CN107311047B - 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
- CN107311047B CN107311047B CN201710713823.2A CN201710713823A CN107311047B CN 107311047 B CN107311047 B CN 107311047B CN 201710713823 A CN201710713823 A CN 201710713823A CN 107311047 B CN107311047 B CN 107311047B
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- Prior art keywords
- support column
- girder
- bondbeam
- steel box
- large span
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 76
- 239000010959 steel Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims description 14
- 238000013036 cure process Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 241001513282 Bursaria spinosa Species 0.000 claims 1
- 238000012876 topography Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 be arranged bridge top and along bridge move towards be arranged In Reinforced Concrete Box Girder, gantry hoisting frame includes crossbeam and two support columns, it is provided with crane trolley on the crossbeam, the upper end of two support column is supported respectively to the both ends head of crossbeam and lower end is both provided with walking carriage, two upper end of support column 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 in In Reinforced Concrete Box Girder upper surface, the walking carriage of the lower end of the low support column is arranged on ground.Track laying face of the cast-in-place good In Reinforced Concrete Box Girder as the high support column walking carriage of gantry hoisting frame is utilized in conjunction with this method for improving in this structure, 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 of steel box-girder and In Reinforced Concrete Box Girder composition can obtain more superior structure at present
The advantages of mechanical characteristic and rational structure type, it takes full advantage of steel member and reinforced concrete member, compensates for respectively again
Deficiency（Steel member has good tensile strength and deformability in tensile zone, but easy tos produce 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 formed with In Reinforced Concrete Box Girder
Application of the bondbeam in China it is also more and more extensive.
Since current conventional two side leg of gantry hoisting frame is mounted on bridge both sides, occupation of land width is larger, track laying
When grading it is costly, and then overall cost is higher.In bridge construction process, such as in city narrow space, mountain area
Etc. under bad or MODEL OVER COMPLEX TOPOGRAPHY, place setting that may be not enough conventional gantry hoisting frame promotes large-span steel
It is more difficult to promote Large-span Steel Box Beam at this time for box beam.
Invention content
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 combine this method for improving to reduce gantry hoisting frame occupation of land width, save track
Grading expense when 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, described gantry are promoted
Frame includes crossbeam and two support columns, crane trolley is provided on the crossbeam, the upper end of two support column is respectively to crossbeam
Both ends head is supported and lower end is both provided with walking carriage, it is characterised in that：Further include being arranged on bridge top and along bridge
Beam moves towards the In Reinforced Concrete Box Girder of setting, and two upper end of support column is concordant, lower end has difference in height to form high support column
It is arranged in In Reinforced Concrete Box Girder upper surface, the low support with the walking carriage of low support column, the lower end of the high support column
The walking carriage of the lower end of column is arranged on ground.
This structure is using cast-in-place good In Reinforced Concrete Box Girder as the rail of 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 item
Bridge problem in the promotion 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 are 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 are 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 height difference it is always consistent and lateral distance is always consistent.
Further, beam surface upper of the present invention is provided with crane trolley track, the lifting platform along its length
Vehicle 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 lifting equipment operation room, the lifting equipment 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
Row.Promotion state in higher position personal observations' steel box-girder easy to operation is set between equipment operation.
Further, crossbeam of the present invention and two support columns are all made of square steel tube and angle steel is welded.
A kind of second aspect, steel box-girder method for improving of large span bondbeam, includes the following steps：
1）When bridge construction is to the steel box-girder lift structure for meeting setting large span bondbeam, large span knot is set
Close the steel box-girder lift structure of beam；
2）Utilize step 1）Crane trolley in the steel box-girder lift structure of the large span bondbeam of setting plays steel box-girder
It hangs corresponding position and is accordingly constructed, until the steel box-girder lifting of the position finishes；
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,
The steel box-girder lift structure of large span bondbeam is moved along certain distance by the walking carriage on height support column, then
Steel box-girder lifting and corresponding construction are carried out again；
4）Repeat step 3）, until the lifting of all steel box-girders finishes.
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 laying In Reinforced Concrete Box Girder on bridge top along bridge；
1.2）The In Reinforced Concrete Box Girder upper surface that setting is moved towards along bridge to bridge top is cleared up, to bridge side
Ground carry out cure process；
1.3）In Reinforced Concrete Box Girder upper surface after the cleaning is laid with high support column walking track, ground after curing
It is upper to be laid with low support column walking track；
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：
1, this structure combines this method for improving using cast-in-place good In Reinforced Concrete Box Girder as gantry hoisting frame high branch
The track laying face of dagger walking carriage reduces gantry hoisting frame and takes up an area width, solves city narrow space, mountain area etc. no
Bridge problem in the promotion of the steel box-girder of large span bondbeam under good or MODEL OVER COMPLEX TOPOGRAPHY, grading when saving track laying
Expense, good economy performance.
2, gantry hoisting frame can integrally be run along bridge length side, and the crane trolley of beam surface upper setting can be along bridge
Steel box-girder is transported in beam width direction, and constructing operation is flexible, and construction efficiency is high.
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 attached drawing：The gantry 1- hoisting frame；2- bridges；The ground 3-；
11- high support columns；The low support columns of 12-；13- crossbeams；14- walking carriages；15- crane trolleys；16- lifting equipments are grasped
Between work；21- In Reinforced Concrete Box Girders；22- steel box-girders.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
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 crossbeam 13 and two support columns, two upper end of support column 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 all made of square steel tube and angle steel is welded.Crane trolley 15, the high support column 11 and low support column are provided on crossbeam 13
12 upper end is supported respectively to the both ends head of crossbeam 13 and lower end is both provided with walking carriage 14.The armored concrete
The setting of box beam 21 moves towards setting on 2 top of bridge and along bridge 2, and the setting of walking carriage 14 of the lower end of the high support column 11 exists
The walking carriage 14 of 21 upper surface of In Reinforced Concrete Box Girder, the lower end of the low support column 12 is arranged on ground 3.
This structure is using cast-in-place good In Reinforced Concrete Box Girder 21 as the walking platform of 1 high support column 11 of gantry hoisting frame
The track laying face of vehicle 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 promotion of the steel box-girder of large span bondbeam under MODEL OVER COMPLEX TOPOGRAPHY, saves the walking platform of 11 lower end of high support column
Grading expense, good economy performance when the track laying of vehicle 14.Gantry hoisting frame 1 can integrally be run along 2 length side of bridge, horizontal
The crane trolley 15 of 13 upper surface of beam setting can transport steel box-girder 22 along 2 width direction of bridge, and constructing operation is flexible, construction effect
Rate is high.
As shown in Figure 1, in this structure, 21 upper surface of In Reinforced Concrete Box Girder 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；It is walked along bridge 2 on ground 3
It walks track to low support column is equipped with, the low support column walking track and 14 phase of walking carriage of the lower end of low support column are fitted
Match；The height difference of the high support column walking track and low support column walking track is always consistent and lateral distance remains
Unanimously.13 upper surface of crossbeam is provided with crane trolley track along its length, and the crane trolley 15 is transported along crane trolley track
Row（Steel box-girder 22 is lifted along bridge width direction）.
As shown in Figure 1, in this structure, 12 side of low support column is provided with lifting equipment operation room 16, the lifting equipment
16 height of operation room is higher than 21 upper surface of In Reinforced Concrete Box Girder；Operating personnel's 16 control 14 He of walking carriage between equipment operation
The operation of crane trolley 15,16 are arranged the promotion shape in higher position personal observations' steel box-girder 22 easy to operation between equipment operation
State.Specifically, it in practical operation, needs to carry out clearly 21 upper surface of In Reinforced Concrete Box Girder before being laid with high support column walking track
Reason；It needs to carry out cure process to ground before being laid with low support column walking track, to ensure the operational safety of walking carriage.It is promoted to
The steel box-girder 22 of 21 upper surface of In Reinforced Concrete Box Girder is moved to by the tripod for being arranged in 21 upper surface of In Reinforced Concrete Box Girder
Designated position.
A kind of steel box-girder method for improving of large span bondbeam, includes the following steps：
1）When the construction of bridge 2 is to the steel box-girder lift structure for meeting setting large span bondbeam, large span is set
The steel box-girder lift structure of bondbeam；
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 are lifted to corresponding position and are accordingly constructed, until the lifting of steel box-girder 22 of the position finishes；
3）In Reinforced Concrete Box Girder 21 in front of the steel box-girder lift structure of large span bondbeam is routed to setting length
Afterwards, the steel box-girder lift structure of large span bondbeam is moved along by a spacing by the walking carriage 14 on height support column
From then carrying out the lifting of steel box-girder 22 and corresponding construction again；
4）Repeat step 3）, until the lifting of all steel box-girders 22 finishes.
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 laying In Reinforced Concrete Box Girder 21 on bridge top along bridge 2；
1.2）21 upper surface of In Reinforced Concrete Box Girder that setting is moved towards along bridge 2 to 2 top of bridge is cleared up, to bridge
The ground 3 of 2 sides carries out cure process；
1.3）21 upper surface of In Reinforced Concrete Box Girder after the cleaning is laid with high support column walking track, ground after curing
Low support column walking track is laid on face 3；
1.4）The steel box-girder lift structure of large span bondbeam is installed.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although Shen
It asks someone to describe the invention in detail with reference to preferred embodiment, it will be understood by those of ordinary skill in the art that, to this hair
Bright technical solution is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered at this
In the right of invention.
Claims (6)
1. a kind of steel box-girder method for improving of large span bondbeam, it is characterised in that：Include the following steps：
1）When bridge construction is to the steel box-girder lift structure for meeting setting large span bondbeam, large span bondbeam is set
Steel box-girder lift structure；
The steel box-girder lift structure of the large span bondbeam includes gantry hoisting frame, and gantry hoisting frame includes crossbeam and two
Support column is provided with crane trolley on the crossbeam, and the both ends head of crossbeam is respectively propped up in the upper end of two support column
Support and lower end be both provided with walking carriage, further include be arranged bridge top and along bridge move towards be arranged reinforced concrete box
Beam, two upper end of support column is concordant, lower end has difference in height to form high support column and low support column, the high support column
The walking carriage setting of lower end is arranged in In Reinforced Concrete Box Girder upper surface, the walking carriage of the lower end of the low support column on ground
Face；
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
Corresponding position is simultaneously accordingly constructed, until the steel box-girder lifting of the position finishes；
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, then again into
Row steel box-girder lifts by crane and corresponding construction；
4）Repeat step 3）, until the lifting of all steel box-girders finishes.
2. the steel box-girder method for improving 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
Poor always consistent and lateral distance is always consistent.
3. the steel box-girder method for improving 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 method for improving of large span bondbeam according to claim 1 or 2, it is characterised in that：The low branch
Dagger side is provided with lifting equipment operation room, and the lifting equipment operation room height is higher than In Reinforced Concrete Box Girder upper surface.
5. the steel box-girder method for improving of large span bondbeam according to claim 1, it is characterised in that：The crossbeam and two
Support column is all made of square steel tube and angle steel is welded.
6. the steel box-girder method for improving of large span bondbeam according to claim 1 or 2, it is characterised in that：Step 1）If
The detailed process for setting the steel box-girder lift structure of large span bondbeam is：
1.1）Construction bridges move towards laying In Reinforced Concrete Box Girder on bridge top along bridge；
1.2）The In Reinforced Concrete Box Girder upper surface that setting is moved towards along bridge to bridge top is cleared up, to the ground of bridge side
Face carries out cure process；
1.3）In Reinforced Concrete Box Girder upper surface after the cleaning is laid with high support column walking track, ground upper berth after curing
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN107311047A CN107311047A (en) | 2017-11-03 |
| CN107311047B true CN107311047B (en) | 2018-09-28 |
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Families Citing this family (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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203877780U (en) * | 2014-05-15 | 2014-10-15 | 中交四公局第三工程有限公司 | High-leg and low-leg handle gantry crane for road |
| CN205257790U (en) * | 2015-12-30 | 2016-05-25 | 中铁十二局集团有限公司 | Fixed high -low leg handle portal crane |
| CN205772854U (en) * | 2016-05-31 | 2016-12-07 | 北京市政建设集团有限责任公司 | The walking track of a kind of gantry crane lifting steel truss girder sections supports |
| CN106760684B (en) * | 2017-02-28 | 2024-01-09 | 中国五冶集团有限公司 | Reading board 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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