Backward moving method for bottom basket of suspended casting hanging basket
By setting up screws and hanging beams on the side walls of the concrete continuous box beam and driving the spreader to move along the hanging beam, the cumbersome and difficult problems in the backward movement of the bottom basket of the hanging basket is solved, and more efficient construction operations are achieved.
Patent Information
- Application Number
- CN202411887525.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-11
AI Technical Summary
The prior art has cumbersome system conversion and movement difficulties in the backward movement of the bottom basket of the suspended hanging basket, especially when encountering cable-stayed bridges or other structures.
By setting up ventilation holes for the screw to pass through on the side walls of the concrete continuous box beam, and setting up a hanging beam along the length direction. The screw is connected to the hanging beam, and the hanging beam is movably connected to the suspender, and the suspender is connected to the suspender and the bottom basket. After the original suspension system is removed, the suspender is driven to move along the suspender beam to achieve the backward movement of the bottom basket.
This method simplifies the backward movement process of hanging the bottom basket, avoids external obstacles, and improves construction efficiency.
Smart Images
Figure CN119593318A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a method for moving a bottom basket of a suspended pouring basket backwards. Background Art
[0002] Prestressed concrete continuous beams or continuous rigid frames widely use hanging baskets for cantilever casting construction. The so-called hanging basket construction refers to the use of hanging baskets to perform on-site segmented cantilever operations when casting cantilever beam bridges. It does not require the erection of brackets and does not use large cranes. After the concrete continuous beam or continuous rigid frame is closed, the bottom basket of the hanging basket is usually lowered to the ground in the closed section or the cantilevered section adjacent to the closed section, and then the hanging basket truss and other systems are deleted. However, if the closed section or the cantilevered section adjacent to the closed section is below a highway, railway, busy urban road, or a river or lake without transport ships, or a canal with high requirements for water quality protection, the hanging basket needs to be retreated or moved forward to an appropriate position. When the hanging basket moves, the bottom basket of the hanging basket is usually suspended by the hangers and slings on the outside of the flange plates on both sides of the concrete beam. However, when the hanging basket encounters the cable of the cable-stayed bridge or other structures of the bridge during its movement, the hanging basket cannot be moved according to the above-mentioned conventional method. It is necessary to weld cantilever beams on the flange plates on both sides of the bridge deck or to set up shoulder beams with outriggers on both sides of the bridge deck and other structures to re-establish the hanging system of the bottom basket of the hanging basket. After many tedious system conversions, the movement of the hanging basket can be realized. Summary of the invention
[0003] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and provide a convenient and quick method for moving the bottom basket of a suspended pouring basket backwards.
[0004] The technical scheme adopted by the present invention is: a method for moving the bottom basket of a suspended casting hanging basket backward, the two side walls of the concrete continuous box beam are provided with ventilation holes for the screw rod to pass through, and hanging beams are respectively provided on both sides along the length direction of the concrete continuous box beam, and the two ends of the screw rod respectively pass through the hanging beam and are threadedly connected to nuts, and the nuts are tightened to fix the hanging beam on the side wall of the concrete continuous box beam; the hanging beam is movably connected to a hanger, the hanger is kept connected to one end of the hanging rod, and the other end of the hanging rod is kept connected to the bottom basket; after the bottom basket is connected to the hanging beam through the hanging rod, the original suspension system between the truss of the hanging basket and the bottom basket is firstly dismantled, and then the hanger is driven to move along the hanging beam.
[0005] Among them, at least two hangers are arranged on a hanging beam, the two hangers are arranged at an interval, and the two hangers are fixedly connected by a hard connecting rod.
[0006] The utility model further comprises a driving device, which is connected to the sling or the hard connecting rod, and drives the sling to move.
[0007] Among them, the suspension rod is threaded steel or steel sling.
[0008] Among them, the screw is threaded steel.
[0009] The driving device may be a jack, a fall chain or an oil cylinder.
[0010] Among them, the hanging beam is an I-beam or a T-beam.
[0011] Wherein, two cushion blocks with two annular sleeves are respectively arranged on the outer sides of the side walls of the concrete continuous box beam, and the cushion blocks are arranged between the hanging beam and the side walls of the concrete continuous box beam.
[0012] Among them, the concrete continuous box girder can be replaced by a concrete continuous steel box girder.
[0013] Compared with the prior art, the beneficial effect of the present invention is that after the bottom basket in the present invention is separated from the hanging basket, its vertical force is transferred to the hanging beam, and the movement through the hanging beam will not be affected by external obstacles, thereby improving the construction work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention.
[0015] Figure 2 It is a structural schematic diagram of the present invention from a cross-sectional perspective.
[0016] Figure 3 yes Figure 2 A schematic diagram of the partial enlarged structure of part A is shown. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings and by way of embodiments.
[0018] like Figures 1 to 3As shown, the method for moving the bottom basket of the suspended cast hanging basket described in this embodiment is that the side wall 1 of the concrete continuous box girder 1 is provided with a ventilation hole 0 for the screw 4 to pass through, and the ventilation hole 0 is a ready-made through hole of the concrete continuous box girder. The screw 4 is set by using the ventilation hole 0 of the concrete continuous box girder. As a preferred embodiment, the outer side of the side wall of the concrete continuous box girder 1 is respectively provided with two pads 2 with annular sleeves, and the outer side of the two pads 2 is provided with a hanging beam 3 along the length direction of the side wall 1 of the concrete continuous box girder 1. The hanging beam 3 is an I-beam or T-shaped steel or H-shaped steel. The two ends of the screw 4 pass through the pad 2 and the hanging beam 3 respectively and are threadedly connected to the nut 5. Tighten the nut 5 to fix the two hanging beams 3 on both sides of the side wall 1 of the concrete continuous box girder 1; the hanging beam 3 is movably connected to the hanger 6, and the hanger 6 is connected to one end of the hanging rod 7, and the other end of the hanging rod 7 is connected to the bottom basket 8. When this embodiment is implemented, the bottom basket 8 is a hanging basket hung above the side wall 1 of the concrete continuous box girder 1 through the hanging rod 7. When the present invention is implemented, the hanging beam 3 is first fixed to the side wall 1 of the concrete continuous box beam 1, and then the hanger 6 is connected to the hanging beam 3, and then the bottom basket 8 is connected to the hanger 6 through the hanging rod 7. After the connection is stable, the original suspension system between the truss of the hanging basket and the bottom basket is first removed, and the gravity of the bottom basket 8 is transferred to the hanging beam 3, and then the hanger is driven to move along the hanging beam. The hanger 6 includes a U-shaped bracket 62, and two rollers 63 are rotatably arranged inside the U-shaped bracket 62. The rollers 63 contact the lower flange of the hanging beam 3 and support the hanger 6 by the lower flange. As a preferred embodiment, it also includes a driving device, which is connected to the hanger 6 or the hard connecting rod, and the driving device drives the hanger 6 to move. As a preferred embodiment, the driving device can be a jack, a fall chain, or an oil cylinder. One end of the jack is connected to the hanger 6, and the other end of the jack is connected to the hanging beam 3. The extension of the jack can push the hanger 6 to move.
[0019] As a preferred embodiment, at least two hangers 6 are provided on one hanger beam 3, the two hangers 6 are arranged at an interval, and the two hangers 6 are fixedly connected by a hard connecting rod 61. The hangers are connected as a whole by the hard connecting rod 61.
[0020] As a preferred embodiment, the suspension rod 7 is threaded steel or a steel suspension belt.
[0021] As a preferred embodiment, the screw rod 4 is threaded steel.
[0022] In this embodiment, the concrete continuous box girder can be replaced by a concrete continuous steel box girder.
Claims
1. A method for moving the bottom basket of a suspended pouring basket backwards, characterized in that the concrete The two side walls of the continuous box girder are provided with ventilation holes for the screw rods to pass through, and hanging beams are respectively provided on both sides along the length direction of the web of the concrete continuous box girder or the continuous steel structure, and the two ends of the screw rod respectively pass through the hanging beams and are threadedly connected to nuts, and the nuts are tightened to fix the hanging beams on the side walls of the concrete continuous box girder; the hanging beams are movably connected to the hangers, the hangers are connected to one end of the hanging rod, and the other end of the hanging rod is connected to the bottom basket; after the bottom basket is connected to the hanging beams through the hanging rods, the original suspension system between the truss of the hanging basket and the bottom basket is first removed, and then the hanger is driven to move along the hanging beams.
2. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, characterized in that: At least two hangers are arranged on a hanging beam, the two hangers are arranged at an interval, and the two hangers are fixedly connected by a hard connecting rod.
3. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 2, characterized in that: The utility model also comprises a driving device, which is connected with the sling or the hard connecting rod, and drives the sling to move.
4. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, characterized in that: The suspender rod is threaded steel or steel sling.
5. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, characterized in that: The screw is threaded steel.
6. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, characterized in that: The driving device can be a jack or a fall chain or a cylinder.
7. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, characterized in that: The hanging beam is an I-beam, T-beam or H-beam.
8. The method for moving the bottom basket of a suspended pouring basket backwards as claimed in claim 1, wherein the concrete Two cushion blocks with annular sleeves are respectively arranged on the outer sides of the side walls of the continuous box beam, and the cushion blocks are arranged between the hanging beam and the side walls of the concrete continuous box beam.
9. The method for moving the upper bottom basket of a hanging basket backwards as claimed in claim 1 or 8, characterized in that: Concrete continuous box girder can be replaced by concrete continuous steel box girder.