CN114250711B - Highway bridge girder erection machine and hole passing method - Google Patents
Highway bridge girder erection machine and hole passing method Download PDFInfo
- Publication number
- CN114250711B CN114250711B CN202111659772.2A CN202111659772A CN114250711B CN 114250711 B CN114250711 B CN 114250711B CN 202111659772 A CN202111659772 A CN 202111659772A CN 114250711 B CN114250711 B CN 114250711B
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- pier
- crown block
- main
- main beam
- girder
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a highway bridge girder erection machine and a via hole method. The main support leg comprises a front main support leg and a rear main support leg, the front main support leg and the rear main support leg are in sliding fit with the main beam, the auxiliary support leg comprises a front auxiliary support leg and a rear auxiliary support leg, the crown block comprises a front crown block and a rear crown block, and the front crown block and the rear crown block are in sliding fit with the main beam. And lifting devices are respectively arranged at two sides of the front crown block and the rear crown block. The road bridge girder erection machine moves the pier top support and the main support leg through the lifting device on the crown block, so that self-passing holes are realized.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a highway bridge girder erection machine and a self-propelled hole passing method.
Background
The bridge girder erection machine is equipment for placing prefabricated girder segments on prefabricated piers. Bridge girder erection machines belong to the category of cranes because the main function is to lift up the girder segments, then transport them to the location and then drop them down. Bridge girder erection machines are quite different from cranes in general. The requirements are severe and there is a running on the beam, or longitudinal movement. The bridge girder erection machine is divided into a plurality of types of bridge girder erection machines, such as highway bridge erection, conventional railway bridge erection, passenger-dedicated railway bridge erection and the like.
In the prior art, the road bridge girder erection machine has longer supporting legs, and the through holes are required to be transferred by crane assistance, so that the through holes can not be automatically through the crane if the bridge with larger length is encountered or the crane can not be used in offshore operation. Meanwhile, the highway bridge girder erection machine has single function, can not provide assistance for subsequent construction, and requires multiple crane cranes to cooperate for construction.
Chinese patent publication No. CN201510060031 proposes a novel large-tonnage bridge girder erection machine, which can realize self-passing holes, but cannot be applied to bridges with large bridge width, more precast girder sheets and wider transverse distribution.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the invention provides a highway bridge girder erection machine and a self-propelled via method.
The highway bridge girder erection machine provided by the embodiment of the invention comprises a girder, a main supporting leg, an auxiliary supporting leg, a crown block and a pier top bracket.
The main support comprises a front main support leg and a rear main support leg, wherein the front main support leg and the rear main support leg are both arranged on the bottom surface of the main beam and are in sliding fit with the main beam, and the main beam can move along the left-right direction or the front-rear direction relative to the main support leg.
The auxiliary supporting legs are arranged at two ends of the main beam.
The crown block is arranged at the top end of the main beam and is in sliding fit with the main beam.
The pier top support is arranged on the pier and used for bearing the main support legs.
And a lifting device is arranged on the crown block.
The front main supporting leg and the rear main supporting leg are identical in structure and comprise a transverse moving rail and a transverse moving device, the bottom end of the transverse moving device is in sliding fit with the transverse moving rail, the top end of the transverse moving device is in sliding fit with the main beam, the transverse moving device can move along the extending direction of the transverse moving rail, the main beam can move along the extending direction of the main beam relative to the transverse moving device, and the main beam is driven to move along the extending direction of the transverse moving rail through the movement of the transverse moving device along the extending direction of the transverse moving rail.
In some embodiments, the crown block includes a front crown block and a rear crown block, the front crown block and the rear crown block being identical in structure.
In some embodiments, lifting devices are arranged on two sides of the front crown block and the rear crown block.
In some embodiments, the lifting device is an electric hoist.
In some embodiments, the auxiliary legs include a front auxiliary leg and a rear auxiliary leg, the front auxiliary leg being disposed at a front end of the main beam, the rear auxiliary leg being disposed at a bottom of the main beam and proximate a rear end of the main beam.
In some embodiments, the front main leg and the rear main leg are each connected to the pier through 4 of the pier top brackets.
In some embodiments, a main beam anchoring facility is provided between the front main leg and the rear main leg and the main beam.
In some embodiments, a generator is also provided that provides kinetic energy through an electrical system and a hydraulic system.
A self-aligned via method comprising the steps of:
The first step, the girder transversely moves to the left half-bridge and is pushed to the rear pier;
secondly, the rear crown block moves the pier top bracket of the left half of the rear pier to the front bridge deck;
thirdly, the main beam is pushed forward to the middle position and is moved right to the right half-width bridge, and the main beam is pushed backward to the rear pier;
step four, the rear crown block moves the pier top bracket of the right half of the rear pier to the front bridge deck;
fifthly, the main beam is forwards pushed to the front pier, the front auxiliary supporting leg is supported on the front pier, and the pier top support on the right half bridge deck is moved to the front pier through the front crown block and matched with the front pier;
Sixthly, transversely moving the main beam leftwards, moving the pier top support on the left half bridge deck to the front bridge pier through the front crown block, and matching with the front bridge pier;
And seventhly, transversely moving the main girder to the middle position, moving the rear main support to the middle pier through the rear crown block, matching with the pier top support on the middle pier, moving the front main support on the middle pier to the front pier through the front crown block, and matching with the pier top support on the front pier.
And eighth step, pushing the girder to the girder erecting position, and installing a girder anchoring facility.
The invention has the beneficial effects that:
1. According to the road bridge girder erection machine, the hoisting device is additionally arranged on the crown block, and the pier top support is transferred through the hoisting device, so that self-passing holes are realized.
2. The hoisting device can be used for prefabricating the beam to erect and accomplish the paving work of rear axle deck boards.
3. And the crane is omitted, the cost is saved, and meanwhile, the construction flexibility is improved.
Drawings
FIG. 1 is a schematic view of a highway bridge girder erection machine according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a highway bridge girder erection machine according to an embodiment of the present invention;
FIG. 3 is a top view of a highway bridge girder erection machine according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first step of a self-aligned via method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second step of a self-aligned via method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a third step of a self-aligned via method according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a fifth step of a self-aligned via method according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a sixth step of a self-aligned via method according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a seventh step of a self-aligned via method according to an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating an eighth step of a self-aligned via method according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the highway bridge girder erection machine according to the embodiment of the invention includes: the main beam 1, the main supporting leg, the auxiliary supporting leg, the crown block and the pier top bracket.
Specifically, the main beam 1 is two steel frames having a triangular cross section, and the main beam 1 extends in the front-rear direction. The main support legs comprise a front main support leg 2 and a rear main support leg 3, which are both arranged at the bottom of the main beam and are in sliding fit with the main beam 1. The front main leg 2 and the rear main leg 3 are movable in the front-rear direction. And girder anchoring facilities are arranged between the front main support legs 2 and the rear main support legs 3 and the girder 1 and are used for preventing the girder from sliding. The auxiliary support legs comprise a front auxiliary support leg 4 and a rear auxiliary support leg 5, the front auxiliary support leg 4 is fixedly connected to the front end of the main beam 1, the rear auxiliary support leg 5 is fixedly connected to the bottom of the main beam 1 and is close to the rear end of the main beam 1. The crown block comprises a front crown block 6 and a rear crown block 7, which are both arranged at the top end of the main beam 1. And lifting devices 8 are arranged on two sides of each crown block, and the lifting devices 8 are electric hoist. The front main supporting leg 2 and the rear main supporting leg 3 are detachably and fixedly connected with the bridge pier through four pier top brackets 9 respectively.
The front main supporting leg 2 and the rear main supporting leg 3 have the same structure and are composed of a traversing rail 10 and a traversing device 11. The traversing device 11 is a wheel box. The bottom end of the traversing device 11 is in sliding fit with the traversing rail 10, and the traversing device 11 can move on the traversing rail 10 along the left-right direction. The top end of the traversing device 11 is in sliding fit with the main beam 1, and the main beam 1 can move relative to the traversing device 11 along the front-back direction. The main beam 1 can move in the left-right direction by traversing the traversing device 11 on the traversing rail.
The road bridge girder erection machine is provided with a generator, and the generator can drive each part on the road bridge girder erection machine to operate through an electric system and a hydraulic system.
According to the self-propelled hole passing method of the highway bridge girder erection machine, when the highway bridge girder erection machine finishes the laying of a cross-precast beam,
First, as shown in fig. 4, the girder 1 is laterally moved to the left half-bridge and is pushed backward to the rear pier a.
In the second step, as shown in fig. 5, the hoisting device 8 on the rear crown block 7 moves the two pier top brackets 9 of the left half of the rear pier a onto the front bridge deck.
Third, as shown in fig. 6, the girder 1 is pushed forward to the middle position and is moved right to the right half bridge, and then the girder 1 is pushed backward to the rear pier a.
And fourthly, moving the two pier top brackets 9 at the right half amplitude of the rear pier A to the front bridge deck through the rear crown block.
Fifth, as shown in fig. 7, the girder 1 is pushed forward to the front pier D, and supports the front auxiliary leg on the front pier D, and the two pier top brackets 9 on the right half bridge deck are moved to the front pier D by the front crown block 6 and are engaged with the front pier D.
Sixth, as shown in fig. 8, the main beam 1 is moved to the left, and then two pier top brackets 9 on the left half bridge deck are moved to the front pier D and are matched with the front pier D.
Seventh, as shown in fig. 9, the main girder 1 is laterally moved to the middle position, the rear main leg 3 is moved from the middle pier B to the middle pier C through the rear crown block 7 and is engaged with the pier top bracket 9 on the middle pier C, and then the front main leg 2 on the middle pier C is moved to the front pier D through the front crown block 6 and is engaged with the pier top bracket 9 on the front pier D.
Eighth step, the girder 1 is propelled until the lengths of front and rear cantilevers of the girder 1 are equal, and a girder anchoring facility is installed between the front main leg 2 and the rear main leg 3 and the girder 1. The self-passing hole of the road bridge girder erection machine is completed, and the completed state is shown in fig. 10.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as for simplicity of description, and nothing more than a particular meaning of the terms is intended to be used unless otherwise stated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A self-propelled via method of a highway bridge girder erection machine, the highway bridge girder erection machine comprising:
A main beam;
The main support legs comprise front main support legs and rear main support legs, the front main support legs and the rear main support legs are arranged on the bottom surface of the main beam and are in sliding fit with the main beam, and the main beam moves along the left-right direction or the front-back direction relative to the main support legs;
the auxiliary supporting legs are arranged at two ends of the main beam;
the crown block is arranged at the top end of the main beam and is in sliding fit with the main beam;
the pier top support is arranged on the pier and used for bearing the main support leg;
the crane is characterized in that a lifting device is arranged on the crown block;
The front main supporting leg and the rear main supporting leg have the same structure and comprise a transverse moving rail and a transverse moving device, the bottom end of the transverse moving device is in sliding fit with the transverse moving rail, the top end of the transverse moving device is in sliding fit with the main beam, the transverse moving device moves along the extending direction of the transverse moving rail, the main beam moves along the extending direction of the main beam relative to the transverse moving device, and the transverse moving device moves along the extending direction of the transverse moving rail to drive the main beam to move along the extending direction of the transverse moving rail;
the crown block comprises a front crown block and a rear crown block, and the front crown block and the rear crown block have the same structure;
hoisting devices are arranged on two sides of the front crown block and the rear crown block;
the self-propelled hole passing method of the highway bridge girder erection machine comprises the following steps:
The first step, the girder transversely moves to the left half-bridge and is pushed to the rear pier;
secondly, the rear crown block moves the pier top bracket of the left half of the rear pier to the front bridge deck;
thirdly, the main beam is pushed forward to the middle position and is moved right to the right half-width bridge, and the main beam is pushed backward to the rear pier;
step four, the rear crown block moves the pier top bracket of the right half of the rear pier to the front bridge deck;
fifthly, the main beam is forwards pushed to the front pier, the front auxiliary supporting leg is supported on the front pier, and the pier top support on the right half bridge deck is moved to the front pier through the front crown block and matched with the front pier;
Sixthly, transversely moving the main beam leftwards, moving the pier top support on the left half bridge deck to the front bridge pier through the front crown block, and matching with the front bridge pier;
seventh, the main beam is transversely moved to the middle position, the rear main support is moved to the middle pier through the rear crown block and matched with the pier top support on the middle pier, the front main support on the middle pier is moved to the front pier through the front crown block and matched with the pier top support on the front pier;
Eighth step, pushing the girder to the girder erecting position, and installing girder anchoring facilities;
And ninth, the lifting device lifts the bridge deck and paves the bridge deck.
2. The self-propelled via method of a highway bridge girder erection machine of claim 1, wherein the lifting device is an electric hoist.
3. The self-propelled via method of a highway bridge girder erection machine according to claim 1, wherein the auxiliary legs comprise a front auxiliary leg and a rear auxiliary leg, the front auxiliary leg is provided at a front end of the girder, and the rear auxiliary leg is provided at a bottom of the girder and is close to a rear end of the girder.
4. The self-propelled via method of a highway bridge girder erection machine according to claim 1, wherein the front main leg and the rear main leg are connected to the pier through 4 pier top brackets.
5. The self-propelled via method of a highway bridge girder erection machine of claim 1, wherein girder anchoring facilities are provided between the front main leg and the rear main leg and the girder.
6. The self-traveling via method of a highway bridge girder erection machine according to any one of claims 1 to 5, further comprising a generator which provides kinetic energy through an electric system and a hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111659772.2A CN114250711B (en) | 2021-12-31 | 2021-12-31 | Highway bridge girder erection machine and hole passing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111659772.2A CN114250711B (en) | 2021-12-31 | 2021-12-31 | Highway bridge girder erection machine and hole passing method |
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| Publication Number | Publication Date |
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| CN114250711A CN114250711A (en) | 2022-03-29 |
| CN114250711B true CN114250711B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111659772.2A Active CN114250711B (en) | 2021-12-31 | 2021-12-31 | Highway bridge girder erection machine and hole passing method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185017A (en) * | 1992-12-15 | 1994-07-05 | Oriental Kensetsu Kk | Bridge girder erection method and device thereof |
| CN107558378A (en) * | 2017-09-21 | 2018-01-09 | 郑州新大方重工科技有限公司 | A kind of Bridge Erector and its bridging method for being used to set up full precast beam |
| CN109024291A (en) * | 2018-08-06 | 2018-12-18 | 江苏恩纳斯重工机械有限公司 | A kind of integration Bridge Erector and its working method |
| CN110499708A (en) * | 2019-08-14 | 2019-11-26 | 中交第二航务工程局有限公司 | A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method |
| CN110616637A (en) * | 2019-08-14 | 2019-12-27 | 中交二航局第二工程有限公司 | Overlength multifunctional integrated bridge girder erection machine and construction method for installing prefabricated bridge |
| CN211420893U (en) * | 2019-12-19 | 2020-09-04 | 河南真牛起重机有限公司 | Rapid via hole bridge erecting machine |
| CN113585097A (en) * | 2021-09-14 | 2021-11-02 | 中交二航局第四工程有限公司 | Construction process suitable for mounting bridge girder erection machine |
-
2021
- 2021-12-31 CN CN202111659772.2A patent/CN114250711B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06185017A (en) * | 1992-12-15 | 1994-07-05 | Oriental Kensetsu Kk | Bridge girder erection method and device thereof |
| CN107558378A (en) * | 2017-09-21 | 2018-01-09 | 郑州新大方重工科技有限公司 | A kind of Bridge Erector and its bridging method for being used to set up full precast beam |
| CN109024291A (en) * | 2018-08-06 | 2018-12-18 | 江苏恩纳斯重工机械有限公司 | A kind of integration Bridge Erector and its working method |
| CN110499708A (en) * | 2019-08-14 | 2019-11-26 | 中交第二航务工程局有限公司 | A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method |
| CN110616637A (en) * | 2019-08-14 | 2019-12-27 | 中交二航局第二工程有限公司 | Overlength multifunctional integrated bridge girder erection machine and construction method for installing prefabricated bridge |
| CN211420893U (en) * | 2019-12-19 | 2020-09-04 | 河南真牛起重机有限公司 | Rapid via hole bridge erecting machine |
| CN113585097A (en) * | 2021-09-14 | 2021-11-02 | 中交二航局第四工程有限公司 | Construction process suitable for mounting bridge girder erection machine |
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| CN114250711A (en) | 2022-03-29 |
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