CN106120563A - Cast-in-situ box girder Combined movable mould bases and construction method thereof - Google Patents
Cast-in-situ box girder Combined movable mould bases and construction method thereof Download PDFInfo
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- CN106120563A CN106120563A CN201610551185.4A CN201610551185A CN106120563A CN 106120563 A CN106120563 A CN 106120563A CN 201610551185 A CN201610551185 A CN 201610551185A CN 106120563 A CN106120563 A CN 106120563A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 235000015170 shellfish Nutrition 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 238000009415 formwork Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram 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
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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, specifically include that bracket Support bracket, cross moving track, assembly pulley platform, longitudinal Bailey beam, horizontal Bailey beam, outer mould holder, traversing platform, traversing jack A, vertical shift jack, traversing jack B；Assembly pulley platform and cross moving track side arrange traversing jack A, and traversing jack A one end is fixed on assembly pulley platform, and the other end is fixed on cross moving track；Bottom longitudinal Bailey beam, longitudinal direction arranges vertical shift jack；Vertical shift jack base is fixed on assembly pulley platform, and the other end is fixed on vertical shift guide rail beam by connector E；Outer mould holder is lateral symmetry separate type structure, and both sides end template is bolted on together.The structure that the present invention relates to has easy accessibility, and efficiency of construction is high, it is not necessary to repeat to remove support and die carrier structure, mobile formwork and girder can be with automatization's vias, it is achieved the continuous construction of cast-in-situ box girder, has 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, particularly relate to one
Plant 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 hole-specifically pours, outside whole opening prefabricated erection, the most a large amount of use mobile formworks hole-specifically to pour, and promotes bridge construction effectively
Mechanization process.
Tradition cast-in-situ box girder supports that mould bases adaptability is strong, efficiency of construction is low, mould bases and falsework need to repeat to remove.
For adapting to the different structural system of prestressed concrete beam and structural 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 therein.
Summary of the invention
Present invention aims to tradition cast-in-situ box girder support that mould bases adaptability is strong, efficiency of construction is low, mould bases and
Falsework needs to repeat the shortcomings such as dismounting, it is proposed that a kind of cast-in-situ box girder Combined movable mould bases and construction method thereof, and this is existing
Water box beam Combined movable mould bases and include that removable longitudinal Bailey beam, detachable template unify mobile formwork, vertical shift with mould bases
With Combined movable mould bases such as cross moving tracks.
In order to realize above-mentioned technical purpose, present invention employs techniques below scheme:
Cast-in-situ box girder Combined movable mould bases, it is characterised in that described Combined movable mould bases specifically includes that bracket supporting bracket
Frame, cross moving track, assembly pulley platform, longitudinal Bailey beam, horizontal Bailey beam, outer mould holder, traversing platform, traversing jack A, vertical
Move jack and traversing jack B；Cross moving track is set on bracket Support bracket, limited block A is set outside cross moving track；Pulley
Group platform is placed on cross moving track, and assembly pulley platform is arranged above with longitudinal pulley A；Longitudinal Bailey beam is placed on assembly pulley platform
On, longitudinal Bailey beam arranges traversing platform track；External mold frame bottom arranges traversing platform, and outer mould holder is placed on traversing flat
On platform track；It is longitudinal that Bailey beam is hinged with horizontal Bailey beam is fixed together.
Described assembly pulley platform and cross moving track side arrange traversing jack A, and traversing jack A one end is by connecting
Part A is fixed on assembly pulley platform, and the other end is fixed on cross moving track by connector B.
Described bracket 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.
Between described assembly pulley platform and longitudinal Bailey beam, jack is set.
Bottom described longitudinal Bailey beam, vertical shift guide rail beam is set.
Bottom described longitudinal Bailey beam, longitudinal direction arranges 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 arranges traversing jack B, and traversing jack B one end is fixed on horizontal stroke by connector C
Moving platform, the other end is fixed on traversing platform track by connector D.
Described outer mould holder is lateral symmetry separate type structure, and both sides end template is bolted on together.
Described horizontal Bailey beam top arranges support helix top, and support helix arranges 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 one, bracket Support bracket are installed: require to specify the pre-buried built-in fitting in position at pier stud according to design, treat that pier stud intensity reaches
After requiring to design, bracket Support bracket is fixed on pier stud by built-in fitting and coordinates pier-side bracket pull bar to fix further
Bracket Support bracket；
Step 2, traversing stage+module: first cross moving track is bolted on bracket Support bracket, then by platform pulley
Group is placed on cross moving track, installs in place by traversing jack A；
Step 3, Bailey beam are installed: longitudinal Bailey beam and horizontal Bailey beam assemble on ground, in advance by crane by longitudinal direction shellfish
Lei Liang winches on assembly pulley platform, and bottom arranges jack and vertical shift jack, treats that both sides longitudinal direction Bailey beam is installed in place
After, by the lifting of horizontal Bailey beam to specifying position to be connected with longitudinal Bailey beam by articulated joint；
Step 4, fixing of the forming frame: require to weld traversing platform track, by make in advance in longitudinal Bailey beam according to design
The lifting of outer mould holder on traversing platform track, control traversing jack A postpone to specific bit control traversing jack B again will outward
Mould holder is traversing to specifying position to inner side, is fixed together by the outer mould holder of both sides by bolt, controls jack and makes whole
Body structure jacking is to specifying position and regulating support helix top and make its stress；
Step 5, reinforcing bar cage hoisting and concreting: by the reinforcing bar cage hoisting of colligation molding in advance to template, treat that interior mould is complete
Portion installs after-pouring concrete maintenance；
Step 6, form removal: after maintenance reaches design requirement, control jack contraction and make its overall structure decline, at gravity
Make its automatic demoulding under effect, then remove all connecting bolts between mould holder outside both sides, then control outside traversing jack B makes
Mould holder moves to specifying position.
Step 7, via and next section of box girder construction: remove articulated joint and coordinate haulage cable to make it indulge with side
Separating to Bailey beam, traction to opposite side longitudinal direction Bailey beam and is fixed temporarily, controls traversing jack A and makes assembly pulley platform traversing
To specifying position, then controlling vertical shift jack and make longitudinal Bailey beam vertical shift realize via, via to specific bit postpones and carries out next
Section box girder construction.
The invention have the characteristics that and beneficial effect:
(1) template is unified with support, and both sides mould bases can separate when removing, and can realize the smooth via of mould bases.
(2) shellfish thunder girder is placed on vertical shift platform, can realize shellfish thunder girder vertical shift by controlling jack, it is not necessary to right
Shellfish thunder girder carries out repeating to remove.
(3) laterally Bailey beam, together with longitudinal shellfish thunder main beam pivot, removes a part of articulated joint before via, coordinates steel
Cord, by horizontal Bailey beam traction to longitudinal Bailey beam and fixing temporarily, does not affect via construction.
Accompanying drawing explanation
Fig. 1 is profile based on Combined movable mould bases construction of cast-in-situ box-beam state；
Fig. 2 is profile based on Combined movable mould bases cast-in-situ box girder form removal state；
Fig. 3 is transverse cross-sectional view at the laterally Bailey beam of middle part；
Fig. 4 is 2-2 sectional view；
Fig. 5 is 1-1 sectional view；
State diagram when Fig. 6 is the dismounting of horizontal Bailey beam；
Fig. 7 be longitudinal Bailey beam traversing time state diagram；
In figure: 1. bracket Support bracket, 2. built-in fitting, 3. pier-side bracket pull bar, 4. cross moving track, 5. limited block A, 6. assembly pulley
Platform, the most traversing jack A, 8. connector A, 9. connector B, 10. pulley A, 11. longitudinal Bailey beams, at the bottom of 12. vertical shift jack
Seat, 13. jack, 14. horizontal Bailey beams, 15. outer mould holders, 16. traversing platforms, 17. pulley A, 18. traversing platform tracks,
19. traversing jack B, 20. connector C, 21. connector D, 22. backrests, 23. outboard templates, 24. end templates, 25. bolts,
26. baffle plate moulds, 27. guardrails, 28. support helix tops, 29. cushion blocks, 30. articulated joints, mould in 31., 32. hydraulic pressure supports, 33. limits
Position block B, 34. vertical shift guide rail beams, 35. vertical shift jack, 36. connector E, 37. pier studs, 38. box beams, 39. haulage cables.
Detailed description of the invention
Being described in further detail the present invention below in conjunction with the accompanying drawings and by embodiment, following example are to the present invention
Explanation be not limited to following example.
Fig. 1 is profile based on Combined movable mould bases construction of cast-in-situ box-beam state.Combined movable as shown in Figure 1
Mould bases, specifically include that bracket Support bracket 1, cross moving track 4, assembly pulley 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 bracket Support bracket 1, limited block A5 is set outside cross moving track 4；Assembly pulley platform 6 is put
Putting on cross moving track 4, assembly pulley platform 6 is arranged above with longitudinal pulley A10；Longitudinal Bailey beam 11 is placed on assembly pulley platform 6
On, longitudinal Bailey beam 11 arranges traversing platform track 18；Arranging traversing platform 16 bottom outer mould holder 15, outer mould holder 15 is put
Put on traversing platform track 18；It is longitudinal that Bailey beam 11 is hinged with horizontal Bailey beam 14 is fixed together.Assembly pulley platform 6
Arranging traversing jack A7 with cross moving track 4 side, traversing jack A7 one end is fixed on assembly pulley platform by connector A8
6, the other end is fixed on cross moving track 4 by connector B9.
Bracket Support bracket 1 is fixed on pier stud 37 by built-in fitting 2 and is coordinated pier-side bracket pull bar 3 to be propped up by offside bracket
Bracketing frame 1 is to being pulled together.Between assembly pulley platform 6 and longitudinal Bailey beam 11, jack 13 is set.Bottom longitudinal Bailey beam 11
Vertical shift guide rail beam 34 is set.
Arranging traversing jack B19 bottom traversing platform 16, 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 lateral symmetry separate type structure, and both sides end template 24 is fixed together by bolt 25.
Fig. 2 is profile based on Combined movable mould bases cast-in-situ box girder form removal state, controls jack 13 contraction and makes it
Overall structure declines, and makes its automatic demoulding under gravity, then removes all connection spiral shells between mould holder 15 outside both sides
Bolt 25, then control traversing jack B19 make outer mould holder 15 move to specify position.
Fig. 3 is transverse cross-sectional view at the laterally Bailey beam of middle part, and horizontal Bailey beam 14 top arranges support helix top 28, supports
Cushion block 29 is set on spiral top 28.
Fig. 4 is the 2-2 sectional view of Fig. 2, and bottom longitudinal Bailey beam 11, longitudinal direction arranges vertical shift jack 35；Vertical shift is very heavy
Pushing up 35 bases to be fixed on assembly pulley platform 6, the other end is fixed on vertical shift guide rail beam 34 by connector E36.
Fig. 5 is the 1-1 sectional view of Fig. 1, and horizontal Bailey beam 14 is connected to one with longitudinal Bailey beam 11 by articulated joint 30
Rise.
Above-mentioned main construction course based on Combined movable mould bases cast-in-situ box girder is as follows:
Step one, bracket Support bracket are installed: require to specify the pre-buried built-in fitting in position 2 at pier stud 37 according to design, treat that pier stud is strong
After degree reaches design requirement, bracket Support bracket 1 is fixed on pier stud 37 by built-in fitting 2 and is coordinated pier-side bracket pull bar to enter
One step fixes bracket Support bracket 1；
Step 2, traversing stage+module: cross moving track 4 is first bolted on bracket Support bracket 1 are then sliding by platform
Wheels 6 are placed on cross moving track 4, install in place by traversing jack A7；
Step 3, Bailey beam are installed: longitudinal Bailey beam 11 and horizontal Bailey beam 14 assemble on ground in advance, will be vertical by crane
Winching on assembly pulley platform 6 to Bailey beam 11, bottom arranges jack 13 and vertical shift jack 35, treats both sides longitudinal direction shellfish thunder
Beam 11 install in place after, horizontal Bailey beam 14 is lifted to specify position by articulated joint 30 with longitudinal direction Bailey beam 11 be connected；
Step 4, fixing of the forming frame: require to weld traversing platform track 18 in longitudinal Bailey beam 11 according to design, will make in advance
Good outer mould holder 15 lifting on traversing platform track 18, controls traversing jack A7 and postpones to specific bit and control traversing thousand again
B19 is traversing to specifying position to inner side by outer mould holder 15 on jin top, by bolt 25, the outer mould holder 15 of both sides is fixed on one
Rise, control jack 13 and make overall structure jacking to specifying position and regulating support helix top 28 and make its stress；
Step 5, reinforcing bar cage hoisting and concreting: by the reinforcing bar cage hoisting of colligation molding in advance to template, treat interior mould 31
All install after-pouring concrete maintenance；
Step 6, form removal: after maintenance reaches design requirement, control jack 13 contraction and make its overall structure decline, at gravity
Effect under make its automatic demoulding, then remove all connecting bolts 25 between mould holder 15 outside both sides, then control traversing very heavy
Top B19 makes outer mould holder 15 move to specifying position；
Step 7, via and next section of box girder construction: remove articulated joint 30 and coordinate haulage cable 39 to make it indulge with side
Separating to Bailey beam 11, traction to opposite side longitudinal direction Bailey beam 11 and is fixed temporarily, controls traversing jack A7 and makes assembly pulley put down
Platform 6 is traversing to specifying position, then controls vertical shift jack 35 and make longitudinal Bailey beam 11 vertical shift realize via, and via is to specifying position
After carry out next section of box girder construction.
Claims (10)
1. cast-in-situ box girder Combined movable mould bases, it is characterised in that described Combined movable mould bases specifically includes that bracket supporting bracket
Frame (1), cross moving track (4), assembly pulley platform (6), longitudinal Bailey beam (11), horizontal Bailey beam (14), outer mould holder (15), horizontal stroke
Move platform (16), traversing jack A(7), vertical shift jack (35) and traversing jack B(19)；Bracket Support bracket sets on (1)
Putting cross moving track (4), cross moving track (4) outside arranges limited block A(5)；Assembly pulley platform (6) is placed on cross moving track (4),
Assembly pulley platform (6) is arranged above with longitudinal pulley A(10)；Longitudinal Bailey beam (11) is placed on assembly pulley platform (6), longitudinal shellfish
Traversing platform track (18) is set on Lei Liang (11)；Outer mould holder (15) bottom arranges traversing platform (16), outer mould holder (15)
It is placed on traversing platform track (18)；Longitudinal Bailey beam (11) is hinged with horizontal Bailey beam (14) to be fixed together.
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described assembly pulley platform
(6) traversing jack A(7 is set with cross moving track (4) side), traversing jack A(7) one end is by connector A(8) be fixed on
Assembly pulley platform (6), the other end passes through connector B(9) it is fixed on cross moving track (4).
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described bracket Support bracket
(1) being fixed on pier stud (37) by built-in fitting (2) above and coordinates pier-side bracket pull bar (3) by right for offside bracket Support bracket (1)
It is pulled together.
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described assembly pulley platform
(6) and between longitudinal Bailey beam (11), jack (13) is set.
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described longitudinal Bailey beam
(11) bottom arranges vertical shift guide rail beam (34).
Cast-in-situ box girder Combined movable mould bases the most according to claim 4, it is characterised in that described longitudinal Bailey beam
(11) bottom longitudinal direction arranges vertical shift jack (35)；Vertical shift jack (35) base is fixed on assembly pulley platform (6), separately
Connector E(36 is passed through in one end) it is fixed on vertical shift guide rail beam (34).
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described traversing platform (16)
Bottom arranges traversing jack B(19), traversing jack B(19) one end is by connector C(20) it is fixed on traversing platform (16),
The other end passes through connector D(21) it is fixed on traversing platform track (18).
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described outer mould holder (15)
For lateral symmetry separate type structure, both sides end template (24) is fixed together by bolt (25).
Cast-in-situ box girder Combined movable mould bases the most according to claim 1, it is characterised in that described horizontal Bailey beam
(14) top arranges support helix top (28), and support helix top (28) arrange cushion block (29).
10. construction method based on Combined movable mould bases cast-in-situ box girder, it is characterised in that comprise the following steps:
Step one, bracket Support bracket are installed: require to specify the pre-buried built-in fitting in position (2) at pier stud (37) according to design, treat pier
After post intensity reaches design requirement, bracket Support bracket (1) is fixed on pier stud (37) by built-in fitting (2) and above and coordinates by pier
Bracket Support bracket (1) fixed further by bracket pull bar；
Step 2, traversing stage+module: cross moving track (4) is first bolted on bracket Support bracket (1), then will be flat
Platform assembly pulley (6) is placed on cross moving track (4), by traversing jack A(7) install in place；
Step 3, Bailey beam are installed: longitudinal Bailey beam (11) and horizontal Bailey beam (14) assemble on ground in advance, pass through crane
Longitudinal direction Bailey beam (11) being winched on assembly pulley platform (6), bottom arranges jack (13) and vertical shift jack (35), treats
Both sides longitudinal direction Bailey beam (11) install in place after, by horizontal Bailey beam (14) lifting to specify position by articulated joint (30) with
Longitudinal Bailey beam (11) connects；
Step 4, fixing of the forming frame: require in longitudinal Bailey beam (11) the traversing platform track of upper welding (18) according to design, will in advance
Outer mould holder (15) lifting made, on traversing platform track (18), controls traversing jack A(7) postpone again to specific bit
Control traversing jack B(19) outer mould holder (15) is traversing to specifying position to inner side, by bolt (25) by outside both sides
Mould holder (15) is fixed together, and controls jack (13) and makes overall structure jacking to specifying position and regulating support helix top
(28) its stress is made；
Step 5, reinforcing bar cage hoisting and concreting: by the reinforcing bar cage hoisting of colligation molding in advance to template, treat interior mould
(31) after-pouring concrete maintenance are all installed；
Step 6, form removal: after maintenance reaches design requirement, control jack (13) contraction and make its overall structure decline, at weight
Make its automatic demoulding under the effect of power, then remove all connecting bolts (25) between mould holder (15) outside both sides, then control horizontal stroke
Moving jack B (19) makes outer mould holder (15) mobile to specifying position；
Step 7, via and next section of box girder construction: remove articulated joint (30) and coordinate haulage cable (39) to make it with one
Side longitudinal direction Bailey beam (11) separates, and traction to opposite side longitudinal direction Bailey beam (11) and is fixed temporarily, controls traversing jack A(7)
Make assembly pulley platform (6) traversing to specifying position, then control vertical shift jack (35) and make longitudinal Bailey beam (11) vertical shift realize
Hole, via to specific bit postpones and carries out next section of box girder construction.
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 |
Applications Claiming Priority (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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| CN106120563A true CN106120563A (en) | 2016-11-16 |
| CN106120563B CN106120563B (en) | 2017-09-08 |
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