CN202064523U - Self-steering prestressed sheet clamping and stretching anchorage device - Google Patents
Self-steering prestressed sheet clamping and stretching anchorage device Download PDFInfo
- Publication number
- CN202064523U CN202064523U CN2011201409794U CN201120140979U CN202064523U CN 202064523 U CN202064523 U CN 202064523U CN 2011201409794 U CN2011201409794 U CN 2011201409794U CN 201120140979 U CN201120140979 U CN 201120140979U CN 202064523 U CN202064523 U CN 202064523U
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- clamping plate
- tension
- rotating shaft
- retaining ring
- tension rod
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Abstract
The utility model discloses a self-steering prestressed sheet clamping and stretching anchorage device, which comprises a clamping plate combination (1) and a stretching rod (2), wherein the clamping plate combination (1) is hinged with the stretching rod (2) through an anti-release rotating shaft (3), and the anti-release rotating shaft (3) is positioned on a vertical central axis of the clamping plate combination (1) and the stretching rod (2); the clamping plate combination (1) consists of an upper clamping plate (1a), a lower clamping plate (1b) and bolt and nut combinations (1c), and the bolt and nut combinations (1c) are symmetrically arranged at the left and right sides of the upper clamping plate (1a) and the lower clamping plate (1b) and ensure the upper clamping plate (1a) and the lower clamping plate (1b) to be fastened together. The self-steering prestressed sheet clamping and stretching anchorage device has a simple structure, has the function of self-steering in the sheet prestress stretching process, and can ensure that the sheet is always stretched axially and the transverse shearing stress is not generated inside the sheet.
Description
Technical field
The utility model belongs to the prestressing technique field of engineering structures, is specifically related to a kind of band from the prestressing force sheet material clamping tension ground tackle that turns to function, guarantees that the prestressing force sheet material only is axial tension in stretching process, and sheet material inside horizontal shear stress can not occur.
Background technology
Prestressing technique, be widely used in the Structural Engineerings such as industry and civilian construction, bridge engineering, adopted the concrete structure of prestressing technique all can to improve greatly at aspects such as cracking resistance, rigidity and durability, particularly through the high strength fibre composite sheet of prestressed stretch-draw, can be widely used in strengthening or reinforcing civil engineering structure (as concrete structure, steel work, wooden construction etc.), thereby improve the supporting capacity of engineering structures, and prolong its application life, have very important society, economic benefit.
Because the loading characteristic (poor) of flaky material itself as shear behavior, need be during pre-stress construction by adjusting the stretch-draw direction of ground tackle, guarantee between ground tackle and sheet material horizontal relative reversing (abbreviating " centering " as) not taken place, and then guarantee that sheet material only is an axial tension, horizontal shear stress does not appear in sheet material inside.Existing method is generally taked artificial centering, i.e. need accurately to demarcate earlier the ground tackle position at sheet material two ends before the stretch-draw, and ground tackle carefully is installed.The method efficient of artificial centering is low, low precision, constructor and location instrument are had relatively high expectations, and construction is wasted time and energy, the centering effect is difficult to guarantee.
The utility model content
The purpose of this utility model is to provide a kind of sheet material ground tackle simple in structure, can guarantee sheet material axial tension all the time in the prestressed stretch-draw process, and horizontal shear stress does not appear in inside.
For reaching above-mentioned purpose, what the utility model provided is a kind of from turning to prestressing force sheet material clamping tension ground tackle, comprise clamping plate combination (1) and tension rod (2), key is: described clamping plate combinations (1) are hinged by anticreep rotating shaft (3) with described tension rod (2), and described anticreep rotating shaft (3) is positioned on the longitudinal central axis line of described clamping plate combinations (1) and tension rod (2); Described clamping plate combinations (1) are made up of train wheel bridge (1a), lower plate (1b) and unit bolt nut (1c), and described unit bolt nut (1c) is symmetricly set on the left and right sides of described upper and lower clamping plate (1a, 1b) and upper and lower clamping plate (1a, 1b) are tightened together.
This utility model is work like this: sheet material is clamped between the upper and lower clamping plate of clamping plate combination, and fastening by unit bolt nut, and prestressing force is applied on the tension rod, passes to sheet material by tension rod, clamping plate combination successively.Tension rod and clamping plate combination are hinged by the anticreep rotating shaft, can relatively rotate between the two, simultaneously, the pin joint of tension rod and clamping plate combination is positioned on separately the longitudinal central axis line, has guaranteed in the prestressed stretch-draw process sheet material axial tension and lateral shear can not take place all the time.
As preferably, described train wheel bridge (1a) fits together by curved surface with lower plate (1b), described anticreep rotating shaft (3) is made up of pin (3a) and screwed retaining ring (3b), and described pin (3a) passes train wheel bridge (1a), tension rod (2) and lower plate (1b) back successively and is threaded with described screwed retaining ring (3b).
The utility model can be widely used in having built or at the pre-stress construction of various engineering structuress such as bridge of building or building construction, be specially adapted to concrete beam, plate etc. is carried out the external prestressing construction, and its beneficial effect is:
1) hinged between clamping plate combination and the tension rod by the anticreep rotating shaft, possess auto-steering function;
2) Path of Force Transfer is directly perceived, clear, guarantees sheet material axial tension all the time, and horizontal shear stress does not appear in inside, and prestressing force applies effective and simple in structure;
3) centering work has been simplified in automatic centering in stretching process, has improved accuracy of alignment, makes the cost of construction lower, efficient is higher;
4) further, adopt curved surface to agree with the method for clamping that combines with unit bolt nut, anchoring effect is better;
5) adopt simple, light clamping plate combination, reduced the material consumption and the technology difficulty of ground tackle product, production, maintenance cost reduce greatly.
Description of drawings
Fig. 1 is one of form of structure of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is two of a form of structure of the present utility model.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is three of a form of structure of the present utility model.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is four of a form of structure of the present utility model.
Fig. 8 is the vertical view of Fig. 7.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
As shown in Figure 1 and Figure 2 turn to prestressing force sheet material clamping tension ground tackle certainly, form by clamping plate combination 1, tension rod 2 and anticreep rotating shaft 3, the right-hand member of clamping plate combination 1 and the left end of tension rod 2 are hinged by anticreep rotating shaft 3, can relatively rotate around anticreep rotating shaft 3 between clamping plate combination 1 and the tension rod 2.Clamping plate combination 1 is made up of train wheel bridge 1a, lower plate 1b and unit bolt nut 1c, upper and lower clamping plate 1a, 1b each side are symmetrically arranged with 5 groups of unit bolt nut 1c, unit bolt nut 1c tightens together upper and lower clamping plate 1a, 1b for securing member commonly used.Anticreep rotating shaft 3 is made up of pin 3a and screwed retaining ring 3b, and it is thick that the end of pin 3a has pier, and the other end has been attacked screw thread, thereby thick part of the pier of pin 3a and screwed retaining ring 3b realize anticreep in conjunction with carrying out the bound position.Anticreep rotating shaft 3 is positioned at clamping plate combination 1 and tension rod 2 terminations, and on the longitudinal central axis line of clamping plate combination 1 and tension rod 2.
The contact surface of upper and lower clamping plate 1a, 1b is the plane, and sheet material 5 is clamped between upper and lower clamping plate 1a, the 1b, and unit bolt nut 1c is positioned at the outside of sheet material 5.Lower plate 1b extends to outside the termination of train wheel bridge 1a near an end of tension rod 2, and the extension be a semicircle, and pin 3a is threaded with screwed retaining ring 3b after passing the extension of tension rod 2 and lower plate 1b.
Can be as required, between tension rod 2 and the lower plate 1b, between lower plate 1b and the screwed retaining ring 3b smooth pad 4 is set.
Embodiment 2:
As shown in Figure 3, Figure 4 turn to prestressing force sheet material clamping tension ground tackle certainly, form by clamping plate combination 1, tension rod 2 and anticreep rotating shaft 3, the right-hand member of clamping plate combination 1 and the left end of tension rod 2 are hinged by anticreep rotating shaft 3, can relatively rotate around anticreep rotating shaft 3 between clamping plate combination 1 and the tension rod 2.Clamping plate combination 1 is made up of train wheel bridge 1a, lower plate 1b and unit bolt nut 1c, upper and lower clamping plate 1a, 1b each side are symmetrically arranged with 5 groups of unit bolt nut 1c, unit bolt nut 1c tightens together upper and lower clamping plate 1a, 1b for securing member commonly used.Anticreep rotating shaft 3 is made up of screw rod 3c and screwed retaining ring 3b, and anticreep rotating shaft 3 is positioned at clamping plate combination 1 and tension rod 2 terminations, and on the longitudinal central axis line of clamping plate combination 1 and tension rod 2.
The contact surface of upper and lower clamping plate 1a, 1b is the plane, and sheet material 5 is clamped between upper and lower clamping plate 1a, the 1b, and unit bolt nut 1c is positioned at the outside of sheet material 5.Lower plate 1b extends to outside the termination of train wheel bridge 1a near an end of tension rod 2, and the extension is semicircle.The lower end of screw rod 3c is fixed on the extension of lower plate 1b, screw thread has been attacked in the upper end, the upper end of this screw rod 3c is passed tension rod 2 backs and is threaded with screwed retaining ring 3b, and screw rod 3c and lower plate 1b are affixed to be a member, thereby lower plate 1b and screwed retaining ring 3b realize anticreep in conjunction with carrying out the bound position.
Can be as required, between tension rod 2 and screwed retaining ring 3b and the root of screw rod 3c smooth pad 4 is set.
Embodiment 3:
As Fig. 5, the prestressing force sheet material clamping tension ground tackle that turns to certainly shown in Figure 6, be with the difference of embodiment 2: the upper end of screw rod 3c is fixed on the tension rod 2, screw thread has been attacked in the lower end, the lower end of this screw rod 3c is threaded with screwed retaining ring 3b after passing the extension of lower plate 1b, screw rod 3c and tension rod 2 are affixed to be a member, thereby tension rod 2 and screwed retaining ring 3b realize anticreep in conjunction with carrying out the bound position.
Equally, can be as required, between lower plate 1b and screwed retaining ring 3b and the root of screw rod 3c smooth pad 4 is set.
Embodiment 4:
As Fig. 7, the prestressing force sheet material clamping tension ground tackle that turns to certainly shown in Figure 8, be with the difference of embodiment 1: train wheel bridge 1a and lower plate 1b fit together by curved surface, and isometric and both right-hand member of train wheel bridge 1a and lower plate 1b is semicircle.Pin 3a is threaded with screwed retaining ring 3b after passing train wheel bridge 1a, tension rod 2 and lower plate 1b successively.
Equally, can be as required, between train wheel bridge 1a and the tension rod 2, between tension rod 2 and the lower plate 1b smooth pad 4 is set.
Certainly, the unit bolt nut that is symmetricly set on the left and right sides of upper and lower clamping plate is not limited to 5 groups; The right-hand member of train wheel bridge is extended to outside the termination of lower plate, and anticreep rotating shaft via hole (or screw rod) is arranged on the train wheel bridge; The two ends of anticreep rotating shaft all can be arranged to thick (or two ends all are threaded with screwed retaining ring) the above lower limit of pier; The extension that train wheel bridge or lower plate right-hand member are used to be provided with anticreep rotating shaft via hole (or screw rod) can also be rectangle, half elliptic or other shapes, as long as can rotate between clamping plate combination and the tension rod; The anticreep rotating shaft not necessarily is arranged on the extension, also can be set in place on other positions of clamping plate combination longitudinal central axis line; The above all drops within the protection domain of the present utility model.
Claims (5)
1. one kind turns to prestressing force sheet material clamping tension ground tackle certainly, comprise clamping plate combination (1) and tension rod (2), it is characterized in that: described clamping plate combinations (1) are hinged by anticreep rotating shaft (3) with described tension rod (2), and described anticreep rotating shaft (3) is positioned on the longitudinal central axis line of described clamping plate combinations (1) and tension rod (2); Described clamping plate combinations (1) are made up of train wheel bridge (1a), lower plate (1b) and unit bolt nut (1c), and described unit bolt nut (1c) is symmetricly set on the left and right sides of described upper and lower clamping plate (1a, 1b) and upper and lower clamping plate (1a, 1b) are tightened together.
2. described from turning to prestressing force sheet material clamping tension ground tackle according to claim 1, it is characterized in that: described lower plate (1b) extends to outside the termination of described train wheel bridge (1a) near an end of described tension rod (2), described anticreep rotating shaft (3) is made up of pin (3a) and screwed retaining ring (3b), and described pin (3a) is threaded with described screwed retaining ring (3b) after passing the extension of described tension rod (2) and lower plate (1b).
3. described from turning to prestressing force sheet material clamping tension ground tackle according to claim 1, it is characterized in that: described lower plate (1b) extends to outside the termination of described train wheel bridge (1a) near an end of described tension rod (2), described anticreep rotating shaft (3) is made up of screw rod (3c) and screwed retaining ring (3b), the lower end of described screw rod (3c) is fixed on the extension of described lower plate (1b), and the upper end of this screw rod (3c) is passed described tension rod (2) back and is threaded with described screwed retaining ring (3b).
4. described from turning to prestressing force sheet material clamping tension ground tackle according to claim 1, it is characterized in that: described lower plate (1b) extends to outside the termination of described train wheel bridge (1a) near an end of described tension rod (2), described anticreep rotating shaft (3) is made up of screw rod (3c) and screwed retaining ring (3b), the upper end of described screw rod (3c) is fixed on the described tension rod (2), and the lower end of this screw rod (3c) is threaded with described screwed retaining ring (3b) after passing the extension of described lower plate (1b).
5. described from turning to prestressing force sheet material clamping tension ground tackle according to claim 1, it is characterized in that: described train wheel bridge (1a) fits together by curved surface with lower plate (1b), described anticreep rotating shaft (3) is made up of pin (3a) and screwed retaining ring (3b), and described pin (3a) passes described train wheel bridge (1a), tension rod (2) and lower plate (1b) back successively and is threaded with described screwed retaining ring (3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201409794U CN202064523U (en) | 2011-05-06 | 2011-05-06 | Self-steering prestressed sheet clamping and stretching anchorage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201409794U CN202064523U (en) | 2011-05-06 | 2011-05-06 | Self-steering prestressed sheet clamping and stretching anchorage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064523U true CN202064523U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201409794U Expired - Lifetime CN202064523U (en) | 2011-05-06 | 2011-05-06 | Self-steering prestressed sheet clamping and stretching anchorage device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202064523U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075014A (en) * | 2013-02-06 | 2013-05-01 | 全恩懋 | Tensional anchoring system for secondary clamping of prestressed sheets |
| CN103541514A (en) * | 2013-10-22 | 2014-01-29 | 张涛涛 | Multipurpose connector, anchor head and assembly for connecting FRP (Fiber Reinforced Plastic) rebars |
| CN109444030A (en) * | 2018-11-01 | 2019-03-08 | 东南大学 | FRP plate material/sheet material the corrosion testing apparatus and method of self-correction prestressing force angle |
| CN110186751A (en) * | 2019-05-17 | 2019-08-30 | 天津大学 | A kind of clamping plate type anchorage for light circle pultrusion CFRP bar drawing test |
| CN110258931A (en) * | 2019-07-11 | 2019-09-20 | 兰州恒驰预应力科技有限公司 | A kind of clipping anchor of prestressing force |
| CN110984614A (en) * | 2019-12-18 | 2020-04-10 | 重庆科技学院 | CFRP sheet clamping anchorage device with adjustable angle |
| CN113215997A (en) * | 2021-05-19 | 2021-08-06 | 赵启林 | Composite material prestress tension anchoring method and system based on shape memory alloy |
-
2011
- 2011-05-06 CN CN2011201409794U patent/CN202064523U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075014A (en) * | 2013-02-06 | 2013-05-01 | 全恩懋 | Tensional anchoring system for secondary clamping of prestressed sheets |
| CN103541514A (en) * | 2013-10-22 | 2014-01-29 | 张涛涛 | Multipurpose connector, anchor head and assembly for connecting FRP (Fiber Reinforced Plastic) rebars |
| CN103541514B (en) * | 2013-10-22 | 2015-09-16 | 张涛涛 | A kind of multiplex connector, anchor head and composite member connected for FRP muscle material |
| CN109444030A (en) * | 2018-11-01 | 2019-03-08 | 东南大学 | FRP plate material/sheet material the corrosion testing apparatus and method of self-correction prestressing force angle |
| CN110186751A (en) * | 2019-05-17 | 2019-08-30 | 天津大学 | A kind of clamping plate type anchorage for light circle pultrusion CFRP bar drawing test |
| CN110258931A (en) * | 2019-07-11 | 2019-09-20 | 兰州恒驰预应力科技有限公司 | A kind of clipping anchor of prestressing force |
| CN110984614A (en) * | 2019-12-18 | 2020-04-10 | 重庆科技学院 | CFRP sheet clamping anchorage device with adjustable angle |
| CN110984614B (en) * | 2019-12-18 | 2021-07-16 | 重庆科技学院 | CFRP sheet clamping anchorage device with adjustable angle |
| CN113215997A (en) * | 2021-05-19 | 2021-08-06 | 赵启林 | Composite material prestress tension anchoring method and system based on shape memory alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |