CN210031539U - Highway bridge transfers slope jacking structure - Google Patents
Highway bridge transfers slope jacking structure Download PDFInfo
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- CN210031539U CN210031539U CN201920644996.8U CN201920644996U CN210031539U CN 210031539 U CN210031539 U CN 210031539U CN 201920644996 U CN201920644996 U CN 201920644996U CN 210031539 U CN210031539 U CN 210031539U
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Abstract
The utility model discloses a highway bridge transfers slope jacking structure, it sets up on domatic, including the highway bridge top of slope jacking structure of neighbouring top of slope, the highway bridge bottom of slope jacking structure of neighbouring bottom of slope and the bridge broken post jacking structure that is located between highway bridge top of slope jacking structure and the highway bridge bottom of slope jacking structure. The utility model discloses according to domatic height difference, be provided with public road bridge roof slope top jacking structure, public road bridge roof slope bottom jacking structure and bridge broken post jacking structure respectively, make the bridge after the jacking be located same horizontal plane, satisfy the bridge and set for the construction requirement of height.
Description
Technical Field
The utility model relates to a public road bridge roof beam construction field specifically is a public road bridge roof beam transfers slope jacking structure.
Background
The highway bridge is classified according to a structural system, mechanical characteristics of a bridge structure are taken as basic points of attention, the bridge is classified, basic characteristics of various bridges can be mastered, the highway bridge is also one of key points of bridge engineering learning, a general construction method for jacking the highway bridge is to directly set up a jacking support under the bridge, and different supports for jacking the highway bridge appear in the market along with continuous development of the building industry. However, the supports for jacking the highway bridge in the market at present do not have structures which are designed and built according to the gradient height.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a highway bridge transfers slope jacking structure to satisfy the jacking needs of the not co-altitude of slope.
The technical scheme of the utility model is that:
a highway bridge slope-regulating jacking structure is arranged on a slope surface and comprises a highway bridge slope top jacking structure adjacent to a slope top, a highway bridge slope bottom jacking structure adjacent to a slope bottom and a bridge broken column jacking structure between the highway bridge slope top jacking structure and the highway bridge slope bottom jacking structure;
the highway bridge slope top jacking structure comprises a bearing platform, a pier fixed at the top end of the bearing platform, a cover beam fixed at the top end of the pier and a plurality of jacks arranged on the cover beam and used for jacking the bridge;
the bridge column-broken jacking structure comprises a bearing platform, a lower bridge pier fixed at the top end of the bearing platform, an upper bridge pier arranged on the corresponding lower bridge pier, a column-embracing beam fixed at the bottom end of the upper bridge pier, a cover beam fixed at the top end of the bridge pier, a plurality of follow-up jacks arranged between the lower bridge pier and the column-embracing beam, a plurality of steel pipe supports arranged between the bearing platform and the column-embracing beam, a hydraulic jack arranged at the top end of each steel pipe support, a top cap arranged between the top end of each steel pipe support and the top head of the hydraulic jack, and a jacking limiting device, wherein the jacking limiting device comprises a limiting frame column of which the bottom end is fixed on the bearing platform and a limiting hole arranged on the column-embracing beam, and the top end of the limiting;
the highway bridge slope bottom jacking structure comprises bearing platforms, bridge abutments fixed on the upper end face of the bearing platforms and used for erecting bridges, foundation beams arranged between the bridge abutments and fixed on the upper end face of the bearing platforms, distribution beams fixed at the bottom ends of the bridges, two supporting steel pipes with the bottom ends connected to the foundation beams, a hydraulic jack connected to the top end of one of the supporting steel pipes, a follow-up jack connected to the top end of the other supporting steel pipe, jacking caps arranged between the top ends of the steel pipe supports and the top heads of the hydraulic jacks and between the top ends of the steel pipe supports and the top heads of the follow-up jacks, and jacking limiting devices, the top ends of the hydraulic jack and the follow-up jack are fixedly connected with the bottom end of the distribution beam, the jacking limiting device comprises a limiting frame column with the bottom end fixed on the abutment and a limiting stop block fixed at the bottom end of the bridge and in a frame structure, and the top end of the limiting frame column penetrates through an inner ring of the limiting stop block.
The steel pipe support is formed by connecting a plurality of sections of steel pipes from bottom to top, the outer diameter of the steel pipe on the top end is smaller than that of the steel pipe on the lower portion, a conversion cushion block is arranged between the steel pipe on the top end and the steel pipe below the top end and adjacent to the top end steel pipe, the conversion cushion block comprises a supporting pipe, an upper flange fixedly connected to the top end of the supporting pipe and a lower flange fixedly connected to the bottom end of the supporting pipe, the inner diameters of the upper flange, the lower flange and the top end steel pipe are the same, the outer diameter of the lower flange is the same as that of the lower portion steel pipe, the outer diameter of the upper flange is the same as that of the top end steel pipe, a circle of triangular reinforcing rib plate is arranged between the bottom end of the upper flange and the top end of the lower flange.
In the bridge column-broken jacking structure, two lower piers are fixed on each bearing platform, four follow-up jacks are fixed on each lower pier, four steel pipe supports are arranged between the bearing platforms and the column-embracing beams at the periphery of each lower pier, and corresponding hydraulic jacks are installed at the top ends of the steel pipe supports.
In the highway bridge slope bottom jacking structure, a concrete cushion plate is connected between the distribution beam and the bottom end of the bridge.
In the highway bridge slope bottom jacking structure, a steel tie bar is connected between the steel pipe support and the abutment.
And a steel base plate is arranged between a jack of the highway bridge slope top jacking structure and the bottom end of the bridge.
In the jacking limiting device of the bridge broken column jacking structure, an annular gap is reserved between a limiting frame column and a limiting hole; in the jacking limiting device of the highway bridge slope bottom jacking structure, an annular gap is reserved between the limiting frame column and the inner ring of the limiting stop block.
The utility model has the advantages that:
the utility model discloses according to domatic height difference, be provided with highway bridge top of slope jacking structure, highway bridge bottom of slope jacking structure and bridge broken column jacking structure respectively, make the bridge after the jacking be located same horizontal plane, satisfy the bridge and set for the construction requirement of height; the jacking cap in the bridge column-broken jacking structure and the highway bridge slope bottom jacking structure of the utility model enables the jacking force of the jack to be evenly transmitted to the side wall of the steel pipe; the jacking limiting device in the bridge column-broken jacking structure and the highway bridge slope bottom jacking structure of the utility model ensures the horizontal offset of bridge jacking, and prevents the bridge from generating large horizontal displacement in the jacking process; in the jacking structure at the slope bottom of the highway bridge, the concrete cushion plate between the distribution beam and the bottom end of the bridge ensures that the force transmission between the distribution beam and the bridge is uniform, and the steel tie bar connected between the steel pipe support and the abutment enhances the stability of the jacking structure; the utility model discloses an among the public road bridge roof jacking structure, be provided with the steel backing plate between the bottom of jack and bridge, protection roof beam body concrete is not destroyed.
Drawings
FIG. 1 is a front and rear elevation view of a bridge being jacked;
FIG. 2 is a schematic structural view of the jacking structure of the top of a highway bridge of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic structural view of the bridge broken column jacking structure of the present invention;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is an enlarged view of portion B of FIG. 5;
fig. 7 is a schematic structural view of the bridge broken column jacking structure of the present invention;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is an enlarged view of section C of FIG. 7;
FIG. 10 is an enlarged view of section D of FIG. 8;
fig. 11 is a schematic structural diagram of the conversion cushion block of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A highway bridge slope-adjusting jacking structure is arranged on a slope surface and comprises a highway bridge slope top jacking structure (shown in a figure 1, a No. 3 pier and a No. 4 pier) adjacent to a slope top, a highway bridge slope bottom jacking structure (shown in a figure 1, a No. 8 pier) adjacent to a slope bottom and a bridge broken column jacking structure (shown in a figure 1, a No. 5 pier, a No. 6 pier and a No. 7 pier) positioned between the highway bridge slope top jacking structure and the highway bridge slope bottom jacking structure;
referring to fig. 2 and 3, the highway bridge slope top jacking structure comprises a bearing platform 11, a pier 12 fixed at the top end of the bearing platform 11, a cover beam 13 fixed at the top end of the pier 12 and a plurality of jacks 14 arranged on the cover beam 13 and used for jacking the bridge; wherein a steel backing plate 15 is arranged between a jack 14 of the jacking structure of the highway bridge top and the bottom end of the bridge 4;
referring to fig. 4-6, the bridge column-broken jacking structure comprises a bearing platform 21, two lower piers 22 fixed at the top end of the bearing platform 21, upper piers 23 arranged on the corresponding lower piers 22, column-embracing girders 24 fixed at the bottom ends of the two upper piers 23, and capping girders 25 fixed at the top ends of the piers, the device comprises four follow-up jacks 26 arranged between lower piers 22 and an embracing column beam 24, four steel pipe supports 27 arranged at the periphery of each lower pier 22 and positioned between a bearing platform 21 and the embracing column beam 24, a hydraulic jack 28 arranged at the top end of each steel pipe support 27, a top cap 29 arranged between the top end of each steel pipe support 27 and the top of the hydraulic jack 28, and a jacking limiting device, wherein the jacking limiting device comprises a limiting frame column 210 with a bottom end fixed on the bearing platform 21 and a limiting hole arranged on the embracing column beam 24, the top end of the limiting frame column 210 penetrates through the limiting hole, and a 10mm annular gap is reserved between the limiting frame column 29 and the limiting hole;
referring to fig. 7-10, the slope bottom jacking structure of the highway bridge comprises a bearing platform 31, bridge abutments 32 fixed on the upper end surface of the bearing platform 31 for erecting the bridge 4, foundation beams 33 arranged between the bridge abutments 32 and fixed on the upper end surface of the bearing platform 21, a distribution beam 34 fixed on the bottom end of the bridge 4, two support steel pipes 35 with bottom ends connected to the foundation beams 33, a hydraulic jack 36 connected to the top end of one support steel pipe 35, a follow-up jack 37 connected to the top end of the other support steel pipe 35, a top cap 38 arranged between the top ends of the steel pipe supports 35 and the top ends of the hydraulic jacks 36 and between the top ends of the steel pipe supports 35 and the top ends of the follow-up jacks 37, a steel tie bar 39 connected between the steel pipe supports 35 and the bridge abutments 32, and a jacking limiting device, wherein the top ends of the hydraulic jacks 36 and the follow-up jacks 37 are both fixedly connected with the bottom ends of the distribution beam 33, and a concrete cushion plate 310 is, the jacking limiting device comprises a limiting frame column with the bottom end fixed on the abutment 32 and a limiting stop block fixed at the bottom end of the bridge 4 and in a frame structure, wherein the top end of the limiting frame column penetrates through the inner ring of the limiting stop block, and a 10mm annular gap is reserved between the limiting frame column and the inner ring of the limiting stop block;
the steel pipe supports 27 and 35 are formed by connecting a plurality of sections of steel pipes from bottom to top, the outer diameter of a steel pipe (ø 500) at the top end is smaller than that of a steel pipe (ø 609) at the lower end, a conversion cushion block 29 (see fig. 6) and 311 (see fig. 10) is arranged between a steel pipe (ø) at the top end (ø 500) and a steel pipe (ø) adjacent to the steel pipe at the lower end, see fig. 11, the conversion cushion block comprises a support pipe 51, an upper flange 52 fixedly connected to the top end of the support pipe 51 and a lower flange 53 fixedly connected to the bottom end of the support pipe 51, the inner diameters of the upper flange 52, the lower flange 53 and the steel pipe (ø 500) at the top end are the same, the outer diameter of the lower flange 53 is the same as that of the steel pipe (ø) at the lower end, the outer diameter of the upper flange 52 is the same as that of the steel pipe (ø) at the top end, a circle of triangular reinforcing rib plate 54 is arranged between the bottom end of the upper flange 52.
The utility model discloses a theory of operation:
jacking steps of No. 3 and No. 4 piers: and after jacking for one stroke, taking out the support, mounting a steel box concrete cushion block at the support, tightly filling a gap between the cushion block and the bridge by using a steel cushion plate 15, heightening a lower cushion block of a jack 14 after the jack 14 receives the cylinder, then jacking to a designed height on site for the second time, and screwing out the pressure-maintaining ring.
Jacking the No. 5-No. 8 pier: jacking by the hydraulic jacks 28 and 36, and following the lifting jacks 26 and 37 to perform cylinder discharging protection until the jacking of one stroke of the jacking jacks is completed; then, under the supporting state of the follow-up jacks 26 and 37, heightening the tool cushion blocks supported by the hydraulic jacks 28 and 36 after the hydraulic jacks 28 and 36 retract cylinders; then under the supporting state of the hydraulic jacks 28 and 36 and the pressure-maintaining rings thereof, the follow-up jacks 26 and 37 take up cylinders, and tool supporting cushion blocks of the follow-up jacks 26 and 37 are heightened; and finally, the jack completely returns to the cylinder retracting state before jacking, and then enters jacking of the next stroke. Repeating the above actions until the jacking is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a highway bridge transfers slope jacking structure which characterized in that: the highway bridge slope-adjusting jacking structure comprises a highway bridge slope top jacking structure adjacent to a slope top, a highway bridge slope bottom jacking structure adjacent to a slope bottom and a bridge broken column jacking structure positioned between the highway bridge slope top jacking structure and the highway bridge slope bottom jacking structure;
the highway bridge slope top jacking structure comprises a bearing platform, a pier fixed at the top end of the bearing platform, a cover beam fixed at the top end of the pier and a plurality of jacks arranged on the cover beam and used for jacking the bridge;
the bridge column-broken jacking structure comprises a bearing platform, a lower bridge pier fixed at the top end of the bearing platform, an upper bridge pier arranged on the corresponding lower bridge pier, a column-embracing beam fixed at the bottom end of the upper bridge pier, a cover beam fixed at the top end of the bridge pier, a plurality of follow-up jacks arranged between the lower bridge pier and the column-embracing beam, a plurality of steel pipe supports arranged between the bearing platform and the column-embracing beam, a hydraulic jack arranged at the top end of each steel pipe support, a top cap arranged between the top end of each steel pipe support and the top head of the hydraulic jack, and a jacking limiting device, wherein the jacking limiting device comprises a limiting frame column of which the bottom end is fixed on the bearing platform and a limiting hole arranged on the column-embracing beam, and the top end of the limiting;
the highway bridge slope bottom jacking structure comprises bearing platforms, bridge abutments fixed on the upper end face of the bearing platforms and used for erecting bridges, foundation beams arranged between the bridge abutments and fixed on the upper end face of the bearing platforms, distribution beams fixed at the bottom ends of the bridges, two supporting steel pipes with the bottom ends connected to the foundation beams, a hydraulic jack connected to the top end of one of the supporting steel pipes, a follow-up jack connected to the top end of the other supporting steel pipe, jacking caps arranged between the top ends of the steel pipe supports and the top heads of the hydraulic jacks and between the top ends of the steel pipe supports and the top heads of the follow-up jacks, and jacking limiting devices, the top ends of the hydraulic jack and the follow-up jack are fixedly connected with the bottom end of the distribution beam, the jacking limiting device comprises a limiting frame column with the bottom end fixed on the abutment and a limiting stop block fixed at the bottom end of the bridge and in a frame structure, and the top end of the limiting frame column penetrates through an inner ring of the limiting stop block.
2. The highway bridge slope-regulating jacking structure according to claim 1, wherein: the steel pipe support is formed by connecting a plurality of sections of steel pipes from bottom to top, the outer diameter of the steel pipe on the top end is smaller than that of the steel pipe on the lower portion, a conversion cushion block is arranged between the steel pipe on the top end and the steel pipe below the top end and adjacent to the top end steel pipe, the conversion cushion block comprises a supporting pipe, an upper flange fixedly connected to the top end of the supporting pipe and a lower flange fixedly connected to the bottom end of the supporting pipe, the inner diameters of the upper flange, the lower flange and the top end steel pipe are the same, the outer diameter of the lower flange is the same as that of the lower portion steel pipe, the outer diameter of the upper flange is the same as that of the top end steel pipe, a circle of triangular reinforcing rib plate is arranged between the bottom end of the upper flange and the top end of the lower flange.
3. The highway bridge slope-regulating jacking structure according to claim 1, wherein: in the bridge column-broken jacking structure, two lower piers are fixed on each bearing platform, four follow-up jacks are fixed on each lower pier, four steel pipe supports are arranged between the bearing platforms and the column-embracing beams at the periphery of each lower pier, and corresponding hydraulic jacks are installed at the top ends of the steel pipe supports.
4. The highway bridge slope-regulating jacking structure according to claim 1, wherein: in the highway bridge slope bottom jacking structure, a concrete cushion plate is connected between the distribution beam and the bottom end of the bridge.
5. The highway bridge slope-regulating jacking structure according to claim 1, wherein: in the highway bridge slope bottom jacking structure, a steel tie bar is connected between the steel pipe support and the abutment.
6. The highway bridge slope-regulating jacking structure according to claim 1, wherein: and a steel base plate is arranged between a jack of the highway bridge slope top jacking structure and the bottom end of the bridge.
7. The highway bridge slope-regulating jacking structure according to claim 1, wherein: in the jacking limiting device of the bridge broken column jacking structure, an annular gap is reserved between a limiting frame column and a limiting hole; in the jacking limiting device of the highway bridge slope bottom jacking structure, an annular gap is reserved between the limiting frame column and the inner ring of the limiting stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920644996.8U CN210031539U (en) | 2019-05-07 | 2019-05-07 | Highway bridge transfers slope jacking structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920644996.8U CN210031539U (en) | 2019-05-07 | 2019-05-07 | Highway bridge transfers slope jacking structure |
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| CN210031539U true CN210031539U (en) | 2020-02-07 |
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| CN201920644996.8U Active CN210031539U (en) | 2019-05-07 | 2019-05-07 | Highway bridge transfers slope jacking structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830698A (en) * | 2021-09-02 | 2021-12-24 | 安徽省路桥工程集团有限责任公司 | Highway bridge slope-regulating jacking device and using method thereof |
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2019
- 2019-05-07 CN CN201920644996.8U patent/CN210031539U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830698A (en) * | 2021-09-02 | 2021-12-24 | 安徽省路桥工程集团有限责任公司 | Highway bridge slope-regulating jacking device and using method thereof |
| CN113830698B (en) * | 2021-09-02 | 2023-03-07 | 安徽省路桥工程集团有限责任公司 | Highway bridge slope-regulating jacking device and using method thereof |
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