CN102852143A - Anchoring device for prestressed reinforcement materials - Google Patents

Anchoring device for prestressed reinforcement materials Download PDF

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Publication number
CN102852143A
CN102852143A CN2012103471515A CN201210347151A CN102852143A CN 102852143 A CN102852143 A CN 102852143A CN 2012103471515 A CN2012103471515 A CN 2012103471515A CN 201210347151 A CN201210347151 A CN 201210347151A CN 102852143 A CN102852143 A CN 102852143A
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anchor
baffle plate
external device
displacement trasducer
reinforcement material
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CN2012103471515A
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CN102852143B (en
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周芬
杜运兴
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Abstract

The invention provides an anchoring device for prestressed reinforcement materials. The bottom of an external device of a displacement converter is fixedly connected with a bolt bar; a large cylindrical structure and a small cylindrical structure which are connected together are arranged in the displacement converter; the large cylindrical structure is arranged in a cavity of the external device of the displacement converter; the small cylindrical structure is arranged at an opening of the external device of the displacement converter; the outer end of the small cylindrical structure is fixedly connected with a connecting plate; a group of steel balls is arranged between the radial outer wall of the large cylindrical structure and the annular inner wall of the external device of the displacement converter; and another group of steel balls is arranged between a plane of the large cylindrical structure on one side of the small cylindrical structure and the inner wall of one side of the opening of the external device of the displacement converter. The anchoring device can conveniently and accurately apply prestress to the reinforcement materials, prevents the reinforcement materials from rotating, and can control the prestress on the reinforcement materials. In addition, the prestress can be readjusted according to construction and use conditions.

Description

A kind of anchor device of prestressing force reinforcement material
Technical field
The present invention relates to a kind of anchor device of prestressing force reinforcement material, belong to the anchor device technical field.
Background technology
In geotechnological reinforcing technique field, at present the reinforced earth technology of main flow is to lay reinforcement material in the middle level of banketing, and reaches constraint and bankets and strengthen the intensity of banketing, reduce the purpose of the distortion of banketing.Be generally used for ground stabilization, embankment (comprising highway, railway), side slope, barricade engineering etc.
The at present development of this technology mainly concentrates on the research and development of reinforcement material.On the one hand, the research and development of reinforcement material, for example, geo-grid, geotechnical grid, geotextiles, galvanized steel strip, steel plastic band, concrete steel band etc.; On the other hand, the research and development of reinforcement material form, for example, the unidirectional reinforcement in plane, the two-way reinforcement in plane, plane three-dimensional reinforcement, three-dimensional reinforcement (H-V reinforcement) etc.
The working mechanism of these reinforced earth technologies is basically identical, it all is a kind of passive geotechnological reinforcing technique, namely filling the soil body under deadweight and upper load effect, when banketing the occurred level distortion, be subject to the restriction of reinforcement material, improve the banket purpose of distortion of the bearing capacity banket and minimizing thereby reach, thereby the effect of reinforcement material is passive in this reinforced earth technology, and reinforcement material just plays a role in the process of constraint soil deformation.In addition, this reinforced earth is to having relatively high expectations of banketing, and usually selects the cohesionless soil can be better as the filler effect, usually like this can bring higher material cost expense.The external basic cohesionless soil that adopts is as banketing.
The inventor adopted the prestressing force reinforced earth technology to strengthen intensity and the stability of railway embankment using in 2003, and after time the theory of this technology has been carried out correlative study.The prestressing force reinforced earth technology that proposes before the inventor, this technology has adopted the carbon fiber tape of high elastic modulus as reinforcement material, and by being anchored in after the stretch-draw on the baffle plate, this technology has increased the lateral restraint effect of baffle plate to the soil body.
But because the ground tackle that adopts in this technology is unreliable, adopt anchor cup and anchor sheet that reinforcement material is anchored in baffle position.If anchor sheet position is asymmetric a little, reinforcement material just is easy to skid in ground tackle, and loss of prestress is larger, can not adjust muscle band internal force after the anchoring.
Summary of the invention
The purpose of this invention is to provide a kind of rationally effective anchor device, effectively reinforcing side slope reaches the muscle band is applied reliable prestressing force, and according to the prestressing force on the calculation requirement timely adjustment reinforcement material.Prevent that on the one hand the excessive generation muscle of Earth pressure band from destroying, adjust on the other hand the vertical displacement of side slope, satisfy functional requirement, and then a kind of anchor device of prestressing force reinforcement material is provided.
The objective of the invention is to be achieved through the following technical solutions:
A kind of anchor device of prestressing force reinforcement material, comprise: baffle plate, nut, shank of bolt, displacement trasducer, connect plate and pad, described baffle plate is reinforced concrete structure, be provided with the anchor cylinder in the baffle plate, steel mesh reinforcement and anchor bar, the inside of anchor cylinder is provided with internal thread, the outside of anchor cylinder is connected with anchor bar, steel mesh reinforcement in anchor bar and the baffle plate is fixed together, shank of bolt is threaded with anchor cylinder in the baffle plate and is anchored on the baffle plate, shank of bolt is provided with nut and pad, pad is arranged between nut and the baffle plate, displacement trasducer comprises the displacement trasducer external device (ED), displacement trasducer interior arrangement and steel ball, bottom and the shank of bolt of displacement trasducer external device (ED) are fixed together, the displacement trasducer interior arrangement is small one and large one two cylindrical structurals that link together, the great circle column construction is arranged in the displacement trasducer external device (ED) chamber, the small cylindrical structure is arranged on the opening part of displacement trasducer external device (ED), the outer end of small cylindrical structure be connected plate and be fixedly connected with, be provided with one group of steel ball between the hoop inwall of the radial outer wall of great circle column construction and displacement trasducer external device (ED), be provided with another group steel ball between the inwall of the plane of the great circle column construction of small cylindrical structure one side and displacement trasducer external device (ED) opening one side.
The present invention has the following advantages: the present invention can make things convenient for and accurately reinforcement material applied prestressing force, and avoid reinforcement material to skid, can control the prestressing force on the reinforcement material simultaneously, and, can carry out the adjustment of prestressing force secondary according to construction and mode of occupation.
Description of drawings
Fig. 1 is the structural representation that baffle plate 1 is not installed on the anchor device shank of bolt 3;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is that the F of Fig. 1 is to view;
Fig. 4 is the structural representation that baffle plate 1 is installed on the shank of bolt 3 of anchor device;
Fig. 5 is the front view of baffle plate 1;
Fig. 6 is that the B of Fig. 5 is to view;
Fig. 7 is the C-C sectional view of Fig. 5;
Fig. 8 is the structural representation that baffle plate 1 is provided with five anchor cylinders 5;
Fig. 9 is the E-E sectional view of Fig. 8;
Figure 10 is that the D of Fig. 8 is to view;
Figure 11 is that displacement trasducer 4 profiles are polygonal schematic diagram;
Figure 12 is that displacement trasducer 4 profiles are spherical schematic diagram.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing: present embodiment is implemented under take technical solution of the present invention as prerequisite, has provided detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
Such as Fig. 1 ~ shown in Figure 12, the anchor device of a kind of prestressing force reinforcement material that present embodiment is related, comprise: baffle plate 1, nut 2, shank of bolt 3, displacement trasducer 4, connect plate 7 and pad 8, described baffle plate 1 is reinforced concrete structure, be provided with anchor cylinder 5 in the baffle plate 1, steel mesh reinforcement 9 and anchor bar 10, the inside of anchor cylinder 5 is provided with internal thread, the outside of anchor cylinder 5 is connected with anchor bar 10, steel mesh reinforcement 9 in anchor bar 10 and the baffle plate 1 is fixed together, shank of bolt 3 is threaded with anchor cylinder 5 in the baffle plate 1 and is anchored on the baffle plate 1, shank of bolt 3 is provided with nut 2 and pad 8, pad 8 is arranged between nut 2 and the baffle plate 1, displacement trasducer 4 comprises displacement trasducer external device (ED) 41, displacement trasducer interior arrangement 42 and steel ball 6, the bottom of displacement trasducer external device (ED) 41 and shank of bolt 3 are fixed together, displacement trasducer interior arrangement 42 is small one and large one two cylindrical structurals that link together, the great circle column construction is arranged in displacement trasducer external device (ED) 41 chambeies, the small cylindrical structure is arranged on the opening part of displacement trasducer external device (ED) 41, the outer end of small cylindrical structure be connected plate 7 and be fixedly connected with, be provided with one group of steel ball 6 between the hoop inwall of the radial outer wall of great circle column construction and displacement trasducer external device (ED) 41, be provided with another group steel ball 6 between the inwall of the plane of the great circle column construction of small cylindrical structure one side and displacement trasducer external device (ED) 41 openings one side.
Described shank of bolt 3 is provided with draw-in groove 11, uses spanner to turn shank of bolt 3 by draw-in groove 11, thereby can reduce the prestressing force on the reinforcement material.
Be full of sliding agent in the space 12 between described displacement trasducer external device (ED) 41 and the displacement trasducer interior arrangement 42.
The top of described baffle plate 1 is provided with groove 13, and the bottom of baffle plate 1 is provided with projection 14.
Described displacement trasducer external device (ED) 41 be shaped as polygon or sphere.
Described baffle plate 1 is provided with one or more anchor cylinders 5.
Baffle plate 1 adopts reinforced concrete structure, and the size of reinforcement ratio is distributed by prestressing force size anchorage point and determines.The pre-buried anchor cylinder 5 of anchorage point on baffle plate 1, the effect of anchor bar 10 are to guarantee that anchor cylinder 5 has stressed reliably in baffle plate 1.Anchorage point on the baffle plate 1 can arrange different quantity and position according to demand, and (as shown in Figure 8) baffle plate 1 is provided with a plurality of anchor cylinders 5.Baffle plate 1 can couple together up and down use, and upper lower baffle plate connects by inserting, and the bottom that the top of baffle plate is provided with a groove, baffle plate is provided with a projection, and connection can cooperatively interact.
The prestressing force numerical value of being regulated above the reinforcement material by nut 2 in the anchor device is by torque wrench fastening nut 2 control prestressing force sizes.
Displacement trasducer 4 is made of inside and outside two parts, the displacement of level can rotate and have along with shank of bolt 3 to this part, the shape of displacement trasducer external device (ED) 41 can be made polygon or sphere, can be divided into up and down two parts along horizontal central line during displacement trasducer external device (ED) 41 actual fabrication, these two parts all need to carry out the zinc-plated preservative treatment of carrying out, and have an effect with displacement trasducer external device (ED) 41 by spherical steel ball 6.Steel ball 6 is distributed in two positions, and a position is the side of inner cylinder, and another position is the end of interior cylinder.Be full of sliding agent between the inside and outside device.After displacement trasducer interior arrangement 42 and steel ball 6 were installed in displacement trasducer external device (ED) 41, two parts external device (ED) externally welded along the line of demarcation up and down during actual fabrication, and butt welded seam polishes, preservative treatment.The effect of steel ball 6 is to guarantee can freely rotate between displacement trasducer interior arrangement 42 and the displacement trasducer external device (ED) 41, and displacement trasducer external device (ED) 41 links to each other with baffle plate 1, and displacement trasducer interior arrangement 42 links to each other with reinforcement material.Namely when shank of bolt 3 rotated in the anchor hole of baffle plate 1, reinforcement material can not be rotated, and only understood with the external device (ED) generating horizontal displacement, thereby can apply prestressing force to inner reinforcement material.The displacement trasducer interior arrangement 42 that connects in plate 7 and the displacement trasducer 4 links together, and assurance can be with the motion of the interior arrangement in the displacement trasducer, and connecting plate is the position that is connected with reinforcement material.By welding or bondingly will connect plate and reinforcement material links together.Thereby can drive the reinforcement material motion, it is applied prestressing force.
The present invention can make things convenient for and accurately reinforcement material applied prestressing force, and avoids the reinforcement material loss of prestress; Thereby can control the prestressing force on the reinforcement material by adjusting nut or screw rod simultaneously.And, can carry out the adjustment of prestressing force secondary according to construction and mode of occupation.Just can't loosen, tighten adjustment after the existing anchor device construction, this anchoring dress can interact with baffle plate owing to shank of bolt, have at a certain distance a draw-in groove on the shank of bolt, so that spanner can turn shank of bolt, stress distribution on the convenient adjustment muscle band.Use through reality, when the prestressing force on the presstressed reinforcing steel band is excessive, reduce prestressing force on the muscle band by turning draw-in groove, in order to avoid inner reinforcement material is broken, guaranteed the safety of reinforcement material.
The above; only be the better specific embodiment of the present invention; these specific embodiment all are based on the different implementations under the general idea of the present invention; and protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (6)

1. the anchor device of a prestressing force reinforcement material, it is characterized in that, comprise: baffle plate, nut, shank of bolt, displacement trasducer, connect plate and pad, described baffle plate is reinforced concrete structure, be provided with the anchor cylinder in the baffle plate, steel mesh reinforcement and anchor bar, the inside of anchor cylinder is provided with internal thread, the outside of anchor cylinder and anchor bar welding, steel mesh reinforcement in anchor bar and the baffle plate is fixed together, shank of bolt is threaded with anchor cylinder in the baffle plate and is anchored on the baffle plate, shank of bolt is provided with nut and pad, pad is arranged between nut and the baffle plate, displacement trasducer comprises the displacement trasducer external device (ED), displacement trasducer interior arrangement and steel ball, bottom and the shank of bolt of displacement trasducer external device (ED) are fixed together, the displacement trasducer interior arrangement is small one and large one two cylindrical structurals that link together, the great circle column construction is arranged in the displacement trasducer external device (ED) chamber, the small cylindrical structure is arranged on the opening part of displacement trasducer external device (ED), the outer end of small cylindrical structure be connected plate and be fixedly connected with, be provided with one group of steel ball between the hoop inwall of the radial outer wall of great circle column construction and displacement trasducer external device (ED), be provided with another group steel ball between the inwall of the plane of the great circle column construction of small cylindrical structure one side and displacement trasducer external device (ED) opening one side.
2. the anchor device of prestressing force reinforcement material according to claim 1 is characterized in that, described shank of bolt is provided with draw-in groove.
3. the anchor device of prestressing force reinforcement material according to claim 2 is characterized in that, is full of sliding agent in the space between described displacement trasducer external device (ED) and the displacement trasducer interior arrangement.
4. the anchor device of prestressing force reinforcement material according to claim 3 is characterized in that, the top of described baffle plate is provided with groove, and the bottom of baffle plate is provided with projection.
5. the anchor device of prestressing force reinforcement material according to claim 4 is characterized in that, described displacement trasducer external device (ED) be shaped as polygon or sphere.
6. the anchor device of prestressing force reinforcement material according to claim 5 is characterized in that, described baffle plate is provided with one or more anchor cylinders.
CN201210347151.5A 2012-01-19 2012-09-18 Anchoring device for prestressed reinforcement materials Expired - Fee Related CN102852143B (en)

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CN201210347151.5A CN102852143B (en) 2012-01-19 2012-09-18 Anchoring device for prestressed reinforcement materials

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Application Number Priority Date Filing Date Title
CN201210016869 2012-01-19
CN201210016869.6 2012-01-19
CN201210347151.5A CN102852143B (en) 2012-01-19 2012-09-18 Anchoring device for prestressed reinforcement materials

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CN102852143B CN102852143B (en) 2014-10-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103290842A (en) * 2013-05-30 2013-09-11 曾庆义 Hinge-type anchor device with automatic fastener and anchor rod structure
CN104005410A (en) * 2014-06-23 2014-08-27 湖南大学 Tensioning and anchoring device based on unbonded prestress reinforced soil technology
CN105735074A (en) * 2015-12-07 2016-07-06 长沙学院 Reinforced earth body sticky, elastic and plastic deformation measuring method, construction method and tensioning system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070000187A1 (en) * 2005-05-13 2007-01-04 St Onge Gene Lateral force resistance device
RU97396U1 (en) * 2010-03-26 2010-09-10 Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет путей сообщения" (МИИТ) ANCHOR DEVICE
CN202007405U (en) * 2010-12-20 2011-10-12 中铁隧道集团有限公司 Vibration balancing anchoring device
CN202047408U (en) * 2011-04-21 2011-11-23 中国十七冶集团有限公司 Massif non-damage embedded anchoring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070000187A1 (en) * 2005-05-13 2007-01-04 St Onge Gene Lateral force resistance device
RU97396U1 (en) * 2010-03-26 2010-09-10 Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет путей сообщения" (МИИТ) ANCHOR DEVICE
CN202007405U (en) * 2010-12-20 2011-10-12 中铁隧道集团有限公司 Vibration balancing anchoring device
CN202047408U (en) * 2011-04-21 2011-11-23 中国十七冶集团有限公司 Massif non-damage embedded anchoring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103290842A (en) * 2013-05-30 2013-09-11 曾庆义 Hinge-type anchor device with automatic fastener and anchor rod structure
CN104005410A (en) * 2014-06-23 2014-08-27 湖南大学 Tensioning and anchoring device based on unbonded prestress reinforced soil technology
CN104005410B (en) * 2014-06-23 2015-12-02 湖南大学 A kind of stretching and anchoring device based on prestressing without bondn reinforced earth technology
CN105735074A (en) * 2015-12-07 2016-07-06 长沙学院 Reinforced earth body sticky, elastic and plastic deformation measuring method, construction method and tensioning system
CN105735074B (en) * 2015-12-07 2018-07-24 长沙学院 Reinforced earth body sticks distortion of elastic-plastic measuring method, construction method and tensioning system

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