CN206070381U - Beam body tension tool - Google Patents
Beam body tension tool Download PDFInfo
- Publication number
- CN206070381U CN206070381U CN201621019144.2U CN201621019144U CN206070381U CN 206070381 U CN206070381 U CN 206070381U CN 201621019144 U CN201621019144 U CN 201621019144U CN 206070381 U CN206070381 U CN 206070381U
- Authority
- CN
- China
- Prior art keywords
- anchor slab
- anchor
- beam body
- plate
- limiting plate
- Prior art date
- 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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Abstract
This utility model provides a kind of beam body tension tool.Include a spiral bar, in beams of concrete body, the anchor plate of a cup-shaped is penetrated outside spiral bar, anchor slab is installed on the outside of anchor plate, limiting plate is installed on the outside of anchor slab, the external spacer shell of limiting plate, limiting plate withstand jack by spacer shell, jack is protruding piston rod, and piston rod top is provided with instrument anchor slab；Described anchor slab is pressed on the rim of a cup of anchor plate；One end of described spacer shell is stretched in beams of concrete body, and the other end exposes concrete beam body surface；Through hole is additionally provided with the middle of described anchor slab and instrument anchor slab, for the steel wire through tensioning, work clip sheet is installed for clamping steel wire in through hole.This utility model simple structure, makes easy, is prevented from corrosion, and easy for installation, mobility strong, reduces stress concentration, improve anchoring effect.
Description
Technical field
This utility model is related to the technical field of construction that builds a bridge, and is related specifically to a kind of beam body tension tool.
Background technology
When bridge structure spaning middle section lower edge does not allow to occur tension or institute's tension stress transfinites, generally require to carry out
Prestressed reinforcement, common prestressed reinforcement measure is externally pre-stressed concrete method for strengthening, the work progress of the reinforcement means
It is as follows：First in beam sides or bottom surface implantation Ribbed Bar, then the assembling reinforcement net in bar planting, deformed bar is positioned afterwards, and
Casting concrete (or laying anchor block and steering block), treats that institute's casting concrete reaches design strength post-stress muscle,
The arrangement form of presstressed reinforcing steel is linear type or fold-line-shaped.
Though above-mentioned externally pre-stressed concrete method for strengthening can play a part of prestressed reinforcement to a certain extent, deposit
In following weak point：Firstth, need in the concrete of the newly-increased 20cm～50cm in beam side or beam bottom, bridge deadweight increase compared with
Greatly and unsightly；Secondth, presstressed reinforcing steel is exposed in atmosphere, need to periodically take measures to prevent presstressed reinforcing steel corrosion, be difficult to support
Protect and late maintaining is costly；3rd, increase newly presstressed reinforcing steel power performance it is poor, need to take measures reduce presstressed reinforcing steel with
The resonance effect of structure；4th, presstressed reinforcing steel need to be bent up by anchoring according to structure stress and construction features, bends up positioning main
Realize by steering block, at steering block and anchor block, stress is more concentrated；Steering block will be produced very big once loosening or sliding
Loss of prestress even prestressed failure；5th, it is very limited to the stiffness contribution of original structure.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of simple structure, system
Make easy, presstressed reinforcing steel is embedded in beam body, prevent corrosion, and easy for installation, mobility strong, reduce stress concentration, improve
The beam body tension tool of anchoring effect.
To achieve these goals, this utility model is employed the following technical solutions：
Beam body tension tool, it is characterised in that include a spiral bar, in beams of concrete body, outside spiral bar
The anchor plate of a cup-shaped is penetrated, anchor slab is installed on the outside of anchor plate, limiting plate, limiting plate external are installed on the outside of anchor slab
Individual spacer shell, limiting plate withstand jack by spacer shell, and jack is protruding piston rod, and piston rod top is provided with work
Tool anchor slab；Described anchor slab is pressed on the rim of a cup of anchor plate；One end of described spacer shell is stretched in beams of concrete body, another
Expose concrete beam body surface in end；Through hole is additionally provided with the middle of described anchor slab and instrument anchor slab, for the steel wire through tensioning,
Work clip sheet is installed for clamping steel wire in through hole.
In such scheme, described anchor plate is that bottom opening is little, the big cup-shaped of open top, and in intermediate neck
Step is provided with, for blocking spiral bar.
In such scheme, instrument anchor slab gasket ring between described piston rod and instrument anchor slab, is also equipped with.
This utility model is had the advantages that as a result of above-mentioned technical proposal：
This utility model simple structure, makes easy, is prevented from corrosion, and easy for installation, mobility strong, reduces
Stress concentration, improves anchoring effect.
Description of the drawings
Fig. 1 is the overall structure figure of this utility model embodiment；
In figure：1st, concrete beam body 2, spiral bar 3, anchor plate 4, anchor slab 5, work clip sheet 6, limiting plate 7, transition
Set 8, jack 9, piston rod 10, instrument anchor slab gasket ring 11, instrument anchor slab.
Specific embodiment
In order that content of the present utility model is readily apparent understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to this utility model.
Beam body tension tool, includes a spiral bar 2, in concrete beam body 1, outside spiral bar 2 as shown in Figure 1
The anchor plate 3 of a cup-shaped is penetrated, anchor slab 4 is installed on the outside of anchor plate 3, limiting plate 6, limiting plate 6 are installed on the outside of anchor slab 4
An external spacer shell 7, limiting plate 6 withstand jack 8 by spacer shell 7, and jack 8 is protruding piston rod 9, piston rod
9 tops are provided with instrument anchor slab 11；Described anchor slab 4 is pressed on the rim of a cup of anchor plate 3；Stretch one end of described spacer shell 7
Enter in concrete beam body 1, the other end exposes 1 surface of concrete beam body；It is additionally provided with the middle of described anchor slab 4 and instrument anchor slab 11 logical
Hole, for the steel wire through tensioning, is provided with work clip sheet 5 for clamping steel wire in through hole.
In the present embodiment, described anchor plate 3 is that bottom opening is little, the big cup-shaped of open top, and in intermediate neck
Portion is provided with step, for blocking spiral bar 2.
In the present embodiment, instrument anchor slab gasket ring 10 is also equipped between described piston rod 9 and instrument anchor slab 11.
Particular embodiments described above, the technical problem solved to this utility model, technical scheme and beneficial effect are entered
Go further description, it is be should be understood that to the foregoing is only specific embodiment of the utility model, and without
It is in this utility model is limited, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (3)
1. beam body tension tool, it is characterised in that include a spiral bar, in beams of concrete body, wear outside spiral bar
Entering has the anchor plate of a cup-shaped, and anchor slab is provided with the outside of anchor plate, and limiting plate is provided with the outside of anchor slab, and limiting plate is external one
Spacer shell, limiting plate withstand jack by spacer shell, and jack is protruding piston rod, and piston rod top is provided with instrument
Anchor slab；Described anchor slab is pressed on the rim of a cup of anchor plate；One end of described spacer shell is stretched in beams of concrete body, the other end
Expose concrete beam body surface；Through hole is additionally provided with the middle of described anchor slab and instrument anchor slab, for the steel wire through tensioning, is led to
Work clip sheet is installed for clamping steel wire in hole.
2. beam body tension tool as claimed in claim 1, it is characterised in that described anchor plate is that bottom opening is little, top
The big cup-shaped of opening, and intermediate neck is provided with step, for blocking spiral bar.
3. beam body tension tool as claimed in claim 1, it is characterised in that also pacify between described piston rod and instrument anchor slab
Equipped with instrument anchor slab gasket ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019144.2U CN206070381U (en) | 2016-08-31 | 2016-08-31 | Beam body tension tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019144.2U CN206070381U (en) | 2016-08-31 | 2016-08-31 | Beam body tension tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206070381U true CN206070381U (en) | 2017-04-05 |
Family
ID=58435429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621019144.2U Expired - Fee Related CN206070381U (en) | 2016-08-31 | 2016-08-31 | Beam body tension tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206070381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815979A (en) * | 2017-10-30 | 2018-03-20 | 北京旭建工程科技发展有限责任公司 | A kind of box beam beam bottom prestressing force enhancing bracing means and its construction method |
-
2016
- 2016-08-31 CN CN201621019144.2U patent/CN206070381U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815979A (en) * | 2017-10-30 | 2018-03-20 | 北京旭建工程科技发展有限责任公司 | A kind of box beam beam bottom prestressing force enhancing bracing means and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20170831 |