CN103132457B - Tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and construction method thereof - Google Patents
Tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and construction method thereof Download PDFInfo
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- CN103132457B CN103132457B CN201310096626.2A CN201310096626A CN103132457B CN 103132457 B CN103132457 B CN 103132457B CN 201310096626 A CN201310096626 A CN 201310096626A CN 103132457 B CN103132457 B CN 103132457B
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Abstract
Provided is a tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and a construction method thereof. The spherical hinge comprises a counterforce anchor tool, a hollow jack, a spherical hinge spherical body and a spherical hinge spherical shell. The spherical hinge spherical shell is fixedly connected with the hollow jack through a fixed piece, and the spherical hinge spherical body is embedded in the spherical hinge spherical shell. The top face of the spherical hinge spherical body is higher than the top face of the spherical hinge spherical shell, and pins are inserted in the higher part of the spherical hinge spherical body. The end portions of the pins are attached to the top face of the spherical hinge spherical shell, and the spherical hinge spherical body and the spherical hinge spherical shell are respectively provided with through holes which rightly face middle holes in the hollow jack. The technical problems that existing multi-beam anchor rods or anchor cables are pulled down due to the fact that each anchor rod or each anchor cable bears different pull force in the tensioning process, and uniform force bearing of all anchor rods or anchor cables can not be achieved are solved. The spherical hinge can be widely applied to tensioning process of the anchor rods or the anchor cables, and particularly suitable for even tensioning of the multi-beam anchor rods or the anchor cables.
Description
Technical field
The present invention relates to tensioning equipment and the construction method of a kind of anchor pole or anchor cable, particularly a kind of multi beam anchor pole or anchorage cable stretching device and construction method.
Background technology
Along with the fast development of China's economy, all kinds of buildings are in the ascendant.Prestressed anchor construction technology is widely used in all kinds of pattern foundation pit supporting structures.In multi beam prestressed anchor (rope) tensioning fixation process, the hollow jack of general direct employing carries out stretch-draw.
Yet there are following 2 open defects in the technique that directly adopts hollow jack to carry out stretch-draw: (1) security incident is easily sent out; (2) waste time and energy, inefficiency.
One, security incident is easily sent out
Directly adopt hollow jack to carry out the displacement that stretch-draw guaranteed every reinforcing bar (twisted wire) termination and equate, but the pulling force of every steel strand carrying is not etc.According to correlation engineering project monitoring data, show, the variation in tension that this technique is brought is sometimes very obvious, pulling force between each root reinforcing bar (twisted wire) even differs hundreds of thousand Ns, directly consequence is that the pulling force born of the reinforcing bar (twisted wire) that has is very little, and the generation that has caused accident occurs to destroy the pulling force that some reinforcing bars (twisted wire) are the born state that reaches capacity too greatly.It is much that the anchor pole occurring because of above-mentioned reason is broken accident.
Two, waste time and energy, inefficiency
For the stretch-draw of multi beam prestressed anchor (rope), especially the prestress anchorage cable of large bridge, is subject to the restriction of jack performance tonnage, generally adopts jack minute round by the technique of root stretch-draw.For the anchor cable of tens of bundles, can not guarantee that the power of every anchor cable equates, exist the hidden danger of security incident, waste time and energy again, inefficiency, cannot guarantee construction quality.
Based on this, if can search out a kind of multi beam prestressed anchor or anchor cable producing balanced forces in the process of stretch-draw that guarantees, can greatly reduce potential safety hazard, improve the stretch-draw efficiency of prestressed anchor or anchor cable.
Summary of the invention
The object of this invention is to provide a kind of multi beam anchor pole or anchorage cable stretching latching force from balanced hollow ball pivot and construction method, solve existing multi beam anchor pole or anchor cable in stretching process because pulling force difference that every anchor pole or anchor cable are born causes anchor pole or anchor cable to be pulled off, cannot realize the technical problem of all anchor poles or anchor cable uniform stressed.
For achieving the above object, the present invention adopts following technical scheme:
A kind of multi beam prestressed anchor or anchorage cable stretching latching force are from balanced hollow ball pivot, comprise counter-force ground tackle and hollow jack, also comprise ball pivot spheroid and ball pivot spherical shell, described ball pivot spherical shell is fixedly connected with by fixture with hollow jack, described ball pivot spheroid embeds in ball pivot spherical shell, its end face is higher than ball pivot spherical shell end face, and at ball pivot spheroid the raised area side insertion pin, the end of described pin and ball pivot spherical shell end face are adjacent to, on described ball pivot spheroid and ball pivot spherical shell, all have with hollow jack on the through hole that aligns of mesopore.
Described ball pivot spheroid is the cylinder of side evagination, and its end face has circular shallow slot, and the through hole that its center is offered is cylindrical hole, and described circular shallow slot and cylindrical hole are coaxial.
Described ball pivot spherical shell has cylinder body, and the through hole that open its center is bowl-shape through hole.
The profile of described bowl-shape through hole and ball pivot spheroid fits like a glove, and ball pivot spheroid inserts formation ball pivot in bowl-shape through hole.
Described fixture is magnetic force suction, bolt or pin.
Described multi beam anchor pole or anchorage cable stretching latching force are from the construction method of balanced hollow ball pivot, and step is as follows:
Step 1, plugs pin and ball pivot spheroid is connected to the bottom of hollow jack by fixture;
Step 2, the locking plate of waist rail, backing plate and locking ground tackle being installed and being locked ground tackle, guarantees that the axis of reinforcing bar or steel strand is vertical with backing plate plane;
Step 3, installs top board, hollow jack, makes reinforcing bar or steel strand through the through hole on hollow jack, ball pivot spheroid and ball pivot spherical shell;
Step 4, the locking plate of installation counter-force ground tackle and counter-force ground tackle, extracts pin;
Step 5, opens motor switch hierarchical loading, and every grade of load unloads after a period of stabilisation, according to force balance principle, by freely rotating of ball pivot spheroid, guarantees that the pulling force of every reinforcing bar or steel strand equates;
Step 6, unloads counter-force ground tackle and hollow jack, plugs pin.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention is by ball pivot spheroid freely rotating in ball pivot spherical shell, realize tensioning equipment and automatically regulate by the pulling force of tension reinforcing steel bar (twisted wire) at work progress, make the pulling force being born by the reinforcing bar of stretch-draw (twisted wire) automatically be adjusted to equalization and not need manual operation.
The present invention by installing multi beam prestressed anchor (anchor cable) tensioning fixation power from balanced hollow ball pivot between hollow jack and counter-force ground tackle, make up the deficiency that in current multi beam prestressed anchor (rope) tensioning fixation technique, each root reinforcing bar (twisted wire) pulling force does not wait, reduced the possibility that accident occurs.
By device of the present invention is installed, can disposable stretch-draw 2-5 root anchor pole (rope), original operating efficiency has been improved to 2-5 doubly, can guarantee that every anchor pole (anchor cable) pulling force equates, greatly reduce the probability having an accident, the tensioning fixation that is particularly useful for large-scale multi beam prestressed anchor (rope), as stretch-draw of large bridge suspension cable etc.
Counter-force ground tackle is placed in to the groove at ball pivot spheroid top, guarantees that the axis of ball pivot, counter-force ground tackle and hollow jack, on same straight line, guarantees construction quality.
By inserting the pin of ball pivot spheroid the raised area side, and the end of pin and ball pivot spherical shell end face are adjacent to, guarantee that ball pivot spheroid in stretching process freely rotates the pulling force that each velamen tension reinforcing steel bar of adjustment or steel strand bear after transfering to pin, inserts the rotation that pin prevents ball pivot spheroid in installing installation process.
The present invention can be widely used in the tensioning process of anchor pole or anchor cable, is particularly useful for the even stretch-draw of multi beam anchor pole or anchor cable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is assembly drawing of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of counter-force ground tackle.
Fig. 4 is the lateral view of counter-force ground tackle.
Fig. 5 is the ball pivot stereogram that ball pivot spheroid and ball pivot spherical shell form.
Fig. 6 is the lateral view of Fig. 5.
Fig. 7 is the top view of Fig. 5.
Fig. 8 is ball pivot spherical shell detail drawing.
Fig. 9 is the left view of Fig. 8.
Figure 10 is ball pivot spheroid detail drawing.
Figure 11 is the left view of Figure 10.
Reference numeral: 1-counter-force ground tackle, 2-ball pivot spheroid, the circular shallow slot of 2.1-, 2.2-cylindrical hole, 3-ball pivot spherical shell, 3.1-cylinder body, the bowl-shape through hole of 3.2-, the hollow jack of 4-, 5-pin.
The specific embodiment
Embodiment is referring to shown in Fig. 1 to Fig. 7, a kind of multi beam prestressed anchor or anchorage cable stretching latching force are from balanced hollow ball pivot, comprise counter-force ground tackle 1 and hollow jack 4, also comprise ball pivot spheroid 2 and ball pivot spherical shell 3, described ball pivot spherical shell 3 is fixedly connected with by fixture with hollow jack 4, described ball pivot spheroid 2 embeds in ball pivot spherical shell 3, its end face is higher than ball pivot spherical shell 3 end faces, and insert pin 5 in ball pivot spheroid 2 the raised area sides, the end of described pin 5 and ball pivot spherical shell 3 end faces are adjacent to, on described ball pivot spheroid 2 and ball pivot spherical shell 3, all have with hollow jack 4 on the through hole that aligns of mesopore.
Referring to 10 and Figure 11, described ball pivot spheroid 2 is the cylinder of side evagination, and its end face has circular shallow slot 2.1, and the through hole that its center is offered is cylindrical hole 2.2, and described circular shallow slot 2.1 and cylindrical hole 2.2 are coaxial.
Referring to Fig. 8 and Fig. 9, described ball pivot spherical shell 3 has cylinder body 3.1, and the through hole that open its center is bowl-shape through hole 3.2.
The profile of described bowl-shape through hole 3.2 and ball pivot spheroid 2 fits like a glove, and ball pivot spheroid 2 inserts the interior formation ball pivot of bowl-shape through hole 3.2.
Described fixture is magnetic force suction, bolt or pin.
In prestressed anchor (rope) tensioning fixation process, utilize multi beam prestressed anchor (anchor cable) tensioning fixation power from balanced hollow ball pivot, by following steps, realize equating of each reinforcing bar (twisted wire) pulling force, reduce possibility that security incident occurs, improve stretch-draw efficiency, ensure the quality of products:
Described multi beam anchor pole or anchorage cable stretching latching force are from the construction method of balanced hollow ball pivot, and step is as follows:
Step 1, plugs pin 5 and ball pivot spheroid 2 is connected to the bottom of hollow jack 4 by fixture;
Step 2, the locking plate of waist rail, backing plate and locking ground tackle being installed and being locked ground tackle, guarantees that the axis of reinforcing bar or steel strand is vertical with backing plate plane;
Step 3, installs top board, hollow jack 4, makes reinforcing bar or steel strand through the through hole on hollow jack 4, ball pivot spheroid 2 and ball pivot spherical shell 3;
Step 4, the locking plate of installation counter-force ground tackle 1 and counter-force ground tackle, extracts pin 5;
Step 5, opens motor switch hierarchical loading, and every grade of load unloads after a period of stabilisation, according to force balance principle, by freely rotating of ball pivot spheroid 2, guarantees that the pulling force of every reinforcing bar or steel strand equates;
Step 6, unloads counter-force ground tackle 1 and hollow jack 4, plugs pin 5.
Claims (6)
1. a multi beam anchor pole or anchorage cable stretching latching force are from balanced hollow ball pivot, comprise counter-force ground tackle (1) and hollow jack (4), it is characterized in that: also comprise ball pivot spheroid (2) and ball pivot spherical shell (3), described ball pivot spherical shell (3) is fixedly connected with by fixture with hollow jack (4), described ball pivot spheroid (2) embeds in ball pivot spherical shell (3), its end face is higher than ball pivot spherical shell (3) end face, and at ball pivot spheroid (2) the raised area side insertion pin (5), the end of described pin (5) and ball pivot spherical shell (3) end face are adjacent to, on described ball pivot spheroid (2) and ball pivot spherical shell (3), all have with hollow jack (4) on the through hole that aligns of mesopore.
2. multi beam anchor pole according to claim 1 or anchorage cable stretching latching force are from balanced hollow ball pivot, it is characterized in that: described ball pivot spheroid (2) is the cylinder of side evagination, its end face has circular shallow slot (2.1), the through hole that its center is offered is cylindrical hole (2.2), and described circular shallow slot (2.1) and cylindrical hole (2.2) are coaxial.
3. multi beam anchor pole according to claim 1 or anchorage cable stretching latching force, from balanced hollow ball pivot, is characterized in that: described ball pivot spherical shell (3) has cylinder body (3.1), and the through hole that open its center is bowl-shape through hole (3.2).
4. multi beam anchor pole according to claim 3 or anchorage cable stretching latching force are from balanced hollow ball pivot, it is characterized in that: the profile of described bowl-shape through hole (3.2) and ball pivot spheroid (2) fits like a glove, ball pivot spheroid (2) inserts formation ball pivot in bowl-shape through hole (3.2).
According to the multi beam anchor pole described in claim 1 or 3 or anchorage cable stretching latching force from balanced hollow ball pivot, it is characterized in that: described fixture is magnetic force suction, bolt or pin.
According to the multi beam anchor pole described in claim 1 to 5 any one or anchorage cable stretching latching force from the construction method of balanced hollow ball pivot, it is characterized in that: step is as follows:
Step 1, plugs pin (5) and ball pivot spheroid (2) is connected to the bottom of hollow jack (4) by fixture;
Step 2, the locking plate of waist rail, backing plate and locking ground tackle being installed and being locked ground tackle, guarantees that the axis of reinforcing bar or steel strand is vertical with backing plate plane;
Step 3, installs top board, hollow jack (4), makes reinforcing bar or steel strand through the through hole on hollow jack (4), ball pivot spheroid (2) and ball pivot spherical shell (3);
Step 4, the locking plate of installation counter-force ground tackle (1) and counter-force ground tackle, extracts pin (5);
Step 5, opens motor switch hierarchical loading, and every grade of load unloads after a period of stabilisation, according to force balance principle, by freely rotating of ball pivot spheroid (2), guarantees that the pulling force of every reinforcing bar or steel strand equates;
Step 6, unloads counter-force ground tackle (1) and hollow jack (4), plugs pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096626.2A CN103132457B (en) | 2013-03-25 | 2013-03-25 | Tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096626.2A CN103132457B (en) | 2013-03-25 | 2013-03-25 | Tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and construction method thereof |
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| Publication Number | Publication Date |
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| CN103132457A CN103132457A (en) | 2013-06-05 |
| CN103132457B true CN103132457B (en) | 2014-12-03 |
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| CN201310096626.2A Expired - Fee Related CN103132457B (en) | 2013-03-25 | 2013-03-25 | Tension locking force self-equalized hollow spherical hinge of multi-beam anchor rods or anchor cables and construction method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105863274B (en) * | 2016-06-03 | 2023-09-08 | 天津银龙预应力材料股份有限公司 | Automatic locking device special for stretching and stretching of prestressed material |
| CN112252154B (en) * | 2020-11-05 | 2022-03-08 | 重庆交通大学 | Anchoring structure of short suspender of through-type arch bridge |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2428729C3 (en) * | 1974-06-14 | 1981-12-24 | Philipp Holzmann Ag, 6000 Frankfurt | Method for removing the tension member of a grouting anchor |
| US4142336A (en) * | 1977-09-19 | 1979-03-06 | Joslyn Mfg. And Supply Co. | Earth anchor |
| DE3125166C2 (en) * | 1981-06-26 | 1993-12-02 | Dyckerhoff & Widmann AG, 8000 München | Method for producing a post-tensionable grouting anchor |
| FR2600687A1 (en) * | 1986-06-26 | 1987-12-31 | Sautereau Roland | Device for fixing a tie on a sheet pile or the like |
| ES2102632T3 (en) * | 1992-03-24 | 1997-08-01 | Vsl Int Ag | FORCE TRANSMITTER BODY FOR AN ANCHOR. |
| CN100475475C (en) * | 2006-03-17 | 2009-04-08 | 王伟明 | Secondary tubular pile tensioning process by prestress and special tensioner |
| CN101333815B (en) * | 2008-07-31 | 2011-09-21 | 南通建筑工程总承包有限公司 | Concrete anchor rod and its construction method |
| CN203174602U (en) * | 2013-03-25 | 2013-09-04 | 中国建筑股份有限公司 | Multi-beam pre-stressed anchor rod or anchor cable stretching-drawing and locking force self-balancing hollow spherical hinge |
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Granted publication date: 20141203 Termination date: 20200325 |