CN106149575A - Prestress rope tensioning system and method - Google Patents
Prestress rope tensioning system and method Download PDFInfo
- Publication number
- CN106149575A CN106149575A CN201610700587.6A CN201610700587A CN106149575A CN 106149575 A CN106149575 A CN 106149575A CN 201610700587 A CN201610700587 A CN 201610700587A CN 106149575 A CN106149575 A CN 106149575A
- Authority
- CN
- China
- Prior art keywords
- stretch
- draw
- steel wire
- anchor slab
- bar
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0237—Increasing or restoring the load-bearing capacity of building construction elements of storey floors
Abstract
The invention discloses a kind of prestress rope tensioning system, including the anchor slab being fixed in architecture to be reinforced by bar planting, anchor slab side is provided with stretch-draw support；Also including the many main thread bars being parallel to each other, main thread bar one end connects screw shell, screw shell connecting steel wire ropes；After the main thread bar other end passes the perforate being located on anchor slab, fixed by anchoring nut, and branch sleeve is set in its end, branch sleeve auxiliary connection threaded rod one end, the deputy thread bar other end passes stretch-draw support, and is fixed on stretch-draw stent outer by tensioning nut；It is additionally provided with force transducer between tensioning nut and stretch-draw support.Many steel wire ropes can be anchored by one piece of anchor slab, substantially increase the reinforcing efficiency to existing structure and effect.
Description
Technical field
The present invention relates to civil engineering field, specifically a kind of prestress rope tensioning system and method.
Background technology
Due to material aging, construction quality, nature or the impact of the factor such as artificial, existing a lot of bridge houses cored slab
Structure is anxious to be repaired and reinforces, and countries in the world will expend huge fund every year for this.Existing structure reinforcement technique mainly has increase to cut
Face method, reinforcement by sticking of sheets, stickup fibrous composite method for strengthening, setting support method for strengthening, steel strand wires mesh sheet-polymer mortar add
Gu method etc..Existing reinforcement means is primarily present problems with: there is Stress resort effect between (1) reinforcement material and original component,
Cooperation ability is poor, largely effects on consolidation effect；(2) reinforcement material end anchorage length is inadequate, easily finds anchored end
Stripping damage, it is impossible to give full play to the strength of materials；(3) increase the sectional dimension of original component, increase deadweight, impact sight and
Use.And prestress rope reinforcement technique is a kind of extraordinary reinforcement technique, there is actively reinforcing, unstressed delayed effect
Answer, nothing is peeled off problem, and is not increased the sectional dimension of original component.But the stretch-draw of existing prestress rope reinforcement technique fills
Put not mature enough with method, exist in engineer applied and use inconvenience, installation difficulty, the problem of inefficiency.Therefore, one it is badly in need of
Plant new prestress rope tensioning system and method to solve the problems referred to above.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of prestress rope stretch-draw
System and method.
Technical scheme: for solving above-mentioned technical problem, a kind of prestress rope tensioning system of the present invention, including passing through
The anchor slab in architecture to be reinforced is fixed in bar planting, and anchor slab side is provided with stretch-draw support；Also include that many pieces are parallel to each other
Main thread bar, main thread bar one end connects screw shell, screw shell connecting steel wire ropes；The main thread bar other end is through being located at anchor
After perforate on plate, fixed by anchoring nut, and branch sleeve is set in its end, branch sleeve auxiliary connection threaded rod one
End, the deputy thread bar other end passes stretch-draw support, and is fixed on stretch-draw stent outer by tensioning nut；Tensioning nut with
Draw and between support, be additionally provided with force transducer.
Wherein, screw shell one end has longitudinal inner thread hole, and the other end has horizontal unthreaded hole, longitudinal inner thread hole
For being connected with threaded rod, horizontal unthreaded hole is used for connecting steel wire ropes.
Wherein, after the horizontal unthreaded hole that steel wire penetrating is located on screw shell, its end is extruded anchor head anchoring.
A kind of prestress rope method for stretching, comprises the following steps:
(1) treating to punch in ruggedized construction relevant position, bar planting is being installed；
(2) anchor slab is fixed on by bar planting treats in ruggedized construction；
(3) steel wire rope is after the perforate walking around screw shell, with extruding anchor head anchoring；
(4), after main thread bar is passed the perforate of anchor slab, in the female thread of precession screw shell, and fix with anchoring nut
In anchor slab side；
(5) stretch-draw support is against anchor slab side, deputy thread bar through stretch-draw support rear by branch sleeve with above
Main thread bar be connected；
(6) respectively force transducer, pad and tensioning nut are sequentially arranged on deputy thread bar；
(7) tensioning nut is tightened with instrument, to steel wire rope Shi Hanzhang, until the reading of force transducer reaches design
Pulling force；
(8) tighten anchoring nut, complete the stretch-draw to steel wire rope；
(9) it is repeated in the 3rd to the 8th step, completes installation and the stretch-draw of all steel wire ropes；
(10) tensioning nut, pad, force transducer, branch sleeve, deputy thread bar and stretch-draw support are finally unloaded.
Beneficial effect: a kind of prestress rope tensioning system of the present invention and method, has the advantages that
1, many steel wire ropes can be anchored by one piece of anchor slab, substantially increase the reinforcing efficiency to existing structure and effect
Really；
2, just can be realized steel wire rope Shi Hanzhang by rotation tensioning nut, and reach control by controlling torsion
The stretching force of steel wire rope processed, constructs convenient, it is not necessary to main equipment, and cable tensios control precision is high；
3, tensioning nut, pad, force transducer, branch sleeve and stretch-draw support are all detachable and reuse, great Liang Jie
About reinforcement cost, and easy to use, feature simply, rapidly and efficiently is installed.
Accompanying drawing explanation
Fig. 1 is the unitary construction figure of prestress rope tensioning system of the present invention；
Fig. 2 is the stretch-draw support top view of prestress rope tensioning system of the present invention；
Fig. 3 is the stretch-draw bracket side view of prestress rope tensioning system of the present invention；
Fig. 4 is the anchor slab top view of prestress rope tensioning system of the present invention；
Fig. 5 is the anchor slab side view of prestress rope tensioning system of the present invention；
In figure: 1-anchor slab, 2-bar planting, 3-steel wire rope, 4-screw shell, 5-extrudes anchor head, 6-main thread bar, and 7-stretch-draw is propped up
Frame, 8-branch sleeve, 9-force transducer, 10-pad, 11-anchors nut, 12-tensioning nut, and 13-treats ruggedized construction, and 14-is secondary
Threaded rod.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
Prestress rope tensioning system as shown in Figures 1 to 5, including being arranged on the bar planting 2 treated in ruggedized construction 13；
Anchor slab 1 is fixed on by bar planting 2 to be treated in ruggedized construction 13；Steel wire rope 3 is after the perforate walking around screw shell 4, with extruding anchor head 5
Anchoring；Main thread bar 6 one end is connected by female thread with screw shell 4, after the other end passes the perforate of anchor slab 1, with anchoring spiral shell
Female 11 fix；Stretch-draw support 7 is against the both sides of anchor slab 2, and deputy thread bar 14 passes through branch sleeve after the perforate of stretch-draw support 7
8 are connected with main thread bar 6；Force transducer 9, pad 10 and tensioning nut 12 are sequentially arranged on deputy thread bar 14.Extruding anchor head 5
Made by soft material, inside have hole, after steel wire rope 3 passes extruding anchor head 5, extrude described extruding anchor head 5 with instrument, reach
The purpose of anchoring steel wire rope 3, steel wire rope 3 other end is anchored to be treated other positions of ruggedized construction or is anchored at other structures
On.Screw shell 4 one end has longitudinal inner thread hole, and the other end has horizontal unthreaded hole, and longitudinal inner thread hole is used for and spiral shell
Rasp bar 6 connects, and horizontal unthreaded hole is used for connecting steel wire ropes 3.Tensioning nut 12 can be tightened with instrument, executes steel wire rope 3
Prestressing, and the purpose of the stretching force of steel wire rope 3 is reached to control by controlling the torsion of instrument.
The present invention also provides for a kind of prestress rope method for stretching, comprises the following steps:
(1) treating to punch in ruggedized construction 13 relevant position, bar planting 2 is being installed；
(2) anchor slab 1 is fixed on by bar planting 2 treats in ruggedized construction 13；
(3) steel wire rope 3 is after walking around the horizontal unthreaded hole of screw shell 4, anchors with extruding anchor head 5；
(4) by main thread bar 6 through after the perforate of anchor slab 1, in the female thread of precession screw shell 5, main thread bar 6 another
One end anchoring nut 11 is fixed；
(5) stretch-draw support 7 is against the side of anchor slab 1, and deputy thread bar 6 passes through to connect after the perforate of stretch-draw support 7
Sleeve 8 is connected with main thread bar 6；
(6) respectively force transducer 9, pad 10 and tensioning nut 12 are sequentially arranged on deputy thread bar 14；
(7) tensioning nut 12 is tightened with instrument, to steel wire rope 3 Shi Hanzhang, until the reading of force transducer 9 reaches to set
Meter stretching force；
(8) tighten anchoring nut 11, complete the stretch-draw to this root steel wire rope；
(9) it is repeated in the 3rd to the 8th step, completes installation and the stretch-draw of all steel wire ropes；
(10) tensioning nut 12, pad 10, force transducer 9, branch sleeve 8 and stretch-draw support 7 are finally unloaded.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a prestress rope tensioning system, it is characterised in that: include being fixed in architecture to be reinforced by bar planting
Anchor slab, is provided with stretch-draw support in anchor slab side；Also including the many main thread bars being parallel to each other, main thread bar one end connects spiral shell
Stricture of vagina sleeve, screw shell connecting steel wire ropes；After the main thread bar other end passes the perforate being located on anchor slab, solid by anchoring nut
Fixed, and branch sleeve is set in its end, branch sleeve auxiliary connection threaded rod one end, the deputy thread bar other end props up through stretch-draw
Frame, and it is fixed on stretch-draw stent outer by tensioning nut；It is additionally provided with force transducer between tensioning nut and stretch-draw support.
Prestress rope tensioning system the most according to claim 1, it is characterised in that: wherein, screw shell one end is opened
Having longitudinal inner thread hole, the other end has horizontal unthreaded hole, and longitudinal inner thread hole is used for being connected with threaded rod, horizontal non-threaded
Hole is used for connecting steel wire ropes.
Prestress rope tensioning system the most according to claim 2, it is characterised in that: wherein, steel wire penetrating is located at
After horizontal unthreaded hole on screw shell, its end is extruded anchor head anchoring.
4. a prestress rope method for stretching, it is characterised in that comprise the following steps:
(1) treating to punch in ruggedized construction relevant position, bar planting is being installed；
(2) anchor slab is fixed on by bar planting treats in ruggedized construction；
(3) steel wire rope is after the perforate walking around screw shell, with extruding anchor head anchoring；
(4), after main thread bar is passed the perforate of anchor slab, in the female thread of precession screw shell, and it is fixed on anchor with anchoring nut
Plate side；
(5) stretch-draw support being against anchor slab side, deputy thread bar passes through branch sleeve and main spiral shell above after stretch-draw support
Rasp bar is connected；
(6) respectively force transducer, pad and tensioning nut are sequentially arranged on deputy thread bar；
(7) tensioning nut is tightened with instrument, to steel wire rope Shi Hanzhang, until the reading of force transducer reaches to design stretch-draw
Power；
(8) tighten anchoring nut, complete the stretch-draw to steel wire rope；
(9) it is repeated in the 3rd to the 8th step, completes installation and the stretch-draw of all steel wire ropes；
(10) tensioning nut, pad, force transducer, branch sleeve, deputy thread bar and stretch-draw support are finally unloaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700587.6A CN106149575A (en) | 2016-08-22 | 2016-08-22 | Prestress rope tensioning system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700587.6A CN106149575A (en) | 2016-08-22 | 2016-08-22 | Prestress rope tensioning system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106149575A true CN106149575A (en) | 2016-11-23 |
Family
ID=57342118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700587.6A Pending CN106149575A (en) | 2016-08-22 | 2016-08-22 | Prestress rope tensioning system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106149575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951428A (en) * | 2018-08-30 | 2018-12-07 | 湖北科技学院 | A kind of bridge prestress tensioning equipment |
| CN109853853A (en) * | 2019-02-15 | 2019-06-07 | 广东庆余堂建筑科技有限公司 | A kind of prestress wire anchor |
| CN112962977A (en) * | 2021-03-17 | 2021-06-15 | 安徽工业大学 | Intelligent adjusting device and method for tension consistency of steel wire rope |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209683U (en) * | 1986-11-29 | 1987-11-11 | 付敏华 | Prestressed stretching device suitable for box steel beam |
| CN2583360Y (en) * | 2002-11-18 | 2003-10-29 | 新汶矿业集团有限责任公司汶南煤矿 | Prestressed steel rope roofbolt |
| JP2003328561A (en) * | 2002-05-14 | 2003-11-19 | Dps Bridge Works Co Ltd | Reinforcing method for concrete member and tensioning device for tendon used therein |
| KR100653629B1 (en) * | 2006-01-18 | 2006-12-05 | 한국건설기술연구원 | Jack apparatus for near surface mounted reinforcements |
| CN102561210A (en) * | 2012-01-17 | 2012-07-11 | 武汉大学 | Carbon fiber bar in-vitro prestressed tensioning device and using method thereof |
| CN102808517A (en) * | 2012-08-27 | 2012-12-05 | 郑州大学 | Pre-stress applying device for fiber reinforced polymer (FRP) bars outside reinforced concrete slab |
| CN104074368A (en) * | 2014-06-27 | 2014-10-01 | 湖南省交通科学研究院 | Concrete structure reinforcing method, self-anchored prestress assembly, assembled tensioning assembly |
| CN206052574U (en) * | 2016-08-22 | 2017-03-29 | 东南大学 | Prestress rope tensioning system |
-
2016
- 2016-08-22 CN CN201610700587.6A patent/CN106149575A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209683U (en) * | 1986-11-29 | 1987-11-11 | 付敏华 | Prestressed stretching device suitable for box steel beam |
| JP2003328561A (en) * | 2002-05-14 | 2003-11-19 | Dps Bridge Works Co Ltd | Reinforcing method for concrete member and tensioning device for tendon used therein |
| CN2583360Y (en) * | 2002-11-18 | 2003-10-29 | 新汶矿业集团有限责任公司汶南煤矿 | Prestressed steel rope roofbolt |
| KR100653629B1 (en) * | 2006-01-18 | 2006-12-05 | 한국건설기술연구원 | Jack apparatus for near surface mounted reinforcements |
| CN102561210A (en) * | 2012-01-17 | 2012-07-11 | 武汉大学 | Carbon fiber bar in-vitro prestressed tensioning device and using method thereof |
| CN102808517A (en) * | 2012-08-27 | 2012-12-05 | 郑州大学 | Pre-stress applying device for fiber reinforced polymer (FRP) bars outside reinforced concrete slab |
| CN104074368A (en) * | 2014-06-27 | 2014-10-01 | 湖南省交通科学研究院 | Concrete structure reinforcing method, self-anchored prestress assembly, assembled tensioning assembly |
| CN206052574U (en) * | 2016-08-22 | 2017-03-29 | 东南大学 | Prestress rope tensioning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951428A (en) * | 2018-08-30 | 2018-12-07 | 湖北科技学院 | A kind of bridge prestress tensioning equipment |
| CN109853853A (en) * | 2019-02-15 | 2019-06-07 | 广东庆余堂建筑科技有限公司 | A kind of prestress wire anchor |
| CN112962977A (en) * | 2021-03-17 | 2021-06-15 | 安徽工业大学 | Intelligent adjusting device and method for tension consistency of steel wire rope |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |