CN212128891U - Modular anchor system behind bridge hanging basket - Google Patents
Modular anchor system behind bridge hanging basket Download PDFInfo
- Publication number
- CN212128891U CN212128891U CN202020319572.7U CN202020319572U CN212128891U CN 212128891 U CN212128891 U CN 212128891U CN 202020319572 U CN202020319572 U CN 202020319572U CN 212128891 U CN212128891 U CN 212128891U
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- pull rod
- box girder
- bridge
- basket
- girder
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Abstract
The utility model relates to a combined bridge hanging basket rear anchor system, wherein a hanging basket rear fulcrum is supported on a box girder, a pressing beam is arranged on the top of the hanging basket rear fulcrum in the transverse bridge direction, two shoulder pole beams are respectively arranged below the two ends of the pressing beam along the bridge direction, and the pressing beam is connected with the middle part of the shoulder pole beam through an upper pull rod; the box girder is provided with a back anchor preformed hole corresponding to the two ends of the shoulder pole girder, and the two ends of the shoulder pole girder are respectively anchored with a lower pull rod which passes through the back anchor preformed hole. The utility model discloses can set up the back anchor preformed hole in the position that the selection was kept away from the prestressing force pipeline on the case roof beam, facilitate for hanging the basket anchor.
Description
Technical Field
The utility model belongs to the technical field of hang basket cantilever construction among the bridge engineering, concretely relates to modular anchor system behind basket is hung to bridge, its main function is for hanging basket owner truss back fulcrum provide the anchoring effect to hang the stability of basket when ensureing concreting.
Background
The prestressed concrete continuous box girder (rigid frame) bridge is widely applied to highway and railway bridges, and is generally constructed by a method of hanging basket cantilever casting. The front end of the hanging basket is hung with construction load, and the rear end is anchored on the box girder, so that the overall structure of the hanging basket is stable. The rear anchor of the cradle is used as one of key stress components of the whole system, and the safety of the construction process is concerned.
In the prior art, a pressing beam is usually arranged at the top of a rear supporting point of a cradle, and two ends of the pressing beam are anchored with a box girder through pull rods. Under the condition that the box girder vertical prestressed tendons are just opposite to the lower part of the compression beam, the prestressed tendons can be directly utilized to extend upwards through the compression beam to serve as pull rods; the condition that can not utilize the vertical prestressing tendons of case roof beam is usually when case roof beam concrete construction set up just to the back anchor preformed hole at the compression beam both ends, and the preformed hole runs through case roof beam roof plate and bottom plate, passes the compression beam through the pull rod and will hang the basket anchor with back anchor preformed hole.
The box girder is generally designed with a plurality of prestressed pipelines, and during actual construction, the box girder is often subjected to the condition that the prestressed pipelines are arranged at the positions opposite to the pressing beam, so that the reserved holes of the rear anchors cannot be constructed on the premise of ensuring the accurate positions of the prestressed pipelines, and the difficulty is caused for anchoring the hanging basket.
Disclosure of Invention
The utility model aims at improving current basket anchor structure of hanging, providing a modular anchor system behind basket is hung to bridge, make back anchor preformed hole keep away the case roof beam prestressed pipe way, hang the basket anchor smoothly.
The technical scheme of the utility model as follows:
the utility model provides a modular anchor system behind basket is hung to bridge, hangs the basket back fulcrum and supports on bridge case roof beam, hangs the horizontal bridge in fulcrum top behind the basket and is provided with pressure beam, its characterized in that: a carrying pole beam is respectively arranged below the two ends of the pressing beam along the bridge direction, and the pressing beam is connected with the middle part of the carrying pole beam through an upper pull rod; rear anchor preformed holes penetrating through a box girder top plate and a box girder bottom plate are respectively formed in the box girder corresponding to two ends of the carrying pole girder, a lower pull rod penetrates through each rear anchor preformed hole, the upper end of each lower pull rod penetrates through the carrying pole girder, the lower end of each lower pull rod protrudes below the box girder bottom plate, and two ends of each lower pull rod are respectively in threaded connection with an anchoring nut.
The utility model has the advantages of reasonable design, the installation and demolish simply, convenient to use, safe and reliable. The shoulder pole beam is additionally arranged between the pressing beam and the top surface of the box girder, so that the position of avoiding the prestressed pipeline on the box girder can be selected to be provided with the rear anchor preformed hole, the problem that the rear anchor preformed hole cannot be applied according to the design position in the prior art is effectively solved, and convenience is brought to the anchoring of the hanging basket.
Drawings
Fig. 1 is a schematic side view of the present invention;
fig. 2 is a schematic rear view of the present invention.
Detailed Description
As shown in fig. 1 and 2, in the combined bridge cradle rear anchor system provided by the present invention, a cradle rear fulcrum 1 is supported on a box girder 2, a pressing beam 3 is arranged in a horizontal bridge direction at the top of the cradle rear fulcrum 1, a carrying pole beam 4 is respectively arranged below two ends of the pressing beam 3 in the bridge direction, and the pressing beam 3 is connected with the middle part of the carrying pole beam 4 through an upper pull rod 5; rear anchor preformed holes 6 penetrating through a box girder top plate and a box girder bottom plate are respectively formed in the box girder corresponding to two ends of the carrying pole girder, a lower pull rod 7 penetrates through each rear anchor preformed hole 6, the upper end of each lower pull rod 7 penetrates through the carrying pole girder 4, the lower end of each lower pull rod 7 protrudes below the box girder bottom plate, and two ends of each lower pull rod 7 are respectively in threaded connection with an anchoring nut 8.
The utility model discloses during the implementation, shoulder pole roof beam 4 hangs between press beam 3 and 2 top surfaces of case roof beam, the shoulder pole roof beam not with the contact of case roof beam to avoid outstanding vertical prestressing tendons or other parts at case roof beam top surface to influence the setting of shoulder pole roof beam.
The utility model discloses when case roof beam 2 was pour, in the same direction as the bridge to point design anchor position both sides selection behind the string basket not with the position setting of prestressing force pipeline conflict two back anchor preformed holes 6. When the hanging basket is installed, a pressing beam 3 is welded at the top of a rear fulcrum 1, a carrying pole beam 4 is arranged along each row of anchoring preformed holes 6 along the bridge direction, two ends of the pressing beam 3 are respectively connected with the middle part of the carrying pole beam 4 through an upper pull rod 5, and the carrying pole beam 4 is suspended; the length of the shoulder pole beam is such that the lower parts of the two ends of the shoulder pole beam respectively correspond to a rear anchor preformed hole 6, a lower pull rod 7 is inserted into the two rear anchor preformed holes, the upper ends of the two lower pull rods respectively penetrate through the two ends of the shoulder pole beam 4, an anchoring nut 8 is screwed on the top of the shoulder pole beam, and the lower end of the lower pull rod 7 protrudes below the bottom plate of the box girder 2 and is screwed with the anchoring nut.
Claims (2)
1. The utility model provides a modular anchor system behind basket is hung to bridge, hangs the basket back fulcrum and supports on bridge case roof beam, hangs the horizontal bridge in fulcrum top behind the basket and is provided with pressure beam, its characterized in that: a carrying pole beam is respectively arranged below the two ends of the pressing beam along the bridge direction, and the pressing beam is connected with the middle part of the carrying pole beam through an upper pull rod; rear anchor preformed holes penetrating through a box girder top plate and a box girder bottom plate are respectively formed in the box girder corresponding to two ends of the carrying pole girder, a lower pull rod penetrates through each rear anchor preformed hole, the upper end of each lower pull rod penetrates through the carrying pole girder, the lower end of each lower pull rod protrudes below the box girder bottom plate, and two ends of each lower pull rod are respectively in threaded connection with an anchoring nut.
2. The modular bridge hanging basket rear anchor system of claim 1, wherein: the shoulder pole beam is suspended between the press beam and the top surface of the box girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020319572.7U CN212128891U (en) | 2020-03-15 | 2020-03-15 | Modular anchor system behind bridge hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020319572.7U CN212128891U (en) | 2020-03-15 | 2020-03-15 | Modular anchor system behind bridge hanging basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212128891U true CN212128891U (en) | 2020-12-11 |
Family
ID=73674173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020319572.7U Active CN212128891U (en) | 2020-03-15 | 2020-03-15 | Modular anchor system behind bridge hanging basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212128891U (en) |
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2020
- 2020-03-15 CN CN202020319572.7U patent/CN212128891U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CCCC Zhongxiang Highway Development Co.,Ltd. Assignor: ROAD AND BRIDGE EAST CHINA ENGINEERING Co.,Ltd.|ROAD & BRIDGE INTERNATIONAL Co.,Ltd. Contract record no.: X2022990000360 Denomination of utility model: A combined bridge cradle rear anchor system Granted publication date: 20201211 License type: Common License Record date: 20220706 |