CN107869111A - Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method - Google Patents
Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method Download PDFInfo
- Publication number
- CN107869111A CN107869111A CN201610843871.9A CN201610843871A CN107869111A CN 107869111 A CN107869111 A CN 107869111A CN 201610843871 A CN201610843871 A CN 201610843871A CN 107869111 A CN107869111 A CN 107869111A
- Authority
- CN
- China
- Prior art keywords
- tensioning
- vertical prestressing
- prestressing bar
- connecting rod
- prestressed concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000007 visual effect Effects 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and its application method, including lift actuator, vehicle frame and tensioning adjusting means, the lift actuator connecting vehicle frame, the linear displacement up and down of the lift actuator driving tensioning adjusting means；The tensioning adjusting means includes tensioning oil cylinder, support frame, hydraulic spanner, connecting rod and wrench socket, both support frame as described above support tensioning oil cylinders are relatively fixed installation, connecting rod one end connects tensioning oil cylinder, the connecting rod other end is provided with the adapter sleeve for being used for connecting vertical prestressing bar, connecting rod can be driven during tensioning oil cylinder expanding-contracting action, the wrench socket is coaxially disposed with connecting rod, and hydraulic spanner driving wrench socket rotates.
Description
Technical field
The present invention relates to Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method.
Background technology
China Patent Publication No. CN202764001U, tensioning equipment in disclosed annular concrete electric pole prestressing force, including
There are punching leading screw, the tensioning oil cylinder being threadedly coupled successively with the punching leading screw, card nut, tensioning wild card nut, support in tensioning
Pin, tightening nut, tension rod, stretch board, the end plate being also arranged on tension rod, be arranged on the stretch board outer ring steel
Mould, said structure are only capable of realizing the tensioning to vertical prestressing bar, but can not realize fastening positioning, and function is single and structure is answered
It is miscellaneous.
The content of the invention
The purpose of the present invention is to be solve the problems, such as that prior art is present, there is provided one kind can be achieved to vertical prestressing bar
The Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment and application method for tensing and fastening.
The technical solution adopted by the present invention is as follows：Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment, bag
Lift actuator, vehicle frame and tensioning adjusting means, the lift actuator connecting vehicle frame are included, the lift actuator drives tensioning
The linear displacement up and down of adjusting means；The tensioning adjusting means include tensioning oil cylinder, support frame, hydraulic spanner, connecting rod and
Both wrench sockets, support frame as described above support tensioning oil cylinder are relatively fixed installation, connecting rod one end connection tensioning oil cylinder, connecting rod
The other end, which is provided with, is used to connecting the adapter sleeve of vertical prestressing bar, can drive connecting rod during tensioning oil cylinder expanding-contracting action, described to pull
Gloves cylinder is coaxially disposed with connecting rod, and hydraulic spanner driving wrench socket rotates.
Furtherly, the wrench socket is set in connecting rod and/or adapter sleeve periphery.
Furtherly, in addition to it is used for the lifting stabilizing mechanism for stablizing linear displacement above and below tensioning adjusting means, lifting is steady
Determining mechanism includes guide pillars and bushes, and guide pin bushing is set in outside guide pillar, and guide pin bushing is slided along guide pillar, and guide pin bushing is fixedly connected with support frame, is led
Post is fixedly connected with vehicle frame；Also or, guide pin bushing is fixedly connected with vehicle frame, and guide pillar is fixedly connected with support frame.
Furtherly, in addition to it is used for the lifting stabilizing mechanism for stablizing linear displacement above and below tensioning adjusting means, lifting is steady
Determining mechanism includes X-type support and lifting frame, and the relative both sides of lifting frame are equipped with X-type support, and X-type support includes at least two supports
Bar, two struts intersect setting；Wherein one end of a strut is pivotally connected with vehicle frame, and the other end is slidably installed with lifting frame；Another support
One end of bar is slidably installed with vehicle frame, the other end and the lifting frame pivot joint of another strut；Support frame as described above is fixed with lifting frame to be connected
Connect.
Furtherly, the lift actuator is oil cylinder or cylinder or motor.
Furtherly, described lift actuator one end connecting vehicle frame, lift actuator other end connection lifting frame, so as to drive
Dynamic lifting frame drives the lifting of tensioning adjusting means.
Furtherly, the strut and vehicle frame are slidably installed including pulley, and the vehicle frame, lifting frame are respectively equipped with cunning
Groove, the pulley are pivotally connected with strut, and pulley is located at chute interior edge chute and extends to slide.
Furtherly, in addition to wheel, bottom of frame are provided with wheel.
Furtherly, the adapter sleeve is fining twisted steel nut, and adapter sleeve connects with connecting rod, vertical prestressing bar screw thread
Connect.
Furtherly, support frame includes biside plate, upper cross plate and lower cross plate, upper cross plate and lower cross plate in setting up and down, on
There is space spacing, the both ends of upper and lower transverse slat are fixedly connected with biside plate respectively, upper cross plate, lower horizontal stroke between transverse slat and lower cross plate
Through hole is respectively equipped with plate.
The application method of Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment, including prestressed concrete bridge
Working condition during mobile status and tensioning vertical prestressing bar during beam vertical prestressing bar intelligent tensioning equipment displacement；It is mobile
During state, lift actuator driving tensioning adjusting means departs from ground, whole Prestressed Concrete Bridges vertical prestressing bar intelligence
Energy tensioning equipment can be carried out by wheel, carry out to tensioning position, start-up operation state；During working condition, lifting driving
Connecting rod is fixedly connected by device driving support frame contact ground, adapter sleeve with vertical prestressing bar, and tensioning oil cylinder tenses vertical pre-
Stress rib, hydraulic spanner tighten the nut for being threaded in vertical prestressing bar, stop when being screwed to setup parameter, adapter sleeve solution
Except the connection between connecting rod and vertical prestressing bar, lift actuator driving tensioning adjusting means departs from ground, so circulation.
Present invention advantage possessed compared with prior art：The present invention is integrated with tensioning and turns fastening function simultaneously, has
The advantages that functional integrated level is concentrated, and automation mechanized operation degree is high, it is settable to tighten parameter, same standard is realized to cable tensios control
Control.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present invention.
Structural representation when Fig. 2 is 1 mobile status of embodiment of the present invention.
Structural representation when Fig. 3 is 1 working condition of embodiment of the present invention.
Fig. 4 is the structural representation at another visual angles of Fig. 1.
Structural representation when Fig. 5 is 2 mobile status of embodiment of the present invention.
Structural representation when Fig. 6 is 2 working condition of embodiment of the present invention.
Fig. 7 is the structural representation of embodiment 2 of the present invention.
Fig. 8 is the structural representation of tensioning adjusting means of the present invention.
Fig. 9 is Fig. 8 A-A cross section structure diagrams.
Figure 10 is the structural representation of support frame of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
As shown in Figures 1 to 4, Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment described in the present embodiment,
Including the vehicle frame 2 of lift actuator 1 and tensioning adjusting means 3, one end connecting vehicle frame 2 of the lift actuator 1, lift actuator
1 telescopic end connection tensioning adjusting means 3, the lift actuator 1 drives the linear displacement up and down of tensioning adjusting means 3.
The tensioning adjusting means 3 as shown in Fig. 8 to Fig. 9 includes tensioning oil cylinder 31, support frame 32, hydraulic spanner 33, company
Extension bar 34 and wrench socket 35, support frame as described above 32 supports tensioning oil cylinder 31, and both are relatively fixed installation, and the one end of connecting rod 34 connects
Tensioning oil cylinder 31 is connect, the other end of connecting rod 34 is provided with the adapter sleeve 36 for being used for connecting vertical prestressing bar 6, and tensioning oil cylinder 31 is flexible
Connecting rod 34 can be driven during action, the wrench socket 35 is coaxially disposed with connecting rod 34, and wrench socket 35 is set in connecting rod
34 or adapter sleeve 36 outside, the hydraulic spanner 33 drives wrench socket 35 to rotate.The telescopic end connection support frame of lift actuator 1
32, tensioning oil cylinder 31, hydraulic spanner 33 are fixedly mounted with support frame 32 and with the liftings of support frame 32 1 respectively.
As shown in Figure 10, the present embodiment support frame as described above 32 includes two side plates 321, upper cross plate 322 and lower cross plate 323,
Upper cross plate 322 and lower cross plate 323 are in setting up and down, have space spacing, upper and lower transverse slat between upper cross plate 322 and lower cross plate 323
322nd, 323 both ends are fixedly connected with biside plate 321 respectively, and through hole 320 is respectively equipped with upper cross plate 322, lower cross plate 323.Liquid
Pressure spanner 33 is arranged between upper cross plate 322 and lower cross plate 323, and support frame 32 is relatively fixed installation with hydraulic spanner 33；Connection
Adapter sleeve 36 is connected after the penetrated through via holes 320 of bar 34, wrench socket 35 is located at the periphery of adapter sleeve 36.Wrench socket described in the present embodiment
35 are set in connecting rod 34 and/or the periphery of adapter sleeve 36.
As shown in Figures 1 to 4, also include being used to stablize tensioning adjusting means linear displacement about 3 described in the present embodiment
Stabilizing mechanism is lifted, lifting stabilizing mechanism includes guide pillar 41 and guide pin bushing 42, and guide pin bushing 42 is set in outside guide pillar 41, and guide pin bushing 42 is along guide pillar
41 are slided, and guide pin bushing 42 is fixedly connected with support frame 32, and guide pillar 41 is fixedly connected with vehicle frame 2；Also or, guide pin bushing 42 is fixed with vehicle frame 2
Connection, guide pillar 41 are fixedly connected with support frame 32.The lifting stabilizing mechanism is 4, is symmetric, and lifting stabilizing mechanism can
The linear displacement up and down of stable tensioning adjusting means 3, the structure have the advantages that simple in construction, stable.
Lift actuator 1 described in the present embodiment is oil cylinder or cylinder or motor.
As shown in Figures 1 to 4, the present embodiment also includes wheel 5, and the bottom of vehicle frame 2 is provided with wheel 5.Wheel 5 is installed
Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment is easy to remove.
Adapter sleeve 36 described in the present embodiment is fining twisted steel nut.
Embodiment 2
As shown in Figures 5 to 9, Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment described in the present embodiment,
Including lift actuator 1, vehicle frame 2 and tensioning adjusting means 3, the connecting vehicle frame 2 of lift actuator 1, the lift actuator 1
Drive the linear displacement up and down of tensioning adjusting means 3；The tensioning adjusting means 3 includes tensioning oil cylinder 31, support frame 32, hydraulic pressure
Spanner 33, connecting rod 34 and wrench socket 35, support frame as described above 32 supports tensioning oil cylinder 31, and both are relatively fixed installation, connecting rod
The expansion link of 34 one end connection tensioning oil cylinder 31, the other end of connecting rod 34 are provided with the adapter sleeve for being used for connecting vertical prestressing bar 6
36, connecting rod 34 can be driven during tensioning 31 expanding-contracting action of oil cylinder, the wrench socket 35 is coaxially disposed with connecting rod 34, and hydraulic pressure is pulled
Hand 33 is relatively fixed installation with support frame 32, and hydraulic spanner 33 drives wrench socket 35 to rotate.
As shown in Figure 10, the present embodiment support frame as described above 32 includes two side plates 321, upper cross plate 322 and lower cross plate 323,
Upper cross plate 322 and lower cross plate 323 are in setting up and down, have space spacing, upper and lower transverse slat between upper cross plate 322 and lower cross plate 323
323 both ends are fixedly connected with biside plate 321 respectively, and through hole 320 is respectively equipped with upper cross plate 322, lower cross plate 323.
Wrench socket 35 described in the present embodiment is set in connecting rod 34 and/or the periphery of adapter sleeve 36.
As shown in Figures 5 to 7, the present embodiment also includes being used for the lifting for stablizing tensioning adjusting means linear displacement about 3
Stabilizing mechanism, lifting stabilizing mechanism include X-type support 45 and lifting frame 46, and the relative both sides of lifting frame 46 are equipped with X-type support
45, X-type support 45 includes at least two struts 451, and two struts 451 intersect setting；Wherein one end of a strut 451 and vehicle frame
2 pivot joints, the other end are slidably installed with lifting frame 46；One end of another strut 451 is slidably installed with vehicle frame 2, another strut 451
The other end is pivotally connected with lifting frame 46；Support frame as described above 32 is fixedly connected with lifting frame 46.The lifting stabilizing mechanism is 4, is in
Symmetrical, lifting stabilizing mechanism can stablize the linear displacement up and down of tensioning adjusting means 3.The Standard is simple, during operation
It is sliding friction between part, coefficient of friction is small, good endurance, stable and reliable operation.It is larger to lift the erection space of frame 46, just
In the assembling of tensioning adjusting means 3.
Lift actuator 1 described in the present embodiment is oil cylinder or cylinder or motor.
One end connecting vehicle frame 2 of lift actuator 1 described in the present embodiment, the other end of lift actuator 1 connection lifting frame 46, from
And lifting frame 46 is driven to drive tensioning adjusting means 3 to lift.
Strut 451 described in the present embodiment is distinguished with being slidably installed for vehicle frame 2 including pulley 47, the vehicle frame 2, lifting frame 46
Provided with chute 48, the pulley 47 is pivotally connected with strut 451, and pulley 47 is located at the interior edge chute 48 of chute 48 and extends to slide.
As shown in Figures 5 to 7, the present embodiment also includes wheel 5, and the bottom of vehicle frame 2 is provided with wheel 5.
Adapter sleeve 36 described in the present embodiment is fining twisted steel nut.
Embodiment 3
The application method of Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment described in the present embodiment, including it is pre-
During mobile status and tensioning vertical prestressing bar 6 during prestressed concrete bridge vertical prestressing bar intelligent tensioning equipment displacement
Working condition；During mobile status, lift actuator 1 drives tensioning adjusting means 3 to depart from ground, whole Prestressed Concrete Bridges
Vertical prestressing bar intelligent tensioning equipment can be carried out by wheel 5, carry out to tensioning position, start-up operation state；Work
During state, lift actuator 1 drives support frame 32 to contact ground, and adapter sleeve 36 fixes connecting rod 34 and vertical prestressing bar 6
Connection, tensioning oil cylinder 31 tense vertical prestressing bar 6, when tensioning oil cylinder 31 is stretched to parameter preset, the tensioning of tensioning oil cylinder 31
Control can detect oil cylinder working-pressure by hydralic pressure gauge, and when hydralic pressure gauge reaches parameter preset, tensioning oil cylinder 31 stops tensioning, hydraulic pressure
Spanner 33 tightens the nut 7 for being threaded in vertical prestressing bar 6, stops when being screwed to setup parameter, and adapter sleeve 36, which releases, to be connected
Connection between extension bar 34 and vertical prestressing bar 6, lift actuator 1 drive tensioning adjusting means 3 to depart from ground, so followed
Ring.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (11)
1. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment, it is characterized in that：Including lift actuator, vehicle frame and
Tensioning adjusting means, the lift actuator connecting vehicle frame, the upper lower linear of the lift actuator driving tensioning adjusting means
Displacement；The tensioning adjusting means includes tensioning oil cylinder, support frame, hydraulic spanner, connecting rod and wrench socket, support frame as described above
Both support tensioning oil cylinders are relatively fixed installation, and connecting rod one end connection tensioning oil cylinder, the connecting rod other end, which is provided with, to be used to connect
The adapter sleeve of vertical prestressing bar, connecting rod can be driven during tensioning oil cylinder expanding-contracting action, the wrench socket and connecting rod are coaxial
Set, hydraulic spanner driving wrench socket rotates.
2. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as claimed in claim 1, it is characterized in that：It is described
Wrench socket is set in connecting rod and/or adapter sleeve periphery.
3. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as claimed in claim 1, it is characterized in that：Also wrap
The lifting stabilizing mechanism for stablizing linear displacement above and below tensioning adjusting means is included, lifting stabilizing mechanism includes guide pillars and bushes,
Guide pin bushing is set in outside guide pillar, and guide pin bushing slides along guide pillar, and guide pin bushing is fixedly connected with support frame, and guide pillar is fixedly connected with vehicle frame；Also or,
Guide pin bushing is fixedly connected with vehicle frame, and guide pillar is fixedly connected with support frame.
4. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as claimed in claim 1, it is characterized in that：Also wrap
The lifting stabilizing mechanism for stablizing linear displacement above and below tensioning adjusting means is included, lifting stabilizing mechanism includes X-type support and liter
Frame drops, and the relative both sides of lifting frame are equipped with X-type support, and X-type support includes at least two struts, and two struts intersect setting；
Wherein one end of a strut is pivotally connected with vehicle frame, and the other end is slidably installed with lifting frame；One end of another strut is slided with vehicle frame pacifies
Dress, the other end and the lifting frame pivot joint of another strut；Support frame as described above is fixedly connected with lifting frame.
5. the Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as described in claim 3 or 4, it is characterized in that：
The lift actuator is oil cylinder or cylinder or motor.
6. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as claimed in claim 4, it is characterized in that：It is described
Lift actuator one end connecting vehicle frame, lift actuator other end connection lifting frame, so as to drive lifting frame to drive tensioning regulation
Device lifts.
7. Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment as claimed in claim 4, it is characterized in that：It is described
Strut and vehicle frame are slidably installed including pulley, and the vehicle frame, lifting frame are respectively equipped with chute, and the pulley is pivotally connected with strut,
Pulley is located at chute interior edge chute and extends to slide.
8. the Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning as described in claim 1 to 7 any claim is set
It is standby, it is characterized in that：Also include wheel, bottom of frame is provided with wheel.
9. the Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning as described in claim 1 to 7 any claim is set
It is standby, it is characterized in that：The adapter sleeve is sleeve nut, and adapter sleeve is threadedly coupled with connecting rod, vertical prestressing bar.
10. the Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning as described in claim 1 to 7 any claim is set
Standby, support frame includes biside plate, upper cross plate and lower cross plate, upper cross plate and lower cross plate in setting up and down, upper cross plate and lower cross plate it
Between there is space spacing, the both ends of upper and lower transverse slat are fixedly connected with biside plate, are respectively equipped with upper cross plate, lower cross plate logical respectively
Hole.
11. the application method of Prestressed Concrete Bridges vertical prestressing bar intelligent tensioning equipment, it is characterized in that：Including prestressing force
Work during mobile status and tensioning vertical prestressing bar during concrete-bridge vertical prestressing bar intelligent tensioning equipment displacement
State；During mobile status, lift actuator driving tensioning adjusting means departs from ground, and whole Prestressed Concrete Bridges are vertically pre-
Stress rib intelligent tensioning equipment can be carried out by wheel, carry out to tensioning position, start-up operation state；During working condition,
Connecting rod is fixedly connected by lift actuator driving support frame contact ground, adapter sleeve with vertical prestressing bar, and tensioning oil cylinder is drawn
Tight vertical prestressing bar, hydraulic spanner tighten the nut for being threaded in vertical prestressing bar, stop when being screwed to setup parameter,
Adapter sleeve releases the connection between connecting rod and vertical prestressing bar, and lift actuator driving tensioning adjusting means departs from ground,
So circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843871.9A CN107869111B (en) | 2016-09-23 | 2016-09-23 | Intelligent tensioning equipment for vertical prestressed tendons of prestressed concrete bridge and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843871.9A CN107869111B (en) | 2016-09-23 | 2016-09-23 | Intelligent tensioning equipment for vertical prestressed tendons of prestressed concrete bridge and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107869111A true CN107869111A (en) | 2018-04-03 |
| CN107869111B CN107869111B (en) | 2023-07-21 |
Family
ID=61751107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610843871.9A Active CN107869111B (en) | 2016-09-23 | 2016-09-23 | Intelligent tensioning equipment for vertical prestressed tendons of prestressed concrete bridge and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869111B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457623A (en) * | 2018-12-25 | 2019-03-12 | 中铁四局集团第四工程有限公司 | A kind of clamp device of electric-controlled type vertical prestressing nut |
| CN110005251A (en) * | 2019-03-22 | 2019-07-12 | 知亦达知识产权(深圳)有限公司 | A kind of prestressing force jacking-drawing device of controllable stretching force size |
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| CN102182146A (en) * | 2011-03-29 | 2011-09-14 | 中国铁道科学研究院铁道建筑研究所 | Prestress rib tensioning equipment, system and method and concrete continuous box girder |
| CN202090290U (en) * | 2011-05-20 | 2011-12-28 | 中国十九冶集团有限公司 | Tool for tensioning prestressing steel bar |
| CN203097301U (en) * | 2013-01-15 | 2013-07-31 | 柳州欧维姆机械股份有限公司 | Prestressed tendon tensioning pre-tensioning device |
| CN103738875A (en) * | 2013-12-30 | 2014-04-23 | 柳州欧维姆机械股份有限公司 | Tensioning jack with tightening device and tensioning construction method of tensioning jack |
| CN205295958U (en) * | 2016-01-20 | 2016-06-08 | 赵兰聘 | Novel prestressing force stretch -draw support |
-
2016
- 2016-09-23 CN CN201610843871.9A patent/CN107869111B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182146A (en) * | 2011-03-29 | 2011-09-14 | 中国铁道科学研究院铁道建筑研究所 | Prestress rib tensioning equipment, system and method and concrete continuous box girder |
| CN202090290U (en) * | 2011-05-20 | 2011-12-28 | 中国十九冶集团有限公司 | Tool for tensioning prestressing steel bar |
| CN203097301U (en) * | 2013-01-15 | 2013-07-31 | 柳州欧维姆机械股份有限公司 | Prestressed tendon tensioning pre-tensioning device |
| CN103738875A (en) * | 2013-12-30 | 2014-04-23 | 柳州欧维姆机械股份有限公司 | Tensioning jack with tightening device and tensioning construction method of tensioning jack |
| CN205295958U (en) * | 2016-01-20 | 2016-06-08 | 赵兰聘 | Novel prestressing force stretch -draw support |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457623A (en) * | 2018-12-25 | 2019-03-12 | 中铁四局集团第四工程有限公司 | A kind of clamp device of electric-controlled type vertical prestressing nut |
| CN110005251A (en) * | 2019-03-22 | 2019-07-12 | 知亦达知识产权(深圳)有限公司 | A kind of prestressing force jacking-drawing device of controllable stretching force size |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107869111B (en) | 2023-07-21 |
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