Windproof anchoring device for steel box girder

Abstract

The embodiment of the utility model provides a windproof anchoring device for a steel box girder, which comprises a support, a cushion block layer and a plurality of turnbuckles, and a plurality of support lifting lugs are arranged on the support; one end of the cushion block layer is fixed to the support, and the other end of the cushion block layer is fixed to the beam bottom which is provided with a plurality of beam bottom lifting lugs. The two ends of the basket screw are fixed to the support lifting lug and the beam bottom lifting lug respectively, and the included angle between the basket screw and the horizontal plane ranges from 30 degrees to 60 degrees. Through the connection relation among the support lifting lugs, the beam bottom lifting lugs and the turnbuckle, a stable triangular fixing structure is formed, influences of natural factors such as thermal expansion and cold contraction and wind power are effectively resisted, the included angle between the turnbuckle and the horizontal plane is controlled to range from 30 degrees to 60 degrees, and the stability of the structure is improved. The triangular fixing structure can provide maximum stability and strength at different angles, position deviation caused by thermal expansion and cold contraction is effectively counteracted, and the accuracy of elevation and linearity of the steel box girder is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of windproof anchoring technology for steel box girders, and specifically relates to a device for windproof anchoring of steel box girders. Background Technology

[0002] In recent years, with the rapid development of bridge engineering technology, large-segment steel box girders have been increasingly widely used in bridge construction, especially in the construction of long-span sea-crossing bridges. Due to the extremely high precision requirements for the elevation and linearity of steel box girders during bridge construction, they often need to be temporarily placed on supports. During this process, and later when adjusting the linearity of the steel box girder with cables, implementing effective wind-resistant anchoring measures is particularly important. However, existing technologies still have many shortcomings in this area: large-segment steel box girders experience thermal expansion and contraction due to diurnal temperature variations, which may cause slight displacements in their position, thus affecting the accuracy of their elevation and linearity. Existing wind-resistant anchoring measures often cannot effectively address this positional deviation, increasing construction risks; after cable installation, large-segment steel box girders are prone to significant swaying due to wind and other natural factors. This swaying not only affects the accuracy of measurement data but may also adversely affect subsequent work connecting other steel box girder segments; to prevent the steel box girder from sliding or tilting on temporary supports, existing wind-resistant anchoring methods usually require the fabrication of complex stop fixtures. These tools not only increased construction costs but also extended the construction period and reduced construction efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a device for windproof anchoring of steel box girders. Through the reasonable arrangement of lifting lugs and the use of turnbuckles, a stable triangular fixing structure is formed, which effectively resists the influence of natural factors such as thermal expansion and contraction and wind force, ensuring the stable storage of steel box girders on temporary supports and resisting severe weather such as typhoon season and monsoon season.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A device for windproof anchoring of steel box girders, comprising:

[0005] The support is provided with multiple support lugs;

[0006] A pad layer, one end of which is fixed to the support and the other end of which is fixed to the bottom of the beam, wherein the bottom of the beam is provided with multiple bottom lifting lugs;

[0007] Multiple turnbuckles are provided, with both ends of each turnbuckle fixed to the support lug and the beam bottom lug, respectively. The angle between each turnbuckle and the horizontal plane is between 30° and 60°.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model forms a stable triangular fixing structure through the connection relationship between the support lugs, the bottom lugs of the beam, and the turnbuckle, which effectively resists the influence of natural factors such as thermal expansion and contraction and wind force. Furthermore, by controlling the angle between the turnbuckle and the horizontal plane between 30° and 60°, the triangular fixing structure can provide maximum stability and strength at different angles, effectively offsetting the positional deviation caused by thermal expansion and contraction, and ensuring the accuracy of the steel box girder elevation and linearity.

[0009] The aforementioned windproof anchoring device includes a support lug and a longitudinal support lug. The two transverse support lugs are fixed to both sides of the longitudinal support lug. The transverse support lugs are used for the transverse connection of the turnbuckle, and the longitudinal support lugs are used for the longitudinal connection of the turnbuckle.

[0010] The aforementioned windproof anchoring device includes a beam bottom lifting lug and a longitudinal beam bottom lifting lug. The two transverse beam bottom lifting lugs are fixed to both sides of the longitudinal beam bottom lifting lug. The transverse beam bottom lifting lugs are used to connect the turnbuckle to the transverse support lifting lug, and the longitudinal beam bottom lifting lugs are used to connect the turnbuckle to the longitudinal support lifting lug.

[0011] In the aforementioned windproof anchoring device, the pad layer is composed of multiple stacked pads, which are used to adjust the elevation of the steel box girder.

[0012] The aforementioned windproof anchoring device has a support lug plate and multiple support ribs on the support lug. The multiple support ribs are evenly distributed on both sides of the support lug plate, and the outward angle of the support lug plate is 60° to counteract the lateral force on the axis of the turnbuckle.

[0013] The aforementioned windproof anchoring device includes a beam bottom lifting lug plate and multiple beam bottom ribs on the beam bottom lifting lug. The multiple beam bottom ribs are evenly distributed on both sides of the beam bottom lifting lug plate, and the outward angle of the beam bottom lifting lug plate is 60° to counteract the lateral force on the axis of the turnbuckle.

[0014] The aforementioned windproof anchoring device includes a turnbuckle comprising a connecting section and a fastening section. The connecting section is located on both sides of the fastening section, and the turnbuckle is fastened by rotating the fastening section.

[0015] The aforementioned windproof anchoring device also includes multiple code plates, which are used to connect two adjacent steel box girder segments, with a spacing of 2m between adjacent code plates.

[0016] In the aforementioned windproof anchoring device, the diameter of the hole below the code plate should be greater than the sum of the cross-sections of the two steel box girder segments.

[0017] The aforementioned windproof anchoring device is installed at two locations in the transverse direction and one location in the longitudinal direction, with three fixed connections at one support point. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the windproof anchoring device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the code plate according to an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the windproof anchoring device in the cross and longitudinal bridge layouts according to an embodiment of this utility model.

[0021] The reference numerals are as follows: 100 support, 110 support lug, 111 transverse support lug, 112 longitudinal support lug, 120 support lug plate, 130 support rib plate, 200 pad layer, 210 pad block, 300 beam bottom, 310 beam bottom lug, 311 transverse beam bottom lug, 312 longitudinal beam bottom lug, 320 beam bottom lug plate, 330 beam bottom rib plate, 400 turnbuckle, 410 connecting section, 420 fastening section, 500 clamp plate. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below, with reference to Figures 1 to 3This utility model provides a device for windproof anchoring of steel box girders, including: a support 100, a pad layer 200, and a plurality of turnbuckles 400. The support 100 is provided with a plurality of support lugs 110; one end of the pad layer 200 is fixed to the support 100, and the other end is fixed to the bottom of the beam 300, which is provided with a plurality of bottom lifting lugs 310; both ends of the turnbuckles 400 are fixed to the support lugs 110 and the bottom lifting lugs 310, respectively, and the angle between the turnbuckles 400 and the horizontal plane is between 30° and 60°. This invention forms a stable triangular fixing structure through the connection between the support lugs 110, the beam bottom lugs 310, and the turnbuckles 400. This effectively resists the influence of natural factors such as thermal expansion and contraction and wind force. Furthermore, by controlling the angle between the turnbuckles 400 and the horizontal plane between 30° and 60°, the triangular fixing structure can provide maximum stability and strength at different angles, effectively offsetting positional deviations caused by thermal expansion and contraction, and ensuring the accuracy of the steel box girder's elevation and linearity. This invention also ensures the stable storage of the steel box girder on temporary supports by setting multiple support lugs 110 on the support 100 and connecting the support 100 to the bottom of the steel box girder 300 through a pad layer 200. In particular, the connection between the support lugs 110 and the beam bottom lugs 310 through multiple turnbuckles 400 forms a stable triangular fixing structure. This structural design not only effectively resists the effects of natural factors such as wind, but also adapts to the thermal expansion and contraction of the steel box girder under diurnal temperature variations, preventing positional deviations from affecting construction accuracy. More importantly, the angle between the turnbuckle 400 and the horizontal plane is controlled between 30° and 60°. This angle range maximizes the stability and strength advantages provided by the triangular fixing structure, ensuring the stability of the steel box girder in different directions. Furthermore, this design simplifies construction processes, reduces construction costs, and improves construction efficiency, making it particularly suitable for the construction of long-span sea-crossing bridges, ensuring construction quality and safety.

[0023] Furthermore, the support lugs 110 include transverse support lugs 111 and longitudinal support lugs 112. The two transverse support lugs 111 are fixed to both sides of the longitudinal support lugs 112. The transverse support lugs 111 are used for the transverse connection of the turnbuckle 400, and the longitudinal support lugs 112 are used for the longitudinal connection of the turnbuckle 400. By dividing the support lugs 110 into transverse support lugs 111 and longitudinal support lugs 112, the connection points of the turnbuckle 400 are rationally arranged, ensuring the stability of the steel box girder in multiple directions. Specifically, the transverse support lugs 111 are used for the transverse connection of the turnbuckle 400, which can effectively resist the wind force and sway in the transverse direction of the bridge, while the longitudinal support lugs 112 are used for the longitudinal connection of the turnbuckle 400, which can effectively resist the wind force and displacement in the longitudinal direction of the bridge. This multi-directional wind-resistant anchoring design ensures more uniform stress distribution on the steel box girder in different directions, reducing the risk of structural deformation or damage caused by uneven stress in a single direction. Furthermore, the reasonable arrangement of the lifting lugs allows for flexible adjustment of the turnbuckle 400 connection method according to actual construction needs, further improving the adaptability and reliability of the device. Especially in the construction of long-span sea-crossing bridges, this multi-directional wind-resistant anchoring measure is crucial for ensuring the safe storage and linear adjustment of the steel box girder. Further, the bottom lifting lug 310 includes transverse bottom lifting lugs 311 and longitudinal bottom lifting lugs 312. The two transverse bottom lifting lugs 311 are fixed to both sides of the longitudinal bottom lifting lug 312. The transverse bottom lifting lugs 311 are used to connect the turnbuckle 400 to the transverse support lifting lug 111, and the longitudinal bottom lifting lug 312 is used to connect the turnbuckle 400 to the longitudinal support lifting lug 112. The bottom lifting lugs 310 are divided into transverse bottom lifting lugs 311 and longitudinal bottom lifting lugs 312, further optimizing the connection method of the turnbuckle 400 and ensuring the stability of the steel box girder in multiple directions. Specifically, the transverse bottom lifting lugs 311 are used to connect the turnbuckle 400 to the transverse support lifting lugs 111, effectively resisting wind forces and swaying in the transverse direction of the bridge, while the longitudinal bottom lifting lugs 312 are used to connect the turnbuckle 400 to the longitudinal support lifting lugs 112, effectively resisting wind forces and displacement in the longitudinal direction of the bridge. This multi-directional wind-resistant anchoring design makes the stress on the steel box girder more uniform in different directions, reducing the risk of structural deformation or damage caused by uneven stress in one direction. In addition, through reasonable lug arrangement, the connection method of the turnbuckle 400 can be flexibly adjusted according to actual construction needs, further improving the adaptability and reliability of the device. Especially in the construction of long-span cross-sea bridges, this multi-directional wind-resistant anchoring measure is of great significance for ensuring the safe storage and linear adjustment of the steel box girder. At the same time, this design simplifies the construction process, reduces construction costs, and improves construction efficiency.

[0024] Furthermore, the pad layer 200 is composed of multiple pads 210 stacked together, which are used to adjust the elevation of the steel box girder. The pads 210 can be flexibly added or removed according to actual construction needs, ensuring precise elevation adjustment of the steel box girder at different heights. This design not only adapts to the thermal expansion and contraction of the steel box girder under diurnal temperature variations, avoiding the impact of positional deviations on construction accuracy, but also allows for fine-tuning during the installation of the steel box girder, ensuring the accuracy of its elevation and linearity. Further still, the support lug 110 is equipped with a support lug plate 120 and multiple support ribs 130. The multiple support ribs 130 are evenly distributed on both sides of the support lug plate 120, with an outward angle of 60° to counteract the lateral force on the axis of the turnbuckle 400. By setting the support lug plate 120 and multiple support ribs 130 on the support lug 110, the load-bearing capacity and structural stability of the support lug 110 are significantly enhanced. Specifically, the support rib 130 allows the support lug 110 to better distribute stress when subjected to the lateral force transmitted from the turnbuckle 400, preventing structural damage caused by excessive local stress. The outward angle of the support lug plate 120 is designed to be 60°. This angle can effectively counteract the lateral force transmitted from the axis of the turnbuckle 400, ensuring that the support lug 110 is subjected to more uniform stress in different directions, reducing the risk of structural deformation or damage caused by uneven lateral force.

[0025] Furthermore, the bottom lifting lug 310 is provided with a bottom lifting lug plate 320 and multiple bottom ribs 330. The multiple bottom ribs 330 are evenly distributed on both sides of the bottom lifting lug plate 320, and the outward angle of the bottom lifting lug plate 320 is 60° to counteract the lateral force on the axis of the turnbuckle 400. By providing the bottom lifting lug plate 320 and multiple bottom ribs 330 on the bottom lifting lug 310, the load-bearing capacity and structural stability of the bottom lifting lug 310 are significantly enhanced. Specifically, the bottom ribs 330 enable the bottom lifting lug 310 to better distribute stress when bearing the lateral force transmitted from the turnbuckle 400, avoiding structural damage caused by excessive local stress. The outward angle of the bottom lifting lug plate 320 is designed to be 60°. This angle effectively counteracts the lateral force transmitted from the axis of the turnbuckle 400, ensuring that the bottom lifting lug 310 is subjected to more uniform force in different directions, reducing the risk of structural deformation or damage caused by uneven lateral force. Furthermore, the turnbuckle 400 includes a connecting section 410 and a fastening section 420. The connecting section 410 is located on both sides of the fastening section 420, and the turnbuckle 400 is fastened by rotating the fastening section 420. By designing the turnbuckle 400 with a structure including the connecting section 410 and the fastening section 420, a simple and effective fastening method is provided. Specifically, the connecting section 410 is located on both sides of the fastening section 420, and the turnbuckle 400 can be quickly fastened and loosened by rotating the fastening section 420, making the operation simple and quick. This design not only adapts to steel box girder and support combinations of different heights, but also ensures that after the steel box girder is adjusted to the predetermined position, its length can still be adjusted to effectively connect the two lifting lugs, thus achieving stable and reliable lifting operations.

[0026] Furthermore, the windproof anchoring device proposed in this utility model refers to... Figure 2 The system also includes multiple support plates 500, which are used to connect two adjacent steel box girder segments. The spacing between two adjacent support plates 500 is 2m. By setting multiple support plates 500, a simple and effective connection method is provided, ensuring a stable connection between two adjacent steel box girder segments. Specifically, the support plates 500 are used to connect two adjacent steel box girder segments, and the spacing between two adjacent support plates 500 is 2m. This spacing design can effectively enhance the stability of the two steel box girder segments and reduce swaying caused by wind or temperature differences. Furthermore, the diameter of the hole below the support plate 500 should be greater than the sum of the cross-sections of the two steel box girder segments. The design of the hole diameter on the support plate 500 can provide sufficient operating space for welders, ensuring that welders can easily perform welding operations and guaranteeing welding quality. Furthermore, the windproof anchoring device provided by this utility model refers to... Figure 3The steel box girder is fixed at three points: two in the transverse direction and one in the longitudinal direction, with one support point and three fixed connections. This design effectively resists wind forces and swaying in both the transverse and longitudinal directions, and rationally controls the girder's motion response under long-term influences from wind and diurnal temperature variations. This structure ensures more uniform stress distribution on the steel box girder in different directions, reducing the risk of structural deformation or damage caused by uneven stress in a single direction. Furthermore, this multi-point fixing design enhances the overall rigidity of the steel box girder, improves its fatigue resistance, and extends its service life.

[0027] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A device for wind anchoring of a steel box girder, characterized in that, The utility model provides a kind of steel box girder support structure, including: Support (100), multiple support lugs (110) are provided on the support (100); Pile block layer (200), one end of the pile block layer (200) is fixed with the support (100), the other end is fixed with beam bottom (300), the beam bottom (300) is equipped with multiple beam bottom lugs (310); Multiple flower basket screw rods (400), two ends of the flower basket screw rod (400) are fixed with the support lug (110) and the beam bottom lug (310) respectively, and the included angle between the flower basket screw rod (400) and the horizontal plane is between 30 °~60 °.

2. The wind anchoring device of claim 1, wherein, The support lug (110) includes transverse support lug (111) and longitudinal support lug (112), two transverse support lugs (111) are fixed on the two sides of the longitudinal support lug (112), the transverse support lug (111) is used for the transverse connection of the flower basket screw rod (400), and the longitudinal support lug (112) is used for the longitudinal connection of the flower basket screw rod (400).

3. The wind anchoring device of claim 2, wherein, The beam bottom lug (310) includes transverse beam bottom lug (311) and longitudinal beam bottom lug (312), two transverse beam bottom lugs (311) are fixed on the two sides of the longitudinal beam bottom lug (312), the transverse beam bottom lug (311) is used for the connection of the flower basket screw rod (400) and the transverse support lug (111), and the longitudinal beam bottom lug (312) is used for the connection of the flower basket screw rod (400) and the longitudinal support lug (112).

4. The wind anchoring device of claim 1, wherein, The pile block layer (200) is composed of multiple pile blocks (210) stacked, and the pile block (210) is used to adjust the elevation of the steel box girder.

5. The wind anchoring device of claim 1, wherein, The support lug (110) is provided with a support lug plate (120) and multiple support rib plates (130), multiple support rib plates (130) are evenly distributed on the two sides of the support lug plate (120), the outer angle of the support lug plate (120) is 60 °, to offset the lateral force on the axis of the flower basket screw rod (400).

6. The wind anchoring device of claim 1, wherein, The beam bottom lug (310) is provided with a beam bottom lug plate (320) and multiple beam bottom rib plates (330), multiple beam bottom rib plates (330) are evenly distributed on the two sides of the beam bottom lug plate (320), and the outer angle of the beam bottom lug plate (320) is 60 °, to offset the lateral force on the axis of the flower basket screw rod (400).

7. The wind anchoring device of claim 1, wherein, The flower basket screw rod (400) includes a connecting section (410) and a fastening section (420), the connecting section (410) is located on both sides of the fastening section (420), and the fastening of the flower basket screw rod (400) is realized by rotating the fastening section (420).

8. The wind anchoring device of claim 1, wherein, It also includes multiple code plates (500), the code plate (500) is used to connect two adjacent segments of steel box girder, and the spacing between two adjacent code plates (500) is 2m.

9. A wind anchoring device according to claim 8, wherein, The diameter of the hole below the code plate (500) should be greater than the sum of the cross section of the steel box girder of two segments.

10. The wind anchoring device of claim 1, wherein, Two are arranged in the transverse direction respectively, one is arranged in the longitudinal direction, and three are fixedly connected.

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