CN108755418A - A kind of bridge incremental launching combination unit and its construction method - Google Patents
A kind of bridge incremental launching combination unit and its construction method Download PDFInfo
- Publication number
- CN108755418A CN108755418A CN201810470326.9A CN201810470326A CN108755418A CN 108755418 A CN108755418 A CN 108755418A CN 201810470326 A CN201810470326 A CN 201810470326A CN 108755418 A CN108755418 A CN 108755418A
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- CN
- China
- Prior art keywords
- thrustor
- buttress
- combination unit
- incremental launching
- types
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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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- 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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention's provides a kind of bridge incremental launching combination unit, including support, thrustor and steel box-girder, thrustor are installed in support, and steel box-girder is installed on thrustor；Support includes Y types buttress and longeron, and longeron is installed at the top of Y types buttress, and thrustor is installed on longeron.A kind of bridge incremental launching combination unit of the present invention, uses Y types buttress and is combined to form holder with longeron, and Y type holders are installed on basis or permanent bridge pier, to effectively reduce construction cost, shortens construction period.Meanwhile pushing tow buttress occupied space of the invention is smaller, can effectively reduce removal and destruction to existing building and pipeline within the scope of construction pushing tow buttress.
Description
Technical field
The present invention relates to technical field of bridge construction, combine the unit and its construct more particularly, to a kind of bridge incremental launching
Method.
Background technology
With the fast development of bridge construction, incremental launching construction technique is widely used in bridge construction.
The general bridge erection across structures such as existing railway, highways uses incremental launching method, and steel box-girder is constructed will cross over
The side of object is assembled paragraph by paragraph along bridge longitudinal axis, lays pushing tow buttress in limited space between structures group and pushing tow is set
Standby, pushing steel box girder slides onto predetermined spanning, then accurate adjustment girder steel along longitudinal direction, and it is in place to fall beam, removes pushing tow buttress.
Currently, domestic and abroad bridge pushing tow buttress construction technology mainly uses 4 bolt steel pipes, bridging and vertically and horizontally distributes
Beam forms a pushing tow buttress, buttress need in the construction process in region structures and pipeline move and change or protect, increase
Construction cost is added, has extended construction period, the steel box-girder pushing tow of the confined space can not be well adapted to.It is a kind of special to be badly in need of
Pushing tow buttress, being capable of the safe and effective bridge incremental launching construction for solving the confined space.
Invention content
It is high and can utmostly utilize the bridge top of existing structure object that the present invention provides a kind of simple in structure, space availability ratio
Combination unit and its construction method are pushed away, it can not conventional arrangement pushing tow under limit space to solve existing highway bridge pushing tow combination unit
Buttress carries out the technical issues of bridge incremental launching construction.
According to an aspect of the present invention, a kind of bridge incremental launching combination unit, including support, thrustor and steel case are provided
Beam, the thrustor are installed in the support, and the steel box-girder is installed on the thrustor；The support includes Y
Type buttress and longeron, the longeron are installed at the top of the Y types buttress, and the thrustor is installed on the longeron.
On the basis of said program preferably, the Y types buttress includes bearing and holder, and two holders are symmetrically installed in
On the bearing.
On the basis of said program preferably, the Y types buttress further includes lateral lateral, and the transverse direction lateral is erected at two
Between the holder.
On the basis of said program preferably, further include basis, pre-embedded steel slab and pre-buried lower margin spiral shell are embedded on the basis of described
Bolt, the bottom of the bearing by the pre-embedded anchoring bolts and pre-embedded steel slab be installed in it is described on the basis of.
On the basis of said program preferably, the Y types buttress further includes longitudinal lateral, it is described longitudinal direction lateral one end with it is described
Lateral lateral is connected, and the other end of the longitudinal direction lateral is connected with bridge pier.
On the basis of said program preferably, the thrustor includes multigroup jack, the transverse center of the jack
For the center of gravity of the steel box-girder.
On the basis of said program preferably, jack described in every group includes longitudinal jack, lateral jack and vertical thousand
Jin top.
The present invention also provides a kind of construction methods of bridge incremental launching combination unit as described above, include the following steps：
Step S1 builds holder, thrustor is fixed on the longeron, and steel box-girder is made to be installed in the pushing tow dress
It sets；
Step S2, adjustment thrustor are completed steel box-girder and are adjusted with the position in upper and lower three directions around.
A kind of bridge incremental launching combination unit of the present invention, uses Y types buttress and is combined to form holder with longeron, and by Y types
Holder is installed on basis or permanent bridge pier, to effectively reduce construction cost, shortens construction period.
Meanwhile pushing tow buttress occupied space of the invention is smaller, can effectively reduce within the scope of construction pushing tow buttress to existing
The removal and destruction of building and pipeline.
Description of the drawings
Fig. 1 is the side view of the bridge incremental launching combination unit of the present invention；
Fig. 2 is the front view of the bridge incremental launching combination unit of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Referring to Fig. 1, and combine shown in Fig. 2, the present invention provides a kind of bridge incremental launching combination unit, including support 10,
Thrustor 30 and steel box-girder 40, wherein thrustor 30 is installed in support 10, and steel box-girder 40 is installed in thrustor 30
On；Support 10 includes Y types buttress 11 and longeron 20, and longeron 20 is installed in 11 top of Y types buttress, and thrustor 30 is installed in longeron
On 20.
The Y types buttress 11 of the present invention includes bearing 12 and holder 13, and two holders 13 are symmetrically installed on bearing 12, make two
Y-type structure is formed between a holder 13 and bearing 12.In order to further make holder 13 more stablize, it is more uniformly stressed, this hair
Bright Y types buttress 11 further includes lateral lateral 14, and lateral lateral 14 is erected between two holders 13, right using lateral lateral 14
The active force of two holders 13 further strengthens the intensity of holder 13, and 20 welded type of longeron is fixed on holder 13.
The invention also includes basis 50, it is embedded with pre-embedded steel slab 15 and pre-embedded anchoring bolts 16 on basis 50, bearing 12
Bottom is anchored at by pre-embedded anchoring bolts 16 on basis 50, and pre-embedded steel slab 15 is anchored on basis 50.
Further, in order to improve the integrally-built stability under loading performance of the present invention, Y types buttress 11 of the invention also wraps
Longitudinal lateral 17 is included, 17 one end of longitudinal lateral is connected with lateral lateral 14, and the other end of longitudinal lateral 17 is connected with bridge pier.
As the preferred embodiments of the invention, one end of longitudinal lateral 17 of the invention can also be connected with holder 13,
The other end of longitudinal lateral 17 is connected with bridge pier, as shown in Figure 2.
The thrustor 30 of the present invention includes multigroup jack, and the transverse center of jack is the weight of the steel box-girder 40
The heart, and every group of jack includes longitudinal jack, lateral jack and vertical jack, can be realized to steel case using jack
Adjusting around beam 40 and on upper and lower three directions.
The present invention also provides a kind of construction methods of bridge incremental launching combination unit as described above, include the following steps：
Step S1 builds holder 13, thrustor 30 is fixed on the longeron 20, and steel box-girder 40 is made to be installed in institute
It states on thrustor 30；
Step S2, adjustment thrustor 30 are completed steel box-girder 40 and are adjusted with the position in upper and lower three directions around.
Wherein, in step S1 build holder 13 comprise the concrete steps that, pour basis 50 when and meanwhile construct basis 50 pre-embedded steel slabs
15 and pre-embedded anchoring bolts 16, construct pier shaft when pre-embedded steel slab 15 and pier shaft anchor bar in pier shaft simultaneously, to improve pier shaft
Intensity；
The bearing 12 of Y types holder 13 is connect into processing by carbon dioxide gas arc welding, and ray is carried out to all weld seams
Flaw detection and ultrasonic flaw detection, it is ensured that be welded to connect intensity；
Y types buttress is fixedly connected by pre-embedded anchoring bolts 16 and basis 50, and Y types buttress 11 is passed through into longitudinal direction
Lateral 17 is welded and fixed with pier shaft pre-embedded steel slab 15；
Longeron 20 is finally fixed by welding in the top of holder 13, walking jack is fixed on longeron 20.
A kind of bridge incremental launching combination unit of the present invention, uses Y types buttress 11 and is combined to form holder 13 with longeron 20, and
Y types holder 13 is installed on basis 50 or permanent bridge pier, to effectively reduce construction cost, shortens construction period.
Meanwhile pushing tow buttress occupied space of the invention is smaller, can effectively reduce within the scope of construction pushing tow buttress to existing
The removal and destruction of building and pipeline.
A kind of bridge incremental launching combination unit provided by the invention, has following advantages：
1, pushing tow buttress of the invention can maximally utilize permanent bridge pier and basis 50, save construction cost.
2, pushing tow buttress occupied space of the invention is smaller, can effectively reduce and be constructed to existing within the scope of construction pushing tow buttress
Object and moving for pipeline change and destroy.
3, the present invention is intelligent, information-based by the construction of digital control system configures, and reaches work progress and monitors entirely, is reached with this
To the harmony and continuity of multiplexing kind coordinative construction.
Finally, the present processes are only preferable embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the protection of the present invention
Within the scope of.
Claims (8)
1. a kind of bridge incremental launching combination unit, which is characterized in that including support, thrustor and steel box-girder, the thrustor
It is installed in the support, the steel box-girder is installed on the thrustor；The support includes Y types buttress and longeron, institute
It states longeron to be installed at the top of the Y types buttress, the thrustor is installed on the longeron.
2. a kind of bridge incremental launching combination unit as described in claim 1, which is characterized in that the Y types buttress include bearing and
Holder, two holders are symmetrically installed on the bearing.
3. a kind of bridge incremental launching combination unit as claimed in claim 2, which is characterized in that the Y types buttress further includes transverse direction
Lateral, the transverse direction lateral are erected between two holders.
4. a kind of bridge incremental launching combination unit as claimed in claim 2, which is characterized in that further include basis, on the basis of described
It is embedded with pre-embedded steel slab and pre-embedded anchoring bolts, the bottom of the bearing is installed by the pre-embedded anchoring bolts and pre-embedded steel slab
On the basis of described.
5. a kind of bridge incremental launching combination unit as claimed in claim 3, which is characterized in that the Y types buttress further includes longitudinal direction
Lateral, described longitudinal direction lateral one end are connected with the lateral lateral, and the other end of the longitudinal direction lateral is connected with bridge pier.
6. a kind of bridge incremental launching combination unit as described in claim 1, which is characterized in that the thrustor includes multigroup thousand
Jin top, the transverse center of the jack are the center of gravity of the steel box-girder.
7. a kind of bridge incremental launching combination unit as claimed in claim 6, which is characterized in that jack described in every group includes longitudinal
Jack, lateral jack and vertical jack.
8. a kind of construction method of bridge incremental launching combination unit as described in claim 1, which is characterized in that including following step
Suddenly：
Step S1 builds holder, thrustor is fixed on the longeron, and steel box-girder is made to be installed in the thrustor
On；
Step S2, adjustment thrustor are completed steel box-girder and are adjusted with the position in upper and lower three directions around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810470326.9A CN108755418A (en) | 2018-05-16 | 2018-05-16 | A kind of bridge incremental launching combination unit and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810470326.9A CN108755418A (en) | 2018-05-16 | 2018-05-16 | A kind of bridge incremental launching combination unit and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108755418A true CN108755418A (en) | 2018-11-06 |
Family
ID=64008244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810470326.9A Pending CN108755418A (en) | 2018-05-16 | 2018-05-16 | A kind of bridge incremental launching combination unit and its construction method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108755418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123238A (en) * | 2021-04-02 | 2021-07-16 | 中国建筑第六工程局有限公司 | Transverse moving erection method for wide-section steel truss girder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196097A (en) * | 1997-01-13 | 1998-07-28 | Tone Chika Gijutsu Kk | Moving support device and construction method for temporary structure using it |
| CN106948268A (en) * | 2017-04-24 | 2017-07-14 | 中铁七局集团武汉工程有限公司 | Variable Section Steel box beam pushing tow is combined the unit and application method |
| CN107059602A (en) * | 2017-05-13 | 2017-08-18 | 林再颐 | A kind of Y type bridge piers of high-mechanic intensity |
| CN107841952A (en) * | 2017-11-30 | 2018-03-27 | 中铁二十局集团第工程有限公司 | Adhesion type high-altitude mount support and rigid frame-continuous girder end bay cast-in-place section construction method |
-
2018
- 2018-05-16 CN CN201810470326.9A patent/CN108755418A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196097A (en) * | 1997-01-13 | 1998-07-28 | Tone Chika Gijutsu Kk | Moving support device and construction method for temporary structure using it |
| CN106948268A (en) * | 2017-04-24 | 2017-07-14 | 中铁七局集团武汉工程有限公司 | Variable Section Steel box beam pushing tow is combined the unit and application method |
| CN107059602A (en) * | 2017-05-13 | 2017-08-18 | 林再颐 | A kind of Y type bridge piers of high-mechanic intensity |
| CN107841952A (en) * | 2017-11-30 | 2018-03-27 | 中铁二十局集团第工程有限公司 | Adhesion type high-altitude mount support and rigid frame-continuous girder end bay cast-in-place section construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123238A (en) * | 2021-04-02 | 2021-07-16 | 中国建筑第六工程局有限公司 | Transverse moving erection method for wide-section steel truss girder |
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Application publication date: 20181106 |