CN114875808A - Jacking height adjustable device used in bridge jacking process - Google Patents
Jacking height adjustable device used in bridge jacking process Download PDFInfo
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- CN114875808A CN114875808A CN202210701175.XA CN202210701175A CN114875808A CN 114875808 A CN114875808 A CN 114875808A CN 202210701175 A CN202210701175 A CN 202210701175A CN 114875808 A CN114875808 A CN 114875808A
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- threaded rod
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- jacking
- internal thread
- bridge
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge construction, in particular to a jacking height adjustable device used in a bridge jacking process. Including fixing the first platform in vertical jack top, a plurality of regulation holes have been seted up perpendicularly on the first platform, open internal thread sleeve about being provided with in the regulation hole, the periphery at both ends all is provided with the ka tai about the internal thread sleeve, threaded connection has main threaded rod in the internal thread sleeve, the top of main threaded rod is rotated and is connected with the cushion cap that is inverted circular truncated cone shape, the top surface and the case roof beam bottom plate of cushion cap are fixed, the through-hole has been seted up to the bottom level of main threaded rod, be fixed with the dwang in the through-hole, be provided with bearing diagonal mechanism between the top surface of first platform and the side of cushion cap. The whole device is simple and convenient to install and operate, and can meet the adjustment requirements of different height differences; the inclined supporting mechanism is arranged, so that the inclined supporting mechanism can be stressed cooperatively with the main threaded rod, and the stability of the device is improved; the device occupies small space and can be freely arranged according to the position of the vertical jack.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a jacking height adjustable device used in a bridge jacking process.
Background
The incremental launching construction method is adopted by more and more bridge constructions due to the characteristics of short construction period, construction land saving, small influence on traffic and navigation under bridges and the like. The bridge jacking is a process that the vertical jack jacks up the box girder, the transverse jack pushes forwards, then the vertical jack retracts, the transverse jack returns, and the box girder is continuously jacked forwards until the box girder translation is finished. When the height difference between the box girder bottom plate and the vertical jacking device is too large or the line shape of the box girder bottom plate is a circular curve, the height difference between the box girder bottom plate and the vertical jacking device is adjusted by increasing or decreasing the standard pad beam and the adjusting pad block commonly used in bridge jacking, and when the space between the box girder bottom plate and the jacking device is not enough to put in the pad beam, the adjusting pad block is required to be used for auxiliary adjustment. When the height of the bolster is high, its vertical stability also risks under the effect of other loads. According to the construction discovery of pushing the bottom of the curved-surface beam in the past, every time the box beam is pushed in, workers need to increase or decrease the pad beam and the pad block according to design requirements to adjust the height difference, and the construction efficiency is low.
Disclosure of Invention
The invention aims to solve the problems, and provides a jacking height adjustable device for a bridge jacking process, which improves the stability.
The invention solves the problems and adopts the technical scheme that:
the utility model provides a jacking height-adjustable device for bridge top pushes away in-process, including fixing the first platform in vertical jack top, a plurality of regulation holes have been seted up perpendicularly on the first platform, open internal thread sleeve about being provided with in the regulation hole, the periphery at both ends all is provided with the card platform about the internal thread sleeve, threaded connection has main threaded rod in the internal thread sleeve, the top of main threaded rod is rotated and is connected with the cushion cap that is inverted circular truncated cone shape, the top surface and the case roof beam bottom plate of cushion cap are fixed, the through-hole has been seted up to the bottom level of main threaded rod, be fixed with the dwang in the through-hole, be provided with bearing diagonal mechanism between the top surface of first platform and the side of cushion cap.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
according to the invention, the main threaded rod is controlled by the rotating rod, and the height difference between the vertical jack and the box girder bottom plate is adjusted by rotating the main threaded rod, so that the whole device is simple and convenient to install and operate, and can meet the adjustment requirements of different height differences; the inclined supporting mechanism is arranged, so that the inclined supporting mechanism can be stressed cooperatively with the main threaded rod, and the stability of the device is improved; the device occupies small space and can be freely arranged according to the position of the vertical jack.
Preferably, the further technical scheme of the invention is as follows:
the inclined supporting mechanism comprises a plurality of circular sleeves, the bottom ends of the circular sleeves are hinged to the top surface of the first platform around the main threaded rod, an auxiliary threaded rod is connected into an opening of each circular sleeve in a sliding mode, the top end of each auxiliary threaded rod is hinged to the side surface of the bearing platform, and a limiting nut is sleeved on each auxiliary threaded rod.
And a second platform is arranged between the top surface of the bearing platform and the box girder bottom plate.
The first platform comprises longeron and crossbeam, and the regulation hole is seted up on the longeron, and the longeron comprises a plurality of H shaped steel welding side by side, is provided with the crossbeam by the H shaped steel preparation between the adjacent longeron.
The tip and the middle part of longeron all are provided with the floor, and the telescopic both sides that just are located the internal thread on the longeron are provided with splint.
Drawings
Fig. 1 is a schematic front view of a device with adjustable jacking height for use in a bridge jacking process according to an embodiment of the present invention;
fig. 2 is a schematic side view of a device with adjustable jacking height for use in a bridge jacking process according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a device with adjustable jacking height for use in a bridge jacking process according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structural view of an internal threaded sleeve of a jacking height adjustable device for use in a bridge jacking process according to an embodiment of the present invention;
fig. 5 is a schematic front view of a bearing platform of a device with adjustable jacking height for use in a bridge jacking process according to an embodiment of the present invention;
fig. 6 is a schematic front view of a circular sleeve and a stop nut of a device with adjustable jacking height for use in a bridge jacking process according to an embodiment of the present invention;
labeled as: the device comprises a vertical jack 1, a first platform 2, an internal thread sleeve 3, a main threaded rod 4, a bearing platform 5, a rotating rod 6, a round sleeve 7, an auxiliary threaded rod 8, a limiting nut 9, a second platform 10, a ribbed plate 11 and a clamping plate 12.
Detailed Description
The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
A jacking height adjustable device used in the process of bridge jacking comprises a first platform 2 fixed above a vertical jack 1, a plurality of adjusting holes are vertically arranged on the first platform 2, an internal thread sleeve 3 with an upper opening and a lower opening is arranged in each adjusting hole, clamping tables are arranged on the peripheries of the upper end and the lower end of each internal thread sleeve 3, the clamping tables can fix the internal thread sleeve 3 in the adjusting hole, prevent that internal thread sleeve 3 from taking place the skew, the card platform also can pass the load to first platform 2, make first platform 2 and internal thread sleeve 3 atress in coordination, threaded connection has main threaded rod 4 among the internal thread sleeve 3, the top of main threaded rod 4 is rotated and is connected with cushion cap 5 that is inverted circular truncated cone shape, the top surface and the case roof beam bottom plate of cushion cap 5 are fixed, the through-hole has been seted up to main threaded rod 4's bottom level, be fixed with dwang 6 in the through-hole, be provided with bearing diagonal mechanism between the top surface of first platform 2 and the side of cushion cap 5.
The inclined supporting mechanism comprises a round sleeve 7, the round sleeve 7 is arranged around a main threaded rod 4 in a plurality of mode, the bottom end of the round sleeve is hinged to the top surface of the first platform 2, an auxiliary threaded rod 8 is connected to the opening of the round sleeve 7 in a sliding mode, the top end of the auxiliary threaded rod 8 is hinged to the side surface of the bearing platform 5, a limiting nut 9 is sleeved on the auxiliary threaded rod 8, and a rotating handle is arranged on the limiting nut 9.
A second platform 10 is arranged between the top surface of the bearing platform 5 and the bottom plate of the box girder, the second platform 10 is formed by building H-shaped steel, and the second platform 10 can increase the contact area with the bottom plate of the box girder and prevent local damage.
The tip and the middle part of longeron all are provided with floor 11, and the both sides that just are located internal thread sleeve 3 on the longeron are provided with splint 12, and local strength can be strengthened to floor 11, and splint 12 both can strengthen local strength and also can play the fixed action to internal thread sleeve 3.
The jacking operation steps of the device are as follows: when a large height difference exists between the box girder bottom plate and the vertical jack 1, the rotating rod 6 is adjusted to drive the main threaded rod 4 to enable the bearing platform 5 to move upwards, the bearing platform 5 moves upwards to drive the auxiliary threaded rod 8 to synchronously lift, after the lifting is finished, the limiting nut 9 is adjusted to enable the limiting nut to abut against the round sleeve 7 to limit the auxiliary threaded rod 8, and when the box girder bottom plate is attached to the second platform 10, the box girder can be continuously controlled to be pushed forwards for a certain distance; the force transmission path of the device during working is as follows: the bearing platform 5 transmits the load to the main threaded rod 4, the main threaded rod 4 transmits the load to the internal thread sleeve 3, and the internal thread sleeve 3 transmits the load to the H-shaped steel.
The descending operation steps of the device are as follows: when the platform height needs to be reduced according to design and construction requirements, firstly, the limit nuts 9 on the auxiliary threaded rods 8 are loosened to enable the auxiliary threaded rods 8 to freely stretch out and draw back in the circular sleeves 7, then the rotating rods 6 are adjusted to drive the main threaded rods 4 to enable the bearing platform 5 to descend, the height of the second platform 10 is reduced, the auxiliary threaded rods 8 can synchronously descend along with the auxiliary threaded rods until the limit nuts 9 abut against the circular sleeves 7, then the limit nuts 9 on the auxiliary threaded rods 8 are loosened, and the operation is repeated until the bearing platform 5 descends to the design height.
According to the invention, the main threaded rod 4 is controlled by the rotating rod 6, and the height difference between the vertical jack 1 and the box girder bottom plate is adjusted by rotating the main threaded rod 4, so that the whole device is simple and convenient to install and operate, and can meet the adjustment requirements of different height differences; the inclined supporting mechanism is arranged, so that the inclined supporting mechanism can be stressed cooperatively with the main threaded rod 4, and the stability of the device is improved; the device occupies small space and can be freely arranged according to the position of the vertical jack 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (5)
1. The utility model provides a jacking height-adjustable device for bridge top pushes away in-process which characterized in that: including fixing the first platform in vertical jack top, a plurality of regulation holes have been seted up perpendicularly on the first platform, open internal thread sleeve about being provided with in the regulation hole, the periphery at both ends all is provided with the ka tai about the internal thread sleeve, threaded connection has main threaded rod in the internal thread sleeve, the top of main threaded rod is rotated and is connected with the cushion cap that is inverted circular truncated cone shape, the top surface and the case roof beam bottom plate of cushion cap are fixed, the through-hole has been seted up to the bottom level of main threaded rod, be fixed with the dwang in the through-hole, be provided with bearing diagonal mechanism between the top surface of first platform and the side of cushion cap.
2. The device with adjustable jacking height for use in bridge jacking according to claim 1, wherein: the inclined supporting mechanism comprises a round sleeve, the round sleeve is arranged in a plurality of positions around the main threaded rod, the bottom end of the round sleeve is hinged to the top surface of the first platform, an auxiliary threaded rod is connected to the opening of the round sleeve in a sliding mode, the top end of the auxiliary threaded rod is hinged to the side surface of the bearing platform, and a limiting nut is sleeved on the auxiliary threaded rod.
3. The device with adjustable jacking height for use in bridge jacking according to claim 1, wherein: and a second platform is arranged between the top surface of the bearing platform and the box girder bottom plate.
4. The device for adjusting the jacking height in the bridge jacking process according to claim 1, wherein: the first platform comprises longeron and crossbeam, and the regulation hole is seted up on the longeron, and the longeron comprises a plurality of H shaped steel welding side by side, is provided with the crossbeam by the H shaped steel preparation between the adjacent longeron.
5. The device of claim 4, wherein the jacking height is adjustable during the jacking of the bridge, and the device comprises: the tip and the middle part of longeron all are provided with the floor, and the telescopic both sides that just are located the internal thread on the longeron are provided with splint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701175.XA CN114875808A (en) | 2022-06-21 | 2022-06-21 | Jacking height adjustable device used in bridge jacking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701175.XA CN114875808A (en) | 2022-06-21 | 2022-06-21 | Jacking height adjustable device used in bridge jacking process |
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| Publication Number | Publication Date |
|---|---|
| CN114875808A true CN114875808A (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210701175.XA Pending CN114875808A (en) | 2022-06-21 | 2022-06-21 | Jacking height adjustable device used in bridge jacking process |
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| CN (1) | CN114875808A (en) |
Citations (10)
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|---|---|---|---|---|
| CN204325945U (en) * | 2014-11-18 | 2015-05-13 | 中交武汉港湾工程设计研究院有限公司 | A kind of thrustor for box girder with variable cross section |
| WO2018000408A1 (en) * | 2016-07-01 | 2018-01-04 | 中交武汉港湾工程设计研究院有限公司 | Pile top pushing and positioning device |
| CN108381527A (en) * | 2018-05-21 | 2018-08-10 | 谷格智能机械(长兴)有限公司 | A kind of stabilized platform for welding robot |
| CN109137229A (en) * | 2018-11-16 | 2019-01-04 | 刘国军 | A kind of lift weaving loom |
| CN208684287U (en) * | 2018-08-07 | 2019-04-02 | 南京得帮机电有限公司 | A kind of efficiently big stroke jacking apparatus |
| CN109736212A (en) * | 2019-01-21 | 2019-05-10 | 郭正兴 | A kind of rolling friction type stride thrustor of bridge subsection installation |
| CN209703330U (en) * | 2019-01-22 | 2019-11-29 | 铁正检测科技有限公司 | A kind of adjustable height bridge slide device having guide function |
| CN210458973U (en) * | 2019-08-05 | 2020-05-05 | 中铁二十局集团第一工程有限公司 | Hydraulic jacking device with deviation correcting mechanism for bridge jacking construction |
| CN212549646U (en) * | 2020-04-09 | 2021-02-19 | 浙江普达实验设备有限公司 | Laboratory bench with automatic raising and lowering functions |
| CN213679704U (en) * | 2020-10-14 | 2021-07-13 | 天津鑫意天诚机械设备制造有限公司 | Lifting rack |
-
2022
- 2022-06-21 CN CN202210701175.XA patent/CN114875808A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204325945U (en) * | 2014-11-18 | 2015-05-13 | 中交武汉港湾工程设计研究院有限公司 | A kind of thrustor for box girder with variable cross section |
| WO2018000408A1 (en) * | 2016-07-01 | 2018-01-04 | 中交武汉港湾工程设计研究院有限公司 | Pile top pushing and positioning device |
| CN108381527A (en) * | 2018-05-21 | 2018-08-10 | 谷格智能机械(长兴)有限公司 | A kind of stabilized platform for welding robot |
| CN208684287U (en) * | 2018-08-07 | 2019-04-02 | 南京得帮机电有限公司 | A kind of efficiently big stroke jacking apparatus |
| CN109137229A (en) * | 2018-11-16 | 2019-01-04 | 刘国军 | A kind of lift weaving loom |
| CN109736212A (en) * | 2019-01-21 | 2019-05-10 | 郭正兴 | A kind of rolling friction type stride thrustor of bridge subsection installation |
| CN209703330U (en) * | 2019-01-22 | 2019-11-29 | 铁正检测科技有限公司 | A kind of adjustable height bridge slide device having guide function |
| CN210458973U (en) * | 2019-08-05 | 2020-05-05 | 中铁二十局集团第一工程有限公司 | Hydraulic jacking device with deviation correcting mechanism for bridge jacking construction |
| CN212549646U (en) * | 2020-04-09 | 2021-02-19 | 浙江普达实验设备有限公司 | Laboratory bench with automatic raising and lowering functions |
| CN213679704U (en) * | 2020-10-14 | 2021-07-13 | 天津鑫意天诚机械设备制造有限公司 | Lifting rack |
Non-Patent Citations (1)
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