CN110700127A - Auxiliary reinforcing device for simply supported beam bridge - Google Patents
Auxiliary reinforcing device for simply supported beam bridge Download PDFInfo
- Publication number
- CN110700127A CN110700127A CN201911157240.1A CN201911157240A CN110700127A CN 110700127 A CN110700127 A CN 110700127A CN 201911157240 A CN201911157240 A CN 201911157240A CN 110700127 A CN110700127 A CN 110700127A
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- inner sleeve
- push rod
- bridge
- lifting hook
- outer sleeve
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- 230000003014 reinforcing effect Effects 0.000 title description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
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Classifications
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a simple girder bridge reinforcement auxiliary device which comprises a supporting platform arranged on a simple girder bridge, wherein the upper end surface of the supporting platform is rotatably connected with a horizontal turntable, a U-shaped support is fixed on the upper end surface of the horizontal turntable, a bidirectional telescopic suspension arm is arranged above the U-shaped support, one end of the bidirectional telescopic suspension arm is provided with a main girder end lifting hook, the other end of the bidirectional telescopic suspension arm is provided with a ballast end lifting hook, the ballast end lifting hook is used for hanging ballast, and the lower end surface of the bidirectional telescopic suspension arm is rotatably connected in the U-shaped support through a pin shaft. Compared with the prior art, the invention reduces the external force required by the hanging beam through the lever principle, can reduce the load of the hanging beam on the existing bridge compared with the existing equipment, and can not generate extra bending moment on the bridge because the equipment can be arranged at the bridge pier, and can not cause the beam bodies at two sides to be downwarped when the hanging beam is arranged.
Description
Technical Field
The invention relates to the field of equipment for repairing and reinforcing bridges, in particular to an auxiliary device for reinforcing a simply supported bridge.
Background
As the traffic pressure in China is gradually increased and the service life of the existing bridge is continuously improved, a large number of old bridges and dangerous bridges gradually appear in China, and the maintenance and the reinforcement of the bridge gradually become hot spots. The existing bridge has a plurality of reinforcing modes, such as adhering reinforcing materials, increasing the cross section of a bridge structure, adding auxiliary reinforcing members and the like, wherein most reinforcing methods can only stabilize the bearing capacity of the bridge to live load and do not help the resistance of the beam body to dead weight. And the dead weight of the bridge is increased after the reinforcing structure is added, and the dead weight load occupies the maximum proportion in various loads of the bridge. In order to make the reinforcing measures for the existing bridge more effectively play a role, the reinforcing measures can not only bear live load of the bridge, but also make the bridge arch upwards (unload) in advance when reinforcing the bridge and then reinforce the bridge, and release dead weight after reinforcing, so that the reinforcing structure can bear live load and dead weight load of the bridge.
Therefore, it is desired to provide a device that can hoist the bridge in advance and partially unload the dead weight of the bridge.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a simply supported beam bridge reinforcing auxiliary device.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
the utility model provides a simple beam bridge consolidates auxiliary device, is including being used for installing the supporting platform on simple beam bridge, the rotation is connected with horizontal turntable in the supporting platform up end, and horizontal turntable up end is fixed with U type support, and U type support top is equipped with two-way scalable davit, and two-way scalable davit one end is equipped with girder end lifting hook, the other end is equipped with the ballast end lifting hook, the ballast end lifting hook is used for hanging the ballast, the lower terminal surface of two-way scalable davit rotates through the round pin axle and connects in U type support.
Furthermore, the bidirectional telescopic suspension arm comprises an outer sleeve, a telescopic main beam end inner sleeve is assembled in one end of the outer sleeve, a telescopic weight end inner sleeve is assembled in the other end of the outer sleeve, two push rod motors are fixed in the outer sleeve, the tail end of a push rod of one push rod motor is fixedly connected with one end of the main beam end inner sleeve, and a main beam end hook is arranged at the other end of the main beam end inner sleeve; the tail end of a push rod of the other push rod motor is fixedly connected with one end of the inner sleeve at the weight end, and the lifting hook at the weight end is arranged at the other end of the inner sleeve at the weight end.
Further, the maximum telescopic length of the inner sleeve at the weight end is greater than that of the inner sleeve at the main beam end.
Furthermore, a pin shaft seat is fixed at the center of the outer sleeve or at the bottom of the outer sleeve close to the main beam end lifting hook and is rotatably connected in the U-shaped support through a pin shaft.
Preferably, the two push rod motors are symmetrically fixed in the outer sleeve above the pin shaft.
Furthermore, four hydraulic lifting legs are arranged on the lower end face of the supporting platform.
Compared with the prior art, the invention reduces the external force required by the hanging beam through the lever principle, can reduce the load of the hanging beam on the existing bridge compared with the existing equipment, and can not generate extra bending moment on the bridge because the equipment can be arranged at the bridge pier, and can not cause the beam bodies at two sides to be downwarped when the hanging beam is arranged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the operation of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, the auxiliary reinforcing device for a simply supported girder bridge of this embodiment includes a supporting platform 1 for being installed on the simply supported girder bridge, a horizontal turntable 2 is rotatably connected to an upper end surface of the supporting platform 1, a U-shaped support 3 is fixed to an upper end surface of the horizontal turntable 2, a bidirectional telescopic boom is arranged above the U-shaped support 3, one end of the bidirectional telescopic boom is provided with a main beam end hook 10, and the other end of the bidirectional telescopic boom is provided with a ballast end hook 11, the ballast end hook 11 is used for hanging ballast, a lower end surface of the bidirectional telescopic boom is rotatably connected to the U-shaped support 3 through a pin 5, the bidirectional telescopic boom includes a bag 6, a telescopic main beam end inner sleeve 8 is arranged in one end of an outer sleeve 6, a telescopic ballast end inner sleeve 9 is arranged in the other end of the outer sleeve 6, two push rod motors 7 are fixed in the outer sleeve 6, the two push rod motors 7 are symmetrically fixed, the tail end of a push rod of one push rod motor 7 is fixedly connected with one end of the main beam end inner sleeve 8, and a main beam end hook 10 is installed at the other end of the main beam end inner sleeve 8; the tail end of a push rod of the other push rod motor 7 is fixedly connected with one end of an inner sleeve 9 at the weight end, and a hook 11 at the weight end is arranged at the other end of the inner sleeve 9 at the weight end. The bidirectional telescopic suspension arm and the U-shaped support 3 form a lever.
The device utilizes the lever principle, takes a pier or an adjacent non-damaged girder body as a fulcrum to lift the damaged girder to apply pre-camber, and reduces the external force required for lifting the bridge by increasing the moment arm.
In the actual manufacturing process, a pin shaft seat 4 is fixed at the center of the outer sleeve 6 or at the bottom of the outer sleeve 6 close to the main beam end lifting hook 10, the pin shaft seat 4 is rotatably connected in the U-shaped support 3 through a pin shaft 5, but the maximum telescopic length of the inner sleeve 9 at the weight end is larger than that of the inner sleeve 8 at the main beam end, and the whole lever is mainly ensured to be a labor-saving lever; of course, it is preferable that the bottom of the outer sleeve 6 close to the main beam end hook 10 is fixed with the pin shaft seat 4, so that the pin shaft seat itself is a labor-saving lever, and then the extension length of the inner sleeve 9 at the weight end is controlled to be larger than that of the inner sleeve 8 at the main beam end, so that the lever is more labor-saving, and the main beam can be lifted by more weight at the weight end.
In the practical use process, in order to facilitate the installation of the whole device and the lifting or lowering of the height of the supporting platform 1, four hydraulic lifting legs 12 are arranged on the lower end face of the supporting platform 1.
Before the whole set of device is installed, firstly, relevant calculation is carried out before equipment is installed, the required unloading weight of a damaged beam is known, field investigation is carried out, the position of the damaged beam, the condition of a surrounding beam body and the environmental characteristics of a bridge site area are determined, the installation position of the equipment is determined, the installed equipment is ensured not to damage the damaged beam, the equipment is recommended to be installed as close to a lifting point as possible, and the moment arm of the main beam end is reduced. After the installation position of the equipment is determined, the equipment can be installed, when the suspension arm is installed, the main beam end inner sleeve 8 is stretched to the position of the damaged beam through the push rod motor, the damaged beam is connected with the main beam end lifting hook 10, then the weight is installed on the weight end lifting hook 11, the height of the supporting platform 1 is lifted through the hydraulic steel legs, so that the height of the bidirectional telescopic suspension arm is increased, the weight end inner sleeve 9 is driven by the push rod motor to gradually extend to increase the external moment, and the weight is stopped until the damaged beam reaches the preset unloading degree; the equipment can adapt to various environmental characteristics through the horizontal rotating shaft and the steel leg capable of lifting the height, and external force required by the hanging beam is reduced through the lever principle.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a simple beam bridge consolidates auxiliary device, is including being used for installing the supporting platform on simple beam bridge, its characterized in that, the rotation is connected with horizontal rotary table in the supporting platform up end, and horizontal rotary table up end is fixed with U type support, and U type support top is equipped with two-way scalable davit, and two-way scalable davit one end is equipped with girder end lifting hook, the other end is equipped with and weighs the end lifting hook, weigh the end lifting hook and be used for hanging and weigh, the lower terminal surface of two-way scalable davit is connected in U type support through the round pin hub rotation.
2. The simply supported beam bridge reinforcement assistance device according to claim 1, characterized in that: the bidirectional telescopic suspension arm comprises an outer sleeve, a telescopic main beam end inner sleeve is assembled in one end of the outer sleeve, a telescopic weight end inner sleeve is assembled in the other end of the outer sleeve, two push rod motors are fixed in the outer sleeve, the tail end of a push rod of one push rod motor is fixedly connected with one end of the main beam end inner sleeve, and a main beam end hook is arranged at the other end of the main beam end inner sleeve; the tail end of a push rod of the other push rod motor is fixedly connected with one end of the inner sleeve at the weight end, and the lifting hook at the weight end is arranged at the other end of the inner sleeve at the weight end.
3. The simply supported beam bridge reinforcement assistance device according to claim 1, characterized in that: the maximum telescopic length of the inner sleeve at the weight pressing end is greater than that of the inner sleeve at the main beam end.
4. The simply supported beam bridge reinforcement assistance device according to claim 2, characterized in that: and a pin shaft seat is fixed at the center of the outer sleeve or at the bottom of the outer sleeve close to the main beam end lifting hook and is rotatably connected in the U-shaped support through a pin shaft.
5. The simply supported beam bridge reinforcement assistance apparatus according to claim 4, wherein: and the two push rod motors are symmetrically fixed in the outer sleeve above the pin shaft.
6. The simply supported beam bridge reinforcement assistance device according to any one of claims 1 to 5, wherein: and the lower end surface of the supporting platform is provided with four hydraulic lifting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157240.1A CN110700127A (en) | 2019-11-22 | 2019-11-22 | Auxiliary reinforcing device for simply supported beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157240.1A CN110700127A (en) | 2019-11-22 | 2019-11-22 | Auxiliary reinforcing device for simply supported beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700127A true CN110700127A (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911157240.1A Pending CN110700127A (en) | 2019-11-22 | 2019-11-22 | Auxiliary reinforcing device for simply supported beam bridge |
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|---|---|
| CN (1) | CN110700127A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08108991A (en) * | 1994-10-07 | 1996-04-30 | Aichi Corp | Crane device |
| CN203392753U (en) * | 2013-06-25 | 2014-01-15 | 山东力控矿山设备有限公司 | Mining loader |
| CN104179125A (en) * | 2014-08-29 | 2014-12-03 | 长安大学 | Balance beam device for supporting movable formwork main beam |
| CN205257819U (en) * | 2015-11-13 | 2016-05-25 | 嵊州市寰鼎玻璃科技有限公司 | A hoist and mount conveying equipment for glass production water line |
| CN206751187U (en) * | 2017-04-19 | 2017-12-15 | 江苏建筑职业技术学院 | It is a kind of can be from the boom hoisting of four direction adjustment angle |
| CN211142855U (en) * | 2019-11-22 | 2020-07-31 | 李铮 | Convenient bridge reinforcement auxiliary device who lifts by crane |
-
2019
- 2019-11-22 CN CN201911157240.1A patent/CN110700127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08108991A (en) * | 1994-10-07 | 1996-04-30 | Aichi Corp | Crane device |
| CN203392753U (en) * | 2013-06-25 | 2014-01-15 | 山东力控矿山设备有限公司 | Mining loader |
| CN104179125A (en) * | 2014-08-29 | 2014-12-03 | 长安大学 | Balance beam device for supporting movable formwork main beam |
| CN205257819U (en) * | 2015-11-13 | 2016-05-25 | 嵊州市寰鼎玻璃科技有限公司 | A hoist and mount conveying equipment for glass production water line |
| CN206751187U (en) * | 2017-04-19 | 2017-12-15 | 江苏建筑职业技术学院 | It is a kind of can be from the boom hoisting of four direction adjustment angle |
| CN211142855U (en) * | 2019-11-22 | 2020-07-31 | 李铮 | Convenient bridge reinforcement auxiliary device who lifts by crane |
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