CN211171648U - Traction rope hanging basket walking device - Google Patents
Traction rope hanging basket walking device Download PDFInfo
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- CN211171648U CN211171648U CN201921724719.4U CN201921724719U CN211171648U CN 211171648 U CN211171648 U CN 211171648U CN 201921724719 U CN201921724719 U CN 201921724719U CN 211171648 U CN211171648 U CN 211171648U
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Abstract
The to-be-solved problem of the utility model is to provide a traction cable hanging basket running gear, thereby can reduce and hang the basket dead weight and accord with traction cable hanging basket design sample. Including the string basket platform that is located the bridge bottom, establish respectively that bridge lower part left and right sides detachable hangs the slide subassembly and can pull the draw gear who hangs the basket platform and remove, the upper portion of hanging the basket platform is equipped with the slide rail set spare that left and right distributes along its length direction, two slide rail set spares on left and right sides two slide rail set spares respectively sliding fit hang the slide subassembly about.
Description
Technical Field
The utility model relates to a bridge construction's guy cable string basket technical field, concretely relates to guy cable string basket running gear.
Background
The guyed cradle (also called front support point cradle) and the bridge structure edge part are longitudinal beam structures (needed by stay cable anchoring), and the general wing plate cantilever is smaller. Along with the construction and development of urban roads of cable-stayed bridges, the width of the bridge is wider (the maximum width is known at present to be 44.5 m), and wing plate cantilevers on the two transverse sides of the bridge are larger and larger, so that the rigidity of C-shaped hanging legs of a guyed hanging basket is increased, the weight of the hanging basket is heavier and heavier, and the weight of the hanging basket structure is inevitably over standard.
The current guyed cradle design standard is: 1, weight to load ratio (cradle weight/design load) < 0.4. 2, the accumulated total rigidity is less than 20 mm; and 3, the strength stability meets the standard requirement. Therefore, under the requirement of guaranteeing the rigidity index, reducing the self weight of the hanging basket is the primary task of design, and the mode of changing the walking mode to save the weight of the bracket is the necessary mode.
The domestic current guyed cradle walking mode is as follows: the front end C-shaped hanging legs slide on the top surface of the bridge, and the back end is additionally provided with back pressure rollers at the bottom of the bridge, as shown in figure 1. The application conditions are that the bridge wing plate cantilever is small, the change of the transverse included angle of the stay cable is small or the stay cable is on the same plane, the weight of the hanging legs of the type of top walking stay cable hanging basket accounts for 10-15% of the design weight, for wide bridges (larger than 30 m) with the enlargement of the transverse wing plate cantilever of the cable-stayed bridge, the weight ratio of the hanging basket exceeds the standard by adopting the design of the conventional stay cable hanging basket, and the rigidity can exceed the limit. The wing plates are easy to crack due to the concentrated force generated on the bridge-forming wing plates, and the walking track is easy to occupy conflict with the stay cables and the longitudinal transverse prestressed pipelines.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a traction cable hanging basket running gear, thereby can reduce and hang the basket dead weight and accord with traction cable hanging basket design sample.
The utility model discloses a realize through following technical scheme:
the utility model provides a guy cable hangs basket running gear, includes the string basket platform that is located the bridge bottom, establishes respectively that bridge lower part left and right sides detachable hangs the slide subassembly and can pull the draw gear who hangs the basket platform and remove, the upper portion of hanging the basket platform is equipped with the slide rail set spare that left and right distributes along its length direction, two slide rail set spares on left and right sides two hang the slide subassembly respectively sliding fit.
Furthermore, the left sliding rail assembly and the right sliding rail assembly respectively comprise a T-shaped guide rail fixedly connected to the cradle platform through a fixed connecting piece; hang the slide subassembly and all include a plurality of slide units of hanging, every slide unit of hanging all includes slide spare, suspender member, attaches wall subassembly and jib subassembly, be equipped with on the slide spare with T type guide rail cooperation relative slip's recess, the upper portion of slide spare is articulated the lower part of suspender member, the medial surface of suspender member passes through attach wall subassembly fixed connection in the side of bridge lower part, jib subassembly fixed mounting is on bridge upper portion, jib subassembly fixed connection suspender member upper portion.
Furthermore, the suspender component comprises an anchor beam, one end of the anchor beam is fixedly connected to the upper part of the bridge through a plurality of anchor rods, the other end of the anchor beam is fixedly connected to the upper part of the hanger through a plurality of suspenders penetrating through the bridge, and a plurality of cushion blocks are arranged between the anchor beam and the bridge; the hanger rod and the anchor rod are finish rolling threaded rods.
Furthermore, the wall attaching assembly comprises a wall attaching plate and a plurality of embedded parts, the embedded parts are embedded in the side face of the lower portion of the bridge in an embedded mode, one side face of the wall attaching plate is fixed to the embedded parts through threaded connectors, and the other side face of the wall attaching plate is fixed to the hanging piece through threaded connectors.
Furthermore, draw gear includes stretch-draw jack and stretch-draw oil pump, stretch-draw jack passes through steel strand wires fixed connection on hanging the basket platform.
Further, the length of hanging the basket platform is 12m, hang the slide subassembly and include two slide units of hanging, two distances of hanging between the slide unit are 6m, two slide spare pass through the connecting rod and articulate.
Compared with the prior art, the utility model the beneficial effect who gains as follows:
1. the hanging basket platform moves by matching the hanging slide seat assembly with the slide rail assemblies on the left side and the right side of the bottom of the bridge, a hanging leg structure is directly removed, 10-15% of the weight of the hanging basket is saved, the risk of wing plate cracking caused by concentrated force generated by bridge wing plates is avoided, and the construction safety is greatly ensured;
2. the sliding rail assembly for the walking track is positioned at the lower part, so that occupation conflict with the stay cable and the longitudinal transverse prestressed pipeline is avoided;
3. the back-end back-pressure roller device is saved (the weight is saved by about 2 t), and the walking is more stable;
4. the utility model discloses a structural commonality is strong, and the structure is light and handy, satisfies guy cable hanging basket design index relatively easily: (the weight-to-load ratio, rigidity, strength and stability indexes), greatly reduces the manufacturing cost and has better economic benefit.
Drawings
FIG. 1 is a schematic view of a prior art lanyard basket with hanging legs;
FIG. 2 is a schematic view of the three-dimensional structure of the traction rope hanging basket walking device of the present invention;
FIG. 3 is an enlarged view of the part A of FIG. 2;
FIG. 4 is a schematic view of the hanging slide unit of the present invention;
FIG. 5 is a left side view of the hanging slide assembly of the present invention;
fig. 6 is a schematic structural view of the traction device of the present invention;
FIG. 7 is a schematic structural view of a lower cradle without a running gear;
FIG. 8 is a walking state diagram of the traction rope hanging basket walking device of the utility model;
in the figure: 1. the hanging basket platform comprises a hanging basket platform body 2, a hanging sliding seat assembly 21, sliding seat parts 22, a hanging part 23, an anchor beam 24, an anchor rod 25, a hanging rod 26, an attached wallboard 27, an embedded part 3, a T-shaped guide rail 4, a tensioning jack 5, a tensioning oil pump 6, a steel strand 7 and a connecting rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. The described embodiments are only some embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in figure 2, the utility model provides a guy cable hangs basket running gear mainly includes the basket platform 1 that hangs that is located the bridge bottom, installs respectively in the hanging slide subassembly 2 of the bridge lower part left and right sides and can pull the draw gear three major part constitutions that hang basket platform 1 and remove.
Wherein, hang basket platform 1's length and be about 13m, in order to cooperate and hang the slide subassembly and use, hang basket platform 1's upper portion and install left and right distribution's T type guide rail 3 through the welded mode of reinforcement along its length direction.
As shown in fig. 3 to 5, the hanging carriage assemblies 2 on the left and right sides each include two hanging carriage units spaced apart by 6m, and each hanging carriage unit includes a carriage member 21, a hanging member 22, a wall attaching plate 26, four embedded members 27, an anchor beam 23, four anchor rods 24, and four suspension rods 25. The sliding seat member 21 is provided with a groove which can be matched with the T-shaped guide rail 3 to slide relatively, so that the sliding seat member 21 can be matched with the T-shaped guide rail 3 for use. The upper portion of the sliding seat part 21 is hinged to the lower portion of the hanging part 22 through a pin shaft, four embedded parts 27 with threads are embedded in the side face of the lower portion of the bridge in advance, the inner side face of the hanging part 22 is fixedly connected with the wall attaching plate 26 through bolts, the other side face of the wall attaching plate 26 is firmly connected to the four embedded parts 27 through nuts, and therefore the hanging part can be fixed laterally through the wall attaching assembly. Four stock 24 and four jibs 25 are the finish rolling threaded rod, and anchor beam 23 is the separation with the bridge, places anchor beam 23 on the bridge through a plurality of cushion, then four stock 24 fixed connection are passed through to the one end of anchor beam 23 on the bridge, and the other end of anchor beam 23 is through four jib 25 fixed connection hanger 22 upper portions that pass the bridge, fixes the hanger through anchor beam and jib like this, has improved the fastness and the stability of hanger like this greatly. Between two hanging slide seat units on the same side, in order to improve the relative stability between the slide seat pieces, the two slide seat pieces are respectively hinged with the left end and the right end of the connecting rod 7.
As shown in fig. 6, the traction device mainly includes a tensioning jack 4 and a tensioning oil pump 5, and the tensioning jack is a special jack for tensioning prestressed tendons such as steel strand wires. The tensioning jack needs to be matched with a tensioning oil pump for use, and the power for tensioning and jacking is provided by high-pressure oil of the tensioning oil pump, and the tensioning jack belongs to the prior art. In this case, two sets of tensioning jack devices can be adopted, the tensioning oil pump 5 is installed on the bridge surface, the tensioning oil pump 5 is fixedly installed on the sliding seat piece at the front end, and the two tensioning jacks 4 are respectively and fixedly connected to the rear ends of the T-shaped guide rails at the left side and the right side through the steel strands 6, so that the T-shaped guide rails can be continuously tensioned and drawn, and the cradle platform can move forward relative to the bridge.
When the guy cable hanging basket is fixed at the lower part of the bridge, concrete pouring is carried out, and in the process, the guy cable hanging basket is fixedly connected to the bridge through a hanging basket anchoring assembly, and the hanging basket anchoring assembly is the prior art and is not described in detail herein.
The concrete operation steps of the traction rope hanging basket walking device are as follows:
1. as shown in figure 7, when concrete pouring of a section of part is finished, the prestressed stay cable is tensioned, the basket anchoring assembly bears the gravity of the basket platform, the whole basket is lowered by 500mm, and meanwhile, the side mould of the basket is opened by 1250 mm.
2. And installing a guy rope hanging basket walking device. Firstly, hanging slide seat components on the left side and the right side are installed, slide seat parts are installed on the T-shaped guide rail in a matching mode, and the inner side surfaces of hanging parts are fixedly connected with embedded part threads on the side surfaces of the bridge through the wall attaching plate; then one end of the anchor beam is fixed on the bridge through the anchor rod, and the other end of the anchor beam penetrates through the bridge and is fixedly connected to the upper portion of the hanging piece through the hanging rod, so that the firmness of the hanging piece is realized, and the enough bearing capacity can be guaranteed to bear the cradle platform. And finally, a traction device is arranged on the bridge, and the two steel strands are fixedly connected to the rear end of the T-shaped guide rail through extrusion sleeve heads respectively. After the guy cable hanging basket walking device is installed, the hanging basket anchoring assembly is removed, and thus the gravity of the hanging basket platform is completely transferred to the hanging slide seat assembly.
3. As shown in fig. 8, the tensioning oil pump is controlled to enable the tensioning jack to pull the whole cradle platform to advance for 6m through the steel strand, and then the tensioning jack is stopped.
4. And reinstalling the cradle anchoring assembly, transferring the bearing capacity on the hanging slide seat assembly to the cradle anchoring assembly, removing the hanging slide seat assembly and the anchor beam assembly, adjusting the template, lifting the cradle by 500mm again, and then fixing.
5. And (3) initially tightening the stay cable to the designed initial tension, pre-tightening the main truss anchoring system of the hanging basket to achieve the concrete pouring state, then performing concrete pouring, and repeating the steps of 1-4 to sequentially construct and pour section by section.
In the process, the cradle platform is moved, the leg hanging structure is directly removed, 10-15% of the weight of the cradle is saved, the risk of wing plate cracking caused by concentrated force generated by bridge wing plates is avoided, and the construction safety is greatly ensured; the sliding rail assembly for the walking track is positioned at the lower part, so that occupation conflict with the stay cable and the longitudinal transverse prestressed pipeline is avoided.
Claims (6)
1. The utility model provides a guy cable hangs basket running gear, its characterized in that, including hanging basket platform (1) that is located the bridge bottom, establishing respectively in bridge lower part left and right sides detachable hang slide subassembly (2) and can pull the draw gear who hangs basket platform (1) and remove, the upper portion of hanging basket platform (1) is equipped with the slide rail set spare that left and right distributes along its length direction, two slide rail set spares on left and right sides two hang slide subassembly (2) of sliding fit respectively.
2. The guy cable hanging basket walking device as claimed in claim 1, wherein the left and right slide rail assemblies each comprise a T-shaped guide rail (3) fixedly connected to the hanging basket platform (1) through a fixed connecting piece; hang slide subassembly (2) and all include a plurality of slide units of hanging, every slide unit of hanging all includes slide spare (21), hanger (22), attaches wall subassembly and jib subassembly, be equipped with on slide spare (21) with T type guide rail (3) cooperation relative slip's recess, the upper portion of slide spare (21) is articulated the lower part of hanger (22), the medial surface of hanger (22) passes through attach wall subassembly fixed connection in the side of bridge lower part, jib (25) subassembly fixed mounting is on bridge upper portion, jib subassembly fixed connection hanger (22) upper portion.
3. The guy wire basket walking device of claim 2, wherein the suspension rod (25) assembly comprises an anchor beam (23), one end of the anchor beam (23) is fixedly connected to the upper part of the bridge through a plurality of anchor rods (24), the other end of the anchor beam (23) is fixedly connected to the upper part of the hanger (22) through a plurality of suspension rods (25) penetrating through the bridge, and a plurality of cushion blocks are arranged between the anchor beam (23) and the bridge; the hanger rod (25) and the anchor rod (24) are finish rolling threaded rods.
4. The guy rope hanging basket walking device as claimed in claim 2, wherein the wall attaching assembly comprises a wall attaching plate (26) and a plurality of embedded parts (27), the embedded parts (27) are embedded in the side surface of the lower portion of the bridge, one side surface of the wall attaching plate (26) is fixed on the embedded parts (27) through threaded connectors, and the other side surface of the wall attaching plate (26) is fixed on the hanging parts (22) through threaded connectors.
5. The guy wire basket walking device according to any one of claims 1 to 4, wherein the traction device comprises a tensioning jack (4) and a tensioning oil pump (5), and the tensioning jack (4) is fixedly connected on the basket platform (1) through a steel strand (6).
6. Guy-strand basket walking device according to any of claims 2-4, characterized in that the basket platform (1) has a length of 12m, the hanging carriage assembly (2) comprises two hanging carriage units with a distance of 6m between them, and the two carriage pieces (21) are hinged by means of a connecting rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724719.4U CN211171648U (en) | 2019-10-15 | 2019-10-15 | Traction rope hanging basket walking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724719.4U CN211171648U (en) | 2019-10-15 | 2019-10-15 | Traction rope hanging basket walking device |
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| Publication Number | Publication Date |
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| CN211171648U true CN211171648U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921724719.4U Active CN211171648U (en) | 2019-10-15 | 2019-10-15 | Traction rope hanging basket walking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523110A (en) * | 2020-11-06 | 2021-03-19 | 江苏镇江路桥工程有限公司 | Suspended casting construction hanging basket suspension system convenient to move |
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2019
- 2019-10-15 CN CN201921724719.4U patent/CN211171648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523110A (en) * | 2020-11-06 | 2021-03-19 | 江苏镇江路桥工程有限公司 | Suspended casting construction hanging basket suspension system convenient to move |
| CN112523110B (en) * | 2020-11-06 | 2022-07-12 | 江苏镇江路桥工程有限公司 | Suspended casting construction hanging basket suspension system convenient to move |
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