CN101881081A - Clip type anchorage tool for stretching single steel strand and method for stretching single steel strand by using same - Google Patents
Clip type anchorage tool for stretching single steel strand and method for stretching single steel strand by using same Download PDFInfo
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- CN101881081A CN101881081A CN2010100037309A CN201010003730A CN101881081A CN 101881081 A CN101881081 A CN 101881081A CN 2010100037309 A CN2010100037309 A CN 2010100037309A CN 201010003730 A CN201010003730 A CN 201010003730A CN 101881081 A CN101881081 A CN 101881081A
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- steel strand
- stretching
- intermediate plate
- spring
- single steel
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Abstract
The invention discloses a clip type anchorage tool for stretching a single steel strand and a method for stretching a single steel strand by using the same, relating to a temporary anchor device on stretching equipment for clamping a steel strand and a method for stretching by using the same when a prestressed tendon is a single steel strand. The anchorage tool comprise a sleeve cover and a sleeve, a taper section at the lower section of the sleeve is internally clamped with a clip, a spring is arranged above the clip, the upper end of the spring is provided with a spring cover plate which is arranged in a sleeve cove chute, a wrench is provided with two steps of bumps, and an insertion hole for inserting the upper step of bump is arranged on the spring cover plate. When stretching, the anchorage tool is assembled firstly, the steel strand penetrates out of the anchorage tool, pretightening force is generated by the clip on the steel strand, and then the stretching is carried out. After stretching, the steel strand is cut off so as to ensure that a structural member is separated with the anchorage tool. Axial force is slightly applied to the steel strand at the lower port of the clip, the clip moves upward with the steel strand, loosening is generated, and then residual steel strand in the anchorage tool is taken out of a central port of the spring cover plate for respective storage. The invention is convenient, rapid, safe and high-efficiency to stretch the single steel strand.
Description
Technical field
The present invention relates to a kind of pretensioning prestressed concrete production of articles that is used for, when presstressed reinforcing steel is single steel strand, the provisional anchor device of clamping steel strand and with the method for its stretching single steel strand on tensioning equipment.
Background technology
The prestressed concrete goods have the branch of pre-tensioning system and post stretching by method for applying prestressing force.Adopt steel strand be presstressed reinforcing steel concrete component post stretching normally by moveable anchor to the presstressed reinforcing steel stress application after, with work anchor presstressed reinforcing steel is carried out anchoring.Post stretching is short with the moveable anchor working time, promptly carries out anchoring with work anchor after applying prestressing force, has waited to finish the stretch-draw operation in a duct of concrete component, and tensioning equipment enters next circulation.
Pre-tensioning system is lasted longer with moveable anchor, it is after whole presstressed reinforcing steels to prefabricated units carry out pre-stretch-draw, concrete perfusion again, and when treating that concrete component intensity reaches designing requirement, can destress.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind of simple in structure, easy to make, handling safety is reliable, service efficiency is high clip type anchorage tool for stretching single steel strand and with the method for its stretching single steel strand.
The implementation of the object of the invention is, clip type anchorage tool for stretching single steel strand, socket cover and sleeve are integrally welded, sleeve hypomere inwall is tapered, and card has intermediate plate in the conical section, intermediate plate top shock mount, spring bumper cover is withstood in the spring upper end, spring bumper cover is contained in the socket cover chute, and spanner has two rank projections, has on the spring bumper cover to insert the jack of going up the rank projection.
The method of clip type anchorage tool for stretching single steel strand stretching single steel strand, its step is as follows:
1) assembling clip type anchorage tool for stretching single steel strand, pack into successively in the sleeve instrument intermediate plate and spring, the breach with spring bumper cover plush copper alignment sleeve cover periphery falls in the chute of socket cover spring bumper cover.The last rank projection of spanner is inserted the jack of spring bumper cover, and rotation is till the nose portion of spring bumper cover be can't see;
2) steel strand are penetrated by the conical surface of intermediate plate termination, pass from intermediate plate, spring, spring bumper cover, and intermediate plate is implemented stretch-draw to steel strand;
3) apply prestressed operation and finish after, treat that component strength reaches designing requirement, between prefabricated units and moveable anchor, cut off steel strand with destress;
4) intermediate plate lower port steel strand are slightly executed axial force upwards, intermediate plate moves upward with steel strand, and intermediate plate produces loosening, and the residue steel strand in the moveable anchor are taken out by the middle pit of the stomach of spring bumper cover.
Moveable anchor of the present invention is simple in structure, easy to make, handling safety is reliable, service efficiency is high.Adopt stretching single steel strand of the present invention convenient, fast, safe, efficient.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the socket cover structural representation,
Fig. 3 be the I-I of Fig. 2 to view,
Fig. 4 is the spring bumper cover structural representation,
Fig. 5 be the II-II of Fig. 2 to view,
Fig. 6 is the spanner structure schematic diagram,
Fig. 7 be the III-III of Fig. 6 to view,
Fig. 8 is a fundamental diagram of the present invention.
The specific embodiment
The present invention is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1,2,3,4,5, socket cover 1 and sleeve 2 are integrally welded, sleeve 2 hypomere inwalls are tapered, card has intermediate plate 3 in the conical section, intermediate plate 3 top shock mounts 4, spring bumper cover is withstood in the spring upper end, and spring bumper cover is contained in the socket cover chute, has on the spring bumper cover to insert the jack 9 of going up rank projection 10.
With reference to Fig. 6,7, spanner 12 has two rank projections, promptly gets out of a predicament or an embarrassing situation 11 and top bar 10.Following rank projection is intended to raise the height of rank projection, is convenient to operation, and last rank projection inserts in the jack 9 corresponding on the spring bumper cover 5, makes it with spanner 12 rotations.
The method of clip type anchorage tool for stretching single steel strand stretching single steel strand, its step is as follows:
1) assembling clip type anchorage tool for stretching single steel strand, pack into successively in the sleeve 2 instrument intermediate plate 3 and spring 4.Breach 7 with spring bumper cover 5 plush coppers 8 alignment sleeve covers 1 periphery falls in the chute of socket cover spring bumper cover.The last rank projection 10 of spanner 12 is inserted the jack 9 of spring bumper covers, rotation, till plush copper 8 parts of spring bumper cover be can't see, the chute height of socket cover 1 must guarantee that spring bumper cover can rotate smoothly.The pretightning force of spring bumper cover 5 compression springs 4 is enough to compress intermediate plate 3, so far finishes assembling of the present invention.
2) steel strand 13 are penetrated by the conical surface 6 of intermediate plate termination, pass from intermediate plate 3, spring 4, spring bumper cover 5, and under the effect of spring force, intermediate plate produces pretightning force to steel strand, and promptly intermediate plate is implemented stretch-draw to steel strand,
3) apply prestressed operation and finish after, treat that component strength reaches designing requirement, between prefabricated units and moveable anchor, cut off steel strand with destress, member and moveable anchor are separated,
4) intermediate plate lower port steel strand are slightly executed axial force upwards, intermediate plate moves upward with steel strand, is state shown in Figure 8, and intermediate plate produces loosening, and the residue steel strand in the moveable anchor are taken out by the middle pit of the stomach of spring bumper cover, deposits respectively.
Claims (6)
1. clip type anchorage tool for stretching single steel strand, it is characterized in that socket cover and sleeve are integrally welded, sleeve hypomere inwall is tapered, card has intermediate plate in the conical section, intermediate plate top shock mount, spring bumper cover is withstood in the spring upper end, and spring bumper cover is contained in the socket cover chute, spanner has two rank projections, has on the spring bumper cover to insert the jack of going up the rank projection.
2. clip type anchorage tool for stretching single steel strand according to claim 1 is characterized in that socket cover (1) periphery jagged (7).
3. clip type anchorage tool for stretching single steel strand according to claim 1 is characterized in that spring bumper cover (5) has and the corresponding plush copper of breach (8) of socket cover (1).
4. clip type anchorage tool for stretching single steel strand according to claim 1 is characterized in that the cone angle of sleeve (2) inwall taper is identical with the cone angle of intermediate plate (3), and cone angle is not less than 14 °.
5. clip type anchorage tool for stretching single steel strand according to claim 1 is characterized in that intermediate plate (3) termination is the conical surface (6), and the cone angle of the conical surface is 60 °.
6. with the method for the described clip type anchorage tool for stretching single steel strand stretching single steel strand of claim 1, it is characterized in that step is as follows:
1) assembling clip type anchorage tool for stretching single steel strand, pack into successively in the sleeve instrument intermediate plate and spring, the breach with spring bumper cover plush copper alignment sleeve cover periphery falls in the chute of socket cover spring bumper cover.The last rank projection of spanner is inserted the jack of spring bumper cover, rotation, till the nose portion of spring bumper cover be can't see,
2) steel strand are penetrated by the conical surface of intermediate plate termination, pass from intermediate plate, spring, spring bumper cover, and intermediate plate is implemented stretch-draw to steel strand,
3) apply prestressed operation and finish after, treat that component strength reaches designing requirement, between prefabricated units and moveable anchor, cut off steel strand with destress,
4) intermediate plate lower port steel strand are slightly executed axial force upwards, intermediate plate moves upward with steel strand, and intermediate plate produces loosening, and the residue steel strand in the moveable anchor are taken out by the middle pit of the stomach of spring bumper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100037309A CN101881081A (en) | 2010-01-04 | 2010-01-04 | Clip type anchorage tool for stretching single steel strand and method for stretching single steel strand by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100037309A CN101881081A (en) | 2010-01-04 | 2010-01-04 | Clip type anchorage tool for stretching single steel strand and method for stretching single steel strand by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881081A true CN101881081A (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100037309A Pending CN101881081A (en) | 2010-01-04 | 2010-01-04 | Clip type anchorage tool for stretching single steel strand and method for stretching single steel strand by using same |
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| CN (1) | CN101881081A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628625A (en) * | 2013-10-29 | 2014-03-12 | 中建三局建设工程股份有限公司 | Self locking device of stranded steel wire |
| CN104372738A (en) * | 2014-10-30 | 2015-02-25 | 柳州欧维姆机械股份有限公司 | Single-cable-replaceable type anchorage pre-stressed anchor device and installation and cable replacement methods thereof |
| WO2015109930A1 (en) * | 2014-01-24 | 2015-07-30 | 俞向阳 | Pre-tensioned centrifugal concrete pile provided with steel strand and manufacturing method |
| CN106679700A (en) * | 2017-02-10 | 2017-05-17 | 南京大学 | Simple and rapid anchoring method and apparatus of distributive sensing optical cable |
| CN109853392A (en) * | 2019-02-21 | 2019-06-07 | 中冶交通建设集团有限公司 | Magnetic force anchor restorer moves back anchor arrangement and its application method |
-
2010
- 2010-01-04 CN CN2010100037309A patent/CN101881081A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628625A (en) * | 2013-10-29 | 2014-03-12 | 中建三局建设工程股份有限公司 | Self locking device of stranded steel wire |
| CN103628625B (en) * | 2013-10-29 | 2016-08-17 | 中建三局建设工程股份有限公司 | Steel strand self-locking device |
| WO2015109930A1 (en) * | 2014-01-24 | 2015-07-30 | 俞向阳 | Pre-tensioned centrifugal concrete pile provided with steel strand and manufacturing method |
| CN104372738A (en) * | 2014-10-30 | 2015-02-25 | 柳州欧维姆机械股份有限公司 | Single-cable-replaceable type anchorage pre-stressed anchor device and installation and cable replacement methods thereof |
| CN104372738B (en) * | 2014-10-30 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Rope constructional method is changed in a kind of single replaceable anchor heavy stone used as an anchor prestress anchoraging device and installation thereof |
| CN106679700A (en) * | 2017-02-10 | 2017-05-17 | 南京大学 | Simple and rapid anchoring method and apparatus of distributive sensing optical cable |
| CN109853392A (en) * | 2019-02-21 | 2019-06-07 | 中冶交通建设集团有限公司 | Magnetic force anchor restorer moves back anchor arrangement and its application method |
| CN109853392B (en) * | 2019-02-21 | 2021-03-23 | 中冶交通建设集团有限公司 | Magnetic anchor releaser, anchor releasing equipment and using method thereof |
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Open date: 20101110 |