Assembly type bridge floor system hoisting hoist

Abstract

The utility model belongs to bridge floor construction equipment technical field, specifically disclose a kind of assembly type bridge floor system hoist, including bearing frame, the bearing frame includes two first crossbeam of opposite arrangement, two first crossbeam between being equipped with two second crossbeam, the both ends of second crossbeam are connected to two first crossbeam respectively, still be equipped with several third crossbeam between two second crossbeam. The utility model provides a kind of assembly type bridge floor system hoist, the upper end of the junction of first crossbeam and second crossbeam, the lower end of the junction of first crossbeam and second crossbeam, the lower end of the junction of second crossbeam and third crossbeam are all equipped with mounting lug, form three-dimensional lifting point network, can be according to the geometry of bridge floor component and gravity center position flexible selection lifting point combination, realize load uniform distribution, effectively avoid local stress concentration, reduce hoist deformation or component damage risk, especially suitable for large-span or special-shaped bridge face high-precision hoisting demand.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge deck construction equipment, and in particular to a prefabricated bridge deck hoisting tool. Background Technology

[0002] In bridge construction, the hoisting of precast bridge deck components is a crucial step in ensuring construction efficiency and safety. Traditional bridge deck lifting equipment typically employs a single lifting point or a simple, symmetrically distributed lifting point design, such as setting a limited number of lifting lugs only at the top or bottom of the support frame. While this structure can meet conventional hoisting needs, it exposes the following problems in complex bridge projects (such as long-span, irregularly shaped, or curved bridge decks):

[0003] First, the distribution of lifting points is unreasonable: the number and position of the lifting lugs of traditional lifting tools are fixed, which leads to uneven force during lifting, which can easily cause local stress concentration, resulting in deformation of the lifting tools or even damage to the components. In addition, the connection between the lifting lugs and the support is prone to fatigue damage due to repeated stress.

[0004] Second, the structural strength is insufficient: the support structure lacks effective internal support design, and its overall bending and torsional resistance is poor, making it difficult to meet the hoisting requirements of heavy or special-shaped bridge decks.

[0005] Third, the adaptability is limited: the existing lifting equipment is difficult to dynamically adjust the position of the lifting point according to the bridge deck size and center of gravity, and the lifting equipment needs to be changed frequently or auxiliary reinforcement is required, resulting in low construction efficiency.

[0006] In summary, existing lifting devices suffer from problems such as easy damage at the connection between the lifting lugs and the support, and poor structural stability. Utility Model Content

[0007] This utility model provides a prefabricated bridge deck lifting device that can solve the problems of easy damage at the connection between the lifting lug and the support and poor structural stability in the existing lifting devices.

[0008] A prefabricated bridge deck hoisting device includes a support frame, the support frame including two first crossbeams arranged opposite each other, two second crossbeams provided between the two first crossbeams, the two ends of the second crossbeams being respectively connected to the two first crossbeams, and a plurality of third crossbeams provided between the two second crossbeams, the two ends of the third crossbeams being respectively connected to the two second crossbeams.

[0009] The upper end of the connection between the first and second crossbeams, the lower end of the connection between the first and second crossbeams, and the lower end of the connection between the second and third crossbeams are all provided with mounting lugs.

[0010] Furthermore, the number of the third crossbeams is not less than two.

[0011] Furthermore, the mounting lug includes a base plate and an ear plate located at the top center of the base plate, and the ear plate has a lifting hole on its side.

[0012] Furthermore, a reinforcing plate is provided at the center of both the left and right sides of the ear plate;

[0013] The reinforcing plate has a second lifting hole at the position corresponding to the first lifting hole.

[0014] Furthermore, a second reinforcing plate is provided at the lower end of both the left and right sides of the ear plate, and the bottom of the second reinforcing plate is located on the base plate.

[0015] Furthermore, there are two reinforcing plates, which are arranged opposite to each other.

[0016] Furthermore, a reinforcing connector is provided at the upper end of the connection between the second and third crossbeams.

[0017] Furthermore, the reinforcing connector includes a reinforcing base plate and two corner protectors located on the underside of the reinforcing base plate;

[0018] The two corner protectors are positioned opposite each other, located at the left and right ends of the bottom of the reinforced base plate, respectively.

[0019] Furthermore, the corner protection component includes a horizontal component and a vertical component, which are perpendicular to each other;

[0020] The inner side of the corners of the horizontal and vertical components is provided with reinforcing ribs.

[0021] Furthermore, the distance between the first crossbeam and the third crossbeam is marked as d1;

[0022] The distance between the two third crossbeams is marked as d2;

[0023] The ratio of d2 to d1 is 0.6-1.0.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model provides a prefabricated bridge deck system lifting device. The upper end of the connection between the first and second crossbeams, the lower end of the connection between the first and second crossbeams, and the lower end of the connection between the second and third crossbeams are all provided with lifting lugs, forming a three-dimensional lifting point network. The combination of lifting points can be flexibly selected according to the geometry and center of gravity of the bridge deck components to achieve uniform load distribution, effectively avoid local stress concentration, and reduce the risk of deformation of the lifting device or damage to the components. It is especially suitable for the high-precision lifting requirements of large-span or irregular bridge decks.

[0026] 2. This utility model provides a prefabricated bridge deck lifting device with several third crossbeams. These crossbeams not only serve as supporting reinforcements but also form a rigid frame with the installation lugs, significantly improving the overall bending, torsional, and shear resistance of the lifting device. The synergistic effect of the third crossbeams and the lugs can disperse multi-directional impact loads during dynamic lifting, reducing structural fatigue damage and extending the service life of the lifting device.

[0027] 3. This utility model provides a prefabricated bridge deck system lifting device. The double-layer lifting lugs at the top and bottom, together with the multiple lifting lugs in the middle, form a multi-lifting point configuration. Without changing the lifting device, it can quickly adapt to bridge deck components of different sizes, weights, and lifting angles through different lifting point combinations, reducing construction interruptions and investment in auxiliary equipment, significantly shortening the lifting preparation time, and reducing the overall construction cost. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 A structural bottom view of a prefabricated bridge deck hoisting device provided by this utility model;

[0030] Figure 2 A structural front view of a prefabricated bridge deck hoisting device provided by this utility model;

[0031] Figure 3 This utility model provides a structural front view of the installation lugs of a prefabricated bridge deck lifting device.

[0032] Figure 4 Left view of the installation lug structure of a prefabricated bridge deck hoisting tool provided by this utility model;

[0033] Figure 5 The bottom structural view of a reinforcing connector for a prefabricated bridge deck hoisting device provided by this utility model.

[0034] Explanation of reference numerals in the attached drawings: 1. Support frame; 3. First crossbeam; 4. Second crossbeam; 5. Third crossbeam; 6. Lifting lug; 7. Reinforcing connector; 61. Base plate; 62. Ear plate; 63. Lifting hole one; 64. Reinforcing plate one; 65. Lifting hole two; 66. Reinforcing plate two; 71. Reinforcing base plate; 72. Corner protector; 73. Horizontal component; 74. Vertical component; 75. Reinforcing rib; 76. Installation cavity. Detailed Implementation

[0035] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0036] like Figures 1 to 5 As shown, this utility model provides a prefabricated bridge deck system lifting device, including a support frame 1. The support frame 1 includes two first crossbeams 3 arranged opposite each other. Two second crossbeams 4 are fixedly installed between the two first crossbeams 3. The two ends of the second crossbeams 4 are respectively connected to the two first crossbeams 3, and the second crossbeams 4 are perpendicular to the first crossbeams 3.

[0037] Several third crossbeams 5 are provided between the two second crossbeams 4. The two ends of the third crossbeams 5 are respectively connected to the two second crossbeams 4, and the third crossbeams 5 are perpendicular to the second crossbeams 4.

[0038] Based on the above, the third crossbeam 5 is parallel to the first crossbeam 3;

[0039] Mounting lugs 6 are fixedly installed at the upper end of the connection between the first crossbeam 3 and the second crossbeam 4, the lower end of the connection between the first crossbeam 3 and the second crossbeam 4, and the lower end of the connection between the second crossbeam 4 and the third crossbeam 5.

[0040] The prefabricated bridge deck system lifting equipment has lifting lugs 6 at the upper end of the connection between the first crossbeam 3 and the second crossbeam 4, the lower end of the connection between the first crossbeam 3 and the second crossbeam 4, and the lower end of the connection between the second crossbeam 4 and the third crossbeam 5, forming a three-dimensional lifting point network. The combination of lifting points can be flexibly selected according to the geometry and center of gravity of the bridge deck components to achieve uniform load distribution, effectively avoid local stress concentration, and reduce the risk of deformation of the lifting equipment or damage to the components. It is especially suitable for the high-precision lifting requirements of large-span or irregular bridge decks.

[0041] In addition, the fixed connection between the second crossbeam 4 and the first crossbeam 3, and between the third crossbeam 5 and the first crossbeam 3, can be made by welding, which can ensure the strength and fatigue resistance of key stress nodes.

[0042] This prefabricated bridge deck hoisting system, through its innovative three-dimensional hoisting point layout and high-strength structure, combines high load-bearing capacity, high adaptability, and high durability. It can meet the technical requirements of complex hoisting scenarios in modern bridge engineering and provide a reliable guarantee for efficient and safe construction.

[0043] like Figures 1 to 5 As shown, in some embodiments of this utility model, the number of third crossbeams 5 is not less than 2;

[0044] The system is equipped with at least two third crossbeams 5 to ensure that at least two independent force transmission paths are formed inside the lifting equipment. This layout avoids cascading structural failures caused by overload or damage to a single third crossbeam 5, significantly improving the overall redundancy and fault tolerance of the lifting equipment. Especially during heavy bridge deck lifting, multiple third crossbeams 5 can work together to share the load, preventing local stress from exceeding limits and further ensuring the safety of the lifting process.

[0045] In addition, the lower ends of the connection between the second crossbeam 4 and the third crossbeam 5 are fixedly installed with lifting lugs 6. The lifting lugs 6 are directly aligned with the weak mechanical area of ​​the lifting device, forming a directional reinforcement effect, thereby optimizing the load transfer path and reducing the risk of structural deformation during the lifting process.

[0046] like Figures 1 to 5 As shown, in some embodiments of this utility model, the mounting lug 6 includes a base plate 61 and an ear plate 62 fixedly installed at the top center of the base plate 61, and the base plate 61 and the ear plate 62 are perpendicular to each other, and the ear plate 62 has a lifting hole 63 on its side.

[0047] A reinforcing plate 64 is fixedly installed on the center of both the left and right sides of the ear plate 62;

[0048] A second lifting hole 65 is provided on the reinforcing plate 64 at the position corresponding to the first lifting hole 63. The second lifting hole 65 is connected to the first lifting hole 63, and the second lifting hole 65 and the first lifting hole 63 are concentrically set. The diameters of the second lifting hole 65 and the first lifting hole 63 can be basically the same.

[0049] A second reinforcing plate 66 is fixedly installed at the lower end of the left and right sides of the ear plate 62, and the bottom of the second reinforcing plate 66 is fixedly installed on the base plate 61.

[0050] There are two reinforcing plates 266, which are arranged opposite to each other;

[0051] By symmetrically setting reinforcing plates 64 with lifting holes 65 on both sides of the ear plate 62, a double-plate clamping support structure is formed, significantly improving the shear resistance of the lifting hole 63 area. The design of the lifting hole 65 achieves stress dispersion while maintaining structural integrity, effectively preventing cracking around the lifting hole.

[0052] An array of reinforcing plates 66 arranged on the lower side of the ear plate 62 forms a trapezoidal support frame with the base plate 61. The load is transferred in a gradient manner through at least two equidistant reinforcing plates 66. This design reduces the maximum stress value, improves the uniformity of stress distribution, and avoids the base deformation problem caused by traditional single-point support.

[0053] Lifting hole 2 65 and lifting hole 1 63 form a concentric circle structure, which generates a synergistic deformation effect when subjected to oscillating loads, and can absorb more dynamic impact energy compared with traditional solid reinforcing plates. Combined with the elastic support characteristics of bottom reinforcing plate 2 66, the overall structure can still maintain a stable working state under vibration environment;

[0054] Furthermore, lifting hole 2 (65) and lifting hole 1 (63) serve the dual functions of weight reduction holes and process holes, reducing structural weight while providing a reference for installation positioning. Reinforcing plate 2 (66) adopts a tapered cross-section design, ensuring support strength while avoiding stress concentration in the welds, thus extending fatigue life compared to traditional structures.

[0055] In addition, the fixing and installation methods between the base plate 61 and the ear plate 62, and between the ear plate 62 and the reinforcing plate 64, can all be welding methods;

[0056] The fixing and installation methods between the reinforcing plate 64, the ear plate 62, and the base plate 61 can all be welding.

[0057] The welding process allows for modular replacement when localized damage occurs, reducing maintenance costs.

[0058] like Figures 1 to 5 As shown, in some embodiments of this utility model, a reinforcing connector 7 is also fixedly installed at the upper end of the connection between the second crossbeam 4 and the third crossbeam 5.

[0059] The reinforcing connector 7 includes a reinforcing base plate 71 and two corner protectors 72 fixedly installed on the underside of the reinforcing base plate 71;

[0060] Two corner protectors 72 are arranged opposite each other, and the two corner protectors 72 are respectively located at the left and right ends of the bottom of the reinforcing base plate 71; the corner protector 72 includes a horizontal member 73 and a vertical member 74, the horizontal member 73 and the vertical member 74 are perpendicular to each other in an L-shape, and the horizontal member 73 and the vertical member 74 are integrally connected.

[0061] A reinforcing rib 75 is fixedly installed on the inner side of the corner of the horizontal component 73 and the vertical component 74;

[0062] The installation process of the reinforcing connector 7 is as follows: Since the second crossbeam 4 and the third crossbeam 5 are perpendicular, the connection between the second crossbeam 4 and the third crossbeam 5 forms two L-shaped bends. The two corner protectors 72 are placed into the L-shaped bends. The two corner protectors 72 form an installation cavity 76 for the third crossbeam 5. The third crossbeam 5 can be placed in the installation cavity 76. The bottom of the corner protector 72 can abut against the base plate 61 on the corresponding mounting lug 6. Specifically, the bottom of the corner protector 72 can be connected and fixed to the base plate 61 on the corresponding mounting lug 6 by welding.

[0063] The reinforced connector 7 is provided to effectively improve the strength of the connection between the second crossbeam 4 and the third crossbeam 5, thereby effectively improving the impact resistance of the connection between the second crossbeam 4 and the third crossbeam 5. It is suitable for use in heavy equipment hoisting or harsh working conditions.

[0064] like Figures 1 to 5 As shown, in some embodiments of this utility model, the distance between the first crossbeam 3 and the third crossbeam 5 is marked as d1;

[0065] The distance between the two third crossbeams 5 is marked as d2;

[0066] The ratio of d2 to d1 is 0.6-1.0;

[0067] The ratio of d2 to d1 is 0.6-1.0, and the preferred ratio of d2 to d1 is 0.8. The compact layout effectively improves the strength of the lifting device.

[0068] This utility model provides a prefabricated bridge deck lifting device. The upper end of the connection between the first crossbeam 3 and the second crossbeam 4, the lower end of the connection between the first crossbeam 3 and the second crossbeam 4, and the lower end of the connection between the second crossbeam 4 and the third crossbeam 5 are all provided with lifting lugs 6, forming a three-dimensional lifting point network. The combination of lifting points can be flexibly selected according to the geometry and center of gravity of the bridge deck components to achieve uniform load distribution, effectively avoid local stress concentration, and reduce the risk of deformation of the lifting device or damage to the components. It is especially suitable for the high-precision lifting requirements of large-span or irregular bridge decks.

[0069] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A precast bridge deck system hoist hanger, characterized by, The support frame (1) includes two first crossbeams (3) arranged opposite to each other, and two second crossbeams (4) are provided between the two first crossbeams (3). The two ends of the second crossbeams (4) are respectively connected to the two first crossbeams (3). A number of third crossbeams (5) are also provided between the two second crossbeams (4). The two ends of the third crossbeams (5) are respectively connected to the two second crossbeams (4). The upper end of the connection between the first crossbeam (3) and the second crossbeam (4), the lower end of the connection between the first crossbeam (3) and the second crossbeam (4), and the lower end of the connection between the second crossbeam (4) and the third crossbeam (5) are all provided with mounting lugs (6).

2. The assembly type bridge floor system hoisting hoist of claim 1, wherein, The number of the third crossbeam (5) shall not be less than 2.

3. The assembly type bridge floor system hoisting hoist of claim 1, wherein, The mounting lug (6) includes a base plate (61) and a lug plate (62) located at the top center of the base plate (61). The lug plate (62) has a lifting hole (63) on its side.

4. The assembly type bridge floor system hoisting hoist of claim 3, wherein, The ear plate (62) is provided with a reinforcing plate (64) in the center of the left and right sides; The reinforcing plate 1 (64) has a second lifting hole (65) at the position corresponding to the first lifting hole (63).

5. The prefabricated bridge deck lifting device according to claim 3, characterized in that, The lower ends of the left and right sides of the ear plate (62) are provided with reinforcing plates (66), and the bottom of the reinforcing plates (66) is located on the base plate (61).

6. The prefabricated bridge deck lifting device according to claim 5, characterized in that, Two reinforcing plates (66) are provided, and the two reinforcing plates (66) are arranged opposite to each other.

7. The prefabricated bridge deck lifting device according to claim 1, characterized in that, A reinforcing connector (7) is also provided at the upper end of the connection between the second crossbeam (4) and the third crossbeam (5).

8. The prefabricated bridge deck lifting device according to claim 7, characterized in that, The reinforcing connector (7) includes a reinforcing base plate (71) and two corner protectors (72) located on the underside of the reinforcing base plate (71); Two corner protectors (72) are arranged opposite each other, and the two corner protectors (72) are respectively located at the left and right ends of the bottom of the reinforcing base plate (71).

9. A prefabricated bridge deck lifting device according to claim 8, characterized in that, The corner protection component (72) includes a horizontal component (73) and a vertical component (74), which are perpendicular to each other; The inner side of the corner of the horizontal member (73) and the vertical member (74) is provided with reinforcing ribs (75).

10. A prefabricated bridge deck lifting device according to claim 1, characterized in that, The distance between the first crossbeam (3) and the third crossbeam (5) is marked as d1; The distance between the two third crossbeams (5) is marked as d2; The ratio of d2 to d1 is 0.6-1.0.

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