CN104675121A - Discharging weaving rack of prestressed steel strand - Google Patents
Discharging weaving rack of prestressed steel strand Download PDFInfo
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- CN104675121A CN104675121A CN201310635152.4A CN201310635152A CN104675121A CN 104675121 A CN104675121 A CN 104675121A CN 201310635152 A CN201310635152 A CN 201310635152A CN 104675121 A CN104675121 A CN 104675121A
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- steel strand
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- weaving
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Abstract
The invention discloses a discharging weaving rack of a prestressed steel strand, and relates to the field of the prestressed beam component of bridge engineering post-tensioning method construction and building long span prestressed structure. The discharging weaving rack of the prestressed steel strand comprises an I-steel body platform, a feeding steel pipe, a cutting machine pedestal, comb-shaped teeth, a weaving device, a slot and a discharging span marking; the feeding steel pipe is welded in a I-steel channel at one end of the I-steel body platform; the side edge of one end of the I-steel body platform is welded with the cutting machine pedestal; the cutting machine pedestal is fixed with a cutting machine; a row of the comb-shaped teeth are welded in the I-steel channel of the I-steel body platform in every two meters, and the other end of the I-steel body platform is provided with the slot; the weaving device is arranged in the slot; and the discharging span marking is marked in the I-steel channel. The discharging weaving rack of the prestressed steel strand is capable of accurately discharging the steel strand, avoiding the pollution, smoothing the weaving (namely relatively fixing the steel strand position of each section in the pore passages during the weaving so as to ensure the straight of the steel strand), and immediately weaving in the pore passages.
Description
Technical field
What the present invention relates to is bridge engineering prestressed girder board member and the large-span prestressed construction applications of Building class of post-tensioned construction, is specifically related to a kind of prestress wire blanking and compiles bundle stand.
Background technology
Bridge engineering and longspan structure engineering adopt in utilizing prestressing force post tensioning method construction, precast beam class is (as case beam, T beam, hollowcore slab etc.) and large span component (as bent cap etc.) pre-stress construction time, construction technology is: reserve prestressed pore passage when beam slab or element precast, after concrete strength reaches and can carry out the requirement of strength of prestressed stretch-draw, carry out sub-thread steel wire, and then to multiply steel strands-woven bundle (the steel strand number of share of stock of designing requirement), to compiling the prestressing tendon restrainted, carry out duct lashing, then prestress wire stretch-draw is completed, hole path pressure grouting and termination sealing off and covering anchorage.
Traditional prestress wire blanking and compile Shu Fangfa be: reinforcing steel processing shed sclerosis ground pull-up chi to steel strand span, cutting, manually to steel strand arrange compile bundle, then by compile bundle after steel strand manually lift to member aperture to be worn.The drawback of such operation mainly contain following some: 1, formed because sub-thread steel strand are tangled by many steel wires, therefore, the characteristic of steel strand has been doomed that it easily bends, is wound around, turns round feature of fried dough twist and pressure bullet; When applying, the straight degree of single flexible steel strand is primarily of manually putting formation, and go curved elimination mainly by manually completing to " snake ", impact accurate blanking, cutting length is often greater than design length, easily causes steel strand to waste; 2, wait to compile the sub-thread steel strand of bundle by effect of weight, divide often on the ground, will compile Shu Quan by manually completing by position, ground tackle section hole, the work quality of operative is difficult to ensure, arranges in process of binding, is easy to be formed in bundle be wound around; 3, compiling the steel wire bundle restrainted is transported in the process of component hole position to be worn, must by manually shouldering, lifting, and the Shu Rongyi of volume scatters, and due to bending in transportation, torsion, easily causes in bundle and be wound around; 4, in blanking, volume bundle and transportation, steel strand directly contact with ground, are easily subject to the pollution of dust, mud, water, oil stain etc., impact the prestressing force durability of steel strand; 5, be difficult to ensure by artificial blanking, the operation quality of compiling bundle, and working strength is large, at the bottom of production efficiency.
Require according to " highway bridge and culvert construction technique normalizing " (JTJ/T F50-2011): " after whole presstressed reinforcing steels intrafascicular for steel should being compiled bundle, entirety penetrates in duct ", " strand pulling machine can be adopted to be penetrated in duct by root to steel strand, but should ensure that it in duct, mutual winding does not occur ".In fact, penetrate the drawback of steel strand clearly by root, be easily mutually wound around, and after wear more difficultly to wear, therefore generally to use less; According to tensioning process, in individual steel strand integral tension process, actual is the stressed stretch-draw at the same time of per share steel strand, therefore the straight degree of steel strand is required it is very high, otherwise, easily cause steel strand discontinuity, indivedual steel twisted-line tension-force deficiency, over-proof elongation indicator, occur the phenomenons such as fracture of wire.
Summary of the invention
For the deficiency that prior art exists, the present invention seeks to be to provide a kind of prestress wire blanking to compile bundle stand, the accurate blanking of steel strand can be made, from pollution, compile bundle (namely all meeting each section steel strand position in duct during lashing relatively fixing straight to ensure steel strand), instant duct lashing smoothly.
To achieve these goals, the present invention realizes by the following technical solutions: bundle stand is compiled in a kind of prestress wire blanking, comprise i iron main platform, charging steel pipe, cutting machine pedestal, comb row tooth, compile bundle device, draw-in groove and span graticule, charging steel pipe is welded with in the I-shaped steel tank of i iron main platform one end, the side of i iron main platform one end is welded with cutting machine pedestal, cutting machine pedestal is fixed with cutting machine, the capable tooth of YIPAISHU is welded with every two meters in the I-shaped steel tank of i iron main platform, the other end of i iron main platform is provided with draw-in groove, be placed with in draw-in groove and compile bundle device, the I-shaped steel tank internal labeling of compiling bundle device side has discharge quantity apart from graticule.
Described charging steel pipe and the distance of cutting machine pedestal are 50cm.
The described long 20cm of charging steel pipe, diameter are 10cm.
The distance of described draw-in groove distance comb row tooth is 2m.
The present invention has following beneficial effect: 1, clear thinking of the present invention, and it is simple, convenient to make, the functional requirement of be easy to realize blanking, compiling bundle and the lashing operation of follow-up duct.
2, the horse structure of the present invention's formation is safe and reliable, economical and practical, finally reclaims salvage value rate and is greater than 97%.
3, improve steel wire accuracy, decrease span number of times, made steel strand in order, ensure that volume beam quality.
4, effectively avoid that steel strand and steel wire bundle are subject to polluting (maintaining the clean of steel strand and steel wire bundle), steel wire bundle is difficult to duct lashing, steel strand curl and turn round the phenomenons such as fried dough twist, stretch-draw easily go wrong.
5, the hand haulage after compiling bundle is avoided.
6, significantly ensure that work quality, improve operating efficiency, save a large amount of artificial.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of I-I in Fig. 1;
Fig. 3 is the structural representation of II-II in Fig. 1;
Fig. 4 is the structural representation of III-III in Fig. 1;
Fig. 5 is the plan view compiling bundle device of the present invention;
Fig. 6 is the sectional view compiling bundle device of the present invention.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
With reference to Fig. 1-6, this detailed description of the invention is by the following technical solutions: bundle stand is compiled in a kind of prestress wire blanking, comprise i iron main platform 1, charging steel pipe 2, cutting machine pedestal 3, comb row tooth 4, compile bundle device 5, draw-in groove 6 and span graticule 7, charging steel pipe 2 is welded with in the I-shaped steel tank of i iron main platform 1 one end, the side of i iron main platform 1 one end is welded with cutting machine pedestal 3, cutting machine pedestal 3 is fixed with cutting machine, the capable tooth 4 of YIPAISHU is welded with every two meters in the I-shaped steel tank of i iron main platform 1, the other end of i iron main platform 1 is provided with draw-in groove 6, be placed with in draw-in groove 6 and compile bundle device 5, the I-shaped steel tank internal labeling of compiling bundle device 5 side has discharge quantity apart from graticule 7.
Described charging steel pipe 2 is 50cm with the distance of cutting machine pedestal 3.
The described long 20cm of charging steel pipe 2, diameter are 10cm.
Described draw-in groove 6 is 2m apart from the distance of comb row tooth 4.
This detailed description of the invention is at i iron main platform 1 other end, distance comb row tooth 2m place, and subtend setting welding two [5 channel-section steels, two channel-section steel opening sides are positioned opposite, form a draw-in groove, in groove, place removable volume bundle device (designing and producing according to volume bundle form of fracture).Compiling bundle device housing adopts Ф 16 one-level reinforcement welding to make, and size is as the criterion to facilitate insertion draw-in groove; Compiling lattice in bundle device adopts one-level Ф 6 reinforcement welding to make, mesh clear span (height) is slightly larger than one steel strand diameter (being convenient to steel strand longitudinally twitch), mesh position is as far as possible consistent with position, ground tackle hole, to ensure that the per share position of each section of steel strand is relatively fixing and corresponding consistent with position, ground tackle hole, two ends.
During the blanking of this detailed description of the invention, steel strand penetrate from workbench charging steel pipe, according to the tooth shelves of comb row tooth tooth shelves numbering through same numbering, until the span graticule place of the other end, according to calculating cutting length, throughput is long apart from the amount of graticule, cuts off steel strand at cutting machine.Then press same method, complete the blanking operation of a branch of steel strand successively.
Steel strand initiating terminal, in the tooth shelves of numbering separately, then being restrainted device by root through compiling, being restrainted 1m place outside device in volume by steel strand now, and with the bifilar galvanized wire colligation steel strand bunchy of 1m spacing, limit is twitched, and limit colligation, while the lashing operation carrying out prestressed pore passage end.
This stand is positioned over component position to be perforated annex (be generally and be advisable at a distance of 3-5m), is longitudinally in line arranges with component.Progressively completing the steel strand compiling bundle can penetrate in reserving hole channel immediately.
Embodiment: 2013 years, get the bid Lanzhou to the speedway Linxia, Lang Mu temple undertaken the construction of in cooperation section LH13 contract section work progress in Gansu Road And Bridge Construction Group Co., Ltd., 476 restressed beam slab concentration pre-castings completely, steel wire, compiling bundle all adopts prestress wire blanking volume bundle stand to construct, ensure that steel wire is accurate, steel strand and steel wire bundle clean, compile bundle qualification rate and reach 100%, and provide conveniently for duct lashing, in this project, material (prestress wire) has saved 3%, labour saving 40%, operating efficiency improves 35%.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. bundle stand is compiled in a prestress wire blanking, it is characterized in that, comprise i iron main platform (1), charging steel pipe (2), cutting machine pedestal (3), comb row tooth (4), compile bundle device (5), draw-in groove (6) and span graticule (7), charging steel pipe (2) is welded with in the I-shaped steel tank of i iron main platform (1) one end, the side of i iron main platform (1) one end is welded with cutting machine pedestal (3), (3) are fixed with cutting machine with cutting machine pedestal, the capable tooth of YIPAISHU (4) is welded with every two meters in the I-shaped steel tank of i iron main platform (1), the other end of i iron main platform (1) is provided with draw-in groove (6), be placed with in draw-in groove (6) and compile bundle device (5), the I-shaped steel tank internal labeling of compiling bundle device (5) side has discharge quantity apart from graticule (7).
2. bundle stand is compiled in a kind of prestress wire blanking according to claim 1, and it is characterized in that, described charging steel pipe (2) is 50cm with the distance of cutting machine pedestal (3).
3. bundle stand is compiled in a kind of prestress wire blanking according to claim 1, and it is characterized in that, described charging steel pipe (2) long 20cm, diameter are 10cm.
4. bundle stand is compiled in a kind of prestress wire blanking according to claim 1, it is characterized in that, the distance of described draw-in groove (6) distance comb row tooth (4) is 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635152.4A CN104675121B (en) | 2013-11-29 | 2013-11-29 | Bundle stand is compiled in a kind of prestress wire blanking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635152.4A CN104675121B (en) | 2013-11-29 | 2013-11-29 | Bundle stand is compiled in a kind of prestress wire blanking |
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| Publication Number | Publication Date |
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| CN104675121A true CN104675121A (en) | 2015-06-03 |
| CN104675121B CN104675121B (en) | 2016-09-07 |
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| CN201310635152.4A Active CN104675121B (en) | 2013-11-29 | 2013-11-29 | Bundle stand is compiled in a kind of prestress wire blanking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814335A (en) * | 2021-09-03 | 2021-12-21 | 中国建筑土木建设有限公司 | Steel strand braiding initial stress adjusting and damping system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10115097A (en) * | 1996-10-09 | 1998-05-06 | Shinko Kosen Kogyo Kk | Covered cable composed of pc-steel material and its anchoring method |
| CN102003072A (en) * | 2010-10-08 | 2011-04-06 | 天津滨海盈信投资有限公司 | Steel strand bundle-weaving and crossing construction method |
| CN102383377A (en) * | 2011-08-30 | 2012-03-21 | 中铁十局集团有限公司 | Construction method utilizing steel-strand strand pulling machine to perform fast strand pulling during construction of prestress structures |
| CN203201158U (en) * | 2013-05-09 | 2013-09-18 | 中交一公局第一工程有限公司 | Automatic steel strand pulling machine |
| CN203613812U (en) * | 2013-11-29 | 2014-05-28 | 甘肃路桥建设集团有限公司 | Pre-stressed steel strand blanking and binding rack |
-
2013
- 2013-11-29 CN CN201310635152.4A patent/CN104675121B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10115097A (en) * | 1996-10-09 | 1998-05-06 | Shinko Kosen Kogyo Kk | Covered cable composed of pc-steel material and its anchoring method |
| CN102003072A (en) * | 2010-10-08 | 2011-04-06 | 天津滨海盈信投资有限公司 | Steel strand bundle-weaving and crossing construction method |
| CN102383377A (en) * | 2011-08-30 | 2012-03-21 | 中铁十局集团有限公司 | Construction method utilizing steel-strand strand pulling machine to perform fast strand pulling during construction of prestress structures |
| CN203201158U (en) * | 2013-05-09 | 2013-09-18 | 中交一公局第一工程有限公司 | Automatic steel strand pulling machine |
| CN203613812U (en) * | 2013-11-29 | 2014-05-28 | 甘肃路桥建设集团有限公司 | Pre-stressed steel strand blanking and binding rack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814335A (en) * | 2021-09-03 | 2021-12-21 | 中国建筑土木建设有限公司 | Steel strand braiding initial stress adjusting and damping system |
| CN113814335B (en) * | 2021-09-03 | 2023-05-05 | 中国建筑土木建设有限公司 | Steel strand bundle initial stress adjusting damping system |
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| Publication number | Publication date |
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| CN104675121B (en) | 2016-09-07 |
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