CN105649340B - The combing locator and its construction method of presstressed reinforcing steel lashing in built-in pipe - Google Patents

The combing locator and its construction method of presstressed reinforcing steel lashing in built-in pipe Download PDF

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Publication number
CN105649340B
CN105649340B CN201511018472.0A CN201511018472A CN105649340B CN 105649340 B CN105649340 B CN 105649340B CN 201511018472 A CN201511018472 A CN 201511018472A CN 105649340 B CN105649340 B CN 105649340B
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locator
reinforcing steel
presstressed reinforcing
pipe
combing
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CN105649340A (en
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吴佳雄
张俊杰
张子江
李海东
张程宝
朱敢为
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Ningbo Metallurgical Investigation & Design Research Co Ltd
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Ningbo Metallurgical Investigation & Design Research Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12Mounting of reinforcing inserts; Prestressing

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)

Abstract

The invention discloses the combing locator and construction method of presstressed reinforcing steel lashing in built-in pipe, its locator includes spindle pipe body (1), and spindle pipe body (1) sets tabula, and tabula, which is through with, wears muscle hole and logical slurry hole;The key of its method is:All combing locators are disposably sleeved on to the front end of presstressed reinforcing steel (7), draw presstressed reinforcing steel (7), the combing locator is connected with each presstressed reinforcing steel (7) with iron wire, gate (9) is decontroled again, so that the combing locator of front end is with entering built-in pipe (8), then reset gate (9), again follow-up combing locator is blocked, and enter combing locator and presstressed reinforcing steel (7) fixation of built-in pipe (8), repetition is opened a sluice gate barrier gate and is drawn so that all combs locator and enters built-in pipe (8).The locator and construction method can guarantee that each bar presstressed reinforcing steel (7) is evenly distributed and is parallel to each other in built-in pipe (8), do not wind during lashing, not laminated.

Description

The combing locator and its construction method of presstressed reinforcing steel lashing in built-in pipe
Technical field
The present invention relates to prestressed concrete construction technical field, is especially a kind of lashing in built-in pipe of presstressed reinforcing steel Combing locator and its construction method, more specifically, be in group's anchor bonded prestressed tendon lashing in built-in pipe, The construction method of device and the presstressed reinforcing steel lashing in built-in pipe of combing and positioning action is played to each presstressed reinforcing steel.
Background technology
In prestressed concrete construction, built-in pipe is laid with before concrete cast, which is generally bellows, Then cast concrete is formed the duct passed through for presstressed reinforcing steel, by more bonded prestressed tendons from duct i.e. pre- The opening of pipe laying rear end penetrates to be pierced by from the opening of front end again, i.e. lashing, to each tension of prestressed tendon and is anchored after lashing, then to Inject cement mortar in built-in pipe, by being bonded between presstressed reinforcing steel and cement mortar the effect of power, the tensioning are transmitted after stiff Journey is that at the same time more presstressed reinforcing steels are carried out with tensioning, therefore claims group's anchor.
Above-mentioned built-in pipe generally there are several elbows according to line style, single exemplified by the single beam constructed in this way The built-in pipe of bridge is generally connected in sequence by upper left crosspiece, Zuo Shuduan, lower crosspiece, right perpendicular section and upper right crosspiece, and above-mentioned Every two sections of pipelines between be by elbow connect.
During above-mentioned presstressed reinforcing steel passes through duct, due to presstressed reinforcing steel number is more, length is longer, duct it is curved The factors such as head is more, it is easy to so that mutually winding laminates each bar presstressed reinforcing steel during lashing.Once occur what winding was disturbed Situation, each bar presstressed reinforcing steel is easy for discontinuity during tensioning, causes the elongation of each bar presstressed reinforcing steel different, and then influence The accuracy of control stress for prestressing and actual measurement stretch value, the deviation especially surveyed between elongation and calculated value exceed Positive and negative 6 ﹪ of the limit as defined in specification, is the quality that anchoring construction will be influenced not permitted in specification.Moreover, at the same time pre- Each elbow of pipe laying, tends to the phenomenon for causing each bar presstressed reinforcing steel to offset to one side, this can directly affect follow-up Grouting procedure, causes the cement mortar for pouring into built-in pipe also to deviate uneven, or even also can on local presstressed reinforcing steel surface without slurry Influence the quality finally anchored.
The content of the invention
The invention solves a technical problem be to provide during one kind can guarantee that lashing each bar presstressed reinforcing steel pre- It is evenly distributed and is parallel to each other in pipe laying, do not wind, the combing locator of not presstressed reinforcing steel lashing in built-in pipe of laminated.
The technical solution of the present invention is to provide a kind of combing positioning of presstressed reinforcing steel lashing in built-in pipe Device, it includes the front and rear spindle pipe body being small at both ends and big in the middle, and the centre of spindle pipe body is equipped with a tabula, the pipe of spindle pipe body Outer wall is equipped with a plurality of logical stock tank that spindle pipe body rear end is penetrated into from spindle pipe body front end;It is through with tabula and multiple wears muscle hole With multiple logical slurry holes;Each hole wall for wearing muscle hole is equipped with the square groove of perforation tabula, and square groove is parallel with wearing muscle hole.
The invention solves another technical problem be to provide each bar presstressed reinforcing steel during one kind can guarantee that lashing and exist It is evenly distributed and is parallel to each other in built-in pipe, do not wind, the construction method of not presstressed reinforcing steel lashing in built-in pipe of laminated.
Another technical solution of the present invention is to provide a kind of construction party of presstressed reinforcing steel lashing in built-in pipe Method, its step include:
A, the number of required combing locator and every is determined according to the number of the length of presstressed reinforcing steel and pre-buried pipe bend A final position for combing locator in built-in pipe, and the combing locator of respective number is manufactured, and will each comb positioning Final position of the device in built-in pipe is converted into the distance with presstressed reinforcing steel front end;
All combing locators are disposably sleeved on to the front end of every presstressed reinforcing steel b, it is right on the tabula for combing locator Each wearing muscle hole makes different identification, and muscle is correctly worn on each combing locator so that every presstressed reinforcing steel can accurately pass through Hole, ensures that each bar presstressed reinforcing steel is parallel to each other, and makes eye-catching mark in the 0 o'clock position of each combing locator tabula;
The front end of each presstressed reinforcing steel is placed on to the opening of built-in pipe rear end, and the opening in built-in pipe rear end is set c, Two gates, the gap of two gates can allow each presstressed reinforcing steel to be passed into built-in pipe but be stuck in each combing locator pre-buried Pipe is outer;
D, advanced with the traction each presstressed reinforcing steel of wire saws in built-in pipe, until the distance of traction is equal near gate A combing locator and presstressed reinforcing steel front end apart from when, corrected with hand and comb locator to ensure on the combing locator Eye-catching mark be located at the top of tabula;
E, will be connected near gate combing locator iron wire with each presstressed reinforcing steel, connection mode is, often Two presstressed reinforcing steels correspond to an iron wire, and the part that same group of first presstressed reinforcing steel is located at tabula rear end by every iron wire is wound Go out more turn coils, the square groove for wearing muscle hole where being then passed through first presstressed reinforcing steel reaches the front side of tabula, then passes through same group Second presstressed reinforcing steel where wear muscle hole square groove reach tabula rear side, be finally located at tabula in second presstressed reinforcing steel The part of rear end winds out more turn coils;Every two presstressed reinforcing steels are connected by an iron wire with combing locator, and whole iron wires are indulged Traversed by is wrong, forms netted constraint;
F, gate is decontroled again so that follows presstressed reinforcing steel to be drawn into together near the combing locator of gate pre-buried Pipe, after the combing locator enters built-in pipe, gate resets, and follow-up combing locator is stuck in outside built-in pipe again;
G, after combing locator and entering built-in pipe, firmly halted by the ripple of built-in pipe is unsmooth, and each prestressing force Micro-shifting, each presstressed reinforcing steel are located at the combing locator tabula rear end and are wound in the part of coil just by iron wire forward for muscle continuation Can squeeze into it is corresponding wear muscle hole, the presstressed reinforcing steel for being wound with coil is finally interference fitted in and wears in muscle hole so that the combing positions Position fixation of the device on presstressed reinforcing steel;
H, continue to draw presstressed reinforcing steel, until the hauling distance of presstressed reinforcing steel is equal to next comb being stuck in outside built-in pipe Manage locator and presstressed reinforcing steel front end apart from when, correct the combing locator so that the eye-catching mark of the combing locator is located at The top of tabula, and be connected the combing locator with each presstressed reinforcing steel according to the connection method iron wire of step e, then put Throttle valve so that the combing locator follows presstressed reinforcing steel to enter built-in pipe, then resets gate, will subsequently comb positioning again Device is stuck in outside built-in pipe, and the combing locator for entering built-in pipe is unsmooth by built-in pipe ripple, causes to occur with each presstressed reinforcing steel With respect to the changing of the relative positions, finally so that the combing locator and presstressed reinforcing steel fixation;
I, repeat step h, until whole combing locators enters built-in pipe, is further continued for traction presstressed reinforcing steel, until The front end of presstressed reinforcing steel is pierced by the outlet of built-in pipe front end, and lashing process is completed.
Presstressed reinforcing steel of the present invention in built-in pipe the combing locator of lashing and its construction method compared with prior art, Has the following advantages and effect.
After the combing locator, lashing process is easy to operate, and energy each bar presstressed reinforcing steel of effective guarantee is in built-in pipe The process of lashing, which remains, to be parallel to each other, and avoids winding laminated, so as to ensure uniform force during each tension of prestressed tendon, elongation Amount is close, its deviation surveyed between stretch value and calculated value is met Criterion restriction requirement.It is additionally, since in built-in pipe Entry position being combed as combed one's hair, and be also provided with combing in each important node such as elbow of built-in pipe and determine Position device, therefore lashing process is smooth, speed of application is accelerated, moreover, each presstressed reinforcing steel is equal in each position distribution of built-in pipe It is even not deviate, so that grout distribution is uniform during follow-up grouting, add the bond-anchorage of each presstressed reinforcing steel and cement grout Effect, improves the integral construction quality of prestressing technique.
Brief description of the drawings
Fig. 1 is that presstressed reinforcing steel of the present invention combing locator of lashing in built-in pipe faces half section structural representation Figure.
Fig. 2 is the side structure schematic view of presstressed reinforcing steel of the present invention combing locator of lashing in built-in pipe.
Fig. 3 is that presstressed reinforcing steel of the present invention amplification side view structure of the tabula of the combing locator of lashing in built-in pipe is shown It is intended to.
Fig. 4 is presstressed reinforcing steel of the present invention after the tabula of the combing locator of lashing penetrates presstressed reinforcing steel in built-in pipe Amplify positive structure diagram.
Fig. 5 is structure diagram of the combing locator of presstressed reinforcing steel of the present invention lashing in built-in pipe in lashing.
1, spindle pipe body shown in figure, 2, tabula, 3, logical stock tank, 4, wear muscle hole, 5, logical slurry hole, 6, square groove, 7, prestressing force Muscle, 8, built-in pipe, 9, gate, 10, iron wire, 11, coil, 12, ripple, 13, concrete members, 14, traction rope.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the combing locator of presstressed reinforcing steel of the present invention lashing in built-in pipe, It includes the front and rear spindle pipe body 1 being small at both ends and big in the middle.The centre of spindle pipe body 1 is equipped with a tabula 2.The pipe of spindle pipe body 1 Outer wall is equipped with a plurality of logical stock tank 3 that 1 rear end of spindle pipe body is penetrated into from 1 front end of spindle pipe body, and a plurality of logical stock tank 3 is along fusiformis pipe The circumferential direction of body 1 is uniformly distributed.Be through with tabula 2 it is multiple wear muscle hole 4 and multiple logical slurry holes 5, multiple muscle holes 4 of wearing are positioned at same It is uniformly distributed on circumference and on the circumference, the center of the circumference is overlapped with the center of tabula 2, and multiple logical slurry holes 5 also are located at together It is uniformly distributed on one circumference and on the circumference, the center of the center of the circumference also with tabula 2 overlaps.Each wear muscle hole 4 Hole wall is equipped with the square groove 6 of perforation tabula 2, and square groove 6 is parallel with wearing muscle hole 4.Above-mentioned logical stock tank 3 and logical slurry hole 5 are provided to Avoid obstruction occurs and sets during follow-up slip casting.
The built-in pipe 8 refers to bellows, the length of spindle pipe body 1 be twice of 8 wavelength of built-in pipe between three times, Such design is to avoid spindle pipe body 1 from being blocked when advancing in built-in pipe 8 by the ripple 12 of built-in pipe 8.Among spindle pipe body 1 The maximum outside diameter of position is smaller 1~2mm than the minimum diameter of built-in pipe 8 and both sizes allow the deviation for having 1m or so, also It is to say, if the minimum diameter of built-in pipe 8 is 60mm, the maximum outside diameter of spindle pipe body 1 is 57~58mm.Before spindle pipe body 1 The minimum outer diameter at both ends is smaller 1~2mm than the maximum outside diameter in centre position afterwards.Such design causes spindle pipe body 1 in built-in pipe 8 Can slightly it be blocked during middle advance, but tractive force increase is then moved on by the traction of presstressed reinforcing steel 7 again.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the construction method of presstressed reinforcing steel of the present invention lashing in built-in pipe, it is walked It is rapid as follows.
The preparation before lashing is first carried out, that is, lays built-in pipe 8, then pours into a mould concrete members 13, is allowed to form confession The duct that presstressed reinforcing steel 7 passes through.Start formal lashing again.
A, according to the number of 8 elbow of the length of presstressed reinforcing steel 7 and built-in pipe determine required combing locator number and Each final position for combing locator in built-in pipe 8, and the combing locator of respective number is manufactured, and will each comb and determine Final position of the position device in built-in pipe 8 is converted into the distance of the combing locator and 7 front end of presstressed reinforcing steel.Comb locator Number and final position are designed according to the concrete structure constructed, such as construction prestressing force single beam, are just only needed Each elbow of the built-in pipe 8 of single beam, which is set, combs locator, or the beam of construction super-span, in addition to elbow part One combing locator is set if at interval of certain distance such as 5m.
All combing locators are disposably sleeved on to the front end of every presstressed reinforcing steel 7, on the tabula 2 for combing locator b, Different identification is made to each muscle hole 4 of wearing, so that every presstressed reinforcing steel 7 can accurately be passed through on each combing locator correctly Muscle hole 4 is worn, ensures that each bar presstressed reinforcing steel 7 is parallel to each other, 4 reference number of muscle hole such as is worn to tabula 2 each, it is ensured that certain root is pre- Stress rib 7 passes through No. 1 Chuan Jin hole 4 of each tabula 2, and No. 2 of another presstressed reinforcing steel 7 through each tabula 2 wear muscle Hole 4.And make eye-catching mark in the 0 o'clock position of each combing locator tabula 2;Such as marked with red point.
The front end of each presstressed reinforcing steel 7 is placed on to the opening of 8 rear end of built-in pipe c, and in the opening of 8 rear end of built-in pipe Two gates 9 are set, and the gaps of two gates 9 can allow each presstressed reinforcing steel 7 to be passed into built-in pipe 8 but by each combing locator It is stuck in outside built-in pipe 8;Two gates 9 can be slidably fitted on same slide, and manually mobile gate 9 is with two gates 9 of adjusting Distance, makes its satisfaction allow combing locator to pass through or block combing locator and only allows presstressed reinforcing steel 7 to pass through.
D, each presstressed reinforcing steel 7 is drawn with traction rope 14 in built-in pipe 8 to advance, until traction distance be equal near One combing locator of gate 9 and 7 front end of presstressed reinforcing steel apart from when, corrected with hand and comb locator to ensure that the combing is determined For example red point of eye-catching mark on the device of position is located at the top of tabula 2.
E, will be connected near gate 9 combing locator iron wire 10 with each presstressed reinforcing steel 7, connection mode It it is one group for, every two presstressed reinforcing steels 7, every group of two presstressed reinforcing steel 7 corresponds to an iron wire 10, and every iron wire 10 is by the of same group The part that a piece presstressed reinforcing steel 7 is located at 2 rear end of tabula winds out more turn coils 11, is then passed through where first presstressed reinforcing steel 7 The square groove 6 for wearing muscle hole 4 reaches the front side of tabula 2, then passes through with the side for wearing muscle hole 4 where second presstressed reinforcing steel 7 of group Groove 6 reaches the rear side of tabula 2, and the part that 2 rear end of tabula is finally located in second presstressed reinforcing steel 7 winds out more turn coils 11; Every two presstressed reinforcing steels 7 are connected by an iron wire 10 with combing locator, and whole iron wires 10 are crisscross, form netted constraint, In this way, so that fixed more firm between each presstressed reinforcing steel 7 and combing locator in follow-up step g.
F, gate 9 is decontroled again so that the combing locator near gate 9 follows presstressed reinforcing steel 7 to be drawn into together Built-in pipe 8, after the combing locator enters built-in pipe 8, gate 9 resets, and is again stuck in follow-up combing locator pre-buried Outside pipe 8.
G, when comb locator enter built-in pipe 8 after, by the ripple 12 of built-in pipe 8 it is unsmooth live halt, and each in advance Stress rib 7 continues micro-shifting forward, that is, move forward for very little, only several millimeters, length of 7 more than ten meters with respect to presstressed reinforcing steel It can almost ignore, each presstressed reinforcing steel 7 is located at 2 rear end of combing locator tabula and the portion of coil 11 is wound in by iron wire 10 Point will squeeze into it is corresponding wear muscle hole 4, final be interference fitted in of presstressed reinforcing steel 7 for being wound with coil 11 is worn in muscle hole 4 so that should Position fixation of the locator on presstressed reinforcing steel 7 is combed, then the combing being secured to when presstressed reinforcing steel 7 is advanced by traction is determined Position device can be with 7 advanced in unison of presstressed reinforcing steel.
H, continue to draw presstressed reinforcing steel 7, until the hauling distance of presstressed reinforcing steel 7 is equal to next be stuck in outside built-in pipe 8 Namely this moment near gate 9 that comb locator and 7 front end of presstressed reinforcing steel apart from when, correct the combing locator So that the eye-catching mark of the combing locator is located at the top of tabula 2, and should with iron wire 10 according to the connection method of step e Comb locator to be connected with each presstressed reinforcing steel 7, then decontrol gate 9 so that it is pre- that the combing locator follows presstressed reinforcing steel 7 to enter Pipe laying 8, then resets gate 9, the follow-up locator that combs is stuck in outside built-in pipe 8 again, and the combing for entering built-in pipe 8 positions Device is unsmooth by 8 ripple 12 of built-in pipe, causes the opposite changing of the relative positions occurs with each presstressed reinforcing steel 7, that is, combs that locator is motionless and prestressing force The micro-shifting forward of muscle 7, finally so that the combing locator and 7 fixation of presstressed reinforcing steel.
I, repeat step h, until whole combing locators enters built-in pipe 8, is further continued for traction presstressed reinforcing steel 7, directly The outlet of 8 front end of built-in pipe is pierced by the front end of presstressed reinforcing steel 7, lashing process is completed.

Claims (2)

  1. A kind of 1. combing locator of presstressed reinforcing steel lashing in built-in pipe, it is characterised in that:It include front and rear two it is small, in Between big spindle pipe body (1), the centre of spindle pipe body (1) is equipped with a tabula (2), and the pipe outer wall of spindle pipe body (1) is equipped with The a plurality of logical stock tank (3) that spindle pipe body (1) rear end is penetrated into from spindle pipe body (1) front end;It is through with tabula (2) and multiple wears muscle Hole (4) and multiple logical slurries hole (5);Each hole wall for wearing muscle hole (4) is equipped with the square groove (6) of perforation tabula (2), square groove (6) with It is parallel to wear muscle hole (4).
  2. A kind of 2. construction method of presstressed reinforcing steel lashing in built-in pipe, it is characterised in that:Its step includes:
    A, according to the number of the length of presstressed reinforcing steel (7) and built-in pipe (8) elbow determine required combing locator number and Each final position for combing locator in built-in pipe (8), and the combing locator of respective number is manufactured, and will each comb Final position of the locator in built-in pipe (8) is converted into and the distance of presstressed reinforcing steel (7) front end;
    All combing locators are disposably sleeved on to the front end of every presstressed reinforcing steel (7), on the tabula (2) for combing locator b, Different identification is made to each muscle hole (4) of wearing, so that every presstressed reinforcing steel (7) can accurately be passed through on each combing locator just True wears muscle hole (4), ensures that each bar presstressed reinforcing steel (7) is parallel to each other, and at 0 o'clock of each combing locator tabula (2) Make eye-catching mark in position;
    The front end of each presstressed reinforcing steel (7) c, is placed on to the opening of built-in pipe (8) rear end, and opening in built-in pipe (8) rear end Two gates (9) mouthful are set, and the gaps of two gates (9) can allow each presstressed reinforcing steel (7) to be passed into built-in pipe (8) but will be each Comb locator and be stuck in built-in pipe (8) outside;
    D, the advance in built-in pipe (8) of each presstressed reinforcing steel (7) is drawn with traction rope (14), is most leaned on until the distance of traction is equal to One combing locator of nearly gate (9) and presstressed reinforcing steel (7) front end apart from when, corrected with hand and comb locator to ensure this Comb the top that the eye-catching mark on locator is located at tabula (2);
    E, will be connected near a combing locator iron wire (10) of gate (9) with each presstressed reinforcing steel (7), connection mode An iron wire (10) is corresponded to for, every two presstressed reinforcing steels (7), and every iron wire (10) is by same group of first presstressed reinforcing steel (7) position More turn coils (11) are wound out in the part of tabula (2) rear end, are then passed through wearing muscle hole (4) where first presstressed reinforcing steel (7) Square groove (6) reach tabula (2) front side, then pass through with group second presstressed reinforcing steel (7) where the side for wearing muscle hole (4) Groove (6) reaches the rear side of tabula (2), and the part that tabula (2) rear end is finally located in second presstressed reinforcing steel (7) winds out multi-turn Coil (11);Every two presstressed reinforcing steels (7) are connected by an iron wire (10) with combing locator, and whole iron wires (10) are handed in length and breadth Mistake, forms netted constraint;
    F, decontrol gate (9) again so that near the combing locator of gate (9) follow presstressed reinforcing steel (7) drawn together into Enter built-in pipe (8), after the combing locator enters built-in pipe (8), gate (9) resets, again by follow-up combing locator It is stuck in built-in pipe (8) outside;
    G, after combing locator and entering built-in pipe (8), firmly halted by the ripple (12) of built-in pipe (8) is unsmooth, and each Micro-shifting, each presstressed reinforcing steel (7) are located at combing locator tabula (2) rear end and by iron wires forward for presstressed reinforcing steel (7) continuation (10) be wound in the part of coil (11) will squeeze into it is corresponding wear muscle hole (4), be wound with the presstressed reinforcing steel (7) of coil (11) most It is interference fitted in and is worn in muscle hole (4) eventually so that position fixation of the combing locator on presstressed reinforcing steel (7);
    H, continue to draw presstressed reinforcing steel (7), until the hauling distance of presstressed reinforcing steel (7) is stuck in built-in pipe (8) equal to next Outer combing locator and presstressed reinforcing steel (7) front end apart from when, correct the combing locator and cause waking up for the combing locator Target know positioned at tabula (2) the top, and according to step e connection method with iron wire (10) by the combing locator with it is each Presstressed reinforcing steel (7) connects, then decontrols gate (9) so that and the combing locator follows presstressed reinforcing steel (7) to enter built-in pipe (8), with Gate (9) is resetted afterwards, the follow-up locator that combs is stuck in built-in pipe (8) outside again, and enter the combing locator of built-in pipe (8) It is unsmooth by built-in pipe (8) ripple (12), cause the opposite changing of the relative positions occurs with each presstressed reinforcing steel (7), finally so that the combing locator With presstressed reinforcing steel (7) fixation;
    I, repeat step h, until whole combing locators enters built-in pipe (8), is further continued for traction presstressed reinforcing steel (7), directly The outlet of built-in pipe (8) front end is pierced by the front end of presstressed reinforcing steel (7), lashing process is completed.
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CN106284096A (en) * 2016-09-27 2017-01-04 中国三冶集团有限公司 A kind of prestressed pore passage closed position determines device and lashing method

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GB1394362A (en) * 1971-05-06 1975-05-14 Johnson Firth Brown Ltd Pre-stressing tendon
KR20100069859A (en) * 2008-12-17 2010-06-25 재단법인 포항산업과학연구원 Dead anchorage device for prestressed concrete girder
CN201447878U (en) * 2009-01-04 2010-05-05 万国强 Sleeve type steel strand beam prestressed tendon connector
CN201843350U (en) * 2010-10-08 2011-05-25 天津滨海盈信投资有限公司 Profile wire combing board used for weaving steel strands
CN203411912U (en) * 2013-10-16 2014-01-29 陕西华山路桥工程有限公司 Steel strand bundle combing, knitting and lashing device
CN203613722U (en) * 2013-12-12 2014-05-28 本溪银龙预应力材料有限公司 Arc-shaped prestress steel pipe
CN103696537A (en) * 2013-12-30 2014-04-02 天津鑫坤泰预应力专业技术有限公司 Finished product steel strand bundle with fixable carding board
CN205243033U (en) * 2015-12-30 2016-05-18 宁波冶金勘察设计研究股份有限公司 Prestressing tendons wears to restraint carding locator of usefulness in pre -buried pipe

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