CN203373997U - Guide rail type steel strand limiting tool - Google Patents
Guide rail type steel strand limiting tool Download PDFInfo
- Publication number
- CN203373997U CN203373997U CN201320314617.1U CN201320314617U CN203373997U CN 203373997 U CN203373997 U CN 203373997U CN 201320314617 U CN201320314617 U CN 201320314617U CN 203373997 U CN203373997 U CN 203373997U
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- steel strand
- vertical plate
- limiting tool
- guide rail
- guide groove
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Abstract
The utility model discloses a guide rail type steel strand limiting tool, and belongs to the field of constructional engineering. The tool comprises a base and further comprises a support and threading devices, wherein the support is in the shape of L rotating clockwise by 90 degrees and comprises a vertical beam and a beam, the vertical beam is perpendicularly fixed to the base, a guide groove is formed in the beam in the length direction, and the cross section of the guide groove is in the shape of T. Each threading device comprises a horizontal guiding ribbed plate and a vertical plate, the horizontal guiding ribbed plate and the vertical plate form a T shape, a through hole is formed in the vertical plate, and the T shape formed by the horizontal guiding ribbed plate and the vertical plate is matched with the T shape of the cross section of the guide groove in shape. According to the guide rail type steel strand limiting tool, the independent threading devices and a guide rail are matched to limit steel strands, the independent threading devices can move freely along the guide rail, the number of the threading devices can be changed, broken steel stands can be prevented from injuring people, and the guide rail type steel strand limiting tool is simple in structure, convenient to construct and easy to promote.
Description
Technical field
The invention belongs to building engineering field, more particularly, relate to a kind of guide tracked steel strand limiting tool.
Background technology
Prestressed concrete is through the development of over half a century progressively ripe along with prestressing technique, and having broken through concrete can not tension and the constraint of cracking, has greatly expanded its range of application.At present, prestressed concrete has become the topmost a kind of structural meterials of domestic and abroad bridge engineering, the larger bridge for span, the prestressing steel used mostly is steel strand, but the disadvantages such as weight is large, easy-to-rust that these class steel still have, the stretching process that adds steel strand is to carry out the external of stretch-draw crossbeam, need to accept the pulling force from the large ton amount of the hydraulic tests such as jack, very easily stress such as concentrates at the former thereby accident such as burst apart, fracture, and the steel wire of bounce-back can produce great life danger to construction workman on every side.The steel wire of some bounce-back rebound the people on the face or with it, the lighter can cause skin trauma, severe one may threat to life.How can better stretching steel strand but existing equipment was only considered in when design, seldom consider the problem of bounce-back after the steel strand fracture.For example: China Patent No. is 201220019698.8, open day is on October 3rd, 2012, disclose the patent document that a name is called the two dimension prestressing anti-fatigue girder, this invention consists of girder steel, prestress wire, arc cushion block, Flat gasket, prestressed high-strength bolt, nut, crimping anchor head, bearing stiffener and bearing.Be to apply the girder steel longitudinal prestressing at the web place of the nearly bottom flange of girder steel with two steel strand that are arranged symmetrically with, and, in the beam length range, be symmetrical in the web both sides, with suitable spacing, with high-strength bolt, girder steel is applied to transverse prestress.Under this two dimension prestressing effect, the girder steel bottom flange does not enter the tension stress state under Fatigue Load, under the shearing action that web produces in wheel load, the sloping section main stress bar does not enter tension state yet, thereby guarantees that the girder steel edge of a wing and web all can not produce fatigue failure.Thereby make the girder steel of being controlled by fatigue capacity can effectively utilize high-strength steel, economize on resources, improve safety, stop fatigue failure.
And for example, China Patent No. is 02235214.7, open day is on December 25th, 2002, the patent document that a name is called prestressed large-span solid abdomen steel beam structure system is disclosed, this disclosure of the invention a kind of prestressed large-span solid abdomen steel beam structure system, the single span girder steel or the multispan continuous steel beam that comprise I-shaped or box section, and in the both sides of its steel beam web plate, be provided with two groups of symmetrical presstressed reinforcing steels along its length, these presstressed reinforcing steel both ends are anchored on the ground tackle be fixed on girder steel.Every group of presstressed reinforcing steel be a branch of more than, elongated or only at girder steel, bear the position that tensile stress is larger and arrange along girder steel, it can be parallel with steel beam web plate or be an angle with steel beam web plate.Presstressed reinforcing steel is bent and pass the preformed hole on frange plate, on the girder steel frange plate that it is corresponding with the presstressed reinforcing steel bending place and web, increases and is welded with the gusset of putting more energy into.The steel structure girder installation in position and fixing after, girder steel applied to prestressing force form prestressed large-span solid abdomen steel beam structure system by two groups of presstressed reinforcing steels being carried out to stretch-draw, can be used for steel building that beam span is larger or bridge etc.
Above-mentioned girder steel is applied very extensive in the manufacture process of the larger bridge of span; it is in work progress; do not prevent the protective device flown up because fractureing of steel strand, steel strand are in the external tension of girder steel, and need the workman to operate to adjust the connecting portion of steel strand.If or do not solve the steel strand accident that breaks, workman's life is produced to the problem of threat.
Summary of the invention
the problem that 1, will solve
For the above-mentioned problems in the prior art, the invention provides a kind of guide tracked steel strand limiting tool, it adopts independent threader to coordinate and carry out spacing to steel strand with guide rail, can be along freely activity of guide rail, increase and decrease quantity, play the steel strand effect of hurting sb.'s feelings that prevents fracture, and simple in structure, easy construction, be easy to promote.
2, technical scheme
In order to address the above problem, the technical solution adopted in the present invention is as follows.
A kind of guide tracked steel strand limiting tool, comprise base, also comprises support, threader, and described support is 90 ° " L " font of turning clockwise, and comprises vertical beam and crossbeam; Described vertical beam vertically is fixed on base; Be provided with along its length guide groove in described crossbeam; The cross section of described guide groove is " T " font; Described threader comprises level guiding floor and vertical plate; Described vertical plate vertically is fixed in the middle part of level guiding floor bottom surface, and level guiding floor and vertical plate form " T " font; Have through hole on described vertical plate; " T " font shape that described level guiding floor and vertical plate form matches with " T " font of the cross section of guide groove.
Preferably, scribble lubrication oil in described guide groove.
Preferably, the through hole on described vertical plate is circular hole or square hole.
Preferably, the weight of described threader is 0.5-1kg.
More preferably, described support is made by stainless steel.
More preferably, the quantity of described threader has 13-35.
3, beneficial effect
Adopt technical scheme provided by the invention, compare with existing technology, there is following beneficial effect:
(1) the guide tracked steel strand limiting tool of the present invention, comprise base, support, threader, support is provided with guide groove, and threader and guide groove matched in clearance can be free to slide in groove, also be provided with steel strand on it through hole, can select the threader of respective numbers according to the quantity of the steel strand of required stretch-draw, play the effect that the steel strand that prevent fracture are hurted sb.'s feelings, and simple in structure, easy construction, be easy to promote;
(2) scribble lubrication oil in guide groove of the present invention, make the installation of threader between guide rail more smooth;
(3) support of the present invention is made by stainless steel, can effectively to the prestress wire ruptured, play the effect of blocking.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The cross sectional representation that Fig. 2 is guide rail of the present invention;
The structural representation that Fig. 3 is threader of the present invention.
In figure: 1, base; 2, support; 3, threader; 4, level guiding floor; 5, vertical plate.
The specific embodiment
Below in conjunction with concrete accompanying drawing, describe the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of guide tracked steel strand limiting tool, comprise base 1, also comprise support 2, threader 3, support 2 is 90 ° " L " font of turning clockwise, and comprises vertical beam and crossbeam, and vertical beam vertically is fixed on base 1, be provided with along its length guide groove in crossbeam, the cross section of guide groove is " T " font; Threader 3 comprises level guiding floor 4 and vertical plate 5, and vertical plate 5 vertically is fixed in the middle part of level guiding floor 4 bottom surfaces, and level guiding floor 4 and vertical plate 5 form " T " font; Have through hole on vertical plate 5; " T " font shape that level guiding floor 4 and vertical plate 5 form matches with " T " font of the cross section of guide groove.
Scribble lubrication oil in guide groove; Through hole on vertical plate 5 is square hole; The weight of threader 3 is 0.5-1kg; Support 2 is made by stainless steel; The quantity of threader 3 has 22.
During use, junction at steel strand and finish rolling screw thread, this frock is laterally vertical through steel wire bundle, make steel strand all below support 2, select corresponding threader 3 according to steel strand quantity again, and be installed on successively in support 2 crossbeam upper rails, then steel strand are put into to the square hole on threader 3.
embodiment 1
A kind of guide tracked steel strand limiting tool, comprise base 1, also comprises support 2, threader 3, and support 2 is 90 ° " L " font of turning clockwise, and comprises vertical beam and crossbeam; Vertical beam vertically is fixed on base 1; Be provided with along its length guide groove in crossbeam; The cross section of guide groove is " T " font; Threader 3 comprises level guiding floor 4 and vertical plate 5; Vertical plate 5 vertically is fixed in the middle part of level guiding floor 4 bottom surfaces, and level guiding floor 4 and vertical plate 5 form " T " font; Have through hole on vertical plate 5; " T " font shape that level guiding floor 4 and vertical plate 5 form matches with " T " font of the cross section of guide groove.Scribble lubrication oil in guide groove.Through hole on vertical plate 5 is circular hole or square hole.The weight of threader 3 is 0.8kg.Support 2 is made by stainless steel.The quantity of threader 3 has 22.
With embodiment 1, difference is that the weight of threader 3 is 0.5kg; The quantity of threader 3 has 35.
embodiment 3
With embodiment 1, difference is that the weight of threader 3 is 1kg; The quantity of threader 3 has 13.
Below schematically the present invention and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that do not break away from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (6)
1. a guide tracked steel strand limiting tool, comprise base (1), it is characterized in that: also comprise support (2), threader (3), described support (2) is 90 ° " L " font of turning clockwise, and comprises vertical beam and crossbeam; Described vertical beam vertically is fixed on base (1); Be provided with along its length guide groove in described crossbeam; The cross section of described guide groove is " T " font; Described threader (3) comprises level guiding floor (4) and vertical plate (5); Described vertical plate (5) vertically is fixed in the middle part of level guiding floor (4) bottom surface, and level guiding floor (4) and vertical plate (5) form " T " font; Described vertical plate has through hole on (5); " T " font shape that described level guiding floor (4) and vertical plate (5) form matches with " T " font of the cross section of guide groove.
2. a kind of guide tracked steel strand limiting tool according to claim 1, is characterized in that: in described guide groove, scribble lubrication oil.
3. a kind of guide tracked steel strand limiting tool according to claim 1, it is characterized in that: the through hole on described vertical plate (5) is circular hole or square hole.
4. a kind of guide tracked steel strand limiting tool according to claim 1, it is characterized in that: the weight of described threader (3) is 0.5-1kg.
5. according to the described a kind of guide tracked steel strand limiting tool of any one in claim 1-4, it is characterized in that: described support (2) is made by stainless steel.
6. a kind of guide tracked steel strand limiting tool according to claim 5 is characterized in that: the quantity of described threader (3) has 13-35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320314617.1U CN203373997U (en) | 2013-06-04 | 2013-06-04 | Guide rail type steel strand limiting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320314617.1U CN203373997U (en) | 2013-06-04 | 2013-06-04 | Guide rail type steel strand limiting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203373997U true CN203373997U (en) | 2014-01-01 |
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ID=49836540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320314617.1U Expired - Fee Related CN203373997U (en) | 2013-06-04 | 2013-06-04 | Guide rail type steel strand limiting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203373997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266775A (en) * | 2013-06-04 | 2013-08-28 | 中交二航局第四工程有限公司安徽分公司 | Guide rail type steel strand limit tool |
| CN110485749A (en) * | 2019-09-04 | 2019-11-22 | 陕西省建筑科学研究院有限公司 | A kind of device for positioning and resetting for H profile steel component external prestressing steel strand wires |
-
2013
- 2013-06-04 CN CN201320314617.1U patent/CN203373997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266775A (en) * | 2013-06-04 | 2013-08-28 | 中交二航局第四工程有限公司安徽分公司 | Guide rail type steel strand limit tool |
| CN110485749A (en) * | 2019-09-04 | 2019-11-22 | 陕西省建筑科学研究院有限公司 | A kind of device for positioning and resetting for H profile steel component external prestressing steel strand wires |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20140604 |