CN107044090B - A kind of construction method of dual deck bridge - Google Patents
A kind of construction method of dual deck bridge Download PDFInfo
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- CN107044090B CN107044090B CN201710320369.4A CN201710320369A CN107044090B CN 107044090 B CN107044090 B CN 107044090B CN 201710320369 A CN201710320369 A CN 201710320369A CN 107044090 B CN107044090 B CN 107044090B
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- upper layer
- bridge
- supporting beam
- bracket
- bridge pier
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of construction methods of dual deck bridge, it is related to field of bridge construction, first lower layer's bridge is completed in construction, then multiple brackets are arranged on lower layer's bridge, upper layer bridge is poured on bracket, and then along construction direction movable support bracket, upper layer bridge is poured on bracket, it continues to move to bracket and pours upper layer bridge, complete entire upper layer bridge until pouring.The construction method of dual deck bridge of the invention, project amount is small, and time-consuming short, construction efficiency is high.
Description
Technical field
The present invention relates to field of bridge construction, and in particular to a kind of construction method of dual deck bridge.
Background technique
With the development of world economy, urban land resource day is becoming tight, Urban Bridge traffic increasingly congestion, in order to alleviate
Traffic pressure, dual deck bridge using more and more extensive.In the construction method of dual deck bridge, upper layer bridge and lower layer's bridge
Construction is first prefabricated multiple prefabricated girder segments, is then carried out lifting splicing with loop wheel machine.
The mode project amount of above-mentioned loop wheel machine lifting is larger, needs to expend huge manpower and material resources, takes a long time, and influences entire
The construction efficiency of bridge.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of construction method of dual deck bridge,
Project amount is small, and time-consuming short, construction efficiency is high.
To achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of construction method of dual deck bridge, first lower layer's bridge is completed in construction, is then arranged on lower layer's bridge more
A bracket pours upper layer bridge on the bracket, then moves the bracket along construction direction, pours on the bracket
Layer bridge, continues to move to the bracket and pours upper layer bridge, completes entire upper layer bridge until pouring.
Based on the above technical solution, the construction method of dual deck bridge includes the following steps:
S1: on all lower layer's bridge piers construction complete lower layer's bridge, and on lower layer's bridge along bridge to setting extremely
Few four upper layer bridge piers, four upper layer bridge piers be respectively the first upper layer bridge pier, the second upper layer bridge pier, third upper layer bridge pier and
4th upper layer bridge pier；
S2: it is arranged between the first upper layer bridge pier and the second upper layer bridge pier, the second upper layer bridge pier and third upper layer bridge pier
Multiple brackets, the bracket are placed on lower layer's bridge, and the bracket top is provided with temporary support, and in third upper layer bridge
Mounting suspension on pier；
S3: setting up the first supporting beam on the bracket between the first upper layer bridge pier and the second upper layer bridge pier, and
The second supporting beam is set up between the second upper layer bridge pier and third upper layer bridge pier, second supporting beam one end is erected at bracket
On, the other end is hung on the hanger；
S4: being arranged two side forms in the first supporting beam, and at least partly described side form is set up in second supporting beam,
The first segment of upper layer bridge is poured in two side forms；
S5: two side forms are moved in second supporting beam, several jack are installed in first segment, and use steel
Twisted wire connects first supporting beam and first segment, while connecting second supporting beam and first segment with steel strand wires, tears open
Except temporary support, the construction area for pouring upper layer bridge is moved the tray out；
S6: jack transfers first supporting beam, with flat car by the first supporting beam be transported to third upper layer bridge pier and
Between 4th upper layer bridge pier, and the mounting suspension on the 4th upper layer bridge pier, two hangers by the first supporting beam be promoted to
Bracket, is moved to the lower section of the first supporting beam and the second supporting beam by the identical height of the second supporting beam, and is reinstalled interim
Support makes temporary support be held in first supporting beam and the second supporting beam；
S7: the hanger on the bridge pier of third upper layer is removed, and two side forms are moved forward into the part side form and are located at institute
It states in the first supporting beam, and pours the second section of upper layer bridge, repeat the above steps, until completing applying for entire upper layer bridge
Work.
Based on the above technical solution, first supporting beam is identical with the second support beam structure, and described second
Support beam includes multiple crossbeams along direction across bridge setting and one along the Bailey beam and bed die along bridge to setting, and the Bailey beam is set to
On all crossbeams, the bed die is set in the Bailey beam.
Based on the above technical solution, the temporary support is sand cylinder.
Based on the above technical solution, the step of removing the temporary support includes: the sand discharged in sand cylinder, makes to face
When support be detached from first supporting beam and the second supporting beam.
Based on the above technical solution, the upper layer bridge pier is a door type structure.
Based on the above technical solution, the bracket includes four support posts, and all support posts pass through
Several N-type truss are connected, and the temporary support is set on the support post.
Based on the above technical solution, the bracket further includes four suspension columns, and the support post is placed in the column
On foot.
Based on the above technical solution, in the movement bracket, jack first is placed in the lower section of the bracket,
The support post is jacked up, separates the support post with suspension column, then moves the support post.
Compared with the prior art, the advantages of the present invention are as follows:
(1) construction method of dual deck bridge of the invention, cast-in-site upper layer bridge, the mode phase with hoisting prefabricated beam
Than, project amount is small, and it is time-consuming short, and constructed using mobile stool, construction efficiency is high.
(2) temporary support of the invention is sand cylinder, and structure is simple, dismantles and easy to assembly, provides pole for work progress
Big convenience.
(3) bracket of the invention includes four support posts being connected by N-type truss, and portable construction is easy movement, applies
Work is convenient, and truss structure is secured, and stability is good, keeps work progress more safe and reliable.
Detailed description of the invention
Fig. 1 is construction procedure S1~S4 schematic diagram of dual deck bridge in the embodiment of the present invention；
Fig. 2 is the construction procedure S5 schematic diagram of dual deck bridge in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the construction procedure S6 of dual deck bridge in the embodiment of the present invention；
Fig. 4 is the schematic diagram of the construction procedure S7 of dual deck bridge in the embodiment of the present invention；
Fig. 5 is cross-sectional view of the Fig. 1 along the direction A-A；
Fig. 6 is the structural schematic diagram of bracket in the embodiment of the present invention.
In figure: 1- lower layer bridge, 2- lower layer bridge pier, the upper layer 3- bridge pier, the first upper layer 31- bridge pier, the second upper layer bridge of 32-
Pier, 33- third upper layer bridge pier, the 4th upper layer bridge pier of 34-, the upper layer 4- bridge, 41- first segment, 42- second section, 5- bracket,
51- temporary support, 52- support post, 53- suspension column, the first supporting beam of 6-, 71- crossbeam, 72- Bailey beam, 73- bed die, 7- second
Supporting beam, 8- side form.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
The embodiment of the present invention provides a kind of construction method of dual deck bridge, and first lower layer's bridge 1 is completed in construction, then in lower layer
Multiple brackets 5 are arranged on bridge 1, upper layer bridge 4 is poured on bracket 5, then along construction direction movable support bracket 5, on bracket 5
Upper layer bridge 4 is poured, bracket 5 is continued to move to and pours upper layer bridge 4, completes entire upper layer bridge 4 until pouring.
Referring to FIG. 1 to FIG. 4, the construction method of dual deck bridge specifically comprises the following steps: in the embodiment of the present invention
S1: on all lower layer's bridge piers 2 construction complete lower layer's bridge 1, and on lower layer's bridge 1 along bridge to setting at least
Four upper layer bridge piers 3, four upper layer bridge piers 3 are respectively the first upper layer bridge pier 31, the second upper layer bridge pier 32, third upper layer bridge pier 33
With the 4th upper layer bridge pier 34；
S2: the first upper layer bridge pier 31 and the second upper layer bridge pier 32, the second upper layer bridge pier 32 and third upper layer bridge pier 33 it
Between arrange that multiple brackets 5, bracket 5 are placed on lower layer's bridge 1,5 top of bracket is provided with temporary support 51, and on third upper layer
Mounting suspension on bridge pier 33；
S3: setting up the first supporting beam 6 on the bracket 5 between the first upper layer bridge pier 31 and the second upper layer bridge pier 32,
And the second supporting beam 7 is set up between the second upper layer bridge pier 32 and third upper layer bridge pier 33,7 one end of the second supporting beam is erected at support
On frame 5, the other end is hung on hanger；
S4: two side forms 8 are set in the first supporting beam 6, and at least partly side form 8 is set up in the second supporting beam 7, two
The first segment 41 of upper layer bridge 4 is poured in a side form 8；
S5: two side forms 8 are moved in the second supporting beam 7, several jack are installed in first segment 41, and use steel
Twisted wire connects the first supporting beam 6 and first segment 41, while connecting the second supporting beam 7 and first segment 11 with steel strand wires, removes
Bracket 5 is removed the construction area for pouring upper layer bridge 4 by temporary support 51；
S6: jack transfers the first supporting beam 6, and the first supporting beam 6 is transported to 33 He of third upper layer bridge pier with flat car
Between 4th upper layer bridge pier 34, and the mounting suspension on the 4th upper layer bridge pier 34, two hangers by the first supporting beam 6 be promoted to
Bracket 5, is moved to the lower section of the first supporting beam 6 and the second supporting beam 7 by the identical height of the second supporting beam 7, and is reinstalled
Temporary support 51 makes temporary support 51 be held in the first supporting beam 6 and the second supporting beam 7；
S7: the hanger on third upper layer bridge pier 33 is removed, and two side forms 8 are moved forward into part side form 8 and are located at the
In one supporting beam 6, and the second section 42 of upper layer bridge 4 is poured, repeated the above steps, until completing entire upper layer bridge 4
Construction.
In the present embodiment, the first supporting beam 6 is identical with 7 structure of the second supporting beam, and the second supporting beam 7 includes multiple along cross-bridges
To the crossbeam 71 of setting and one along the Bailey beam 72 and bed die 73 along bridge to setting, Bailey beam 72 is set on all crossbeams 71,
Bed die 73 is set in Bailey beam 72.
Temporary support 51 is sand cylinder, and structure is simple, dismantles and easy to assembly, provides a great convenience for work progress.
The step of removing temporary support 51 includes: the sand discharged in sand cylinder, and temporary support 51 is made to be detached from the first supporting beam 6 and the second support
Beam 7.
Shown in Figure 5, upper layer bridge pier 3 is a door type structure.Bracket 5 includes four support posts 52, and all supports are vertical
Column 52 is connected by several N-type truss, and temporary support 51 is set on support post 52.Bracket 5 further includes four suspension columns 53, support
Column 52 is placed on suspension column 53.51 portable construction of temporary support of the present embodiment is easy movement, easy for construction, and truss structure
Securely, stability is good, keeps work progress more safe and reliable.
It is shown in Figure 6, in movable support bracket 5, jack first is placed in the lower section of bracket 5, support post 52 is jacked up, makes
Support post 52 is separated with suspension column 53, then moves support post 52.
The construction method of dual deck bridge of the invention, cast-in-site upper layer bridge 4, compared with the mode of hoisting prefabricated beam,
Project amount is small, time-consuming short, and is constructed using mobile stool 5, and construction efficiency is high.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (8)
1. a kind of construction method of dual deck bridge, which comprises the steps of:
S1: lower layer's bridge (1) is completed in construction on all lower layer's bridge piers (2), and on lower layer's bridge (1) along bridge to setting
At least four upper layer bridge piers (3) are set, four upper layer bridge piers (3) are respectively the first upper layer bridge pier (31), the second upper layer bridge pier
(32), third upper layer bridge pier (33) and the 4th upper layer bridge pier (34)；
S2: in the first upper layer bridge pier (31) and the second upper layer bridge pier (32), the second upper layer bridge pier (32) and third upper layer bridge pier
(33) it is arranged between multiple brackets (5), the bracket (5) is placed on lower layer's bridge (1), and bracket (5) top is set
It is equipped with temporary support (51), and the mounting suspension on third upper layer bridge pier (33)；
S3: first is set up on the bracket (5) between the first upper layer bridge pier (31) and the second upper layer bridge pier (32)
It supports beam (6), and is set up the second supporting beam (7) between the second upper layer bridge pier (32) and third upper layer bridge pier (33), described second
Supporting beam (7) one end is erected on bracket (5), and the other end is hung on the hanger；
S4: being arranged two side forms (8) on the first supporting beam (6), and at least partly described side form (8) is set up in second support
On beam (7), the first segment (41) of upper layer bridge (4) is poured in two side forms (8)；
S5: two side forms (8) being moved on second supporting beam (7), install several jack on first segment (41),
And first supporting beam (6) and first segment (41) are connected with steel strand wires, while connecting second supporting beam with steel strand wires
(7) and bracket (5) are removed the construction area for pouring upper layer bridge (4) by first segment (41), dismounting temporary support (51)；
S6: jack transfers first supporting beam (6), and the first supporting beam (6) is transported to third upper layer bridge pier with flat car
(33) between the 4th upper layer bridge pier (34), and the mounting suspension on the 4th upper layer bridge pier (34), two hangers are by first
Supporting beam (6) is promoted to the identical height with the second supporting beam (7), and bracket (5) is moved to the first supporting beam (6) and second
The lower section for supportting beam (7), and reinstalls temporary support (51), make temporary support (51) be held in first supporting beam (6) and
Second supporting beam (7)；
S7: the hanger on third upper layer bridge pier (33) is removed, and two side forms (8) are moved forward into the part side form (8)
On first supporting beam (6), and the second section (42) of upper layer bridge (4) is poured, repeated the above steps, until completing
The construction of entire upper layer bridge (4).
2. the construction method of dual deck bridge as described in claim 1, it is characterised in that: first supporting beam (6) and second
Supporting beam (7) structure is identical, and second supporting beam (7) includes multiple crossbeams (71) along direction across bridge setting and one along bridge
To the Bailey beam (72) and bed die (73) of setting, the Bailey beam (72) is set on all crossbeams (71), the bed die
(73) it is set on the Bailey beam (72).
3. the construction method of dual deck bridge as described in claim 1, it is characterised in that: the temporary support (51) is sand cylinder.
4. the construction method of dual deck bridge as claimed in claim 3, which is characterized in that remove the step of the temporary support (51)
Suddenly include: the sand discharged in sand cylinder, temporary support (51) is made to be detached from first supporting beam (6) and the second supporting beam (7).
5. the construction method of dual deck bridge as described in claim 1, it is characterised in that: the upper layer bridge pier (3) is a gate
Structure.
6. the construction method of dual deck bridge as described in claim 1, it is characterised in that: the bracket (5) includes four supports
Column (52), all support posts (52) are connected by several N-type truss, and the temporary support (51) is set to the support
On column (52).
7. the construction method of dual deck bridge as claimed in claim 6, it is characterised in that: the bracket (5) further includes four columns
Foot (53), the support post (52) are placed on the suspension column (53).
8. the construction method of dual deck bridge as claimed in claim 7, it is characterised in that: in the movement bracket (5), first exist
Jack is placed in the lower section of the bracket (5), jacks up the support post (52), makes the support post (52) and suspension column (53)
Separation, then moves the support post (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320369.4A CN107044090B (en) | 2017-05-09 | 2017-05-09 | A kind of construction method of dual deck bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710320369.4A CN107044090B (en) | 2017-05-09 | 2017-05-09 | A kind of construction method of dual deck bridge |
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| CN107044090A CN107044090A (en) | 2017-08-15 |
| CN107044090B true CN107044090B (en) | 2019-02-15 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049314A (en) * | 2017-12-12 | 2018-05-18 | 中交公局第二工程有限公司 | A kind of bridge double layer box beam construction method |
| CN108951430B (en) * | 2018-08-31 | 2021-02-26 | 张跃 | Road and bridge field installation structure and method and crane |
| CN110258334A (en) * | 2019-05-07 | 2019-09-20 | 中交一公局桥隧工程有限公司 | Operation platform and construction method |
| CN110468721B (en) * | 2019-08-29 | 2021-04-20 | 中铁大桥局集团有限公司 | Large-span trestle cantilever construction method |
| CN110878525B (en) * | 2019-11-06 | 2022-04-05 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
| CN111455800B (en) * | 2020-03-12 | 2021-04-27 | 中铁大桥局集团有限公司 | Construction method of double-layer double-width bridge with wide top and narrow bottom |
| CN112832136B (en) * | 2021-01-06 | 2022-08-30 | 中铁大桥局集团第四工程有限公司 | Cast-in-place support on beam and fractional local preloading method thereof |
| CN112921813B (en) * | 2021-01-25 | 2022-06-21 | 中建科工集团有限公司 | Double-layer multi-span bridge construction method |
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| CN104109999A (en) * | 2014-06-26 | 2014-10-22 | 中铁大桥局股份有限公司 | Construction method for bridge tower transverse beams |
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|---|---|---|---|---|
| CN1528985A (en) * | 2003-10-15 | 2004-09-15 | 上海市第五建筑有限公司 | Free height limited river bridge pier underpart sturcture construction method |
| CN101424072A (en) * | 2008-11-18 | 2009-05-06 | 中铁一局集团有限公司 | Counter weight control construction method for large span un-symmetric segment stayed-cable bridge |
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