Tower beam consolidation area of single-tower wide cast-in-place box beam

Abstract

The utility model relates to a single-tower wide cast-in-place box girder tower girder consolidation area. The single-tower wide cast-in-place box girder tower girder consolidation area comprises a bearing platform, a water bag fixing chessboard type steel frame, a top plate detachable track laser ultrasonic double-system paving system and a wide cast-in-place box girder movable formwork. The utility model has the beneficial effects that the embedded hole is formed in the bearing platform, and the embedded steel plate group in the embedded hole is provided with the micro concave surface, so that the welding efficiency of the steel pipe pile and the embedded steel plate group can be improved, a good supporting effect is achieved, and the potential safety hazard of construction is reduced; the water bags are fixed through the water bag fixing chessboard type steel frame, the water bag fixing chessboard type steel frame has good applicability to a construction site with abundant water resources, and the chessboard type steel frame has high overall rigidity and can well fix the water bags at the same time; the top plate detachable track laser ultrasonic dual-system paving system is high in automation degree, labor is greatly saved, and the characteristics and requirements of circular economy can be met by recycling the detachable track.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridges, and in particular comprises a single-tower wide-width cast-in-place box girder tower-beam consolidation zone. Background Art

[0002] With the continuous development of urbanization and the continuous increase in traffic demand, more and more wide cast-in-place box girders are used in urban road construction. In the construction process of wide cast-in-place box girders, problems such as tower-beam consolidation zone construction, difficulty in setting up mobile formwork, unreasonable preloading method, and poor bridge deck flatness are often encountered, which largely restricts the development and promotion of wide cast-in-place box girder bridges. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a single-tower wide-width cast-in-place box girder tower-beam consolidation zone.

[0004] The tower-beam consolidation area of ​​this single-tower wide-width cast-in-place box girder includes a cap, a chessboard-style steel frame fixed with water bags, a removable track laser-ultrasonic dual-system paving system for the top plate, and a mobile formwork for the wide-width cast-in-place box girder;

[0005] Steel pipe columns and piers are installed on the cap, the tops of the steel pipe columns and piers are supported by bottom formwork, and cast-in-place box beams are cast on the tops of the piers;

[0006] The top plate detachable track laser ultrasonic dual system paving system is equipped with a detachable track system on the top, and an I-beam track is arranged on the detachable track system; the wide-width cast-in-place box girder mobile formwork includes a support system and a mobile structure system, the support system includes a steel cross-beam, the mobile structure system is arranged on the steel cross-beam, and the mobile structure system is provided with an I-beam distribution beam, a side beam and a middle beam.

[0007] Preferably, a pre-embedded hole is made on the base, and a pre-embedded steel plate group is arranged on the base. The pre-embedded steel plate group of the pre-embedded hole is provided with a micro-concave surface, and the bottom end of the steel pipe column is fixed in the pre-embedded hole.

[0008] Preferably, steel cross bars, scissor braces and diagonal brace brackets are provided between the steel tube columns, and transverse I-beams, square timbers and bottom formwork are installed in sequence on the steel tube columns and piers.

[0009] Preferably, the checkerboard steel frame for fixing the water bag includes steel pipe cross beams, steel pipe longitudinal beams, steel pipe columns and channel steel diagonal braces. The steel pipe cross beams and steel pipe longitudinal beams intersect vertically and horizontally, and the steel pipe columns and channel steel diagonal braces are arranged in the vertical direction.

[0010] Preferably, a top plate detachable track laser ultrasonic dual system paving system includes guardrails, vertical force reinforcement, transverse force reinforcement and a detachable track system; the detachable track system includes embedded supporting vertical steel pipes, top supports and I-beam tracks.

[0011] Preferably, the wide-width cast-in-place box girder mobile formwork includes a support system and a mobile structural system. The support system is arranged on the pedestal, including steel pipe columns, support reinforcement steel plates, scissors braces, steel transverse tie beams, steel transverse tie beam brackets, I-beam distribution beams, side beams and middle beams, and the steel transverse tie beams are arranged between the steel pipe columns; the mobile structural system is arranged on the steel transverse tie beams, including a movable formwork frame, transverse sliding jacks, telescopic rods, sliding rods and longitudinal rolling wheels.

[0012] The beneficial effects of the utility model are:

[0013] 1) The utility model provides embedded holes on the cap, and the embedded steel plate groups in the embedded holes are provided with micro-concave surfaces, which can improve the welding efficiency of the steel pipe piles and the embedded steel plate groups, and has a good supporting effect, reducing the safety hazards of construction.

[0014] 2) The utility model fixes the water bag by fixing the chessboard-type steel frame, which has good applicability to construction sites with abundant water resources. The chessboard-type steel frame has strong overall rigidity and can also better fix the water bag.

[0015] 3) The top plate detachable track laser ultrasonic dual system paving system designed in the utility model has a high degree of automation, greatly saves labor, and can meet the characteristics and requirements of the circular economy by recycling the detachable track.

[0016] 4) The utility model provides a wide cast-in-place box girder mobile formwork for cast-in-place box girder construction, which is convenient to construct, simple to operate, and has good technical and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall pre-buried system structure of the main tower cap steel plate group;

[0018] Figure 2 It is a schematic diagram of the bottom formwork of the steel pipe column and the pier top support;

[0019] Figure 3 A schematic diagram of a chessboard-style steel frame for fixing water bags;

[0020] Figure 4 A front view of the chessboard steel frame for fixing water bags;

[0021] Figure 5 A schematic side view of a chessboard-style steel frame for fixing water bags;

[0022] Figure 6 This is a schematic diagram of the top plate detachable track laser ultrasonic dual system paving system architecture;

[0023] Figure 7It is a schematic diagram of the side structure of the detachable top plate track laser ultrasonic dual system paving system;

[0024] Figure 8 Schematic diagram of the mobile formwork structure for wide cast-in-place box girders.

[0025] Explanation of the reference numerals in the accompanying drawings: 1 pedestal, 2 embedded holes, 3 embedded steel plate group, 4 slightly concave surface, 5 steel pipe column, 6 steel cross bar, 7 scissors brace, 8 diagonal brace bracket, 9 pier, 10 transverse I-beam, 11 square timber, 12 bottom formwork, 13 steel pipe crossbeam, 14 steel pipe longitudinal beam, 15 steel pipe column, 16 channel steel diagonal brace, 17 guardrail, 18 vertical force reinforcement, 19 transverse force reinforcement, 20 embedded supporting vertical steel pipe, 21 top support, 22 I-beam track, 23 bearing reinforcement steel plate, 24 longitudinal rolling wheel, 25 transverse sliding jack, 26 telescopic rod, 27 steel transverse tie beam, 28 steel transverse tie beam bracket, 29 movable formwork frame, 30 side beam, 31 I-beam distribution beam, 32 middle beam, 33 sliding rod, 34 cast-in-place box beam, 35 bearing. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0027] As an example, Figures 1 to 8 As shown, the tower-beam consolidation area of ​​this single-tower wide-width cast-in-place box girder includes an overall pre-buried system of the main tower pedestal steel plate group, a temporary system for steel pipe column installation, straightening and adjustment, a standardized bracket fixing water bag pre-loading system, a top plate detachable track laser ultrasonic dual-system paving system and a wide-width cast-in-place box girder mobile formwork casting system.

[0028] Steel pipe columns 5 and piers 9 are installed on the cap 1, the tops of the steel pipe columns 5 and piers 9 support bottom formwork 12, and a cast-in-place box beam 34 is cast on the top of the pier 9;

[0029] The top plate detachable track laser ultrasonic dual system paving system is provided with a detachable track system on the top, and an I-beam track 22 is arranged on the detachable track system; the wide-width cast-in-place box girder mobile formwork includes a support system and a mobile structure system, the support system includes a steel transverse tie beam 27, the mobile structure system is arranged on the steel transverse tie beam 27, and an I-beam distribution beam 31, a side beam 30 and a middle beam 32 are arranged on the mobile structure system.

[0030] like Figure 1As shown, the overall embedded system of the steel plate group of the main tower foundation is firstly constructed with embedded holes 2 on the foundation 1. During the construction, embedded steel plate groups 3 are preset. Micro-concave surfaces 4 are arranged in the holes of the embedded steel plate groups 3 so that they can be easily closed later. The bottom ends of the steel pipe columns 5 are fixed in the embedded holes 2.

[0031] like Figure 2 As shown, a temporary system for straightening and adjusting the steel pipe column installation is firstly welded and fixed on the pedestal 1, and a pre-buried steel plate group 3 is preset on the pedestal 1 during construction; during installation, a steel cross bar 6, a scissor brace 7 and a diagonal brace bracket 8 are provided on the steel pipe column 5, and then a transverse I-beam 10, a square timber 11 and a bottom formwork 12 are installed on the steel pipe column 5 and the pier 9.

[0032] like Figure 3 , Figure 4 , Figure 5 As shown, the standardized bracket fixed water bag preloading system includes a water bag fixed chessboard steel frame, and the water bag fixed chessboard steel frame includes a steel pipe cross beam 13, a steel pipe longitudinal beam 14, a steel pipe column 15 and a channel steel diagonal brace 16. The steel pipe cross beam 13 and the steel pipe longitudinal beam 14 intersect vertically and horizontally in the horizontal direction, and are composed of the steel pipe cross beam 13 and the steel pipe longitudinal beam 14 intersecting vertically and horizontally in the horizontal direction and the steel pipe column 15 and the channel steel diagonal brace 16 in the vertical direction.

[0033] like Figure 6 , Figure 7 As shown, the top plate detachable track laser ultrasonic dual system paving system includes a guardrail 17, vertical force reinforcement 18, transverse force reinforcement 19 and a detachable track system; the detachable track system is composed of pre-buried supporting vertical steel pipes 20, top supports 21 and I-beam tracks 22.

[0034] like Figure 8 As shown, the wide cast-in-place box beam mobile formwork casting system includes piers 9, bearings 35, cast-in-place box beams 34, support systems and mobile structural systems. The support system is set on the pedestal 1, and consists of steel pipe columns 5, bearing reinforcement steel plates 23, scissor braces 7, steel transverse tie beams 27, steel transverse tie beam brackets 28, I-beam distribution beams 31, side beams 30 and middle beams 32. The steel transverse tie beams 27 are set between the steel pipe columns 5; the mobile structural system is set on the steel transverse tie beams 27, including a movable formwork frame 29, a transverse sliding jack 25, a telescopic rod 26, a sliding rod 33 and a longitudinal rolling wheel 24.

Claims

1. A single-tower wide cast-in-place box girder tower-beam consolidation zone, characterized in that: It includes the cap, water bag fixed chessboard steel frame, top plate detachable track laser ultrasonic dual system paving system and wide cast-in-place box beam mobile formwork; Steel pipe columns and piers are installed on the cap, the tops of the steel pipe columns and piers are supported by bottom formwork, and cast-in-place box beams are cast on the tops of the piers; The top plate detachable track laser ultrasonic dual system paving system is equipped with a detachable track system on the top, and an I-beam track is arranged on the detachable track system; the wide-width cast-in-place box girder mobile formwork includes a support system and a mobile structure system, the support system includes a steel cross-beam, the mobile structure system is arranged on the steel cross-beam, and the mobile structure system is provided with an I-beam distribution beam, a side beam and a middle beam.

2. The single-tower wide cast-in-place box girder tower beam consolidation zone according to claim 1 is characterized in that: An embedded hole is made on the cap, and an embedded steel plate group is arranged on the cap. The embedded steel plate group of the embedded hole is provided with a micro-concave surface, and the bottom end of the steel pipe column is fixed in the embedded hole.

3. The single-tower wide cast-in-place box girder tower beam consolidation zone according to claim 1 is characterized in that: Steel cross bars, scissor braces and diagonal brace brackets are arranged between the steel pipe columns, and transverse I-beams, square timbers and bottom formwork are installed on the steel pipe columns and piers in sequence.

4. The single-tower wide cast-in-place box girder tower beam consolidation zone according to claim 1 is characterized in that: The chessboard-like steel frame for fixing the water bag includes steel tube cross beams, steel tube longitudinal beams, steel tube columns and channel steel diagonal braces. The steel tube cross beams and steel tube longitudinal beams intersect vertically and horizontally, and the steel tube columns and channel steel diagonal braces are arranged in the vertical direction.

5. The single-tower wide cast-in-place box girder tower beam consolidation zone according to claim 1 is characterized in that: The top plate detachable track laser ultrasonic dual system paving system includes guardrails, vertical force reinforcement, transverse force reinforcement and a detachable track system; the detachable track system includes pre-buried supporting vertical steel pipes, top supports and I-beam tracks.

6. The single-tower wide cast-in-place box girder tower beam consolidation zone according to claim 1, characterized in that: The mobile formwork of the wide cast-in-place box girder includes a support system and a mobile structural system. The support system is arranged on the pedestal, including steel pipe columns, support reinforcement steel plates, scissors braces, steel transverse tie beams, steel transverse tie beam brackets, I-beam distribution beams, side beams and middle beams. The steel transverse tie beams are arranged between the steel pipe columns; the mobile structural system is arranged on the steel transverse tie beams, including a movable formwork frame, transverse sliding jacks, telescopic rods, sliding rods and longitudinal rolling wheels.

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