CN105155420B - Integral tensioning system for pre-tensioning prefabricated beam slab - Google Patents
Integral tensioning system for pre-tensioning prefabricated beam slab Download PDFInfo
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- CN105155420B CN105155420B CN201510545305.5A CN201510545305A CN105155420B CN 105155420 B CN105155420 B CN 105155420B CN 201510545305 A CN201510545305 A CN 201510545305A CN 105155420 B CN105155420 B CN 105155420B
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- gooseneck
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- brace rod
- anchoring
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 238000004873 anchoring Methods 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 244000261422 Lysimachia clethroides Species 0.000 claims description 60
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000000686 essence Substances 0.000 description 36
- 238000010276 construction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
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Abstract
The invention belongs to a pre-tensioning method precast beam slab integral tensioning system which consists of a pedestal, a steel strand, a jack and a tensioning oil pump and comprises a middle structure, a left side structure and a right side structure. The pedestal of the middle structure is arranged between two L-shaped butted force transmission columns, a steel hinge line for preparing a pre-tensioning method precast beam plate is arranged on the pedestal, and the steel cross beam at the anchoring end and the steel cross beam at the tensioning end are respectively positioned at the outer ends of two sides of the force transmission columns. And a steel plate is arranged between the steel beam at the anchoring end of the left side structure and the side surface of the force transmission column at the corresponding side, and one end of each fine-rolled threaded connecting rod, which is provided with anchoring limiting steel and is positioned at the end of the anchoring limiting steel plate, of the outer side surface of the steel beam at the anchoring end penetrates through each through hole on the anchoring limiting steel plate to be connected with each nut. The other end of each fine-rolling threaded connecting rod penetrates through the steel beam of the anchoring end to be positioned outside the pedestal, and an anchoring end connector is arranged on the steel beam of the anchoring end. The invention has the advantages of simple and practical structure, good efficiency and quality, low production cost, safe use and good use effect.
Description
Technical field
The invention belongs to a kind of pre-tensioning system precast beam integral tension system.
Background technology
At present, in highway in China bridge construction, pretensioned prestressed hollow slab beam, with its low cost, builds whole height
Low, safety and durability, can be with factorial praluction, simple structure is light and handy, is used widely the advantages of easy construction.Actual
The preparation of substantial amounts of pretensioned prestressed hollow slab beam in construction is all carried out prefabricated using tower structure, carries out integral tension,
Its advantage is once to produce multi-disc beam slab, steady quality, can accelerate bridge construction progress, and construction technology is through for many years also increasingly
Ripe.But, steel hinge line is directly anchored at gooseneck both sides and carries out tensioning, the steel hinge line after one side tensioning can not repeat profit
With causing a large amount of wastes of steel hinge line；Another aspect tool clamping piece often flies out and causes security incident to happen occasionally, also simultaneously
It is difficult to ensure that the efficiency of pre-tensioning system precast beam integral tension and quality.
Content of the invention
It is an object of the invention to provide a kind of pre-tensioning system precast beam integral tension system, have simple and practical, effect
Rate and quality are good, low production cost, using the good advantage of safety and using effect.
For this reason, the present invention is made up of pedestal, steel hinge line, jack and stretching oil pump, pre-tensioning system precast beam is integrally opened
Pull system includes central structure, left side structure and right side structure：
Central structure, pedestal is arranged in the middle of the force-transmitting pole of two L-shaped docking, and it is prefabricated that pedestal is provided with preparation pre-tensioning system
The steel hinge line of beam slab, anchored end gooseneck and stretching end gooseneck are located at the both sides outer end of force-transmitting pole respectively；
Left side structure, is provided with steel plate, anchored end gooseneck between the side of the force-transmitting pole of anchored end gooseneck and respective side
Lateral surface be provided with anchoring spacing steel plate, anchor spacing steel plate on correspondence each essence prick whorl brace rod position be provided with for each essence prick spiral shell
The perforation that stricture of vagina connecting rod passes through, the one end pricking whorl brace rod positioned at each essence anchoring spacing steel plate end passes through and anchors spacing steel plate
On each perforation be connected with respective nut, each essence prick whorl brace rod the other end pass through anchored end gooseneck be located at pedestal outside
Side and which is provided with anchoring terminal adapter, the termination that essence pricks whorl brace rod is correspondingly arranged with the termination of the steel hinge line of corresponding end；
Right side structure, is provided with steel plate, stretching end gooseneck between the side of the force-transmitting pole of stretching end gooseneck and respective side
Lateral surface be provided with the first spacing steel plate, on the first spacing steel plate, each first essence of correspondence is pricked whorl brace rod position and is provided with for each the
One essence pricks the perforation that whorl brace rod passes through, and one end that each first essence positioned at the first spacing steel plate end pricks whorl brace rod passes through
Each perforation on first spacing steel plate is connected with respective first attaching nut, and the other end that each first essence pricks whorl brace rod is worn
Cross stretching end gooseneck to be located at outside pedestal and which is provided with the first adapter, each first attaching nut passes through respective second even
Connect device and connect one end that each second essence pricks whorl brace rod, the other end that each second essence pricks whorl brace rod is placed through the first limit
Each corresponding perforation on movable gooseneck and the second spacing steel plate outside the steel plate of position is connected with the second attaching nut, movable gooseneck
It is located on track with the lower end of the second spacing steel plate, set between the both ends of the both ends of movable gooseneck and stretching end gooseneck
There is the jack being controlled by stretching oil pump.
It is provided with equal power steel plate between described jack and the movable gooseneck holding.Described force-transmitting pole is L-shaped.
Described anchored end gooseneck, stretching end gooseneck, movable gooseneck and pedestal centrage are located along the same line.
Described track is parallel with force-transmitting pole, axis.In the described centrage of anchored end gooseneck, stretching end gooseneck
Heart line, the centrage of movable gooseneck, the centrage of steel hinge line, the centrage of anchoring terminal adapter, essence prick whorl brace rod and
First, second essence pricks the centrage of centrage, the centrage of jack and first, second adapter of whorl brace rod, anchoring
The centrage of the centrage of spacing steel plate and first, second spacing steel plate is all at grade.Described essence is pricked threaded
The radical that bar, the first essence bundle whorl brace rod, the second essence prick whorl brace rod is identical with the radical of steel hinge line
Said structure has reached the purpose of the present invention.
The present invention have simple and practical, efficiency and quality good, low production cost, good using safety and using effect
Advantage.Produce the cost savings 30% of pre-tensioning system precast beam according to the measuring and calculating present invention compared with legacy equipment, efficiency and quality are superior to
Legacy equipment, safe and reliable.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of side of the present invention.
Specific embodiment
As depicted in figs. 1 and 2, a kind of pre-tensioning system precast beam integral tension system, by pedestal 2, steel hinge line 3, jack
19 and stretching oil pump 20 formed.Pre-tensioning system precast beam integral tension system includes central structure, left side structure and right side knot
Structure：
Central structure, pedestal is arranged in the middle of the force-transmitting pole 1 of two L-shaped docking.It is pre- that pedestal is provided with preparation pre-tensioning system
The steel hinge line of beam slab processed.Anchored end gooseneck 13 and stretching end gooseneck 14 are respectively positioned at the both sides outer end of force-transmitting pole.
Left side structure, is provided with steel plate 21, the work of steel plate between the side of the force-transmitting pole of anchored end gooseneck 13 and respective side
With being uniform conductive power.The lateral surface of anchored end gooseneck is provided with the spacing steel plate 16 of anchoring, is the thick steel plate of 2cm.Anchoring limit
On the steel plate of position, each essence corresponding to the side is pricked whorl brace rod 10 position and is provided with the perforation passing through for each essence bundle whorl brace rod.It is located at
The each essence anchoring spacing steel plate end pricks one end of whorl brace rod through each perforation anchoring on spacing steel plate and respective nut 6
Connect.The other end that each essence pricks whorl brace rod passes through anchored end gooseneck to be located at outside pedestal and which is provided with anchored end connection
Device 4.The termination that essence pricks whorl brace rod is correspondingly arranged with the termination of the steel hinge line of corresponding end.
Right side structure, is provided with steel plate 22, the work of steel plate between the side of the force-transmitting pole of stretching end gooseneck 14 and respective side
With being uniform conductive power.The lateral surface of stretching end gooseneck is provided with the first spacing steel plate 17.Corresponding each on first spacing steel plate
First essence is pricked whorl brace rod 11 position and is provided with the perforation passing through for each first essence bundle whorl brace rod.Positioned at the first spacing steel plate
One end that each first essence at end pricks whorl brace rod passes through each perforation and respective first attaching nut on the first spacing steel plate
Connect 7, the other end that each first essence pricks whorl brace rod passes through stretching end gooseneck to be located at outside pedestal and which is provided with first
Adapter 5.Each first attaching nut connects, by respective second adapter 8, one end that each second essence pricks whorl brace rod 12,
The other end that each second essence pricks whorl brace rod is placed through the movable gooseneck 15 outside the first spacing steel plate and the second spacing steel
Each corresponding perforation on plate 18 is connected with the second attaching nut 9.The lower end of movable gooseneck and the second spacing steel plate is located at track
On 24.It is provided with the jack being controlled by stretching oil pump 20 between the both ends of the both ends of movable gooseneck and stretching end gooseneck
19.First, second spacing steel plate is the thick steel plate of 2cm.First essence pricks the termination of whorl brace rod and the steel hinge line of corresponding end
Termination is correspondingly arranged.
It is provided with equal power steel plate 23, so that uniform conductive power between described jack and the movable gooseneck holding.
Described force-transmitting pole is L-shaped, assembly can be facilitated to enclose and be located at pedestal periphery.
Described anchored end gooseneck, stretching end gooseneck, movable gooseneck and pedestal centrage are located along the same line.
Described track is parallel with force-transmitting pole, axis.In the described centrage of anchored end gooseneck, stretching end gooseneck
Heart line, the centrage of movable gooseneck, the centrage of steel hinge line, the centrage of anchoring terminal adapter, essence prick whorl brace rod and
First, second essence pricks the centrage of centrage, the centrage of jack and first, second adapter of whorl brace rod, anchoring
The centrage of the centrage of spacing steel plate and first, second spacing steel plate is all at grade.Described essence is pricked threaded
The radical that bar, the first essence bundle whorl brace rod, the second essence prick whorl brace rod is identical with the radical of steel hinge line
During use, it is connected with the left side termination of each steel hinge line on pedestal one by one with each anchoring terminal adapter, uses
First adapter is connected with the right side termination of each steel hinge line on pedestal one by one.Tighten each nut, first, second connection
Nut, can additionally use small-sized centre-hole jack and withstand at stretching end gooseneck, one by one to single tendon stretch steel strand wires applying power
To its primary stress, after control stress for prestressing is stable, then anchor good corresponding first attaching nut one by one.Connect first,
Two essences prick whorl brace rod and the second attaching nut.Start stretching oil pump, jack is by movable gooseneck and the second spacing steel plate
And second attaching nut ejection, drive second essence prick whorl brace rod, first essence prick whorl brace rod to steel strand wires applying power,
It is pulled to maximum proof stress, after holding lotus 5min, tighten each first attaching nut 7.The then beam slab concreting on pedestal
Afterwards, when being not less than 7 days 80% and age that concrete strength is not less than design strength grade point, you can put and open.Jack is delayed
Slow gradation oil return is to zero.Repeat above action, lower groove cored slab construction can be carried out.
In a word, the present invention have simple and practical, efficiency and quality good, low production cost, using safety and using effect
Really good advantage.
Claims (6)
1. a kind of pre-tensioning system precast beam integral tension system, is made up of pedestal, steel hinge line, jack and stretching oil pump, its
It is characterised by：Pre-tensioning system precast beam integral tension system includes central structure, left side structure and right side structure,
Central structure, pedestal is arranged in the middle of the force-transmitting pole of two L-shaped docking, and pedestal is provided with preparation pre-tensioning system precast beam
Steel hinge line, anchored end gooseneck and stretching end gooseneck are located at the both sides outer end of force-transmitting pole respectively；
Left side structure, is provided with steel plate, outside anchored end gooseneck between the side of the force-transmitting pole of anchored end gooseneck and respective side
Side is provided with the spacing steel plate of anchoring, and on the spacing steel plate of anchoring, each essence of correspondence is pricked whorl brace rod position and is provided with for each essence bundle screw thread even
The perforation that extension bar passes through, the one end pricking whorl brace rod positioned at each essence anchoring spacing steel plate end passes through and anchors on spacing steel plate
Each perforation is connected with respective nut, each essence prick the other end of whorl brace rod through anchored end gooseneck outside pedestal and
Which is provided with anchoring terminal adapter, the termination that essence pricks whorl brace rod is correspondingly arranged with the termination of the steel hinge line of corresponding end；
Right side structure, is provided with steel plate, outside stretching end gooseneck between the side of the force-transmitting pole of stretching end gooseneck and respective side
Side is provided with the first spacing steel plate, and on the first spacing steel plate, each first essence of correspondence is pricked whorl brace rod position and is provided with for each first essence
Prick the perforation that whorl brace rod passes through, one end that each first essence positioned at the first spacing steel plate end pricks whorl brace rod passes through first
Each perforation on spacing steel plate is connected with respective first attaching nut, and the other end that each first essence pricks whorl brace rod passes through to be opened
Pull end gooseneck is located at outside pedestal and which is provided with the first adapter, and each first attaching nut passes through respective second adapter
Connect one end that each second essence pricks whorl brace rod, the other end that each second essence pricks whorl brace rod is placed through the first spacing steel
Each corresponding perforation on movable gooseneck outside plate and the second spacing steel plate is connected with the second attaching nut, movable gooseneck and the
The lower end of two spacing steel plates be located at track on, be provided between the both ends of the both ends of movable gooseneck and stretching end gooseneck by
The jack that stretching oil pump controls.
2. a kind of pre-tensioning system precast beam integral tension system according to claim 1 it is characterised in that：Described is very heavy
It is provided with equal power steel plate between top and the movable gooseneck holding.
3. a kind of pre-tensioning system precast beam integral tension system according to claim 1 it is characterised in that：Described anchoring
End gooseneck, stretching end gooseneck, movable gooseneck and pedestal centrage are located along the same line.
4. a kind of pre-tensioning system precast beam integral tension system according to claim 1 it is characterised in that：Described track
Parallel with force-transmitting pole, axis.
5. a kind of pre-tensioning system precast beam integral tension system according to claim 1 it is characterised in that：Described anchoring
The centrage of end gooseneck, the centrage of stretching end gooseneck, the centrage of movable gooseneck, the centrage of steel hinge line, anchoring
The centrage of terminal adapter, essence prick whorl brace rod and first, second essence pricks the centrage of whorl brace rod, the center of jack
The centrage of the centrage of line and first, second adapter, the centrage anchoring spacing steel plate and first, second spacing steel plate is equal
At grade.
6. a kind of pre-tensioning system precast beam integral tension system according to claim 1 it is characterised in that：Described essence bundle
The radical that whorl brace rod, the first essence bundle whorl brace rod, the second essence prick whorl brace rod is identical with the radical of steel hinge line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545305.5A CN105155420B (en) | 2015-08-31 | 2015-08-31 | Integral tensioning system for pre-tensioning prefabricated beam slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545305.5A CN105155420B (en) | 2015-08-31 | 2015-08-31 | Integral tensioning system for pre-tensioning prefabricated beam slab |
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| Publication Number | Publication Date |
|---|---|
| CN105155420A CN105155420A (en) | 2015-12-16 |
| CN105155420B true CN105155420B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510545305.5A Active CN105155420B (en) | 2015-08-31 | 2015-08-31 | Integral tensioning system for pre-tensioning prefabricated beam slab |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029582B (en) * | 2019-05-16 | 2024-06-11 | 中铁十五局集团第一工程有限公司 | Device and method for synchronous tensioning of double suspenders of tied-arch bridge |
| CN111456449A (en) * | 2020-04-16 | 2020-07-28 | 中建四局第六建设有限公司 | Construction device and method for guaranteeing uniform stress of each bundle of steel strands through beam body post-tensioning method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747074A (en) * | 1995-02-02 | 1998-05-05 | Ollendick; David P. | Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like |
| JP5164004B2 (en) * | 2008-05-19 | 2013-03-13 | 株式会社ピーエス三菱 | Manufacturing method of pretension PC member |
| CN203284732U (en) * | 2013-04-28 | 2013-11-13 | 中交第三公路工程局有限公司 | Pre-tensioning plate girder track movable steel beam integral tensioning device |
| CN204183710U (en) * | 2014-10-15 | 2015-03-04 | 中交四航局第二工程有限公司 | A kind of pre-tensioning system makes the stretching bed seat of prestressed girder |
| CN204339983U (en) * | 2014-12-08 | 2015-05-20 | 中国十七冶集团有限公司 | Pre-tensioning system precast plate girder rod-pulling type integral tension device |
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| CN105155420A (en) | 2015-12-16 |
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