CN105839547A - Adjustable small-radius bridge girder erection machine and bridge girder erection method - Google Patents
Adjustable small-radius bridge girder erection machine and bridge girder erection method Download PDFInfo
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- CN105839547A CN105839547A CN201610407931.2A CN201610407931A CN105839547A CN 105839547 A CN105839547 A CN 105839547A CN 201610407931 A CN201610407931 A CN 201610407931A CN 105839547 A CN105839547 A CN 105839547A
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- supporting leg
- girder
- bridge
- described supporting
- limiting plates
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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
Abstract
The invention discloses an adjustable small-radius bridge girder erection machine, which comprises girders and supporting legs, wherein transverse moving mechanisms are arranged at the bottom parts of the supporting legs, and roller wheels are arranged at the top parts of the supporting legs; the transverse moving mechanisms are used for transversally moving on piers or box girders in a contact way, and the two ends of the roller wheels are respectively provided with limiting plates; the distance between the two limiting plates is adjustable, and the girders are slidably connected with the roller wheels and arranged between the two limiting plates; lifting mechanisms for adjusting height are arranged on the supporting legs. By using the bridge girder erection machine, the roller wheels with adjustable limiting plate distances are arranged, and the gaps between the limiting plates and the girders are adjusted to be small, so that the girders normally move forward relative to the supporting legs when the girder erection work is conducted by the bridge girder erection machine; when steering is needed, the gaps between the limiting plates and the girders are adjusted to be maximum, and the transverse moving mechanism of one supporting leg is driven to transversally move, so that the girder makes a circular motion by taking the other supporting leg as a fulcrum to achieve that the girder attitude of the bridge girder erection machine is adjusted to be in parallel with the tangent line of the erected bridge curve and achieve the erection purpose of a small-radius horizontal curve bridge. The bridge girder erection machine has the advantages of simple structure, cost saving and shortening of construction schedule of the small-radius horizontal curve bridge.
Description
Technical field
The present invention relates to a kind of bridge construction equipment, a kind of adjustable minor radius Bridge Erector and bridge formation side
Method.
Background technology
In current bridge is built, considering cost, duration, difficulty of construction etc. all many because of
Number, usually applies to Bridge Erector and carries out bridge construction, and Bridge Erector is the box beam of prefabricated bridge to be placed into
The prefabricated equipment on bridge pier, it is possible to reuse, shorten the build bridge duration, wide in bridge is built
General use.
But, Bridge Erector, when setting up curved bridge, need to adjust Bridge Erector attitude to reach and to build a bridge curve
Tangent line parallel, Bridge Erector can be carried out and cross across reaching the state of setting a roof beam in place, existing crane's major girder is slidably connected at
On the roller of load-bearing supporting leg, roller uses the shaped steel that concave groove type adaptive girder are in contact with it, this groove and type
The adaptive gap of steel is fairly small, it is ensured that girder not sideslip when load-bearing supporting leg moves advance；Existing Bridge Erector
Relatively large radius horizontal curve bridge (if sweep is more than 350 meters) can only be set up owing to this structure limits, need
Want a kind of New-Type Bridge Girder Erection Machine to meet in mountain area, knob building highway bridge time the minor radius that can run into
The construction demand of horizontal curve bridge (if sweep is less than or equal to 350 meters).
Summary of the invention
It is an object of the invention to: for prior art exist existing Bridge Erector due to structure limit can only frame
If relatively large radius horizontal curve bridge, New-Type Bridge Girder Erection Machine meets in mountain area, height is built in knob to need one
The problem of the construction demand of the small slab caster bridge that can run into during speed highway bridge, it is provided that a kind of adjustable little
Radius Bridge Erector and bridging method, this Bridge Erector is provided with micro-adjusting mechanism to adjust Bridge Erector attitude and minor radius bridge
Beam curve near tangent is parallel, meets the erection of small slab caster bridge.
To achieve these goals, the technical solution used in the present invention is:
A kind of adjustable minor radius Bridge Erector, including two girders be arrangeding in parallel, and is located at described in two
Hoisting mechanism between girder, is also associated with supporting leg one, supporting leg two, supporting leg three and bottom each described girder
Supporting leg four, if being equipped with several transverse-moving mechanisms bottom all described supporting legs one and supporting leg two, top is equipped with
A dry roller, contact bottom each described transverse-moving mechanism described bridge pier or box beam and can relatively bridge pier or
Box beam transverse shifting, each described roller two ends respectively arrange a limiting plate, all two institutes being oppositely arranged
Stating limiting plate spacing adjustable, each described girder is slidably connected on all described roller of corresponding side, and
Being located between two described limiting plates on each described roller, described supporting leg three and supporting leg four are slidably connected to
Described girder, and lay respectively at the two ends of described girder, each described supporting leg one, supporting leg two, supporting leg three and
The elevating mechanism of its height of regulation it is respectively provided with on supporting leg four.
Use one of the present invention adjustable minor radius Bridge Erector, be provided with the roller of adjustable limiting plate spacing,
During girder erection by bridging machine work, turn limiting plate and girder gap down, it is ensured that girder confronting legs normally advances；?
When small slab caster bridge needs to turn to, limiting plate and girder gap are adjusted to maximum, drive a supporting leg
Transverse-moving mechanism transverse shifting, making girder is that fulcrum moves in a circle around another supporting leg, it is achieved crane's major girder appearance
State is adjusted to parallel with the curve near tangent that builds a bridge, and turns limiting plate and girder gap afterwards down, meets and sets a roof beam in place
Work requirements, it is achieved the erection of small slab caster bridge, this Bridge Erector simple in construction, it is possible at existing frame
On the basis of bridge machine, rapid refit obtains, cost-effective, shortens the small slab caster bridge construction duration.
Preferably, the diameter of each described roller is less than the minimum widith of described limiting plate.
Preferably, each described roller uses with the two of its two ends described limiting plates and threadeds.
Preferably, each described supporting leg one and supporting leg two top are equipped with grooved rail, arrange described in described grooved rail
Roller.
Preferably, each described supporting leg one and supporting leg two being respectively equipped with position-limit mechanism, described position-limit mechanism is used
In limiting, described supporting leg one is relative with girder slides, and is used for limiting that described supporting leg two is relative with girder to slide.
Preferably, at least one supporting leg five, each described supporting leg are also slidably connected bottom each described girder
Five between described supporting leg three and supporting leg four, and each described supporting leg five is respectively provided with its height of regulation
Elevating mechanism.
Preferably, it is provided with several described transverse-moving mechanisms bottom each described supporting leg five.
The invention also discloses the bridging method of a kind of adjustable minor radius Bridge Erector, including such as any of the above institute
The one adjustable minor radius Bridge Erector stated, its bridging method comprises the following steps:
A, normally setting a roof beam in place, the spacing between the most all two described limiting plates being oppositely arranged is minimum, horizontal plane
Interior described supporting leg one and supporting leg two are each perpendicular to described girder；
B, advance at the erection of small slab caster bridge when setting a roof beam in place, described in all two be oppositely arranged
Spacing between limiting plate tunes up, and described supporting leg three and supporting leg four is maked somebody a mere figurehead, will described supporting leg three and supporting leg
Four rise until leaving corresponding described bridge pier or box beam；
C, drive the transverse-moving mechanism transverse shifting on described supporting leg two, make described girder around described supporting leg one for
Point moves in a circle, and after motion, in horizontal plane, incline in the erection direction of the described the most described girder of supporting leg two
Tiltedly, all described limiting plates are relatively reduced with the gap of girder；
Transverse-moving mechanism on D, described supporting leg two carries out transverse shifting, until all described limiting plates and girder
Gap stops moving after being minimized, girder described in described supporting leg three and supporting leg four jacking, makes described
Lower limb two is maked somebody a mere figurehead, and it is vertical with described girder in horizontal plane to align described supporting leg two, again makes described supporting leg two
Be slidably connected described girder, and described supporting leg three and supporting leg four is maked somebody a mere figurehead；
E, repeating said steps D, until described girder pose adjustment is to the bridge curve with erection place, direction
Tangent line parallel；
F, the spacing between all two described limiting plates being oppositely arranged is adjusted to minimum, normally sets a roof beam in place.
Use the bridging method of a kind of adjustable minor radius Bridge Erector of the present invention, by regulation roller two
Limiting plate spacing and transverse-moving mechanism drive girder lateral rotation, realize girder pose adjustment to erection bridge
Beam curve near tangent is parallel, thus realizes the erection of small slab caster bridge, and the method is simple to operate, real
Execute respond well, it is simple to promote.
Preferably, after implementing described step D, implement the steps of:
A, drive the transverse-moving mechanism transverse shifting on described supporting leg one, make described girder around described supporting leg two for
Point does and the most equidirectional circular motion, and after motion, in horizontal plane, the described the most described girder of supporting leg one is sent out
Raw inclination, all described limiting plates are relatively reduced with the gap of girder；
Transverse-moving mechanism on b, described supporting leg one carries out transverse shifting, until all described limiting plates and girder
Gap stops moving after being minimized, girder described in described supporting leg three and supporting leg four jacking, makes described
Lower limb one is maked somebody a mere figurehead, and it is vertical with described girder in horizontal plane to align described supporting leg one, again makes described supporting leg one
Be slidably connected described girder, and described supporting leg three and supporting leg four is maked somebody a mere figurehead；
C, repeating said steps a and step b, or described step D, until described girder pose adjustment arrives
Parallel with the tangent line of the bridge curve setting up place, direction.
D, implement described step F.
Preferably, in described step B, the spacing between all two described limiting plates being oppositely arranged is adjusted to
Maximum.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, use one of the present invention adjustable minor radius Bridge Erector, be provided with the rolling of adjustable limiting plate spacing
Wheel, during girder erection by bridging machine work, turns limiting plate and girder gap down, it is ensured that girder confronting legs normally advances；
When small slab caster bridge needs to turn to, limiting plate and girder gap are adjusted to maximum, drive a supporting leg
Transverse-moving mechanism transverse shifting, making girder is that fulcrum moves in a circle around another supporting leg, it is achieved crane's major girder
Pose adjustment, to parallel with the curve near tangent that builds a bridge, turned limiting plate and girder gap afterwards down, is met frame
Beam work requirements, it is achieved the erection of small slab caster bridge, this Bridge Erector simple in construction, it is possible to existing
On the basis of Bridge Erector, rapid refit obtains, cost-effective, shortens the small slab caster bridge construction duration；
2, the bridging method of a kind of adjustable minor radius Bridge Erector of the present invention is used, by regulation roller
Two limiting plate spacing and transverse-moving mechanism drive girder lateral rotation, realize girder pose adjustment to erection
The tangent line of bridge curve is parallel, thus realizes the erection of small slab caster bridge, and the method is simple to operate,
Implementation result is good, it is simple to promote.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of adjustable minor radius Bridge Erector of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is A-A sectional view in Fig. 2；
Fig. 4 is B-B sectional view in Fig. 2；
Fig. 5 is the enlarged drawing of Local C in Fig. 3；
Fig. 6 is the schematic diagram in Fig. 5 after limiting plate regulation.
Labelling in figure: 1-girder, 11-supporting leg three, 12-supporting leg one, 13-supporting leg two, 14-supporting leg five, 15-props up
Lower limb four, 16-hoisting mechanism, 17-transverse-moving mechanism, 18-roller, 181-limiting plate, 19-grooved rail, 2-bridge pier,
3-box beam, 4-position-limit mechanism.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
In order to explain the present invention, it is not intended to limit the present invention.
Embodiment 1
As shown in figures 1 to 6, one of the present invention adjustable minor radius Bridge Erector, it be arranged in parallel including two
Girder 1, and be located at the hoisting mechanism 16 between two described girders 1.
Supporting leg 1, supporting leg 2 13, supporting leg 3 11 and supporting leg four it is also associated with bottom each described girder 1
15, it is equipped with several transverse-moving mechanisms 17 bottom all described supporting legs 1 and supporting leg 2 13, top is all provided with
There are several rollers 18, bottom each described transverse-moving mechanism 17, contact described bridge pier 2 or box beam 3 can
Bridge pier 2 or box beam 3 transverse shifting relatively, each described roller 18 two ends respectively arrange a limiting plate 181,
All two be oppositely arranged described limiting plate 181 spacing is adjustable, and it is right that each described girder 1 is slidably connected to
Answer on all described roller 18 of side, and two the described limiting plates 181 being located on each described roller 18
Between, described supporting leg 3 11 and supporting leg 4 15 are slidably connected to described girder 1, and lay respectively at described girder
The two ends of 1, each described supporting leg 1, supporting leg 2 13, supporting leg 3 11 and supporting leg 4 15 are respectively equipped with
For regulate its height elevating mechanism, described elevating mechanism make described supporting leg 1 contact described bridge pier 2 or
Person's box beam 3, makes described supporting leg 2 13 contact described bridge pier 2 or box beam 3, makes described supporting leg 31 contact
Described bridge pier 2 or box beam 3, and make described supporting leg 4 15 contact described bridge pier 2 or box beam 3.
The diameter of each described roller 18 is less than the minimum widith of described limiting plate 181；Each described roller 18
Use with the two of its two ends described limiting plates 181 and threaded.
Each described supporting leg 1 and supporting leg 2 13 top are equipped with grooved rail 19, arrange institute in described grooved rail 19
State roller 18；Position-limit mechanism 4 it is respectively equipped with on each described supporting leg 1 and supporting leg 2 13, described spacing
Mechanism 4 is used for limiting that described supporting leg 1 is relative with girder 1 to slide, and is used for limiting described supporting leg 2 13
Relative with girder 1 slide.
At least one supporting leg 5 14, each described supporting leg 5 14 is also slidably connected bottom each described girder 1
Between described supporting leg 3 11 and supporting leg 4 15, each described supporting leg 5 14 is respectively provided with regulation
The elevating mechanism of its height, is provided with several described transverse-moving mechanisms 17 bottom each described supporting leg 5 14.
Use one of the present invention adjustable minor radius Bridge Erector, be provided with adjustable limiting plate 181 spacing
Roller 18, during girder erection by bridging machine work, turns the gap of limiting plate 181 and girder 1 down, it is ensured that girder 1 phase
Advance normal to supporting leg；When small slab caster bridge needs to turn to, by between limiting plate 181 and girder 1
Gap is adjusted to maximum, drives transverse-moving mechanism 17 transverse shifting of a supporting leg, and making girder 1 is fulcrum around another supporting leg
Move in a circle, it is achieved crane's major girder 1 pose adjustment is to parallel with the curve near tangent that builds a bridge, afterwards
Turn the gap of limiting plate 181 and girder 1 down, meet work requirements of setting a roof beam in place, it is achieved small slab caster bridge
Erection, this Bridge Erector simple in construction, it is possible to rapid refit obtains on the basis of existing Bridge Erector, saves into
This, shorten the small slab caster bridge construction duration.
Embodiment 2
As shown in figures 1 to 6, the bridging method of a kind of adjustable minor radius Bridge Erector of the present invention, including such as
One adjustable minor radius Bridge Erector described in embodiment 1, its bridging method comprises the following steps:
A, normally setting a roof beam in place, the spacing between the most all described limiting plates 181 of two be oppositely arranged is minimum, water
In plane, described supporting leg 1 and supporting leg 2 13 are each perpendicular to described girder 1；
B, advance at the erection of small slab caster bridge when setting a roof beam in place, described in all two be oppositely arranged
Spacing between limiting plate 181 tunes up, and described supporting leg 3 11 and supporting leg 4 15 is maked somebody a mere figurehead, and will described prop up
Lower limb 3 11 and supporting leg 4 15 rise until leaving corresponding described bridge pier 2 or box beam 3；
C, transverse-moving mechanism 17 transverse shifting driven on described supporting leg 2 13, make described girder 1 around described
Lower limb 1 moves in a circle for fulcrum, after motion, and the described the most described girder of supporting leg 2 13 1 in horizontal plane
The run-off the straight of erection direction, all described limiting plates 181 are relatively reduced with the gap of girder 1；
Transverse-moving mechanism 17 on D, described supporting leg 2 13 carries out transverse shifting, until all described limiting plates
181 stop moving with the gap of girder 1 after being minimized, described supporting leg 3 11 and supporting leg 4 15 jacking
Described girder 1, makes described supporting leg 2 13 make somebody a mere figurehead, and align described supporting leg 2 13 in horizontal plane with described master
Beam 1 is vertical, again makes described supporting leg 2 13 be slidably connected described girder 1, and by described supporting leg 3 11 and
Lower limb 4 15 is maked somebody a mere figurehead；
E, repeating said steps D, until described girder 1 pose adjustment is to bent with the bridge setting up place, direction
The tangent line of line is parallel；
F, the spacing between all described limiting plates 181 of two be oppositely arranged is adjusted to minimum, normally sets a roof beam in place.
As a preferred version of the present embodiment, after implementing described step D, implement the steps of:
A, transverse-moving mechanism 17 transverse shifting driven on described supporting leg 1, make described girder 1 around described
Lower limb 2 13 does and the most equidirectional circular motion for fulcrum, after motion, and described supporting leg 1 in horizontal plane
The run-off the straight of the most described girder 1, all described limiting plates 181 are relatively reduced with the gap of girder 1；
Transverse-moving mechanism 17 on b, described supporting leg 1 carries out transverse shifting, until all described limiting plates 181
Stop moving after being minimized with the gap of girder 1, described supporting leg 3 11 and supporting leg 4 15 jacking institute
State girder 1, make described supporting leg 1 make somebody a mere figurehead, and align described supporting leg 1 in horizontal plane with described girder
1 is vertical, again makes described supporting leg 1 be slidably connected described girder 1, and by described supporting leg 3 11 and supporting leg
4 15 make somebody a mere figurehead；
C, repeating said steps a and step b, or described step D, until described girder 1 pose adjustment
To parallel with the tangent line of the bridge curve setting up place, direction.
D, implement described step F.
As a preferred version of the present embodiment, in described step B, by all two institutes being oppositely arranged
The spacing stated between limiting plate 181 is adjusted to maximum.
Use the bridging method of a kind of adjustable minor radius Bridge Erector of the present invention, by regulation roller 18
The spacing of two limiting plates 181 and transverse-moving mechanism 17 drive girder 1 lateral rotation, realize girder 1 attitude
It is adjusted to parallel with the curve near tangent that builds a bridge, thus realizes the erection of small slab caster bridge, the party
Method is simple to operate, and implementation result is good, it is simple to promote.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (10)
1. an adjustable minor radius Bridge Erector, including two girders be arrangeding in parallel (1), with
And the hoisting mechanism (16) being located between two described girders (1), it is characterised in that each described
Girder (1) bottom is also associated with supporting leg one (12), supporting leg two (13), supporting leg three (11) and supporting leg four
(15), all described supporting legs one (12) and supporting leg two (13) bottom are equipped with several transverse-moving mechanisms
(17), top is equipped with several rollers (18), each described transverse-moving mechanism (17) bottom contact institute
State bridge pier (2) or box beam (3) and can bridge pier (2) or box beam (3) transverse shifting relatively, each
Described roller (18) two ends respectively arrange a limiting plate (181), described in all two be oppositely arranged
Limiting plate (181) spacing is adjustable, and each described girder (1) is slidably connected to all of corresponding side
On described roller (18), and two the described limiting plates (181) being located on each described roller (18)
Between, described supporting leg three (11) and supporting leg four (15) are slidably connected to described girder (1), and difference
It is positioned at the two ends of described girder (1), each described supporting leg one (12), supporting leg two (13), supporting leg three
(11) elevating mechanism of its height of regulation and it is respectively provided with on supporting leg four (15).
One the most according to claim 1 adjustable minor radius Bridge Erector, its feature exists
In, the diameter of each described roller (18) is less than the minimum widith of described limiting plate (181).
One the most according to claim 2 adjustable minor radius Bridge Erector, its feature exists
In, each described roller (18) uses screw thread even with two described limiting plates (181) at its two ends
Connect.
One the most according to claim 1 adjustable minor radius Bridge Erector, its feature exists
In, each described supporting leg one (12) and supporting leg two (13) top are equipped with grooved rail (19), described grooved rail
(19) described roller (18) is set in.
One the most according to claim 1 adjustable minor radius Bridge Erector, its feature exists
In, each described supporting leg one (12) and supporting leg two (13) are respectively equipped with position-limit mechanism (4), described
Position-limit mechanism (4) is used for limiting that described supporting leg one (12) is relative with girder (1) to slide, and is used for limiting
Make described supporting leg two (13) is relative with girder (1) to slide.
One the most according to claim 1 adjustable minor radius Bridge Erector, its feature exists
In, each described girder (1) bottom also slidably connects at least one supporting leg five (14), Mei Gesuo
State supporting leg five (14) to be positioned between described supporting leg three (11) and supporting leg four (15), each described supporting leg five
(14) elevating mechanism of its height of regulation it is respectively provided with on.
One the most according to claim 6 adjustable minor radius Bridge Erector, its feature exists
In, each described supporting leg five (14) bottom is provided with several described transverse-moving mechanisms (17).
8. the bridging method of an adjustable minor radius Bridge Erector, it is characterised in that include as
The arbitrary described one adjustable minor radius Bridge Erector of claim 1-7, its bridging method includes
Following steps:
A, normally set a roof beam in place, between the most all two described limiting plates (181) being oppositely arranged between
In minimum, horizontal plane, described supporting leg one (12) and supporting leg two (13) are each perpendicular to described girder (1)；
B, advance to when setting a roof beam in place, at the erection of small slab caster bridge, be oppositely arranged all
Two described limiting plates (181) between spacing tune up, and by described supporting leg three (11) and supporting leg four
(15) built on stilts, will described supporting leg three (11) and supporting leg four (15) rise until leaving corresponding described bridge
Pier (2) or box beam (3)；
C, drive transverse-moving mechanism (17) transverse shifting on described supporting leg two (13), make described girder
(1) around described supporting leg one (12) be that fulcrum moves in a circle, after motion, described supporting leg in horizontal plane
The erection direction run-off the straight of two (13) the most described girders (1), all described limiting plates (181)
Relatively reduced with the gap of girder (1)；
Transverse-moving mechanism (17) on D, described supporting leg two (13) carries out transverse shifting, until all institutes
State limiting plate (181) to stop moving after being minimized with the gap of girder (1), described supporting leg
Three (11) and supporting leg four (15) jacking described in girder (1), make described supporting leg two (13) make somebody a mere figurehead, and align
Described supporting leg two (13) is vertical with described girder (1) in horizontal plane, again makes described supporting leg two
(13) be slidably connected described girder (1), and described supporting leg three (11) and supporting leg four (15) is maked somebody a mere figurehead；
E, repeating said steps D, until described girder (1) pose adjustment to set up direction institute
The tangent line of bridge curve parallel；
F, the spacing between all two described limiting plates (181) being oppositely arranged is adjusted to minimum,
Normally set a roof beam in place.
Bridging method the most according to claim 8, it is characterised in that described in implementing
After step D, implement the steps of:
A, drive transverse-moving mechanism (17) transverse shifting on described supporting leg one (12), make described girder
(1) around described supporting leg two (13) be fulcrum do with the most equidirectional circular motion, after motion, water
Described supporting leg one (12) the most described girder (1) run-off the straight in plane, all described limiting plates
(181) relatively reduced with the gap of girder (1)；
Transverse-moving mechanism (17) on b, described supporting leg one (12) carries out transverse shifting, until all institutes
State limiting plate (181) to stop moving after being minimized with the gap of girder (1), described supporting leg
Three (11) and supporting leg four (15) jacking described in girder (1), make described supporting leg one (12) make somebody a mere figurehead, and align
Described supporting leg one (12) is vertical with described girder (1) in horizontal plane, again makes described supporting leg one
(12) be slidably connected described girder (1), and described supporting leg three (11) and supporting leg four (15) is maked somebody a mere figurehead；
C, repeating said steps a and step b, or described step D, until described girder (1)
Pose adjustment is to parallel with the tangent line of the bridge curve setting up place, direction.
D, implement described step F.
Bridging method the most according to claim 8, it is characterised in that described step B
In, the spacing between all two described limiting plates (181) being oppositely arranged is adjusted to maximum.
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| CN109440645A (en) * | 2018-09-29 | 2019-03-08 | 中铁二局集团有限公司 | A kind of feeding beam method set a roof beam in place suitable for sharp radius curve |
| CN110714415A (en) * | 2019-09-23 | 2020-01-21 | 上海市政工程设计研究总院（集团）有限公司 | Width-variable prefabricated segment assembled box girder framing synchronous construction method |
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| CN112323649A (en) * | 2020-11-10 | 2021-02-05 | 新疆北新路桥集团股份有限公司 | Bridge girder erection machine and bridge construction method |
| CN114808736A (en) * | 2022-05-20 | 2022-07-29 | 中昕重工(宁波)有限公司 | Bridge prefabricated part cross-inside transverse flat-turning hoisting device and hoisting process method |
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| CN110714415A (en) * | 2019-09-23 | 2020-01-21 | 上海市政工程设计研究总院（集团）有限公司 | Width-variable prefabricated segment assembled box girder framing synchronous construction method |
| CN111945580A (en) * | 2020-08-18 | 2020-11-17 | 上海振华港机重工有限公司 | Bridge deck erection method for large-radian curve type steel box girder |
| CN111945580B (en) * | 2020-08-18 | 2021-11-23 | 上海振华港机重工有限公司 | Bridge deck erection method for large-radian curve type steel box girder |
| CN112323649A (en) * | 2020-11-10 | 2021-02-05 | 新疆北新路桥集团股份有限公司 | Bridge girder erection machine and bridge construction method |
| CN112323649B (en) * | 2020-11-10 | 2022-09-20 | 新疆北新路桥集团股份有限公司 | Bridge construction method |
| CN114808736A (en) * | 2022-05-20 | 2022-07-29 | 中昕重工(宁波)有限公司 | Bridge prefabricated part cross-inside transverse flat-turning hoisting device and hoisting process method |
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Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee after: CHINA RAILWAY ERJU 4TH ENGINEERING Co.,Ltd. Patentee after: China Railway Second Bureau Construction Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee before: CHINA RAILWAY ERJU 4TH ENGINEERING Co.,Ltd. Patentee before: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. |
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Effective date of registration: 20190822 Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee after: CHINA RAILWAY ERJU 4TH ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Co-patentee before: CHINA RAILWAY ERJU 4TH ENGINEERING Co.,Ltd. Patentee before: China Railway Second Bureau Construction Co.,Ltd. |