Super high-rise building giant frame bottom floor inclined leg rigid frame support structure and construction method

Abstract

The invention discloses a super high-rise building giant frame bottom layer oblique leg rigid frame support structure, comprising giant frame columns, oblique leg rigid frame support structure, cross support structure, ring belt truss beam and sub-frame structure, wherein the oblique leg rigid frame support structure is arranged between two giant frame columns, the oblique leg rigid frame support structure is composed of two rigid frame oblique leg columns and a rigid frame horizontal beam, the lower ends of the rigid frame oblique leg columns are respectively connected to the two giant frame columns, the upper ends are connected to the rigid frame horizontal beam, the upper ends of the rigid frame oblique leg columns extend upward and are connected to the cross support structure, the upper ends of the cross support structure are connected to the two giant frame columns, the ring belt truss beam is arranged at the upper end of the cross support structure, another cross support structure is connected above the ring belt truss beam, and the ring belt truss beam and the cross support structure are repeatedly and alternately arranged upward. The invention has the advantages of large lateral stiffness and good seismic performance.

Description

Technical Field

[0001] The invention belongs to the technical field of giant frame support structures, and in particular relates to a bottom layer oblique leg rigid frame support structure of a giant frame of a super high-rise building. Background Art

[0002] With the development of super high-rise building structures, super high-rise building structural systems are becoming more and more complex, and the application of giant frame structural systems with inclined supports is becoming more and more extensive.

[0003] In actual projects, the ground floor entrance of giant frame super high-rise buildings often requires a 3-4-storey hollow hall. The entrance of super high-rise buildings is required to be tall, spacious and majestic to ensure that people entering the super high-rise buildings do not feel depressed. How to balance the coordination of the conversion beam of the ground floor hollow hall, the seismic resistance of the inclined support structure and the architectural aesthetics of the ground floor hollow hall door has always troubled designers. The structural engineering community is in urgent need of developing an economical and reasonable bottom floor inclined support structure for giant frame super high-rise buildings.

[0004] The existing bottom hollow hall conversion beams are designed as herringbone supports, which can meet the architectural aesthetic requirements, but the bottom herringbone supports are poorly matched with the upper X cross supports; the existing bottom hollow hall conversion beams are designed as V-shaped supports, which are well matched with the upper X cross supports, but the architectural appearance aesthetic effect is not good and affects the use of the bottom hall. Therefore, designing a giant frame structure suitable for the super high-rise building structural system has become a research direction for those skilled in the art. Summary of the invention

[0005] The present invention aims to provide a super high-rise building giant frame bottom layer inclined leg rigid frame support structure and construction method. The giant frame structure system with inclined support has the advantages of large lateral stiffness and good seismic performance.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a super high-rise building giant frame bottom layer oblique leg rigid frame support structure, including giant frame columns, oblique leg rigid frame support structure, cross support structure, ring belt truss beam and secondary frame structure, the oblique leg rigid frame support structure is arranged between two giant frame columns, the oblique leg rigid frame support structure is composed of two rigid frame oblique leg columns and a rigid frame horizontal beam, the lower ends of the rigid frame oblique leg columns are respectively connected to the two giant frame columns, and the upper ends are connected to the rigid frame horizontal beam, the upper ends of the rigid frame oblique leg columns extend upward and are connected to the cross support structure, the upper end of the cross support structure is connected to the two giant frame columns, the ring belt truss beam is arranged at the upper end of the cross support structure, another cross support structure is connected above the ring belt truss beam, the ring belt truss beam and the cross support structure are repeatedly and alternately arranged upward, and a secondary frame structure is also arranged between the two giant frame columns, and the secondary frame structure is located above the oblique leg rigid frame support structure.

[0007] The technical solution further improved in the above technical solution is as follows:

[0008] 1. In the above scheme, the secondary frame structure includes secondary frame columns and secondary frame beams, a plurality of secondary frame columns are arranged above the rigid frame horizontal beams, and multi-level frame beams are arranged between the secondary frame columns.

[0009] 2. In the above scheme, the horizontal beam of the rigid frame is a variable-section box beam configuration.

[0010] 3. In the above scheme, the two rigid frame oblique leg columns are distributed in an eight-shaped pattern facing each other.

[0011] 4. In the above solution, the cross-support structure is an X-shaped cross-support structure.

[0012] The ground floor entrance of a super high-rise building is required to be tall, spacious and majestic. The ground floor entrance of a giant frame super high-rise building often requires a 3-4-story hollow hall. The inclined-leg rigid-frame gate is an architectural shape that is similar to an arched gate, with a beautiful appearance and elegant appearance.

[0013] The giant frame structure system with inclined braces is essentially a vertical giant truss structure based on its stress characteristics. Its giant frame columns mainly bear vertical loads, giant frame beams bear secondary frame structure loads, giant inclined braces bear horizontal shear forces, and giant frame columns do not bear shear forces. There is no secondary bending moment in the giant frame columns, and no inflection points will be formed.

[0014] Another technical solution adopted by the present invention is: a construction method of a super high-rise building giant frame bottom layer inclined leg rigid frame type support structure, comprising the following steps:

[0015] S1. First construct the foundation of the super high-rise building, then construct the core tube shear wall and giant frame column, and then construct and install the ring belt truss beam to form a giant frame structure;

[0016] S2. Install and construct two slanted leg columns of the rigid frame that face each other in an eight-shaped shape in the giant frame structure. The lower ends of the slanted leg columns of the rigid frame are respectively connected to the left and right giant frame columns. The horizontal beam of the rigid frame with a variable-section box beam structure is cantilevered and assembled to form an inclined leg rigid frame support structure.

[0017] S3, hoisting construction cross support structure, two splayed rigid frame oblique leg columns facing each other extend upward and connect with X-shaped cross support, forming a giant frame structure with oblique support;

[0018] S4. Finally, install the secondary frame columns and secondary frame beams to complete the installation of the secondary frame structure, forming the bottom layer inclined leg rigid frame support structure system of the giant frame super high-rise building.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0020] 1. The oblique-leg rigid frame support structure of the giant frame bottom floor of a super-high-rise building of the present invention has the advantages of large lateral stiffness and good seismic performance. At the same time, the oblique-leg rigid frame support structure of the giant frame bottom floor of the super-high-rise building takes into account the bearing capacity of the conversion beam of the bottom floor hollow hall, the seismic performance of the oblique support structure and the architectural aesthetics of the bottom floor hollow hall door, thereby solving the problem of weak seismic resistance of the bottom floor of the giant frame super-high-rise building. The heavy oblique-leg rigid frame bridge structure holds up the super-high-rise building, making the entrance of the hollow hall of the super-high-rise building particularly magnificent, and has good application prospects.

[0021] 2. The present invention provides a super high-rise building giant frame bottom layer inclined leg rigid frame support structure, wherein the rigid frame legs are inclined columns, which is beneficial to improving its earthquake resistance; the giant beam of the inclined leg rigid frame also serves as a hollow hall conversion beam, bearing the load of the upper secondary frame structure; the two inclined leg columns of the inclined leg rigid frame extend and cross to form an X-cross support, bearing the horizontal shear force, which is beneficial to improving its earthquake resistance; the beautiful inclined leg rigid frame bridge shape can meet the architectural aesthetic requirements of the hollow hall at the bottom, killing two birds with one stone; the two inclined leg columns of the inclined leg rigid frame support structure extend and cross to form an X-cross support, the X-cross support bears the horizontal shear force, and the inclined leg rigid frame support has good matching performance with the upper X-cross support. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 This is a schematic elevation diagram of a super high-rise building's giant frame bottom-level inclined leg rigid frame support structure.

[0023] Attached Figure 2 It is a three-dimensional schematic diagram of a super high-rise building giant frame bottom floor inclined leg rigid frame support structure.

[0024] Attached Figure 3 It is a schematic diagram of the three-dimensional structure of Example 1 of the present invention.

[0025] In the figure: 1. giant frame column; 2. inclined leg rigid frame support structure; 21. rigid frame inclined leg column; 22. rigid frame horizontal beam; 3. cross support structure; 4. ring belt truss beam; 5. sub-frame structure; 51. sub-frame column; 52. sub-frame beam. DETAILED DESCRIPTION

[0026] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] A super high-rise building giant frame bottom layer oblique leg rigid frame support structure, comprising a giant frame column 1, an oblique leg rigid frame support structure 2, a cross support structure 3, a ring belt truss beam 4 and a secondary frame structure 5, wherein the oblique leg rigid frame support structure 2 is arranged between two giant frame columns 1, the oblique leg rigid frame support structure 2 is composed of two rigid frame oblique leg columns 21 and a rigid frame horizontal beam 22, the rigid frame oblique leg columns 21 are distributed in an eight-shaped pattern facing each other, the lower ends of the rigid frame oblique leg columns 21 are respectively connected to the two giant frame columns 1, and the upper ends are connected to the rigid frame horizontal beam 22, the rigid frame horizontal beam 22 is a variable cross-section box beam configuration, and the upper ends of the rigid frame oblique leg columns 21 extend upward and are connected to the cross support structure 3 The cross support structure 3 is an X-shaped cross support structure, the upper end of the cross support structure 3 is connected to two giant frame columns 1, the ring-belt truss beam 4 is arranged at the upper end of the cross support structure 3, and another cross support structure 3 is connected above the ring-belt truss beam 4. The ring-belt truss beam 4 and the cross support structure 3 are repeatedly and alternately arranged upward. A secondary frame structure 5 is also arranged between the two giant frame columns 1, and the secondary frame structure 5 is located above the oblique leg rigid frame support structure 2; the secondary frame structure 5 includes secondary frame columns 51 and secondary frame beams 52, a plurality of secondary frame columns 51 are arranged above the rigid frame horizontal beam 22, and multi-level frame beams 52 are arranged between the secondary frame columns 51.

[0028] The construction method of the super high-rise building giant frame bottom layer inclined leg rigid frame type support structure comprises the following steps:

[0029] S1, first construct the foundation of the super high-rise building, then construct the core tube shear wall and the giant frame column 1, and then construct and install the ring belt truss beam 4 to form a giant frame structure;

[0030] S2, installing and constructing two slanted leg columns 21 of the rigid frame facing each other in an eight-shaped shape in the giant frame structure, the lower ends of the slanted leg columns 21 of the rigid frame are respectively connected to the left and right giant frame columns 1, and the cantilevered rigid frame horizontal beam 22 of the variable cross-section box beam configuration is assembled to form the slanted leg rigid frame support structure 2;

[0031] S3, hoisting and constructing the cross support structure 3, two oppositely facing splayed rigid frame oblique leg columns 2 extend upward and are connected to the X-shaped cross support 3, forming a giant frame structure with oblique supports;

[0032] S4. Finally, the secondary frame columns 51 and the secondary frame beams 52 are installed to complete the installation of the secondary frame structure 5, thereby forming a bottom-level inclined leg rigid frame support structure system of the mega-frame super-high-rise building.

[0033] The present invention is further explained as follows:

[0034] The above-mentioned inclined leg rigid frame support structure 2 is used for the entrance of the ground floor hall of a giant frame super high-rise building, forming a new giant frame structure system with inclined supports. The inclined leg rigid frame support structure 2 of the ground floor of the giant frame of the super high-rise building can take into account the coordination of the conversion beam of the bottom hollow hall, the seismic resistance of the inclined support structure and the architectural art of the bottom hollow hall door. The inclined leg rigid frame support structure 2 can be used for the ground floor hollow hall of the giant frame super high-rise building structure, solving the problem of weak seismic resistance of the bottom floor of the giant frame super high-rise building. The heavy inclined leg rigid frame bridge structure holds up the super high-rise building, making the entrance of the hollow hall of the super high-rise building particularly magnificent, and has good application prospects.

[0035] The two legs of the inclined leg rigid frame supporting structure and the axis of the middle part of the beam are roughly arched. The arched door building is simple and beautiful. The inclined leg rigid frame structure is similar to the arched door building. The inclined leg rigid frame structure is matched with a 3-4-story hollow hall to ensure that people entering the super high-rise building are tall, spacious and imposing without feeling depressed. The heavy inclined leg rigid frame bridge structure holds up the super high-rise building, making the entrance of the hollow hall of the super high-rise building beautiful and distinctive.

[0036] The inclined leg columns 21 of the inclined leg rigid frame support structure 2 are inclined, and the axes of the two legs and the middle of the beam are roughly arched. The bending moment on the legs and the beam is significantly reduced than that of the portal frame with the same span. The giant rigid frame horizontal beam 22 on the upper part of the inclined leg columns 21 also serves as the hollow hall conversion beam, bearing the load of the upper secondary frame structure 5. The heavy inclined leg rigid frame support structure 2 holds up the super high-rise building, and the vertical force of the inclined leg rigid frame support structure 2 is very reasonable.

[0037] Under the huge load of the upper sub-frame structure 5 and the arch effect of the diagonal leg columns 21 of the rigid frame, the axial pressure of the diagonal leg structure 2 increases. The horizontal component of the axial pressure of the diagonal leg structure is very helpful in resisting the horizontal load force of the earthquake.

[0038] The two inclined leg columns 21 of the inclined leg rigid frame support structure 2 are arranged in an eight-shaped inclined manner. The horizontal component of the inclined rod can bear the huge earthquake horizontal shear force, ensuring that the giant frame column does not bear the horizontal shear force. There is no secondary bending moment in the giant frame column, and no inflection point will be formed.

[0039] The two oblique leg columns of the oblique leg rigid frame support structure 2 extend and cross to form an X-cross support. The X-cross support bears the horizontal shear force. The oblique leg rigid frame support has a good match with the X-cross support above, and the horizontal force path is smooth. The giant frame with X-cross support becomes a geometrically invariant structural system. The giant frame structure system with oblique support is essentially a giant truss structure based on the force characteristics, and has excellent seismic resistance.

[0040] The supporting use of inclined leg rigid frame support structure 2, giant column structure, X cross support and double-layer ring belt truss can form a giant frame structure system with inclined support and excellent seismic performance, ensuring the seismic performance of the underlying structure of the giant frame super-high-rise building structure.

[0041] The present invention will be further described below in conjunction with embodiments:

[0042] Example 1: A giant frame-core tube structure system, with a building height of 700 meters, a grid tube double steel plate concrete composite shear wall core tube inside, a bottom shear wall core tube thickness of 2.0 meters, and a giant frame structure system outside. The bottom circular steel tube giant column has a diameter of 6 meters and a floor height of 5 meters.

[0043] The outer giant frame structure system has a hexagonal shape. The distance between opposite sides of the hexagonal giant frame system is 100 meters. There are a total of six circular giant frame columns 1 in the whole building. The bottom diameter of the circular steel tube giant frame column 1 is 6 meters. The building floor height is 5 meters. A refuge reinforcement layer is set every 50 meters, and the span of the ring belt truss is 50 meters.

[0044] The bottom floor of the building is a three-story hollow hall. The entrance of the hollow hall adopts an inclined leg rigid frame door. The rigid frame horizontal beam 22 of the inclined leg rigid frame support structure 2 also serves as the conversion beam of the bottom floor hollow hall, bearing the load of the upper secondary frame structure 5. The rigid frame horizontal beam 22 of the inclined leg rigid frame support structure 2 adopts a variable-section steel box beam structure. The width of the steel box beam structure is 3.6 meters, the height of the steel box beam structure is 4 to 6 meters, the steel pipe wall thickness of the variable-section steel box beam is 30mm, and C50 concrete is poured inside.

[0045] The two rigid frame oblique leg columns 21 are made of equal-section rectangular steel tube concrete columns. The cross-sectional width of the rigid frame oblique leg column 21 is 3.6 meters, the cross-sectional height of the rigid frame oblique leg column 21 is 2.5 meters, the wall thickness of the rectangular steel tube of the rigid frame oblique leg column 21 is 30 mm, and C60 concrete is poured inside.

[0046] The two oblique leg columns of the oblique leg rigid frame support structure 2 extend and cross to form an X-cross support to bear the horizontal shear force of earthquakes. The building adopts 1000×2000mm rectangular steel tube concrete X-cross support. The wall thickness of the rectangular steel tube is 20mm, and C50 high-strength concrete is poured inside.

[0047] The belt truss beam 4 is a truss-type double-layer belt truss structure with a height of 6 meters. The upper chord of the belt truss adopts a steel tube concrete chord structure, the lower chord of the belt truss adopts a prestressed steel tube concrete core rod lower chord structure, and the belt truss web adopts a hollow steel tube.

[0048] A double row of secondary frame columns 51 are arranged on the rigid frame horizontal beam 22 of the inclined leg rigid frame support structure 2, and the spacing between the secondary frame columns 51 is 5 meters. The inner row of secondary frame columns 51 supports the floor secondary frame beams 52, and the outer row of secondary frame columns 51 supports the floor cantilever beams. The secondary frame columns 51 are all 700×700mm rigid concrete columns, with internal cross-shaped 600×300mm double H-shaped steel, external longitudinal force-bearing steel bars and stirrups, and the rigid concrete columns are cast with C50 high-strength concrete.

[0049] The secondary frame beam 52 is placed on the secondary frame column 51. The secondary frame beam 52 is made of H-shaped steel beam, and the floor panel is made of corrugated steel plate concrete floor.

[0050] The entrance to the hollow hall on the ground floor of the building uses an inclined leg rigid frame door. The inclined leg rigid frame is set between two giant columns, forming an inclined leg rigid frame support structure for the ground floor of the giant frame of the super high-rise building. It is beautiful and has excellent seismic performance, solving the problem of weak seismic resistance on the ground floor of the giant frame super high-rise building.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A super high-rise building giant frame bottom layer inclined leg rigid frame support structure, characterized by: The invention comprises a giant frame column (1), an inclined leg rigid frame support structure (2), a cross support structure (3), a ring belt truss beam (4) and a secondary frame structure (5), wherein the inclined leg rigid frame support structure (2) is arranged between two giant frame columns (1), and the inclined leg rigid frame support structure (2) is composed of two rigid frame inclined leg columns (21) and a rigid frame horizontal beam (22), wherein the lower ends of the rigid frame inclined leg columns (21) are respectively connected to the two giant frame columns (1), and the upper ends are connected to the rigid frame horizontal beam (22), and the upper ends of the rigid frame inclined leg columns (21) are connected to the two giant frame columns (1). The ends of the cross-support structures (3) extend upwards and are connected to the cross-support structures (3); the upper ends of the cross-support structures (3) are connected to two giant frame columns (1); the ring-belt truss beams (4) are arranged at the upper ends of the cross-support structures (3); another cross-support structure (3) is connected above the ring-belt truss beams (4); the ring-belt truss beams (4) and the cross-support structures (3) are repeatedly and alternately arranged upwards; a secondary frame structure (5) is also arranged between the two giant frame columns (1); the secondary frame structure (5) is located above the inclined leg rigid frame support structure (2); The two rigid frame oblique leg columns (21) are arranged in an eight-shaped pattern facing each other; The cross support structure (3) is an X-shaped cross support structure.

2. The super high-rise building giant frame bottom floor inclined leg rigid frame support structure according to claim 1 is characterized by: The secondary frame structure (5) comprises secondary frame columns (51) and secondary frame beams (52); a plurality of secondary frame columns (51) are arranged above the rigid frame horizontal beam (22); and multi-layered frame beams (52) are arranged between the secondary frame columns (51).

3. The super high-rise building giant frame bottom floor inclined leg rigid frame support structure according to claim 1 is characterized by: The rigid frame horizontal beam (22) is in the shape of a variable cross-section box beam.

4. A construction method for a super high-rise building giant frame bottom floor oblique leg rigid frame support structure, using the super high-rise building giant frame bottom floor oblique leg rigid frame support structure according to claim 2, characterized in that: The following steps are involved: S1. First construct the foundation of the super high-rise building, then construct the core tube shear wall and giant frame column (1), and then proceed The ring belt truss beam (4) is constructed and installed to form a giant frame structure; S2, installing and constructing two slanted leg columns (21) of the rigid frame facing each other in an eight-shaped shape in the giant frame structure, the lower ends of the slanted leg columns (21) of the rigid frame are respectively connected to the left and right giant frame columns (1), and the horizontal beam (22) of the rigid frame with a variable cross-section box beam structure is cantilevered and assembled to form a slanted leg rigid frame support structure (2); S3, hoisting and constructing the cross support structure (3), two splayed rigid frame oblique leg columns (21) facing each other are extended upwards and connected to the X-shaped cross support structure (3), thereby forming a giant frame structure with oblique supports; S4, finally installing the secondary frame columns (51) and the secondary frame beams (52), completing the installation of the secondary frame structure (5), and forming the bottom layer inclined leg rigid frame support structure system of the mega frame super high-rise building.

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