Full bailey beam support for overwater cast-in-place box beam

Abstract

The utility model relates to a full bailey beam support for an overwater cast-in-place box beam. The problem that a river-crossing full support limits water surface transportation is effectively solved. According to the technical scheme, the device comprises steel pipe piles, lower-layer I-shaped steel, Bailey beams, upper-layer I-shaped steel and a full framing, the lower-layer I-shaped steel is arranged and installed at the upper ends of the steel pipe piles, the Bailey beams are vertically arranged and installed on the lower-layer I-shaped steel, the upper-layer I-shaped steel is arranged and installed on the Bailey beams, and the upper-layer I-shaped steel and the lower-layer I-shaped steel are parallel and perpendicular to the Bailey beams. The full framing is erected on the upper-layer I-shaped steel; through the combination of the structure of the full framing and the Bailey structure, the water surface transportation channel is reserved below the river-crossing full framing, and meanwhile, the early warning device is additionally arranged, so that the safety of the framing body can be fully guaranteed in the using process.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction, in particular to a full-bridge Bailey beam bracket used for a cast-in-place box beam on water. Background Art

[0002] With the acceleration of urban modernization, the demand for transportation facilities construction is constantly increasing. In municipal and rail transit construction, more and more projects use disc-type full-span scaffolding for the construction of cast-in-place beams across rivers. Affected by the erection of full-span scaffolding in rivers, as well as the difficulties in the passage of materials, personnel, and ships, they cannot pass smoothly, which causes great troubles to the on-site construction organization and management.

[0003] The traditional disc-type full-span support is generally more convenient to set up on the ground, but it will bring difficulties to the construction in the water due to the influence of water level and other factors. In addition, the existing transportation channel has a complex structure when designing the full-span support, which is inconvenient to operate on site and is not convenient for actual use in water construction. Summary of the invention

[0004] The utility model provides a full-bridge Bailey beam support for a cast-in-place box beam on water, aiming to solve the problem that the full-bridge support across the river restricts water surface transportation.

[0005] The technical solution includes steel pipe piles, lower I-beams, Bailey beams, upper I-beams and full-height brackets. The lower I-beams are installed on the upper ends of the steel pipe piles, the Bailey beams are vertically installed on the lower I-beams, the upper I-beams are installed on the Bailey beams, the upper I-beams and the lower I-beams are parallel and perpendicular to the Bailey beams, and the full-height brackets are erected on the upper I-beams.

[0006] It also includes an early warning device, which includes a positive plate, a negative plate and an alarm. The alarm is connected to the circuit of the positive plate and the negative plate. The positive plate and the negative plate are parallel to the Bailey beam and both ends are supported on steel pipe piles. The positive plate is attached to the bottom of the Bailey beam, and the negative plate is located directly below the positive plate, and the negative plate is in an arc shape.

[0007] A plurality of vertical thin wires are connected between the positive electrode plate and the negative electrode plate, and the thin wires are used as position references when installing the negative electrode plate.

[0008] The full hall is composed of vertical poles, horizontal poles and oblique poles. The lower end of the vertical pole is provided with a height-adjusting base, and the upper end of the vertical pole is provided with a height-adjusting top support.

[0009] Adjacent Bailey beams are connected by scissor braces.

[0010] The utility model combines the structure of the full-chamber bracket and the Bailey structure, retains a water surface transportation channel under the cross-river full-chamber bracket, and adds an early warning device, so that the frame can be fully guaranteed to be safe during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model.

[0012] Figure 2 It is a left view of the utility model.

[0013] Figure 3 This is the front view of the early warning device.

[0014] Figure 4 for Figure 1 Enlarged view of position A in the middle.

[0015] Figure 5 for Figure 1 Enlarged view of position B in the middle. DETAILED DESCRIPTION

[0016] In conjunction with the accompanying drawings, the utility model includes a steel pipe pile 1, a lower I-beam 2, a Bailey beam 3, an upper I-beam 4 and a full-bridge bracket 5. Part of the steel pipe pile 1 is installed on the existing abutment, and part of it is inserted into the riverbed. The width of the transportation channel is controlled by the arrangement position of the steel pipe pile 1. The lower I-beam 2 is installed in a row at the upper end of the steel pipe pile 1. The Bailey beam 3 is vertically installed on the lower I-beam 2. The upper I-beam 4 is installed in a row on the Bailey beam 3. The upper I-beam 4 and the lower I-beam 2 are parallel and perpendicular to the Bailey beam 3. The Bailey beam 3 and the I-beam are fastened by buckles. The full-bridge bracket 5 is erected on the upper I-beam 4, and the box beam template is supported above the full-bridge bracket 5.

[0017] It also includes an early warning device 6, which includes a positive plate 7, a negative plate 8 and an alarm 9. The alarm 9 is connected to the circuit of the positive plate 7 and the negative plate 8. The positive plate 7 and the negative plate 8 are parallel to the Bailey beam 3 and both ends are supported on the steel pipe pile 1. The positive plate 7 is adhered to the bottom of the Bailey beam 3 by a high-strength silicone adhesive, and the negative plate 8 is located directly below the positive plate 7, and the negative plate 8 is in an arc shape. When the Bailey beam 3 is deformed, the positive plate 7 will deform synchronously with the Bailey beam 3. When the deformation reaches the alarm value, the positive plate 7 contacts the negative plate 8, and the circuit of the alarm 9 is connected to alarm.

[0018] A plurality of vertical thin wires 10 are connected between the positive plate 7 and the negative plate 8. The thin wires 10 serve as a position reference when installing the negative plate 8. The distance and position between the negative plate 8 and the positive plate 7 can be conveniently adjusted by taking the length of the thin wires 10 at different positions as a reference.

[0019] The full hall is composed of vertical poles, horizontal poles and diagonal poles. The rods are connected by pins. Connecting rods are also arranged between the vertical poles, and the connecting rods are connected to the vertical poles by cross fasteners. A height-adjusting base 11 is provided at the lower end of the vertical pole, and a height-adjusting top support 12 is provided at the upper end of the vertical pole. Both the adjustable base and the adjustable top support adopt a screw height-adjusting structure. The functions of the base and the top support are to ensure the stability of the overall structure.

[0020] Adjacent Bailey beams 3 are connected by scissor braces 13 to increase structural stability.

[0021] The construction process of this utility model is as follows:

[0022] 1. Insert and drive the steel pipe columns. The steel pipe columns at both ends of the bracket are located on the existing abutments, and the others are directly inserted and driven on the riverbed.

[0023] 2. Double-piece I-beams are evenly arranged on the steel pipe columns, i.e., the lower I-beam 2 is used as a crossbeam, Bailey beams 3 are arranged perpendicularly and evenly on the lower I-beam 2, and upper I-beams 4 are arranged perpendicularly and evenly on the Bailey beams 3. The spacing of the upper I-beams 4 is consistent with the spacing of the vertical poles of the full-height bracket 5. The Bailey beams 3 and the upper and lower I-beams are fastened with buckles, and adjacent Bailey beams 3 are connected with scissors struts 13; the two adjacent steel pipe piles before and after the door opening are connected with a Z-shaped steel pipe, and the cross bar of the full-height bracket is connected to the steel pipe piles at the door opening with fasteners to ensure overall stability.

[0024] 3. According to the drawings, erect full-floor brackets 5 on the upper I-beams 4 in accordance with the requirements for erecting ordinary disc-shaped brackets, and at the same time carry out reinforcement construction tests. According to the on-site frame usage, install the early warning device 6. After ensuring that the previous matters are carried out safely and smoothly, finally carry out construction tests.

[0025] The utility model uses a full-span bracket 5 and a Bailey beam 3 in combination, and reserves a transportation channel under the full-span bracket 5, which solves the limitation of the full-span bracket 5 when constructing a cast-in-place beam on water, and meets the passage needs of materials, personnel, ships, water flow, etc. The transportation channel in the bracket has a simple structure, and the construction safety risk is relatively small. The construction and installation are efficient and convenient, the operation is simple, the construction cost is low, and the construction period can be saved, which provides a guarantee for completing the work on time. The I-beams added in the transportation channel can be recycled and utilized after use, which is energy-saving and environmentally friendly. At the same time, in the project where the bracket is used, when the deformation of the frame reaches a certain value, an early warning can be provided to ensure the safety of the construction process.

Claims

1. A full-bridge Bailey beam support for cast-in-place box beams on water, characterized in that: The invention comprises a steel pipe pile (1), a lower I-beam (2), a Bailey beam (3), an upper I-beam (4) and a full-height bracket (5), wherein the lower I-beam (2) is installed on the upper end of the steel pipe pile (1), the Bailey beam (3) is installed vertically on the lower I-beam (2), the upper I-beam (4) is installed on the Bailey beam (3), the upper I-beam (4) and the lower I-beam (2) are parallel and perpendicular to the Bailey beam (3), and the full-height bracket (5) is erected on the upper I-beam (4).

2. A full-bridge Bailey beam support for a cast-in-place box beam on water according to claim 1, characterized in that: The device also includes an early warning device (6), which includes a positive plate (7), a negative plate (8) and an alarm (9). The alarm (9) is connected to the circuit of the positive plate (7) and the negative plate (8). The positive plate (7) and the negative plate (8) are parallel to the Bailey beam (3) and both ends are supported on the steel pipe pile (1). The positive plate (7) is attached to the bottom of the Bailey beam (3), and the negative plate (8) is located directly below the positive plate (7), and the negative plate (8) is in a drooping shape.

3. A full-bridge Bailey beam support for a cast-in-place box beam on water according to claim 2, characterized in that: A plurality of vertical thin wires (10) are connected between the positive electrode plate (7) and the negative electrode plate (8), and the thin wires (10) serve as a position reference when installing the negative electrode plate (8).

4. A full-bridge Bailey beam support for a cast-in-place box beam on water according to claim 1, characterized in that: The full hall is composed of vertical poles, horizontal poles and diagonal poles. The lower end of the vertical pole is provided with a height-adjusting base (11), and the upper end of the vertical pole is provided with a height-adjusting top support (12).

5. A full-bridge Bailey beam support for a cast-in-place box beam on water according to claim 1, characterized in that: Adjacent Bailey beams (3) are connected via scissor braces (13).

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