CN108755421A - Capping beam construction device and construction method - Google Patents
Capping beam construction device and construction method Download PDFInfo
- Publication number
- CN108755421A CN108755421A CN201810539178.1A CN201810539178A CN108755421A CN 108755421 A CN108755421 A CN 108755421A CN 201810539178 A CN201810539178 A CN 201810539178A CN 108755421 A CN108755421 A CN 108755421A
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- CN
- China
- Prior art keywords
- sliding
- bent cap
- bed die
- built
- bracket
- Prior art date
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Abstract
The present invention provides a kind of capping beam construction device and construction methods, wherein construction method includes the following steps：A：In pier stud work progress, when pier stud sliding formwork it is sliding to a certain height when, install built-in fitting；B：After the completion of pier stud construction, the mounting bracket on the built-in fitting；C：It removes sliding formwork lifting system and sliding-mode platform therein is installed on above the bracket；D：Stupefied wood is installed above the sliding-mode platform；E：Installation bed die and chamfering formwork above the stupefied wood；F：The framework of steel reinforcement of bent cap is installed above the bed die；G：Side form is installed；H：Pour bent cap concrete.Capping beam construction device provided by the invention and construction method, the sliding-mode platform in constructing by using pier stud set up the template of bent cap, without setting up full framing, realize the construction of bent cap.Construction speed is accelerated, the duration is shortened, reduces security risk.
Description
Technical field
The present invention relates to technical field of bridge construction, especially a kind of capping beam construction device and construction method.
Background technology
Bent cap refers to the load for bearing, distribution and transmission superstructure, the crossbeam being arranged at the top of pile bent pier.Again
Claim cap.Main function is supporting bridge superstructure, and whole load is passed to substructure.With highway communication cause
Development, mountainous area highway is more and more, and the ratio that bridge tunnel accounts for highway is increasing, because topography is precipitous, relative fall compared with
Greatly, there are tens meters of high piers in succession towards developing across, cantilever, the directions Gao Dun greatly in Bridges in Mountainous Areas, even higher.
The construction method that bent cap mainly uses at present is sets up raft support method.This method has the following disadvantages：It sets up
Period is longer；Labor intensive and steel pipe week material；In Urban Bridge construction, traffic above-ground is limited；For the field that geological conditions is poor
Floor-engaging frame basement process is of high cost；Site condition is difficult to meet when setting up holder.
Invention content
The technical problem to be solved in the present invention is to provide a kind of capping beam construction device and construction methods, without setting up full hall branch
Frame realizes the construction of bent cap.
The present invention provides a kind of construction method of bent cap, include the following steps：
A：In pier stud work progress, when pier stud sliding formwork it is sliding to a certain height when, install built-in fitting；
B：After the completion of pier stud construction, the mounting bracket on the built-in fitting；
C：It removes sliding formwork lifting system and sliding-mode platform therein is installed on above the bracket；
D：Stupefied wood is installed above the sliding-mode platform；
E：Installation bed die and chamfering formwork above the stupefied wood；
F：The framework of steel reinforcement of bent cap is installed above the bed die；
G：Side form is installed；
H：Pour bent cap concrete.
Further, the step C specifically comprises the following steps：
C1:Remove the connection of the sliding-mode platform and hoisting frame;
C2:The sliding-mode platform is placed into above the bracket;
C3:The sliding-mode platform is connect with the bracket.
Further, in the step D, the arrangement spacing of the stupefied wood is 0.3 ~ 0.7m.
Further, the step E specifically comprises the following steps：
E1：The stupefied wood draws the design center line of bent cap after installation is complete；
E2：It is laid with the bed die according to the design centre line；
E3：Setting-out go out bent cap direction across bridge and along bridge to axis, and be identified on the bed die；
E4：The sideline of bent cap is made according to the axis；
E5：Pass line adjustment is carried out to bed die, the absolute altitude of bed die and the gradient is made to be consistent with design;
E6:The chamfering formwork is installed at the bed die both ends, the chamfering formwork is supported using cantilever support, the cantilever
The angle of the wedge shape of support is identical as bent cap end-beveling.
Further, in the step H, bent cap concreting in lifts molding, lift height is 25 ~ 35cm.
Further, further include portion I after the step I：Remove the side form, the bed die, the chamfering formwork and
The sliding-mode platform.
The present invention also provides a kind of capping beam construction devices, including：
Multiple built-in fittings, are fixed on pier stud；
With the bracket of the built-in fitting equivalent, corresponded with the built-in fitting, and be fixed on the built-in fitting comprising
One mounting surface being positioned above, the mounting surface is horizontal, also, the mounting surface of multiple brackets is located at same level
It is interior；
Sliding-mode platform is installed on above the bracket, and is fixedly connected with the bracket；
Multiple stupefied wood are layed in above the sliding-mode platform；
Bed die, chamfering formwork and side form are installed on the stupefied wood top, for being molded bent cap.
Further, further include cantilever support, be used to support the chamfering formwork.
Further, the built-in fitting includes steel plate and an at least connecting rod, and the connecting rod is perpendicular to the steel plate
And be welded and fixed with it, the free end of the connecting rod is provided with bending part, steel of the bending part grab in the pier stud
On muscle.
Further, the multiple equidistant arrangement of stupefied wood, the arrangement spacing of the stupefied wood is 0.3 ~ 0.7m.
Capping beam construction device provided by the invention and construction method, the sliding-mode platform in constructing by using pier stud,
The template for setting up bent cap realizes the construction of bent cap without setting up full framing.Construction speed is accelerated, work is shortened
Phase reduces security risk.
Description of the drawings
Fig. 1 is the flow chart of construction method of bent cap of the present invention；
Fig. 2 is the front view of capping beam construction device of the present invention；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the front view of built-in fitting and bracket in the present invention.
In figure, 1. built-in fittings, 101. steel plates, 102. connecting rods, 102a. bending parts, 2. brackets, 3. sliding-mode platforms,
4. stupefied wood, 5. split bolts, 6. cantilever supports, 7. bed dies, 8. chamfering formworks, 9. side forms, 10. pier studs.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
A kind of capping beam construction device, as shown in Fig. 1 ~ 4, including：
Multiple built-in fittings 1 are fixed on pier stud 10；
It with the bracket 2 of 1 equivalent of built-in fitting, is corresponded with built-in fitting 1, and be fixed on built-in fitting 1 comprising one is located at it
The mounting surface of top, mounting surface is horizontal, also, the mounting surface of multiple brackets 2 is located in the same horizontal plane；
Sliding-mode platform 3 is installed on 2 top of bracket, and is fixedly connected with bracket 2；
Multiple stupefied wooden 4, it is layed in 3 top of sliding-mode platform；
Bed die 7, chamfering formwork 8 and side form 9 are installed on stupefied wooden 4 top, for being molded bent cap.
Wherein, chamfering formwork 8 is supported using cantilever support 6.
Specifically, built-in fitting 1 include steel plate 101 and an at least connecting rod 102, connecting rod 102 perpendicular to steel plate 101 simultaneously
It is welded and fixed with it, the free end of connecting rod 102 is provided with bending part 102a, reinforcing bar of 102 grab of bending part in pier stud 10
On.
A kind of construction method of bent cap includes the following steps as shown in Fig. 1 ~ 4：
A：In 10 work progress of pier stud, when 10 sliding formwork of pier stud it is sliding to a certain height when, install built-in fitting 1；
When 10 sliding formwork of pier stud it is sliding to a certain height when, reserve 60cm or so, stop concreting, proceed by built-in fitting
1 construction, 1 fixed form of built-in fitting are：Steel plate 101 is embedded on the inside of hollow pier, pre-buried six blocks of steel plates 101 in a hollow pier,
Both sides are symmetrically pre-buried, steel plate 101 size 50*50cm, thickness 3cm;The bending part 102a hooks of connecting rod 102 are in pier shaft main reinforcement
And be welded and fixed, the other end is welded and fixed with steel plate 101.Connecting rod 102 can be the reinforcing bar of diameter 25mm, each steel plate
At least one connecting rod 102 is set on 101.101 height of steel plate is controlled with triangulated height when pre-buried, is gone out with instrument setting-out
Pre-buried point, marks line, the steel plate 101 processed is placed in internal model plane, connecting rod 102 is welded with pier shaft main reinforcement
It connects, it is levelling that fixation procedure with horizon rule carries out top surface, and spacing is controlled with steel ruler, fixed to complete casting concrete.
B：After the completion of pier stud construction, the mounting bracket 2 on built-in fitting 1；
Specifically, when sliding formwork slide to 10 top mark of pier stud it is high when, stop sliding formwork, 1 surface laitance of built-in fitting is cleaned out, with level
Ruler controls 2 top surface of bracket level, distance between measuring each bracket 2 with steel ruler, with marking pen or the line of ink marker on built-in fitting 1
It portrays and marks, bracket 2 carries out spot welding with built-in fitting 1 and connect, and spot welding connection is completed carrying out full weld reinforcing.Each built-in fitting 1
1 bracket 2 of upper welding, 2 shape of bracket can be the right angled triangle of length of side 50cm, wherein a right-angle side is used for and built-in fitting 1
It is fixedly connected, another right-angle side is for installing sliding-mode platform 3.
C：It removes sliding formwork lifting system and sliding-mode platform 3 therein is installed on 2 top of the bracket；
Specifically, sliding formwork lifting system is removed, sundries on sliding-mode platform 3 is cleared up, removes jack and F type hoisting frames, it will
Sliding-mode platform 3 is placed on bracket 2, and sliding-mode platform 3 is connect with bracket 2.
D：Stupefied wooden 4 are installed above sliding-mode platform 3；
Specifically, stupefied wooden 43 top of sliding-mode platform and bent cap both sides overhanging portion, stupefied wooden 4 arrangement are equably laid on
Spacing is 0.3 ~ 0.7m, it is preferable that spacing 0.5m.Length wants to meet outer job platform and sets up width to be wanted not less than 0.8m
It asks.Cantilever support 6 is placed on stupefied wooden 4, in order to the installation of chamfering formwork 8.
E：Bed die 7 and chamfering formwork 8 are installed above stupefied wooden 4；
Specifically, after the completion of stupefied wooden 4 laying, the design centre point of pier stud 10 and each control point height is measured, is pulled out with cord
The design center line of bent cap is laid with bed die 7 according to design centre line on channel steel；Setting-out go out bent cap direction across bridge and along bridge to axis
Line, and mark is made on bed die 7, the sideline of bent cap is made according to the center line that setting-out goes out, and Pass line adjustment is carried out to bed die 7,
The absolute altitude and the gradient for making bed die 7 are consistent with design.The chamfering formwork 8 at both ends uses the cantilever support 6 of sizing as support, wedge-shaped
Angle is identical as bent cap end-beveling.The installation that seeks template is smoother, and adjacent two plates height difference is not more than 2mm, the surfacing of template
Degree is not more than 5mm, and installation front side face paste double faced adhesive tape prevents concrete casting process spillage, bed die 7 and pier shaft junction at form joint
Packing reality is filled in gap, prevents spillage pollution pier stud 10.
F：The framework of steel reinforcement of bent cap is installed above bed die 7；
Specifically, bent cap framework of steel reinforcement makes between steel bar meter and finishes, and construction location is transported to automobile, is carried out vertically with crane
Transport.It is installed according to drawing requirement.Reinforcement welding uses single-selded lap joint or two-sided overlap welding, and weld seam is full, without welding slag,
Must not weld main reinforcement of burning.
G：Side form 9 is installed；
Specifically, side form 9 is cleaned and is scraped using sizing punching block by side form 9, brush releasing agent, with truck crane that side form 9 is in place,
It is reinforced using split bolt 5,1 m of horizontal spacing is laid.
H：Pour bent cap concrete.
Specifically, before pouring concrete, template, reinforcing bar are checked, can be poured after meeting design specification requirement.It pours
Bent cap concrete is built, is not less than 1.5 minutes in strict accordance with match ratio, guarantee mixing time in casting process, concrete must connect
Continuous to pour, break time must not exceed 30 minutes.Concrete concentrates mix, concrete tank to transport to scene using mixing station,
Concrete conveyance is pumped into mould or crane or hoisting frame is equipped with suspension bucket and enters mould, and vibrating head vibrates, and successively pouring molding, layering are thick for layering
Degree is preferably 25 ~ 35cm, preferably 30cm.
I：Remove side form 9, bed die 7, chamfering formwork 8 and sliding-mode platform 3.
Specifically, the sequence and method of form removal：First tear non-bearing template open, after tear template and the support of load-bearing open；It generally should be first
Loose split bolt 5 is removed in merogenesis fragment；First tear non-bearing part open, after tear supporting part open.It is supported in dismounting small steel templates
When roof plate template, forbid after all removing pillar, disposable pull is removed.Movable template is torn open, it is necessary to which one-time continuous is torn open
Except complete.Sliding-mode platform dismounting sequence：Slip form platform is cleared up, and sliding formwork comes to nothing, and removes interior outer platform and hanging basket frame plate, and tower crane is hung
It unloads to ground marker space, divides sliding form apparatus, material consolidation is stacked.
Protection scope of the present invention is without being limited thereto.Those skilled in the art on the basis of the present invention made by it is equivalent
It substitutes or converts, within protection scope of the present invention.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of construction method of bent cap, which is characterized in that include the following steps：
A：In pier stud work progress, when pier stud sliding formwork it is sliding to a certain height when, install built-in fitting；
B：After the completion of pier stud construction, the mounting bracket on the built-in fitting；
C：It removes sliding formwork lifting system and sliding-mode platform therein is installed on above the bracket；
D：Stupefied wood is installed above the sliding-mode platform；
E：Installation bed die and chamfering formwork above the stupefied wood；
F：The framework of steel reinforcement of bent cap is installed above the bed die；
G：Side form is installed；
H：Pour bent cap concrete.
2. construction method of bent cap as described in claim 1, which is characterized in that the step C specifically comprises the following steps：
C1:Remove the connection of the sliding-mode platform and hoisting frame;
C2:The sliding-mode platform is placed into above the bracket;
C3:The sliding-mode platform is connect with the bracket.
3. construction method of bent cap as described in claim 1, which is characterized in that in the step D, the arrangement spacing of the stupefied wood
For 0.3 ~ 0.7m.
4. construction method of bent cap as described in claim 1, which is characterized in that the step E specifically comprises the following steps：
E1：The stupefied wood draws the design center line of bent cap after installation is complete；
E2：It is laid with the bed die according to the design centre line；
E3：Setting-out go out bent cap direction across bridge and along bridge to axis, and be identified on the bed die；
E4：The sideline of bent cap is made according to the axis；
E5：Pass line adjustment is carried out to bed die, the absolute altitude of bed die and the gradient is made to be consistent with design;
E6:The chamfering formwork is installed at the bed die both ends, the chamfering formwork is supported using cantilever support, the cantilever
The angle of the wedge shape of support is identical as bent cap end-beveling.
5. construction method of bent cap as described in claim 1, which is characterized in that in the step H, bent cap concreting in lifts
Molding, lift height are 25 ~ 35cm.
6. construction method of bent cap as described in claim 1, which is characterized in that further include portion I after the step I：Remove institute
State side form, the bed die, the chamfering formwork and the sliding-mode platform.
7. a kind of capping beam construction device, which is characterized in that including：
Multiple built-in fittings, are fixed on pier stud；
With the bracket of the built-in fitting equivalent, corresponded with the built-in fitting, and be fixed on the built-in fitting comprising
One mounting surface being positioned above, the mounting surface is horizontal, also, the mounting surface of multiple brackets is located at same level
It is interior；
Sliding-mode platform is installed on above the bracket, and is fixedly connected with the bracket；
Multiple stupefied wood are layed in above the sliding-mode platform；
Bed die, chamfering formwork and side form are installed on the stupefied wood top, for being molded bent cap.
8. capping beam construction device as claimed in claim 7, which is characterized in that further include cantilever support, be used to support it is described fall
Angle formwork.
9. capping beam construction device as claimed in claim 7, which is characterized in that the built-in fitting includes steel plate and an at least company
Extension bar, the connecting rod are welded and fixed perpendicular to the steel plate and with it, and the free end of the connecting rod is provided with bending part, institute
Bending part grab is stated on the reinforcing bar in the pier stud.
10. capping beam construction device as claimed in claim 7, which is characterized in that the multiple stupefied equidistant arrangement of wood, the stupefied wood
Arrangement spacing be 0.3 ~ 0.7m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539178.1A CN108755421A (en) | 2018-05-30 | 2018-05-30 | Capping beam construction device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539178.1A CN108755421A (en) | 2018-05-30 | 2018-05-30 | Capping beam construction device and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108755421A true CN108755421A (en) | 2018-11-06 |
Family
ID=64004107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810539178.1A Pending CN108755421A (en) | 2018-05-30 | 2018-05-30 | Capping beam construction device and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778679A (en) * | 2019-02-26 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | A kind of overhead station structure suitable for straddle-type monorail |
| CN110552502A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | Construction method of C-shaped stock yard intermediate retaining wall overhanging platform |
| CN110983981A (en) * | 2019-12-18 | 2020-04-10 | 中交第一航务工程局有限公司 | Supporting method for assembled building template |
| CN113417218A (en) * | 2021-07-29 | 2021-09-21 | 中建八局第四建设有限公司 | Prestressed concrete half-inverted T-shaped invisible bent cap steel-wood combined template and construction method |
| CN114960461A (en) * | 2022-07-18 | 2022-08-30 | 中交一公局第二工程有限公司 | Integral angle-adjustable bent cap die block bearing structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778679A (en) * | 2019-02-26 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | A kind of overhead station structure suitable for straddle-type monorail |
| CN110552502A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | Construction method of C-shaped stock yard intermediate retaining wall overhanging platform |
| CN110983981A (en) * | 2019-12-18 | 2020-04-10 | 中交第一航务工程局有限公司 | Supporting method for assembled building template |
| CN113417218A (en) * | 2021-07-29 | 2021-09-21 | 中建八局第四建设有限公司 | Prestressed concrete half-inverted T-shaped invisible bent cap steel-wood combined template and construction method |
| CN114960461A (en) * | 2022-07-18 | 2022-08-30 | 中交一公局第二工程有限公司 | Integral angle-adjustable bent cap die block bearing structure |
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