CN203412299U - Open-close type steel stranded wire position limiting device - Google Patents
Open-close type steel stranded wire position limiting device Download PDFInfo
- Publication number
- CN203412299U CN203412299U CN201320306462.7U CN201320306462U CN203412299U CN 203412299 U CN203412299 U CN 203412299U CN 201320306462 U CN201320306462 U CN 201320306462U CN 203412299 U CN203412299 U CN 203412299U
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- CN
- China
- Prior art keywords
- cross beam
- metal derby
- metal block
- type steel
- steel strand
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 45
- 206010022114 Injury Diseases 0.000 abstract 1
- 230000002929 anti-fatigue Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
The utility model discloses an open-close type steel stranded wire position limiting device, which belongs to the field of architectural engineering and comprises a base, an upper cross beam, a lower cross beam, a shaft, a first metal block and a second metal block, wherein the upper end surface of the lower cross beam is provided with a downward rectangular groove, the lower end surface of the upper cross beam is provided with an upward corrugated groove, one end of the upper cross beam is connected with the lower cross beam through a shaft, the first metal block is positioned at one end, far away from the shaft, of the upper cross beam, the second metal block is positioned at one end, far away from the shaft, of the lower cross beam, the first metal block and the second metal block are respectively positioned at the same side of the upper cross beam and the lower cross beam, and the first metal block and the second metal block are respectively provided with matched holes. The open-close type steel stranded wire position limiting device has the advantages that the riveting structure is adopted, the flying of the broken steel stranded wire can be effectively limited for preventing people injury, in addition, the structure is simple, and the operation is convenient.
Description
Technical field
The utility model belongs to building engineering field, more particularly, relates to a kind of opening-closing type steel strand stopping means.
Background technology
Prestressed concrete is through the development of over half a century progressively ripe along with partial prestressing concept, 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, for the larger bridge of span, the prestressing steel using 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, needs to accept the pulling force from hundred tons of the one-tenth of jack, very easily stress is concentrated and the accident such as burst apart, fracture, to around construction workman produce great life danger.For example: China Patent No. is 201220019698.8, open day is on October 3rd, 2012, disclose the patent document that a name is called two dimension prestressing anti-fatigue girder, this utility model consists of girder steel, prestress wire, arc cushion block, Flat gasket, prestressed high-strength bolt, nut, crimping anchor head, bearing stiffener and bearing.Be with two steel strand that are arranged symmetrically with, to apply girder steel longitudinal prestressing at the web place of the nearly bottom flange of girder steel, and in beam length range, be symmetrical in web both sides, with suitable spacing, with high-strength bolt, girder steel is applied to transverse prestress.Under this two dimension prestressing effect, girder steel bottom flange does not enter tension stress state under Fatigue Load, under the shearing action that web produces in wheel load, 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.
China Patent No. is 201110145481.1, and open day is on December 28th, 2011, discloses the patent document that a name is called prestressing force anti-fatigue girder, and this utility model belongs to technical field of civil engineering, is specifically related to a kind of prestressing force anti-fatigue girder.By top flange, bottom flange, web, the bearing stiffener prestressing force anchor slab of holding concurrently, anchor hole, high-strength prestress steel strand, anchoring stiffening plate, anchor head, arc, bearing steel corbel and anti-sidesway cushion block form, in the anchor hole about web symmetry, to penetrate prestress wire near the tension edge of a wing, after stretch-draw, use anchor head anchoring, thereby the tensile region of girder steel is produced to precompression, make it consider after Relaxation of prestressing that compressive stress is greater than the lower tensile stress of deadweight and add tired tensile stress amplitude, the bottom flange of beam can not enter tension under deadweight and fatigue loading compound action yet, thereby solved fatigue problem.This utility model makes design Fatigue Stress Amplitude in bottom flange be confined to allow Fatigue Stress Amplitude to bring up to approach design strength f from former, anti-fatigue ability significantly improves, the brittle fracture of the labor that weakens is the strength problem of ductility, the ultimate strength of bottom flange almost doubles, and has significantly improved the stock utilization of high strength steel.
Above-mentioned girder steel is applied very extensive in the manufacture process of the larger bridge of span, and it is in work progress, and steel strand are in the external tension of girder steel, and need workman to operate to adjust the connecting portion of steel strand.If the lateral stress excessive tensile strength that surpasses steel strand of moment applying, the accident that easily breaks, does not arrange safeguard measure, great threat workman's life security.
Summary of the invention
the problem that 1, will solve
For the above-mentioned problems in the prior art, the utility model provides a kind of opening-closing type steel strand stopping means, one end of its lower and upper cross-member adopts riveting method to link together, two crossbeams can rotate relatively freely, simple in structure, easy to operate, can effectively limit the steel strand that break and fly up and hurt sb.'s feelings.
2, technical scheme
In order to address the above problem, the technical scheme that the utility model adopts is as follows.
A steel strand stopping means, comprises base, also comprises top rail, lower transverse beam, axle, the first metal derby, the second metal derby, and the upper surface of described lower transverse beam has downward rectangular recess; Described top rail lower surface is provided with corrugation grooves upwards; One end of described top rail is connected with lower transverse beam by axle; Described the first metal derby is positioned at abaxial one end on top rail; Described the second metal derby is positioned at abaxial one end on lower transverse beam; Described the first metal derby, the second metal derby are all positioned at the side that top rail is identical with lower transverse beam; Described the first metal derby, the second metal derby are all provided with the hole of matching.
Further, described the first metal derby, the second metal derby are rectangle.
Further, described corrugation grooves is connected to form successively by a plurality of semi-circular recesses.
Further, half diameter of a circle of described corrugation grooves is 3.6cm.
3, beneficial effect
The technical scheme that adopts the utility model to provide, compares with existing technology, has following beneficial effect:
(1) the utility model opening-closing type steel strand stopping means, comprise top rail, lower transverse beam, axle, the first metal derby, the second metal derby, described top rail one end is connected with lower transverse beam one end by axle, described lower transverse beam is positioned on base, one end of its lower and upper cross-member adopts riveting method to link together, two crossbeams can rotate relatively freely, easy to operate, can effectively limit the steel strand that break and fly up and hurt sb.'s feelings;
(2) half diameter of a circle of the corrugation grooves of the utility model opening-closing type steel strand stopping means is 3.6cm, can better carry out spacing to steel strand;
(3) metal derby on the lower and upper cross-member of the utility model opening-closing type steel strand stopping means is provided with the hole of matching, in use can be overlapping, and with screw fastening, guarantee the limit effect of top rail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, top rail; 2, lower transverse beam; 3, base; 4, corrugation grooves; 5, the first metal derby; 6, axle; 7, the second metal derby.
The specific embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing, utility model is further described.
As shown in Figure 1, a kind of opening-closing type steel strand stopping means, comprises base 3, also comprises top rail 1, lower transverse beam 2, axle 6, the first metal derby 5, the second metal derby 7, and the upper surface of lower transverse beam 2 has downward rectangular recess; Top rail 1 lower surface is provided with corrugation grooves 4 upwards; One end of top rail 1 is connected with lower transverse beam 2 by axle 6; The first metal derby 5 is positioned on top rail 1 one end away from axle 6; The second metal derby 7 is positioned on lower transverse beam 2 one end away from axle 6; The first metal derby 5, the second metal derby 7 are all positioned at the side that top rail 1 is identical with lower transverse beam 2; The first metal derby 5, the second metal derby 7 are all provided with the hole of matching.
The first metal derby 5, the second metal derby 7 are rectangle; Corrugation grooves 4 is connected to form successively by a plurality of semi-circular recesses; Half diameter of a circle of corrugation grooves 4 is 3.6cm.
Steel strand are being carried out before stretch-draw, junction at steel strand and finish rolling screw thread, first upwards pull open top rail 1, lower transverse beam 2 is laterally vertically placed on to the bottom of steel wire bundle, make steel strand all in the groove in lower transverse beam 2, top rail 1 again closes, make in each semi-circular recesses in corrugation grooves 4 through steel strand, with screw, connect the first metal derby 5, the second metal derby 7 on top rail and lower transverse beam again, fix top rail 1, can prevent from like this when steel strand from breaking rebounding, the danger that causes to workman of avoiding.
Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various modifications to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (4)
1. an opening-closing type steel strand stopping means, comprise base (3), it is characterized in that: also comprise top rail (1), lower transverse beam (2), axle (6), the first metal derby (5), the second metal derby (7), the upper surface of described lower transverse beam (2) has downward rectangular recess; Described top rail (1) lower surface is provided with corrugation grooves (4) upwards; One end of described top rail (1) is connected with lower transverse beam (2) by axle (6); Described the first metal derby (5) is positioned at the upper one end away from axle (6) of top rail (1); Described the second metal derby (7) is positioned at the upper one end away from axle (6) of lower transverse beam (2); Described the first metal derby (5), the second metal derby (7) are all positioned at the side that top rail (1) is identical with lower transverse beam (2); Described the first metal derby (5), the second metal derby (7) are all provided with the hole of matching.
2. opening-closing type steel strand stopping means according to claim 1, is characterized in that: opening-closing type steel strand stopping means according to claim 1, is characterized in that: described the first metal derby (5), the second metal derby (7) are rectangle.
3. opening-closing type steel strand stopping means according to claim 1, is characterized in that: described corrugation grooves (4) is connected to form successively by a plurality of semi-circular recesses.
4. opening-closing type steel strand stopping means according to claim 1, is characterized in that: half diameter of a circle of described corrugation grooves (4) is 3.6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306462.7U CN203412299U (en) | 2013-05-31 | 2013-05-31 | Open-close type steel stranded wire position limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306462.7U CN203412299U (en) | 2013-05-31 | 2013-05-31 | Open-close type steel stranded wire position limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412299U true CN203412299U (en) | 2014-01-29 |
Family
ID=49975195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320306462.7U Expired - Fee Related CN203412299U (en) | 2013-05-31 | 2013-05-31 | Open-close type steel stranded wire position limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276905A (en) * | 2013-05-31 | 2013-09-04 | 中交二航局第四工程有限公司安徽分公司 | Open-close type steel strand limiting device |
-
2013
- 2013-05-31 CN CN201320306462.7U patent/CN203412299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276905A (en) * | 2013-05-31 | 2013-09-04 | 中交二航局第四工程有限公司安徽分公司 | Open-close type steel strand limiting device |
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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: 20140129 Termination date: 20140531 |