CN108843024A - The construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle - Google Patents
The construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle Download PDFInfo
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- CN108843024A CN108843024A CN201810696418.9A CN201810696418A CN108843024A CN 108843024 A CN108843024 A CN 108843024A CN 201810696418 A CN201810696418 A CN 201810696418A CN 108843024 A CN108843024 A CN 108843024A
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- box girder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
- E04G21/123—Wire twisting tools
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- Architecture (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a kind of construction methods of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle, and this approach includes the following steps：(1) smooth location, measurement box beam bind stage；(2) box beam binds pedestal bound edge；(3) production U-shaped box beam reinforcing bar binding tire film tool；(4) production V-arrangement and the pre- tensioning cantilever beam of door shape prefabricated small box girder framework of steel reinforcement genesis analysis muscle；(5) the pre- tensioning cantilever beam suspension cable of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle is made；(6) punching；(7) the V-arrangement pre- tensioning cantilever beam of prefabricated small box girder framework of steel reinforcement genesis analysis muscle and box beam binding pedestal, U-shaped box beam reinforcing bar binding tire film tool are linked together；The door shape pre- tensioning cantilever beam of prefabricated small box girder framework of steel reinforcement genesis analysis muscle and door shape box beam reinforcing bar binding tire film tool are linked together；(8) tensioning, casting concrete in integral hoisting to precast pedestal after the completion of binding are carried out to small box girder framework of steel reinforcement genesis analysis muscle.Work efficiency is high by the present invention, save the cost, easy to operate practical.
Description
Technical field
The present invention relates to bridge construction field more particularly to the pre- tensioning of prefabricated small box girder framework of steel reinforcement genesis analysis muscle
The construction method of binding.
Background technique
In the binding construction of prefabricated small box girder framework of steel reinforcement, traditional construction way is：Prefabricated small box girder framework of steel reinforcement uses
Numerical-control bending machine carries out Steel Reinforcing Bar Material and processing, carries out the methods of reinforcing bar binding and installation using mould, to guarantee framework of steel reinforcement
Indeformable and protective layer thickness, usually using improving the straightening of the machining accuracy of mould, genesis analysis muscle, increase concrete mats
The construction methods such as number of blocks.But there are following defects for traditional handicraft：
(1) due to the binding and installation using mould progress reinforcing bar, mould is artificial, the precision and design drawing of processing
There are deviations between paper.
(2) during small box girder framework of steel reinforcement genesis analysis muscle straightening, genesis analysis muscle straightening is uneven, or it is more or
Few has not straight position, in addition straightener larger workload, equipment gradually aging, the genesis analysis muscle quality produced
Also it gradually glides.
(3) in small box girder framework of steel reinforcement genesis analysis muscle process of binding, since genesis analysis muscle itself has quality and tire
The spacing of tool is 1m, and genesis analysis muscle has the position of downwarp very much, and reinforcing bar is not straight.
If it is guarantee genesis analysis muscle position accurately with the straight degree of reinforcing bar（Generally about using increasing personnel investment
6 work days）, additional cost of labor will be increased, causes inevitable waste of human resource.
Summary of the invention
Work efficiency is high, save the cost, easy to operate practical technical problem to be solved by the invention is to provide a kind of
The construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle.
To solve the above problems, the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle of the present invention is applied
Work method, includes the following steps：
(1) smooth location before constructing accurately measures box beam binding stage, makes its zero deflection；
(2) the box beam binding pedestal carries out bound edge with pedestal equal leg angle；
(3) production U-shaped box beam reinforcing bar binding tire film tool is longitudinally weldingly fixed on terrace in every interval 1m by box beam binding pedestal
On, it is longitudinal to be connected with lateral；
(4) production V-arrangement and the pre- tensioning cantilever beam of door shape prefabricated small box girder framework of steel reinforcement genesis analysis muscle：
I-steel I is connected into I-steel III by welding by both sides according to box girder web slope with I-steel II and forms v-component；It is described
V-component is embedded at the terrace or less 100cm；
I-steel IV is connected into I-steel VI by welding by both sides according to box beam top plate width with I-steel V and forms door shape component；Institute
A shape component is stated to be embedded at the terrace or less 100cm；
(5) the pre- tensioning cantilever beam suspension cable of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle is made：
Reinforcing bar I is made into U-shaped, and according to the position of the I-steel I and the I-steel II, the reinforcing bar I is embedded to described
150cm below terrace and it is horizontal away from the I-steel I and the I-steel II be 1m；Then with wirerope by the I-steel I
It links together with the I-steel II and the reinforcing bar I；
(6) to the I-steel I and the I-steel II and the I-steel III according to the position of small box girder exposed steel bar and big
It is small to be punched out；To the I-steel IV and the I-steel V and the I-steel VI according to the position of small box girder exposed steel bar
It sets and is punched out with size；
(7) the pre- tensioning cantilever beam of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle and the box beam are bound into pedestal, institute
U-shaped box beam reinforcing bar binding tire film tool is stated to link together；The door shape prefabricated small box girder framework of steel reinforcement genesis analysis muscle is opened in advance
Cantilever beam is drawn to link together with door shape box beam reinforcing bar binding tire film tool；
(8) tensioning equipment carries out tensioning to small box girder framework of steel reinforcement genesis analysis muscle with matched anchorage, whole after the completion of binding to hang
It is filled to casting concrete in precast pedestal.
The step (2) in the hem width of pedestal equal leg angle be 50mm, side thickness is 5mm.
The step (4) in I-steel I, I-steel II, I-steel IV, I-steel V, I-steel VI height be
400mm, width 144mm, waist thickness are 12.5mm, and leg thickness is 16.5mm.
The step (4) in I-steel III height be 280mm, width 124mm, waist thickness are 10.5mm, leg thickness is
13.7mm。
The step (5) in reinforcing bar I specification be 28 mm of Ф.
The step (5) in wirerope specification be 18 mm of Ф.
The step (8) in tensioning equipment the manual rockbolt tension meter of model ZY-10 type.
Compared with the prior art, the present invention has the following advantages：
1, the straight degree of small box girder framework of steel reinforcement genesis analysis muscle is effectively ensured.
The V-arrangement and door shape cantilever beam for having small box girder framework of steel reinforcement genesis analysis muscle tensioning due to the present invention are as tensioning stress
Barrier, genesis analysis reinforcing bar stress after the completion of tensioning is effectively ensured and does not relax.Genesis analysis muscle in process of binding always
In tighten, straight state.
2, reinforcing bar positioning, downwarp disadvantage rambunctious in conventional construction are avoided.
Due to oneself of the accuracy of the invention for purposefully controlling small box girder framework of steel reinforcement genesis analysis muscle position and reinforcing bar
So lower amount of deflection, therefore in construction can preferably guarantee the design position and reinforcing bar of small box girder framework of steel reinforcement genesis analysis muscle
Amount of deflection.
3, tensioning system is reusable.
Tensioning system in the present invention is that fashioned iron and tensioning instrument form, can be made in a project 2 pairs of tensioning V-arrangements with
Door shape cantilever beam, 1 manual tensioning instrument, can the segmental operation in construction, and tensioning instrument is in different projects
It is reusable.
4, it economizes on resources, save engineering cost.
Steel bar meter in the present invention uses factory normalization continuous-flow type operation, improves work efficiency, reduces the money of raw material
Source waste；The binding and installation for carrying out framework of steel reinforcement after the completion of the tensioning of genesis analysis muscle in mould use truss hoisting entirety
Lift reduce into mould personnel, material investment, reduce labor intensity, it is high that quality obtains effective guarantee, construction efficiency, mentions
High industrialization degree.Especially after the completion of the tensioning of genesis analysis muscle, does not need additional personnel and worker is cooperated to bind operation, effectively
Ground reduces cost of labor.
5, work efficiency is high, easy to operate practical by the present invention.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is V-arrangement tensioning cantilever beam side view of the invention.
Fig. 2 is V-arrangement tensioning cantilever beam structure figure of the invention.
Fig. 3 is door shape tensioning cantilever beam side view of the invention.
Fig. 4 is door shape tensioning cantilever beam structure figure of the invention.
Fig. 5 is V-arrangement tensioning cantilever beam and mould connection figure in the present invention.
Fig. 6 is door shape tensioning cantilever beam and mould connection figure in the present invention.
Fig. 7 is Small Precast Box beam bottom of the invention, the U-shaped binding clamping fixture of web.
Fig. 8 is prefabricated small box girder gate top plate binding clamping fixture of the invention.
In figure：1-box beam binds pedestal；2-pedestal equal leg angles；3-I-steel III；4-I-steel I；4 '-I-shapeds
Steel II；5-reinforcing bars I；6-wirerope；7-I-steel IV；7 '-I-steel V；8-I-steel VI；9-tensioning equipments；10—
Small box girder framework of steel reinforcement genesis analysis muscle；11-U-shaped box beam reinforcing bar binding tire films tool；12-terraces；13-door shape box beam reinforcing bars
Binding tire film tool.
Specific embodiment
As shown in Fig. 1 ~ 8, the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle, including it is following
Step：
(1) smooth location before constructing accurately measures box beam binding 1 position of pedestal, makes its zero deflection.
(2) box beam binds pedestal 1 and carries out bound edge with pedestal equal leg angle 2；The hem width of pedestal equal leg angle 2 is 50mm, and side is thick
For 5mm.
(3) production U-shaped box beam reinforcing bar binding tire film tool 11 is weldingly fixed on ground by the longitudinal every interval 1m of box beam binding pedestal 1
It is longitudinal to be connected with lateral on level ground 12.
(4) production V-arrangement and the pre- tensioning cantilever beam of door shape prefabricated small box girder framework of steel reinforcement genesis analysis muscle：
I-steel I 4 is connected into I-steel III 3 by welding by both sides according to box girder web slope with I-steel II 4 ' and forms v-component；
V-component is embedded at 12 or less 100cm of terrace.
I-steel IV 7 is connected into I-steel VI 8 by welding by both sides according to box beam top plate width with I-steel V 7 ' and forms door
Shape component；At door shape component embedment 12 or less 100cm of terrace.
I-steel I 4, I-steel II 4 ', I-steel IV 7, I-steel V 7 ', I-steel VI 8 height be 400mm, width
For 144mm, waist thickness is 12.5mm, and leg thickness is 16.5mm.
The height of I-steel III 3 is 280mm, width 124mm, waist thickness are 10.5mm, leg thickness is 13.7mm.
(5) the pre- tensioning cantilever beam suspension cable of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle is made：
Reinforcing bar I 5 is made into U-shaped, and according to the position of I-steel I 4 and I-steel II 4 ', the reinforcing bar I 5 for being 28 mm of Ф by specification
Be embedded to 12 or less 150cm of terrace and it is horizontal away from I-steel I 4 and I-steel II 4 ' be 1m；Then the steel wire for being 18 mm of Ф with specification
Rope 6 links together I-steel I 4 and I-steel II 4 ' and reinforcing bar I 5.
To I-steel I 4 and I-steel II 4 ' and I-steel III 3 according to small box girder exposed steel bar position and size into
Row punching；I-steel IV 7 and I-steel V 7 ' and I-steel VI 8 are carried out according to the position of small box girder exposed steel bar and size
Punching.
(7) the V-arrangement pre- tensioning cantilever beam of prefabricated small box girder framework of steel reinforcement genesis analysis muscle and box beam are bound into pedestal 1, U-shaped case
Beam steel bar colligation fetal membrane tool 11 links together；By the door shape pre- tensioning cantilever beam of prefabricated small box girder framework of steel reinforcement genesis analysis muscle with
Door shape box beam reinforcing bar binding tire film tool 13 links together.
(8) tensioning equipment 9 carries out tensioning to small box girder framework of steel reinforcement genesis analysis muscle 10 with matched anchorage, and binding is completed
Casting concrete in integral hoisting to precast pedestal afterwards.
Wherein：The manual rockbolt tension meter of model ZY-10 type of tensioning equipment 9.
Tensioning system in the present invention is that fashioned iron and tensioning instrument form, can be made in a project 2 pairs of tensioning V-arrangements with
Door shape cantilever beam, 1 manual tensioning instrument can the segmental operation in construction.
Claims (7)
1. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle, includes the following steps：
(1) smooth location before constructing accurately measures box beam binding pedestal（1）Position makes its zero deflection；
(2) the box beam binds pedestal（1）With pedestal equal leg angle（2）Carry out bound edge；
(3) production U-shaped box beam reinforcing bar binding tire film tool（11）, pedestal is bound by the box beam（1）Longitudinal every interval 1m is welded and fixed
In terrace（12）On, it is longitudinal to be connected with lateral；
(4) production V-arrangement and the pre- tensioning cantilever beam of door shape prefabricated small box girder framework of steel reinforcement genesis analysis muscle：
By I-steel I（4）With I-steel II（4'）I-steel III is connected by welding by both sides according to box girder web slope（3）Form V
Shape component；The v-component is embedded to the terrace（12）At following 100cm；
By I-steel IV（7）With I-steel V（7'）I-steel VI is connected by welding by both sides according to box beam top plate width（8）It is formed
Door shape component；The door shape component is embedded to the terrace（12）At following 100cm；
(5) the pre- tensioning cantilever beam suspension cable of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle is made：
By reinforcing bar I（5）It is made into U-shaped, and according to the I-steel I（4）With the I-steel II（4'）Position, by the reinforcing bar
Ⅰ（5）It is embedded to the terrace（12）Following 150cm and level away from the I-steel I（4）With the I-steel II（4'）For 1m；So
After use wirerope（6）By the I-steel I（4）With the I-steel II（4'）And the reinforcing bar I（5）It links together；
(6) to the I-steel I（4）With the I-steel II（4'）And the I-steel III（3）According to small box girder exposed steel bar
Position be punched out with size；To the I-steel IV（7）With the I-steel V（7'）And the I-steel VI（8）It presses
It is punched out according to the position and size of small box girder exposed steel bar；
(7) the pre- tensioning cantilever beam of V-arrangement prefabricated small box girder framework of steel reinforcement genesis analysis muscle and the box beam are bound into pedestal（1）,
The U-shaped box beam reinforcing bar binding tire film tool（11）It links together；By the door shape prefabricated small box girder framework of steel reinforcement genesis analysis
The pre- tensioning cantilever beam of muscle and door shape box beam reinforcing bar binding tire film have（13）It links together；
(8) tensioning equipment（9）With matched anchorage to small box girder framework of steel reinforcement genesis analysis muscle（10）Tensioning is carried out, binding is completed
Casting concrete in integral hoisting to precast pedestal afterwards.
2. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (2) in pedestal equal leg angle（2）Hem width be 50mm, side thickness be 5mm.
3. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (4) in I-steel I（4）, I-steel II（4'）, I-steel IV（7）, I-steel V（7'）, I-steel
Ⅵ（8）Height be 400mm, width 144mm, waist thickness be 12.5mm, leg thickness be 16.5mm.
4. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (4) in I-steel III（3）Height be 280mm, width 124mm, waist thickness are 10.5mm, leg thickness is
13.7mm。
5. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (5) in reinforcing bar I（5）Specification be 28 mm of Ф.
6. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (5) in wirerope（6）Specification be 18 mm of Ф.
7. the construction method of the pre- tensioning binding of prefabricated small box girder framework of steel reinforcement genesis analysis muscle as described in claim 1, special
Sign is：The step (8) in tensioning equipment（9）The manual rockbolt tension meter of model ZY-10 type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810696418.9A CN108843024B (en) | 2018-06-29 | 2018-06-29 | Construction method for pretensioning and binding longitudinal distribution ribs of prefabricated small box girder steel reinforcement framework |
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| CN201810696418.9A CN108843024B (en) | 2018-06-29 | 2018-06-29 | Construction method for pretensioning and binding longitudinal distribution ribs of prefabricated small box girder steel reinforcement framework |
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Cited By (2)
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| CN111877768A (en) * | 2020-07-15 | 2020-11-03 | 理工华汇(潍坊)智能机器人有限公司 | Automatic steel bar binding equipment and binding method |
| CN113346412A (en) * | 2021-04-28 | 2021-09-03 | 甘肃路桥建设集团有限公司 | Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof |
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