CN110004838A - A kind of ovum type underpass bridge cast-in-situ box beam bracket template system - Google Patents
A kind of ovum type underpass bridge cast-in-situ box beam bracket template system Download PDFInfo
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- CN110004838A CN110004838A CN201910408667.8A CN201910408667A CN110004838A CN 110004838 A CN110004838 A CN 110004838A CN 201910408667 A CN201910408667 A CN 201910408667A CN 110004838 A CN110004838 A CN 110004838A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 52
- 102000002322 Egg Proteins Human genes 0.000 title claims abstract description 31
- 108010000912 Egg Proteins Proteins 0.000 title claims abstract description 31
- 210000004681 ovum Anatomy 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 117
- 239000010959 steel Substances 0.000 claims abstract description 117
- 238000009432 framing Methods 0.000 claims abstract description 47
- 238000009826 distribution Methods 0.000 claims abstract description 34
- 238000009415 formwork Methods 0.000 claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 17
- 238000004513 sizing Methods 0.000 claims description 17
- 239000002023 wood Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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 invention discloses a kind of ovum type underpass bridge cast-in-situ box beam bracket template systems, the supporting zone of the cast-in-situ box girder is divided into arc formwork area, steel pipe support area and full framing area, arc formwork area and steel pipe support area are correspondingly arranged on box beam end support structure, box beam end support structure includes several steel pipe posts and rides upon girder on steel pipe post, the more template distribution beams axially arranged along underpass are erected on the corresponding girder in arc formwork area, punching block of being formed is arranged in template distribution beam, the more bracket distribution beams axially arranged along underpass are erected on the corresponding girder in steel pipe support area, the bracket in steel pipe support area is supported in bracket distribution beam.Present invention is generally directed to ovum type underpass, meet end construction stress needs by the box beam end support structure at underpass both ends, and using the curved support structure for cooperatively forming underpass in arc formwork area, steel pipe support area and full framing area, to meet cast-in-situ box girder structure of the bottom as arc.
Description
Technical field
The invention belongs to technical field of bridge construction, in particular to a kind of ovum type underpass bridge cast-in-situ box beam bracket template
System.
Background technique
In the construction of existing underpass bridge, the structure type of ovum type underpass is more special, underpass top
Portion is arcuate structure, and the end regions of arcuate structure abut pier stud, and upper part structure height is higher, and concrete load is larger,
Bracket span is lower simultaneously, according to conventional steel pipe Bailey truss, there is a problem of installation inconvenience, and can not be preferable
Meet the load stress demand of corresponding site.
Summary of the invention
It is an object of the invention to: in view of the above problems, provide a kind of existing mainly for ovum type underpass bridge
Pour the rack template system of box beam.
The technical scheme of the present invention is realized as follows: a kind of ovum type underpass bridge cast-in-situ box beam bracket template system,
It is characterized by: the supporting zone of the cast-in-situ box girder is divided into arc formwork area, steel pipe support area and full framing area, it is described
Arc formwork area and steel pipe support area are correspondingly arranged on box beam end support structure, and the box beam end support structure includes several
Steel pipe post and ride upon girder on steel pipe post, several steel pipe posts along underpass axial direction equidistantly distributed,
Horizontally disposed girder is provided on every steel pipe post, described girder one end rides upon steel pipe post upper end, and the other end is set
In in the preformed hole of abutment, the steel pipe post bottom end is supported in the concrete foundation of underpass bottom, in the arc
The more template distribution beams axially arranged along underpass are erected on the corresponding girder in template region, the arc formwork area uses
Sizing punching block, the sizing punching block are arranged in template distribution beam, are erected on the corresponding girder in the steel pipe support area more
The bracket of the bracket distribution beam that root is axially arranged along underpass, the steel pipe support area is supported in bracket distribution beam, described
The sizing punching block in arc formwork area and the bracket in steel pipe support area and full framing area collectively form cast-in-situ box girder bottom template
Support system.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, steel pipe post setting with
The web corresponding position of cast-in-situ box girder, the girder along cast-in-situ box girder web length direction arrangement and be located at web just under
Side.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, the steel pipe post are arranged in steel
Pipe holder area, and steel pipe post bottom end is directly supported in concrete foundation, and is carried out with the pre-embedded steel slab in concrete foundation
Welding.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, in the preformed hole of the abutment
It is provided with pre-embedded steel slab, the pre-embedded steel slab in end and preformed hole in the girder insertion preformed hole is welded, the master
The beam other end is overlapped on the top of corresponding steel pipe post and is bolted to connection.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, the steel pipe support area and Man Tang
Rack area is all made of bowl buckle bracket, and the bowl buckle bracket in the steel pipe support area sets up the arranged direction one in direction Yu bracket distribution beam
It causes, i.e., is axially set up along underpass, the bowl buckle bracket in the full framing area is walked along the web for being parallel to cast-in-situ box girder
To being set up.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, bowl buckle in the steel pipe support area
The spacing that bracket is set up is less than the spacing set up of bowl buckle bracket in full framing area, in the full framing area, cast-in-situ box girder
The bowl buckle bracket of web corresponding region set up spacing less than in full framing area, the bowl buckle branch of the cavity corresponding region of cast-in-situ box girder
Frame sets up spacing.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, the sizing punching block upper surface are in
The pedestal upper end portion in arc, the steel pipe support area and full framing area forms the supporting surface of arc, the arc of the sizing punching block
Shape face cooperatively forms cast-in-situ box girder with the template on the supporting surface for being supported on steel pipe support area and the formation of full framing area bracket
Arc bed die.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, in the steel pipe support area and completely
It is provided with steel pipe longitudinal direction distribution beam on the holder jacking of hall rack area, it is laggard that steel pipe longitudinal direction distribution beam bends to corresponding radian
Row installation, is provided with lumps of wood transverse distribution beam, the pattern board supporting is in lumps of wood transverse distribution in the distribution beam of the steel pipe longitudinal direction
Liang Shang.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, the underpass and top bridge
Beam arrangement in a certain angle, the i.e. longitudinal center line of underpass and bridge structure center line have certain angle, the steel pipe
The bracket of rack area arranges that the bracket in the full framing area is along bridge structure in oblique along the longitudinal center line of underpass
The orthogonal thereto arrangement of heart line, the transition region between the steel pipe support area and full framing area encrypt cloth by the bracket in full framing area
It sets.
Ovum type underpass bridge cast-in-situ box beam bracket template system of the present invention, the bracket in the steel pipe support area
It is attached with the bracket in full framing area by the more steel tube fasteners arranged on vertical at a certain distance, by two regions
Bracket forms whole common stress system.
Present invention is generally directed to the underpass bridges of ovum type, are met by the box beam end support structure at underpass both ends
End construction stress needs, and cooperatively forming in underpass using arc formwork area, steel pipe support area and full framing area
The curved support structure in portion, to meet cast-in-situ box girder structure of the bottom as arc.
Detailed description of the invention
Fig. 1 is overall facade layout drawing of the invention.
Fig. 2 is the structural schematic diagram of setting sizing punching block in the present invention.
Fig. 3 is overall floor plan of the invention.
Fig. 4 is the transition region rack arrangement figure in the present invention between steel pipe support area and full framing area.
Fig. 5 is A-A cross-sectional view in Fig. 1.
Fig. 6 is the portion the I enlarged drawing in Fig. 5.
Fig. 7 is B-B cross-sectional view in Fig. 1.
Fig. 8 is C-C cross-sectional view in Fig. 1.
Marked in the figure: 1 is cast-in-situ box girder, 2 be arc formwork area, and 3 be steel pipe support area, and 4 be full framing area, and 5 be steel
Tube column, 6 be girder, and 7 be preformed hole, and 8 be concrete foundation, and 9 be template distribution beam, and 10 be sizing punching block, and 11 be bracket point
With beam, 12 be web, and 13 be bowl buckle bracket, and 14 be cavity, and 15 be template, and 16 be steel pipe longitudinal direction distribution beam, and 17 is lateral for the lumps of wood
Distribution beam.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figures 1-8, a kind of ovum type underpass bridge cast-in-situ box beam bracket template system is arc for box beam bottom
The design feature of gradual change, the supporting zone of the cast-in-situ box girder 1 are divided into arc formwork area 2, steel pipe support area 3 and full framing
Area 4.Wherein, the spacing that 3 inner support of steel pipe support area is set up is less than the spacing that 4 inner support of full framing area is set up, described
In full framing area 4, the bracket of 12 corresponding region of web of cast-in-situ box girder 1 set up spacing less than in full framing area 4, cast-in-place case
The bracket 13 of 14 corresponding region of cavity of beam 1 sets up spacing.
In the present embodiment, the arc formwork head of district 2m, the region abut pier stud, and upper part structure height is higher, mix
Solidifying soil load is larger, to ensure this regional structure safety, guarantees that structure has enough rigidity, therefore the region bracket is adopted
It is constructed with sizing punching block 10, sizing punching block is designed by specialized factory and processed, and load should meet structure stress needs；It is described
Steel pipe support head of district 3.512m, the steel pipe support area 3 use bowl buckle bracket 13, set up direction along underpass it is axial into
Row is set up.In view of the area top structural load is larger, therefore it is 30cm × 30cm that the region bowl buckle bracket, which sets up spacing,；
The full framing head of district 13.2m, the full framing area 4 use console mode bowl buckle bracket 13, set up direction edge and are parallel to
The trend of web 12 of cast-in-situ box girder 1 is set up, and it is 30cm × 60cm that the corresponding bowl buckle bracket of this region web, which sets up spacing, empty
It is 60cm × 60cm that the bracket 13 of chamber corresponding region, which sets up spacing,.
Wherein, the arc formwork area 2 and steel pipe support area 3 are correspondingly arranged on box beam end support structure, the box beam
End support structure includes several steel pipe posts 5 and rides upon girder 6 on steel pipe post 5, several 5 edges of steel pipe post
Underpass axial direction equidistantly distributed is provided with horizontally disposed girder 6 on every steel pipe post 5, and described 6 one end of girder is set up
In 5 upper end of steel pipe post, the other end is placed in the preformed hole 7 of abutment, and 5 bottom end of steel pipe post is supported on underpass bottom
In the concrete foundation 8 in portion, it is erected with more on the corresponding girder 6 in the arc formwork area 2 and is axially arranged along underpass
Template distribution beam 9, the sizing punching block 10 is arranged in template distribution beam 9, in the corresponding girder 6 in the steel pipe support area 3
On be erected with the more bracket distribution beams 11 axially arranged along underpass, the bracket in the steel pipe support area 3 is supported on bracket
In distribution beam 11, the sizing punching block 10 in the arc formwork area 2 and the bracket in steel pipe support area 3 and full framing area 4 are common
Constitute the support system of 1 bottom template of cast-in-situ box girder.Moreover, stablizing support to box beam to improve, the steel pipe post 5 is set
It sets in 12 corresponding position of web with cast-in-situ box girder 1, web 12 length direction arrangement and position of the girder 6 along cast-in-situ box girder 1
In the underface of web 12.
10 upper surfaces of the sizing punching block are arc-shaped, and the cradle top in the steel pipe support area 3 and full framing area 4 is set
Regulating mechanism is equipped with the bearing height of adjusting bracket, the bracket is pressed according to the curve radian of ovum type underpass top curve
Certain height difference setting makes the pedestal upper end portion in the steel pipe support area 3 and full framing area 4 form the supporting surface of arc, described
The arcwall face of sizing punching block 10 and the template 15 on the supporting surface for being supported on steel pipe support area 3 and the formation of 4 bracket of full framing area
Cooperatively form the arc bed die of cast-in-situ box girder 1；It is provided on the holder jacking in the steel pipe support area 3 and full framing area 4
Steel pipe longitudinal direction distribution beam 16, steel pipe longitudinal direction distribution beam 16 are installed after bending to corresponding radian, longitudinal in the steel pipe
Lumps of wood transverse distribution beam 17 is provided in distribution beam 16, the template 15 is supported on lumps of wood transverse distribution beam 17.
Ovum type underpass of the invention is to effectively reduce Integral Loading since cast-in-place position arcwall face is more, existing
The bamboo slab rubber that part Curvature varying smaller portions template is all made of δ=15mm is poured, then uses sizing steel within the scope of the 2m of box beam end
Mould.
Due to being arcuate structure at the top of the underpass of bridge, load can generate horizontal loading to bracket under load action,
The steel pipe post 5 is arranged in steel pipe support area 3, and 5 bottom end of steel pipe post is directly supported in concrete foundation 8, and with it is mixed
Pre-embedded steel slab in solidifying earth foundation 8 is welded；For clear structure stress, concrete edge Angle Position under load action is prevented to be pressurized
It destroys, pre-embedded steel slab is provided in the preformed hole 7 of the abutment, the girder 6 is inserted into end and preformed hole in preformed hole 7
Pre-embedded steel slab in 7 is welded, and 6 other end of girder is overlapped on the top of corresponding steel pipe post 5 and is bolted
Connection.
In the present embodiment, the underpass and top bridge arrangement in a certain angle, i.e., in the axial direction of underpass
Heart line and bridge structure center line have certain angle, the longitudinal center line of the bracket in the steel pipe support area 3 along underpass
Arranged in oblique, the bracket in the full framing area 4 along the orthogonal thereto arrangement of bridge structure center line, the steel pipe support area 3 with
Transition region between full framing area 4 encrypts arrangement by the bracket in full framing area 4.Due to full framing and steel pipe support oblique
Partial region can not install bowl buckle frame by normal pitch, which is installed as needed, and installation principle is as follows:
The single steel pipe forced area of web region is not more than 30cm × 60cm；The single steel pipe forced area in remaining region is not more than 60cm
× 60cm, when field control, oblique region is installed by 30cm, i.e., when spacing is greater than 30cm, adds one of upright bar, be
Enhance steel pipe overall performance, the bracket in the steel pipe support area 3 and the bracket in full framing area 4 pass through on vertical at a certain distance
More steel tube fasteners of arrangement are attached, and the bracket in two regions is formed whole common stress system.
By taking the underpass bridge engineer application of Chengdu self-sufficient and strategically located region international bio industry city Incubator Park as an example, main bridge uses the present embodiment
Oval plane surface, transverse 19m, short axle 5m, maximum net is across 38m.To mitigate bridge structure self weight, using more chamber knots
Structure, two to prestressing force, and main bridge is divided into two width bridges arrangement, single width bridge width 20m, and 20 ° of main bridge oblique is pushed up bottom horizontal slope 1.5%, examined
It is lower to consider bracket span, main bridge box beam uses steel pipe shape steel bracket in cushion cap region segmental arc, remaining region uses console mode
Full framing carries out cast-in-place construction, and bracket scaffolding height is between 3m~8.5m.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of ovum type underpass bridge cast-in-situ box beam bracket template system, it is characterised in that: the support of the cast-in-situ box girder (1)
Region is divided into arc formwork area (2), steel pipe support area (3) and full framing area (4), the arc formwork area (2) and steel pipe
Rack area (3) is correspondingly arranged on box beam end support structure, the box beam end support structure include several steel pipe posts (5) with
And girder (6) on steel pipe post (5) is ridden upon, several steel pipe posts (5) are along underpass axial direction equidistantly distributed, often
It being provided on root steel pipe post (5) horizontally disposed girder (6), described girder (6) one end rides upon steel pipe post (5) upper end,
Its other end is placed in the preformed hole (7) of abutment, and steel pipe post (5) bottom end is supported on the coagulation soil matrix of underpass bottom
On plinth (8), the more templates axially arranged along underpass are erected on the corresponding girder (6) of the arc formwork area (2)
Distribution beam (9), the arc formwork area (2) are arranged using sizing punching block (10), the sizing punching block (10) in template distribution beam
(9) on, the more brackets point axially arranged along underpass are erected on the corresponding girder (6) of the steel pipe support area (3)
With beam (11), the bracket of the steel pipe support area (3) is supported on bracket distribution beam (11), and arc formwork area (2) determine
Fashioned iron mould (10) and the bracket of steel pipe support area (3) and full framing area (4) collectively form cast-in-situ box girder (1) bottom template
Support system.
2. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 1, it is characterised in that: the steel
Tube column (5) is arranged in web (12) corresponding position with cast-in-situ box girder (1), web of the girder (6) along cast-in-situ box girder (1)
(12) length direction arrangement and the underface positioned at web (12).
3. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 1, it is characterised in that: the steel
Tube column (5) is arranged in steel pipe support area (3), and steel pipe post (5) bottom end is directly supported on concrete foundation (8), and with
Pre-embedded steel slab in concrete foundation (8) is welded.
4. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 1, it is characterised in that: described
Pre-embedded steel slab is provided in the preformed hole (7) of abutment, the end and preformed hole (7) in girder (6) insertion preformed hole (7) are interior
Pre-embedded steel slab welded, girder (6) other end is overlapped on the top of corresponding steel pipe post (5) and is bolted
Connection.
5. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 1, it is characterised in that: the steel
Pipe holder area (3) and full framing area (4) are all made of bowl buckle bracket (13), the bowl buckle bracket (13) of the steel pipe support area (3)
It is consistent with the arranged direction of bracket distribution beam (11) to set up direction, i.e., is axially set up along underpass, the full framing
The bowl buckle bracket (13) in area (4) is set up along web (12) trend for being parallel to cast-in-situ box girder (1).
6. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 5, it is characterised in that: the steel
The spacing that the interior bowl buckle bracket (13) in pipe holder area (3) is set up is less than the spacing that full framing area (4) interior bowl buckle bracket (13) is set up,
The bowl buckle bracket (13) of interior, cast-in-situ box girder (1) web (12) corresponding region of the full framing area (4) is set up spacing and is less than completely
The bowl buckle bracket (13) of interior, cast-in-situ box girder (1) cavity (14) corresponding region in hall rack area (4) sets up spacing.
7. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 1, it is characterised in that: described fixed
Fashioned iron mould (10) upper surface is arc-shaped, and the pedestal upper end portion of the steel pipe support area (3) and full framing area (4) forms arc
Supporting surface, it is described sizing punching block (10) arcwall face be supported on steel pipe support area (3) and full framing area (4) bracket formation
Template (15) on supporting surface cooperatively forms the arc bed die of cast-in-situ box girder (1).
8. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 7, it is characterised in that: described
Steel pipe longitudinal direction distribution beam (16) is provided on the holder jacking of steel pipe support area (3) and full framing area (4), the steel pipe is longitudinal
Distribution beam (16) is installed after bending to corresponding radian, and the lumps of wood is provided in steel pipe longitudinal direction distribution beam (16) and is laterally divided
With beam (17), the template (15) is supported on lumps of wood transverse distribution beam (17).
9. ovum type underpass bridge cast-in-situ box beam bracket template system as claimed in any of claims 1 to 8, special
Sign is: the underpass and top bridge arrangement in a certain angle, the i.e. longitudinal center line and bridge structure of underpass
Center line has certain angle, and the bracket of the steel pipe support area (3) is arranged along the longitudinal center line of underpass in oblique, institute
The bracket in full framing area (4) is stated along the orthogonal thereto arrangement of bridge structure center line, the steel pipe support area (3) and full framing area
(4) transition region between encrypts arrangement by the bracket of full framing area (4).
10. ovum type underpass bridge cast-in-situ box beam bracket template system according to claim 9, it is characterised in that: described
The bracket in steel pipe support area (3) and the bracket of full framing area (4) pass through the more steel pipes arranged at a certain distance on vertical and buckle
Part is attached, and the bracket in two regions is formed whole common stress system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408667.8A CN110004838B (en) | 2019-05-16 | 2019-05-16 | Egg-shaped lower through road bridge cast-in-situ box girder support template system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408667.8A CN110004838B (en) | 2019-05-16 | 2019-05-16 | Egg-shaped lower through road bridge cast-in-situ box girder support template system |
Publications (2)
| Publication Number | Publication Date |
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| CN110004838A true CN110004838A (en) | 2019-07-12 |
| CN110004838B CN110004838B (en) | 2023-11-10 |
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| CN201910408667.8A Active CN110004838B (en) | 2019-05-16 | 2019-05-16 | Egg-shaped lower through road bridge cast-in-situ box girder support template system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777663A (en) * | 2019-10-31 | 2020-02-11 | 中交路桥华南工程有限公司 | Curved surface support |
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