Super high-rise frame-core tube building structure

Abstract

The utility model relates to the technical field of super high-rise building structures, and discloses a super high-rise frame-core tube building structure which comprises an upper frame-core tube, a high-position conversion structure and a lower frame-core tube, and the two ends of the core tube are connected with the upper frame-core tube and the lower frame-core tube respectively. The concrete filled steel tubular columns are located on the periphery of the core tube, the upper ends of the concrete filled steel tubular columns are connected with the upper end of the core tube through the floor concrete beams, the concrete floor system is laid on the tops of the floor concrete beams, and the upper ends of the transfer truss web members are obliquely connected with the lower end of the upper frame-core tube. The lower end of the transfer truss web member is obliquely connected with the lower end of the concrete filled steel tubular column, and the two ends of the concrete filled steel tubular column are connected with the upper frame-core tube and the lower frame-core tube respectively. The high clear height of a building is obtained to the maximum extent, and meanwhile the structural dead weight is reduced as much as possible; and the high pursuit of light, simple and wide space structure of architects is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of super high-rise building structure, especially to a super high-rise frame-core tube building structure. BACKGROUND

[0002] In the past ten years, with the rapid development of social economy and the economic integration of Guangdong, Hong Kong and Macao, the traditional frame-core tube structure system has been unable to meet the owners' demand for building space and use, and seeking a new outer frame form to maximize the building space has been one of the hot issues in recent years.

[0003] The common super high-rise structure form at present is frame-core tube structure, and there are various scheme selection types for the structure arrangement of the area outside the super high-rise core tube, mainly including: solid flat slab floor scheme, reinforced concrete beam slab scheme, steel beam + concrete floor slab composite floor, reinforced concrete ribbed floor, etc. Under the limitation of building conditions, under the condition of limited floor height, a higher net height effect is required, and if the general conventional beam slab type structure arrangement scheme is adopted, the higher net height requirement of the building cannot be met; and if the solid flat slab floor scheme is adopted, the structure is not conducive to the structure due to the large thickness of the slab and the large self weight of the structure. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the defects of the prior art and provides a super high-rise frame-core tube building structure.

[0005] The utility model discloses a super high-rise frame-core tube building structure which comprises an upper frame-core tube, a high-position conversion structure and a lower frame-core tube, the high-position conversion structure comprises a core tube, a steel pipe concrete column, a conversion truss web member, a floor concrete beam and a concrete floor, the two ends of the core tube are connected with the upper frame-core tube and the lower frame-core tube respectively, the steel pipe concrete column is located at the outer periphery of the core tube, the upper end of the steel pipe concrete column is connected with the upper end of the core tube through the floor concrete beam, the concrete floor is laid on the top of the floor concrete beam, the upper end of the conversion truss web member is connected with the lower end of the upper frame-core tube in an inclined mode, the lower end of the conversion truss web member is connected with the lower end of the steel pipe concrete column in an inclined mode, and the two ends of the steel pipe concrete column are connected with the upper frame-core tube and the lower frame-core tube respectively.

[0006] More preferably, the upper frame-core tube comprises a core tube, a concrete column, an outer frame concrete beam, a hollow flat floor hidden beam, a hollow floor and an upper underpinning structure column, the core tube is connected with the core tube of the high-level transfer structure, the concrete column is arranged at the outer periphery of the core tube, the concrete column is connected with the core tube through the hollow flat floor hidden beam, the lower end of the concrete column is connected with the upper end of the concrete-filled steel tube column to form a connecting node, the upper ends of two adjacent concrete-filled steel tube columns are connected through the outer frame concrete beam, the outer frame concrete beam, the hollow flat floor hidden beam and the core tube form a hollow floor mounting frame, the hollow floor is mounted in the hollow floor mounting frame, the upper end of the transfer truss web member is connected with the outer frame concrete beam to form a supporting connecting part, and the lower end of the upper underpinning structure column is connected with the supporting connecting part.

[0007] More preferably, the connecting node comprises column longitudinal reinforcement, column densification stirrups, additional reinforcement, beam reinforcement, an inner liner pipe, an outer pipe and a first concrete layer, the column densification stirrups, the additional reinforcement and the beam reinforcement are sequentially connected with the column longitudinal reinforcement, the end of the column longitudinal reinforcement is welded with the outer wall of the outer pipe, the inner liner pipe is welded to the inner wall of the outer pipe, and the first concrete layer covers the column longitudinal reinforcement, the column densification stirrups, the additional reinforcement, the beam reinforcement, the outer pipe and the inner liner pipe.

[0008] More preferably, the hollow floor comprises first plate surface reinforcement, a first core mold, first tension reinforcement, first plate bottom reinforcement and a second concrete layer, the first plate surface reinforcement and the first plate bottom reinforcement are arranged at two ends of the first core mold respectively, the first plate surface reinforcement is connected with the first plate bottom reinforcement through the first tension reinforcement, the bottom of the first core mold is provided with a first water and air drainage hole, and the first plate surface reinforcement, the first core mold, the first tension reinforcement and the first plate bottom reinforcement are covered by the second concrete layer.

[0009] More preferably, the lower frame-core tube comprises a floor steel beam, a composite floor, a concrete-filled steel tube column, an outer frame steel beam and a core tube, the upper end of the concrete-filled steel tube column is connected with the lower end of the concrete-filled steel tube column of the high-level transfer structure, two adjacent concrete-filled steel tube columns are connected through the outer frame steel beam, the concrete-filled steel tube column is connected with the core tube through the floor steel beam, the composite floor is laid on the floor steel beam, and the outer frame steel beam, the core tube and the floor steel beam form a composite floor mounting frame, and the composite floor is mounted in the composite floor mounting frame.

[0010] More preferably, the width of the core tube is not less than 1 / 15 of the structural height.

[0011] More preferably, the horizontal and vertical distribution reinforcement ratio of the core tube is greater than or equal to 0.6%.

[0012] More preferably, the cross section of the transfer truss web member is a box structure.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] The utility model discloses a high position conversion layer structure of a super high-rise frame-core tube building structure, which can change the classic super high-rise frame-core tube building structure from the lower part to the upper part according to the building function requirement, fully utilize the high position conversion layer structure for transition, ensure the effective transmission of vertical load transmission, fully utilize the material characteristics, have higher bearing capacity and good economic effect; the super high-rise refuge layer is ingeniously utilized to set the high position conversion structure, and the column needed to be increased and set is converted locally, and the hollow flat slab floor is adopted between the outer frame and the core tube, the open space without beam and column is formed, the requirement of flexible arrangement of subsequent use of the building function is met, the higher net height of the building is obtained to the maximum, and the structure self weight is reduced as much as possible; the light, simple and open space structure of the architect is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a high position conversion layer structure of a super high-rise frame-core tube building structure of the utility model;

[0016] Figure 2 It is a plane schematic view of the office layer of the super high-rise frame-core tube building structure of the utility model;

[0017] Figure 3 It is a plane schematic view of the refuge layer of the super high-rise frame-core tube building structure of the utility model;

[0018] Figure 4 It is a plane schematic view of the conversion layer of the super high-rise frame-core tube building structure of the utility model;

[0019] Figure 5 It is a plane schematic view of the matched layer of the super high-rise frame-core tube building structure of the utility model;

[0020] Figure 6 It is Figure 3 Or Figure 4 The sectional view at A;

[0021] Figure 7 It is Figure 3 Or Figure 4 The sectional view at B;

[0022] Figure 8 It is Figure 6 Or Figure 7 The sectional view at C;

[0023] Figure 9 It is a hollow floor of the super high-rise frame-core tube building structure of the utility model;

[0024] Figure 10is a schematic view of a connecting joint of a super high-rise frame-core tube building structure of the utility model;

[0025] Figure 11 is a schematic view of a connecting joint of a super high-rise frame-core tube building structure of the utility model;

[0026] Figure 12 is a schematic view of a connecting joint of a super high-rise frame-core tube building structure of the utility model;

[0027] Markings of components in the drawing: 1-core tube; 2-steel pipe concrete column; 201-inner lining pipe; 202-outer pipe; 3-outer frame steel beam; 4-floor steel beam; 5-combined floor; 501-shear bolt; 502-concrete floor; 6-concrete column; 601-column longitudinal reinforcement; 602-column densification stirrup; 603-additional reinforcement; 7-outer frame concrete beam; 701-H-shaped steel skeleton; 702-bolt; 703-beam body; 704-beam reinforcement; 8-floor concrete beam; 9-concrete floor; 10-upper underpinning structure column; 11-hollow flat slab floor concealed beam; 12-hollow floor; 1201-first plate surface reinforcement; 1202-first core mold; 1203-first tension reinforcement; 1204-first plate bottom reinforcement; 1205-first water and air release hole; 1206-second concrete layer; 13-connecting joint; 14-conversion truss web member; 15-connection of steel reinforcement and steel pipe wall. DETAILED DESCRIPTION

[0028] The utility model's practical purpose is described in further detail below in combination with the drawings and specific embodiments, and the embodiments cannot be described one by one here, but the utility model's implementation mode is not limited to the following embodiments.

[0029] As Figure 1 , 3, 4, 6 and 7, an ultra-high-rise frame-core tube building structure comprises upper frame-core tube, high-level transfer structure and lower frame-core tube connected in sequence; the upper frame-core tube comprises core tube 1, concrete column 6, outer frame concrete beam 7, hollow flat slab floor hidden beam 11, hollow floor 12 and upper underpinning structure column 10; the high-level transfer structure comprises core tube 1, steel pipe concrete column 2, transfer truss web member 14, floor concrete beam 8 and concrete floor 9, the cross section of the transfer truss web member 14 is box-shaped structure; the lower frame-core tube comprises core tube 1, floor steel beam 4, steel pipe concrete column 2, outer frame steel beam 3 and composite floor 5. The steel pipe concrete column 2 is arranged at the outer periphery of the core tube 1. The upper end of the core tube 1 of the high-level transfer structure is connected with the lower end of the core tube 1 of the upper frame-core tube. The lower end of the core tube 1 of the high-level transfer structure is connected with the upper end of the core tube 1 of the lower frame-core tube. The upper end of the steel pipe concrete column 2 is connected with the upper end side of the core tube 1 through the floor concrete beam 8. The concrete floor 9 is laid on the top of all the floor concrete beams 8. The floor thickness of the concrete floor 9 is greater than 120 mm, preferably double-layer and bidirectional reinforcement, and the reinforcement ratio of each layer and each direction is preferably not less than 0.25%. The lower end of the concrete column 6 is connected with the upper end of the steel pipe concrete column 2 to form a connecting joint 13. The upper end side of the two adjacent steel pipe concrete columns 2 is connected through the outer frame concrete beam 7. The lower end side of the two adjacent steel pipe concrete columns 2 is connected through the outer frame steel beam 3. The lower end of the steel pipe concrete column 2 of the high-level transfer structure is connected with the top of the steel pipe concrete column 2 of the lower frame-core tube. The lower end side of the core tube 1 of the high-level transfer structure is connected with the lower end side of the steel pipe concrete column 2 through the floor steel beam 4 and the steel pipe concrete column 2 of the lower frame-core tube. All the composite floors 5 are laid on the top of the floor steel beams 4. The transfer truss web member 14 is arranged in an inclined manner, the upper end of the transfer truss web member 14 is connected with the outer frame concrete beam 7 to form a supporting connecting part, and the lower end of the transfer truss web member 14 is connected with the steel pipe concrete column 2. According to design requirements, the lower end of the upper underpinning structure column 10 can be connected with the top of the supporting connecting part. The outer frame steel beam 3, the steel pipe concrete column 2 and the outer frame concrete beam 7 form a composite floor mounting frame, and the composite floor 5 is mounted on the composite floor mounting frame.

[0030] The high-level transfer structure is used for increasing the support of the upper underpinning structure column 10 and the refuge (i.e. refuge layer), and completing the transformation from the lower frame-core tube to the upper frame-core tube. The lower frame-core tube is used for office (i.e. office layer). The upper frame-core tube is used as high-end matching (i.e. matching layer).

[0031] As Figure 10As shown, each connecting node 13 comprises column longitudinal reinforcement 601, column encryption stirrup 602, additional reinforcement 603, beam reinforcement 704, inner lining tube 201, outer tube 202 and first concrete layer. Column longitudinal reinforcement 601, column encryption stirrup 602 and additional reinforcement 603 are part of concrete column 6. Beam reinforcement 704 is part of outer frame concrete beam 7. Inner lining tube 201 and outer tube 202 are part of concrete-filled steel tube column 2. Column encryption stirrup 602, additional reinforcement 603 and beam reinforcement 704 are connected to column longitudinal reinforcement 601 from top to bottom, and the end of column longitudinal reinforcement 601 is welded to the outer wall of outer tube 202. Inner lining tube 201 is welded to the inner wall of outer tube 202. The first concrete layer covers column longitudinal reinforcement 601, column encryption stirrup 602, additional reinforcement 603, beam reinforcement 704, outer tube 202 and inner lining tube 201.

[0032] As shown, Figure 2 The lower frame-core tube is a multi-story office layer, and the multi-story office layer is stacked from bottom to top. Each office layer comprises core tube 1, concrete-filled steel tube column 2, outer frame steel beam 3, floor steel beam 4 and composite floor 5. The upper end of concrete-filled steel tube column 2 is connected to the lower end of concrete-filled steel tube column 2 of the high-level transfer structure, and the top of core tube 1 of the office layer is connected to the bottom of core tube 1 of the high-level transfer structure. Concrete-filled steel tube column 2 is located at the outer periphery of core tube 1, and the lower end side of concrete-filled steel tube column 2 is connected to the lower end side of core tube 1 through floor steel beam 4. Composite floor 5 is laid on the top of floor steel beam 4.

[0033] As shown, Figure 5 The upper frame-core tube is a multi-story supporting layer, and the multi-story supporting layer is stacked from bottom to top. Each supporting layer comprises core tube 1, concrete column 6, outer frame concrete beam 7, floor concrete beam 8, hollow slab floor hidden beam 11 and hollow floor 12. The bottom of core tube 1 of the supporting layer is connected to the top of core tube 1 of the high-level transfer structure. Concrete column 6 is located at the outer periphery of core tube 1. The lower end side of concrete column 6 of the supporting layer is connected to the bottom side of core tube 1 of the supporting layer through hollow slab floor hidden beam 11, and outer frame concrete beam 7, hollow slab floor hidden beam 11 and core tube 1 form a hollow floor installation frame, and hollow floor is installed in the hollow floor installation frame. The lower end of concrete column 6 of the supporting layer is connected to the upper end of concrete-filled steel tube column 2 of the high-level transfer structure, and the lower end of upper frame-core tube upper underpinning structure column 10 is connected to outer frame concrete beam 7 of the high-level transfer structure. In order to improve the ductility of concrete column 6, the stirrup is fully encrypted, and the control volume stirrup ratio is not less than 1.5%.

[0034] The core tube 1 is used to bear part of the gravity load and most of the horizontal load. The core tube 1 must have sufficient lateral stiffness, bearing capacity, deformation capacity and ductility. In the embodiment, the distribution bar reinforcement ratio of the wall of the core tube 1 and the configuration requirement of the tensile reinforcement are improved. The horizontal and vertical distribution bar reinforcement ratio of the core tube 1 at the bottom reinforcing position of the core tube 1 is not less than 0.6%, and the distribution bar reinforcement ratio of the hidden column is increased to 1.6%. The horizontal and vertical distribution bar reinforcement ratio of the shear wall at other positions of the core tube 1 is not less than 0.4%.

[0035] As shown in Figure 9 The hollow floor slab 12 is provided with a first slab surface bar 1201, a first core mold 1202, a first tensile reinforcement 1203, a first slab bottom bar 1204 and a second concrete layer. The first slab surface bar 1201 and the first slab bottom bar 1204 are respectively arranged at the upper and lower ends of the first core mold 1202. The first slab surface bar 1201 is connected with the first slab bottom bar 1204 through the first tensile reinforcement 1203. The bottom of the first core mold 1202 is provided with a first water and air drainage hole 1205. The first slab surface bar 1201, the first core mold 1202, the first tensile reinforcement 1203 and the first slab bottom bar are all covered by the second concrete layer.

[0036] The building structure in the embodiment is a high-position transfer structure and a lower frame-core tube (i.e. an office layer) below the 42nd floor, and has a total height of 193.5 meters, which is composed of the steel pipe concrete columns 2, the outer frame steel beams 3, the floor steel beams 4, the composite floor slab 5 and the core tube 1. The high-position transfer structure is arranged at the 41st floor refuge layer to transfer the upper transfer structure column 10 of the upper frame-core tube. The 42nd floor and above (i.e. a supporting layer) has a height of 39 meters, which is composed of the concrete columns 6, the outer frame concrete beams 7, the upper transfer structure column 10, the hollow flat slab floor slab hidden beam 11, the hollow floor slab 12 and the core tube 1. The horizontal force and the overturning moment generated thereby are borne by the core tube 1 and the concrete columns 6. According to the building function requirement, the lower part of the tower below the 41st floor (i.e. the office layer) has a main floor height of 4.5 meters, and the main function is office. The upper part of the tower above the 42nd floor (i.e. the supporting layer) has a floor height of 3.9 meters, and the main function is high-end supporting. The upper floor height changes and the use function requirement changes. The building structure in the embodiment locally transfers the column required to be increased by setting the upper high-end supporting through the setting of the high-position transfer structure, and adopts the hollow flat slab floor slab between the outer frame and the core tube 1 to form an open space without beams and columns, so as to meet the requirement of flexible arrangement of the building function subsequent use, maximize the net height of the building, and minimize the self weight of the structure. The building structure in the embodiment solves the problems that the building function of the existing frame-core tube structure changes from the lower part to the upper part, the requirement for the building space is high, the high net height needs to be obtained, and the flexible use space needs to be obtained.

[0037] The utility model provides a kind of super high-rise frame-core tube building structure innovative system, the key point 1) of the system setting will classic super high-rise frame-core tube building structure changes according to building function demand from lower portion to upper portion, makes full use of high-position conversion layer structure transition, ensure vertical load force transmission effective transmission, make full use of material characteristics, with higher bearing capacity and good economic effect;2) the system cleverly uses super high-rise refuge layer by setting high-position conversion structure local conversion upper high-end supporting need to increase the column set, while hollow slab floor is used between outer frame and core tube, form beamless columnless open use space, meet the requirement that building function subsequent use flexible arrangement, maximum limit obtain building higher net height, while try to reduce structure deadweight.The light, simple, open high pursuit of space structure of architect is realized.

[0038] The technical effect of the building structure in the embodiment is as follows:

[0039] To achieve the seismic design goal of "no damage under small earthquake, repairable under medium earthquake and no collapse under large earthquake", and improve the seismic safety of the structure, the lateral force resisting structure of the building structure is performance-based designed, and according to the Technical Specification for High-Rise Concrete Structures (DBJ / T 15-92-2021) of Guangdong Province, the seismic performance target is set to C level, and the performance level under each earthquake action and the performance target of the structural member are shown in Table 1.

[0040] Table 1: C-level seismic performance level of structural member

[0041]

[0042]

[0043] In the calculation of the medium earthquake stage and the large earthquake stage, only the combination of vertical load and seismic action is considered, and the combination of seismic action and wind load is not considered. The equivalent elastic method is used for the calculation of internal force in the medium earthquake stage, and the equivalent elastic method and the elastic-plastic dynamic time-history analysis method are used for the calculation of internal force in the large earthquake stage.

[0044] The above specific embodiment is the preferred embodiment of the utility model, and cannot limit the utility model, and any change or other equivalent replacement mode without departing from the technical scheme of the utility model is included in the protection scope of the utility model.

Claims

1. A super high-rise frame-core tube building structure, characterized in that: It includes an upper frame-core tube, a high-level transfer structure, and a lower frame-core tube. The high-level transfer structure includes a core tube, steel-concrete composite columns, transfer truss web members, floor concrete beams, and a concrete floor slab. The two ends of the core tube are connected to the upper frame-core tube and the lower frame-core tube, respectively. The steel-concrete composite columns are located on the outer periphery of the core tube. The upper ends of the steel-concrete composite columns are connected to the upper ends of the core tube through the floor concrete beams. The concrete floor slab is laid on top of the floor concrete beams. The upper ends of the transfer truss web members are inclinedly connected to the lower ends of the upper frame-core tube, and the lower ends of the transfer truss web members are inclinedly connected to the lower ends of the steel-concrete composite columns. The two ends of the steel-concrete composite columns are connected to the upper frame-core tube and the lower frame-core tube, respectively. The width of the core tube should not be less than 1 / 15 of the structural height. The horizontal and vertical reinforcement ratios of the core tube are ≥0.6%.

2. The super high-rise frame-core tube building structure according to claim 1, characterized in that: The superstructure-core tube includes the core tube, concrete columns, outer frame concrete beams, hollow flat slab floor slab hidden beams, hollow floor slabs, and superstructure support columns. The core tube is connected to the core tube of the high-level transfer structure. Concrete columns are set on the outer periphery of the core tube and are connected to the core tube through the hollow flat slab floor slab hidden beams. The lower end of the concrete column is connected to the upper end of the steel pipe concrete column to form a connection node. The upper ends of two adjacent steel pipe concrete columns are connected through the outer frame concrete beams. The outer frame concrete beams, hollow flat slab floor slab hidden beams, and core tube form a hollow floor slab installation frame. The hollow floor slab is installed on the hollow floor slab installation frame. The upper end of the transfer truss web members is connected to the outer frame concrete beams to form a support connection. The lower end of the superstructure support column is connected to the support connection.

3. The super high-rise frame-core tube building structure according to claim 2, characterized in that: The connection node includes column longitudinal reinforcement, column stirrups, additional reinforcement, beam reinforcement, inner lining tube, outer tube, and first concrete layer. The column stirrups, additional reinforcement, and beam reinforcement are connected to the column longitudinal reinforcement in sequence. The ends of the column longitudinal reinforcement are welded to the outer wall of the outer tube. The inner lining tube is welded to the inner wall of the outer tube. The first concrete layer covers the column longitudinal reinforcement, column stirrups, additional reinforcement, beam reinforcement, outer tube, and inner lining tube.

4. The super high-rise frame-core tube building structure according to claim 2, characterized in that: The hollow floor slab includes a first slab top reinforcement, a first core mold, a first tie bar, a first slab bottom reinforcement, and a second concrete layer. The first slab top reinforcement and the first slab bottom reinforcement are respectively set at both ends of the first core mold. The first slab top reinforcement is connected to the first slab bottom reinforcement through the first tie bar (1203). The bottom of the first core mold is provided with a first drainage and air vent. The first slab top reinforcement, the first core mold, the first tie bar, and the first slab bottom reinforcement are all covered by the second concrete layer.

5. A super high-rise frame-core tube building structure according to claim 1, characterized in that: The lower frame-core tube includes floor steel beams, composite floor slabs, steel-concrete composite columns, outer frame steel beams, and the core tube. The upper end of the steel-concrete composite columns is connected to the lower end of the steel-concrete composite columns in the high-level transfer structure. Adjacent steel-concrete composite columns are connected by outer frame steel beams. The steel-concrete composite columns are connected to the core tube through floor steel beams. The composite floor slab is laid on the floor steel beams. The outer frame steel beams, the core tube, and the floor steel beams form a composite floor slab installation frame, and the composite floor slab is installed on the composite floor slab installation frame.

6. A super high-rise frame-core tube building structure according to claim 1, characterized in that: The cross-section of the web members of the conversion truss is a box-shaped structure.

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