CN110258342A - A kind of main rope of suspension bridge strand tensioning equipment and method for stretching - Google Patents
A kind of main rope of suspension bridge strand tensioning equipment and method for stretching Download PDFInfo
- Publication number
- CN110258342A CN110258342A CN201910547324.XA CN201910547324A CN110258342A CN 110258342 A CN110258342 A CN 110258342A CN 201910547324 A CN201910547324 A CN 201910547324A CN 110258342 A CN110258342 A CN 110258342A
- Authority
- CN
- China
- Prior art keywords
- strand
- reaction frame
- tensioning
- anchor pole
- jack
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 9
- 238000010276 construction Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 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
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010959 steel Substances 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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
-
- 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
- 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
- E04G21/121—Construction of stressing jacks
Abstract
A kind of main rope of suspension bridge strand tensioning equipment, including strand end, anchor pole, spiral, reaction frame, counter-force nut and jack, strand end is coated in the anchor pole, reaction frame is resisted by jack on the outside of anchor pole, spiral is installed in strand end and is fixed by counter-force nut with reaction frame.The present invention overcomes traditional main rope of suspension bridge strand tensioning equipments to construct under conditions of more narrow, it is likely to that main push-towing rope tensioning technical problem not in place occurs, cooperate jack by using anchor pole, spiral, reaction frame, the strand operation of tensioning main rope of suspension bridge is allowed to construct under conditions of more narrow, and present apparatus structure is simple, scientific and reasonable, reusable convenient for operation, tension structure.
Description
Technical field
The invention belongs to suspension bridge construction field, it is related to a kind of main rope of suspension bridge strand tensioning equipment and method for stretching.
Background technique
Main rope of suspension bridge strand tensioning is an important link of suspension bridge construction, in the condition that construction space is more narrow
Lower construction, it is likely that can be there is a situation where main push-towing rope tensioning be not in place, if tensioning is not in place, main push-towing rope can not just undertake corresponding lotus
It carries, then apparent change will occur for the force structure of entire bridge, and the most significant main structure for showing as Cast-in-situ Beam is opened in advance
Split, steel box-girder downwarp is serious and deck paving premature rupture etc., very negative impact will be generated to bridge deck structure and normal use.
Summary of the invention
It is an object of the invention to provide a kind of main rope of suspension bridge strand tensioning equipment in place of overcome the deficiencies in the prior art
And method for stretching, device volume used by this method is small, and it is easy to operate, it is reusable, solve small space suspension bridge
Main push-towing rope tensioning problem not in place.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of main rope of suspension bridge strand tensioning equipment, including strand end, anchor pole, spiral, reaction frame, counter-force nut
And jack, it is coated with strand end in the anchor pole, reaction frame is resisted by jack on the outside of anchor pole, spiral is installed
It is fixed in strand end and by counter-force nut with reaction frame.
Moreover, the strand end is fixed by backing plate and tensioning nut with anchor pole.
A kind of main rope of suspension bridge strand method for stretching, includes the following steps:
Step 1: strand end is passed through into anchor pole and backing plate；
Step 2: tensioning nut is mounted on strand end；
Step 3: spiral is mounted in strand end；
Step 4: reaction frame being through on spiral, and uses the fixed position of counter-force nut；
Step 5: jack is placed in reaction frame limiting slot；
Step 6: shaking jack, pull out strand end, rotation tensioning nut instructs strand tensioning in place repeatedly
Until；
Step 7: after construction finishes, first unloading jack, the counter-force that comes loose nut removes reaction frame, unloads finish rolling screw thread
Reinforcing bar, recyclable device components.
Advantages of the present invention and economic effect are:
The present invention overcomes traditional main rope of suspension bridge strand tensioning equipments to construct under conditions of more narrow, very may be used
Main push-towing rope tensioning technical problem not in place can occur, cooperate jack by using anchor pole, spiral, reaction frame, can permit
Perhaps tensioning main rope of suspension bridge strand operation is constructed under conditions of more narrow, and present apparatus structure is simple, is convenient for behaviour
Work, tension structure are scientific and reasonable, reusable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of strand tensioning equipment of the present invention；
Fig. 2 is the use state diagram of strand tensioning equipment of the present invention；
Fig. 3 is the structural schematic diagram (broken section) of strand end of the present invention and spiral junction；
Fig. 4 is the structural schematic diagram of reaction frame of the present invention；
In figure: 1-anchor pole；2-backing plates；3-tensioning nuts；4-strand ends；5-spirals；6-reaction frames；7
- counter-force nut；8-jack；9-reaction frame limiting slots.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows.It should be noted that the present embodiment be it is descriptive, be not restrictive, cannot thus limit guarantor of the invention
Protect range.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
A kind of main rope of suspension bridge strand tensioning equipment, including strand end, anchor pole, spiral, reaction frame, counter-force nut
And jack, it is coated with strand end in the anchor pole, reaction frame is resisted by jack on the outside of anchor pole, spiral is installed
It is fixed in strand end and by counter-force nut with reaction frame.
The strand end is fixed by backing plate and tensioning nut with anchor pole.
A kind of main rope of suspension bridge strand method for stretching, includes the following steps:
Step 1: strand end is passed through into anchor pole and backing plate；
Step 2: tensioning nut is mounted on strand end；
Step 3: spiral is mounted in strand end；
Step 4: reaction frame being through on spiral, and uses the fixed position of counter-force nut；
Step 5: jack is placed in reaction frame limiting slot；
Step 6: shaking jack, pull out strand end, rotation tensioning nut instructs strand tensioning in place repeatedly
Until；
Step 7: after construction finishes, first unloading jack, the counter-force that comes loose nut removes reaction frame, unloads finish rolling screw thread
Reinforcing bar, recyclable device components.
Claims (3)
1. a kind of main rope of suspension bridge strand tensioning equipment, including strand end, anchor pole, spiral, reaction frame, counter-force nut with
And jack, it is characterised in that: strand end is coated in the anchor pole, anchor pole outside resists reaction frame, spiral shell by jack
Line reinforcement installation is fixed in strand end and by counter-force nut with reaction frame.
2. a kind of main rope of suspension bridge strand tensioning equipment according to claim 1, it is characterised in that: the strand end is logical
It crosses backing plate and tensioning nut is fixed with anchor pole.
3. a kind of main rope of suspension bridge strand method for stretching, which comprises the steps of:
Step 1: strand end is passed through into anchor pole and backing plate；
Step 2: tensioning nut is mounted on strand end；
Step 3: spiral is mounted in strand end；
Step 4: reaction frame being through on spiral, and uses the fixed position of counter-force nut；
Step 5: jack is placed in reaction frame limiting slot；
Step 6: shaking jack, pull out strand end, rotation tensioning nut, repeatedly, until instructing strand tensioning in place；
Step 7: after construction finishes, jack is first unloaded, the counter-force that comes loose nut removes reaction frame, unloads finish rolling deformed bar,
Recyclable device components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547324.XA CN110258342A (en) | 2019-06-24 | 2019-06-24 | A kind of main rope of suspension bridge strand tensioning equipment and method for stretching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547324.XA CN110258342A (en) | 2019-06-24 | 2019-06-24 | A kind of main rope of suspension bridge strand tensioning equipment and method for stretching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110258342A true CN110258342A (en) | 2019-09-20 |
Family
ID=67920658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547324.XA Pending CN110258342A (en) | 2019-06-24 | 2019-06-24 | A kind of main rope of suspension bridge strand tensioning equipment and method for stretching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110258342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608997A (en) * | 2019-09-29 | 2019-12-24 | 广东工业大学 | FRP muscle tensioning equipment |
| CN110644366A (en) * | 2019-09-06 | 2020-01-03 | 中铁大桥(郑州)缆索有限公司 | Stay cable tensioning device for narrow anchoring space and operation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000004021U (en) * | 1998-07-31 | 2000-02-25 | 박재만 | Retensioning device of prestressed structure |
| CN202116199U (en) * | 2011-05-11 | 2012-01-18 | 中交第二航务工程局有限公司 | Stretch-draw adjusting and anchoring device for steel strand cable of cable crane |
| CN103089018A (en) * | 2013-02-07 | 2013-05-08 | 中冶建工集团有限公司 | Prestress steel structure tension construction method capable of accurately setting up tension force |
| CN205134960U (en) * | 2015-10-26 | 2016-04-06 | 深圳市三鑫幕墙工程有限公司 | Stretching device |
| CN205818149U (en) * | 2016-06-04 | 2016-12-21 | 中铁十九局集团第五工程有限公司 | Prefabricated case beam prestressed stretch-draw jack on-site calibration device |
| CN207331460U (en) * | 2017-08-17 | 2018-05-08 | 郑州大学 | Main cable strand stretching and anchoring device |
| CN208379438U (en) * | 2018-06-07 | 2019-01-15 | 湖南联智桥隧技术有限公司 | Suspension cable entire beam tension equipment |
-
2019
- 2019-06-24 CN CN201910547324.XA patent/CN110258342A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000004021U (en) * | 1998-07-31 | 2000-02-25 | 박재만 | Retensioning device of prestressed structure |
| CN202116199U (en) * | 2011-05-11 | 2012-01-18 | 中交第二航务工程局有限公司 | Stretch-draw adjusting and anchoring device for steel strand cable of cable crane |
| CN103089018A (en) * | 2013-02-07 | 2013-05-08 | 中冶建工集团有限公司 | Prestress steel structure tension construction method capable of accurately setting up tension force |
| CN205134960U (en) * | 2015-10-26 | 2016-04-06 | 深圳市三鑫幕墙工程有限公司 | Stretching device |
| CN205818149U (en) * | 2016-06-04 | 2016-12-21 | 中铁十九局集团第五工程有限公司 | Prefabricated case beam prestressed stretch-draw jack on-site calibration device |
| CN207331460U (en) * | 2017-08-17 | 2018-05-08 | 郑州大学 | Main cable strand stretching and anchoring device |
| CN208379438U (en) * | 2018-06-07 | 2019-01-15 | 湖南联智桥隧技术有限公司 | Suspension cable entire beam tension equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644366A (en) * | 2019-09-06 | 2020-01-03 | 中铁大桥(郑州)缆索有限公司 | Stay cable tensioning device for narrow anchoring space and operation method thereof |
| CN110608997A (en) * | 2019-09-29 | 2019-12-24 | 广东工业大学 | FRP muscle tensioning equipment |
| CN110608997B (en) * | 2019-09-29 | 2022-09-23 | 广东工业大学 | FRP muscle tensioning equipment |
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