A bracket structure of web plate and wing plate for cast-in-place beam

Abstract

The utility model discloses a kind of bracket structure of web and wing plate for cast-in-place beam, including multiple bracket main body, and two adjacent bracket main body are connected by first connecting bar piece;Bracket main body includes upper beam, lower beam, adjustable vertical rod assembly and adjustable inclined strut rod assembly, and lower beam is fixedly installed on lower main keel crossbeam by U-type bolt;Adjustable vertical rod assembly is hingedly arranged between upper beam and lower beam, and adjustable vertical rod assembly includes first vertical rod, second vertical rod and first screw rod, and first screw rod is threadedly connected in the top of first vertical rod and second vertical rod;Adjustable inclined strut rod assembly is hingedly arranged between first vertical rod and lower beam, and adjustable inclined strut rod assembly includes multiple inclined rods and second screw rod, and second screw rod is threadedly connected in inclined rod end portion.The structure is convenient to install, saves manual cost, and the structure is simple and compact, and also has certain adjusting capacity, and overall stability is high.

Description

Technical Field

[0001] This utility model relates to the field of cast-in-place beam construction technology, specifically to a bracket structure for web and flange plates of cast-in-place beams. Background Technology

[0002] The existing support frame for the outer web and flange of the cast-in-place box girder in bridges consists of horizontal bars, vertical supports, vertical diagonal braces, reverse tie rods, top braces, steel / timber joists, formwork, and their interconnections and combinations. However, in the existing support frame scheme, each component requires on-site assembly by workers using fasteners. This results in numerous assembly points, high labor costs, and the need for multiple people to assemble the components, making quality control difficult. Furthermore, the overall construction progress is slow, with long hours spent working at heights and numerous safety hazards. Additionally, the connection between the reverse tie rods and the vertical supports compromises the overall stability of the support frame. Utility Model Content

[0003] The purpose of this utility model is to provide a bracket structure for the web and flange of a cast-in-place beam, which solves the problems of cumbersome assembly, high labor costs, and poor overall stability in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A bracket structure for the web and flange of a cast-in-place beam includes multiple bracket bodies, with adjacent bracket bodies connected by a first connecting rod. Each bracket body includes an upper beam, a lower beam, an adjustable upright assembly, and an adjustable diagonal brace assembly. The lower beam is fixedly mounted on the lower main keel crossbeam using U-bolts. The adjustable upright assembly is hinged between the upper and lower beams, and includes a first upright, a second upright, and a first threaded rod, with the first threaded rod threaded to the top of both the first and second uprights. The adjustable diagonal brace assembly is hinged between the first upright and the lower beam, and includes multiple diagonal rods and a second threaded rod, with the second threaded rod threaded to the end of the diagonal rod.

[0006] Preferably, the first and second uprights have the same structure, and multiple connecting discs are fixedly installed on both the first and second uprights.

[0007] Preferably, the lower beam is fixedly installed on the lower main keel crossbeam by U-bolts.

[0008] Preferably, three diagonal braces are provided, and the angle between the diagonal braces and the first upright is an acute angle.

[0009] Preferably, multiple support members are fixedly installed on one side of the first upright.

[0010] Preferably, both ends of the first connecting rod are connected to a connecting plate.

[0011] Preferably, an operating frame is provided on the outside of the second upright.

[0012] In this invention, adjacent bracket bodies are connected by a first connecting rod, forming a mutually supporting force system that effectively distributes loads and resists lateral displacement. Combined with the stable connection of the lower beam fixed to the lower main keel beam by U-bolts, the overall structure is more reliable in bearing the construction loads of the box girder flange and web, and can adapt to the complex stress environment in cast-in-place steel box girder construction. The connecting plate provides a fulcrum for the installation of the first connecting rod, facilitating connection.

[0013] The design of the adjustable upright assembly and adjustable diagonal brace assembly provides precise adjustment space for on-site construction: the threaded connection structure of the first and second screws can flexibly adjust the position of the upper beam and the first upright according to the actual size and slope of the box girder flange and web. By compressing the square timber, a tight fit with the box girder structure is achieved, which not only meets the support requirements under different working conditions, but also ensures construction accuracy through fine adjustment and reduces installation problems caused by dimensional deviations.

[0014] The lower beam is made of channel steel and is quickly fixed with U-bolts. The adjustable components can be adjusted without on-site cutting or welding. The setting of the second connecting rod further enhances the overall stability of the upright and reduces additional reinforcement work. At the same time, the staggered bracket structure can accurately match the spatial position relationship between the web and flange of the steel box girder, reducing the adaptability requirements of the construction site, significantly shortening the installation period, and saving labor and material costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model under construction conditions;

[0016] Figure 2 This is a schematic diagram showing the connection state between the bracket body and the first connecting rod of this utility model;

[0017] Figure 3 This is a schematic diagram of the first upright structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lower beam structure of this utility model;

[0019] In the diagram: 1. Bracket body; 2. First connecting rod; 3. Lower main keel crossbeam; 4. Second connecting rod; 5. Support component; 6. Connecting plate; 7. Operating frame; 8. U-bolt; 10. Upper beam; 11. Lower beam; 12. Adjustable upright assembly; 13. Adjustable diagonal brace assembly; 70. External support upright; 71. Horizontal tie rod; 72. Diagonal reinforcing rod; 73. Scaffold board; 120. First upright; 121. Second upright; 122. First threaded rod; 130. Diagonal brace; 131. Second threaded rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The diagram illustrates a bracket structure for the web and flange of a cast-in-place beam, comprising multiple bracket bodies 1. Adjacent bracket bodies 1 are connected by a first connecting rod 2 and a connecting plate 6. The first connecting rod 2 consists of multiple steel rods hinged to adjacent bracket bodies 1. The first connecting rod 2 ensures that adjacent bracket bodies 1 support each other, improving structural stability. Several bracket bodies 1 are spaced apart along the length of the beam.

[0022] The bracket body 1 includes an upper beam 10, a lower beam 11, an adjustable upright assembly 12, and an adjustable diagonal brace assembly 13. The lower beam 11 is fixedly installed on the lower main keel crossbeam 3 by U-bolts 8. In this embodiment, the lower beam 11 is fixedly installed on the top of the lower main keel crossbeam 3 by U-bolts 8, and the lower beam 11 is made of channel steel. A rubber pad is provided between the lower beam 11 and the lower main keel crossbeam 3, and is tightened by U-bolts 8 and a pressure plate. The rubber pad can increase the friction between the two and counteract the lateral thrust of the concrete.

[0023] The adjustable upright assembly 12 is hinged between the upper beam 10 and the lower beam 11. The adjustable upright assembly 12 includes a first upright 120, a second upright 121 and a first threaded rod 122. The first threaded rod 122 is threaded to the top of both the first upright 120 and the second upright 121. During actual installation, multiple square timbers are placed between the top of the upper beam 10 and the box girder flange. By adjusting the first threaded rod 122 at the top of the first upright 120 and the second upright 121, the upper beam 10 presses the square timbers against the bottom of the box girder flange.

[0024] The first upright 120 and the second upright 121 have the same structure. Multiple connecting discs 6 are fixedly installed on both the first upright 120 and the second upright 121. The end of the first connecting rod 2 or the second connecting rod 4 is quickly assembled and connected to the connecting disc 6, which is convenient for disassembly.

[0025] The adjustable diagonal brace assembly 13 is hinged between the first upright 120 and the lower beam 11. The adjustable diagonal brace assembly 13 includes multiple diagonal braces 130 and a second lead screw 131, with the second lead screw 131 threadedly connected to the end of each diagonal brace 130. In this embodiment, three diagonal braces 130 are provided, and the included angles between the three diagonal braces 130 and the first upright 120 are all acute angles. During actual installation, multiple square timbers are placed between the outer side of the first upright 120 and the web of the box girder. By adjusting the second lead screw 131 at the top of the diagonal brace 130, the first upright 120 presses the square timbers against the outer side of the box girder web.

[0026] A second connecting rod 4 is fixedly installed between the first upright 120 and the second upright 121, which improves the support stability of the first upright 120 and the second upright 121.

[0027] Multiple support members 5 are fixedly installed on one side of the first upright 120. The support members 5 are angle steel and are used to provide support for the installation of square timber. The width of the support member 5 is no more than three-quarters of the thickness of the square timber. When supporting the web of the box girder, the support member 5 does not contact the web of the box girder.

[0028] An operating frame 7 is installed on the outside of the second upright 121. The operating frame 7 includes an outer support upright 70, horizontal tie rods 71, diagonal reinforcing rods 72, and scaffold boards 73. The bottom of the outer support upright 70 is fixedly installed on the lower main keel beam 3. Multiple horizontal tie rods 71 ​​are fixedly connected to the outer support upright 70 and the second upright 121. The scaffold boards 73 are fixedly installed on the horizontal tie rods 71, providing operating space for the operators. The two ends of the diagonal reinforcing rods 72 are fixedly connected to the outer support upright 70 and the second upright 121, respectively. The top of the outer support upright 70 is higher than the cast-in-place beam. Several outer support uprights 70 are connected by a protective net to serve as edge protection during the construction of the cast-in-place beam.

[0029] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. A bracket structure for web and flange of a cast-in-place beam, characterized in that: The system includes multiple bracket bodies (1), with adjacent bracket bodies (1) connected by a first connecting rod (2). Each bracket body (1) includes an upper beam (10), a lower beam (11), an adjustable upright assembly (12), and an adjustable diagonal brace assembly (13). The lower beam (11) is fixedly installed on the lower main keel crossbeam (3). The adjustable upright assembly (12) is hinged between the upper beam (10) and the lower beam (11), and the adjustable upright assembly (12) includes a first upright (120). The first vertical rod (121) and the first lead screw (122) are threadedly connected to the top of the first vertical rod (120) and the second vertical rod (121); the adjustable diagonal brace assembly (13) is hinged between the first vertical rod (120) and the lower beam (11). The adjustable diagonal brace assembly (13) includes multiple diagonal rods (130) and the second lead screw (131), and the second lead screw (131) is threadedly connected to the end of the diagonal rod (130).

2. The bracket structure for the web and flange of a cast-in-place beam according to claim 1, characterized in that: The first upright (120) and the second upright (121) have the same structure, and multiple connecting discs (6) are fixedly installed on both the first upright (120) and the second upright (121).

3. The bracket structure for the web and flange of a cast-in-place beam according to claim 1 or 2, characterized in that: The lower beam (11) is fixedly installed on the lower main keel crossbeam (3) by U-bolts.

4. The bracket structure for the web and flange of a cast-in-place beam according to claim 3, characterized in that: Three diagonal braces (130) are provided, and the angle between the diagonal braces (130) and the first upright (120) is an acute angle.

5. The bracket structure for the web and flange of a cast-in-place beam according to claim 1, 2, or 4, characterized in that: Multiple support members (5) are fixedly installed on one side of the first upright (120).

6. The bracket structure for the web and flange of a cast-in-place beam according to claim 2, characterized in that: The two ends of the first connecting rod (2) are respectively connected to a connecting plate (6).

7. The bracket structure for the web and flange of a cast-in-place beam according to claim 1, characterized in that: An operating frame (7) is installed on the outside of the second upright (121).

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