CN103132457A - 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 PDF

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Publication number
CN103132457A
CN103132457A CN2013100966262A CN201310096626A CN103132457A CN 103132457 A CN103132457 A CN 103132457A CN 2013100966262 A CN2013100966262 A CN 2013100966262A CN 201310096626 A CN201310096626 A CN 201310096626A CN 103132457 A CN103132457 A CN 103132457A
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China
Prior art keywords
ball pivot
anchor
force
spheroid
spherical
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CN2013100966262A
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Chinese (zh)
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CN103132457B (en
Inventor
马庆松
耿冬青
张伟
郭恒
宋福渊
胡贺祥
白晨光
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中国建筑股份有限公司
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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

Multi beam anchor pole or anchorage cable stretching latching force are from balanced hollow ball pivot and job practices

Technical field

The present invention relates to tensioning equipment and the job practices of a kind of anchor pole or anchor cable, particularly a kind of multi beam anchor pole or anchorage cable stretching device and job practices.

Background technology

Along with the fast development of China's economy, all kinds of buildings are in the ascendant.The 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 obvious defectives 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 stretch-draw and guaranteed that the displacement of every reinforcing bar (twisted wire) termination is equal, but the pulling force of every steel strand carrying does not wait.Show according to correlation engineering project monitoring data, 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 pulling force that some reinforcing bars (twisted wire) are the born state failure that reaches capacity has too greatly caused the generation of accident.It is much that the anchor pole that occurs 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, be subject to the restriction of jack performance tonnage, generally adopts jack minute round to pursue 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, can't 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 efficient of prestressed anchor or anchor cable.

Summary of the invention

The purpose 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 job practices, solve existing multi beam anchor pole or anchor cable and cause anchor pole or anchor cable to be broken due to pulling force difference that every anchor pole or anchor cable are born in stretching process, can't 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 the 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, all have on described ball pivot spheroid and ball pivot spherical shell 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 cylindrical 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 the ball pivot spheroid inserts and forms 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 job practices of balanced hollow ball pivot, and step is as follows:

Step 1 is plugged pin and the ball pivot spheroid is connected to the bottom of hollow jack by fixture;

Step 2 is installed the locking plate of waist rail, backing plate and locking ground tackle and locking ground tackle, and the axis that guarantees reinforcing bar or steel strand is vertical with the backing plate plane;

Step 3 is installed top board, hollow jack, makes reinforcing bar or steel strand pass 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 is extracted pin;

Step 5 is opened the 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 the ball pivot spherical shell, realize that tensioning equipment automatically regulates by the pulling force of tension reinforcing steel bar (twisted wire) at work progress, make the pulling force that is born by the reinforcing bar of stretch-draw (twisted wire) automatically be adjusted to equalization and not need manually-operated.

The present invention is 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 present 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 2-5 doubly, can guarantee that every anchor pole (anchor cable) pulling force equates, greatly reduce the probability that has an accident, the tensioning fixation that is particularly useful for large-scale multi beam prestressed anchor (rope) is as stretch-draw of large bridge suspension cable etc.

The counter-force ground tackle is placed in the groove at ball pivot spheroid top, guarantees that the axis of ball pivot, counter-force ground tackle and hollow jack on the 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 and adjust the pulling force that each velamen tension reinforcing steel bar or steel strand bear after transfering to pin, the insertion pin prevents the rotation of 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.

Description of drawings

The present invention will be further described in detail below in conjunction with accompanying drawing.

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 extremely shown in Figure 7 referring to Fig. 1, 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 at ball pivot spheroid 2 the raised area side insertion pins 5, the end of described pin 5 and ball pivot spherical shell 3 end faces are adjacent to, all have on described ball pivot spheroid 2 and ball pivot spherical shell 3 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 cylindrical 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, realize equating of each reinforcing bar (twisted wire) pulling force by following steps, reduce possibility that security incident occurs, improve stretch-draw efficient, ensure the quality of products:

Described multi beam anchor pole or anchorage cable stretching latching force are from the job practices of balanced hollow ball pivot, and step is as follows:

Step 1 is plugged pin 5 and ball pivot spheroid 2 is connected to the bottom of hollow jack 4 by fixture;

Step 2 is installed the locking plate of waist rail, backing plate and locking ground tackle and locking ground tackle, and the axis that guarantees reinforcing bar or steel strand is vertical with the backing plate plane;

Step 3 is installed top board, hollow jack 4, makes reinforcing bar or steel strand pass 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 is extracted pin 5;

Step 5 is opened the 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, all have on described ball pivot spheroid (2) and ball pivot spherical shell (3) 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 cylindrical body (3.1), and the through hole that open its center is bowl-shape through hole (3.2).
4. according to claim 1 or 3 described multi beam anchor poles 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, and ball pivot spheroid (2) inserts and forms ball pivot in bowl-shape through hole (3.2).
5. according to claim 1 or 3 described multi beam anchor poles or anchorage cable stretching latching force from balanced hollow ball pivot, is characterized in that: described fixture is magnetic force suction, bolt or pin.
6. the described multi beam anchor pole of according to claim 1 to 5 any one or anchorage cable stretching latching force are from the job practices of balanced hollow ball pivot, and it is characterized in that: step is as follows:
Step 1 is plugged pin (5) and ball pivot spheroid (2) is connected to the bottom of hollow jack (4) by fixture;
Step 2 is installed the locking plate of waist rail, backing plate and locking ground tackle and locking ground tackle, and the axis that guarantees reinforcing bar or steel strand is vertical with the backing plate plane;
Step 3 is installed top board, hollow jack (4), makes reinforcing bar or steel strand pass 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 is extracted pin (5);
Step 5 is opened the 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).
CN201310096626.2A 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 CN103132457B (en)

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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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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428729A1 (en) * 1974-06-14 1975-12-18 Holzmann Philipp Ag Holding down anchor bolt removal process - heats locally to weaken before breaking under tension load
US4142336A (en) * 1977-09-19 1979-03-06 Joslyn Mfg. And Supply Co. Earth anchor
US4449855A (en) * 1981-06-26 1984-05-22 Dyckerhoff & Widmann Aktiengesellschaft Anchor head for a corrosion-protected injected anchor
FR2600687A1 (en) * 1986-06-26 1987-12-31 Sautereau Roland Device for fixing a tie on a sheet pile or the like
US5345742A (en) * 1992-03-24 1994-09-13 Vsl International Ag Force transfer body for an anchorage
CN1817599A (en) * 2006-03-17 2006-08-16 王伟明 Secondary tubular pile tensioning process by prestress and special tensioner
CN101333815A (en) * 2008-07-31 2008-12-31 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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428729A1 (en) * 1974-06-14 1975-12-18 Holzmann Philipp Ag Holding down anchor bolt removal process - heats locally to weaken before breaking under tension load
US4142336A (en) * 1977-09-19 1979-03-06 Joslyn Mfg. And Supply Co. Earth anchor
US4449855A (en) * 1981-06-26 1984-05-22 Dyckerhoff & Widmann Aktiengesellschaft Anchor head for a corrosion-protected injected anchor
FR2600687A1 (en) * 1986-06-26 1987-12-31 Sautereau Roland Device for fixing a tie on a sheet pile or the like
US5345742A (en) * 1992-03-24 1994-09-13 Vsl International Ag Force transfer body for an anchorage
CN1817599A (en) * 2006-03-17 2006-08-16 王伟明 Secondary tubular pile tensioning process by prestress and special tensioner
CN101333815A (en) * 2008-07-31 2008-12-31 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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