CN104999558A - Strand threading device for tensioning strand steel harness of 30-120 m for long and large multi-segmental assembled box beam - Google Patents
Strand threading device for tensioning strand steel harness of 30-120 m for long and large multi-segmental assembled box beam Download PDFInfo
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- CN104999558A CN104999558A CN201510447088.6A CN201510447088A CN104999558A CN 104999558 A CN104999558 A CN 104999558A CN 201510447088 A CN201510447088 A CN 201510447088A CN 104999558 A CN104999558 A CN 104999558A
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- Prior art keywords
- strand
- pull rod
- segmental
- drawing bar
- anchor cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a strand threading device for tensioning a strand steel harness of 30-120 m for a long and large multi-segmental assembled box beam. The strand threading device comprises an anchor sleeve (1) and a pull rod (2). The anchor sleeve (1) is a shell, wherein the two ends of the shell are provided with holes, and the cross section of shell is a bullet-head-shaped variable cross section changing from small to big. The pull rod (2) comprises a pull ring (2-1) at the front end and triangle blocks (2-3), wherein the rear ends of the triangle blocks (2-3) are radially arranged along a rod body (2-2) of the pull rod (2). When the strand threading device is used, the pull rod (2) is arranged in the center of the woven strand steel harness and sleeved with the anchor sleeve (1). When the pull rod (2) is pulled, the strand steel harness is compacted onto the inner wall of the anchor sleeve (1) by the triangle blocks of the pull rod, and then the strand steel harness and the strand threading device are integrated; the pull rod is pulled to penetrate through a reserved pore channel in the beam, and then the strand steel harness smoothly passes through the multi-segmental assembled box beam. When the strand steel harness is led out of the pore channel, an operator can use a hammer to tap the pull ring (2-1) of the pull rod (2), and then the strand steel harness can come out of the anchor sleeve (1) smoothly.
Description
Technical field
The present invention relates to a kind of penetrating device of prestressing force drawing steel stranded wire wire harness, the multi-segmental be applicable in Bridge Construction is grown up the whole hole of 30m to 120m prestressing force drawing steel stranded wire wire harness of assembled case beam or porous lashing operation.
Background technology
At present, the lashing of the prestressing force drawing steel stranded wire of precast beam sheet adopts steel stranded wire threading machine mostly.Its operation principle compresses steel strand wires with a pair wheels, driven, forced by steel strand wires to push in the steel strand wires reserving hole channel of press-in beam sheet, until steel strand wires pass from the other end in duct by motor.The method is applicable to the lashing of the prefabricated whole hole beam sheet steel strand wires in beam making field.Because the reserving hole channel of whole hole beam sheet is one section of complete bellows, inner wall smooth, continuously, the equiprobable obstacle of faying face between the beam sheet not having a spliced girder.But the assembled case beam beam sheet of multi-segmental is just different, and its whole hole beam sheet is formed by some prefabricated section assemblings, due to a variety of causes such as foozles, causes intersegmental duct not fit like a glove, the possibility even had dislocation.At this moment, use the threader of steel strand wires just easily to cause steel strand wires to penetrate and be obstructed, the adjustment repeatedly repeatedly exiting to enter again of just having to, lashing difficulty, not only takes a lot of work but also time-consuming.
Summary of the invention
The technical problem to be solved in the present invention is: the penetrating device of 30m to 120m prestressing force drawing steel stranded wire wire harness providing a kind of assembled case beam of growing up for multi-segmental, energy quick braiding bundle steel strand wires, the whole hole steel wire bundle that volume can be made to restraint is grown up quickly through the assembled multi-segmental completed the duct of steel strand bundle of assembled case beam 30m to 120m, greatly improves lashing speed and the quality of this kind of assembled case joist steel twisted wire wire harness.
Technical scheme of the present invention is: a kind of penetrating device of 30m to 120m prestressing force drawing steel stranded wire wire harness of assembled case beam of growing up for multi-segmental, comprises anchor cover and drawing bar; Anchor cover is for the ascending change of area of section is as bullet-shaped variable cross-section and the housing of two ends perforate; Drawing bar comprises the draw ring of front end, and the corner block that rear end is arranged along the shaft section radial direction of drawing bar, between two opening diameters that drawing bar maximum cross-section diameter overlaps between anchor.Anchor cover and the supporting the use of drawing bar, object be by easy for the wire harness of prestressing force drawing steel stranded wire, be combined as a whole with this penetrating device flexibly, securely, the application traction steel wire lain on pull bar ring passes rapidly through the stretch-draw duct of multi-segmental beam sheet, the tractive steel wire rope on pull bar ring is lain in by hoist engine drawing, make whole bundle prestress wire pass through multi-segmental fast to grow up the prefabricated duct of assembled case beam, complete the lashing operation of whole hole steel strand wires; After lashing completes, rap anchor cover, just can easily steel wire bundle be separated with this penetrating device.The change that anchor cover adopts area of section ascending is as the pattern of sub warhead, drawing bar end is welded with corner block, its objective is and steel wire bundle is compressed by the corner block of pull bar gradually in anchor cover, steel wire bundle and penetrating device are combined as a whole, by the draw ring of tractive penetrating device front end, make prestressing tendon fast, easily pass through multi-segmental to grow up assembled case beam, complete more difficult lashing operation.
In principle, there is the Rotational Symmetry part anchor cover all according to the invention modeling requirement of certain taper, as one the simplest anchor cover form, anchor cover comprises cylindrical surface portion and arc-shaped curved surface part, the similar fusiform sub warhead of this moulding, in two end face perforates of anchor cover, opening diameter small one and large one, macropore is for inserting steel strand wires, and aperture, for passing the front end draw ring of drawing bar, avoids again the corner block of drawing bar end to pass simultaneously.Arc-shaped curved surface part can adopt overall stamping parts, and split weldment also can be adopted to form.
Anchor cover adopts seamless steel pipe or seamed steel pipe to make, and prerequisite all needs the intensity of guarantee anchor cover and makes simple.
The corner block quantity of drawing bar is no less than 3 pieces, and is evenly arranged about the rotation of shaft axle, and the small bore end of corner block is by draw ring end.The quantity of corner block can according to the steel strand wires quantity penetrated, and perforate size and the inner space size of anchor cover determine, its objective is that adjoint drawing bar passes anchor cover, the corner block of drawing bar end progressively can compress steel wire bundle.The changes of section trend (ascending) of corner block is consistent with the changes of section trend that anchor overlaps.The shaft rotation arranged along drawing bar of corner block is evenly arranged welding, and such as 3 pieces of 120 degree, corner block interval distributions, central axis is shaft axle.
The present invention is applicable in engineering construction
manysections is grown up the whole hole lashing operation of assembled case beam, and lashing length even reaches 120m; Can to many steel strand wires quick braiding bundles, volume can be made to restraint whole hole steel wire bundle quickly through the duct of the assembled each beam sections completed, work efficiency improves greatly.Design feature of the present invention is: comprise two parts, and a part is anchor cover, and another part is drawing bar.Anchor cover adopts high-quality steel pipe manufacturing, and front end is formed bullet-headed, stays an aperture, and the pull bar being convenient to drawing bar passes.
In order to overcome the steel stranded wire penetrating adapter difficulty of threader on section assembling beam sheet of steel strand wires, the invention provides a kind of penetrating device of 30 to 120m steel wire bundle of multi-segmental spliced girder sheet, this device not only manufactures simple, easy and simple to handle, and the beam sheet of assembled case beam of fast steel wire bundle being grown up by multi-segmental smoothly, not by the impact of duct error between multi-segmental beam.
The propelling movement of traditional steel wire bundle is clamp-oned method and is changed into drawing method by the present invention, adopt self-control drawing penetrating device, this device and steel wire bundle are fixed, be placed in the upstream end of assembled case beam intending passing through, then by hoist engine with by the steel wire rope in duct, by penetrating device and steel wire bundle entirety, drawing from duct has been drawn through.Self-control drawing penetrating device is mainly divided into two parts, and a part is anchor cover, and another part is drawing bar.Anchor cover adopts high-quality steel pipe manufacturing, and front end will form sub warhead pattern, stays an aperture, and the draw ring being convenient to drawing bar passes smoothly.Such as, the reinforcement fabrication of φ 12mm selected by drawing bar, and one end forms closed draw ring, and one end is made into the inverted triangle block of band tapering, and its operation principle is: first drawing bar is placed in the steel wire bundle center of compiling and having restrainted, hits with a hammer, set up by anchor cover.When drawing bar is by pulling force, steel strand wires by compacting tightly on anchor cover inwall, pulling force is larger, the frictional force formed between anchor cover inwall and steel strand wires is also larger, penetrating device and steel wire bundle are combined as a whole, traction penetrating device is by the reserving hole channel of multi-segmental spliced girder sheet, then steel wire bundle also completes with regard to smooth lashing.After steel wire bundle is drawn duct, as long as knock drawing bar draw ring one end gently with hammer, steel strand wires just can be deviate from smoothly in anchor cover.
The present invention between beam sheet sections duct laminating incomplete time; homemade drawing lashing facility device and circular arc overcoat thereof can Automatic clearances and revise the duct of steel strand wires of each assembled case beam; steel strand wires are passed through smoothly; and the frictionally damage of available protecting steel strand wires; its structure is simple, and operation is very easy.
Accompanying drawing explanation
Fig. 1 is profile construction schematic diagram of the present invention;
Fig. 2 is the distribution schematic cross-sections of 15 bundle steel strand wires in anchor cover of the present invention;
Fig. 3 is anchor of the present invention cover generalized section;
Fig. 4 is drawing bar organigram of the present invention.In figure: 1 anchor cover, 2 drawing bars.
Detailed description of the invention
As shown in figures 1-4, a kind of penetrating device of 30m to 120m prestressing force drawing steel stranded wire wire harness of assembled case beam of growing up for multi-segmental, comprise anchor cover 1 and drawing bar 2, anchor cover 1 is that the ascending change of area of section is as bullet-shaped variable cross-section and the housing of two ends perforate, specifically, anchor cover 1 comprises cylindrical surface portion and arc-shaped curved surface part.Drawing bar 2 comprises the draw ring 2-1 of front end, and rear end arranges 3 pieces of corner block 2-3 along the shaft 2-2 radial direction of drawing bar 2, and corner block 2-3 is evenly arranged about shaft 2-2 axle Rotational Symmetry.Drawing bar 2 maximum cross-section diameter is between two opening diameters of anchor cover 1.
In Fig. 1, drawing bar 2 overlaps 1 right-hand member perforate from draw ring end from anchor and passes, but drawing bar 2 end does not overlap 1 right-hand member perforate by anchor, is separated to prevent from invar bundle from getting loose causing drawing bar 2 and anchor to overlap 1.
In Fig. 2, be the distribution schematic diagrams of 15 steel strand wires in anchor cover 1, because drawing bar 2 end has back taper (corner block 2-3), under traction state, on steel strand wires, effect has pressure, makes to form enough frictional force between each steel strand wires, is connected by steel wire bundle form entirety with apparatus of the present invention.
In Fig. 3, anchor cover 1 is by the high-quality steel pipe manufacturing of external diameter 76mm, wall thickness 3.5mm, and the curved curved surface of end, leaves the aperture of diameter 38mm.
In Fig. 4, drawing bar 2 is made by the round steel of diameter 12mm, and head curves draw ring and welds, and afterbody along uniform welding around shaft 2-2, forms back taper with 3 pieces of little iron plates of triangle.
The operating procedure of anchor cover 1 and drawing bar 2 is as follows:
1. the steel strand wires that drawing bar 2 and blanking complete are carried out volume to restraint, drawing bar 2 is placed in steel wire bundle center, and draw ring end exposes;
2. by tied silk, steel wire bundle is tied up, guarantee that drawing bar 2 and steel wire bundle are not loose, and at interval of 1 meter, steel wire bundle is tied up;
3. be inserted in from the draw ring end of drawing bar 2 by anchor cover 1, adjustment steel wire bundle, knocks anchor gently with hammer and overlaps 1 head, makes anchor overlap 1 and is inserted in completely by steel wire bundle.
Claims (4)
1. a multi-segmental is grown up the penetrating device of 30 to 120 meters of tension steel strand bundles of assembled case beam, it is characterized in that: comprise anchor cover (1) and drawing bar (2), described anchor cover (1) is for the ascending change of area of section is as bullet-shaped variable cross-section and the housing of two ends perforate, described drawing bar (2) comprises the draw ring (2-1) of front end, and rear end is along the corner block (2-3) of shaft (2-2) the radial direction setting of drawing bar (2), drawing bar (2) maximum cross-section diameter is between two opening diameters of anchor cover (1).
2. multi-segmental according to claim 1 is grown up the penetrating device of 30 to 120 meters of tension steel strand bundles of assembled case beam, it is characterized in that: described anchor cover (1) comprises cylindrical surface portion and arc-shaped curved surface part.
3. multi-segmental according to claim 2 is grown up the penetrating device of 30 to 120 meters of tension steel strand bundles of assembled case beam, it is characterized in that: described anchor cover (1) adopts steel pipe manufacturing.
4. multi-segmental according to claim 1 is grown up the penetrating device of 30 to 120 meters of tension steel strand bundles of assembled case beam, it is characterized in that: described corner block (2-3) quantity is no less than 3 pieces, and be evenly arranged about the rotation of shaft (2-2) axle, and the small end of corner block is by draw ring (2-1) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447088.6A CN104999558A (en) | 2015-07-28 | 2015-07-28 | Strand threading device for tensioning strand steel harness of 30-120 m for long and large multi-segmental assembled box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447088.6A CN104999558A (en) | 2015-07-28 | 2015-07-28 | Strand threading device for tensioning strand steel harness of 30-120 m for long and large multi-segmental assembled box beam |
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| Publication Number | Publication Date |
|---|---|
| CN104999558A true CN104999558A (en) | 2015-10-28 |
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|---|---|---|---|
| CN201510447088.6A Pending CN104999558A (en) | 2015-07-28 | 2015-07-28 | Strand threading device for tensioning strand steel harness of 30-120 m for long and large multi-segmental assembled box beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881736A (en) * | 2016-06-04 | 2016-08-24 | 中铁十九局集团第五工程有限公司 | Post-tensioned prestressed box girder steel strand threading device and threading method thereof |
| CN107059643A (en) * | 2017-06-08 | 2017-08-18 | 中铁建大桥工程局集团第四工程有限公司 | A kind of steel hinge line lashing accessory system and its application method |
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| CN2249772Y (en) * | 1996-03-22 | 1997-03-19 | 石家庄市市政建设总公司 | Steel wire bounder |
| US5766648A (en) * | 1996-10-21 | 1998-06-16 | Cxt Incorporated | Road transportable segmental concrete railroad tie long-line production system |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| WO2011008783A1 (en) * | 2009-07-14 | 2011-01-20 | 21St Century Structures, Llc | Movable pallet and method of use |
| CN203145476U (en) * | 2013-03-20 | 2013-08-21 | 中国核工业华兴建设有限公司 | Prestress steel strand penetrating and guiding device |
| CN203247855U (en) * | 2013-04-15 | 2013-10-23 | 葛洲坝集团第五工程有限公司 | Fast tractor for annular prestressed stranded steel wire |
| CN204894206U (en) * | 2015-07-28 | 2015-12-23 | 中铁五局（集团）有限公司 | 30 to 120 meters stretch -draw steel strand wires that case roof beam was assembled greatly to multisection head are restrainted wears to get one's things ready and puts |
-
2015
- 2015-07-28 CN CN201510447088.6A patent/CN104999558A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2249772Y (en) * | 1996-03-22 | 1997-03-19 | 石家庄市市政建设总公司 | Steel wire bounder |
| US5766648A (en) * | 1996-10-21 | 1998-06-16 | Cxt Incorporated | Road transportable segmental concrete railroad tie long-line production system |
| WO2011008783A1 (en) * | 2009-07-14 | 2011-01-20 | 21St Century Structures, Llc | Movable pallet and method of use |
| CN101660354A (en) * | 2009-09-11 | 2010-03-03 | 中铁大桥局集团第五工程有限公司 | Prestress steel strand penetrating device |
| CN203145476U (en) * | 2013-03-20 | 2013-08-21 | 中国核工业华兴建设有限公司 | Prestress steel strand penetrating and guiding device |
| CN203247855U (en) * | 2013-04-15 | 2013-10-23 | 葛洲坝集团第五工程有限公司 | Fast tractor for annular prestressed stranded steel wire |
| CN204894206U (en) * | 2015-07-28 | 2015-12-23 | 中铁五局（集团）有限公司 | 30 to 120 meters stretch -draw steel strand wires that case roof beam was assembled greatly to multisection head are restrainted wears to get one's things ready and puts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881736A (en) * | 2016-06-04 | 2016-08-24 | 中铁十九局集团第五工程有限公司 | Post-tensioned prestressed box girder steel strand threading device and threading method thereof |
| CN107059643A (en) * | 2017-06-08 | 2017-08-18 | 中铁建大桥工程局集团第四工程有限公司 | A kind of steel hinge line lashing accessory system and its application method |
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Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |