CN105675198B - A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method - Google Patents
A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method Download PDFInfo
- Publication number
- CN105675198B CN105675198B CN201610206830.9A CN201610206830A CN105675198B CN 105675198 B CN105675198 B CN 105675198B CN 201610206830 A CN201610206830 A CN 201610206830A CN 105675198 B CN105675198 B CN 105675198B
- Authority
- CN
- China
- Prior art keywords
- intermediate plate
- anchorage
- anchor ring
- tensioning
- locking member
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Reinforcement Elements For Buildings (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection methods, are fixed on the prestress detection of the unbonded prestressing tendon end of the end face of concrete by fixed anchorage and bearing plate for end, it includes：Detect anchorage, tensioning screw rod, tensioning stent, jack, pressure sensor, backing plate and nut；It detects anchorage and includes tubular anchor ring, cyclic annular wedge-shaped intermediate plate and intermediate plate locking member；Cyclic annular wedge shape intermediate plate is inserted between tubular anchor ring and fixed anchorage；Intermediate plate locking member and the tubular anchor ring bolt, intermediate plate locking member make detection anchorage be fixedly connected integrally with fixed anchorage；The front end of tensioning screw rod and intermediate plate locking member bolt.During detection, installation detecting device first, then with jack tension, when the pressure that fixed anchorage writes down pressure sensor when pulled is unbonded prestressing tendon rib cutting rear end prestressing force.The configuration of the present invention is simple, it is easy to detect.
Description
Technical field
The present invention relates to a kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection methods.
Background technology
Unbonded prestressing tendon generally uses in architectural engineering.Unbonded prestressing tendon its end after construction is
The end face of concrete is fixed on by fixed anchorage and bearing plate, anchorage is exposed about in unbonded prestressing tendon rib cutting rear end
30mm.Many architectural engineerings use function after the several years are used because to change, and need to unbonded prestressing tendon
Prestressing force size is detected.Lead to the steel strand wires that common unbonded prestressing tendon is diameter 15.2mm, sectional area 140mm2,
Prestressing force size is generally 14 tons~20 tons, and it is extremely difficult for measuring end pulling force, and there is presently no effective detection dresses
It puts and detection method.By the direct tensioning unbonded prestressing tendon of jack with measure pull unbonded prestressing tendon when pulling force
Value is impossible, because can not bite tensioning with jack on the non-binding presstressed reinforcing steel of 30mm long.
Invention content
The purpose of the present invention is to provide a kind of unbonded prestressing tendon rib cutting rear end simple in structure, easy to detect is pre-
Stress detection device and detection method.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of unbonded prestressing tendon rib cutting rear end prestress detection device passes through fixed anchorage and pressure-bearing for end
Plate is fixed on the prestress detection of the unbonded prestressing tendon end of the end face of concrete, which is characterized in that it includes：Detect anchor
Tool, tensioning screw rod, tensioning stent, jack, pressure sensor, backing plate and nut；
The detection anchorage includes tubular anchor ring, cyclic annular wedge-shaped intermediate plate and intermediate plate locking member；The endoporus of the tubular anchor ring
Back segment for threaded interior hole, the leading portion of the endoporus of the tubular anchor ring is bellmouth, and the tubular anchor ring is sheathed on the fixation
The outside of anchorage, there are a gaps between the front end of the tubular anchor ring and bearing plate；The cyclic annular wedge-shaped intermediate plate is inserted in institute
It states between tubular anchor ring and fixed anchorage；The intermediate plate locking member is cylinder body, and the bottom centre of the cylinder body has screw thread
Hole, the bung hole outer wall of the cylinder body have external screw thread, the intermediate plate locking member and the tubular anchor ring bolt, the intermediate plate
The rear end that the bung hole of locking member heads on the cyclic annular wedge-shaped intermediate plate makes the detection anchorage be fixedly connected into the fixed anchorage
One；
The front end of the tensioning screw rod and the intermediate plate locking member bolt；
The tensioning stent is the barrel being made of bucket bottom and bucket wall, and the center at the bucket bottom has a through-hole, described
It is provided on two at the bung hole of barrel and observes slot, the tensioning stent, jack, pressure sensor and backing plate are sheathed on institute successively
It states on tensioning screw rod, the bung hole of the tensioning stent heads on the bearing plate；
The nut is screwed onto the rear end of tensioning screw rod.
The cyclic annular wedge-shaped intermediate plate is composed of two panels or three wedge-shaped intermediate plate, outside the leading portion of the cyclic annular wedge-shaped intermediate plate
Surface is tapered.
A kind of unbonded prestressing tendon rib cutting rear end prestress detection method, first installation detecting device, then with thousand
Jin top tensioning, when the pressure that fixed anchorage writes down pressure sensor when pulled is that unbonded prestressing tendon rib cutting rear end is pre-
Stress.
The advantageous effect of technical solution provided by the invention is：
Unbonded prestressing tendon rib cutting rear end prestress detection device of the present invention by fixed anchorage and holds for end
Pressing plate is fixed on the prestress detection of the unbonded prestressing tendon end of the end face of concrete, it includes：Detect anchorage, tensioning
Screw rod, tensioning stent, jack, pressure sensor, backing plate and nut；The detection anchorage includes tubular anchor ring, cyclic annular wedge shape
Intermediate plate and intermediate plate locking member；The back segment of the endoporus of the tubular anchor ring be threaded interior hole, the leading portion of the endoporus of the tubular anchor ring
For bellmouth, the tubular anchor ring is sheathed on the outside of the fixed anchorage, between the front end of the tubular anchor ring and bearing plate
There are a gaps；The cyclic annular wedge-shaped intermediate plate is inserted between the tubular anchor ring and fixed anchorage；The intermediate plate locking member is
Cylinder body, the bottom centre of the cylinder body have threaded hole, and the bung hole outer wall of the cylinder body has external screw thread, the intermediate plate
Locking member and the tubular anchor ring bolt, the rear end that the bung hole of the intermediate plate locking member heads on the cyclic annular wedge-shaped intermediate plate make institute
Detection anchorage is stated to be fixedly connected integrally with the fixed anchorage；The front end of the tensioning screw rod and the intermediate plate locking member phase spiral shell
It connects；The tensioning stent is the barrel being made of bucket bottom and bucket wall, and the center at the bucket bottom has a through-hole, the barrel
Bung hole at open there are two observation slot, the tensioning stent, jack, pressure sensor and backing plate are sheathed on the tensioning successively
On screw rod, the tensioning stent is covered on outside the detection anchorage, and the bung hole of the tensioning stent heads on the bearing plate；The spiral shell
Mother is screwed onto the rear end of tensioning screw rod.During detection, installation detecting device first, then with jack tension tensioning screw rod, when solid
It is unbonded prestressing tendon rib cutting rear end prestressing force to determine anchorage to write down the pressure of pressure sensor when pulled.Therefore, originally
Invention unbonded prestressing tendon rib cutting rear end prestress detection apparatus structure is simple, easy to detect.
Description of the drawings
Fig. 1 is unbonded prestressing tendon rib cutting rear end prestress detection apparatus structure schematic diagram of the present invention.
Fig. 2 is tensioning supporting structure schematic diagram in the present invention.
Reference numeral：1- fixes anchorage；2- bearing plates；3- concrete；4- unbonded prestressing tendons；5- tensioning spiral shells
Bar；6- tensioning stents；7- jack；8- tubular anchor rings；The cyclic annular wedge-shaped intermediate plates of 9-；10- intermediate plate locking members；11- screw threads
Hole；12- threaded interior holes；13- bellmouths；14- barrels of bottoms；15- barrels of walls；16- through-holes；17- observes slot；18- pressure sensings
Device；19- bottoms；20- backing plates；21- nuts；22nd, gap.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
As shown in Figure 1 and Figure 2, a kind of unbonded prestressing tendon rib cutting rear end prestress detection device of the present invention, for holding
Portion is fixed on the prestress detection of 4 end of unbonded prestressing tendon of the end face of concrete 3 by fixed anchorage 1 and bearing plate 2,
It includes：Detect anchorage, tensioning screw rod 5, tensioning stent 6, jack 7, pressure sensor 18, backing plate 20 and nut 21；
The detection anchorage includes tubular anchor ring 8, cyclic annular wedge-shaped intermediate plate 9 and intermediate plate locking member 10；The tubular anchor ring 8
The back segment of endoporus is threaded interior hole 12, and the leading portion of the endoporus of the tubular anchor ring 8 is bellmouth 13, and the tubular anchor ring 8 is arranged
In the outside of the fixed anchorage 1, between the front end of the tubular anchor ring 8 and bearing plate 2, there are a gaps 22 to facilitate detection
The dismounting of anchorage；The cyclic annular wedge-shaped intermediate plate 9 is inserted between the tubular anchor ring 8 and fixed anchorage 1；The intermediate plate locking member
10 be cylinder body, and 19 center of bottom of the cylinder body has threaded hole 11, and the bung hole outer wall of the cylinder body has external screw thread,
The intermediate plate locking member 10 and 8 bolt of tubular anchor ring, the bung hole of the intermediate plate locking member 10 head on the cyclic annular wedge shape
The rear end of intermediate plate 9 makes the detection anchorage be fixedly connected integrally with the fixed anchorage 1；
The front end of the tensioning screw rod 5 and 10 bolt of intermediate plate locking member；
The tensioning stent 6 is the barrel being made of bucket bottom 14 and bucket wall 15, and the center at the bucket bottom 14 has one to lead to
Hole 16, opens that there are two observation slot 17, the tensioning stent 6, jack 7,18 and of pressure sensor at the bung hole of the barrel
Backing plate 20 is sheathed on successively on the tensioning screw rod 5, and the bung hole of the tensioning stent 6 heads on the bearing plate 2；；
The nut 21 is screwed onto the rear end of tensioning screw rod 5.
The cyclic annular wedge-shaped intermediate plate 9 is composed of two panels or three wedge-shaped intermediate plate, the leading portion of the cyclic annular wedge-shaped intermediate plate 9
Outer surface is tapered.
Unbonded prestressing tendon rib cutting rear end prestress detection method of the present invention, first installation detecting device, Ran Houyong
7 tensioning of jack, after the pressure that fixed anchorage writes down pressure sensor 18 when pulled is unbonded prestressing tendon rib cutting
End prestressing force.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of unbonded prestressing tendon rib cutting rear end prestress detection device passes through fixed anchorage and bearing plate for end
It is fixed on the prestress detection of the unbonded prestressing tendon end of the end face of concrete, which is characterized in that it includes：Detect anchor
Tool, tensioning screw rod, tensioning stent, jack, pressure sensor, backing plate and nut；
The detection anchorage includes tubular anchor ring, cyclic annular wedge-shaped intermediate plate and intermediate plate locking member；After the endoporus of the tubular anchor ring
Section is threaded interior hole, and the leading portion of the endoporus of the tubular anchor ring is bellmouth, and the tubular anchor ring is sheathed on the fixed anchorage
Outside, there are a gaps between the front end of the tubular anchor ring and bearing plate；The cyclic annular wedge-shaped intermediate plate is inserted in the cylinder
Between shape anchor ring and fixed anchorage；The intermediate plate locking member is cylinder body, and the bottom centre of the cylinder body has threaded hole, institute
Stating the bung hole outer wall of cylinder body has external screw thread, the intermediate plate locking member and the tubular anchor ring bolt, the intermediate plate locking
The rear end that the bung hole of part heads on the cyclic annular wedge-shaped intermediate plate makes the detection anchorage be fixedly connected integrally with the fixed anchorage；
The front end of the tensioning screw rod and the intermediate plate locking member bolt；
The tensioning stent is the barrel being made of bucket bottom and bucket wall, and the center at the bucket bottom has a through-hole, the tubbiness
It is provided on two at the bung hole of body and observes slot, the tensioning stent, jack, pressure sensor and backing plate are sheathed on described successively
It draws on screw rod, the bung hole of the tensioning stent heads on the bearing plate；
The nut is screwed onto the rear end of tensioning screw rod.
2. unbonded prestressing tendon rib cutting rear end prestress detection device according to claim 1, which is characterized in that institute
It states cyclic annular wedge-shaped intermediate plate to be composed of two panels or three wedge-shaped intermediate plate, the leading portion outer surface of the cyclic annular wedge-shaped intermediate plate is in cone
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206830.9A CN105675198B (en) | 2016-04-05 | 2016-04-05 | A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206830.9A CN105675198B (en) | 2016-04-05 | 2016-04-05 | A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105675198A CN105675198A (en) | 2016-06-15 |
| CN105675198B true CN105675198B (en) | 2018-06-22 |
Family
ID=56308332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610206830.9A Active CN105675198B (en) | 2016-04-05 | 2016-04-05 | A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105675198B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012832A (en) * | 2016-07-19 | 2016-10-12 | 成都鹏程路桥机械有限公司 | Bridge pre-stressed anchor device |
| CN106759324A (en) * | 2017-03-15 | 2017-05-31 | 山东省城乡建设勘察设计研究院 | A kind of prestress wire anchor pole tensioning servicing unit |
| CN108612313B (en) * | 2018-02-01 | 2020-10-16 | 重庆恒佳工程技术咨询有限公司 | Automatic control method for intelligent prestress tensioning |
| CN108360822A (en) * | 2018-03-19 | 2018-08-03 | 山东省建筑科学研究院 | A kind of stress mornitoring and tensioning clamping device |
| CN109374168A (en) * | 2018-09-17 | 2019-02-22 | 武汉希萌科技有限公司 | A method of accurately using load cell in tensioning construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885697U (en) * | 2010-11-01 | 2011-06-29 | 河南红桥锚机有限公司 | Automatic tension monitoring system for prestressed reinforcements |
| CN202562677U (en) * | 2012-03-31 | 2012-11-28 | 田剑东 | Prestress under anchorage intelligent synchronous stretching and drawing detection device |
| EP2607874A2 (en) * | 2011-10-31 | 2013-06-26 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Sensor device for monitoring a roller bearing |
| CN103837279A (en) * | 2014-03-31 | 2014-06-04 | 湖南科技大学 | Prestress anchoring structure tensioning force detecting system based on single-freedom-degree system |
| CN205538056U (en) * | 2016-04-05 | 2016-08-31 | 中国京冶工程技术有限公司 | Unbonded prestressed tendons cuts tip prestressing force detection device behind muscle |
-
2016
- 2016-04-05 CN CN201610206830.9A patent/CN105675198B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885697U (en) * | 2010-11-01 | 2011-06-29 | 河南红桥锚机有限公司 | Automatic tension monitoring system for prestressed reinforcements |
| EP2607874A2 (en) * | 2011-10-31 | 2013-06-26 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Sensor device for monitoring a roller bearing |
| CN202562677U (en) * | 2012-03-31 | 2012-11-28 | 田剑东 | Prestress under anchorage intelligent synchronous stretching and drawing detection device |
| CN103837279A (en) * | 2014-03-31 | 2014-06-04 | 湖南科技大学 | Prestress anchoring structure tensioning force detecting system based on single-freedom-degree system |
| CN205538056U (en) * | 2016-04-05 | 2016-08-31 | 中国京冶工程技术有限公司 | Unbonded prestressed tendons cuts tip prestressing force detection device behind muscle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105675198A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105675198B (en) | A kind of unbonded prestressing tendon rib cutting rear end prestress detection device and detection method | |
| CN101343880B (en) | Apparatus and method for existing anchorage engineering quality detection | |
| CN101831925B (en) | Detection method for static load of pile foundation | |
| CN207717522U (en) | A kind of anchor rod drawing instrument | |
| CN205538467U (en) | High protection nature reinforcing bar tensile strength test device | |
| CN111811716A (en) | Single-hole clamping piece anchorage device capable of measuring force for prestress and device and method for measuring force of prestress value | |
| CN107227968A (en) | A kind of self-inspection anchor pole and its application method | |
| CN108170978A (en) | A kind of tensile capacity analysis method of the pre-buried lifting anchor bolt of precast concrete | |
| WO2018082149A1 (en) | Withdrawal technology and recovery method for mechanical single prop with constant resistance | |
| CN205538056U (en) | Unbonded prestressed tendons cuts tip prestressing force detection device behind muscle | |
| CN109915188A (en) | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method | |
| WO2019136917A1 (en) | Synchronous testing system and testing method for stress and deformation field of half-body anchoring structure | |
| CN206189402U (en) | Early warning device that stock was used | |
| CN207829929U (en) | A kind of self-test anchor pole | |
| CN104697848A (en) | Novel mine anchor rod quality detection pulling device | |
| CN209894603U (en) | Simple drawing instrument | |
| CN105043738B (en) | Crab-bolt long duration load/crack folding constant force loading test device repeatedly | |
| CN204163119U (en) | Pile foundation sound ranging pipes structure | |
| CN107143752A (en) | A kind of prestress pipe deformation and spillage detector and its application method | |
| CN208966008U (en) | A kind of reusable exterior wall steel pipe scaffold wall-connecting piece device | |
| CN206625140U (en) | A kind of long hoist cable of suspension bridge changes rope device | |
| CN207300559U (en) | A kind of self-tapping screw anti-pulling capacity detection device | |
| CN207469106U (en) | A kind of vertical prestressing tensioning auxiliary bearing beam | |
| CN206609554U (en) | The attachment structure of force cell in a kind of pre-stress stretching device | |
| CN205166353U (en) | Tear screw rod bracket device open |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |