CN210712585U - Bridge attitude adjusting system - Google Patents
Bridge attitude adjusting system Download PDFInfo
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- CN210712585U CN210712585U CN201920625716.9U CN201920625716U CN210712585U CN 210712585 U CN210712585 U CN 210712585U CN 201920625716 U CN201920625716 U CN 201920625716U CN 210712585 U CN210712585 U CN 210712585U
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- bridge
- support frame
- adjustment system
- hinged support
- attitude adjustment
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Abstract
The utility model relates to a bridge transformation field discloses a bridge attitude adjustment system, bridge attitude adjustment system includes: the lifting gantry comprises a first support frame and a second support frame which are arranged at intervals, and a bearing beam arranged between the tops of the first support frame and the second support frame. The carrying pole beam is arranged below the bearing beam. The lifting mechanism is used for driving the carrying pole beam to lift and rotate. The lifting mechanism is characterized by also comprising two groups of steel stranded wires which are respectively used for connecting the two groups of lifting mechanisms with the carrying pole beam. The utility model discloses can solve effectively when adjusting the bridge gesture with the jack, the power that exists and topple is not good to be controlled, the position of jack is not well set up and the high stroke is difficult to the problem of accomplishing when surpassing jack single stroke.
Description
Technical Field
The utility model relates to a bridge transformation field, concretely relates to bridge gesture adjustment system.
Background
The bridge transformation comprises the lifting and reinforcing of the bridge, and the like, and when the bridge is transformed, the bridge needs to be lifted, lowered, the gradient is adjusted, and the like.
At present, temporary piers are built or falsework is built on a bearing platform in bridge jacking and maintaining and reinforcing construction, a jack is used for jacking below a bridge, and when single jacking of the jack cannot reach a set height, the bridge needs to be repeatedly replaced and jacked for construction. When jacking the bridge, the bridge can have a power of toppling to the jack, can lead to having the power of toppling not to control well, the position of jack is not set up well and the problem that is difficult to accomplish when the high stroke exceeds jack single stroke, and if carry out pier stud and increase or shorten operating space when too little scheduling problem, the safety risk is great. And when the bridge pier needs to be shortened, the supporting point is difficult to find.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a bridge posture adjustment system can solve effectively when adjusting the bridge gesture with the jack, has the strength of toppling not well to control, the position of jack is not well set up and the high stroke is difficult to the problem of accomplishing when exceeding jack single stroke.
In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a bridge attitude adjustment system, bridge attitude adjustment system includes:
the lifting gantry comprises a first support frame and a second support frame which are arranged at intervals, and a bearing beam arranged between the tops of the first support frame and the second support frame;
the shoulder pole beam is arranged below the bearing beam;
the two groups of hoisting mechanisms are arranged at intervals along the length direction of the bearing beam and are used for driving the shoulder pole beam to lift and rotate;
and the two groups of steel stranded wires are used for respectively connecting the two groups of hoisting mechanisms with the carrying pole beams.
On the basis of the technical scheme, two groups of connecting devices connected with two groups of steel strands are arranged on the carrying pole beam, and each group of connecting devices comprises:
the hanging beam is fixedly connected with the steel strand;
and one end of the first spherical hinged support is fixedly connected with the hanging beam, and the other end of the first spherical hinged support is fixedly connected with the shoulder pole beam.
On the basis of the technical scheme, the hanging beam is fixedly connected with the steel strand through the anchor backing plate and the anchor head.
On the basis of the technical scheme, the lifting mechanism adopts a continuous lifting jack.
On the basis of the technical scheme, a second spherical hinged support is further arranged between the continuous lifting jack and the bearing beam.
On the basis of the technical scheme, a pushing device for pushing the second spherical hinged support is arranged around each group of continuous lifting jacks.
On the basis of the technical scheme, the pushing device comprises:
4 counter-force seats which are uniformly arranged around the second spherical hinged support at intervals;
and the 4 horizontal jacks are arranged between the second spherical hinged support and the counter-force seat and are abutted against the second spherical hinged support and the counter-force seat.
On the basis of the technical scheme, the second spherical hinged support is provided with a first sensor for detecting the vertical displacement of the steel strand, and the counter-force seat is provided with a second sensor for detecting the horizontal displacement of the second spherical hinged support.
On the basis of the technical scheme, the first support frame is fixedly connected with the bearing beam, and the second support frame is connected with the bearing beam in a sliding mode.
Compared with the prior art, the utility model has the advantages of: when the bridge attitude adjusting system is used, the first support frame and the second support frame are arranged on two sides of a bridge to be adjusted, the first support frame is fixedly connected with the bearing beam, and the second support frame is hinged with the bearing beam. The hoisting mechanism is connected with the carrying pole beam through a steel strand. Each hole beam is provided with two sets of bridge attitude adjusting systems, and when the bridge is a continuous bridge, the bridge attitude adjusting systems are correspondingly added according to holes. The steel strand is synchronously lifted by the lifting mechanism to drive the carrying pole beam to lift, so that the carrying pole beam supports the bridge. The bridge to be adjusted can be lifted to a preset position at one time by the lifting mechanism, and the bridge to be adjusted can be lifted continuously. And (3) processing the original bridge pier, descending or rotating the bridge according to the design requirement through the hoisting mechanism, and placing the bridge on the processed bridge pier to complete the posture adjustment construction of the bridge. When the posture of the bridge is adjusted, the bridge bears the load through the steel strands and is flexibly connected, the overturning force applied when the jack is used for jacking the bridge can be borne in a reasonable stress mode, and continuous and stable safe operation can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a bridge attitude adjustment system according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides an embodiment of a right side view structure schematic diagram of bridge attitude adjustment system.
In the figure: 1. lifting the gantry; 11. a support frame; 111. a first support frame; 112. a second support frame; 12. a spandrel girder; 2. a hoisting mechanism; 3. a shoulder pole beam; 31. a coupling device; 311. A hanging beam; 312. a first spherical hinge support; 4. steel strand wires; 5. a second spherical hinge support; 6. A pushing device; 61. a counter-force seat; 62. a horizontal jack.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the embodiment of the utility model provides an in the embodiment of the structural schematic diagram of bridge attitude adjustment system, fig. 2 is the embodiment of the utility model provides an in the embodiment of the right side of bridge attitude adjustment system look structural schematic diagram. Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a bridge attitude adjustment system, which includes:
the lifting gantry 1 comprises a first support frame 111 and a second support frame 112 which are arranged at intervals, and a bearing beam 12 arranged between the tops of the first support frame 111 and the second support frame 112;
a shoulder pole beam 3 provided below the load beam 12;
the two groups of hoisting mechanisms 2 are arranged at intervals along the length direction of the bearing beam 12, and the hoisting mechanisms 2 are used for driving the shoulder pole beam 3 to lift and rotate;
and two groups of steel strands 4 which respectively connect the two groups of hoisting mechanisms 2 with the carrying pole beams 3.
When the bridge attitude adjusting system is used, the first support frame 111 and the second support frame 112 are installed on two sides of a bridge to be adjusted, the first support frame 111 is fixedly connected with the bearing beam 12, and the second support frame 112 is hinged with the bearing beam 12. The hoisting mechanism 2 is connected with the carrying pole beam 3 through a steel strand. The steel strand 4 is lifted by the lifting mechanism 2 to drive the carrying pole beam 3 to lift, so that the carrying pole beam 3 supports the bridge. The bridge to be adjusted can be continuously lifted by the lifting mechanism 2, and the bridge to be adjusted can be lifted to a preset position at one time. And (3) processing the original bridge pier, descending or rotating the bridge according to the design requirement through the hoisting mechanism 2, and placing the bridge on the processed bridge pier to complete the posture adjustment construction of the bridge. When the bridge is adjusted, the bridge bears the load through the steel strands 4 and is flexibly tensioned, and compared with a scheme that a jack supports the bridge, the overturning force applied when the jack is used for supporting the bridge is reduced.
Preferably, the carrying pole beam 3 is provided with two sets of coupling devices 31 coupled to the two sets of steel strands 4, and each set of coupling device 31 includes:
the hanging beam 311, the hanging beam 311 is fixedly connected with the steel strand 4;
one end of the first spherical hinge support 312 is fixedly connected to the hanging beam 311, and the other end is fixedly connected to the shoulder pole beam 3.
The connecting device 31 is connected with the carrying pole beam 3 through the steel strand 4, the connecting device 31 is provided with a first spherical hinged support 312, the inclination of the steel strand 4 can be adapted when the bridge is adjusted, and the overturning force borne by the steel strand is further reduced.
Preferably, the hanging beam 311 is fixedly connected with the steel strand 4 through an anchor backing plate and an anchor head. The time of connection construction can be saved by adopting the anchor backing plate and the anchor head to be fixedly connected.
Preferably, the hoisting mechanism 2 employs a continuous lifting jack. The steel strand can be continuously pulled by adopting the continuous lifting jack so as to drive the carrying pole beam 3 to lift, and the condition that the design height is reached by continuously adjusting the stroke exceeding the jack when the jack is adopted to jack the bridge on the bridge pier is avoided.
Preferably, a second spherical hinged support 5 is arranged between the continuous lifting jack and the bearing beam 12. The second spherical hinged support 5 can adapt to the direction of stress, enables the continuous lifting jack to incline along with the stress mode, and reduces the overturning force applied to the continuous lifting jack.
Preferably, the pushing device 6 for pushing the second spherical hinged support 5 is arranged around each group of continuous lifting jacks. The pushing device 6 can push and continuously lift the jack to horizontally displace, so as to adjust the transverse position and the longitudinal position of the bridge to be adjusted.
Preferably, the thruster 6 comprises:
4 counter-force seats 61 which are uniformly arranged around the second spherical hinged support 5 at intervals;
and 4 horizontal jacks 62 which are arranged between the second spherical hinged support 5 and the reaction seat 61 and are abutted against the second spherical hinged support 5 and the reaction seat 61.
Preferably, a first sensor for detecting the vertical displacement of the steel strand 4 is arranged on the second spherical hinged support 5, and a second sensor for detecting the horizontal displacement of the second spherical hinged support 5 is arranged on the counterforce seat 61. The first sensor monitors the vertical displacement condition of the steel strand 4 in real time, and the second sensor can monitor the horizontal displacement condition of the second spherical hinged support 5 in real time, including the horizontal displacement and the longitudinal displacement of the second spherical hinged support 5. The position condition of the bridge to be adjusted can be mastered by monitoring the vertical displacement of the steel strand 4 and the horizontal displacement of the second spherical hinged support 5, and then the next adjustment is made.
Preferably, the first support bracket 111 is fixedly connected with the bearing beam 12, and the second support bracket 112 is hinged with the bearing beam 12. The first support frame 111 is fixedly connected with the bearing beam 12, so that the first support frame 111 can bear the horizontal force of the bearing beam 12, and the second support frame 112 is hinged with the bearing beam 12, so that the second support frame 112 can only bear the vertical force, and the second support frame 112 is prevented from bearing the horizontal force when the bearing beam 12 is subjected to wind load. In this embodiment, the first supporting frame 111 has two supporting columns, and in other embodiments, the second supporting frame 112 may also have two supporting columns.
The utility model provides a method of bridge gesture adjustment system, this method includes:
s1: and installing a bridge attitude adjusting system at a set position. The setting positions are generally arranged at both sides of the bridge pier, and the first support frame 111 and the second support frame 112 are arranged at both sides of the bridge to be adjusted.
Specifically, when the bridge attitude adjusting system is installed, a first support frame and a second support frame are installed on two sides of a bridge respectively; and fixedly connecting the first support frame with the bearing beam, and hinge-connecting the second support frame with the bearing beam. Then installing a continuous lifting jack at a second set position of each lifting portal; and finally, installing steel strands on each group of continuous lifting jacks, and connecting the carrying pole beams with the steel strands.
S2: the steel strand is lifted by the lifting mechanism to drive the carrying pole beam to lift, so that the carrying pole beam supports the bridge, even if the carrying pole beam bears the gravity of the bridge. The gravity of the bridge is converted from the original pier bearing into the bearing beam bearing.
S3: and (4) dismantling the connection between the bridge and the bridge pier, and lifting the bridge, namely dismantling the connection between the bridge and the bridge pier, and lifting the bridge to a certain distance.
S4: and treating the bridge piers, descending or rotating the bridge through a hoisting mechanism according to design requirements, and placing the bridge on the treated bridge piers. And (3) treating the original bridge pier, namely lengthening, cutting or reinforcing the original bridge pier, and then placing the bridge on the treated bridge pier according to the design requirement, thereby finishing the posture adjustment construction of the bridge.
In summary, when the bridge posture adjustment system is used, the lifting height of the bridge can reach the set height at one time, and the problem that the lifting of the bridge from the lower side of the bridge by using a jack is difficult to realize and the jack needs to be changed continuously is solved. Additionally the utility model discloses promote the operation in the top of bridge, it is good to promote operating condition, and the operation space of bridge below will increase a lot, can make things convenient for other constructions.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. A bridge attitude adjustment system, comprising:
the lifting gantry comprises a lifting gantry (1) and a lifting gantry, wherein the lifting gantry comprises a first support frame (111) and a second support frame (112) which are arranged at intervals, and a bearing beam (12) arranged between the tops of the first support frame (111) and the second support frame (112);
a shoulder pole beam (3) provided below the load-bearing beam (12);
the two groups of hoisting mechanisms (2) are arranged at intervals along the length direction of the bearing beam (12), and the hoisting mechanisms (2) are used for driving the shoulder pole beam (3) to lift and rotate;
and the two groups of steel strands (4) are used for respectively connecting the two groups of hoisting mechanisms (2) with the carrying pole beams (3).
2. The bridge attitude adjustment system according to claim 1, wherein the spreader beam (3) is provided with two sets of coupling devices (31) coupled to two sets of steel strands (4), each set of coupling devices (31) comprising:
the hanging beam (311) is fixedly connected with the steel strand (4);
and one end of the first spherical hinged support (312) is fixedly connected with the hanging beam (311), and the other end of the first spherical hinged support is fixedly connected with the shoulder pole beam (3).
3. The bridge attitude adjustment system of claim 2, wherein: the hanging beam (311) is fixedly connected with the steel strand (4) through an anchor backing plate and an anchor head.
4. The bridge attitude adjustment system of claim 1, wherein: the lifting mechanism (2) adopts a continuous lifting jack.
5. The bridge attitude adjustment system of claim 4, wherein: and a second spherical hinged support (5) is also arranged between the continuous lifting jack and the bearing beam (12).
6. The bridge attitude adjustment system of claim 5, wherein: and pushing devices (6) for pushing the second spherical hinged support (5) are arranged around each group of continuous lifting jacks.
7. The bridge attitude adjustment system according to claim 6, characterized in that said thruster means (6) comprise:
4 counter-force seats (61) symmetrically arranged around the second spherical hinged support (5) at intervals;
and the 4 horizontal jacks (62) are arranged between the second spherical hinged support (5) and the reaction seat (61) and are propped against the second spherical hinged support (5) and the reaction seat (61).
8. The bridge attitude adjustment system according to claim 7, wherein a first sensor for detecting the vertical displacement of the steel strand (4) is provided on the second spherical hinged support (5), and a second sensor for detecting the horizontal displacement of the second spherical hinged support (5) is provided on the counterforce seat (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625716.9U CN210712585U (en) | 2019-04-30 | 2019-04-30 | Bridge attitude adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625716.9U CN210712585U (en) | 2019-04-30 | 2019-04-30 | Bridge attitude adjusting system |
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| Publication Number | Publication Date |
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| CN210712585U true CN210712585U (en) | 2020-06-09 |
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| CN201920625716.9U Active CN210712585U (en) | 2019-04-30 | 2019-04-30 | Bridge attitude adjusting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258360A (en) * | 2019-04-30 | 2019-09-20 | 中铁大桥局第七工程有限公司 | Bridge form regulation system and method |
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2019
- 2019-04-30 CN CN201920625716.9U patent/CN210712585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258360A (en) * | 2019-04-30 | 2019-09-20 | 中铁大桥局第七工程有限公司 | Bridge form regulation system and method |
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