CN107311047A - The steel box-girder lift structure and method for improving of large span bondbeam - Google Patents
The steel box-girder lift structure and method for improving of large span bondbeam Download PDFInfo
- Publication number
- CN107311047A CN107311047A CN201710713823.2A CN201710713823A CN107311047A CN 107311047 A CN107311047 A CN 107311047A CN 201710713823 A CN201710713823 A CN 201710713823A CN 107311047 A CN107311047 A CN 107311047A
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- China
- Prior art keywords
- girder
- support column
- bondbeam
- steel box
- large span
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of steel box-girder lift structure of large span bondbeam and method for improving, including gantry hoisting frame and the In Reinforced Concrete Box Girder for being arranged on bridge top and moving towards to set along bridge, gantry hoisting frame includes crossbeam and two support columns, crane trolley is provided with the crossbeam, the two ends head of crossbeam is supported respectively for the upper end of two support column and lower end is provided with walking carriage, the two support columns upper end is concordant, lower end has difference in height to form high support column and low support column, the walking carriage of the lower end of the high support column is arranged on In Reinforced Concrete Box Girder upper surface, the walking carriage of the lower end of the low support column is arranged on ground.This structure make use of cast-in-place good In Reinforced Concrete Box Girder as the track laying face of the high support column walking carriage of gantry hoisting frame with reference to this method for improving, reduces gantry hoisting frame and takes up an area width, grading expense, good economy performance when saving track laying.
Description
Technical field
The invention belongs to technical field of building construction, and in particular to a kind of steel box-girder lift structure of large span bondbeam and
Method for improving.
Background technology
With the quick steady-state growth of national economic development, infrastructure construction is greatly developed, in recent years long-span bridge
Beam is built quantity and is continuously increased.The bondbeam that current steel box-girder is constituted with In Reinforced Concrete Box Girder can obtain more superior structure
Mechanical characteristic and rational structure type, it takes full advantage of steel member and the advantage of reinforced concrete member compensate for each again
Deficiency（Steel member has good tensile strength and deformability in tensile zone, but easily produces surrender, steel in compressive region
Reinforced concrete component is then very good on the contrary, compression strength is big, and clean steel construction weight is lighter than pure reinforced concrete member, but reinforcing bar is mixed
Solidifying soil component cost is more cheap than steel.）.Therefore, in Longspan Bridge construction, steel box-girder is constituted with In Reinforced Concrete Box Girder
Bondbeam it is also more and more extensive in the application of China.
Because the current conventional side leg of gantry hoisting frame two is arranged on bridge both sides, occupation of land width is larger, track laying
When grading it is costly, and then integrated cost is higher.In bridge construction process, such as in city narrow space, mountain area
Etc. under bad or MODEL OVER COMPLEX TOPOGRAPHY, without enough places conventional gantry hoisting frame may be set to lift large-span steel
Box beam, now lifts Large-span Steel Box Beam more difficult.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to propose a kind of steel case of large span bondbeam
Beam lift structure and method for improving, this structure, which combines this method for improving, reduces gantry hoisting frame occupation of land width, saves track
Grading expense during laying, good economy performance.
To achieve the above object, the technical solution adopted by the present invention is as follows：
In a first aspect, a kind of steel box-girder lift structure of large span bondbeam, including gantry hoisting frame, gantry hoisting frame bag
Include and crane trolley is provided with crossbeam and two support columns, the crossbeam, the two ends of the upper end of two support column respectively to crossbeam
Head is supported and lower end is provided with walking carriage, it is characterised in that：Also include being arranged on bridge top and walking along bridge
To the In Reinforced Concrete Box Girder of setting, the two support columns upper end is concordant, lower end has difference in height to form high support column and low
Support column, the walking carriage of the lower end of the high support column is arranged on In Reinforced Concrete Box Girder upper surface, the low support column
The walking carriage of lower end is arranged on ground.
Rail of this structure by the use of cast-in-place good In Reinforced Concrete Box Girder as the high support column walking carriage of gantry hoisting frame
Road paved surface, reduces gantry hoisting frame and takes up an area width, solves that city narrow space, mountain area etc. be bad or complicated landform bar
Bridge problem in the lifting of the steel box-girder of large span bondbeam under part.
Further, In Reinforced Concrete Box Girder upper surface of the present invention is equipped with high support column walking rail along bridge trend
Road, the high support column walking track is adapted with the walking carriage of the lower end of high support column；Ground is equipped with along bridge trend
Low support column walking track, the low support column walking track is adapted with the walking carriage of the lower end of low support column；The height
Support column walk track and low support column walking track the discrepancy in elevation it is always consistent and lateral separation is always consistent.
Further, beam surface upper of the present invention is provided with crane trolley track, the lifting platform along its length
Car is run along crane trolley track.Crane trolley lifts steel box-girder along bridge width direction along crane trolley track.
Further, low support column side of the present invention is provided with crane gear operation room, the crane gear operation
Between highly be higher than In Reinforced Concrete Box Girder upper surface.Operating personnel control the fortune of walking carriage and crane trolley between equipment operation
OK.The lifting state that higher position is easy to operating personnel to observe steel box-girder is arranged between equipment operation.
Further, crossbeam of the present invention and two support columns are welded using square steel tube and angle steel.
A kind of second aspect, steel box-girder method for improving of large span bondbeam, comprises the following steps：
1）In bridge construction to when meeting the steel box-girder lift structure for setting large span bondbeam, large span bondbeam is set
Steel box-girder lift structure；
2）Utilize step 1）Steel box-girder is lifted to by the crane trolley in the steel box-girder lift structure of the large span bondbeam of setting
Correspondence position is simultaneously accordingly constructed, until the steel box-girder lifting of the position is finished；
3）After In Reinforced Concrete Box Girder in front of the steel box-girder lift structure of large span bondbeam is routed to setting length, pass through
The steel box-girder lift structure of large span bondbeam is moved along certain distance by the walking carriage on height support column, is then entered again
Row steel box-girder is lifted by crane and corresponding construction；
4）Repeat step 3）, until the lifting of all steel box-girders is finished.
Further, step 1 of the present invention）The detailed process of the steel box-girder lift structure of the large span bondbeam of middle setting
For：
1.1）Construction bridges, move towards to lay In Reinforced Concrete Box Girder on bridge top along bridge；
1.2）Bridge top is cleared up along the In Reinforced Concrete Box Girder upper surface that bridge moves towards to set, to the ground of bridge side
Face carries out cure process；
1.3）Lay high support column walking track, ground upper berth after curing in In Reinforced Concrete Box Girder upper surface after the cleaning
The track if low support column is walked；
1.4）The steel box-girder lift structure of large span bondbeam is installed.
Compared with prior art, the beneficial effects are mainly as follows：
1st, this structure is used as the high support column of gantry hoisting frame with reference to this method for improving by the use of cast-in-place good In Reinforced Concrete Box Girder
The track laying face of walking carriage, reduces gantry hoisting frame and takes up an area width, solve city narrow space, mountain area etc. it is bad or
Bridge problem in the lifting of the steel box-girder of large span bondbeam under person's MODEL OVER COMPLEX TOPOGRAPHY, grading expense when saving track laying
With good economy performance.
2nd, gantry hoisting frame integrally can be run along bridge length side, and the crane trolley that beam surface upper is set can be along bridge
Steel box-girder is transported in beam width direction, and flexibly, efficiency of construction is high for constructing operation.
Brief description of the drawings
Fig. 1 is the steel box-girder lift structure schematic diagram of the large span bondbeam of the embodiment of the present invention.
In accompanying drawing：1- gantry hoisting frame；2- bridges；3- ground；
The high support columns of 11-；The low support columns of 12-；13- crossbeams；14- walking carriages；15- crane trolleys；16- crane gears are operated
Between；21- In Reinforced Concrete Box Girders；22- steel box-girders.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of steel box-girder lift structure of large span bondbeam of the present embodiment, including gantry hoisting frame 1
With In Reinforced Concrete Box Girder 21, gantry hoisting frame 1 includes the support column of crossbeam 13 and two, the two support columns upper end is concordant,
Lower end has difference in height to form high support column 11 and low support column 12, the crossbeam 13, high support column 11 and low support column 12
It is welded using square steel tube and angle steel.Crane trolley 15, the high support column 11 and low support column are provided with crossbeam 13
The two ends head of crossbeam 13 is supported respectively for 12 upper end and lower end is provided with walking carriage 14.The armored concrete
Box beam 21 is arranged on the top of bridge 2 and moves towards to set along bridge 2, and the walking carriage 14 of the lower end of the high support column 11 is arranged on
The upper surface of In Reinforced Concrete Box Girder 21, the walking carriage 14 of the lower end of the low support column 12 is arranged on ground 3.
Walking platform of this structure by the use of cast-in-place good In Reinforced Concrete Box Girder 21 as the high support column 11 of gantry hoisting frame 1
The track laying face of car 14, reduce gantry hoisting frame 1 take up an area width, solve city narrow space, mountain area etc. it is bad or
Bridge problem in the lifting of the steel box-girder of large span bondbeam under MODEL OVER COMPLEX TOPOGRAPHY, saves the walking platform of the high lower end of support column 11
Grading expense, good economy performance during the track laying of car 14.Gantry hoisting frame 1 integrally can be run along the length side of bridge 2, horizontal
The crane trolley 15 that the upper surface of beam 13 is set can transport steel box-girder 22 along the width of bridge 2, and constructing operation flexibly, imitate by construction
Rate is high.
As shown in figure 1, in this structure, the upper surface of In Reinforced Concrete Box Girder 21 is equipped with high support column row along the trend of bridge 2
Track is walked, the high support column walking track is adapted with the walking carriage 14 of the lower end of high support column；Walked along bridge 2 on ground 3
To low support column walking track is equipped with, low the support column walking track and the walking carriage 14 of the lower end of low support column are mutually fitted
Match somebody with somebody；The discrepancy in elevation of the high support column walking track and low support column walking track is always consistent and lateral separation is remained
Unanimously.The upper surface of crossbeam 13 is provided with crane trolley track along its length, and the crane trolley 15 is transported along crane trolley track
OK（Steel box-girder 22 is lifted along bridge width direction）.
As shown in figure 1, in this structure, the low side of support column 12 is provided with crane gear operation room 16, the crane gear
The height of operation room 16 is higher than the upper surface of In Reinforced Concrete Box Girder 21；Operating personnel's 16 control He of walking carriage 14 between equipment operation
16 are arranged on the lifting shape that higher position is easy to operating personnel to observe steel box-girder 22 between the operation of crane trolley 15, equipment operation
State.Specifically, in practical operation, need to carry out clearly the upper surface of In Reinforced Concrete Box Girder 21 before laying high support column walking track
Reason；Lay needs to carry out cure process to ground before low support column walking track, to ensure the operation safety of walking carriage.It is promoted to
The steel box-girder 22 of the upper surface of In Reinforced Concrete Box Girder 21 is moved to by the tripod for being arranged on the upper surface of In Reinforced Concrete Box Girder 21
Specified location.
A kind of steel box-girder method for improving of large span bondbeam, comprises the following steps：
1）Constructed in bridge 2 to when meeting the steel box-girder lift structure for setting large span bondbeam, set large span to combine
The steel box-girder lift structure of beam；
2）Utilize step 1）Crane trolley 15 in the steel box-girder lift structure of the large span bondbeam of setting is by steel box-girder 22
Hang correspondence position and accordingly constructed, until the lifting of steel box-girder 22 of the position is finished；
3）After In Reinforced Concrete Box Girder 21 in front of the steel box-girder lift structure of large span bondbeam is routed to setting length, lead to
The steel box-girder lift structure of large span bondbeam is moved along certain distance by the walking carriage 14 crossed on height support column, then
The lifting of steel box-girder 22 and corresponding construction are carried out again；
4）Repeat step 3）, until the lifting of all steel box-girders 22 is finished.
Step 1 of the present invention）The detailed process of the steel box-girder lift structure of the large span bondbeam of middle setting is：
1.1）Construction bridges 2, move towards to lay In Reinforced Concrete Box Girder 21 on bridge top along bridge 2；
1.2）The top of bridge 2 is cleared up along the upper surface of In Reinforced Concrete Box Girder 21 that bridge 2 moves towards to set, to bridge 2 one
The ground 3 of side carries out cure process；
1.3）Lay high support column walking track, ground 3 after curing in the upper surface of In Reinforced Concrete Box Girder 21 after the cleaning
The upper low support column walking track of laying；
1.4）The steel box-girder lift structure of large span bondbeam is installed.
It is last it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although Shen
Ask someone that the present invention is described in detail with reference to preferred embodiment, it will be understood by those within the art that, to this hair
Bright technical scheme is modified or equivalent substitution, without departing from the objective and scope of the technical program, all should be covered at this
Among the right of invention.
Claims (7)
1. a kind of steel box-girder lift structure of large span bondbeam, including gantry hoisting frame, gantry hoisting frame include crossbeam
With two support columns, crane trolley is provided with the crossbeam, the upper end of two support column is entered to the two ends head of crossbeam respectively
Row is supported and lower end is provided with walking carriage, it is characterised in that：Also include being arranged on bridge top and move towards to set along bridge
In Reinforced Concrete Box Girder, the two support columns upper end is concordant, lower end has difference in height to form high support column and low support column,
The walking carriage of the lower end of the high support column is arranged on In Reinforced Concrete Box Girder upper surface, the row of the lower end of the low support column
Walk chassis and be arranged on ground.
2. the steel box-girder lift structure of large span bondbeam according to claim 1, it is characterised in that：The reinforced concrete
Native box beam upper surface is equipped with high support column walking track, the high support column walking track and high support column along bridge trend
The walking carriage of lower end is adapted；Ground is equipped with low support column walking track, the low support column walking rail along bridge trend
Road is adapted with the walking carriage of the lower end of low support column；The height of the high support column walking track and low support column walking track
Difference is always consistent and lateral separation is always consistent.
3. the steel box-girder lift structure of large span bondbeam according to claim 1 or 2, it is characterised in that：The crossbeam
Upper surface is provided with crane trolley track along its length, and the crane trolley is run along crane trolley track.
4. the steel box-girder lift structure of large span bondbeam according to claim 1 or 2, it is characterised in that：The low branch
Dagger side is provided with crane gear operation room, and the crane gear operation room is highly higher than In Reinforced Concrete Box Girder upper surface.
5. the steel box-girder lift structure of large span bondbeam according to claim 1, it is characterised in that：The crossbeam and two
Support column is welded using square steel tube and angle steel.
6. a kind of steel box-girder method for improving of large span bondbeam, it is characterised in that：Comprise the following steps：
1）Bridge construction to meet set claim 1 or 2 described in large span bondbeam steel box-girder lift structure when
Wait, the steel box-girder lift structure of large span bondbeam is set；
2）Utilize step 1）Steel box-girder is lifted to by the crane trolley in the steel box-girder lift structure of the large span bondbeam of setting
Correspondence position is simultaneously accordingly constructed, until the steel box-girder lifting of the position is finished；
3）After In Reinforced Concrete Box Girder in front of the steel box-girder lift structure of large span bondbeam is routed to setting length, pass through
The steel box-girder lift structure of large span bondbeam is moved along certain distance by the walking carriage on height support column, is then entered again
Row steel box-girder is lifted by crane and corresponding construction；
4）Repeat step 3）, until the lifting of all steel box-girders is finished.
7. the steel box-girder method for improving of large span bondbeam according to claim 6, it is characterised in that：Step 1）Power is set
Profit requires that the detailed process of the steel box-girder lift structure of the large span bondbeam described in 1 or 2 is：
1.1）Construction bridges, move towards to lay In Reinforced Concrete Box Girder on bridge top along bridge；
1.2）Bridge top is cleared up along the In Reinforced Concrete Box Girder upper surface that bridge moves towards to set, to the ground of bridge side
Face carries out cure process；
1.3）Lay high support column walking track, ground upper berth after curing in In Reinforced Concrete Box Girder upper surface after the cleaning
The track if low support column is walked；
1.4）The steel box-girder lift structure of large span bondbeam is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713823.2A CN107311047B (en) | 2017-08-18 | 2017-08-18 | The steel box-girder lift structure and method for improving of large span bondbeam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713823.2A CN107311047B (en) | 2017-08-18 | 2017-08-18 | The steel box-girder lift structure and method for improving of large span bondbeam |
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| CN107311047A true CN107311047A (en) | 2017-11-03 |
| CN107311047B CN107311047B (en) | 2018-09-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056541A (en) * | 2018-08-28 | 2018-12-21 | 中国二十冶集团有限公司 | Transportation resources from ground transport I-beam to bridge floor |
| CN110331672A (en) * | 2019-08-14 | 2019-10-15 | 中交一公局第一工程有限公司 | Across the pier bale handle holder device in bridge side position and its simple and fast construction method |
| CN110878530A (en) * | 2019-12-27 | 2020-03-13 | 中交二公局东萌工程有限公司 | Installation and construction method of steel box girder of steel structure bridge |
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| CN106760684A (en) * | 2017-02-28 | 2017-05-31 | 中国五冶集团有限公司 | See platen installation system and installation method |
| CN207078928U (en) * | 2017-08-18 | 2018-03-09 | 中冶建工集团有限公司 | A kind of steel box-girder lift structure of large span bondbeam |
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| JPH04116011A (en) * | 1990-09-05 | 1992-04-16 | Oriental Kensetsu Kk | Horizontal pick-up for precast concrete column equipment |
| CN201961992U (en) * | 2011-03-31 | 2011-09-07 | 四川川交路桥有限责任公司 | High-low gantry crane which is used for hoisting T beam with large span and formed by steel tube stand columns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056541A (en) * | 2018-08-28 | 2018-12-21 | 中国二十冶集团有限公司 | Transportation resources from ground transport I-beam to bridge floor |
| CN110331672A (en) * | 2019-08-14 | 2019-10-15 | 中交一公局第一工程有限公司 | Across the pier bale handle holder device in bridge side position and its simple and fast construction method |
| CN110878530A (en) * | 2019-12-27 | 2020-03-13 | 中交二公局东萌工程有限公司 | Installation and construction method of steel box girder of steel structure bridge |
| CN110878530B (en) * | 2019-12-27 | 2021-06-11 | 中交二公局东萌工程有限公司 | Installation and construction method of steel box girder of steel structure bridge |
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| Publication number | Publication date |
|---|---|
| CN107311047B (en) | 2018-09-28 |
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