CN219772707U - Auxiliary pier feeding device for girder in bridge pushing construction - Google Patents
Auxiliary pier feeding device for girder in bridge pushing construction Download PDFInfo
- Publication number
- CN219772707U CN219772707U CN202320067941.1U CN202320067941U CN219772707U CN 219772707 U CN219772707 U CN 219772707U CN 202320067941 U CN202320067941 U CN 202320067941U CN 219772707 U CN219772707 U CN 219772707U
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- plate
- feeding device
- auxiliary pier
- pushing construction
- open box
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an auxiliary pier feeding device for a girder in bridge pushing construction, which comprises a temporary support, a jacking module, a supporting module and a contact module, wherein the temporary support is arranged on the main girder; the temporary support comprises a bottom plate, steel pipe piles and steel pipe fasteners; the jacking module comprises a hydraulic jack, a C-shaped opening box, a base plate, an extension bar and a temporary cushion block; the supporting module comprises an embedded steel plate, inclined struts and cross struts, wherein the embedded steel plate is fixed on the bottom plate or the side surface of the opening box, and the cross struts and the inclined struts are supported on the embedded steel plate; the contact module comprises an ear plate, a pin shaft device and a roller device; the utility model has simple structure and convenient operation, can correct the vertical deflection of the structure in the pushing construction process, and avoids the situation that the long-span bridge cannot smoothly go up piers due to overlarge vertical deflection in the pushing construction process; in the design, the stroke of the jack is adjusted through the base plate and the lengthened rod piece, so that different engineering requirements can be effectively met, the application range is wide, and the pushing construction safety is effectively guaranteed.
Description
Technical Field
The utility model relates to the field of pushing construction, in particular to an auxiliary pier feeding device for a main girder in bridge pushing construction.
Background
Today, where traffic networks are continuously perfected, more and more roads and bridges are required to be built in complex environments. In municipal bridge construction engineering, the pushing construction method has the advantages of not occupying space under the bridge, not affecting the existing traffic, being simple in equipment, stable in construction, low in noise, capable of performing all-weather construction and the like, and is widely applied to domestic and foreign engineering. However, in the pushing construction of the large-span bridge, the front end of the structural cantilever is excessively bent downwards and even lower than the pier top elevation due to the overlong structural cantilever, and at the moment, the vertical deviation correction of the front end of the beam body cantilever is required to be carried out, so that the smooth pier feeding of the structure can be ensured. If the measures are not taken in time, the structure is in a cantilever state for a long time, which is not beneficial to the linear control of the bridge body and the safety of the structure.
In the pushing construction, particularly the pushing construction of the large-span bridge, the vertical deflection of the structure is necessarily controlled, so that the construction safety and the engineering quality in the pushing process are ensured.
Disclosure of Invention
The utility model aims to: the utility model aims to provide an auxiliary pier feeding device for a girder in bridge pushing construction. The device can realize the correction of the vertical deflection of the front end of the beam body, solves the problem that the front end of the cantilever of the beam body is excessively large in vertical deflection in pushing construction and cannot normally be used for pier feeding, and ensures the construction safety and engineering quality in the pushing construction process.
The technical scheme is as follows: the auxiliary pier feeding device for the girder in the bridge pushing construction comprises a temporary support, a jacking module, a supporting module and a contact module;
the temporary support comprises a steel pipe pile (1), a bottom plate (2) and a steel pipe fastener (15), wherein the bottom plate (2) is arranged at the uppermost part of the temporary support, and the steel pipe pile (1) and the steel pipe fastener (15) are arranged to form a temporary support main body;
the lifting module comprises a hydraulic jack (4), a C-shaped open box (5), a base plate (6), extension rods (7) and temporary cushion blocks (13), wherein the C-shaped open box (5) is welded on a bottom plate (2), the hydraulic jack (4) is arranged in the C-shaped open box (5), the base plate (6) and the extension rods (7) are sequentially arranged above the hydraulic jack (4), and the temporary cushion blocks (13) are arranged on two sides of the top of the C-shaped open box (5);
the support module comprises an embedded steel plate (17), inclined struts (14) and cross struts (16), wherein the embedded steel plate (17) is fixed on the bottom plate (2) or the side surface of the C-shaped open box (5), and the cross struts (16) and the inclined struts (14) are supported on the embedded steel plate (17);
the contact module comprises an ear plate (12), a pin shaft (11), a roller device (9) and a roller (10), wherein a hole is punched in the ear plate bottom plate (8), the ear plate is connected with the extension bar (7) through a bolt (18), a through hole is formed in the ear plate (12), the ear plate (12) is connected with the roller device (9) through the pin shaft (11), and the roller (10) is arranged above the roller device (9).
The extension bars (7) can be connected through bolts (18) to accumulate a plurality of extension bars upwards.
The roller device (9) is connected to the lug plate (12) through the pin shaft (11), and the lug plate (12) is fixed with the extension rod (7) through the bolt (18).
The C-shaped open box (5) is formed by welding 3 equal-height steel plates, and the backing plate (6) and the extension rod (7) can be replaced through the open surface.
The device can change the travel of the device through a base plate (6) and an extension bar (7) respectively.
The temporary cushion blocks (13) are symmetrically arranged on two sides of the top of the C-shaped open box (5) only when the cushion plates (6) and the extension bars (7) are subjected to addition and subtraction operation.
The device provided by the utility model has the beneficial effects that 1, the device can meet the requirements of vertical deviation rectifying operation under different beam body deflection inclination angles through the cooperation of the pin shaft and the roller device; 2. the device can flexibly adjust the stroke through the backing plate and the extension bar, and can meet different stroke requirements and meet actual engineering requirements.
Description of the drawings:
FIG. 1 is an elevational view of the overall structure of the present utility model;
FIG. 2 is a side view of the structure of the present utility model;
Detailed Description
The utility model discloses an auxiliary pier feeding device for a girder in bridge pushing construction, which comprises a temporary support, a jacking module, a supporting module and a contact module. The temporary support comprises a steel pipe pile 1, a bottom plate 2 and a steel pipe fastener 15, wherein the bottom plate 2 is arranged at the uppermost part of the temporary support, and the steel pipe pile 1 and the steel pipe fastener 15 are arranged to form a temporary support main body.
The jacking module comprises a hydraulic jack 4, a C-shaped open box 5, a base plate 6, extension bars 7 and temporary cushion blocks 13, wherein the C-shaped open box 5 is welded on a bottom plate 2, the hydraulic jack 4 is arranged in the C-shaped open box 5, the base plate 6 and the extension bars 7 are sequentially arranged above the hydraulic jack 4, and the temporary cushion blocks 13 are arranged on two sides of the top of the C-shaped open box 5.
The supporting module comprises an embedded steel plate 17, inclined struts 14 and cross struts 16, wherein the embedded steel plate 17 is fixed on the bottom plate 2 or the side surface of the C-shaped open box 5, and the cross struts 16 and the inclined struts 14 are supported on the embedded steel plate 17.
The contact module comprises an ear plate 12, a pin shaft 11, a roller device 9 and a roller 10, wherein a hole is punched in the ear plate bottom plate 8 and is connected with the extension rod 7 through a bolt 18, a through hole is formed in the ear plate 12, the ear plate 12 is connected with the roller device 9 through the pin shaft 11, and the roller 10 is arranged above the roller device 9.
The implementation steps of the utility model are as follows:
before the device is used, the device should be installed in place at first, the pre-buried steel plate 17, the diagonal braces 14 and 16 and the C-shaped opening box 5 and the bottom plate 2 should be firmly connected in the installation process, and the hydraulic jack 4 should be horizontally placed on the bottom plate 2. The installation is completed, the working state of the hydraulic jack 4 is checked, and the hydraulic jack 4 can work normally. After the installation, the travel of the device is adjusted through the backing plate 6, the extension bar 7 and the temporary cushion block 13, and the specific implementation is as follows: after the hydraulic jack 4 is lifted to the maximum stroke, a temporary cushion block 13 is placed, the hydraulic jack 4 returns, the cushion plate 6 and the extension rod 7 are added and subtracted, and the extension rod 7 is required to be screwed down through a bolt 18.
When the device is used, the device is transversely and symmetrically arranged along the axis direction of the bridge. When the structure is pushed to the upper part of the device, the pier cannot be normally installed due to overlarge deflection of the front end of the structure, and pushing construction is interrupted. At the moment, the hydraulic jack 4 is jacked upwards by increasing the pressure, and the stroke of the hydraulic jack 4 is kept unchanged when the structural bottom plate is jacked to be higher than the permanent pier, so that the jacking construction is continued.
Claims (6)
1. A supplementary mound device of going up that is arranged in bridge to push away construction girder, its characterized in that: the device comprises a temporary support, a jacking module, a supporting module and a contact module;
the temporary support comprises a steel pipe pile (1), a bottom plate (2) and a steel pipe fastener (15), wherein the bottom plate (2) is arranged at the uppermost part of the temporary support, and the steel pipe pile (1) and the steel pipe fastener (15) are arranged to form a temporary support main body;
the lifting module comprises a hydraulic jack (4), a C-shaped open box (5), a base plate (6), extension rods (7) and temporary cushion blocks (13), wherein the C-shaped open box (5) is welded on a bottom plate (2), the hydraulic jack (4) is arranged in the C-shaped open box (5), the base plate (6) and the extension rods (7) are sequentially arranged above the hydraulic jack (4), and the temporary cushion blocks (13) are arranged on two sides of the top of the C-shaped open box (5);
the support module comprises an embedded steel plate (17), inclined struts (14) and cross struts (16), wherein the embedded steel plate (17) is fixed on the bottom plate (2) or the side surface of the C-shaped open box (5), and the cross struts (16) and the inclined struts (14) are supported on the embedded steel plate (17);
the contact module comprises an ear plate (12), a pin shaft (11), a roller device (9) and a roller (10), wherein a hole is punched in the ear plate bottom plate (8), the ear plate is connected with the extension bar (7) through a bolt (18), a through hole is formed in the ear plate (12), the ear plate (12) is connected with the roller device (9) through the pin shaft (11), and the roller (10) is arranged above the roller device (9).
2. The auxiliary pier-feeding device for a main girder in bridge pushing construction of claim 1, wherein the auxiliary pier-feeding device comprises: the extension bars (7) can be connected through bolts (18) to accumulate a plurality of extension bars upwards.
3. The auxiliary pier-feeding device for a main girder in bridge pushing construction of claim 1, wherein the auxiliary pier-feeding device comprises: the roller device (9) is connected to the lug plate (12) through the pin shaft (11), and the lug plate (12) is fixed with the extension rod (7) through the bolt (18).
4. The auxiliary pier-feeding device for a main girder in bridge pushing construction of claim 1, wherein the auxiliary pier-feeding device comprises: the C-shaped open box (5) is formed by welding 3 equal-height steel plates, and the backing plate (6) and the extension rod (7) can be replaced through the open surface.
5. The auxiliary pier-feeding device for a main girder in bridge pushing construction of claim 1, wherein the auxiliary pier-feeding device comprises: the device can change the travel of the device through a base plate (6) and an extension bar (7) respectively.
6. The auxiliary pier-feeding device for a main girder in bridge pushing construction of claim 1, wherein the auxiliary pier-feeding device comprises: the temporary cushion blocks (13) are symmetrically arranged on two sides of the top of the C-shaped open box (5) only when the cushion plates (6) and the extension bars (7) are subjected to addition and subtraction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067941.1U CN219772707U (en) | 2023-01-10 | 2023-01-10 | Auxiliary pier feeding device for girder in bridge pushing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067941.1U CN219772707U (en) | 2023-01-10 | 2023-01-10 | Auxiliary pier feeding device for girder in bridge pushing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219772707U true CN219772707U (en) | 2023-09-29 |
Family
ID=88129665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320067941.1U Active CN219772707U (en) | 2023-01-10 | 2023-01-10 | Auxiliary pier feeding device for girder in bridge pushing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219772707U (en) |
-
2023
- 2023-01-10 CN CN202320067941.1U patent/CN219772707U/en active Active
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