CN207296461U - The steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam - Google Patents
The steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam Download PDFInfo
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- CN207296461U CN207296461U CN201721090930.6U CN201721090930U CN207296461U CN 207296461 U CN207296461 U CN 207296461U CN 201721090930 U CN201721090930 U CN 201721090930U CN 207296461 U CN207296461 U CN 207296461U
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- steel plate
- tensioning
- reinforced concrete
- concrete beam
- stressed
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Abstract
It the utility model is related to a kind of steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam, for stretching steel plate, including anchorage bearing, tensioning support, tensioning stiffness supporting bar and hydraulic jack, the anchorage bearing is weldingly fixed on the anchored end of steel plate, the tensioning support is weldingly fixed on the stretching end of steel plate, described tensioning stiffness supporting bar one end is against on anchored end wedge-shaped steel plate bearing, one end provides stiffness support for hydraulic jack, one end of the hydraulic jack is against tensioning stiffness supporting bar end, the other end of hydraulic jack is counter to push away tensioning support.The utility model easy construction is easy, economic and reliable, is limited from construction space, easy to field conduct.
Description
Technical field
Structural strengthening renovation technique field is the utility model is related to, is reinforced more specifically to a kind of pre-stressed steel plate
The steel plate tensioned anchorage system of beams of concrete.
Background technology
Traditional concrete Cohesive-Steeled Reinforcement Technique belongs to passive enforcement, after destroying concrete structure produces stress deformation
Steel plate by tensioning and could play a role, and have certain Stress resort, the consolidation effect of generation is limited.And pre-stressed steel plate adds
Gu by the way of active is reinforced, concrete structure is protected by directly heating steel plate and producing prestressing force, can be given full play to
The high strength characteristics of steel plate, significantly improve consolidation effect.The prestress application mode that this kind is reinforced mainly includes steel plate and preheats, steel plate
Preheating is according to the principle expanded with heat and contract with cold, and is immersed in steel plate in the liquid of heat in advance, makes its expanded by heating, and length increases, so
Steel plate is anchored to the beam panel surface cleared up in the case where keeping steel plate temperature afterwards, will be to attachment when steel plate shrinkage
Beam slab produce prestressing force.But because execution conditions limit, temperature is difficult to control, steel plate preheating is caused to apply prestressed implementation difficult
Degree increase.
The content of the invention
The technical problems to be solved in the utility model is, there is provided a kind of easy-to-use pre-stressed steel plate reinforced concrete
The steel plate tensioned anchorage system of beam.
Technical solution is used by the utility model solves its technical problem：Construct a kind of pre-stressed steel plate and reinforce coagulation
The steel plate tensioned anchorage system of Tu Liang, for stretching steel plate, including anchorage bearing, tensioning support, tensioning stiffness supporting bar and
Hydraulic jack, the anchorage bearing are weldingly fixed on the anchored end of steel plate, and the tensioning support is weldingly fixed on of steel plate
Pull end, described tensioning stiffness supporting bar one end are against on anchored end wedge-shaped steel plate bearing, and one end provides strength for hydraulic jack
Property support, one end of the hydraulic jack is against tensioning stiffness supporting bar end, and the other end of hydraulic jack is counter to be pushed away
Draw bearing.
In such scheme, the tensioning support is connected by connecting bolt with the anchorage bearing on adjacent another steel plate.
In such scheme, the outside of the tensioning stiffness supporting bar is equipped with U-shaped limit card board, the limit card board weldering
Connect and fix on the steel plate.
In such scheme, the tensioning stiffness supporting bar is H profile steel or square tube.
In such scheme, the anchorage bearing is wedge shape, it includes the vertical steel plate of one piece of rectangle wide with steel plate and three
Angular ribbed stiffener.
In such scheme, the tensioning support is wedge shape, it includes the vertical steel plate of polylith and triangle ribbed stiffener.
In such scheme, the anchored end of the steel plate is fixed on girder construction concrete surface by anchor bolt.
In such scheme, the anchor bolt is chemical bolt.
Implement the steel plate tensioned anchorage system of the pre-stressed steel plate reinforced concrete beam of the utility model, have beneficial below
Effect：
1st, easy construction is easy, economic and reliable, is limited from construction space, easy to field conduct；
2nd, tensioning is carried out by hydraulic jack, its corresponding oil pressure gauge readings according to the actual stretching force of design requirement and
Stretching force-oil pressure force curve determines, convenient to control and check prestressing force size.
Brief description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is steel plate tensioned anchorage system plan of the present invention；
Fig. 2 is the A-A profiles in Fig. 1；
Fig. 3 is the B-B profiles in Fig. 1；
Fig. 4 is the C-C profiles in Fig. 1.
Embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, it is detailed now to compare attached drawing
Illustrate specific embodiment of the present utility model.
As shown in Figs 1-4, the steel plate tensioned anchorage system of the utility model pre-stressed steel plate reinforced concrete beam, for drawing
Steel plate 1 is stretched, it includes anchorage bearing 2, tensioning support 7, tensioning stiffness supporting bar 4 and hydraulic jack 6.
Anchorage bearing 2 is weldingly fixed on the anchored end of steel plate 1, and girder construction concrete should be first cleaned out before fixed anchored end
Surface, larger recess is smooth with the repairing of levelling glue, then steel plate 1 is positioned over to the surface of reinforcement 10, with 6 anchor bolts
3 the anchored end of steel plate 1 and beam face are fixed, and ensure solid and reliable, then anchorage bearing 2 are welded in anchored end.Anchoring
Bolt 3 is chemical bolt.Anchorage bearing 2 is wedge shape, by the vertical steel plate of one piece of rectangle wide with steel plate 1 and triangle ribbed stiffener
Composition.The size and spacing of triangle ribbed stiffener can be adjusted according to 1 width of steel plate, and it is to improve anchorage bearing 2 that it, which is acted on,
Stability.
Tensioning support 7 is welded on steel plate 1.Tensioning support 7 is wedge shape, by three blocks of vertical steel plates and triangle ribbed stiffener group
Into.To receive the propulsive thrust of the application of hydraulic jack 6, another two blocks vertical steel plates divide the vertical steel plate of adjacent hydraulic jack 6
It is other make a call to two circular mounting holes wear connection bolt 9 tighten fixation with the steel plate anchored end wedge-shaped steel plate bearing 8 that connects.Connect bolt 9
For high-strength bolt.
Fixed tensioning stiffness supporting bar 4 is H profile steel or square tube.Fixed 4 one end of tensioning stiffness supporting bar is against anchoring
On bearing 2, the other end is placed longitudinally along steel plate 1, and stiffness support is provided for 6 tensioning of hydraulic jack.Tensioning stiffness supporting rod
The outside of part 4 is equipped with U-shaped limit card board 5, and limit card board 5 is weldingly fixed on steel plate 1.Fixed tensioning stiffness supporting bar 4
It is fastened on steel plate 1, ensures tensioning safety.
Hydraulic jack 6 is positioned between fixed tensioning stiffness supporting bar 4 and tensioning support 7, according to design and in advance should
The actual stretching force of power technological requirement demarcates hydraulic jack, then tensioning.Tensioning branch is pushed away by the way that hydraulic jack 6 is counter
Seat 7 has the function that tensioning steel plate 1.Stretching process must be monitored beam deformation displacement and steel plate stress, strain.
After the completion of tensioning, connection bolt 9 is tightened, and hydraulic jack 6 is unloaded, while observes answering for steel plate 1
Power situation of change.Situation about being decreased obviously if there is 1 stress of steel plate, then should first look at anchorage bearing 2 and the steel plate that connects
Whether anchored end wedge-shaped steel plate bearing 8 and the welding of steel plate are good.Just should be that connection bolt 9 is not tightened if good.It must weigh at this time
New loading jack 6, can appropriate 10% stretching force of ultra stretching.Tensioning is completed to unload jack 6 again after tightening connection bolt 9,
And steel plate stress variation situation is observed, until steel plate stress meets the tension stress requirement of design steel plate.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, rather than restricted, this area it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (8)
- A kind of 1. steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam, for stretching steel plate, it is characterised in that bag Anchorage bearing, tensioning support, tensioning stiffness supporting bar and hydraulic jack are included, the anchorage bearing is weldingly fixed on steel plate Anchored end, the tensioning support are weldingly fixed on the stretching end of steel plate, and described tensioning stiffness supporting bar one end is against anchored end On wedge-shaped steel plate bearing, one end provides stiffness support for hydraulic jack, and one end of the hydraulic jack is against tensioning stiffness Supporting bar end, the other end of hydraulic jack is counter to push away tensioning support.
- 2. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 1, it is characterised in that The tensioning support is connected by connecting bolt with the anchorage bearing on adjacent another steel plate.
- 3. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 1, it is characterised in that The outside of the tensioning stiffness supporting bar is equipped with U-shaped limit card board, and the limit card board is welded and fixed on the steel plate.
- 4. the steel plate tensioned anchorage system of the pre-stressed steel plate reinforced concrete beam according to claim 1 or 3, its feature exist In the tensioning stiffness supporting bar is H profile steel or square tube.
- 5. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 1, it is characterised in that The anchorage bearing is wedge shape, it includes the vertical steel plate of one piece of rectangle wide with steel plate and triangle ribbed stiffener.
- 6. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 1, it is characterised in that The tensioning support is wedge shape, it includes the vertical steel plate of polylith and triangle ribbed stiffener.
- 7. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 1, it is characterised in that The anchored end of the steel plate is fixed on girder construction concrete surface by anchor bolt.
- 8. the steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam according to claim 7, it is characterised in that The anchor bolt is chemical bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090930.6U CN207296461U (en) | 2017-08-29 | 2017-08-29 | The steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090930.6U CN207296461U (en) | 2017-08-29 | 2017-08-29 | The steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam |
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| Publication Number | Publication Date |
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| CN207296461U true CN207296461U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721090930.6U Active CN207296461U (en) | 2017-08-29 | 2017-08-29 | The steel plate tensioned anchorage system of pre-stressed steel plate reinforced concrete beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173125A (en) * | 2019-04-11 | 2019-08-27 | 广东中青建筑科技有限公司 | A kind of method of the external prestressing transplanting anti-bend reinforced beam of steel plate |
-
2017
- 2017-08-29 CN CN201721090930.6U patent/CN207296461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173125A (en) * | 2019-04-11 | 2019-08-27 | 广东中青建筑科技有限公司 | A kind of method of the external prestressing transplanting anti-bend reinforced beam of steel plate |
| CN110173125B (en) * | 2019-04-11 | 2021-06-08 | 广东中青建筑科技有限公司 | Method for reinforcing beam by bending-resistant steel plate in external prestress transplantation |
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