CN204373829U - A kind of steel bundle prestress test macro - Google Patents
A kind of steel bundle prestress test macro Download PDFInfo
- Publication number
- CN204373829U CN204373829U CN201520076428.4U CN201520076428U CN204373829U CN 204373829 U CN204373829 U CN 204373829U CN 201520076428 U CN201520076428 U CN 201520076428U CN 204373829 U CN204373829 U CN 204373829U
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- plate
- backing plate
- centre
- fixedly connected
- anchor backing
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of steel bundle prestress test macro, comprise detection module, centre-hole jack, control module, constraints module and test chassis; Described test chassis one end is fixedly connected with described detection module, and the other end is fixedly connected with described centre-hole jack; Described constraints module is divided into fixing group and stretch-draw group, the described fixing group of work anchor slab comprising work anchor backing plate and be connected with work anchor backing plate, described stretch-draw group comprises moveable anchor version, moveable anchor backing plate and flexible adapter, described moveable anchor version, moveable anchor backing plate, flexible adapter connect in turn, described flexible adapter is connected with centre-hole jack, and described centre-hole jack is connected with control module by oil pipe.The utility model can have very wide accommodation and steel bundle to be measured length to the steel bundle radical tested simultaneously is longer, and test result is closer to real working condition.
Description
Technical field
The utility model relates to the technical field of stress test, the technical field of particularly steel bundle prestress test.
Background technology
Along with the progress of bridge technology, the application of large-span concrete makes pontic span increasing, this wherein has benefited from the raising of concrete strength, namely by wearing prestressed strand in concrete, pressure is applied to concrete, counteract concrete part tension working load, make concrete intensity improve several times.But occurred in the Prestressed Concrete Bridges of building in early days a lot of beam body cracking, under the bad phenomenon such as to disturb, one of its Causing Factors is that loss of prestress is comparatively large, and this brings danger to the safety operating of bridge.
Prestressed strand is the crucial primary structure member in prestressed bridge girder construction, and loss of prestress has a strong impact on the use safety of bridge, detects seem very important to steel bundle effective prestress.But current steel bundle prestress detection equipment mostly cannot have good adaptability to the steel bundle radical tested simultaneously, and the effective prestress testing cost of steel bundle is higher.
Summary of the invention
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of steel bundle prestress test macro, and can have very wide accommodation to the steel bundle radical tested simultaneously, the length of steel bundle to be measured is longer, and test result is closer to real working condition.
For achieving the above object, the utility model proposes a kind of steel bundle prestress test macro, comprise detection module, centre-hole jack, control module, constraints module and test chassis; Described test chassis one end is fixedly connected with described detection module, and the other end is fixedly connected with described centre-hole jack; Described detection module comprises flange seat, the stress gatherer be fixed on flange seat, and described flange seat is fixedly connected on one end of described test chassis; Described constraints module is divided into fixing group and stretch-draw group, the described fixing group of work anchor slab comprising work anchor backing plate and be connected with work anchor backing plate, and described work anchor backing plate is fixedly connected with described stress gatherer; Described stretch-draw group comprises moveable anchor version, moveable anchor backing plate and flexible adapter, and described moveable anchor version, moveable anchor backing plate, flexible adapter connect in turn, and described flexible adapter is connected with centre-hole jack; Described stress gatherer is connected with described control module by wire, and described centre-hole jack is connected with control module by oil pipe.
As preferably, described test chassis comprises feet, support bar and is equally all square front end-plate, intermediate plate, end plate, described feet is fixedly connected with end plate with front end-plate respectively, described support bar is four and two ends are fixedly connected with end plate with front end-plate respectively, described intermediate plate by arranging through hole through four described support bars and front end-plate and end plate on four angles, the center of described front end-plate, intermediate plate and end plate all offers steel beam hole, and the center of circle of steel beam hole all on the same line.
As preferably, be all fastenedly connected by stretching force between described work anchor slab and work anchor backing plate and between moveable anchor version and moveable anchor backing plate.
The beneficial effects of the utility model: the utility model, by the long test chassis with supporting bar structure, makes the length of tested steel bundle closer to actual condition; The flexible strong adaptability of adapter to moveable anchor version makes the scope of steel bundle prestress test machine tested steel bundle radical improve further, reduces the cost of prestressed strand test.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structure principle chart of the utility model steel bundle prestress test macro;
Fig. 2 is the explosive view of physical construction in the utility model;
Fig. 3 is the structural representation of stress gatherer in the utility model.
In figure: work anchor slab, 42-work anchor backing plate, 43-moveable anchor version, 44-moveable anchor backing plate, 45-of 1-centre-hole jack, 2-test chassis, 3-detection module, 4-constraints module, 5-control module, 21-feet, 22-steel beam hole, 23-end plate, 24-support bar, 25-intermediate plate, 26-end plate, 41-stretches adapter, 31-flange seat.
[embodiment]
Consult Fig. 1, Fig. 2 and Fig. 3, the utility model, comprise detection module 3, centre-hole jack 1, control module 5, constraints module 4 and test chassis 2; Described test chassis 2 one end is fixedly connected with described detection module 3, and the other end is fixedly connected with described centre-hole jack 1; Described detection module 3 comprises flange seat 31, the stress gatherer 32 be fixed on flange seat 31, and described flange seat 31 is fixedly connected on one end of described test chassis 2; Described constraints module 4 is divided into fixing group and stretch-draw group, the described fixing group of work anchor slab 41 comprising work anchor backing plate 42 and be connected with work anchor backing plate 42, and described work anchor backing plate 42 is fixedly connected with described stress gatherer 3; Described stretch-draw group comprises moveable anchor version 43, moveable anchor backing plate 44 and flexible adapter 45, and described moveable anchor version 43, moveable anchor backing plate 44, flexible adapter 45 connect in turn, and described flexible adapter 45 is connected with centre-hole jack 1; Described stress gatherer 3 is connected with described control module 5 by wire, and described centre-hole jack 1 is connected with control module 5 by oil pipe.
As preferably, described test chassis 2 comprises feet 21, support bar 24 and be equally all square front end-plate 23, intermediate plate 25, end plate 26, described feet 21 is fixedly connected with end plate 26 with front end-plate 23 respectively, described support bar 24 is four and two ends are fixedly connected with end plate 26 with front end-plate 23 respectively, described intermediate plate 25 by arranging through hole through four described support bars 24 and front end-plate 23 and end plate 26 on four angles, described front end-plate 23, the center of intermediate plate 25 and end plate 26 all offers steel beam hole 22, the center of circle of described steel beam hole 22 all on the same line.
As preferably, be all fastenedly connected by stretching force between described work anchor slab 41 and work anchor backing plate 42 and between moveable anchor version 43 and moveable anchor backing plate 44.
Utility model works process:
The utility model steel bundle prestress test macro in the course of the work, first by steel bundle from work anchor slab 41 one end, successively through work anchor slab 41, work anchor backing plate 42, detection module 3, then the steel beam hole 22 laid respectively on front end-plate 26, intermediate plate 25 and end plate 23 is continued across, finally wear out from instrument anchor slab 43 through centre-hole jack 1, flexible adapter 45, moveable anchor backing plate 44 again, and for steel bundle folder Upper gasket is fixed in the anchor hole of anchor slab 41 and moveable anchor version 43 that works; Feed-through hydraulic top 1 oil-feed is started by control module 5, make feed-through hydraulic top 1 to instrument anchor slab 43 one end applied thrust, work anchor slab 41 one end compresses work anchor backing plate 42 because of the stretching of steel bundle, and pressure is transmitted to stress gatherer 3, the signal detected sends to control module 5 to process by stress gatherer 3; When the steel bundle once loading stretching force test is more, needs to change larger moveable anchor version 43, now can re-assembly flexible adapter 45, make it adapt to larger moveable anchor version 43.
The utility model, by the long test chassis with supporting bar structure, makes the length of tested steel bundle closer to actual condition; The flexible strong adaptability of adapter to moveable anchor version makes the scope of steel bundle prestress test machine tested steel bundle radical improve further, reduces the cost of prestressed strand test.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (3)
1. a steel bundle prestress test macro, is characterized in that: comprise detection module (3), centre-hole jack (1), control module (5), constraints module (4) and test chassis (2); Described test chassis (2) one end is fixedly connected with described detection module (3), and the other end is fixedly connected with described centre-hole jack (1); Described detection module (3) comprises flange seat (31), the stress gatherer (32) be fixed on flange seat (31), and described flange seat (31) is fixedly connected on one end of described test chassis (2); Described constraints module (4) is divided into fixing group and stretch-draw group, the described fixing group of work anchor slab (41) comprising work anchor backing plate (42) and be connected with work anchor backing plate (42), and described work anchor backing plate (42) is fixedly connected with described stress gatherer (3); Described stretch-draw group comprises moveable anchor version (43), moveable anchor backing plate (44) and flexible adapter (45), described moveable anchor version (43), moveable anchor backing plate (44), flexible adapter (45) connect in turn, and described flexible adapter (45) is connected with centre-hole jack (1); Described stress gatherer (3) is connected with described control module (5) by wire, and described centre-hole jack (1) is connected with control module (5) by oil pipe.
2. steel bundle prestress test macro as claimed in claim 1, it is characterized in that: described test chassis (2) comprises feet (21), support bar (24) and be equally all square front end-plate (23), intermediate plate (25), end plate (26), described feet (21) is fixedly connected with end plate (26) with front end-plate (23) respectively, described support bar (24) is four and two ends are fixedly connected with end plate (26) with front end-plate (23) respectively, described intermediate plate (25) is positioned at front end-plate (23) and end plate (26) by arranging through hole on four angles through four described support bars (24), described front end-plate (23), the center of intermediate plate (25) and end plate (26) all offers steel beam hole (22), the center of circle of described steel beam hole (22) all on the same line.
3. steel bundle prestress test macro as claimed in claim 1, be is characterized in that: be all fastenedly connected by stretching force between described work anchor slab (41) and work anchor backing plate (42) and between moveable anchor version (43) and moveable anchor backing plate (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076428.4U CN204373829U (en) | 2015-02-03 | 2015-02-03 | A kind of steel bundle prestress test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076428.4U CN204373829U (en) | 2015-02-03 | 2015-02-03 | A kind of steel bundle prestress test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204373829U true CN204373829U (en) | 2015-06-03 |
Family
ID=53330040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520076428.4U Expired - Fee Related CN204373829U (en) | 2015-02-03 | 2015-02-03 | A kind of steel bundle prestress test macro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204373829U (en) |
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2015
- 2015-02-03 CN CN201520076428.4U patent/CN204373829U/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: 20150603 Termination date: 20170203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |