an extended cover plate (15), high-strength bolts (18) and an extended clamping plate (19) installed on each of the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns (21), the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns (22) and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns (23), wherein the extended cover plate (15) and the extended clamping plate (19) are both provided with bolt holes; A steel truss floor deck (6), the steel truss floor deck (6) comprising a galvanized steel plate (27), a fixed steel truss (28), bolts (29) and cast-in-place concrete (30), the steel truss floor deck (6) using the galvanized steel plate (27) as a supporting platform; A concrete-encased circular steel tube concrete-reinforced buckling-resistance shear wall (7) comprising a fixed circular steel tube (11), steel bars (12) and prefabricated concrete-encased thin concrete (31).

2. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: The concrete-encased circular steel tube concrete-filled special-shaped columns (2), H-shaped steel beams (3), steel truss floor decks (6) and concrete-encased circular steel tube concrete-filled anti-buckling shear walls (7) are all prefabricated in a factory except for the cast-in-situ concrete (30).

3. The high-rise assembled frame buckling-resistance shear wall structure system with concrete-clad special-shaped columns according to claim 1 is characterized by: The stirrups (13) and steel bars (12) of the concrete-encased circular steel tube concrete-filled special-shaped column (2) are arranged so as not to pass through the L-shaped end plate (24), the T-shaped end plate (25) and the cross-shaped end plate (26).

4. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: The protective layers of the concrete-encased circular steel tube concrete-filled special-shaped columns (2), including L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner columns (21), T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side columns (22), and cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center columns (23), are less than the protective layer thickness requirement of the composite structure design code JGJ138-2016, but meet the structural stress requirements.

5. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: The arrangement of the fixed circular steel tube concrete-encased special-shaped columns (2) and the concrete-encased circular steel tube concrete-encased buckling-resistance shear wall (7) can be expanded in the wall limb direction.

6. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: The L-shaped end plate (24), the T-shaped end plate (25) and the cross-shaped end plate (26) are all provided with a circular hole slightly larger than the diameter of the fixed circular steel pipe (11).

7. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: The outwardly extending cover plate (15) of the beam-column connection node (5) performs temporary support and positioning functions during assembly, thereby facilitating the construction of the beam-column node.

8. The high-rise assembled frame buckling-resistance shear wall structure system with concrete-clad special-shaped columns according to claim 1 is characterized by: The concrete-encased circular steel tube concrete-filled special-shaped columns (2) can be optionally arranged through-through.

9. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1 is characterized by: A node partition plate (14) is arranged between the L-shaped end plate (24), the T-shaped end plate (25) and the cross-shaped end plate (26) in the column-to-column connection node (4).

10. The high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete-clad special-shaped columns according to claim 1, characterized in that: The basement top plate (10) can be a composite plate, and the basement beam (8) can be a precast concrete beam.

11. The method for assembling a high-rise assembled frame buckling-resistance shear wall structure system with exterior concrete special-shaped columns according to any one of claims 1 to 10, characterized in that: The following steps are involved: S1, prefabricate concrete-encased circular steel tube concrete-encased special-shaped columns (2), H-shaped steel beams (3), reinforced steel truss floor decks (6) and concrete-encased circular steel tube concrete-encased buckling-resistance shear walls (7) in a factory and transport them to the site; S2, carry out underground structure construction, hoist the concrete-encased circular steel tube concrete-filled special-shaped column (2) to the designated location, and then use cast-in-place concrete (30) to cast the entire structure. The casting range includes the raft foundation (1), basement beams (8), basement retaining walls (9), basement top slabs (10), and the concrete of the post-cast zone at the base of the concrete-encased circular steel tube concrete-filled special-shaped column (2); S3, after the construction of the basement is completed, the steel bars (12) of the column-to-column connector (16) are first welded to the inner column top area of ​​the fixed round steel tube (11) of the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column (2), and then concrete (30) is poured, the pouring range of which is the inner part of the fixed round steel tube (11) below the first-floor column top of the concrete-encased circular steel tube concrete-filled special-shaped column (2), so as to realize the connection between the column-to-column connector (16) and the first-floor column of the concrete-encased circular steel tube concrete-filled special-shaped column (2); S4, connecting the L-shaped end plate (24), T-shaped end plate (25) and cross-shaped end plate (26) installed at the column bottom area of ​​the second-floor concrete-encased circular steel tube concrete-encased special-shaped column (2) and the L-shaped end plate (24), T-shaped end plate (25) and cross-shaped end plate (26) installed at the column top area of ​​the first-floor concrete-encased circular steel tube concrete-encased special-shaped column (2) by welding, with the welding range being the side parallel to the wall limb; S5, cast-in-place concrete (30), the pouring range is the interior of the fixed circular steel tube (11) below the second-story column top of the outer concrete-wrapped circular steel tube concrete special-shaped column (2), and the upper and lower columns are connected together by the column-to-column connector (16) and the welded L-shaped end plate (24), T-shaped end plate (25) and cross-shaped end plate (26); S6, aligning and assembling the extended cover plate (15) and the extended clamp plate (19) installed on the L-shaped concrete-encased circular steel tube concrete-filled special-shaped column corner column (21), the T-shaped concrete-encased circular steel tube concrete-filled special-shaped column side column (22), and the cross-shaped concrete-encased circular steel tube concrete-filled special-shaped column center column (23) with the H-shaped steel beam (3), and realizing the connection between the beams and columns by high-strength bolts (18); S7, connecting the outer concrete-encased circular steel tube concrete-reinforced anti-buckling shear wall (7) and the H-shaped steel beam (3) by welding, and then pouring concrete (30), the pouring range of which is the post-cast strip set in the outer concrete-encased circular steel tube concrete-reinforced anti-buckling shear wall (7); S8, connecting the steel truss floor deck (6) and the H-shaped steel beam (3) by welding bolts (29), and casting concrete (30) on the steel truss floor deck (6) to obtain a cast-in-place floor layer.

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