CN106639158A - Integrated intelligent anchorage device and manufacturing method thereof - Google Patents
Integrated intelligent anchorage device and manufacturing method thereof Download PDFInfo
- Publication number
- CN106639158A CN106639158A CN201611008835.7A CN201611008835A CN106639158A CN 106639158 A CN106639158 A CN 106639158A CN 201611008835 A CN201611008835 A CN 201611008835A CN 106639158 A CN106639158 A CN 106639158A
- Authority
- CN
- China
- Prior art keywords
- anchorage
- groove
- fibre
- integrated intelligence
- sensor fibre
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Abstract
The invention discloses an integrated intelligent anchorage device and a manufacturing method thereof. The integrated intelligent anchorage device comprises an anchorage device body, wherein the outer surface of the anchorage device body is provided with a groove, the groove surrounds the outer surface of the anchorage device body and coincides with the axis of the anchorage device body; the integrated intelligent anchorage device also comprises an optical fiber detection module wound in the groove; the optical fiber detection module comprises a sensing fiber, connectors connected to two ends of the sensing fiber, and positioning blocks connected with the connectors at the two ends, a filler is also arranged in the groove, and the filler is located between the groove and the sensing fiber and on the sensing fiber. An optical fiber sensor and the anchorage device are combined, a stress mean outside the anchorage device can be effectively measured by using compression-expansion deformation of the anchorage device, and the tension of a prestressed tendon is measured by enabling the stress mean to correspond to the prestressed tendon; besides, the stress change of the anchorage device can be well detected by instrument monitoring.
Description
Technical field
The present invention relates to anchorage technical field, and in particular to a kind of integrated intelligence anchorage and preparation method thereof.
Background technology
Steel strand wires are formed by many steel wire twistings, because of the characteristic such as its intensity is high, flexible, are widely used in concrete pre-
It is main primary structure member among the building engineering structures such as stress rib, bridge cable, rock soil anchor rope.Steel strand wires are easily subject to week
, rust corrosion in the impact in collarette border, loss of prestress, and then affect its service behaviour there is, to building it is normal using and
Safe operation has a negative impact.So, long-term monitoring in real time is carried out to the working condition of steel strand wires, grasp answering for steel strand wires
Power state, ensure steel strand wires uses safety, is the development priority of prestressing technique.
Anchorage is permanent anchor used in prestressed concrete, and it is guarantor in post stretching structure or component to be
Hold the pulling force of presstressed reinforcing steel and pass it to the anchoring instrument of inside concrete, also referred to as prestressed anchor.
Anchorage, particularly strand tapered anchorage, Jing is often used in bridge construction, and positioning is installed in advance, then pours coagulation
Soil, is embedded in the two ends of concrete；It is also used for the prestress systems such as ground anchor cable, drag-line, anchorage.
Steel strand prestress anchorage is widely used prestressed reinforced concrete field, but at present by monitor anchorage come
The equipment and detection method of monitoring prestress system stressing conditions is not applied.
The content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of integrated intelligence anchorage and preparation method thereof, this is integrated
Changing intelligent anchorage can be used as steel strand prestress anchorage most widely used at present.
To achieve these goals, the technical solution used in the present invention is：
A kind of integrated intelligence anchorage, including anchorage body, the outer surface of the anchorage body is provided with groove, the groove
Around the anchorage body outer surface and with the dead in line of the anchorage body, the integrated intelligence anchorage also include light
Fine detection components, the fiber laser arrays component is surrounded in the groove；The fiber laser arrays component includes sensor fibre, connection
In the joint at the sensor fibre two ends and the locating piece being connected with two end connector, filler is additionally provided with the groove,
The filler is located between the groove and the sensor fibre and is coated on the sensor fibre.
Further, the sensor fibre is Naked optical fiber or plastics packaged optical fiber.
Further, the fiber laser arrays component and filler are fixed in the groove by binding agent.
Further, the bonding agent is thermosetting resin, and the thermosetting resin is epoxy resin, polyurethane or polysulfide
Rubber.
Further, the sensor fibre is the optical fiber that can be measured according to scattering principle of calibrated length.
Further, the depth of the groove is 1.5-2.5 centimetre, and width is 2-3 centimetre.
Further, the filler is assorted fibre, and the assorted fibre includes carbon fiber, glass fibre and basalt
Two or more in fiber.
The preparation method that the present invention also provides above-mentioned integrated intelligence anchorage, comprises the steps：
(1) groove with the dead in line of the anchorage body is opened up on the excircle of anchorage；
(2) it is terminated with the sensor fibre of joint by two to be wound in above-mentioned groove, then two end connectors of sensor fibre is connect
In entering locating piece；
(3) filler for being stained with binding agent is wound in into above-mentioned being arranged with the groove of sensor fibre, you can obtain this
Bright integrated intelligence anchorage.
Further, the depth of step (1) further groove is 1.5-2.5 centimetre, and width is 2-3 centimetre.
In sum, as a result of above-mentioned technical proposal, beneficial effects of the present invention are：
1st, the present invention by Fibre Optical Sensor in combination with anchorage, will sensor fibre be wound on the outside of anchorage, using anchorage
Compression, can effectively measure the stress average outside anchorage, by the way that stress average is mapped with the tension force of presstressed reinforcing steel,
The tension force of measurement presstressed reinforcing steel；And the stress change of anchorage can well be detected by instrument monitoring.
2nd, sensor fibre of the present invention and filler assorted fibre silk are around in groove, are glued in bonding when entering in groove
Form overall after knot agent, with anchorage solidification.Can guarantee that sensor fibre has good globality with groove using assorted fibre silk,
Space and obscission will not be produced, optical fiber and whole intelligent anchorage compatible deformation is enable, is conducive to improving the precision of measurement.Together
When, the epoxy resin of assorted fibre silk and bonding can well protect internal optical fiber not corroded by external environment, ensure sense light
Fine service life.
3rd, present invention can apply on prestressed anchor, anchor cable, drag-line, to presstressed reinforcing steel Suo Li, anchor cable force, Cable
Power is measured.
Description of the drawings
Fig. 1 is the structural representation of anchorage body in a kind of integrated intelligence anchorage of the embodiment of the present invention；
Fig. 2 is a kind of structural representation of integrated intelligence anchorage of the embodiment of the present invention；
Fig. 3 is a kind of operating diagram of integrated intelligence anchorage of the embodiment of the present invention.
In figure, 1- anchorage bodies, 2- grooves, 3- sensor fibres, 4- joints, 5- locating pieces, 6- fillers, 7- anchor plates,
8- steel strand wires, 9- spiral bars, 10- concrete.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It should be noted that when component is referred to as " being fixed on " another component, it can directly on another component
Or can also there is component placed in the middle.When a component is considered as " connection " another component, it can be directly connected to
To another component or may be simultaneously present component placed in the middle.When a component is considered as " being arranged at " another component, it
Can be set directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " level ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field for belonging to the present invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that of the invention in limiting.Term as used herein " and/or " include one or more phases
The arbitrary and all of combination of the Listed Items of pass.
Embodiment 1
As depicted in figs. 1 and 2, a kind of integrated intelligence anchorage, including anchorage body 1 and fiber laser arrays component, the anchor
The outer round surface of tool body 1 offers depth for 1.5 centimetres, and width is 2 centimetres of grooves 2, and the groove 2 is around the anchorage sheet
The outer surface of body 1 and with the dead in line of the anchorage body 1, the fiber laser arrays component is surrounded in the groove 2, and is led to
Cross binding agent to be fixed in the groove 2；The fiber laser arrays component includes sensor fibre 3, is connected to 3 liang of the sensor fibre
The joint 4 at end and the locating piece 5 being connected with two end connector 4, the locating piece 5 is used to fix fibre-optical splice, prevents destruction.
The filler 6 for being stained with binding agent is also arranged with the groove 2, the filler 6 is located at the groove 2 and the sensor fibre
Between 3 and it is coated on the sensor fibre 3, filler 6 is used to ensure that sensor fibre 3 has good globality with groove 2,
Space and obscission will not be produced, sensor fibre 3 and whole intelligent anchorage compatible deformation is enable, is conducive to improving the essence of measurement
Degree.
Further, sensor fibre 3 described in the present embodiment is Naked optical fiber, of the invention due to the protection with filler 6,
Overcome Naked optical fiber and draw that fragility is larger and the shortcoming of frangibility, therefore, even if also having no effect on this using Naked optical fiber in the present invention
The service life of invention and stress measurement.Certainly, plastics packaged optical fiber is may also be employed in other embodiment as sensor fibre.
Further, binding agent described in the embodiment of the present invention is thermosetting resin, and the thermosetting resin is asphalt mixtures modified by epoxy resin
Fat, it is also possible to use polyurethane or polysulfide rubber as binding agent in certain other embodiment.Thermosetting resin rigidity is big, hardness
High, heatproof is high, product size good stability, and after mixing with the assorted fibre of filler 6 its performance is more enhanced, and greatly improves this
The overall stability of bright intelligent anchorage.
Further, can be surveyed according to light scattering principle for calibrated length of sensor fibre 3 described in the present embodiment
The optical fiber of amount.
Further, filler 6 described in the present embodiment is assorted fibre, and the assorted fibre includes carbon fiber, glass
Fiber and basalt fibre.
The preparation method of integrated intelligence anchorage of the present invention is：
(1) groove 2 with the dead in line of the anchorage body 1 is opened up on the excircle of anchorage body 1；
(2) sensor fibre 3 that two are terminated with joint 4 is wound in above-mentioned groove 2, then the joint 4 at two ends is accessed calmly
In the block 5 of position；
(3) filler 6 for being stained with binding agent is wound in into above-mentioned being arranged with the groove 2 of sensor fibre 3, you can obtain this
Invention integrated intelligence anchorage.
It is 2 centimetres that embodiment of the present invention further groove 2 is preferably dimensioned to be depth for 1.5 centimetres, width, certainly other enforcements
Other may also be employed in example suitably sized.
Binding agent is preferably thermosetting resin epoxy resin in the embodiment of the present invention, and filler is preferably carbon fiber, glass
The assorted fibre silk that fiber and basalt fibre are mixed.
Embodiment 2
The embodiment of the present invention is 3 centimetres except the size of groove 2 is changed into depth for 2.5 centimetres, width, and filler 6 is
Outside carbon fiber, the assorted fibre of glass fibre, other are same as Example 1.
The present invention measuring principle be：
The present invention adopts brillouin distributed measurement Fibre Optical Sensor, is wound in the water jacket of anchorage, makes intelligent anchor
Tool, using the compression of anchorage, measures to the stress of anchorage.
So that prestressing force work anchorage is applied in engineering as an example, according to the actual size and constructing operation situation of anchorage, if
Suitable anchorage installation figure is counted out as shown in figure 3, a kind of integrated intelligence anchorage of the invention is mixed in the reinforcing bar equipped with spiral bar 9
Operating diagram in solidifying soil 10, by intelligent anchorage of the present invention the end of steel strand wires 8, and intelligent anchorage and anchor plate 7 are fixed on
It is close to, you can measure the tension force of steel strand wires using the intelligent anchorage.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this
Bright patent claim, the equal change completed under the technical spirit suggested by all present invention or modification change, all should belong to
Cover the scope of the claims in the present invention.
Claims (9)
1. a kind of integrated intelligence anchorage, including anchorage body, it is characterised in that the outer surface of the anchorage body is provided with recessed
Groove, the groove around the anchorage body outer surface and with the dead in line of the anchorage body, the integrated intelligence
Anchorage also includes fiber laser arrays component, and the fiber laser arrays component is surrounded in the groove；The fiber laser arrays component includes
Sensor fibre, the joint for being connected to the sensor fibre two ends and the locating piece being connected with two end connector, in the groove
Filler is additionally provided with, the filler is located between the groove and the sensor fibre and is coated on the sensor fibre.
2. integrated intelligence anchorage according to claim 1, it is characterised in that the sensor fibre is Naked optical fiber or plastics
Packaged fiber.
3. integrated intelligence anchorage according to claim 1, it is characterised in that the fiber laser arrays component and filler are logical
Cross binding agent to be fixed in the groove.
4. integrated intelligence anchorage according to claim 3, it is characterised in that the binding agent is thermosetting resin, institute
Thermosetting resin is stated for epoxy resin, polyurethane or polysulfide rubber.
5. integrated intelligence anchorage according to claim 1, it is characterised in that the sensor fibre is calibrated length
The optical fiber of distributed measurement can be carried out according to light scattering principle.
6. integrated intelligence anchorage according to claim 1, it is characterised in that the depth of the groove is 1.5-2.5 li
Rice, width is 2-3 centimetre.
7. integrated intelligence anchorage according to claim 1, it is characterised in that the filler is assorted fibre, described
Assorted fibre includes two or more in carbon fiber, glass fibre and basalt fibre.
8. the preparation method of the integrated intelligence anchorage described in a kind of any one of claim 1-7, it is characterised in that including as follows
Step：
(1) groove with the dead in line of the anchorage body is opened up on the excircle of anchorage；
(2) it is terminated with the sensor fibre of joint by two to be wound in above-mentioned groove, then the two end connectors access of sensor fibre is fixed
In the block of position；
(3) filler for being stained with binding agent is wound in into above-mentioned being arranged with the groove of sensor fibre, you can obtain collection of the present invention
Into change intelligent anchorage.
9. the preparation method of integrated intelligence anchorage according to claim 8, it is characterised in that step (1) concave
The depth of groove is 1.5-2.5 centimetre, and width is 2-3 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008835.7A CN106639158A (en) | 2016-11-16 | 2016-11-16 | Integrated intelligent anchorage device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008835.7A CN106639158A (en) | 2016-11-16 | 2016-11-16 | Integrated intelligent anchorage device and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639158A true CN106639158A (en) | 2017-05-10 |
Family
ID=58805622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611008835.7A Pending CN106639158A (en) | 2016-11-16 | 2016-11-16 | Integrated intelligent anchorage device and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639158A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290091A (en) * | 2017-06-22 | 2017-10-24 | 广西大学 | A kind of tensioning force measuring system and its measuring method for prestress wire |
| CN108444622A (en) * | 2018-06-07 | 2018-08-24 | 广西大学 | A kind of intelligent prestress anchor slab and prestressed monitoring method |
| CN108627289A (en) * | 2018-06-07 | 2018-10-09 | 广西大学 | A kind of high sensitivity dynamometry ring sensor |
| CN110241820A (en) * | 2018-03-07 | 2019-09-17 | 许琦 | Anchor head structure |
| CN113008422A (en) * | 2020-12-18 | 2021-06-22 | 同济大学 | Distributed monitoring structure and method for anchoring state of prestressed tendon group |
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|---|---|---|---|---|
| US7038190B2 (en) * | 2001-12-21 | 2006-05-02 | Eric Udd | Fiber grating environmental sensing system |
| CN201024380Y (en) * | 2007-04-11 | 2008-02-20 | 江苏法尔胜新日制铁缆索有限公司 | Intelligent type inclined cable structure |
| CN201358591Y (en) * | 2009-01-22 | 2009-12-09 | 华东建筑设计研究院有限公司 | Stretchable anchorage device with real-time force measuring function of steel guy rope |
| CN104535234A (en) * | 2014-12-29 | 2015-04-22 | 大连理工大学 | Optical fiber inhaul cable prestress monitoring method and sensor thereof |
-
2016
- 2016-11-16 CN CN201611008835.7A patent/CN106639158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7038190B2 (en) * | 2001-12-21 | 2006-05-02 | Eric Udd | Fiber grating environmental sensing system |
| CN201024380Y (en) * | 2007-04-11 | 2008-02-20 | 江苏法尔胜新日制铁缆索有限公司 | Intelligent type inclined cable structure |
| CN201358591Y (en) * | 2009-01-22 | 2009-12-09 | 华东建筑设计研究院有限公司 | Stretchable anchorage device with real-time force measuring function of steel guy rope |
| CN104535234A (en) * | 2014-12-29 | 2015-04-22 | 大连理工大学 | Optical fiber inhaul cable prestress monitoring method and sensor thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290091A (en) * | 2017-06-22 | 2017-10-24 | 广西大学 | A kind of tensioning force measuring system and its measuring method for prestress wire |
| CN107290091B (en) * | 2017-06-22 | 2023-06-02 | 广西大学 | Tension force measurement system and method for prestressed steel strand |
| CN110241820A (en) * | 2018-03-07 | 2019-09-17 | 许琦 | Anchor head structure |
| CN110241820B (en) * | 2018-03-07 | 2020-12-04 | 许琦 | Anchor head structure |
| CN108444622A (en) * | 2018-06-07 | 2018-08-24 | 广西大学 | A kind of intelligent prestress anchor slab and prestressed monitoring method |
| CN108627289A (en) * | 2018-06-07 | 2018-10-09 | 广西大学 | A kind of high sensitivity dynamometry ring sensor |
| CN113008422A (en) * | 2020-12-18 | 2021-06-22 | 同济大学 | Distributed monitoring structure and method for anchoring state of prestressed tendon group |
| CN113008422B (en) * | 2020-12-18 | 2022-04-01 | 同济大学 | Distributed monitoring structure and method for anchoring state of prestressed tendon group |
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