Large cantilever bent cap structure

Abstract

The utility model discloses a large cantilever bent cap structure which comprises a base, a bridge pier fixedly connected to the upper surface of the base, a cantilever fixedly connected to the upper surface of the bridge pier, a plurality of buffer assemblies fixedly connected to the inner surface of the cantilever, and each buffer assembly comprises two fixing blocks, a sliding rod, a sliding block, a lower connecting block, an inclined rod, an upper connecting block, a third spring and a third damper. The two fixing blocks are fixedly connected to the inner surface of the cantilever, the sliding rod is fixedly connected between the two fixing blocks, the sliding block is slidably connected to the outer wall of the sliding rod, and the lower connecting block is fixedly connected to the upper surface of the lower connecting block. The shock absorber can play a role in a wider frequency range and shock amplitude, and shock with different frequencies and strengths caused by traffic loads can be well buffered.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a large cantilever cap beam structure. Background Art

[0002] The existing large cantilever cap beam structure is located at the top of the bridge pier and plays a key role in connecting the upper and lower parts. It transfers the load of the upper beam and other structures to the piers. It mainly bears the vertical loads from the upper structure, including vehicle loads, crowd loads and the gravity of the bridge superstructure itself. These loads are transferred to the cap beam through the beam supports.

[0003] However, when it is used, it has poor adaptability to different types of traffic loads, especially traffic loads with large variations in vibration frequency and amplitude. On some roads and bridges with mixed traffic, there are high-frequency vibrations of small cars and low-frequency and large-amplitude vibrations of large trucks. It does not have a multi-stage buffer system. When faced with such complex traffic loads, the cap beam structure is difficult to respond effectively, which may cause excessive deformation or damage to the structure under certain load conditions. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art, and to provide a large cantilever cap beam structure. Through the provided buffer assembly, when vibration occurs above the beam cover, it will first be transmitted to spring two and damper two for preliminary buffering. Subsequently, the upper connecting block will squeeze the diagonal rod downward, and the diagonal rod will squeeze the lower connecting block laterally, thereby compressing spring three and damper three to achieve secondary buffering. This force transmission method changes the direction of force, avoids the concentration of vibration energy in local areas, and evenly disperses the force to different positions, which helps to prevent certain parts of the cap beam structure from being locally damaged due to excessive force. The secondary buffering can effectively disperse and absorb vibration energy. Compared with a single buffering system, it can work within a wider frequency range and vibration amplitude. For vibrations of different frequencies and intensities caused by traffic loads, whether it is high-frequency and small-amplitude vibrations caused by high-speed vehicles or low-frequency and large-amplitude vibrations caused by the passage of heavy vehicles, they can be well buffered.

[0005] The utility model also provides a large cantilever cap beam structure as described above, comprising: a base, the upper surface of the base is fixedly connected to a pier, the upper surface of the pier is fixedly connected to a cantilever, the inner surface of the cantilever is fixedly connected to multiple groups of buffer components, the buffer components comprising: two fixed blocks, a slide rod, a slider, a lower connecting block, an oblique rod, an upper connecting block, three springs, and three dampers, the two fixed blocks are fixedly connected to the inner surface of the cantilever, the slide rod is fixedly connected between the two fixed blocks, the slider is slidably connected to the outer wall of the slide rod, the lower connecting block is fixedly connected to the upper surface of the lower connecting block, the three springs and the damper The third is fixedly connected between the lower connecting block and the fixed block, the oblique rod is rotatably connected to the inner surface of the lower connecting block, the upper connecting block is rotatably connected to the other end of the oblique rod, the upper surface of the upper connecting block is fixedly connected with spring 2, the upper surface of the upper connecting block is fixedly connected with damper 2, the upper ends of spring 2 and damper 2 are fixedly connected to the beam cover, the inner surface of the cantilever is fixedly connected with a sleeve, the inner surface of the sleeve is fixedly connected with damper 1, the inner surface of the sleeve is fixedly connected with spring 1, the upper ends of damper 1 and spring 1 are fixedly connected to a stabilizing bar, and the upper end of the stabilizing bar is fixedly connected to the lower surface of the beam cover.

[0006] According to the large cantilever cap beam structure described in the utility model, the lower surface of the beam cap is fixedly connected with a side plate, and the cantilever is located inside the side plate.

[0007] According to the large cantilever cap beam structure described in the utility model, a fan hole is provided on the cantilever, the inner wall of the fan hole is fixedly connected to a bracket, and the inner wall of the fan hole is fixedly connected to a heating plate.

[0008] According to the large cantilever cap beam structure described in the utility model, the inner surface of the bracket is fixedly connected to the motor, and the output end of the motor is fixedly connected to the fan blade.

[0009] According to the large cantilever cap beam structure described in the utility model, the side surface of the cantilever is fixedly connected with an air duct, one end of the air duct is connected to the fan hole, and the other end of the air duct is fixedly connected with a guard plate.

[0010] According to the large cantilever cap beam structure described in the utility model, an air outlet is provided on the guard plate, and a filter is fixedly connected to the inner wall of the air outlet.

[0011] According to the large cantilever cap beam structure described in the utility model, the side surface of the cantilever is fixedly connected to a protective shell, and the air duct is located inside the protective shell.

[0012] According to the large cantilever cap beam structure described in the utility model, the lower surface of the cantilever is fixedly connected to a lamp holder, and the inner surface of the lamp holder is fixedly connected to a lighting fixture.

[0013] Beneficial effects

[0014] 1. Compared with the existing technology, this large cantilever cap beam structure has a buffer assembly. When vibration occurs above the beam cover, it will first be transmitted to spring 2 and damper 2 for preliminary buffering. Subsequently, the upper connecting block will squeeze the diagonal rod downward, and the diagonal rod will squeeze the lower connecting block laterally, thereby compressing spring 3 and damper 3 to achieve secondary buffering. This force transmission method changes the direction of force, avoids the concentration of vibration energy in local areas, and evenly disperses the force to different positions, which helps to prevent certain parts of the cap beam structure from being locally damaged due to excessive force. The secondary buffering can effectively disperse and absorb vibration energy. Compared with a single buffer system, it can work in a wider frequency range and vibration amplitude. For vibrations of different frequencies and intensities caused by traffic loads, whether it is high-frequency and small-amplitude vibrations caused by high-speed vehicles or low-frequency and large-amplitude vibrations caused by heavy vehicles passing, they can all be well buffered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is the main structural diagram of the large cantilever cap beam structure of the utility model;

[0017] Figure 2 This is a front cross-sectional structural diagram of the large cantilever cap beam structure of the utility model;

[0018] Figure 3 This is a left-side sectional structural diagram of the large cantilever cap beam structure of the utility model;

[0019] Figure 4 This is a partially enlarged structural diagram of the large cantilever cap beam structure of the utility model;

[0020] Figure 5 This is a bottom-up structural diagram of the large cantilever cap beam structure of the utility model.

[0021] Legend:

[0022] 1. Beam cover; 2. Side plate; 3. Casing; 4. Cantilever; 5. Pier; 6. Base; 7. Air duct; 8. Guard plate; 9. Air outlet; 10. Filter; 11. Fan hole; 12. Bracket; 13. Motor; 14. Fan blade; 15. Stabilizer bar; 16. Sleeve; 17. Spring 1; 18. Damper 1; 19. Spring 2; 20. Damper 2; 21. Upper connecting block; 22. Diagonal rod; 23. Lower connecting block; 24. Fixed block; 25. Sliding bar; 26. Slider; 27. Spring 2; 28. Damper 3. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] Reference Figure 1-4 The utility model embodiment is a large cantilever cap beam structure, which includes: a base 6 for carrying components, a pier 5 is fixedly connected to the upper surface of the base 6 for bottom support, a cantilever 4 is fixedly connected to the upper surface of the pier 5, a fan hole 11 is provided on the cantilever 4, a bracket 12 is fixedly connected to the inner wall of the fan hole 11, a heating plate is fixedly connected to the inner wall of the fan hole 11 for heating the air around the fan blade 14, a motor 13 is fixedly connected to the inner surface of the bracket 12, and the output end of the motor 13 is fixedly connected. It is connected with fan blades 14, which are used to heat the inside of the cantilever in winter to prevent freezing. The side surface of the cantilever 4 is fixedly connected with an air duct 7, one end of the air duct 7 is connected to the fan hole 11, and the other end of the air duct 7 is fixedly connected with a guard plate 8, on which an air outlet 9 is provided, and the inner wall of the air outlet 9 is fixedly connected with a filter screen 10. The side surface of the cantilever 4 is fixedly connected with a protective shell 3, and the air duct 7 is located inside the protective shell 3. The lower surface of the cantilever 4 is fixedly connected with a lamp holder, and the inner surface of the lamp holder is fixedly connected with a light to increase visibility.

[0025] The inner surface of the cantilever 4 is fixedly connected with multiple groups of buffer components, which include: two fixed blocks 24, a sliding rod 25, a slider 26, a lower connecting block 23, an oblique rod 22, an upper connecting block 21, a spring three 27, and a damper three 28. The two fixed blocks 24 are fixedly connected to the inner surface of the cantilever 4, the sliding rod 25 is fixedly connected between the two fixed blocks 24, and is used to limit the sliding of the slider 26. The slider 26 is slidably connected to the outer wall of the sliding rod 25, and is used to connect the lower connecting block 23. The lower connecting block 23 is fixedly connected to the upper surface of the lower connecting block 23, the spring three 27 and the damper three 28 are fixedly connected between the lower connecting block 23 and the fixed block 24, and the oblique rod 22 is rotatably connected to the inner surface of the lower connecting block 23, and is used to change the direction of force transmission.

[0026] The upper connecting block 21 is rotatably connected to the other end of the inclined rod 22. The upper surface of the upper connecting block 21 is fixedly connected to a spring 219. The upper surface of the upper connecting block 21 is fixedly connected to a damper 20, which is used as a secondary vibration buffer. The upper ends of the spring 219 and the damper 20 are fixedly connected to the beam cover 1. The inner surface of the cantilever 4 is fixedly connected to the sleeve 16. The inner surface of the sleeve 16 is fixedly connected to the damper 18. The inner surface of the sleeve 16 is fixedly connected to the spring 17. The upper ends of the damper 18 and the spring 17 are fixedly connected to the stabilizing rod 15 for supporting the four sides of the beam cover 1. The upper end of the stabilizing rod 15 is fixedly connected to the lower surface of the beam cover 1. The lower surface of the beam cover 1 is fixedly connected to the side plate 2. The cantilever 4 is located inside the side plate 2.

[0027] Working principle: During use, when vibration occurs above the beam cover 1, the vibration is first transmitted to spring 2 19 and damper 2 20. Spring 2 19 and damper 2 20 begin to compress and stretch, providing preliminary buffering for the vibration, absorbing part of the vibration energy and slowing down the transmission speed of the vibration. As the vibration continues, the upper connecting block 21 is subjected to pressure to squeeze the diagonal rod 22 downward. After being squeezed, the diagonal rod 22 pushes the lower connecting block 23 sideways, and the lower connecting block 23 drives the slider 26 to slide on the slide rod 25. At this time, spring three 27 and damper three 28 are compressed, further absorbing the vibration energy and realizing secondary buffering. The force transmission direction is changed by the diagonal rod 22, and the vibration energy is dispersed to different positions to avoid concentration in local areas. At the same time, damper 18 and spring 17 in the sleeve 16 will also compress and stretch with the vibration of the beam cover 1, providing support and buffering for the beam cover 1 from all sides, further enhancing the vibration resistance of the entire structure and ensuring the stability and safety of the large cantilever cap beam structure in a vibration environment.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A large cantilever cap beam structure, characterized in that: include: A base (6), the upper surface of the base (6) is fixedly connected to a pier (5), the upper surface of the pier (5) is fixedly connected to a cantilever (4), the inner surface of the cantilever (4) is fixedly connected to multiple groups of buffer components, the buffer components comprising: two fixed blocks (24), a slide rod (25), a slider (26), a lower connecting block (23), an inclined rod (22), an upper connecting block (21), three springs (27), three dampers (28), the two fixed blocks (24) are fixed The sliding rod (25) is fixedly connected to the inner surface of the cantilever (4), the sliding rod (25) is fixedly connected between the two fixed blocks (24), the sliding block (26) is slidably connected to the outer wall of the sliding rod (25), the lower connecting block (23) is fixedly connected to the upper surface of the lower connecting block (23), the spring three (27) and the damper three (28) are fixedly connected between the lower connecting block (23) and the fixed block (24), and the inclined rod (22) is rotatably connected to the inner surface of the lower connecting block (23); The upper connecting block (21) is rotatably connected to the other end of the inclined rod (22); the upper surface of the upper connecting block (21) is fixedly connected to a second spring (19); the upper surface of the upper connecting block (21) is fixedly connected to a second damper (20); the upper ends of the second spring (19) and the second damper (20) are fixedly connected to the beam cover (1); the inner surface of the cantilever (4) is fixedly connected to a sleeve (16); the inner surface of the sleeve (16) is fixedly connected to a first damper (18); the inner surface of the sleeve (16) is fixedly connected to a first spring (17); the upper ends of the first damper (18) and the first spring (17) are fixedly connected to a stabilizing rod (15); the upper end of the stabilizing rod (15) is fixedly connected to the lower surface of the beam cover (1).

2. The large cantilever cap beam structure according to claim 1, characterized in that: The lower surface of the beam cover (1) is fixedly connected to a side plate (2), and the cantilever (4) is located inside the side plate (2).

3. The large cantilever cap beam structure according to claim 1, characterized in that: A fan hole (11) is provided on the cantilever (4), a bracket (12) is fixedly connected to the inner wall of the fan hole (11), and a heating plate is fixedly connected to the inner wall of the fan hole (11).

4. The large cantilever cap beam structure according to claim 3, characterized in that: The inner surface of the bracket (12) is fixedly connected to a motor (13), and the output end of the motor (13) is fixedly connected to a fan blade (14).

5. The large cantilever cap beam structure according to claim 3, characterized in that: An air duct (7) is fixedly connected to the side surface of the cantilever (4), one end of the air duct (7) is communicated with the fan hole (11), and the other end of the air duct (7) is fixedly connected to a guard plate (8).

6. The large cantilever cap beam structure according to claim 5, characterized in that: An air outlet (9) is provided on the guard plate (8), and a filter screen (10) is fixedly connected to the inner wall of the air outlet (9).

7. The large cantilever cap beam structure according to claim 5, characterized in that: The side surface of the cantilever (4) is fixedly connected to a protective shell (3), and the air duct (7) is located inside the protective shell (3).

8. The large cantilever cap beam structure according to claim 1, characterized in that: The lower surface of the cantilever (4) is fixedly connected to a lamp holder, and the inner surface of the lamp holder is fixedly connected to a lighting fixture.

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