CN107012796A - A kind of wide, bracket of No. zero block construction of squat pier box beam and construction method - Google Patents
A kind of wide, bracket of No. zero block construction of squat pier box beam and construction method Download PDFInfo
- Publication number
- CN107012796A CN107012796A CN201710380081.6A CN201710380081A CN107012796A CN 107012796 A CN107012796 A CN 107012796A CN 201710380081 A CN201710380081 A CN 201710380081A CN 107012796 A CN107012796 A CN 107012796A
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- Prior art keywords
- bracket
- distribution beam
- zero block
- pier
- wide
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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 relates to a kind of wide, bracket of No. zero block construction of squat pier box beam and construction method, belong to road and bridge construction field.Its key step includes：Shelf bracket is installed in pier surrounding, shelf bracket is arranged in pier on bracket built-in fitting；Distribution beam is placed above shelf bracket, exterior sheathing is placed in distribution beam, inner template is installed inside box beam；By strut lower end, on the built-in fitting of cushion cap, upper end is connected with distribution beam；After strut is installed, you can pour the concrete of No. zero block.
Description
Technical field
It is to be related to one kind to be used for wide, squat pier continuous box girder zero specifically the present invention relates to road and bridge construction field
The bracket and construction method of number block construction.
Background technology
Under the drive that economy is developed rapidly at home, high-speed railway also enters the fast development stage with highway.It is full
Each region of foot requires, gradually increases across railway, across highway, cross a river stream and continuous bridge across valley.Typically, the continuous beam bridge construction
Constructed using Hanging Basket cantilever pouring, No. zero block is then constructed using bracket.But, when the lateral dimension of No. zero block is more than the horizontal stroke of pier top
To size, and cantilevered out size it is larger when, then bring potential safety hazard to construction.For across bridge constructions such as road, rivers, not possessing
The condition of full framing is set up, though the laying of encryption bracket reinforcing bar can reduce danger, No. zero block can not be thoroughly solved and mix
Solidifying soil pours the problem of weight is big.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, it is ensured that construction safety and construction period, and is considered
Economic benefit, now constructs for wide No. zero block, No. zero block of squat pier box beam, invents a kind of new bracket structure.The carrier structure,
Simple in construction, field conduct easily, and is constructed relative to No. zero traditional block bracket, and working security is higher, prevents safe thing
Therefore produce, significant economic benefit and social benefit are brought to unit in charge of construction, it is significant.
In order to reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of bracket for No. zero block construction of wide, squat pier box beam that the present invention is provided, including be arranged on pier top direction across bridge and
Vertical bridge to position shelf bracket, place distribution beam respectively above described shelf bracket；Placed above distribution beam outer
Template, the exterior sheathing is used for the part for supporting No. zero block to have more pier top；Inner template is placed in the top of distribution beam, the inner template is used
In constant zero block web and flange plate；The support for supporting distribution beam is respectively mounted in four Angle Positions of the cushion cap at pier bottom
Bar.
Further, described distribution beam includes vertical bridge to distribution beam and direction across bridge distribution beam, and described vertical bridge is to distribution
Beam and the layering of direction across bridge distribution beam are alternately placed on bracket, to ensure the stability of whole device.
Present invention also offers a kind of wide, No. zero block construction of squat pier box beam bracket construction method, comprise the following steps：
(1) pier top direction across bridge and vertical bridge to position multiple shelf brackets are installed, above described shelf bracket point
Distribution beam is not placed；
(2) exterior sheathing is placed above distribution beam, the exterior sheathing is used for the part for supporting No. zero block to have more pier top；
(3) inner template is placed in the top of distribution beam, the inner template is used for constant zero block web and flange plate；
(4) it is respectively mounted strut for supporting distribution beam in four Angle Positions of the cushion cap at pier bottom.
Further, step (1) described shelf bracket is mounted on pier top bracket built-in fitting in the above method.
Further, the distribution beam in the above method in step (1) includes vertical bridge to distribution beam and direction across bridge distribution beam, institute
The vertical bridge stated alternately is placed on bracket to distribution beam and the layering of direction across bridge distribution beam.
Further, in the above method in step (2), (3), bracket bears template deadweight, bracket deadweight, flange plate
Weight and the block web weight of part zero.
Further, in the above method in step (4), the size of described cushion cap cross section is more than the size at pier bottom,
It is suitable with the area of the cross section formed of eaves outside bracket.
Further, in the above method in step (4), strut is located on cushion cap on strut built-in fitting.
Further, in the above method in step (4) if in cushion cap it is smaller, can be set outside cushion cap pedestal be used for strut
Support.
Further, the preferred tubular element of support bar described in the above method, such as needs larger support force, can be filled in pipe
Concrete is noted, to strengthen its bearing capacity.
The beneficial effects of the invention are as follows：
For wide No. zero block box girder construction, box girder web and flange plate are beyond the external boundary of pier, and its weight is by No. zero
Block bracket undertakes, as shown in figure 4, and near corner only have distribution beam undertake, enter line carrier force analysis check when, No. 10
Easily there is the situation beyond permissible range in the vertical deformation of position and the stress of No. 11 positions, as shown in figure 5, to reduce such effect
Should, tetra- positions of a, b, c, d on bracket are provided with strut support, and the setting of strut not only increases bracket stress checking calculation
Safety coefficient, while also increasing construction safety coefficient, has saved the cost of encryption distribution beam, has played and prevent construction accident
Effect, provide direct economic benefit for unit in charge of construction, the reference of referentiability provided for the construction of No. zero block bracket, is had
There is important social effect.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is strut arrangement transverse cross-sectional view in the present invention；
Fig. 2 is strut arrangement longitudinal sectional drawing in the present invention；
Fig. 3 is bracket arrangement top view in the present invention；
Fig. 4 is that bracket checking computations are transfinited differentiation Butut in the present invention；
Fig. 5, Fig. 6 are to whether there is strut bracket deformation comparison diagram in the present invention；
In figure：1st, No. zero block；2nd, strut；3rd, cushion cap；4th, pier；5th, shelf bracket；6th, distribution beam；7th, exterior sheathing；8th, internal model
Plate；9th, box girder web；10th, model calculates deformation and transfinited area；11st, model calculates overstressing area；12nd, bridge pier top view；A、B、
Position of C, D strut lower end on cushion cap；Position of a, b, c, d strut upper end in distribution beam.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, when the lateral dimension of No. zero block is more than the transverse direction of pier top present in prior art
Size, and cantilevered out size it is larger when, then bring potential safety hazard to construction.For across bridge constructions such as road, rivers, not possessing and taking
If the condition of full framing, though the laying of encryption bracket reinforcing bar can reduce danger, No. zero block coagulation can not be thoroughly solved
Soil pours the problem of weight is big.In order to solve technical problem as above, present applicant proposes a kind of wide, No. zero block of squat pier box beam
The bracket and construction method of construction.
In a kind of typical embodiment of the application, there is provided a kind of wide, squat pier case as shown in Figure 1, Figure 2, Figure 3 shows
The bracket and construction method of No. zero block of beam construction, including be arranged on pier top direction across bridge and vertical bridge to position shelf bracket 5,
Distribution beam 6 is placed respectively in the described top of shelf bracket 5；Exterior sheathing 7 is placed in the top of distribution beam 6, the exterior sheathing 7 is used to support
No. zero block has more the part of pier top；Distribution beam top place inner template 8, the inner template 8 be used for constant zero block web and
Flange plate；The strut 2 for supporting distribution beam is respectively mounted in four Angle Positions of the cushion cap 3 at pier bottom.The bracket is used for No. zero
Block pouring construction, No. zero block is laterally wider than pier stud large-size, and it is larger that bracket bears weight.
The distribution beam 6 has vertical bridge to distribution beam and direction across bridge distribution beam, and described vertical bridge is distributed to distribution beam and direction across bridge
Beam layering is alternately placed on bracket.
The preferred tubular element of strut 2, e.g. steel pipe etc.；Such as need larger support force, can in pipe concrete perfusion, to add
Its strong bearing capacity.
In addition, the invention also discloses a kind of construction method, when carrying out No. zero block pouring construction, bracket arrangement is carried out first
Then carry out again after the completion of strut arrangement, arrangement, as depicted in figs. 1 and 2, concrete construction method is section：
Shelf bracket 5 is installed in the surrounding of pier 4, shelf bracket 5 is arranged in pier 4 on bracket built-in fitting；
Distribution beam 6 is placed in the top of shelf bracket 5, the distribution beam 6 has vertical bridge to distribution beam and direction across bridge distribution beam；Dividing
With exterior sheathing 7 is placed on beam 6, the template is used for the part for supporting No. zero block to have more pier top；Installed inside the box beam of No. zero block 1
Inner template 8；The template is used for constant zero block web and flange plate；
Need to ensure that each component is closely fastened in installation process, need to ensure template linearly and box beam casting with box beam contact position
Unanimously, it is impossible to crack and tensioning relaxation cases occur, cause concrete to leak, construction profile unsightly, tie by serious meeting influence
Structure intensity.
The strut 2 for supporting distribution beam, strut 2 and distribution beam 6 are respectively mounted in tetra- positions of A, B, C, D of cushion cap 3
Position difference reference numeral a, b, c, d of contact, the preferred tubular element of strut such as need larger support force, can irrigate mixed in pipe
Solidifying soil, to strengthen its bearing capacity；
The lower end of strut 2, on the built-in fitting of cushion cap 3, upper end is connected with distribution beam 6.
After strut 2 is installed, you can pour the concrete of No. zero block 1.
Further, in the above method, bracket bears template deadweight, bracket deadweight, flange plate weight and part zero
Number block web weight.
Further, in the above method, the size of described cushion cap cross section is more than the size at pier bottom, with eaves outside bracket
The area of the cross section formed is suitable.
Further, in the above method, strut is located on cushion cap on strut built-in fitting.
Further, if cushion cap is smaller in the above method, pedestal can be set to be supported for strut outside cushion cap.
Further, the preferred tubular element of support bar described in the above method, such as needs larger support force, can be filled in pipe
Concrete is noted, to strengthen its bearing capacity.
As can be seen from the above description, the application the above embodiments realize following technique effect：
For wide No. zero block box girder construction, box girder web and flange plate are beyond the external boundary of pier, and its weight is by No. zero
Block bracket undertakes, as shown in figure 4, and near corner only have distribution beam undertake, enter line carrier force analysis check when, No. 10
Easily there is the situation beyond permissible range in the vertical deformation of position and the stress of No. 11 positions, as shown in figure 5, to reduce such effect
Should, tetra- positions of a, b, c, d on bracket are provided with strut support, and the setting of strut not only increases bracket stress checking calculation
Safety coefficient, while also increasing construction safety coefficient, has saved the cost of encryption distribution beam, has played and prevent construction accident
Effect, provide direct economic benefit for unit in charge of construction, the reference of referentiability provided for the construction of No. zero block bracket, is had
There is important social effect.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention, is not described in detail
The part presented with partial enlargement, is prior art, herein without repeating.Therefore, the present invention is not intended to be limited to herein
These shown embodiments, and it is to fit to the most wide scope consistent with feature with principles disclosed herein.
Claims (10)
1. a kind of wide, No. zero block construction of squat pier box beam bracket, it is characterised in that including being arranged on pier top direction across bridge and vertical bridge
To position shelf bracket, place distribution beam respectively above described shelf bracket；Exterior sheathing is placed above distribution beam,
The exterior sheathing is used for the part for supporting No. zero block to have more pier top；Inner template is placed in the top of distribution beam, the inner template is used for solid
Fixed No. zero block web and flange plate；The strut for supporting distribution beam is respectively mounted in four Angle Positions of the cushion cap at pier bottom.
2. wide, No. zero block construction of squat pier box beam bracket as claimed in claim 1, it is characterised in that described distribution beam
Including vertical bridge to distribution beam and direction across bridge distribution beam, described vertical bridge is alternately placed in distribution beam and the layering of direction across bridge distribution beam
On bracket.
3. a kind of wide, No. zero block construction of squat pier box beam bracket construction method, it is characterised in that comprise the following steps：
(1) pier top direction across bridge and vertical bridge to position multiple shelf brackets are installed, put respectively above described shelf bracket
Put distribution beam；
(2) exterior sheathing is placed above distribution beam, the exterior sheathing is used for the part for supporting No. zero block to have more pier top；
(3) inner template is placed in the top of distribution beam, the inner template is used for constant zero block web and flange plate；
(4) it is respectively mounted strut for supporting distribution beam in four Angle Positions of the cushion cap at pier bottom.
4. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that step
(1) shelf bracket is mounted on pier top bracket built-in fitting.
5. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that step
(1) distribution beam in includes vertical bridge to distribution beam and direction across bridge distribution beam, and described vertical bridge is to distribution beam and direction across bridge distribution beam
Layering is alternately placed on bracket.
6. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that in step
Suddenly in (2), (3), bracket bears template deadweight, bracket deadweight, flange plate weight and the block web weight of part zero.
7. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that in step
Suddenly in (4), the size of described cushion cap cross section is more than the size at pier bottom, the area with the cross section formed of eaves outside bracket
Quite.
8. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that in step
Suddenly in (4), strut is located on cushion cap on strut built-in fitting.
9. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that in step
Suddenly (4) if in cushion cap it is smaller, can be set outside cushion cap pedestal for strut support.
10. wide, No. zero block construction of squat pier box beam bracket construction method as claimed in claim 3, it is characterised in that described
The preferred tubular element of support bar, such as need larger support force, can in pipe concrete perfusion, to strengthen its bearing capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380081.6A CN107012796A (en) | 2017-05-25 | 2017-05-25 | A kind of wide, bracket of No. zero block construction of squat pier box beam and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380081.6A CN107012796A (en) | 2017-05-25 | 2017-05-25 | A kind of wide, bracket of No. zero block construction of squat pier box beam and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107012796A true CN107012796A (en) | 2017-08-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710380081.6A Pending CN107012796A (en) | 2017-05-25 | 2017-05-25 | A kind of wide, bracket of No. zero block construction of squat pier box beam and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107012796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356036A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier pier-side bracket and its construction method |
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| CN109356036A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier pier-side bracket and its construction method |
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Application publication date: 20170804 |
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