CN214459666U - Bridge bearing does not have jacking change structure - Google Patents
Bridge bearing does not have jacking change structure Download PDFInfo
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- CN214459666U CN214459666U CN202023197156.3U CN202023197156U CN214459666U CN 214459666 U CN214459666 U CN 214459666U CN 202023197156 U CN202023197156 U CN 202023197156U CN 214459666 U CN214459666 U CN 214459666U
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- jacking
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- backing plate
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Abstract
The utility model relates to a bridge beam supports does not have jacking change structure, include: the novel support comprises a lateral sliding base plate and an annular support frame which are arranged at the top of a pier, and a novel support arranged between the lateral sliding base plate and a bridge body; the annular support frame comprises a tightening column and connecting rods, clamp parts with bolt holes are arranged at two ends of each connecting rod, connecting rods are arranged between every two adjacent tightening columns, and the clamp parts are connected and fixed through bolts. The utility model has the advantages that: the annular support frame is reasonable in structure and easy to disassemble and assemble, the original support and the pad stone are disassembled after the upper structural beam body of the bridge is supported, the operation is simple, and the technical advantage is obvious; the adopted lateral sliding base plate can adjust the height and lock the height at any position; the adopted support replacing system does not need jacking, and has reasonable structure and low cost.
Description
Technical Field
The utility model relates to a bridge engineering technical field, in particular to bridge beam supports does not have jacking and changes structure.
Background
Along with the continuous expansion of cities, the living standard of people is gradually improved, and the traffic is developed day by day. For urban traffic systems, bridge engineering is a key component thereof. The support is an important component for connecting an upper structure and a lower structure by a bridge, has the main function of transmitting various loads borne by the upper structure to the abutment, can adapt to deformation (horizontal displacement and corner) of the upper structure caused by load, temperature change, concrete shrinkage and the like, enables the actual stress condition of the upper structure to meet the design requirement, and can resist the adverse effects of structural translation and vibration on the structure caused by wind power, seismic waves and the like. Therefore, whether the support has enough safety is very important for the use, safety and stability of the bridge. After the bridge is built and installed, the support seats are required to be regularly checked and maintained, and are regularly replaced, so that the support seats with the problems of deformation, aging and the like are timely replaced.
The existing method for replacing the support usually adopts a plurality of jacks and oil pumps to lift the original pier column or temporary support column, so as to replace the support. However, a lot of problems exist in the process of replacing the bridge support, the cost of replacing the support is high, the jack is easy to slide and misplace during use in the construction process, the effect of supporting the bridge by the jack is affected, the construction process is complex, and the reliability is difficult to guarantee.
Therefore, at present, it is important to find a replacement structure without jacking for a bridge support, which does not need a jack, has simple process and low cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, provide a bridge beam supports does not have jacking change structure.
The bridge support non-jacking replacement structure comprises a lateral sliding base plate and an annular support frame which are arranged at the top of a pier, and a new support arranged between the lateral sliding base plate and a bridge body;
the annular support frame consists of tightening posts and connecting rods, two ends of each connecting rod are provided with hoop parts with bolt holes, connecting tie rods are arranged between every two adjacent tightening posts, and the hoop parts are mutually connected and fixed through bolts;
the lateral sliding base plate comprises a base plate, a base plate frame, a wedge block, an anchor rope, an anchor head and sealing mortar, the base plate is arranged in the base plate frame, the wedge block and the anchor rope are arranged on the lower portion of the base plate, one end of the anchor rope is connected with the wedge block, the other end of the anchor rope penetrates through the base plate frame and is fixed through the anchor head, and the sealing mortar is filled in a gap at the bottom of the base plate.
Preferably, the method comprises the following steps: the top tightening column comprises a dynamometer, a top pressing plate, a supporting rod, a bottom pressing plate and an adjusting bolt, the top pressing plate is arranged at the upper end of the supporting rod, the bottom pressing plate is arranged at the lower end of the supporting rod, the adjusting bolt is arranged in the middle of the supporting rod, and the dynamometer is arranged on the upper surface of the top pressing plate.
Preferably, the method comprises the following steps: the lower part of the base plate frame is provided with an inlet of a wedge block and a through hole of an anchor cable.
The utility model has the advantages that:
1. compared with the synchronous jacking system of jack that needs to use among the conventional art, the utility model discloses the ring support frame that sets up, rational in infrastructure and easy dismouting, support bridge superstructure roof beam body after, demolish former support and stone pad, easy operation, technical advantage is showing.
2. The utility model discloses a lateral sliding backing plate, can height-adjusting to can die the high lock in the optional position.
3. The utility model discloses a support change system need not the jacking, rational in infrastructure, and is with low costs.
Drawings
FIG. 1 is a schematic view of a bridge deck replacement without jacking;
FIG. 2 is a schematic plan view of a replacement structure without jacking for a bridge support;
FIG. 3 is a schematic view of the arrangement of the annular bracing frame;
FIG. 4 is a schematic perspective view of a tightening post;
FIG. 5 is a partial schematic view of the mounting of the annular bracing frame;
FIG. 6 is a schematic view of the adjustment of the lateral sliding pad;
fig. 7 is a schematic view of the completion of the lateral sliding pad.
Description of reference numerals: 1-bridge beam body; 2-bridge pier; 3-new support; 4-lateral sliding backing plate; 5-annular support frame; 6, tightly pushing the column; 7-connecting rod; 8-dynamometer; 9-top pressure plate; 10-support bar; 11-bottom platen; 12-adjusting bolt; 13-bolt; 14-a clip member; 15-backing plate; 16-backing plate frame; 17-wedge block; 18-anchor cable; 19-anchor head; 20-sealing mortar; 21-original support; 22-original cushion stone.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Example one
The bridge support does not have jacking replacement structure, including setting up in lateral sliding backing plate 4 and the annular bracing frame 5 at 2 tops of pier to and set up in the new support 3 between lateral sliding backing plate 4 and the bridge roof beam body 1.
The annular support frame 5 is composed of tightening columns 6 and connecting rods 7, clamp parts 14 with bolt holes are arranged at two ends of each connecting rod 7, the connecting rods 7 are arranged between every two adjacent tightening columns 6, and the clamp parts 14 are fixed through bolts 13 and connected with one another.
Lateral sliding backing plate 4 include backing plate 15, backing plate frame 16, wedge 17, anchor rope 18, anchor head 19 and closed mortar 20, set up backing plate 15 in the backing plate frame 16, backing plate 15 lower part sets up wedge 17 and anchor rope 18, anchor rope 18 one end is connected with wedge 17, and the other end passes backing plate frame 16 and sets up anchor head 19 fixed, and gap department packs has closed mortar 20.
The pressing column 6 comprises a dynamometer 8, a pressing plate 9, a supporting rod 10, a bottom pressing plate 11 and an adjusting bolt 12, the pressing plate 9 is arranged at the upper end of the supporting rod 10, the bottom pressing plate 11 is arranged at the lower end of the supporting rod, the adjusting bolt 12 is arranged in the middle of the supporting rod, and the dynamometer 8 is arranged on the upper surface of the pressing plate 9.
The lower part of the cushion plate frame 16 is provided with an inlet of a wedge block 17 and a through hole of an anchor cable 18.
Example two
The construction method for replacing the structure of the bridge support without jacking comprises the following steps:
1) as shown in fig. 3, 4 and 5, an annular support frame 5 is arranged on the bridge pier 2, each jacking column 6 is adjusted to be tightly jacked with the bridge girder 1 through an adjusting bolt 12, and the jacking is tightly jacked when the pressure of each dynamometer 8 in the annular support frame 5 is not increased any more;
2) dismantling an original support 21 and an original cushion stone 22 on the pier 2, removing impurities, and carrying out renovation and leveling on the platform surface of the pier 2;
3) as shown in fig. 1, 2, 6 and 7, a lateral sliding base plate 4 and a new support 3 are placed on a pier 2, a pulling force is applied to an anchor cable 18 to enable a wedge block 17 below a base plate 15 to slide, the base plate 15 is lifted, the new support 3 is lifted up to support a bridge body 1, and the new support 3 bears a pressure; when the bridge beam body 1 rises to the original elevation position, an anchor head 19 is installed on the anchor cable 18 to fix the wedge-shaped block 17, the exposed redundant anchor cable 18 and the exposed wedge-shaped block 17 are cut off, sealing mortar 20 is used for filling the gap at the bottom of the backing plate 15, and finally the annular support frame 5 is dismantled to finish the non-jacking replacement of the bridge support.
Claims (3)
1. The utility model provides a bridge beam supports does not have jacking change structure which characterized in that: comprises a lateral sliding base plate (4) and an annular support frame (5) which are arranged at the top of a pier (2), and a new support (3) which is arranged between the lateral sliding base plate (4) and a bridge body (1);
the annular support frame (5) consists of tightening columns (6) and connecting rods (7), clamp members (14) with bolt holes are arranged at two ends of each connecting rod (7), the connecting rods (7) are arranged between every two adjacent tightening columns (6), and the clamp members (14) are mutually connected and fixed through bolts (13);
lateral sliding backing plate (4) include backing plate (15), backing plate frame (16), wedge (17), anchor rope (18), anchor head (19) and closed mortar (20), set up backing plate (15) in backing plate frame (16), backing plate (15) lower part sets up wedge (17) and anchor rope (18), anchor rope (18) one end is connected with wedge (17), and the other end passes backing plate frame (16) and fixes through anchor head (19), and backing plate (15) bottom space department fills has closed mortar (20).
2. The bridge support jacking-free replacing structure of claim 1, wherein: the jacking column (6) comprises a dynamometer (8), a jacking plate (9), a supporting rod (10), a bottom pressing plate (11) and an adjusting bolt (12), wherein the jacking plate (9) is arranged at the upper end of the supporting rod (10), the bottom pressing plate (11) is arranged at the lower end of the supporting rod (10), the adjusting bolt (12) is arranged in the middle of the supporting rod (10), and the dynamometer (8) is arranged on the upper surface of the jacking plate (9).
3. The bridge support jacking-free replacing structure of claim 1, wherein: the lower part of the cushion plate frame (16) is provided with an inlet of a wedge block (17) and a through hole of an anchor cable (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023197156.3U CN214459666U (en) | 2020-12-25 | 2020-12-25 | Bridge bearing does not have jacking change structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023197156.3U CN214459666U (en) | 2020-12-25 | 2020-12-25 | Bridge bearing does not have jacking change structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214459666U true CN214459666U (en) | 2021-10-22 |
Family
ID=78194627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023197156.3U Active CN214459666U (en) | 2020-12-25 | 2020-12-25 | Bridge bearing does not have jacking change structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214459666U (en) |
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2020
- 2020-12-25 CN CN202023197156.3U patent/CN214459666U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bridge support without lifting replacement structure Effective date of registration: 20230927 Granted publication date: 20211022 Pledgee: Industrial Bank Limited by Share Ltd. Wuhan branch Pledgor: HUBEI PROVINCIAL ROAD & BRIDGE Co.,Ltd. Registration number: Y2023980059401 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |