CN203768814U - High-pier minor-radius curve cast-in-situ box girder novel moving die carrier - Google Patents
High-pier minor-radius curve cast-in-situ box girder novel moving die carrier Download PDFInfo
- Publication number
- CN203768814U CN203768814U CN201420102832.XU CN201420102832U CN203768814U CN 203768814 U CN203768814 U CN 203768814U CN 201420102832 U CN201420102832 U CN 201420102832U CN 203768814 U CN203768814 U CN 203768814U
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- Prior art keywords
- supporting leg
- main
- pier
- oil cylinder
- box girder
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- 239000000969 carriers Substances 0.000 title abstract 4
- 239000003921 oils Substances 0.000 claims abstract description 30
- 210000001331 Nose Anatomy 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000002585 bases Substances 0.000 claims description 19
- 210000001364 Upper Extremity Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 22
- 239000000725 suspensions Substances 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 4
- 238000010586 diagrams Methods 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 230000003014 reinforcing Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000000414 obstructive Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Abstract
Description
Technical field
The utility model belongs to construction technology of cast-in-place box field, particularly relates to a kind of high pier sharp radius curve cast-in-situ box girder Novel movable mould bases.
Background technology
Along with the increase of mountainous area highway and the increase of environmental protection attention degree, for avoiding filling out greatly and dig greatly, to coordinate mutually with pre-existing topography landforms as far as possible, high pier Curved bridge with sharp radius will get more and more.Be subject to the restriction of mountain area narrow field, precast beam lacks prefabricated place, and because pier shaft is higher, Full space support construction is both inconvenient, also dangerous.In this case, adopting mobile formwork to carry out construction of cast-in-situ box-beam, is more appropriate.
Summary of the invention
The technical problems to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art exactly, and provide a kind of be applicable to sweep >=750m, standard span 30～45m, beam be heavily less than 20t/m prestressed concrete continuous box girder construction high pier sharp radius curve cast-in-situ box girder Novel movable mould bases.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of high pier sharp radius curve cast-in-situ box girder Novel movable mould bases, comprise main frame assembly, outer modular system, supporting leg, electric hydraulic system and accessory system, described main frame assembly comprises two groups of longitudinal girders arranged side by side, on girder, be hinged with the front end bridge of the nose, bottom at girder is provided with track, described outer modular system comprises bed die truss, bed die and two outer side molds, before described supporting leg comprises, rear main supporting leg and front, in, rear auxiliary supporting leg, front, on rear main supporting leg, be respectively equipped with supporting skid rail, before described electric hydraulic system is included in, between at the bottom of rear main supporting leg top and girder, be provided with load-bearing oil cylinder, simultaneously front, rear main supporting leg is also provided with sideslip oil cylinder and vertical shift oil cylinder, described accessory system comprises moving die plate bridge fabrication machine, and front, in, the erecting by overhang of installing on rear auxiliary supporting leg.
Described girder is formed by fixedly connecting by before and after bolt by multistage.
Described bed die is hinged with two outer side molds respectively, and is respectively equipped with outer side mold rod-adjurstable between bed die and two outer side molds.
Described bed die truss, bed die and front auxiliary supporting leg are formed by fixedly connecting by the continuous bolt in middle part by two parts of left and right symmetry.
Between described forward and backward supporting leg and pier shaft, be fixedly connected with respectively by shear connector, shear connector one end is fixed on front leg strut or rear support leg, and the other end is arranged in pier shaft built-in fitting.
Described electric hydraulic system is also included in rear auxiliary supporting leg and is provided with sideslip oil cylinder.
Operating principle of the present utility model is:
When the construction of the utility model downlink movable mould frame, at pier shaft, built-in fitting is set, front main supporting leg Support bracket is arranged on bridge pier side, and rear main supporting leg is supported on and waters on case beam, its external mold template is with together horizontal and vertical movement of girder, lower to bridge both sides Clearance requirement.External mold can be closed, open; When main longitudinal grider walking, external mold closure, is fixed on longeron; Main longitudinal grider is in place fix after, external mold opens, assembling reinforcement inside, placing of concrete.
The beneficial effect of technical solutions of the utility model is:
1, structurally, the utility model downlink movable mould frame is upside-down mounting Support bracket voluntarily, and the front bridge of the nose is established hinge, rational in infrastructure, stressed clear and definite, is applicable to standard span in 30-45m Cast-in-Situ Continuous Beam; Bridge fabrication machine lifting, laterally folding, vertical shift via hole all adopt hydraulic control, stable action, safe and reliable, and greatly reduce labour intensity, improved efficiency of construction simultaneously; The via hole installation in place voluntarily of each supporting leg, has not only facilitated the construction of the high pier of high bridge, is also kept to two covers by the main supporting leg of common three cover, has reduced construction cost; In reach process, the installation of supporting leg does not need the cooperation of the equipment such as crane, reduces construction link, improves efficiency of construction.
2, structurally, girder described in the utility model adopts multistage to be spliced, convenient lifting; By regulating the rod-adjurstable on outer side mold can make outer side mold rotate to an angle and concrete beam disengaging, easy for operation; Described bed die truss, bed die and front auxiliary supporting leg are formed by fixedly connecting by the continuous bolt in middle part by two parts of left and right symmetry, and are fixedly connected with by shear connector respectively between described forward and backward supporting leg and pier shaft, simple and reasonable for structure, easy construction; On work progress curve, when via hole, can utilize rear auxiliary supporting leg sideslip oil cylinder to carry out at any time lateral attitude adjustment, stable action, safe and reliable, has reduced labour intensity, has improved efficiency of construction simultaneously.
3, to sum up, the high pier sharp radius curve of the utility model cast-in-situ box girder Novel movable mould bases is applicable to the horizontal curve bridge of radius 760m, be applicable to high pier operation, be specially adapted to that under Gao Dun, bridge, obstruction is many, disturbing factor is many, construction technology standard, periodization, be subject to orographic condition bridge curve radius less, can successfully solve a difficult problem for high pier sharp radius curve construction of cast-in-situ box-beam, and, rational in infrastructure, work progress stable action, safe and reliable, also improve efficiency of construction, reduce labour intensity and construction cost, therefore, be very suitable for promotion and implementation.
Brief description of the drawings
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation of the high pier sharp radius curve of the utility model cast-in-situ box girder Novel movable mould bases;
Fig. 2 is rear main supporting leg and the rear auxiliary supporting leg section structure schematic diagram of high pier sharp radius curve cast-in-situ box girder Novel movable mould bases shown in Fig. 1;
Fig. 3 be high pier sharp radius curve cast-in-situ box girder Novel movable mould bases shown in Fig. 1 front main supporting leg and in auxiliary supporting leg hanging section structure schematic diagram;
Fig. 4 is the section structure schematic diagram of the external mold open configuration of the high pier sharp radius curve of figure the utility model cast-in-situ box girder Novel movable mould bases;
Sequence number in figure: 1, girder, 2, the front end bridge of the nose, 3, track, 4, bed die truss, 5, bed die, 6, outer side mold, 7, front main supporting leg, 8, rear main supporting leg, 9, front auxiliary supporting leg, 10, auxiliary supporting leg in, 11, rear auxiliary supporting leg, 12, supporting skid rail, 13, load-bearing oil cylinder, 14, erecting by overhang, 15, rod-adjurstable, 16, shear connector, pier shaft A, B, C.
detailed description of the invention
Embodiment mono-:
Referring to Fig. 1 to Fig. 4, in figure, the high pier sharp radius curve of the utility model cast-in-situ box girder Novel movable mould bases, comprise main frame assembly, outer modular system, supporting leg, electric hydraulic system and accessory system, described main frame assembly comprises two groups of longitudinal girders 1 arranged side by side, on girder, be hinged with the front end bridge of the nose 2, be provided with track 3 in the bottom of girder, described outer modular system comprises bed die truss 4, bed die 5 and two outer side molds 6, before described supporting leg comprises, rear main supporting leg 7, 8 and front, in, rear auxiliary supporting leg 9, 10, 11, front, on rear main supporting leg, be respectively equipped with supporting skid rail 12, before described electric hydraulic system is included in, between at the bottom of rear main supporting leg top and girder, be provided with load-bearing oil cylinder 13, simultaneously front, rear main supporting leg is also provided with sideslip oil cylinder and vertical shift oil cylinder, on rear auxiliary supporting leg, be provided with sideslip oil cylinder, described accessory system comprises moving die plate bridge fabrication machine, and before, during and after the erecting by overhang 14 installed on auxiliary supporting leg.
Described girder is formed by fixedly connecting by before and after bolt by 4 sections.
Described bed die is hinged with two outer side molds respectively, and is respectively equipped with outer side mold rod-adjurstable 15 between bed die and two outer side molds.
Described bed die truss, bed die and front auxiliary supporting leg are formed by fixedly connecting by the continuous bolt in middle part by two parts of left and right symmetry.
Between described forward and backward supporting leg and pier shaft A or B, B or C, be fixedly connected with respectively by shear connector 16, shear connector one end is fixed on front leg strut or rear support leg, and the other end is arranged in pier shaft built-in fitting.
The course of work of the present utility model is as follows:
1, mobile formwork bridge fabrication machine has been spelled in construction hyte, adjusts template and puts in place, comprises the adjustment of lateral attitude and linear control.
2, the reinforcing bar of colligation base plate and web, installs internal mold, colligation top board reinforcing bar.Fluid concrete, health, stretch-draw, complete the construction of a bridge beam.In auxiliary supporting leg be moved to apart from the bridge floor at 1m place, B pier top supports and installs erecting by overhang hang girder (now auxiliary supporting leg in the support of C pier topmast, rear auxiliary supporting leg bridge floor support and afterwards hanging do not remove).Concrete operation method be in pad cushion block under auxiliary supporting leg, will between supporting leg and bridge floor, fill completely as far as possible.
3, forward and backward main supporting leg load-bearing oil cylinder crawl rises, and screws off locking nut, and oil cylinder all falls after rise.Main frame change into front auxiliary supporting leg support, in the state of auxiliary supporting leg and rear auxiliary supporting leg hanging.
4, remove forward and backward main supporting leg to drawing finish rolling deformed bar, the main supporting leg in front and back transforms for the hanging state on main frame.Forward and backward main supporting leg is outside mobile 350mm under sideslip oil cylinder effect, and shear connector is spun off from pier shaft built-in fitting.Now can mend and smear concrete at pier shaft built-in fitting place.
5, forward and backward main supporting leg under the effect of vertical shift oil cylinder, move ahead respectively 40m arrive before square pier (oil cylinder stroke 1000mm, need repeated action that supporting leg is advanced to front square pier), behind accurate adjustment position, under sideslip oil cylinder effect, to the traversing about 350mm of pier shaft, shear connector is mounted in pier shaft built-in fitting.Wear laterally drawing finish rolling deformed bar stretch-draw, main supporting leg has been shifted voluntarily.
6, main supporting leg load-bearing oil cylinder after jacking, holds out against load-bearing oil cylinder on rear main supporting leg and the girder of mobile formwork.Auxiliary supporting leg after removing, in erecting by overhang on auxiliary supporting leg; Now main frame is transformed into front auxiliary supporting leg support nose girder leading portion, rear main supporting leg support girder middle part, rear auxiliary supporting leg hanging main beam rear end.
7, regulating rod-adjurstable on outer side mold that outer side mold is rotated to an angle departs from concrete beam; The oil cylinder of rear auxiliary supporting leg, rear main supporting leg, front auxiliary supporting leg reclaims the track of mobile formwork girder bottom is put off on the supporting skid rail of forward and backward main supporting leg, auxiliary supporting leg hand jack before shrinking.
8, remove the continuous bolt of bed die truss, bed die, a front auxiliary midleg, main frame is laterally opened 3400mm under the main supporting leg in front and back and the effect of rear auxiliary supporting leg sideslip oil cylinder, and main frame reaches via hole state.
9, main frame completes via hole operation under rear main supporting leg vertical shift oil cylinder advances.On curve, when via hole, should utilize rear auxiliary supporting leg sideslip oil cylinder to carry out at any time lateral attitude adjustment.
10, main frame is under the effect of main supporting leg sideslip oil cylinder, the laterally inwardly mobile 3400mm of gradation, and main frame closes up in place; Connect the horizontal connection of template, mould bases.
11, forward and backward main supporting leg support cylinder jacking, main frame reaches regulation absolute altitude, rear auxiliary supporting leg suspention girder tail end, mould bases is in place, adjusts template, completes the operation in next hole.
The foregoing is only the schematic detailed description of the invention of the utility model; not in order to limit scope of the present utility model; any those skilled in the art is not departing from equivalent variations and the amendment under the prerequisite of the utility model design and principle, made, all should belong to the scope of the utility model protection.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102832.XU CN203768814U (en) | 2014-03-08 | 2014-03-08 | High-pier minor-radius curve cast-in-situ box girder novel moving die carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102832.XU CN203768814U (en) | 2014-03-08 | 2014-03-08 | High-pier minor-radius curve cast-in-situ box girder novel moving die carrier |
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|---|---|
| CN203768814U true CN203768814U (en) | 2014-08-13 |
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| CN201420102832.XU CN203768814U (en) | 2014-03-08 | 2014-03-08 | High-pier minor-radius curve cast-in-situ box girder novel moving die carrier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131515A (en) * | 2014-08-20 | 2014-11-05 | 中铁十九局集团第二工程有限公司 | Method for constructing cast-in-place box beam by means of movable formwork |
| CN104594205A (en) * | 2015-01-31 | 2015-05-06 | 长安大学 | Rear crossbeam and main girder connecting structure for self-propelled movable formwork |
| CN105239510A (en) * | 2015-07-14 | 2016-01-13 | 中国中铁航空港建设集团有限公司 | Dismounting beam support used for high pier small-radius curve cast-in-situ box beam and construction method |
| CN105625192A (en) * | 2016-02-24 | 2016-06-01 | 山东恒堃机械有限公司 | Movable formwork front leg anti-overturning system |
| CN106149639A (en) * | 2016-08-30 | 2016-11-23 | 郑州新大方重工科技有限公司 | A kind of mobile formwork for single rectangle top opening enclosed type water conservancy aqueduct construction |
| CN108086170A (en) * | 2017-12-13 | 2018-05-29 | 中国铁建大桥工程局集团有限公司 | The hole construction method excessively of mobile formwork and mobile formwork |
| CN110700100A (en) * | 2019-10-11 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Bailey beam bundle construction method for cast-in-situ platform of high-pier small-radius curve ramp bridge |
-
2014
- 2014-03-08 CN CN201420102832.XU patent/CN203768814U/en active IP Right Grant
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131515A (en) * | 2014-08-20 | 2014-11-05 | 中铁十九局集团第二工程有限公司 | Method for constructing cast-in-place box beam by means of movable formwork |
| CN104594205A (en) * | 2015-01-31 | 2015-05-06 | 长安大学 | Rear crossbeam and main girder connecting structure for self-propelled movable formwork |
| CN104594205B (en) * | 2015-01-31 | 2016-05-11 | 长安大学 | Self-propelled moveable formwork rear cross beam and main beam connecting structure |
| CN105239510A (en) * | 2015-07-14 | 2016-01-13 | 中国中铁航空港建设集团有限公司 | Dismounting beam support used for high pier small-radius curve cast-in-situ box beam and construction method |
| CN105625192A (en) * | 2016-02-24 | 2016-06-01 | 山东恒堃机械有限公司 | Movable formwork front leg anti-overturning system |
| CN106149639A (en) * | 2016-08-30 | 2016-11-23 | 郑州新大方重工科技有限公司 | A kind of mobile formwork for single rectangle top opening enclosed type water conservancy aqueduct construction |
| CN108086170A (en) * | 2017-12-13 | 2018-05-29 | 中国铁建大桥工程局集团有限公司 | The hole construction method excessively of mobile formwork and mobile formwork |
| CN110700100A (en) * | 2019-10-11 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Bailey beam bundle construction method for cast-in-situ platform of high-pier small-radius curve ramp bridge |
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| C14 | Grant of patent or utility model | ||
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