Large-column-distance corner-column-free frame-core tube super high-rise building structure

Abstract

The utility model discloses a large-column-distance corner-column-free frame-core tube super high-rise building structure. The large-column-distance corner-column-free frame-core tube super high-rise building structure comprises an outer frame, a core tube and a floor system structure. The outer frame comprises a large-span frame beam, a long cantilever beam and a plurality of outer frame columns; the large-span frame beam and the long cantilever beam are rigidly connected with the outer frame column respectively to form a continuous beam; the radiation secondary beams of the floor system structure are hinged to the core tube and are rigidly connected or hinged to the large-span frame beams, the long cantilever beams and the outer frame columns according to stress requirements. The vertical load is firstly transmitted to the core tube and the large-span frame beams and the long cantilever beams of the outer frame through the floor system structure, and then is transmitted to the outer frame columns through the large-span frame beams and the long cantilever beams; the outer frame columns are only provided with a small number of side columns and have no corner columns; the large-span frame beam can be only one span; the number of the outer frame columns is small, stress is more reasonable, large vertical axial force is mainly borne, the bottom is not prone to being pulled, beam column connecting joints are reduced, steel is saved, the construction efficiency is improved, and the building view is wide.

Description

Technical Field

[0001] The utility model relates to the field of super high-rise building structures, in particular to a large-column-spacing, corner-column-free frame-core tube super high-rise building structure. Background Art

[0002] The current conventional frame-core tube structure usually has a rectangular (square) or circular building plan. The frame columns are evenly arranged along the perimeter of the building, frame columns are set at the corners, frame beams are arranged along the frame columns, the outer frame is complete, the span of the frame beams is generally 8 to 12 meters, there are columns at the corners, and there are no long cantilever beams.

[0003] The conventionally arranged frame-core tube structure system can no longer meet the ultimate pursuit of architectural space by architects and owners, and has the following disadvantages: 1) The frame columns are arranged along the perimeter of the building, and the number of frame columns is relatively large. The architectural style is slightly dull and heavy, which does not meet the high space requirements of architects and owners; 2) Frame columns are set at the corners, and the field of vision is blocked; 3) The number of frame columns is relatively large, and the corresponding beam-column nodes are large. If steel structure or hybrid structure is adopted, the beam-column node structure is complex, there are many partitions or linings, and a lot of welding work is required. The on-site welding and weld detection work is large, and the construction speed is relatively slow. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and deficiencies of the prior art and provide a large-column-spacing, corner-column-free frame-core tube super-high-rise building structure.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A large-column-spacing, corner-column-free frame-core tube super-high-rise building structure comprises an outer frame, a core tube and a floor structure connecting the outer frame and the core tube; the outer frame comprises a large-span frame beam with a span greater than a first preset value, a long cantilever beam with a cantilever length greater than a second preset value, and a plurality of outer frame columns; wherein the large-span frame beam and the long cantilever beam are respectively rigidly connected to the outer frame columns to form a continuous beam; the radial secondary beams of the floor structure are hinged to the core tube, and are rigidly connected or hinged to the large-span frame beam, the long cantilever beam and the outer frame column according to force requirements.

[0007] An outrigger truss is arranged between the outer frame column and the core tube, one end of the outrigger truss is connected to the outer frame column, and the other end is connected to the shear wall of the core tube.

[0008] A ring truss is arranged on the periphery of the outer frame, and the ring truss includes a plurality of trusses arranged between adjacent outer frame columns.

[0009] The outer frame is provided with an outrigger truss and a ring truss at the same time; wherein one end of the outrigger truss is connected to the outer frame column, and the other end is connected to the shear wall of the core tube; the ring truss includes a plurality of trusses arranged between adjacent outer frame columns.

[0010] The cantilever truss comprises a cantilever truss upper chord, a cantilever truss lower chord and a cantilever truss web; wherein the cantilever truss upper chord and the cantilever truss lower chord are arranged in parallel, and one end in the same direction is connected to the outer frame column, and the other end in the same direction is connected to the steel hidden column of the shear wall; the cantilever truss web is arranged between the outer frame column and the steel hidden column of the shear wall.

[0011] The cross sections of the large-span frame beam and the long cantilever beam are variable cross sections.

[0012] The core tube is a reinforced concrete shear wall, a steel tube concrete shear wall or a steel concrete shear wall.

[0013] The outer frame column is a steel tube concrete column or a steel concrete column.

[0014] The long cantilever beam or the large-span frame beam is one of a steel beam, a steel-concrete beam and a steel-frame beam.

[0015] The floor slab is a steel-concrete composite floor slab or a conventional concrete floor slab and is arranged in a horizontal direction.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] 1. The super high-rise building structure of the utility model has only a small number of side columns and no corner columns in the outer frame column. In the limit state, only 8 outer frame columns can be set to form a single-side single-span continuous beam with the large-span frame beam and the long cantilever beam.

[0018] 2. The vertical load of the super high-rise building structure of the utility model is first transmitted to the large-span frame beams and long cantilever beams of the core tube and the outer frame through the floor structure, and then the large-span frame beams and long cantilever beams are transmitted to the outer frame columns. The bending moment of the large-span frame beams and long cantilever beams can be balanced through the reasonable setting of the span, reducing the unbalanced bending moment of the outer frame columns, making the outer frame columns more reasonably stressed, mainly bearing a large vertical axial force, and the bottom is not easily tensile, saving steel.

[0019] 3. The horizontal load of the super high-rise building structure of the utility model is mainly transmitted to the core tube through the floor structure. The number of external frames is small, the rigidity is weak, and the horizontal force borne is small. When the structure height is high and the horizontal force is large, a certain number of outrigger trusses or ring trusses need to be set. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the structural arrangement of the large-column-spacing, corner-column-free frame-core tube super-high-rise building structure described in the utility model.

[0021] Figure 2 The diagram is a schematic diagram of the truss floor structure of a super high-rise building structure with only outrigger trusses.

[0022] Figure 3 for Figure 2 A partial enlarged view of .

[0023] Figure 4 A schematic diagram of the truss floor structure of a super high-rise building structure with only ring trusses.

[0024] The meanings of the reference numerals are as follows:

[0025] 1-core tube, 2-external frame column, 3-large span frame beam, 4-long cantilever beam, 5-radial secondary beam of floor structure, 6-horizontal floor, 7-outrigger truss upper chord, 8-outrigger truss lower chord, 9-outrigger truss web member, 10-steel hidden column of shear wall, 11-ring truss. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0027] like Figure 1 A large-column-spacing, corner-column-free frame-core tube super-high-rise building structure comprises an outer frame, a core tube 1 and a floor structure connecting the outer frame and the core tube 1; the outer frame comprises a large-span frame beam 3 with a span greater than a first preset value, a long cantilever beam 4 with a cantilever length greater than a second preset value, and a plurality of outer frame columns 2; wherein the large-span frame beam 3 and the long cantilever beam 4 are rigidly connected to the outer frame column 2 respectively to form a continuous beam; the radial secondary beam of the floor structure is hinged to the core tube 1, and is rigidly connected or hinged to the large-span frame beam 3, the long cantilever beam 4 and the outer frame column 2 according to the force requirements.

[0028] The first preset value is 18m, the second preset value is 6m, and the outer frame beam is composed of a large-span frame beam 3 with a span greater than 18m and a long cantilever beam 4 with a cantilever length greater than 6m.

[0029] The floor structure includes a floor secondary beam 5 and a horizontal floor 6.

[0030] like Figure 2 and Figure 3A cantilever truss is arranged between the outer frame column 2 and the core tube 1, one end of the cantilever truss is connected to the outer frame column 2, and the other end is connected to the shear wall of the core tube 1. The cantilever truss is a solid beam or truss connecting the core tube 1 and the outer frame column 2, with large rigidity, coordinating the plane rotation angle of the inner tube and the outer column at the reinforcement layer, and increasing the axial force of the outer frame column 2, thereby increasing the anti-overturning moment of the outer frame, increasing the anti-lateral rigidity of the structure, and reducing the lateral displacement.

[0031] Or, if Figure 4 , the outer frame is provided with a ring truss on the periphery, and the ring truss includes a plurality of trusses 11 arranged between adjacent outer frame columns 2. The ring truss can increase the connection between the vertical components (including the outer frame columns 2) on the periphery of the structure, coordinate the deformation of the vertical components, reduce the vertical deformation difference, and make the vertical components evenly stressed. When there is only a ring truss, the core tube 1 generates a rotation angle due to bending deformation, and the upper and lower floors of the ring truss drive the columns connected to the ring truss to generate tensile pressure to resist the overturning moment generated by the horizontal load.

[0032] Alternatively, the outer frame is provided with an outrigger truss and a ring truss at the same time; wherein one end of the outrigger truss is connected to the outer frame column 2, and the other end is connected to the shear wall of the core tube 1; the ring truss includes a plurality of trusses 11 arranged between adjacent outer frame columns 2. When the ring truss is combined with the outrigger truss, the ring truss can disperse the axial force generated by the outrigger to multiple columns, so that more columns bear the axial force together.

[0033] The cantilever truss comprises a cantilever truss upper chord 7, a cantilever truss lower chord 8 and a cantilever truss web 9; wherein the cantilever truss upper chord 7 and the cantilever truss lower chord 8 are arranged in parallel, and the ends in the same direction are connected to the outer frame column 2, and the other ends in the same direction are connected to the steel hidden column 10 of the shear wall; the cantilever truss web 9 is arranged between the outer frame column 2 and the steel hidden column 10 of the shear wall.

[0034] The cross sections of the long-span frame beam 3 and the long cantilever beam 4 are variable cross sections, which can save materials and reduce deadweight.

[0035] The core tube 1 is a reinforced concrete shear wall, a steel tube concrete shear wall or a steel concrete shear wall.

[0036] The outer frame column 2 is a steel tube concrete column or a steel concrete column.

[0037] The long cantilever beam 4 or the long-span frame beam 3 is one of a steel beam, a steel-concrete beam, and a steel-frame beam.

[0038] The floor slab is a steel-concrete composite floor slab or a conventional concrete floor slab and is arranged in a horizontal direction.

[0039] The outer frame columns 2 may consist of only 8 columns at minimum.

[0040] The corners of the outer frame are free of columns.

[0041] The outer frame column 2 bears gravity load and horizontal load at the same time.

[0042] The outer frame column 2 is adjusted to a shear force amplification as a giant column.

[0043] The core tube 1 bears part of the gravity load and all the horizontal loads.

[0044] The floor structure must have sufficient strength and rigidity to transmit horizontal forces.

[0045] The core tube 1 bears all horizontal forces and must have sufficient lateral stiffness, bearing capacity, deformation capacity and ductility.

[0046] The core tube 1 should be arranged at full height, and the width of the core tube 1 should not be less than 1 / 12 of the structure height.

[0047] When the floor structure adopts a concrete floor, the thickness of the concrete floor should not be less than 120 mm, and double-layer bidirectional reinforcement is preferred.

[0048] During construction, it is necessary to improve the distribution reinforcement ratio and tension reinforcement configuration requirements of the core tube 1 wall. The horizontal and vertical distribution reinforcement ratios of the core tube 1 outer wall at the bottom reinforcement part should not be less than 0.5%, and the horizontal and vertical distribution reinforcement ratios of the shear wall in other parts should not be less than 0.3%.

[0049] The calculated length of the outer frame column 2 needs to be back-calculated through buckling analysis.

[0050] The core tube 1 can achieve excellent earthquake resistance through the reasonable arrangement of connecting beams.

[0051] The core tube 1 needs to have a certain ductility, and targeted earthquake-resistant strengthening measures are proposed for the corners of the core tube 1. No holes should be opened near the corners, and steel tube concrete or steel concrete concealed columns can be set at the corners as needed.

[0052] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A large-column-spacing, corner-column-free frame-core tube super-high-rise building structure, characterized by: The invention comprises an outer frame, a core tube (1), and a floor structure connecting the outer frame and the core tube (1); the outer frame comprises a large-span frame beam (3) having a span greater than a first preset value, a long cantilever beam (4) having a cantilever length greater than a second preset value, and a plurality of outer frame columns (2); wherein the large-span frame beam (3) and the long cantilever beam (4) are respectively rigidly connected to the outer frame column (2) to form a continuous beam; the radial secondary beam of the floor structure is hinged to the core tube (1), and is rigidly connected or hinged to the large-span frame beam (3), the long cantilever beam (4), and the outer frame column (2) according to the force requirements.

2. According to claim 1, the large-column-spacing, corner-column-free frame-core tube super-high-rise building structure is characterized by: An outrigger truss is provided between the outer frame column (2) and the core tube (1); one end of the outrigger truss is connected to the outer frame column (2), and the other end is connected to the shear wall of the core tube (1).

3. According to claim 1, the large-column-spacing, corner-column-free frame-core tube super-high-rise building structure is characterized by: A ring truss is arranged on the periphery of the outer frame, and the ring truss comprises a plurality of trusses (11) arranged between adjacent outer frame columns (2).

4. According to claim 1, the large-column-spacing, corner-column-free frame-core tube super-high-rise building structure is characterized by: The outer frame is provided with an outrigger truss and a ring truss; wherein one end of the outrigger truss is connected to the outer frame column (2), and the other end is connected to the shear wall of the core tube (1); and the ring truss includes a plurality of trusses (11) arranged between adjacent outer frame columns (2).

5. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 2 or 4, characterized in that: The cantilever truss comprises a cantilever truss upper chord (7), a cantilever truss lower chord (8) and a cantilever truss web member (9); wherein the cantilever truss upper chord (7) and the cantilever truss lower chord (8) are arranged in parallel, and one end in the same direction is connected to the outer frame column (2), and the other end in the same direction is connected to the steel hidden column (10) of the shear wall; the cantilever truss web member (9) is arranged between the outer frame column (2) and the steel hidden column (10) of the shear wall.

6. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 1 is characterized by: The cross sections of the large-span frame beam (3) and the long cantilever beam (4) are variable cross sections.

7. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 1 is characterized by: The core tube (1) is a reinforced concrete shear wall, a steel tube concrete shear wall or a steel concrete shear wall.

8. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 1 is characterized by: The outer frame column (2) is a steel tube concrete column or a steel concrete column.

9. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 1 is characterized by: The long cantilever beam (4) or the large-span frame beam (3) is one of a steel beam, a steel-concrete beam, and a steel-frame beam.

10. The large-column-spacing, corner-column-free frame-core tube super-high-rise building structure according to claim 1 is characterized in that: The floor slab is a steel-concrete composite floor slab or a conventional concrete floor slab and is arranged in a horizontal direction.

Images