CN204418530U - A kind of height-adjustable external prestressing anchor device - Google Patents
A kind of height-adjustable external prestressing anchor device Download PDFInfo
- Publication number
- CN204418530U CN204418530U CN201520013073.4U CN201520013073U CN204418530U CN 204418530 U CN204418530 U CN 204418530U CN 201520013073 U CN201520013073 U CN 201520013073U CN 204418530 U CN204418530 U CN 204418530U
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- steel plate
- bolt hole
- anchor
- anchor slab
- height
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Abstract
The utility model relates to a kind of height-adjustable external prestressing anchor device, belongs to Structural Engineering field.The utility model comprises: anchor bracket, end steel plate, anchor slab, and end steel plate and anchor bracket are welded to connect, and steel plate bottom, described end has elongated hole, and elongated hole bilateral symmetry is provided with end steel plate bolt hole; Described anchor slab is arranged anchor slab bolt hole, described anchor slab bolt hole is corresponding with end steel plate bolt hole.The utility model opens elongated hole on the steel plate of end, wants symmetry to squeeze into double bolt hole on elongated hole both sides simultaneously, and fix the position of prestressed reinforcement after convenient adjustment height, bolt hole spacing is determined according to Code for design of steel structures.Anchor slab bolt hole spacing is corresponding with end steel plate bolt hole spacing.The utility model have effectively achieved the function regulating external prestressing steels height at any time; Reusable experimental facilities, realizes the adjustment of different degree of prestressing; Adequately achieve the advantage of steel plate materials, and construction is simple, feasibility is high.
Description
technical field:
The utility model relates to a kind of height-adjustable external prestressing anchor device, belongs to Structural Engineering field.
background technology:
At present, the application of external prestressing in stabilization works is more and more extensive, wherein anchor device is most important device in external prestressing structure, and it is mainly used in post stretching structure or component, in order to permanent maintenance presstressed reinforcing steel pulling force and passed to concrete component.At present, the prestressed anchor fixing apparatus that external prestressing strengthening adopts is fixed prestressed reinforcement to realize mainly through components such as fixing ground tackle and anchor slabs, anchor slab is identical with presstressed reinforcing steel diameter with hole reserved on the steel plate of end, external tendon support height cannot be changed after reinforcing completes, the adjustment of external prestressing steels support height under different degree of prestressing can not be realized.
utility model content:
The purpose of this utility model is to provide a kind of height-adjustable external prestressing anchor device, and under the arrangement achieves different degree of prestressing, external prestressing steels support height is adjustable, simple structure, easy construction.
Technical solution:
The present invention includes: anchor bracket, end steel plate, anchor slab, end steel plate be welded to connect at bottom bracket, it is characterized in that, steel plate bottom, described end has elongated hole, and elongated hole bilateral symmetry is provided with end steel plate bolt hole; Described anchor slab is arranged anchor slab bolt hole, described anchor slab bolt hole is corresponding with end steel plate bolt hole.
Described anchor slab centre bore is elongated hole.
The maximum angle that the hole size of the elongated hole on described anchor slab is adjusted by reinforcing bar is determined.
The utility model opens elongated hole on the steel plate of end, on the steel plate of end, want symmetry to squeeze into double bolt hole simultaneously, the position of presstressed reinforcing steel is fixed after convenient adjustment height, and the arrangement of bolt on component should meet stressed, structure and construction requirement, this requirement is determined by actual components size and diameter of bolt hole according to Code for design of steel structures.Anchor slab bolt hole spacing is corresponding with end steel plate bolt hole spacing.
The utility model is owing to being generally all applied to the tension side of beam to External prestressed during beam Shi Hanzhang by stretch-draw external prestressing steels, i.e. generally downside in beam, the position of Shi Hanzhang, therefore the bolt hole that end steel plate is squeezed into only need be squeezed in middle downside, steel plate top, end does not need to beat bolt hole.In order to avoid stress loss, on anchor slab, presstressed reinforcing steel penetrates bore hole size and will determine according to the maximal angle value of actual external prestressing reinforcing bar adjustment, can not with rebar sizes equal and opposite in direction.
Beneficial effect:
A, have effectively achieved the function regulating external prestressing steels height at any time.
B, reusable experimental facilities, realize the adjustment of different degree of prestressing.
C, adequately achieve the advantage of steel plate materials, and construction is simple, feasibility is high.
accompanying drawing illustrates:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model anchored framework schematic diagram;
Fig. 3 the utility model scheme of installation;
Fig. 4 is the I-I figure of Fig. 3;
Fig. 5 is the lateral view of Fig. 3.
detailed description of the invention:
Embodiment 1
The utility model anchor bracket is by two blocks of side direction steel plates 8, bottom surface steel plate 5, the longitudinal floor 3 of horizontal ribbed 4, first longitudinal floor 2, second, top steel plate 9 form, described two blocks of side direction steel plates 8 and bottom surface steel plate 5 are attached to both sides and the bottom surface of beam respectively, top steel plate 9 welds on the side panels, owing to also needing to weld horizontal ribbed 4 and longitudinal floor 2 and 3 with transmission concentrated force to ensure that component partial is stable at bearing place, the position of component 2,3,4 is determined by the position of actual end steel plate reserving hole, only need avoid hole location.End steel plate 1 welds formation overall structure with anchor bracket, elongated hole 10 is opened in the middle and lower part of end steel plate, two row's bolts hole evenly will be made a call in side, hole, bolt hole will according to Code for design of steel structures meet on component stressed, structure and construction requirement, simultaneously also corresponding with 4 anchor slab bolt hole spacing on anchor slab, anchor slab centre bore is elongated hole 11, and the pore size of the elongated hole 11 on described anchor slab is determined by beam-ends presstressed reinforcing steel inclination angle.
Use procedure
Anchor device has the pulling force of permanent maintenance presstressed reinforcing steel and is passed to the effect of concrete component, presstressed reinforcing steel is fixed by intermediate plate ground tackle 7 and anchor slab 6, anchor slab is close on the steel plate of end concentrated stress is passed to end steel plate uniformly, the stretch-draw of presstressed reinforcing steel height can be regulated at any time to change degree of prestressing by the elongated hole 10 on the steel plate of end in the process of tension of prestressed tendon in vitro, different height correspond to different degree of prestressing.Position just can use bolt to fix the position of external prestressing steels by mooring anchor crab bolt hole and end steel plate bolt hole after determining.Can change stretch-draw support height at any time, easy construction in experiment and practice process, this utility model have effectively achieved the adjustment of different degree of prestressing.
Claims (3)
1. a height-adjustable external prestressing anchor device, comprise: anchor bracket, end steel plate, anchor slab, end steel plate and anchor bracket are welded to connect, and it is characterized in that, steel plate bottom, described end has elongated hole, and elongated hole bilateral symmetry is provided with end steel plate bolt hole; Described anchor slab is arranged anchor slab bolt hole, described anchor slab bolt hole spacing is corresponding with end steel plate bolt hole spacing.
2. the height-adjustable external prestressing anchor device of one according to claim 1, is characterized in that, anchor slab centre bore is elongated hole.
3. the height-adjustable external prestressing anchor device of one according to claim 2, is characterized in that, the pore size of the elongated hole on anchor slab is determined by beam-ends presstressed reinforcing steel inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013073.4U CN204418530U (en) | 2015-01-09 | 2015-01-09 | A kind of height-adjustable external prestressing anchor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013073.4U CN204418530U (en) | 2015-01-09 | 2015-01-09 | A kind of height-adjustable external prestressing anchor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204418530U true CN204418530U (en) | 2015-06-24 |
Family
ID=53468914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520013073.4U Expired - Fee Related CN204418530U (en) | 2015-01-09 | 2015-01-09 | A kind of height-adjustable external prestressing anchor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204418530U (en) |
-
2015
- 2015-01-09 CN CN201520013073.4U patent/CN204418530U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20180109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |