Super-large-span reinforced concrete cantilever structure

Abstract

The utility model discloses a super-large-span reinforced concrete cantilever structure which comprises a plurality of frame columns, adjacent frame columns are connected together through frame beams, and a rectangular frame is formed among the frame columns. The outer ends of the frame columns located at any two opposite corners of the rectangular frame are connected with a first overhanging longitudinal beam and a first overhanging cross beam correspondingly, and the outer end of the frame column located at any corner between the two opposite corners of the rectangular frame is connected with a second overhanging longitudinal beam and a second overhanging cross beam correspondingly. The first cantilever longitudinal beam and the second cantilever longitudinal beam are fixedly connected through a third cantilever cross beam, the first cantilever cross beam and the second cantilever cross beam are fixedly connected through a third cantilever longitudinal beam, and the second cantilever cross beam and the second cantilever longitudinal beam are fixedly connected through a cross beam. According to the cantilever structure, the force transmission path is clear, the bearing capacity and the cantilever width of the cantilever structure are effectively improved, and construction is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of construction industry, in particular to an ultra-large span reinforced concrete cantilever structure. Background Art

[0002] In order to pursue novel shapes, the design of the facades of multi-storey or high-rise buildings is becoming more and more complicated, especially the length of the roof eaves is getting longer and longer, which is difficult to design and construct the full reinforced concrete structure. In the actual construction of the existing technology, there are problems such as the complexity of the full cast-in-place structure and the difficulty in constructing the overhead layer formed between the cantilevered main beam, the cantilevered secondary beam and the inclined cornice plate. Summary of the invention

[0003] The utility model aims to provide a super-large span reinforced concrete cantilever structure, which can effectively reduce the construction difficulty and improve the load-bearing capacity of the cantilever structure.

[0004] The utility model is implemented as follows: an ultra-large span reinforced concrete cantilever structure comprises a plurality of frame columns, wherein adjacent frame columns are connected together by frame beams, a rectangular frame is formed between the plurality of frame columns, the outer ends of the frame columns located at any two opposite corners of the rectangular frame are respectively connected with a first cantilever longitudinal beam and a first cantilever transverse beam, the outer ends of the frame columns located at any one corner between the two opposite corners of the rectangular frame are respectively connected with a second cantilever longitudinal beam and a second cantilever transverse beam, the first cantilever longitudinal beam and the second cantilever longitudinal beam are parallel to each other, the first cantilever longitudinal beam and the second cantilever transverse beam are parallel to each other, and the first The cantilever cross beam and the second cantilever cross beam are parallel to each other, the end of the first cantilever longitudinal beam and the end of the second cantilever longitudinal beam are fixedly connected by a cross side beam, the end of the first cantilever cross beam and the end of the second cantilever cross beam are fixedly connected by a longitudinal side beam, and the cross side beam and the longitudinal side beam are vertically connected at the extension point, the first cantilever longitudinal beam and the second cantilever longitudinal beam are fixedly connected by a third cantilever cross beam, the first cantilever cross beam and the second cantilever longitudinal beam are fixedly connected by a third cantilever longitudinal beam, and the second cantilever cross beam and the second cantilever longitudinal beam are fixedly connected by a cross beam.

[0005] Optionally, the cross beam includes a fourth cantilevered cross beam and a fourth cantilevered longitudinal beam, the fourth cantilevered cross beam and the fourth cantilevered longitudinal beam are cross-connected, one end of the fourth cantilevered cross beam is connected to the second cantilevered longitudinal beam, the other end of the fourth cantilevered cross beam is connected to the longitudinal side beam, one end of the fourth cantilevered longitudinal beam is fixedly connected to the second cantilevered cross beam, and the other end of the fourth cantilevered longitudinal beam is fixedly connected to the cross side beam.

[0006] Optionally, a first cantilever plate is provided in the space enclosed by the first cantilevered longitudinal beam, the second cantilevered longitudinal beam, the transverse side beam and the frame beam, a second cantilever plate is provided in the space enclosed by the first cantilevered cross beam, the second cantilevered cross beam, the longitudinal side beam and the frame beam, and a third cantilever plate is provided in the space enclosed by the fourth cantilevered cross beam, the fourth cantilevered longitudinal beam, the longitudinal side beam and the transverse side beam.

[0007] Optionally, the two ends of the third cantilevered cross beam are respectively connected to the middle position of the first cantilevered longitudinal beam and the middle position of the second cantilevered longitudinal beam, the two ends of the third cantilevered longitudinal beam are respectively connected to the middle position of the first cantilevered cross beam and the middle position of the second cantilevered cross beam, the fourth cantilevered cross beam and the third cantilevered cross beam are located on the same straight line, and the fourth cantilevered longitudinal beam and the third cantilevered longitudinal beam are located on the same straight line.

[0008] The ultra-large span reinforced concrete cantilever structure of the utility model adopts the first cantilever cross beam and the second cantilever cross beam to form the cantilever structure on one side, and adopts the first cantilever longitudinal beam and the second cantilever longitudinal beam to form the cantilever structure on the other side, the second cantilever cross beam and the second cantilever longitudinal beam are respectively fixedly connected by the third cantilever cross beam and the third cantilever longitudinal beam, and cooperate with the external horizontal side beam and longitudinal side beam to form the cantilever structures on both sides into an integral cantilever structure, and the load-bearing load on the first cantilever plate, the second cantilever plate and the third cantilever plate can be transmitted to the frame column through the cantilever longitudinal beam and the cantilever cross beam. The entire force transmission path is clear, the cantilever width can be improved from the previous cantilever width, the load-bearing capacity of the cantilever structure is effectively improved, and the construction is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front structural schematic diagram of the ultra-large span reinforced concrete cantilever structure of the utility model.

[0010] Description of labels:

[0011] 1. Frame column;

[0012] 2. Frame beam;

[0013] 3. The first cantilevered longitudinal beam;

[0014] 4. The first cantilever beam;

[0015] 5. Second cantilevered longitudinal beam;

[0016] 6. Second cantilever beam;

[0017] 7. Horizontal side beam;

[0018] 8. Longitudinal side beams;

[0019] 9. The third cantilever beam;

[0020] 10. The third cantilevered longitudinal beam;

[0021] 11. Fourth cantilever beam;

[0022] 12. Fourth cantilevered longitudinal beam;

[0023] 13. First cantilever plate;

[0024] 14. Second cantilever plate;

[0025] 15. The third cantilever plate. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] See also Figure 1 The utility model provides an ultra-large span reinforced concrete cantilever structure, comprising a plurality of frame columns 1, wherein adjacent frame columns 1 are connected together by frame beams 2, and a rectangular frame is formed between the plurality of frame columns 1, and the outer ends of the frame columns 1 located at any two opposite corners of the rectangular frame are respectively connected with a first cantilever longitudinal beam 3 and a first cantilever transverse beam 4, and the outer ends of the frame columns 1 located at any one corner between the two opposite corners of the rectangular frame are respectively connected with a second cantilever longitudinal beam 5 and a second cantilever transverse beam 6, the first cantilever longitudinal beam 3 and the second cantilever longitudinal beam 5 are parallel to each other, and the first cantilever transverse beam 4 is connected to the outer ends of the frame columns 1 at any one corner between the two opposite corners of the rectangular frame. The first cantilevered longitudinal beam 3 and the second cantilevered longitudinal beam 6 are parallel to each other, the end of the first cantilevered longitudinal beam 3 and the end of the second cantilevered longitudinal beam 5 are fixedly connected by a transverse side beam 7, the end of the first cantilevered transverse beam 4 and the end of the second cantilevered transverse beam 6 are fixedly connected by a longitudinal side beam 8, and the transverse side beam 7 and the longitudinal side beam 8 are vertically connected at the extension part, the first cantilevered longitudinal beam 3 and the second cantilevered longitudinal beam 5 are fixedly connected by a third cantilevered transverse beam 9, the first cantilevered transverse beam 4 and the second cantilevered longitudinal beam 6 are fixedly connected by a third cantilevered longitudinal beam 10, and the second cantilevered transverse beam 6 and the second cantilevered longitudinal beam 5 are fixedly connected by a cross beam. The cross beam includes a fourth cantilevered cross beam 11 and a fourth cantilevered longitudinal beam 12, the fourth cantilevered cross beam 11 and the fourth cantilevered longitudinal beam 12 are cross-connected, one end of the fourth cantilevered cross beam 11 is connected to the second cantilevered longitudinal beam 5, the other end of the fourth cantilevered cross beam 11 is connected to the longitudinal side beam 8, one end of the fourth cantilevered longitudinal beam 12 is fixedly connected to the second cantilevered cross beam 6, and the other end of the fourth cantilevered longitudinal beam 12 is fixedly connected to the cross side beam 7.

[0028] In this embodiment, a plurality of adjacent frame columns 1 are connected together by frame beams 2 to form a rectangular frame, and a first cantilevered longitudinal beam 3 and a first cantilevered transverse beam 4 are connected by using a pair of outer ends of two frame columns 1 located at opposite corners, while the outer ends of the frame columns 1 between the two frame columns 1 at opposite corners are respectively connected to the second cantilevered transverse beam 6 and the second cantilevered longitudinal beam 5, so that the first cantilevered longitudinal beam 3, the first cantilevered transverse beam 4, the second cantilevered transverse beam 6 and the second cantilevered longitudinal beam 5 can be used as cantilever beams to play a load-bearing role. At the same time, the third cantilever longitudinal beam 10 is connected between the first cantilever cross beam 4 and the second cantilever cross beam 6, the third cantilever cross beam 9 is connected between the first cantilever longitudinal beam 3 and the second cantilever longitudinal beam 5, and a cross beam composed of four cantilever cross beams 11 and a fourth cantilever longitudinal beam 12 is installed between the second cantilever cross beam 6 and the second cantilever longitudinal beam 5, and finally the outer ends of the first cantilever longitudinal beam 3, the second cantilever longitudinal beam 5 and the fourth cantilever longitudinal beam 12 are fixedly connected by the transverse side beam 7, and the outer ends of the first cantilever cross beam 4, the second cantilever cross beam 6 and the fourth cantilever cross beam 11 are fixedly connected by the longitudinal side beam 8, so as to form an integral cantilever structure, and the cantilever cross beams and cantilever longitudinal beams are used as main load-bearing components to form an integral cantilever structure, the load-bearing load can be transmitted to the frame column through the cantilever cross beam, the force transmission path is clear, and the cantilever width can exceed the previous cantilever width.

[0029] In some embodiments, a first cantilever plate 13 is provided in the space enclosed by the first cantilever longitudinal beam 3, the second cantilever longitudinal beam 5, the transverse side beam 7 and the frame beam 2, a second cantilever plate 14 is provided in the space enclosed by the first cantilever cross beam 4, the second cantilever cross beam 6, the longitudinal side beam 8 and the frame beam 2, and a third cantilever plate 15 is provided in the space enclosed by the fourth cantilever cross beam 11, the fourth cantilever longitudinal beam 12, the longitudinal side beam 8 and the transverse side beam 7.

[0030] The load-bearing load on the cantilever slab can be transferred to the frame column through the cantilever beam. The force transmission path is clear and the cantilever width can exceed the previous cantilever width.

[0031] For example, the thickness of the first cantilever plate 13, the second cantilever plate 14, and the third cantilever plate 15 are all 120mm, and the cantilever width is 6m. The reinforcement is double-layer bidirectional steel bars, and the steel bars are arranged at a spacing of 200mm and a diameter of 8mm. The longitudinal side beam 8 and the transverse side beam 7 are reinforced concrete beams with a rectangular cross section, a width of 400mm, and a height of 600mm. The stirrups are arranged at a spacing of 200mm and a diameter of 10mm. There are two longitudinal upper main bars with a diameter of 22mm; there are two longitudinal lower main bars with a diameter of 20mm. The cantilever cross beam is a reinforced concrete beam with a rectangular cross section and a width of 300m. m, its height is 900mm, the stirrups are set with a spacing of 200mm and a diameter of 10mm; there are 3 longitudinal upper main bars with a diameter of 22mm; there are 2 longitudinal lower main bars with a diameter of 20mm; there are 2 torsional steel bars with a diameter of 16mm; the cantilevered longitudinal beam is a reinforced concrete variable-section beam with a rectangular cross-section and a width of 500mm; its height is 600-1400mm, the stirrups are set with a spacing of 200mm and a diameter of 10mm; there are 4 longitudinal upper main bars with a diameter of 25mm; there are 3 longitudinal lower main bars with a diameter of 22mm; there are 4 beam side structural steel bars with a diameter of 16mm.

[0032] In some embodiments, two ends of the third cantilever cross beam 9 are respectively connected to the middle position of the first cantilever longitudinal beam 3 and the middle position of the second cantilever longitudinal beam 5, two ends of the third cantilever longitudinal beam 10 are respectively connected to the middle position of the first cantilever cross beam 4 and the middle position of the second cantilever cross beam 6, the fourth cantilever cross beam 11 and the third cantilever cross beam 9 are located on the same straight line, and the fourth cantilever longitudinal beam 12 and the third cantilever longitudinal beam 10 are located on the same straight line.

[0033] By arranging the third cantilevered transverse beam 9 and the third cantilevered longitudinal beam 10 in the middle position, it can be ensured that the forces between the cantilevered transverse beams and the cantilevered longitudinal beams are more uniform, thereby enhancing the stability of the entire cantilevered structure.

[0034] The ultra-large span reinforced concrete cantilever structure of the utility model adopts the first cantilever cross beam and the second cantilever cross beam to form the cantilever structure on one side, and adopts the first cantilever longitudinal beam and the second cantilever longitudinal beam to form the cantilever structure on the other side, the second cantilever cross beam and the second cantilever longitudinal beam are respectively fixedly connected by the third cantilever cross beam and the third cantilever longitudinal beam, and cooperate with the external horizontal side beam and longitudinal side beam to form the cantilever structures on both sides into an integral cantilever structure, and the load-bearing load on the first cantilever plate, the second cantilever plate and the third cantilever plate can be transmitted to the frame column through the cantilever longitudinal beam and the cantilever cross beam. The entire force transmission path is clear, the cantilever width can be improved from the previous cantilever width, the load-bearing capacity of the cantilever structure is effectively improved, and the construction is more convenient.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A super-long span reinforced concrete cantilever structure, characterized in that: The invention comprises a plurality of frame columns (1), wherein adjacent frame columns (1) are connected together by frame beams (2), and a rectangular frame is formed between the plurality of frame columns (1); the outer ends of the frame columns (1) located at any two opposite corners of the rectangular frame are respectively connected to a first cantilevered longitudinal beam (3) and a first cantilevered transverse beam (4); the outer ends of the frame columns (1) located at any one corner between the two opposite corners of the rectangular frame are respectively connected to a second cantilevered longitudinal beam (5) and a second cantilevered transverse beam (6); the first cantilevered longitudinal beam (3) and the second cantilevered longitudinal beam (5) are parallel to each other, and the first cantilevered transverse beam (4) and the second cantilevered transverse beam (6) are parallel to each other. The first cantilevered longitudinal beam (3) and the second cantilevered longitudinal beam (5) are fixedly connected by a transverse side beam (7), the first cantilevered cross beam (4) and the second cantilevered cross beam (6) are fixedly connected by a longitudinal side beam (8), and the transverse side beam (7) and the longitudinal side beam (8) are vertically connected at the extension part, the first cantilevered longitudinal beam (3) and the second cantilevered longitudinal beam (5) are fixedly connected by a third cantilevered cross beam (9), the first cantilevered cross beam (4) and the second cantilevered cross beam (6) are fixedly connected by a third cantilevered longitudinal beam (10), and the second cantilevered cross beam (6) and the second cantilevered longitudinal beam (5) are fixedly connected by a cross beam.

2. The ultra-large span reinforced concrete cantilever structure according to claim 1 is characterized in that: The cross beam comprises a fourth cantilevered transverse beam (11) and a fourth cantilevered longitudinal beam (12); the fourth cantilevered transverse beam (11) and the fourth cantilevered longitudinal beam (12) are cross-connected; one end of the fourth cantilevered transverse beam (11) is connected to the second cantilevered longitudinal beam (5); the other end of the fourth cantilevered transverse beam (11) is connected to the longitudinal side beam (8); one end of the fourth cantilevered longitudinal beam (12) is fixedly connected to the second cantilevered transverse beam (6); the other end of the fourth cantilevered longitudinal beam (12) is fixedly connected to the transverse side beam (7).

3. The ultra-large span reinforced concrete cantilever structure according to claim 2 is characterized in that: A first cantilever plate (13) is provided in the space enclosed by the first cantilevered longitudinal beam (3), the second cantilevered longitudinal beam (5), the transverse side beam (7) and the frame beam (2); a second cantilever plate (14) is provided in the space enclosed by the first cantilevered transverse beam (4), the second cantilevered transverse beam (6), the longitudinal side beam (8) and the frame beam (2); and a third cantilever plate (15) is provided in the space enclosed by the fourth cantilevered transverse beam (11), the fourth cantilevered longitudinal beam (12), the longitudinal side beam (8) and the transverse side beam (7).

4. The ultra-large span reinforced concrete cantilever structure according to claim 2 is characterized in that: The two ends of the third cantilevered cross beam (9) are respectively connected to the middle position of the first cantilevered longitudinal beam (3) and the middle position of the second cantilevered longitudinal beam (5); the two ends of the third cantilevered longitudinal beam (10) are respectively connected to the middle position of the first cantilevered cross beam (4) and the middle position of the second cantilevered cross beam (6); the fourth cantilevered cross beam (11) and the third cantilevered cross beam (9) are located on the same straight line; and the fourth cantilevered longitudinal beam (12) and the third cantilevered longitudinal beam (10) are located on the same straight line.

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