CN105735136A - Box girder top plate steel bar integral forming formwork and construction method - Google Patents
Box girder top plate steel bar integral forming formwork and construction method Download PDFInfo
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- CN105735136A CN105735136A CN201610172612.8A CN201610172612A CN105735136A CN 105735136 A CN105735136 A CN 105735136A CN 201610172612 A CN201610172612 A CN 201610172612A CN 105735136 A CN105735136 A CN 105735136A
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- mould bases
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- formwork
- steel pipe
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to a box girder top plate steel bar integral forming formwork. The formwork is composed of formwork horizontal bars, formwork vertical bars, formwork lower layer longitudinal bars, inclined supports, formwork cantilever bars, limiting bars, supporting bars, U-shaped positioning ribs, steel pipes, L-shaped steel pipes and formwork upper layer longitudinal bars. The formwork vertical bars, the formwork horizontal bars and formwork lower layer longitudinal bars are welded together, the inclined supports are provided, and the steel pipes are symmetrically arranged on the outer sides of the formwork vertical bars. One end of each formwork cantilever bar is welded and fixed to the corresponding formwork vertical bar, and the other end of each formwork cantilever bar is provided with the corresponding limiting bar. The U-shaped positioning ribs are arranged on the formwork upper layer longitudinal bars. The supporting bars are provided with arc positioning grooves, and the two ends of each supporting bar are fixed to the tops of the corresponding formwork vertical bars. The two ends of each dismountable formwork horizontal bar are each provided with one L-shaped steel pipe, and one end of each L-shaped steel pipe is provided with a dismountable formwork positioning horizontal bars to form a dismountable formwork. The box girder top plate steel bar integral forming formwork has the characteristics that dismounting and mounting are convenient, construction efficiency is high, and precise positioning for box girder top plate steel bar integral binding forming is improved; high economic and technical benefits are achieved.
Description
Technical field
The present invention relates to box beam roof steel bar global formation mould bases, particularly relate to removable mould bases and the dismountable mould bases of upper strata lengthways main steel bar.
Background technology
Bridge is the key project of road construction, and beam bridge is in occupation of leading position in science of bridge building, and wherein the processing of prefabricated case beam roof steel bar overall binding and installation quality and progress monitoring are the emphasis in beam slab prefabricated construction and difficult point.
At present, the process of prefabricated box-beam roof steel bar colligation is usually and completes in template after the base plate of box beam and web reinforcement colligation complete or carry out on top board colligation mould bases.It is long that traditional binding method has the disadvantage that prefabricated case beam roof steel bar process of binding takies time of precast pedestal and box girder formwork, is unfavorable for that the turnover of box beam pedestal and box girder formwork utilizes；Although the turnover of box beam pedestal and box girder formwork utilizes to adopt mould bases method assembling reinforcement to ensure that to a certain extent, but mould bases lacks the support to top bars colligation, and top bars colligation precision is low, and construction quality is difficult to ensure that.
In consideration of it, need a kind of easy accessibility of invention at present badly, speed of application is fast, it is achieved the movement of mould bases, provides box beam roof steel bar global formation mould bases and the construction method of the location of high precision for box beam roof steel bar overall binding molding.
Summary of the invention
It is an object of the invention to overcome prior art not enough, it is provided that a kind of easy accessibility, speed of application is fast, it is achieved the movement of mould bases, provides box beam roof steel bar global formation mould bases and the construction method of the location of high precision for box beam roof steel bar overall binding molding.
For achieving the above object, present invention employs techniques below scheme:
A kind of box beam roof steel bar global formation mould bases, skewed horizontal load, mould bases cantilever lever, gag lever post, support bar, U-shaped positioning bar, steel pipe, L-type steel pipe, mould bases long layer vertical pole vertical including mould bases cross bar, mould bases vertical rod, mould bases lower floor.Mould bases vertical rod welds together with mould bases cross bar and mould bases lower floor cross bar, and arranges skewed horizontal load, and outside mould bases vertical rod, symmetry arranges steel pipe；Mould bases cantilever lever one end and mould bases vertical rod are welded and fixed, and the mould bases cantilever lever other end arranges gag lever post；Mould bases upper strata vertical pole arranges U-shaped positioning bar；Arranging arc detent on support bar, support bar two ends are fixed on mould bases vertical rod top；Dismountable mould bases cross bar two ends respectively arrange L steel pipe, and L-type steel pipe one end arranges dismountable mould bases retention bar and forms dismountable mould bases.
Described mould bases bottom of upright rod arranges pulley, and is fixed by sizing mould bases by bolt and base built-in fitting, removes bolt sizing mould bases and can move.
Arranging arc detent on described dismountable mould bases retention bar, L-type steel pipe is interspersed in steel pipe.
The construction method of described box beam roof steel bar global formation mould bases, comprises the following steps:
1) sizing fixing of the forming frame: weld together with mould bases cross bar and mould bases lower floor cross bar according to designing requirement mould bases vertical rod, between mould bases vertical rod and mould bases cross bar, skewed horizontal load is set, mould bases vertical rod welded top mould bases upper strata vertical pole, bottom arranges pulley, and outside mould bases vertical rod, symmetry arranges steel pipe；
2) cantilever lever is installed: mould bases cantilever lever one end and mould bases vertical rod are welded and fixed, and the mould bases cantilever lever other end arranges gag lever post；
3) align member is installed: arrange U-shaped positioning bar according to designing requirement uniformly inside the vertical pole of mould bases upper strata, and support bar arranges arc detent uniformly with dismountable mould bases retention bar, and support bar two ends are fixed on mould bases vertical rod and specify position；
4) lower floor's lengthways main steel bar and stirrup colligation: be first arranged between U-shaped positioning bar in space by the stirrup that brake forming is good, is then arranged on lower floor's lengthways main steel bar in arc positioning groove and positions temporarily；
5) dismountable fixing of the forming frame: dismountable mould bases cross bar two ends respectively arrange L steel pipe, L-type steel pipe one end arranges dismountable mould bases retention bar and forms dismountable mould bases, and L-type steel pipe is interspersed in steel pipe；
6) upper strata lengthways main steel bar colligation: interspersed upper strata lengthways main steel bar is also temporarily fixed in arc detent, stirrup and upper strata lengthways main steel bar colligation is fixed.
The invention has the beneficial effects as follows:
(1) changing traditional direct construction technology of assembling reinforcement on precast beam pedestal, greatly reduce the time taking precast pedestal and box girder formwork, construction period substantially shortens.
(2) can quick and precisely position box beam roof steel bar position, preformed hole and built-in fitting position, extract dismountable molded base part after top bars colligation out, do not affect the integral hoisting of steel reinforcement cage, improve reinforcing bar binding efficiency.
(3) whole mould bases can be processed into according to the overall dimensions of prefabricated case beam top board and thickness of protection tier, easy for installation.
Accompanying drawing explanation
Fig. 1 is box beam roof steel bar global formation die carrier structure schematic diagram of the present invention；
Fig. 2 is box beam roof steel bar global formation mould bases side schematic view of the present invention；
Fig. 3 is construction flow chart of the present invention；
In figure: 1. base；2. built-in fitting；3. bolt；4. mould bases cross bar；5. mould bases vertical rod；6. mould bases lower floor vertical pole；7. skewed horizontal load；8. pulley；9. mould bases cantilever lever；10. gag lever post；11. support bar；12.U type positioning bar；13. arc detent；14. stirrup；15. lower floor's lengthways main steel bar；16. steel pipe；17. dismountable mould bases retention bar；18. dismountable mould bases cross bar；19.L shape steel tube；20. mould bases upper strata vertical pole；21. upper strata lengthways main steel bar.
Detailed description of the invention
Just not stating tired in these enforcements such as present embodiment welding for steel structure technique, bolt connection construction technique, reinforcing bar binding construction technology, emphasis sets forth the embodiment that the present invention relates to structure.
Fig. 1 is box beam roof steel bar global formation die carrier structure schematic diagram of the present invention.With reference to shown in Fig. 1, box beam roof steel bar global formation mould bases of the present invention specifically includes that mould bases cross bar 4, mould bases vertical rod 5, mould bases lower floor be vertical 6, skewed horizontal load 7, mould bases cantilever lever 9, gag lever post 10, support bar 11, U-shaped positioning bar 12, steel pipe 16, L-type steel pipe 19, the long layer vertical pole 20 of mould bases.
With reference to shown in Fig. 1, mould bases vertical rod 5 welds together with mould bases cross bar 4 and mould bases lower floor cross bar 6, and arranges skewed horizontal load 7, and outside mould bases vertical rod 5, symmetry arranges steel pipe 16；Mould bases cantilever lever 9 one end and mould bases vertical rod 5 are welded and fixed, and mould bases cantilever lever 9 other end arranges gag lever post 10；Dismountable mould bases cross bar 18 two ends respectively arrange L steel pipe 19, and L-type steel pipe 19 one end arranges dismountable mould bases retention bar 17 and forms dismountable mould bases；Pulley 8 is set bottom mould bases vertical rod 5, and by bolt 3 and base 1 built-in fitting 2, sizing mould bases is fixed, remove bolt 3 mould bases of shaping and can move；.
With reference to shown in Fig. 2, mould bases upper strata vertical pole 20 arranges U-shaped positioning bar 12；Arranging arc detent on support bar 11, support bar 11 two ends are fixed on mould bases vertical rod 5 top；Arranging arc detent 13 on dismountable mould bases retention bar 17, L-type steel pipe 19 is interspersed in steel pipe 16.
Present invention also offers the construction method of above-mentioned box beam roof steel bar global formation mould bases, mainly comprise the steps that
1) sizing fixing of the forming frame: weld together with mould bases cross bar 4 and mould bases lower floor cross bar 6 according to designing requirement mould bases vertical rod 5, skewed horizontal load 7 is set between mould bases vertical rod 5 and mould bases cross bar 4, mould bases vertical rod 5 welded top mould bases upper strata vertical pole 20, bottom arranges pulley 8, and outside mould bases vertical rod 5, symmetry arranges steel pipe 16；
2) cantilever lever 9 is installed: mould bases cantilever lever 9 one end and mould bases vertical rod 5 are welded and fixed, and mould bases cantilever lever 9 other end arranges gag lever post 10；
3) align member is installed: arrange U-shaped positioning bar according to designing requirement uniformly inside mould bases upper strata vertical pole 20, on support bar 11 and dismountable mould bases retention bar 17 arc detent is set uniformly, support bar 11 two ends are fixed on mould bases vertical rod 5 and specify position；
4) lower floor's lengthways main steel bar 15 and stirrup 14 colligation: be first arranged on by the stirrup that brake forming is good between U-shaped positioning bar 12 in space, is then arranged on lower floor's lengthways main steel bar 15 in arc positioning groove 13 and positions temporarily；
5) dismountable fixing of the forming frame: dismountable mould bases cross bar 18 two ends respectively arrange L steel pipe 19, L-type steel pipe 19 one end arranges dismountable mould bases retention bar 17 and forms dismountable mould bases, and L-type steel pipe 19 is interspersed in steel pipe 16.
6) upper strata lengthways main steel bar 21 colligation: interspersed upper strata lengthways main steel bar 21 is also temporarily fixed in arc detent 13, stirrup 14 and upper strata lengthways main steel bar 21 colligation is fixed.
Claims (4)
1. a box beam roof steel bar global formation mould bases, it is characterised in that: include mould bases cross bar (4), mould bases vertical rod (5), mould bases lower floor vertical (6), skewed horizontal load (7), mould bases cantilever lever (9), gag lever post (10), support bar (11), U-shaped positioning bar (12), steel pipe (16), L-type steel pipe (19) and the long layer vertical pole (20) of mould bases；Mould bases vertical rod (5) welds together with mould bases cross bar (4) and mould bases lower floor cross bar (6), and arranges skewed horizontal load (7), and what mould bases vertical rod (5) outside was symmetrical arranges steel pipe (16)；Mould bases cantilever lever (9) one end and mould bases vertical rod (5) are welded and fixed, and mould bases cantilever lever (9) other end arranges gag lever post (10)；Mould bases upper strata vertical pole (20) arranges U-shaped positioning bar (12)；Arranging arc detent (13) on support bar (11), support bar (11) two ends are fixed on mould bases vertical rod (5) top；Dismountable mould bases cross bar (18) two ends respectively arrange L-type steel pipe (19), and L-type steel pipe (19) one end arranges dismountable mould bases retention bar (17) and forms dismountable mould bases.
2. box beam roof steel bar global formation mould bases according to claim 1, it is characterized in that: mould bases vertical rod (5) bottom arranges pulley (8), and is fixed by bolt (3) and base (1) built-in fitting (2).
3. box beam roof steel bar global formation mould bases according to claim 1, it is characterized in that: arranging arc detent (13) on dismountable mould bases retention bar (17), L-type steel pipe (19) is interspersed in steel pipe (16).
4. the construction method of box beam roof steel bar global formation mould bases according to claim 1, it is characterised in that comprise the following steps:
1) fixing of the forming frame: weld together with mould bases cross bar (4) and mould bases lower floor cross bar (6) according to designing requirement mould bases vertical rod (5), skewed horizontal load (7) is set between mould bases vertical rod (5) and mould bases cross bar (4), mould bases vertical rod (5) welded top mould bases upper strata vertical pole (20), bottom arranges pulley (8), and what mould bases vertical rod (5) outside was symmetrical arranges steel pipe (16)；
2) cantilever lever (9) is installed: mould bases cantilever lever (9) one end and mould bases vertical rod (5) are welded and fixed, and mould bases cantilever lever (9) other end arranges gag lever post (10)；
3) align member is installed: arrange U-shaped positioning bar (12) according to designing requirement uniformly along inner side, mould bases upper strata vertical pole (20), on support bar, (11) and dismountable mould bases retention bar (17) arrange arc detent (13) uniformly, and support bar (11) two ends are fixed on mould bases vertical rod (5) and specify position；
4) lower floor's lengthways main steel bar (15) and stirrup (14) colligation: be first arranged between U-shaped positioning bar (12) in space by stirrup (14) good for brake forming, is then arranged on lower floor's lengthways main steel bar (15) in arc positioning groove (13) and positions temporarily；
5) dismountable fixing of the forming frame: dismountable mould bases cross bar (18) two ends respectively arrange L-type steel pipe (19), L-type steel pipe (19) one end arranges dismountable mould bases retention bar (17) and forms dismountable mould bases, and L-type steel pipe (19) is interspersed in steel pipe (16)；
6) upper strata lengthways main steel bar (21) colligation: interspersed upper strata lengthways main steel bar (21) is also temporarily fixed in arc detent (13), stirrup (14) and upper strata lengthways main steel bar (21) colligation is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172612.8A CN105735136B (en) | 2016-03-24 | 2016-03-24 | Box beam roof steel bar global formation mould bases and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610172612.8A CN105735136B (en) | 2016-03-24 | 2016-03-24 | Box beam roof steel bar global formation mould bases and construction method |
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| CN105735136A true CN105735136A (en) | 2016-07-06 |
| CN105735136B CN105735136B (en) | 2017-06-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835996A (en) * | 2017-03-20 | 2017-06-13 | 浙江省衢州市交通建设集团有限公司 | The reinforcing bar moulding bed and construction method of construction bridges T beams |
| CN111673019A (en) * | 2020-05-22 | 2020-09-18 | 浙江新中源建设有限公司 | Steel bar positioning device for civil engineering and use method thereof |
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| CN205529929U (en) * | 2016-03-24 | 2016-08-31 | 浙江大学城市学院 | Whole shaping die carrier of case back slab muscle |
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2016
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| CN201989232U (en) * | 2011-03-11 | 2011-09-28 | 中铁二十五局集团建筑安装工程有限公司 | Steel bar binding model for top plate of precast box girder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835996A (en) * | 2017-03-20 | 2017-06-13 | 浙江省衢州市交通建设集团有限公司 | The reinforcing bar moulding bed and construction method of construction bridges T beams |
| CN106835996B (en) * | 2017-03-20 | 2018-12-28 | 浙江省衢州市交通建设集团有限公司 | The reinforcing bar moulding bed and construction method of construction bridges T beam |
| CN111673019A (en) * | 2020-05-22 | 2020-09-18 | 浙江新中源建设有限公司 | Steel bar positioning device for civil engineering and use method thereof |
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| CN105735136B (en) | 2017-06-23 |
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