CN110499708A - A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method - Google Patents
A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method Download PDFInfo
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- CN110499708A CN110499708A CN201910750285.3A CN201910750285A CN110499708A CN 110499708 A CN110499708 A CN 110499708A CN 201910750285 A CN201910750285 A CN 201910750285A CN 110499708 A CN110499708 A CN 110499708A
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- 238000009434 installation Methods 0.000 title claims abstract description 46
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 40
- 238000010276 construction Methods 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000032258 transport Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation methods, comprising: girder；Main overhead traveling crane, middle main overhead traveling crane and preceding main overhead traveling crane afterwards, Liftable heavy component；Rear support leg is supported in bridge floor；Supporting leg in supporting leg and second, is fixed on supporting structure in first；First front leg strut and the second front leg strut, are supported on pier shaft bracket or cushion cap.The present invention realizes the matching construction of supporting structure consolidation, pier shaft installation and beam sections installation.
Description
Technical field
The present invention relates to technical field of bridge engineering.It is more particularly related to which a kind of prefabricated assembled bridge is more
Across synchronous mounting rack bridge machine and its installation method.
Background technique
Since machine lotus project major part location is in hills and water conservation district, it cannot be guaranteed that transporting prefabricated structure under bridge
Feeding beam under part and bridge only could preferably solve the above problem by bridge formation drive end unit feeding beam in such a way that bridge floor transports.
Transport and feeding beam problem can preferably be solved by installing prefabricated pier shaft and beam sections using common integration bridge formation, but
There are pier shaft installations and pier top block consolidation when conventional prefabricated assembled bridge multispan synchronous mounting rack bridge rack is set pacifies with beam sections
It fills effect to mismatch, is not particularly suited for the installation such as prefabricated pier shaft, pier top block or bent cap, beam sections, will lead to beam sections installation nest
The problem of work.
Summary of the invention
The object of the present invention is to provide a kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation methods, real
The matching construction of supporting structure consolidation, pier shaft installation and beam sections installation is showed.
In order to realize these purposes and other advantages according to the present invention, it is same to provide a kind of prefabricated assembled bridge multispan
Step installation Bridge Erector, comprising:
Girder；
Main overhead traveling crane, middle main overhead traveling crane and preceding main overhead traveling crane afterwards, Liftable heavy component；
Rear support leg is supported in bridge floor；
Supporting leg in supporting leg and second, is fixed on supporting structure in first；
First front leg strut and the second front leg strut, are supported on pier shaft bracket or cushion cap.
Preferably, further includes: rear small overhead traveling crane and preceding small overhead traveling crane.
Preferably, the girder is truss or box-type section structure.
Preferably, second front leg strut is foldable.
Preferably, second front leg strut drives it to move on girder by driving device, the driving device packet
It includes:
A pair of of sliding slot, the opposite two sides for being set to girder lower end；
A pair of of screw rod is fixed in a pair of of sliding slot, and the screw rod passes through its rotation of motor driven；And
A pair of of ball nut is respectively arranged on a pair of of screw rod；
Second front leg strut is removably connect by bolt with ball nut.
The present invention also provides a kind of installation methods using prefabricated assembled bridge multispan synchronous mounting rack bridge machine, along bridge
Roof beam structure set direction, when originating operating condition: installation, N2 pier shaft, N2 bearing is completed in N1 pier shaft, N1 supporting structure and N1 sections of beam sections
Installation is completed in structure, and installation is completed in N3 pier shaft, comprising the following steps:
Step 1: rear main overhead traveling crane installs N3 supporting structure, preceding main overhead traveling crane and middle main overhead traveling crane install N4 pier shaft；
After main overhead traveling crane installs N4 pier shaft in Step 2:, main overhead traveling crane installs N2 sections of beam sections after cooperation, at this time N4 pier shaft
It is in the milk, equal strength, N3 bearing knot (close by the binding of the secondary pouring construction of pier top block comprising beam sections pier consolidation, i.e. reinforcing bar
Mould, concreting and equal strength；Or prefabricated bent cap installation；Or Cast-in-place Bent Cap construction etc.).
Step 3: prefabricated assembled bridge multispan synchronous mounting rack bridge machine towards bridge erection direction cross across；
Step 4: including:
Step 41, the Forward of the first front leg strut, support on N5 cushion cap or pier shaft bracket；
Step 42, N1 and the wet seam of N2 closure are constructed；
Step 5: including:
Step 51, the second front leg strut fold, the second front leg strut Forward, across putting down after N4 pier shaft, support to N4 cushion cap or
On pier shaft bracket；
Step 52 carries out next round construction, and the installation of N4 supporting structure, N5 pier shaft are installed, meanwhile, NI and the wet seam of N2 closure
Wear prestressing tendon, equal strength, tensioning.
Preferably, pier shaft and supporting structure are transported using beam car in the step 1, using feeding beam under bridge or bridge floor
It transports to bridge formation drive end unit feeding beam.
Preferably, supporting structure is bent cap or pier top block.
Preferably, the step 3 includes:
Step 31, supporting leg lifting is moved on N3 supporting structure in second；
Step 32, the second front leg strut are advanced on N4 cushion cap or pier shaft bracket, are temporarily connect with the first front leg strut；
Moved past before step 33, girder and rear support leg across.
Preferably, in the step 5, further includes:
After the completion of step 53, NI and N2 closure tensioning, NI-N2 sections have fortune beam condition, carry out next circulation construction.
The present invention is include at least the following beneficial effects: pier shaft installation being separated with the construction of pier top block, and then breaks through effect not
The problem of matching.The prefabricated installation integrated construction for realizing pier shaft, pier top block or bent cap, beam sections, greatly improves bridge construction
Rate is assembled, it is more effective, environment is more optimized, worker's labor operating environment is substantially improved compared to traditional cast in place process.Suitable for across
Bridge construction within the scope of diameter 30-70m, construction efficiency can reach 8 days/across.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the erection schematic diagram of prefabricated assembled bridge multispan synchronous mounting rack bridge machine；
Fig. 2 is beam car transport prefabricated components (comprising pier shaft and beam sections etc.) schematic diagram；
Fig. 3 is that preceding main overhead traveling crane and middle main overhead traveling crane lift pier shaft schematic diagram on the left of transport N4；
Fig. 4 is that N4 pier shaft is installed rear schematic diagram；
Fig. 5 is the schematic diagram of middle main overhead traveling crane and rear main overhead traveling crane haulage stage beam；
Fig. 6 is that supporting leg lifts the schematic diagram being moved on N3 pier top block in second；
Fig. 7 is the schematic diagram that the second front leg strut is advanced on N4 cushion cap；
Fig. 8 is that prefabricated assembled bridge multispan synchronous mounting rack bridge machine crosses the schematic diagram across after towards bridge erection direction；
Fig. 9 is that the Forward of the first front leg strut and the second front leg strut fold schematic diagram；
Figure 10 is the second front leg strut Forward schematic diagram.
1 girder, small overhead traveling crane after 2, small overhead traveling crane before 3, main overhead traveling crane after 4, main overhead traveling crane in 5, main overhead traveling crane before 6,7 rear support legs, 8 first
Middle supporting leg, supporting leg in 9 second, 10 first front leg struts, 11 second front leg struts, 12 N1 pier shafts, 13 N2 pier top blocks, 14 N2 sections
Beam sections, 15 beam cars, 16 N4 pier top blocks, 17 N5 pier shafts.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
In the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, is not that device or the element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
The prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application be suitable for prefabricated pier shaft, bent cap and beam sections or
The erection of combination beam etc..
As shown in Figure 1, the present invention provides a kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine, comprising:
Girder；
Main overhead traveling crane, middle main overhead traveling crane and preceding main overhead traveling crane afterwards, for lifting heavy component.Main overhead traveling crane is the main lifting of Bridge Erector
Machinery, the heavy components such as lifting beam body, pier shaft, middle supporting leg.
Rear support leg, is supported in bridge floor, and the rear support leg is the primary structure member for supporting Bridge Erector.
Supporting leg in supporting leg and second, is fixed on supporting structure in first, middle supporting leg be support Bridge Erector it is main by
Power component.
First front leg strut and the second front leg strut, are supported on cushion cap.The front leg strut is the stress structure for supporting Bridge Erector
Part.
In one preferred embodiment of the prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application, rear small overhead traveling crane is with before
Small overhead traveling crane, small overhead traveling crane are to lift the lighter component of 20t or less, are had the characteristics that flexible, light, high-efficient.
In one preferred embodiment of the prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application, the girder is purlin
Frame or box-type section structure.
In one preferred embodiment of the prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application, propped up before described second
Leg is foldable.
In one preferred embodiment of the prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application, propped up before described second
Leg drives it to move on girder by driving device, and the driving device includes:
A pair of of sliding slot, the opposite two sides for being set to girder lower end；
A pair of of screw rod is fixed in a pair of of sliding slot, and the screw rod passes through its rotation of motor driven；And
A pair of of ball nut is respectively arranged on a pair of of screw rod；
Second front leg strut is removably connect by bolt with ball nut.
In the above-mentioned technical solutions, screw rod rotation is able to drive ball nut and moves in a straight line on screw rod, to drive
Second front leg strut moves on girder, lifts the second front leg strut without main overhead traveling crane, more convenient.
A kind of installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine rises along bridge erection direction
When beginning operating condition: installation is completed in N1 pier shaft, N1 pier top block and N1 sections of beam sections, and installation, N3 is completed in N2 pier shaft, N2 pier top block
Installation is completed in pier shaft, comprising the following steps:
Step 1: as shown in figs. 34, preceding main overhead traveling crane and middle main overhead traveling crane lift pier shaft on the left of transport N4, it is temporarily stored in
N3-N4 is across between；Right side N4 pier shaft transports N3-N4 across rear, rear main overhead traveling crane installation N3 pier top block, preceding main overhead traveling crane and rear main overhead traveling crane
Successively installation right side and left side N4 pier shaft.
Step 2: main overhead traveling crane installs N2 sections of beam sections after cooperation after main overhead traveling crane installs N4 pier shaft in as shown in figure 5,
At this time N4 pier shaft be in the milk, equal strength, N3 supporting structure construction (secondary pour of pier top block comprising beam sections pier consolidation is applied
The binding of work, i.e. reinforcing bar, Guan Mo, concreting and equal strength；Or prefabricated bent cap installation；Or Cast-in-place Bent Cap construction etc.).
Step 3: prefabricated assembled bridge multispan synchronous mounting rack bridge machine towards bridge erection direction cross across；
Step 4: including:
Step 41, as shown in figure 9, the first front leg strut move forward, support on N5 cushion cap；
Step 42, N1 and the wet seam of N2 closure are constructed；
Step 5: including:
Step 51, as shown in Figure 10, the second front leg strut folds, the second front leg strut Forward, across putting down after N4 pier shaft, supports
Onto N4 cushion cap；
Step 52 carries out next round construction, and the installation of N4 pier top block, N5 pier shaft are installed, meanwhile, the wet seam of NI and N2 closure is worn
Prestressing tendon, equal strength, tensioning；
The installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application, essential core principle exist
In Bridge Erector setting 3.5 across by the installation of prefabricated pier shaft, supporting structure construction, segment installation construction (or composite beam, combination beam
Etc. structure types) separation, each process cross construction, effect is substantially improved.
One preferred embodiment of the installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application
In, driving device is used when the second front leg strut moves forward.The program solves N3-N5 two in operating condition across about 100 meters of simply supported span
Cause beam stress and deformation larger, to intensity and the higher problem of rigidity requirement, moves the second front leg strut by driving device
There is no need to the lifting of main overhead traveling crane during dynamic, load is greatly reduced.
One preferred embodiment of the installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application
In, as shown in Fig. 2, pier shaft and supporting structure are transported using beam car in the step 1, using feeding beam under bridge or tail portion feeding beam.
One preferred embodiment of the installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application
In, supporting structure is bent cap or pier top block or other replacing structures, however it is not limited to both structures.
One preferred embodiment of the installation method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine of the application
In, the step 3 includes:
Step 31, as shown in fig. 6, in second supporting leg lifting be moved on N3 pier top block；
Step 32, as shown in fig. 7, the second front leg strut is advanced on N4 cushion cap, temporarily connect with the first front leg strut；
Step 33, as shown in figure 8, moved past before girder and rear support leg across.
The construction method using prefabricated assembled bridge multispan synchronous mounting rack bridge machine installation precast bridge of the application
In one preferred embodiment, in the step 5, further includes:
After the completion of step 53, NI and N2 closure tensioning, NI-N2 sections have fortune beam condition, carry out next circulation construction.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and embodiment shown and described herein.
Claims (10)
1. a kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine characterized by comprising
Girder；
Main overhead traveling crane, middle main overhead traveling crane and preceding main overhead traveling crane afterwards, Liftable heavy component；
Rear support leg is supported in bridge floor；
Supporting leg in supporting leg and second, is fixed on supporting structure in first；
First front leg strut and the second front leg strut, are supported on pier shaft bracket or cushion cap.
2. prefabricated assembled bridge multispan synchronous mounting rack bridge machine as described in claim 1, which is characterized in that further include: after
Small overhead traveling crane and preceding small overhead traveling crane.
3. prefabricated assembled bridge multispan synchronous mounting rack bridge machine as described in claim 1, which is characterized in that the girder is
Truss or box-type section structure.
4. the prefabricated assembled bridge multispan synchronous mounting rack bridge machine as described in claims 1 to 3 is any, which is characterized in that institute
It is foldable to state the second front leg strut.
5. prefabricated assembled bridge multispan synchronous mounting rack bridge machine as claimed in claim 4, which is characterized in that before described second
Supporting leg drives it to move on girder by driving device, and the driving device includes:
A pair of of sliding slot, the opposite two sides for being set to girder lower end；
A pair of of screw rod is fixed in a pair of of sliding slot, and the screw rod passes through its rotation of motor driven；And
A pair of of ball nut is respectively arranged on a pair of of screw rod；
Second front leg strut is removably connect by bolt with ball nut.
6. a kind of installation side using any prefabricated assembled bridge multispan synchronous mounting rack bridge machine of Claims 1 to 55
Method, along bridge erection direction, when originating operating condition: installation, N2 pier is completed in N1 pier shaft, N1 supporting structure and N1 sections of beam sections
Installation is completed in body, N2 supporting structure, and installation is completed in N3 pier shaft, which comprises the following steps:
Step 1: rear main overhead traveling crane installs N3 supporting structure, preceding main overhead traveling crane and middle main overhead traveling crane install N4 pier shaft；
After main overhead traveling crane installs N4 pier shaft in Step 2:, main overhead traveling crane installs N2 sections of beam sections after cooperation, and N4 pier shaft carries out at this time
Grouting, equal strength, the construction of N3 supporting structure；
Step 3: prefabricated assembled bridge multispan synchronous mounting rack bridge machine towards bridge erection direction cross across；
Step 4: including:
Step 41, the Forward of the first front leg strut, support on N5 cushion cap or pier shaft bracket；
Step 42, N1 and the wet seam of N2 closure are constructed；
Step 5: including:
Step 51, the second front leg strut fold, the second front leg strut Forward, across putting down after N4 pier shaft, support to N4 cushion cap or pier shaft
On bracket；
Step 52 carries out next round construction, and the installation of N4 supporting structure, N5 pier shaft are installed, meanwhile, the wet seam of NI and N2 closure is worn pre-
Stress beam, equal strength, tensioning.
7. the installation method of prefabricated assembled bridge multispan synchronous mounting rack bridge machine as claimed in claim 6, which is characterized in that
Pier shaft and supporting structure are transported using beam car in the step 1, are transported using feeding beam under bridge or bridge floor to bridge formation drive end unit and are fed
Beam.
8. the installation method of prefabricated assembled bridge multispan synchronous mounting rack bridge machine as claimed in claim 6, which is characterized in that
Supporting structure is bent cap or pier top block.
9. the installation method of prefabricated assembled bridge multispan synchronous mounting rack bridge machine as claimed in claim 6, which is characterized in that
The step 3 includes:
Step 31, supporting leg lifting is moved on N3 supporting structure in second；
Step 32, the second front leg strut are advanced on N4 cushion cap or pier shaft bracket, are temporarily connect with the first front leg strut；
Moved past before step 33, girder and rear support leg across.
10. the installation method of prefabricated assembled bridge multispan synchronous mounting rack bridge machine as claimed in claim 6, feature exist
In in the step 5, further includes:
After the completion of step 53, NI and N2 closure tensioning, NI-N2 sections have fortune beam condition, carry out next circulation construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750285.3A CN110499708A (en) | 2019-08-14 | 2019-08-14 | A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910750285.3A CN110499708A (en) | 2019-08-14 | 2019-08-14 | A kind of prefabricated assembled bridge multispan synchronous mounting rack bridge machine and its installation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195798A (en) * | 2020-08-21 | 2021-01-08 | 中交第二航务工程局有限公司 | Segmental assembling integrated bridge girder erection machine and construction method thereof |
| CN112813832A (en) * | 2020-12-29 | 2021-05-18 | 中交第二航务工程局有限公司 | Rapid integrated installation method of segmental beam and prefabricated pier stud |
| CN113250095A (en) * | 2021-06-24 | 2021-08-13 | 浙江中建路桥设备有限公司 | Pier roof beam integration is built with machine of putting up bridge |
| 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 |
| CN114250711A (en) * | 2021-12-31 | 2022-03-29 | 史托克(天津)工程技术有限公司 | Highway bridge girder erection machine and hole passing method |
| CN114541277A (en) * | 2022-04-01 | 2022-05-27 | 郑州新大方重工科技有限公司 | Fully-assembled bridging system, beam erecting and hole passing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195798A (en) * | 2020-08-21 | 2021-01-08 | 中交第二航务工程局有限公司 | Segmental assembling integrated bridge girder erection machine and construction method thereof |
| CN112813832A (en) * | 2020-12-29 | 2021-05-18 | 中交第二航务工程局有限公司 | Rapid integrated installation method of segmental beam and prefabricated pier stud |
| CN112813832B (en) * | 2020-12-29 | 2022-12-09 | 中交第二航务工程局有限公司 | Rapid integrated installation method of segmental beam and prefabricated pier column |
| CN113250095A (en) * | 2021-06-24 | 2021-08-13 | 浙江中建路桥设备有限公司 | Pier roof beam integration is built with machine of putting up bridge |
| 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 |
| CN114250711A (en) * | 2021-12-31 | 2022-03-29 | 史托克(天津)工程技术有限公司 | Highway bridge girder erection machine and hole passing method |
| CN114250711B (en) * | 2021-12-31 | 2024-06-04 | 史托克(天津)工程技术有限公司 | Highway bridge girder erection machine and hole passing method |
| CN114541277A (en) * | 2022-04-01 | 2022-05-27 | 郑州新大方重工科技有限公司 | Fully-assembled bridging system, beam erecting and hole passing method |
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