CN106120563B - Construction method based on Combined movable mould bases cast-in-situ box girder - Google Patents
Construction method based on Combined movable mould bases cast-in-situ box girder Download PDFInfo
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- CN106120563B CN106120563B CN201610551185.4A CN201610551185A CN106120563B CN 106120563 B CN106120563 B CN 106120563B CN 201610551185 A CN201610551185 A CN 201610551185A CN 106120563 B CN106120563 B CN 106120563B
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- jack
- traversing
- bailey beam
- longitudinal
- vertical shift
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000009415 formwork Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 235000015170 shellfish Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 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 present invention relates to a kind of cast-in-situ box girder Combined movable mould bases, mainly include：Corbels support bracket, cross moving track, pulley group platform, longitudinal Bailey beam, horizontal Bailey beam, outer mould holder, traversing platform, traversing jack A, vertical shift jack, traversing jack B；Pulley group platform sets traversing jack A with cross moving track side, and traversing jack A one end is fixed on pulley group platform, and the other end is fixed on cross moving track；Longitudinal Bailey beam bottom longitudinal direction sets vertical shift jack；Vertical shift jack base is fixed on pulley group platform, and the other end is fixed on vertical shift guide rail beam by connector E；Outer mould holder is the symmetrical separate structure in both sides, and both sides end template is bolted on together.Structure of the present invention has convenient disassembly, and efficiency of construction is high, it is not necessary to repeat to remove support and die carrier structure, mobile formwork and girder can automate via, realize the continuous construction of cast-in-situ box girder, with preferable economic technology benefit.
Description
Technical field
The present invention relates to a kind of cast-in-situ box girder Combined movable mould bases, belong to building engineering field, more particularly to one
Plant the construction method based on Combined movable mould bases cast-in-situ box girder.
Background technology
Prestressed concrete beam bridge occupies leading position in China's Short/Medium Span Bridge, and its construction method expires except conventional
Paving Support Method is hole-specifically poured, outside whole opening prefabricated erection, also a large amount of hole-specifically to be poured using mobile formworks, effectively promotes bridge construction
Mechanization process.
Strong, low construction efficiency, mould bases and falsework do not need to repeat to remove traditional cast-in-situ box girder support mould bases adaptability.
To adapt to the different structural system of prestressed concrete beam and construction feature, the Novel movable mould bases differed from one another emerges in large numbers one after another,
Beam-form unified movable mould frame is exactly one kind therein.
The content of the invention
It is an object of the invention to for traditional cast-in-situ box girder support mould bases adaptability not strong, low construction efficiency, mould bases and
The shortcomings of falsework needs to repeat to remove, it is proposed that a kind of cast-in-situ box girder Combined movable mould bases and its construction method, this shows
Pouring box beam Combined movable mould bases includes removable longitudinal Bailey beam, detachable template and mould bases unification mobile formwork, vertical shift
With the Combined movable mould bases such as cross moving track.
In order to realize above-mentioned technical purpose, present invention employs following technical scheme：
Cast-in-situ box girder Combined movable mould bases, it is characterised in that the Combined movable mould bases mainly includes：Corbels support
Bracket, cross moving track, pulley group platform, longitudinal Bailey beam, horizontal Bailey beam, outer mould holder, traversing platform, traversing jack A,
Vertical shift jack and traversing jack B；Set on corbels support bracket and limited block A is set on the outside of cross moving track, cross moving track；It is sliding
Wheel group platform is placed on cross moving track, and longitudinal pulley A is set above pulley group platform；Longitudinal Bailey beam is placed on assembly pulley and put down
On platform, traversing platform track is set in longitudinal Bailey beam；External mold frame bottom sets traversing platform, and outer mould holder is placed on traversing
On platform track；Longitudinal Bailey beam is hinged with horizontal Bailey beam and is fixed together.
Described pulley group platform sets traversing jack A with cross moving track side, and traversing jack A one end passes through connection
Part A is fixed on pulley group platform, and the other end is fixed on cross moving track by connector B.
Described corbels support bracket is fixed on pier stud by built-in fitting and coordinates pier-side bracket pull bar by offside bracket
Support bracket is to being pulled together.
Jack is set between described pulley group platform and longitudinal Bailey beam.
Described longitudinal Bailey beam bottom sets vertical shift guide rail beam.
Described longitudinal Bailey beam bottom longitudinal direction sets vertical shift jack；Vertical shift jack base is fixed on assembly pulley
On platform, the other end is fixed on vertical shift guide rail beam by connector E.
Described traversing mesa base sets traversing jack B, and traversing jack B one end is fixed on horizontal stroke by connector C
Platform is moved, the other end is fixed on traversing platform track by connector D.
Described outer mould holder is the symmetrical separate structure in both sides, and both sides end template is bolted on together.
Support helix top is set at the top of described horizontal Bailey beam, and support helix sets cushion block on top.
Construction method based on Combined movable mould bases cast-in-situ box girder, it is characterised in that comprise the following steps：
Step 1: corbels support bracket is installed：According to design requirement in the pre-buried built-in fitting of pier stud specified location, treat that pier stud is strong
Degree is reached after design requirement, and corbels support bracket is fixed on pier stud by built-in fitting and coordinates pier-side bracket pull bar further
Fixed corbels support bracket；
Step 2: traversing stage+module：Cross moving track is first bolted on corbels support bracket, then by pulley
Group platform is placed on cross moving track, and traversing jack A is installed into place；
Step 3: Bailey beam is installed：Longitudinal Bailey beam and horizontal Bailey beam are assembled on ground in advance, will be vertical by crane
It is hung to Bailey beam on pulley group platform, bottom sets jack and vertical shift jack, treats that the longitudinal Bailey beam in both sides is installed
After in place, horizontal Bailey beam is lifted to specified location and is connected by articulated joint with longitudinal Bailey beam；
Step 4: fixing of the forming frame：Traversing platform track is welded in longitudinal Bailey beam according to design requirement, by pre-production
Good outer mould holder is lifted to traversing platform track, and traversing jack B is controlled again after the traversing jack A of control to specified location
The outer mould holder of both sides is fixed together by bolt to specified location by the inside side of outer mould holder is traversing, controls jack
Make overall structure jacking to specified location and adjust support helix top and make its stress；
Step 5: reinforcing bar cage hoisting and concreting：In the reinforcing bar cage hoisting that advance colligation is molded to template, treat interior
Mould all installs after-pouring concrete and conserved；
Step 6: form removal：After maintenance reaches design requirement, control jack, which shrinks, declines its overall structure, in weight
Make its automatic demoulding in the presence of power, then remove all connecting bolts outside both sides between mould holder, then control traversing jack B
Outer mould holder is set to be moved to specified location.
Step 7: via and next section of box girder construction：Remove articulated joint and coordinate haulage cable to make it vertical with side
Separated to Bailey beam, traction is to the longitudinal Bailey beam of opposite side and fixes temporarily, controls traversing jack A to make pulley group platform traversing
To specified location, then control vertical shift jack make longitudinal Bailey beam vertical shift realize carried out after via, via to specified location it is next
Section box girder construction.
The invention has the characteristics that and beneficial effect：
（1）Template is unified with support, and both sides mould bases can be separated when removing, and the smooth via of mould bases can be achieved.
（2）Shellfish thunder girder is placed on vertical shift platform, by controlling jack to realize shellfish thunder girder vertical shift, it is not necessary to right
Shellfish thunder girder carries out repeating dismounting.
（3）Horizontal Bailey beam removes a part of articulated joint together with longitudinal shellfish thunder main beam pivot before via, coordinate steel
Horizontal Bailey beam is drawn to longitudinal Bailey beam and fixed temporarily by cord, does not influence via to construct.
Brief description of the drawings
Fig. 1 is the profile based on Combined movable mould bases construction of cast-in-situ box-beam state；
Fig. 2 is the profile based on Combined movable mould bases cast-in-situ box girder form removal state；
Fig. 3 is transverse cross-sectional view at the horizontal Bailey beam in middle part；
Fig. 4 is 2-2 sectional views；
Fig. 5 is 1-1 sectional views；
Fig. 6 is state diagram when horizontal Bailey beam is removed；
Fig. 7 is state diagram when longitudinal Bailey beam is traversing；
In figure：1. corbels support bracket, 2. built-in fittings, 3. pier-side bracket pull bars, 4. cross moving tracks, 5. limited block A, 6. slide
Take turns group platform, 7. traversing jack A, 8. connector A, 9. connector B, 10. longitudinal pulley A, 11. longitudinal Bailey beams, 12. vertical shifts
Jack base, 13. jacks, 14. horizontal Bailey beams, 15. outer mould holders, 16. traversing platforms, 17. pulley A, 18. is horizontal
Move platform track, 19. traversing jack B, 20. connector C, 21. connector D, 22. backrests, 23. outboard templates, 24. bed dies
Plate, 25. connecting bolts, 26. baffle plate moulds, 27. guardrails, 28. support helix tops, 29. cushion blocks, 30. articulated joints, 31. internal models,
32. hydraulic pressure support, 33. limited block B, 34. vertical shift guide rail beams, 35. vertical shift jack, 36. connector E, 37. pier studs, 38. casees
Beam, 39. haulage cables.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, following examples are to the present invention
Explanation be not limited to following examples.
Fig. 1 is the profile based on Combined movable mould bases construction of cast-in-situ box-beam state.Combined movable as shown in Figure 1
Mould bases, mainly includes：Corbels support bracket 1, cross moving track 4, pulley group platform 6, longitudinal Bailey beam 11, horizontal Bailey beam 14,
Outer mould holder 15, traversing platform 16, traversing jack A7, vertical shift jack 35, traversing jack B19, baffle plate mould 26 and guardrail
27。
Cross moving track 4 is set on corbels support bracket 1, and the outside of cross moving track 4 sets limited block A5；Pulley group platform 6 is put
Put on cross moving track 4, pulley group platform 6 sets longitudinal pulley A10 above；Longitudinal Bailey beam 11 is placed on pulley group platform 6
On, traversing platform track 18 is set in longitudinal Bailey beam 11；The outer bottom of mould holder 15 sets traversing platform 16, and outer mould holder 15 is put
Put on traversing platform track 18；Longitudinal Bailey beam 11 is hinged with horizontal Bailey beam 14 and is fixed together.Pulley group platform 6
Traversing jack A7 is set sideways with cross moving track 4, traversing jack A7 one end is fixed on pulley group platform by connector A8
6, the other end is fixed on cross moving track 4 by connector B9.
Corbels support bracket 1 is fixed on pier stud 37 by built-in fitting 2 and coordinates pier-side bracket pull bar 3 by offside bracket branch
1 pair of bracketing frame is pulled together.Jack 13 is set between pulley group platform 6 and longitudinal Bailey beam 11.Longitudinal Bailey beam 11
Bottom sets vertical shift guide rail beam 34.
The traversing bottom of platform 16 sets traversing jack B19, and traversing jack B19 one end is fixed on by connector C20
Traversing platform 16, the other end is fixed on traversing platform track 18 by connector D21.
Outer mould holder 15 is the symmetrical separate structure in both sides, and both sides end template 24 is fixed together by connecting bolt 25.
Fig. 2 is the profile based on Combined movable mould bases cast-in-situ box girder form removal state, and control jack 13 shrinks
Decline its overall structure, its automatic demoulding is made under gravity, then remove all companies outside both sides between mould holder 15
Connecting bolt 25, then control traversing jack B19 outer mould holder 15 is moved to specified location.
Fig. 3 is transverse cross-sectional view at the horizontal Bailey beam in middle part, and the horizontal top of Bailey beam 14 sets support helix top 28, support
Cushion block 29 is set on spiral top 28.
Fig. 4 is Fig. 2 2-2 sectional views, and longitudinal bottom longitudinal direction of Bailey beam 11 sets vertical shift jack 35；Vertical shift is very heavy
Push up 35 bases to be fixed on pulley group platform 6, the other end is fixed on vertical shift guide rail beam 34 by connector E36.
Fig. 5 is Fig. 1 1-1 sectional views, and horizontal Bailey beam 14 is connected to one with longitudinal Bailey beam 11 by articulated joint 30
Rise.
The above-mentioned main construction course based on Combined movable mould bases cast-in-situ box girder is as follows：
Step 1: corbels support bracket is installed：According to design requirement in the pre-buried built-in fitting 2 of the specified location of pier stud 37, pier is treated
Post intensity is reached after design requirement, and corbels support bracket 1 is fixed on pier stud 37 by built-in fitting 2 and coordinates pier-side bracket to draw
Bar further fixes corbels support bracket 1；
Step 2: traversing stage+module：Cross moving track 4 is first bolted on corbels support bracket 1, then will be sliding
Wheel group platform 6 is placed on cross moving track 4, and traversing jack A7 is installed into place；
Step 3: Bailey beam is installed：Longitudinal Bailey beam 11 and horizontal Bailey beam 14 are assembled on ground in advance, pass through crane
Longitudinal Bailey beam 11 is hung on pulley group platform 6, bottom sets jack 13 and vertical shift jack 35, treats both sides longitudinal direction
After Bailey beam 11 is installed in place, horizontal Bailey beam 14 is lifted to specified location and connected by articulated joint 30 with longitudinal Bailey beam 11
Connect；
Step 4: fixing of the forming frame：Traversing platform track 18 is welded in longitudinal Bailey beam 11 according to design requirement, will be advance
The outer mould holder 15 made is lifted to traversing platform track 18, and horizontal stroke is controlled again after the traversing jack A7 of control to specified location
Jack B19 is moved outer mould holder 15 is traversing to specified location to inner side, by connecting bolt 25 by the outer mould holder 15 of both sides
Be fixed together, control jack 13 make overall structure jacking to specified location and adjust support helix top 28 make its by
Power；
Step 5: reinforcing bar cage hoisting and concreting：In the reinforcing bar cage hoisting that advance colligation is molded to template, treat interior
Mould 31 all installs after-pouring concrete and conserved；
Step 6: form removal：After maintenance reaches design requirement, control jack 13, which shrinks, to be made under its overall structure
Drop, makes its automatic demoulding under gravity, then removes all connecting bolts 25 outside both sides between mould holder 15, then control
Traversing jack B19 makes outer mould holder 15 be moved to specified location；
Step 7: via and next section of box girder construction：Remove articulated joint 30 and coordinate haulage cable 39 to make itself and one
Side longitudinal direction Bailey beam 11 is separated, and traction is to the longitudinal Bailey beam 11 of opposite side and fixes temporarily, controls traversing jack A7 to make pulley
Group platform 6 is traversing to specified location, then controls vertical shift jack 35 longitudinal vertical shift of Bailey beam 11 is realized via, and via is to specifying
Next section of box girder construction is carried out behind position.
Claims (1)
1. the construction method based on Combined movable mould bases cast-in-situ box girder, it is characterised in that comprise the following steps：
Step 1: corbels support bracket is installed：According to design requirement in pier stud（37）The pre-buried built-in fitting of specified location（2）, treat pier
Post intensity is reached after design requirement, by corbels support bracket（1）Pass through built-in fitting（2）It is fixed on pier stud（37）Go up and coordinate by pier
Bracket pull bar further fixes corbels support bracket（1）；
Step 2: traversing stage+module：First by cross moving track（4）It is bolted on corbels support bracket（1）, then will be sliding
Take turns group platform（6）It is placed on cross moving track（4）On, by traversing jack A（7）Install in place；
Step 3: Bailey beam is installed：Longitudinal Bailey beam（11）With horizontal Bailey beam（14）Assembled in advance on ground, pass through crane
By longitudinal Bailey beam（11）It is hung to pulley group platform（6）On, bottom sets jack（13）With vertical shift jack（35）, treat
Both sides longitudinal direction Bailey beam（11）After installing in place, by horizontal Bailey beam（14）Lifting to specified location passes through articulated joint（30）With
Longitudinal Bailey beam（11）Connection；
Step 4: fixing of the forming frame：According to design requirement in longitudinal Bailey beam（11）The upper traversing platform track of welding（18）, will be advance
The outer mould holder made（15）Lift to traversing platform track（18）On, control traversing jack A（7）After to specified location again
Control traversing jack B（19）By outer mould holder（15）It is traversing to specified location to inner side, pass through connecting bolt（25）By both sides
Outer mould holder（15）It is fixed together, controls jack（13）Make overall structure jacking to specified location and adjust support
Spiral top（28）Make its stress；
Step 5: reinforcing bar cage hoisting and concreting：In the reinforcing bar cage hoisting that advance colligation is molded to template, internal model is treated
（31）All install after-pouring concrete and conserve；
Step 6: form removal：After maintenance reaches design requirement, jack is controlled（13）Contraction declines its overall structure,
Make its automatic demoulding under gravity, then remove mould holder outside both sides（15）Between all connecting bolts（25）, then control
Making traversing jack B (19) makes outer mould holder（15）It is moved to specified location；
Step 7: via and next section of box girder construction：Remove articulated joint（30）And coordinate haulage cable（39）Make itself and one
Side longitudinal direction Bailey beam（11）Separation, traction to the longitudinal Bailey beam of opposite side（11）And fix temporarily, control traversing jack A（7）
Make pulley group platform（6）It is traversing to specified location, then control vertical shift jack（35）Make longitudinal Bailey beam（11）Vertical shift was realized
Next section of box girder construction is carried out after hole, via to specified location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610551185.4A CN106120563B (en) | 2016-07-14 | 2016-07-14 | Construction method based on Combined movable mould bases cast-in-situ box girder |
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|---|---|---|---|
| CN201610551185.4A CN106120563B (en) | 2016-07-14 | 2016-07-14 | Construction method based on Combined movable mould bases cast-in-situ box girder |
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| CN106120563A CN106120563A (en) | 2016-11-16 |
| CN106120563B true CN106120563B (en) | 2017-09-08 |
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| CN106120563A (en) | 2016-11-16 |
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Address after: No. 159, Jinghua Avenue, Dezhou Economic and Technological Development Zone, Shandong Province Patentee after: Deda Transportation Construction and Development Group Co.,Ltd. Address before: No. 159, Jinghua Avenue, Dezhou Economic and Technological Development Zone, Shandong Province Patentee before: DEZHOU ROAD ENGINEERING Corp. |
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