CN211256681U - A jacking device that is used for single pier to change support - Google Patents
A jacking device that is used for single pier to change support Download PDFInfo
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- CN211256681U CN211256681U CN201921523388.8U CN201921523388U CN211256681U CN 211256681 U CN211256681 U CN 211256681U CN 201921523388 U CN201921523388 U CN 201921523388U CN 211256681 U CN211256681 U CN 211256681U
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Abstract
The utility model discloses a jacking device for support is changed to single pier relates to bridge maintenance construction technical field. The method comprises the following steps: the annular hoop platform is formed by connecting at least two groups of steel structure hoops into a whole through high-strength bolts and is tightly held at the periphery of the top of the single-column pier for replacing the bridge support; the synchronous jacking system comprises a hydraulic pump station and a display screen, wherein the hydraulic pump station is provided with a control valve group, and the control valve group is connected with the hydraulic jack through a hydraulic oil pipe; and the displacement sensor is arranged in the hydraulic jacks and is electrically connected with the display screen through a cable, and the display screen is used for displaying the jacking heights of the plurality of hydraulic jacks. A displacement sensor is arranged in the hydraulic jack and monitors the jacking height of each hydraulic jack in real time. And when the jacking height of the hydraulic jack exceeds the set deviation, correcting by adjusting the opening of a control valve of the hydraulic jack.
Description
Technical Field
The utility model relates to a bridge maintenance construction technical field specifically is a jacking device that is used for single-column mound to change support.
Background
The bridge support is a key structural component for connecting a beam body and an abutment in bridge construction, has the function of supporting a structure and adapts to the movement of the structure caused by expansion and contraction with heat, load, vibration and the like through the deformation or movement of the component of the support, and the load of the beam body is smoothly and safely transmitted to the pier, so that the actual stress condition of the bridge conforms to a calculated theoretical diagram. However, the support is used as a connecting body for opening and closing the bridge bearing, and bears the load transmitted by the beam body for a long time, so that accidents such as cracking, local concrete damage and the like are easily caused, meanwhile, disastrous accidents such as earthquake and the like also can cause the damage of the support, and the damaged support needs to be replaced for maintaining the normal use of the bridge and ensuring the driving safety.
The urban overpass mainly adopts single-column piers with smaller diameters, and the pier top has no space for placing a jack. The scheme that steel structure brackets are arranged at the bottom of a beam and the top of a bearing platform is generally adopted. Therefore, a large amount of excavation, foundation hardening, bracket transportation, installation and removal work is required, and a large amount of recovery work is required after the support replacement is completed. The method has the advantages of large engineering quantity, long time consumption, high engineering cost, great influence on bridge deck traffic and great inconvenience for citizens to go out.
Meanwhile, the support of the damage is usually treated by adopting a support replacing mode, a plurality of jacks and oil pumps are usually adopted for jacking operation, the support is replaced, namely the oil pumps are connected with the jacks, and in the jacking process, the hydraulic pressure of the oil cylinders of the jacks is controlled by the oil pumps, so that the jacking effect on the upper beam body is achieved. In the jacking process, traditional jacking device comes indirect control jack's jacking force through control oil pressure, but many jacks are isolated relatively, need artifical regulation and control in step in order to reach the effect of synchronous jacking, and the atress size of every jack is different usually, and the jacking synchronism of every jack is difficult to control, can produce the displacement difference like this at the jacking in-process, produces the harm to bridge structures.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming many jacks isolated relatively, need artifical regulation and control in step in order to reach the effect of synchronous jacking, the synchronous nature of jacking of every jack is difficult to control, can produce the displacement difference like this in the jacking in-process, produces the not enough of harm to the bridge structures, provides a jacking device that is used for the support is changed to the single-column mound.
The utility model provides a jacking device for support is changed to single pier, a serial communication port, include:
the annular hoop platform is formed by connecting at least two groups of steel structure hoops into a whole through high-strength bolts and is tightly held on the periphery of the top of the single-column pier to be used for replacing the bridge support;
the hydraulic jacks are arranged and are arranged on the annular hoop platform along the circumferential direction of the annular hoop platform, and the hydraulic jacks are used for jacking the upper beam body;
the synchronous jacking system comprises a hydraulic pump station and a display screen, wherein the hydraulic pump station is provided with a control valve group, and the control valve group is connected with the hydraulic jack through a hydraulic oil pipe;
the displacement sensor is installed in the hydraulic jack and electrically connected with the display screen through a cable, and the display screen is used for displaying the jacking height of the plurality of hydraulic jacks.
The preferred scheme is as follows: the steel construction staple bolt includes annular steel sheet and support flat board, supports the up end that the flat board is located annular steel sheet, support the dull and stereotyped interior circle and the outer wall welding cooperation of annular steel sheet, the both sides of annular steel sheet are equipped with the overlap joint steel sheet respectively, set up a plurality of mounting holes that penetrate high strength bolt on the overlap joint steel sheet.
The preferred scheme is as follows: the bottom surface of the supporting flat plate and the outer wall of the annular steel plate are welded with a plurality of first stiffening ribs which are uniformly distributed and arranged along the circumferential direction of the annular steel plate;
the welding has the second stiffening rib on the lateral wall of overlap joint steel sheet and the annular steel sheet outer wall, the second stiffening rib is equipped with a plurality ofly, and a plurality of second stiffening ribs are arranged along the axis direction equipartition of annular steel sheet.
The preferred scheme is as follows: the annular steel plate, the lap joint steel plate, the support flat plate, the first stiffening rib and the second stiffening rib of the steel structure hoop are all made of steel plate materials with the thickness not less than 20 mm.
The preferred scheme is as follows: set up a plurality of anchor holes of being connected with the single-column pier on the annular steel sheet, a plurality of anchor holes are arranged along the circumferencial direction of annular steel sheet and the axis direction equipartition of annular steel sheet, annular steel sheet through penetrate the crab-bolt in the anchor hole implant single-column pier in with single-column pier fixed connection.
The preferred scheme is as follows: the top parts of the hydraulic jacks are provided with upper cushion blocks, and the upper cushion blocks are used for supporting the upper beam body to move up and down;
the hydraulic jack is characterized in that lower supports are arranged at the bottoms of the hydraulic jacks, the heights of the lower supports are multiple, and the lower supports are used for being cushioned at the bottoms of the hydraulic jacks to adjust the heights of the hydraulic jacks.
The preferred scheme is as follows: the diameter of the annular hoop platform is smaller than that of the single-column pier, the inner wall of the annular hoop platform is subjected to shot blasting treatment, and the roughness of the inner wall of the annular hoop platform is 300-500 mu m.
The preferred scheme is as follows: eight hydraulic jacks are arranged, and the tonnage of each hydraulic jack is 100 t.
On the basis of the above technical scheme, compare with prior art, the utility model has the advantages as follows:
1) the utility model discloses a jacking device for support is changed to single-column mound, this jacking device are when changing the support, and many hydraulic jack pass through hydraulic pressure oil pipe and are connected with hydraulic power unit, establish the valve unit of controlling many hydraulic jack on the hydraulic power unit, and the valve unit is used for controlling the jacking force of many hydraulic jack respectively. Be equipped with displacement sensor in this hydraulic jack, displacement sensor is used for detecting hydraulic jack's jacking height, can real time monitoring reach every hydraulic jack's jacking height at the in-process that carries out the jacking to the upper beam body. And when the jacking height of the hydraulic jack exceeds the set deviation, correcting by adjusting the opening of a control valve of the hydraulic jack.
2) The utility model discloses a jacking device for support is changed to single-column mound, this jacking device have adopted annular staple bolt platform to support many hydraulic jack, and annular staple bolt platform is a whole through high strength bolt connection by two sets of steel construction staple bolts, holds tightly in the change of the periphery in single-column mound top in order to be used for bridge beam supports. This annular staple bolt platform sets up in single-column mound pier shaft top, directly places hydraulic jack and realizes the jacking to the upper beam body, has avoided setting up of undersetting, the excavation on ground etc to this annular staple bolt platform can be used repeatedly, is particularly suitable for numerous overpass of ramp quantity, has improved bridge beam supports's change efficiency, has reduced construction cost.
3) The utility model discloses a jacking device for a support is changed to single-column mound, through shot blasting treatment on the inner wall of the annular staple bolt platform of this jacking device, increased the roughness of the inner wall of annular staple bolt platform; meanwhile, a plurality of anchoring holes connected with the single-column piers are formed in the annular steel plate of the annular hoop platform, and the annular steel plate is implanted into the single-column piers through anchor bolts penetrating into the anchoring holes and is fixedly connected with the single-column piers. The annular hoop platform is prevented from sliding downwards on the single-column pier when the support is replaced, the shot blasting treatment and the anchor bolt implantation in the single-column pier integrally enhance the reliability and firmness of connection between the annular hoop platform and the single-column pier, and the annular hoop platform is suitable for jacking and maintaining the upper beam body with a large tonnage.
Drawings
FIG. 1 is a front view of the structure of the embodiment of the present invention;
fig. 2 is a top view of the structure of an embodiment of the present invention;
fig. 3 is a front view of the structural hoop structure of the embodiment of the present invention.
Reference numerals: 1-upper beam body, 2-upper cushion block, 3-hydraulic jack, 4-lower cushion block, 5-annular hoop platform, 6-high-strength bolt, 7-single column pier, 8-bridge support, 51-annular steel plate, 52-lap joint steel plate, 53-support flat plate, 54-second stiffening rib, 55-first stiffening rib, 56-anchoring hole and 57-mounting hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 and 2, an embodiment of the present invention provides a jacking device for replacing a support with a single-column pier, including:
the annular hoop platform 5 is formed by connecting at least two groups of steel structure hoops into a whole through high-strength bolts 6 and is tightly held on the periphery of the top of the single-column pier 7 to be used for replacing the bridge support 8; the hydraulic jack 3, hydraulic jack 3 is equipped with many, and many hydraulic jack 3 are used for the jacking upper beam body. Eight hydraulic jacks 3 are arranged in the embodiment, the tonnage of each hydraulic jack 3 is 100t, the specific number of the hydraulic jacks 3 is specifically set according to the tonnage of the hydraulic jack 3 and the tonnage of the upper beam body 1 in the actual engineering, and the requirement that the hydraulic jacks 3 can reliably jack the upper beam body 1 is met. Eight hydraulic jacks 3 are arranged on the annular hoop platform 5 along the circumferential direction of the annular hoop platform 5.
The synchronous jacking system comprises a hydraulic pump station and a display screen, wherein a control valve bank is arranged on the hydraulic pump station and is connected with the hydraulic jack 3 through a hydraulic oil pipe; and the displacement sensor is arranged in the hydraulic jacks 3 and is electrically connected with a display screen through a cable, and the display screen is used for displaying the jacking heights of the multiple hydraulic jacks 3.
Principle of operation
The utility model discloses a jacking device for support is changed to single-column mound, this jacking device are when changing bridge beam supports 8, and many hydraulic jack 3 are connected with hydraulic power unit through hydraulic pressure oil pipe, establish the valve unit of controlling many hydraulic jack 3 on the hydraulic power unit, and the valve unit correspondence is equipped with the jacking force that is used for controlling many hydraulic jack 3 respectively. This hydraulic jack 3 is equipped with displacement sensor in, and displacement sensor is used for detecting hydraulic jack 3's jacking height, can real time monitoring reach every hydraulic jack 3's jacking height at the in-process that carries out the jacking to the upper beam body 1 to show through the display. When the jacking height of the hydraulic jack 3 exceeds the set deviation, the opening of the control valve of the hydraulic jack 3 is manually or automatically adjusted to correct, and then the jacking heights of the plurality of hydraulic jacks 3 are controlled to synchronously jack.
Example 2
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a jacking device for replacing a support of a single-column pier, and the embodiment differs from embodiment 1 in that: the steel construction staple bolt includes annular steel plate 51 and support plate 53, and support plate 53 is fan-shaped structure, and support plate 53 is located annular steel plate 51's up end, and support plate 53's interior circle and annular steel plate 51's outer wall welding cooperation. The overlapped steel plates 52 are respectively arranged on two sides of the annular steel plate 51, the overlapped steel plates 52 and the annular steel plate 51 are in an integrated structure, or the overlapped steel plates 52 and the annular steel plate 51 are in a welding structure. A plurality of mounting holes 57 for penetrating the high-strength bolts 6 are formed in the lap-joint steel plate 52, and the two groups of steel structure hoops are connected into a whole by penetrating the high-strength bolts 6 through the mounting holes 57 in the lap-joint steel plate 52.
First stiffening ribs 55 are welded on the bottom surface of the supporting flat plate 53 and the outer wall of the annular steel plate 51, and the first stiffening ribs 55 are made of steel plate materials with rectangular, right-angled triangular or right-angled trapezoidal structures. The first stiffening ribs 55 are provided in plurality, the plurality of first stiffening ribs 55 are uniformly distributed and arranged along the circumferential direction of the annular steel plate 51, and the first stiffening ribs 55 are used for enhancing the structural strength of the supporting flat plate 53 and providing counter force for the plurality of hydraulic jacks 3.
The side wall of the lap joint steel plate 52 and the outer wall of the annular steel plate 51 are welded with second stiffening ribs 54, the second stiffening ribs 54 are integrally of a triangular structure, and the connecting parts of the second stiffening ribs 54 and the annular steel plate 51 are of an inward concave circular arc structure. The second stiffening rib 54 is equipped with a plurality ofly, and a plurality of second stiffening ribs 54 are arranged along annular steel sheet 51's axis direction equipartition, and second stiffening rib 54 is used for strengthening the structural strength of overlap joint steel sheet 52 and annular steel sheet 51, improves the clamping-force of two sets of steel construction staple bolts and single-column pier 7. The annular steel plate 51, the lap joint steel plate 52, the supporting flat plate 53, the first stiffening rib 55 and the second stiffening rib 54 of the steel structure hoop are made of steel plate materials with the thickness not less than 20mm, and the structural strength of the steel structure hoop is guaranteed.
Example 3
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a jacking device for replacing a support of a single-column pier, and the embodiment differs from embodiment 2 in that: the annular steel plate 51 is provided with a plurality of anchoring holes 56 connected with the single-column piers 7, and the plurality of anchoring holes 56 are uniformly distributed and arranged along the circumferential direction of the annular steel plate 51 and the axial direction of the annular steel plate 51. The annular steel plate 51 is fixedly connected with the independent column pier 7 by penetrating an anchor bolt into the anchoring hole 56 and implanting the independent column pier 7. The diameter of the annular hoop platform 5 is smaller than that of the single-column pier 7, the inner wall of the annular hoop platform 5 is subjected to shot blasting treatment, the roughness of the inner wall of the annular hoop platform 5 is 300-500 mu m, and the friction force between the inner wall of the annular hoop platform 5 and the single-column pier 7 is improved.
The inner wall of the annular hoop platform 5 of the jacking device is subjected to shot blasting treatment, so that the roughness of the inner wall of the annular hoop platform 5 is increased, and the friction between the inner wall of the annular hoop platform 5 and the single-column pier 7 is improved. Meanwhile, a plurality of anchoring holes 56 connected with the single-column piers 7 are formed in the annular steel plate of the annular hoop platform 5, and the annular steel plate 51 is implanted into the single-column piers 7 through anchor bolts penetrating into the anchoring holes 56 and is fixedly connected with the single-column piers 7. The annular hoop platform 5 is prevented from sliding downwards on the single-column pier 7 when the bridge support 8 is replaced, the shot blasting treatment and the implantation of anchor bolts in the single-column pier 7 integrally enhance the reliability and firmness of connection between the annular hoop platform 5 and the single-column pier 7, and the device is suitable for jacking and maintaining the large-tonnage upper beam body 1.
Example 4
Referring to fig. 1, an embodiment of the present invention provides a jacking device for replacing a support of a single-column pier, and the embodiment is different from embodiment 1 in that: the top of eight hydraulic jack 3 is equipped with cushion 2, goes up cushion 2 and is used for supporting the upper beam body 1 up-and-down motion, can reduce upper beam body 1 local pressure. The bottom of the eight hydraulic jacks 3 is provided with a lower support 4, the height of the lower support 4 is various, and the lower support 4 is used for cushioning the bottom of the hydraulic jack 3 to adjust the height of the hydraulic jack 3. The support 4 is used for being cushioned at the bottom of the hydraulic jack 3 to adjust the height of the hydraulic jack 3, the height is adjusted according to the height of the hydraulic jack 3, the extending amount of an oil cylinder piston of the hydraulic jack 3 can be reduced, the danger of overturning of the hydraulic jack 3 can be reduced, and the support can be repeatedly used.
The embodiment of the utility model provides a jacking device for support is changed to single pier can refer to following step when the construction:
step 1, building a personnel operation platform, and reasonably selecting a bridge inspection vehicle, a lifting vehicle, a bracket and the like as the operation platform according to operation conditions.
And 2, installing the annular hoop platform 5, drilling holes on the single-column piers 7 according to the positions of the anchoring holes 56 of the annular hoop platform 5, then penetrating anchor bolts into the anchoring holes 56 to implant the single-column piers 7 for fixation, carrying out load tests on the installed annular hoop platform 5, and ensuring that the bearing capacity of the installed annular hoop platform 5 meets requirements.
And 3, mounting hydraulic jacks 3, uniformly distributing and arranging the hydraulic jacks 3 along the circumferential direction of the annular hoop platform 5, mounting and fixing lower supports 4 on the annular hoop platform 5, placing the hydraulic jacks 3 in the middle of the lower supports 4, and arranging upper cushion blocks 2 between the hydraulic jacks 3 and the upper beam body 1.
And 4, testing the jack, wherein after the hydraulic jack 3 is installed, the displacement sensor is connected with the display through a cable, the jack test can be started after the displacement sensor is connected, whether oil leaks exist in the hydraulic jack 3 and the hydraulic oil pipe or not is judged, if the oil leaks, the hydraulic jacks 3 are replaced in time, all the hydraulic jacks 3 are confirmed to be stressed, the jack is stopped when the jacking upper beam body 1 is empty by 2mm, the pressure of the hydraulic jack 3 is kept unchanged, the hydraulic jack is parked for 5-10min for observation, and whether abnormal stress exists in the upper beam body 1 and the cover beam 7 is carefully checked. And observing whether the number of the display is changed or not, and starting jacking after the pressure is not changed.
And 5, formally jacking, wherein formally jacking is started after the jacking is finished, the jacking amount is controlled according to 5mm, the hydraulic jacks 3 must be synchronously jacked, the beam jacking speed is controlled to be about 1mm/min, the jacking height of the hydraulic jacks 3 and the jacking force of the hydraulic jacks 3 are simultaneously observed, double control is carried out, stepped jacking is adopted for jacking, the jacking height of each 2mm is one level, and the jacking can be stopped after the bridge support 8 is completely emptied.
And 6, replacing the bridge support 8, taking out the original bridge support 8 after the upper beam body 1 is stably jacked, and placing a new bridge support 8.
And 7, beam falling and beam falling resetting after the new support 8 is installed. All the hydraulic jacks 3 synchronously return oil and fall beams, the integral balance of the upper beam body 1 is kept in the beam falling process and is completed by a synchronous falling hydraulic system of a hydraulic pump station, the synchronous integral beam falling is carried out according to the jacking inverse process and is descended in stages, and the height of each 2mm is one stage until the upper beam body 1 is put into practice.
Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (8)
1. The utility model provides a jacking device that is used for single pier to change support which characterized in that includes:
the anchor ear platform comprises an annular anchor ear platform (5), wherein the annular anchor ear platform (5) is formed by connecting at least two groups of steel structure anchor ears into a whole through high-strength bolts (6), and is tightly held at the periphery of the top of a single-column pier (7) for replacing a bridge support (8);
the hydraulic lifting device comprises a plurality of hydraulic jacks (3), wherein the plurality of hydraulic jacks (3) are arranged on an annular hoop platform (5) along the circumferential direction of the annular hoop platform (5), and the plurality of hydraulic jacks (3) are used for jacking an upper beam body (1);
the synchronous jacking system comprises a hydraulic pump station and a display screen, wherein the hydraulic pump station is provided with a control valve group, and the control valve group is connected with the hydraulic jack (3) through a hydraulic oil pipe;
the displacement sensor is installed in the hydraulic jacks (3), and is electrically connected with the display screen through a cable, and the display screen is used for displaying the jacking heights of the multiple hydraulic jacks (3).
2. The jacking device for the replacement stand of the single pier as claimed in claim 1, wherein:
the steel construction staple bolt includes annular steel sheet (51) and supports dull and stereotyped (53), supports dull and stereotyped (53) and is located the up end of annular steel sheet (51), the interior circle of supporting dull and stereotyped (53) cooperates with the outer wall welding of annular steel sheet (51), the both sides of annular steel sheet (51) are equipped with overlap joint steel sheet (52) respectively, set up a plurality of mounting holes (57) that penetrate high strength bolt (6) on overlap joint steel sheet (52).
3. A jacking device for a single pier replacement support according to claim 2, wherein:
first stiffening ribs (55) are welded on the bottom surface of the supporting flat plate (53) and the outer wall of the annular steel plate (51), a plurality of first stiffening ribs (55) are arranged, and the plurality of first stiffening ribs (55) are uniformly distributed and arranged along the circumferential direction of the annular steel plate (51);
the welding has second stiffening rib (54) on the lateral wall of overlap joint steel sheet (52) and annular steel sheet (51) outer wall, second stiffening rib (54) are equipped with a plurality ofly, and a plurality of second stiffening rib (54) are arranged along the axis direction equipartition of annular steel sheet (51).
4. The jacking device for the replacement stand of the single pier as claimed in claim 1, wherein:
the annular steel plate (51), the lap joint steel plate (52), the support flat plate (53), the first stiffening rib (55) and the second stiffening rib (54) of the steel structure hoop are all made of steel plate materials with the thickness not less than 20 mm.
5. A jacking device for a single pier replacement support according to claim 2, wherein:
a plurality of anchor holes (56) connected with the independent column piers (7) are formed in the annular steel plate (51), the plurality of anchor holes (56) are uniformly distributed and arranged along the circumferential direction of the annular steel plate (51) and the axis direction of the annular steel plate (51), and the annular steel plate (51) is fixedly connected with the independent column piers (7) in the anchor holes (56) through penetrating anchor bolts to be implanted into the independent column piers (7).
6. The jacking device for the replacement stand of the single pier as claimed in claim 1, wherein:
the top parts of the hydraulic jacks (3) are provided with upper cushion blocks (2), and the upper cushion blocks (2) are used for supporting the upper beam body (1) to move up and down;
the hydraulic jack is characterized in that lower supports (4) are arranged at the bottoms of the hydraulic jacks (3), the heights of the lower supports (4) are multiple, and the lower supports (4) are used for cushioning the bottoms of the hydraulic jacks (3) to adjust the heights of the hydraulic jacks (3).
7. The jacking device for the replacement stand of the single pier as claimed in claim 1, wherein:
the diameter of the annular hoop platform (5) is smaller than that of the single-column pier (7), shot blasting treatment is carried out on the inner wall of the annular hoop platform (5), and the roughness of the inner wall of the annular hoop platform (5) is 300-500 mu m.
8. The jacking device for the replacement stand of the single pier as claimed in claim 1, wherein:
eight hydraulic jacks (3) are arranged, and the tonnage of each hydraulic jack (3) is 100 t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523388.8U CN211256681U (en) | 2019-09-12 | 2019-09-12 | A jacking device that is used for single pier to change support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523388.8U CN211256681U (en) | 2019-09-12 | 2019-09-12 | A jacking device that is used for single pier to change support |
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| CN211256681U true CN211256681U (en) | 2020-08-14 |
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| CN201921523388.8U Active CN211256681U (en) | 2019-09-12 | 2019-09-12 | A jacking device that is used for single pier to change support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962476A (en) * | 2021-03-08 | 2021-06-15 | 湖北楚天联发路桥养护有限公司 | Method for replacing support for bridge jacking |
| CN113338178A (en) * | 2021-06-24 | 2021-09-03 | 中建三局集团有限公司 | Shock insulation support replacing device and construction method thereof |
| CN114541284A (en) * | 2022-02-28 | 2022-05-27 | 浙江交工金筑交通建设有限公司 | Construction method of bracket system for replacing bridge plate type rubber support |
-
2019
- 2019-09-12 CN CN201921523388.8U patent/CN211256681U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962476A (en) * | 2021-03-08 | 2021-06-15 | 湖北楚天联发路桥养护有限公司 | Method for replacing support for bridge jacking |
| CN113338178A (en) * | 2021-06-24 | 2021-09-03 | 中建三局集团有限公司 | Shock insulation support replacing device and construction method thereof |
| CN113338178B (en) * | 2021-06-24 | 2022-05-20 | 中建三局集团有限公司 | Shock insulation support replacing device and construction method thereof |
| CN114541284A (en) * | 2022-02-28 | 2022-05-27 | 浙江交工金筑交通建设有限公司 | Construction method of bracket system for replacing bridge plate type rubber support |
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