CN203347245U - Inner pinned limiting device for steel strand - Google Patents
Inner pinned limiting device for steel strand Download PDFInfo
- Publication number
- CN203347245U CN203347245U CN 201320306461 CN201320306461U CN203347245U CN 203347245 U CN203347245 U CN 203347245U CN 201320306461 CN201320306461 CN 201320306461 CN 201320306461 U CN201320306461 U CN 201320306461U CN 203347245 U CN203347245 U CN 203347245U
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- Prior art keywords
- cross beam
- steel strand
- vertical plate
- top rail
- lower transverse
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 230000000295 complement effect Effects 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 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
- 238000011161 development Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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Abstract
The utility model discloses an inner pinned limiting device for a steel strand and belongs to the field of building engineering. The inner pined limiting device for the steel strand comprises a left cross beam and a right cross beam. The left cross beam comprises a first upper cross beam, a first lower cross beam, a first vertical plate and a first supporting plate, wherein the first upper cross beam and one end of the first lower cross beam are both fastened on the first vertical plate; the first supporting plate is fastened on one side of the first vertical plate; and the end parts of the first upper cross beam and the first lower cross beam are respectively provided with a first pin hole and a second pin hole. The right cross beam comprises a second upper cross beam, a second lower cross beam, a second supporting plate and a second vertical plate, wherein the second upper cross beam and one end of the second lower cross beam are both fastened on the second vertical plate. In the inner pinned limiting device for steel strand, the left and the right cross beams are abutted against each other and form a complete whole with simple the operation, so that people can be effectively prevented from hurting by a broken steel strand; and with simple operation and small space occupation, the inner pinned limiting device for the steel strand is quite suitable for promotion.
Description
Technical field
The utility model belongs to building engineering field, more particularly, relates to a kind of domestic formula steel strand stopping means.
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, but existing equipment has only considered that in when design each can better stretching steel strand, seldom consider the problem of bounce-back after the steel strand fracture.For example: China Patent No. is 201110145481.1, open day is on December 28th, 2011, disclose the patent document that a name is called the prestressing force anti-fatigue girder, 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, the high-strength prestress steel strand, anchoring stiffening plate, anchor head, arc, bearing steel corbel and anti-sidesway cushion block form, to penetrate prestress wire near the anchor hole of the tension edge of a wing about the web symmetry, use the anchor head anchoring after stretch-draw, thereby the tensile region to girder steel produces 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 strength problem that the brittle fracture of the labor that weakens is ductility, the ultimate strength of bottom flange almost doubles, and has significantly improved the stock utilization of high strength steel.
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 utility model discloses 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; but it is in work progress; there is no to 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 the lateral stress excessive tensile strength that surpasses steel strand of moment applied, the accident that easily breaks, to workman's life generation threat.
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 domestic formula steel strand stopping means, and its left and right crossbeam is complete integral body by the docking of latch and screw, easy to operate, can effectively prevent from that post-rift steel strand from flying up to 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 kind of domestic formula steel strand stopping means, comprise left crossbeam, right crossbeam; Described left crossbeam comprises the first top rail, the first lower transverse beam, the first vertical plate and the first gripper shoe; Described the first top rail, the first lower transverse beam be arranged in parallel up and down; One end of described the first top rail, the first lower transverse beam all is fixed on the first vertical plate; Described the first gripper shoe is fixed in a side of the first vertical plate; The end of described the first top rail, the first lower transverse beam is respectively equipped with the first pin-and-hole, the second pin-and-hole; Described right crossbeam comprises the second top rail, the second lower transverse beam, the second gripper shoe and the second vertical plate; Described the second top rail, the second lower transverse beam be arranged in parallel up and down; One end of described the second top rail, the second lower transverse beam all is fixed on the second vertical plate; Described the second gripper shoe is fixed in a side of the second vertical plate; The end of described the second top rail, the second lower transverse beam is respectively equipped with the first latch and the second latch that the shape with the first pin-and-hole and the second pin-and-hole is complementary.
Further, be equipped with corresponding pin shaft hole on described the first latch and the first pin-and-hole; Be equipped with corresponding pin shaft hole on the second latch and the second pin-and-hole.
Further, the length of described the first latch, the second latch is 5cm.
Further, the spacing of described the first top rail, the first lower transverse beam is identical with the spacing of the second top rail, the second lower transverse beam.
Further, described the second gripper shoe, the first gripper shoe are rectangle.
Further, described the second gripper shoe is vertical with the second vertical plate with the first vertical plate respectively with the first gripper shoe.
3, beneficial effect
The technical scheme that adopts the utility model to provide, compare with existing technology, has following beneficial effect:
(1) the domestic formula steel strand of the utility model stopping means, comprise left crossbeam, right crossbeam, and left crossbeam, right crossbeam are an integral body by screw and latch docking, can effectively limit the steel strand that break and fly up and hurt sb.'s feelings, easy and simple to handle, takes up an area space little, is easy to promote;
(2) be equipped with corresponding pin shaft hole on the first latch of the domestic formula steel strand of the utility model stopping means and the first pin-and-hole, make the connection of left and right crossbeam more reliable;
(3) spacing of the first top rail of the domestic formula steel strand of the utility model stopping means, the first lower transverse beam is identical with the spacing of the second top rail, the second lower transverse beam, can guarantee the complete docking of left and right crossbeam.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, left crossbeam; 2, right crossbeam; 3, the second gripper shoe; 4, the first gripper shoe; 5, the first latch; 6, the second latch; 7, the second pin-and-hole; 8, the first pin-and-hole; 9, the first top rail; 10, the first lower transverse beam; 11, the second top rail; 12, the second lower transverse beam.
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 domestic formula steel strand stopping means, comprise left crossbeam 1, right crossbeam 2, left crossbeam 1 comprises the first top rail 9, the first lower transverse beam 10, the first vertical plate and the first gripper shoe 4, the first top rail 9, the first lower transverse beam 10 be arranged in parallel up and down, and an end of the first top rail 9, the first lower transverse beam 10 all is fixed on the first vertical plate; The first gripper shoe 4 is fixed in a side of the first vertical plate; The end of the first top rail 9, the first lower transverse beam 10 is respectively equipped with the first pin-and-hole 8, the second pin-and-hole 7; Right crossbeam 2 comprises the second top rail 11, the second lower transverse beam 12, the second gripper shoe 3 and the second vertical plate, and the second top rail 11, the second lower transverse beam 12 be arranged in parallel up and down, and an end of the second top rail 11, the second lower transverse beam 12 all is fixed on the second vertical plate; The second gripper shoe 3 is fixed in a side of the second vertical plate; The end of the second top rail 11, the second lower transverse beam 12 is respectively equipped with the first latch 5 and the second latch 6 that the shape with the first pin-and-hole 8 and the second pin-and-hole 7 is complementary.
Be equipped with corresponding pin shaft hole on the first latch 5 and the first pin-and-hole 8; Be equipped with corresponding pin shaft hole on the second latch 6 and the second pin-and-hole 7; The length of the first latch 5, the second latch 6 is 5cm; The spacing of the first top rail 9, the first lower transverse beam 10 is identical with the spacing of the second top rail 11, the second lower transverse beam 12; The second gripper shoe 3, the first gripper shoe 4 are rectangle; The second gripper shoe 3 is vertical with the second vertical plate with the first vertical plate respectively with the first gripper shoe 4.
Before steel strand are carried out to stretch-draw, junction at steel strand and finish rolling screw thread, left crossbeam 1 from the horizontal vertical sleeve of a side on steel wire bundle, make steel strand between lower and upper cross-member, again by right crossbeam 2 from the opposite side vertical sleeve on steel strand, the first latch 5 is inserted in the first pin-and-hole 8, the second latch 6 inserts in the second pin-and-hole 7, again with screw by the first latch 5 and the first pin-and-hole 8, the second latch 6 and the second pin-and-hole 7 are fixed, now left crossbeam 1 is connected into a rectangular frame with 2 pairs, right crossbeam, the steel strand of required stretch-draw are all vertically through the rectangular frame between lower and upper cross-member.
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 (6)
1. a domestic formula steel strand stopping means, it is characterized in that: comprise left crossbeam (1), right crossbeam (2), described left crossbeam (1) comprises the first top rail (9), the first lower transverse beam (10), the first vertical plate and the first gripper shoe (4); Described the first top rail (9), the first lower transverse beam (10) be arranged in parallel up and down; One end of described the first top rail (9), the first lower transverse beam (10) all is fixed on the first vertical plate; Described the first gripper shoe (4) is fixed in a side of the first vertical plate; The end of described the first top rail (9), the first lower transverse beam (10) is respectively equipped with the first pin-and-hole (8), the second pin-and-hole (7); Described right crossbeam (2) comprises the second top rail (11), the second lower transverse beam (12), the second gripper shoe (3) and the second vertical plate; Described the second top rail (11), the second lower transverse beam (12) be arranged in parallel up and down; One end of described the second top rail (11), the second lower transverse beam (12) all is fixed on the second vertical plate; Described the second gripper shoe (3) is fixed in a side of the second vertical plate; The end of described the second top rail (11), the second lower transverse beam (12) is respectively equipped with the first latch (5) and the second latch (6) that the shape with the first pin-and-hole (8) and the second pin-and-hole (7) is complementary.
2. domestic formula steel strand stopping means according to claim 1, is characterized in that: on described the first latch (5) and the first pin-and-hole (8), be equipped with corresponding pin shaft hole; Be equipped with corresponding pin shaft hole on the second latch (6) and the second pin-and-hole (7).
3. domestic formula steel strand stopping means according to claim 2, it is characterized in that: the length of described the first latch (5), the second latch (6) is 5cm.
4. domestic formula steel strand stopping means according to claim 1, it is characterized in that: the spacing of described the first top rail (9), the first lower transverse beam (10) is identical with the spacing of the second top rail (11), the second lower transverse beam (12).
5. domestic formula steel strand stopping means according to claim 1, it is characterized in that: described the second gripper shoe (3), the first gripper shoe (4) are rectangle.
6. domestic formula steel strand stopping means according to claim 5, it is characterized in that: described the second gripper shoe (3) is vertical with the second vertical plate with the first vertical plate respectively with the first gripper shoe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306461 CN203347245U (en) | 2013-05-31 | 2013-05-31 | Inner pinned limiting device for steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320306461 CN203347245U (en) | 2013-05-31 | 2013-05-31 | Inner pinned limiting device for steel strand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347245U true CN203347245U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320306461 Expired - Fee Related CN203347245U (en) | 2013-05-31 | 2013-05-31 | Inner pinned limiting device for steel strand |
Country Status (1)
| Country | Link |
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| CN (1) | CN203347245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276669A (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 | Domestic-sale-type steel strand limiting device |
-
2013
- 2013-05-31 CN CN 201320306461 patent/CN203347245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276669A (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 | Domestic-sale-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: 20131218 Termination date: 20140531 |