CN203755466U - Rusted reinforced concrete frame plane joint strengthening device - Google Patents
Rusted reinforced concrete frame plane joint strengthening device Download PDFInfo
- Publication number
- CN203755466U CN203755466U CN201420160009.4U CN201420160009U CN203755466U CN 203755466 U CN203755466 U CN 203755466U CN 201420160009 U CN201420160009 U CN 201420160009U CN 203755466 U CN203755466 U CN 203755466U
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- steel strand
- reinforced concrete
- concrete frame
- frame plane
- anchor
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Abstract
The utility model discloses a rusted reinforced concrete frame plane joint strengthening device and relates to the field of strengthening of rusted reinforced concrete frame plane joints. Anchor bearing plates are fixed on the lateral sides of one third position of a beam through structural adhesives, two upper and lower PC (poly carbonate) steel rods cross the core area height of the beam and are connected with the anchor bearing plates in a drawing manner, four steel strand carriers are fixed on two sides of columns, steel strands penetrate variable-section preformed holes of the steel strand carriers on the lateral sides of the columns and flared preformed holes on anchor plates, the anchor plates at the ends of the beam are connected in a drawing manner and applied by certain prestress, the outer sides of the anchor plates fix the steel strands through clamp plates, the steel strands are arranged on the outer walls of corrugated pipes, the beam at two ends of a joint can generate certain restraint action on the joint, and the steel strands at the joint can directly bear shearing force. The rusted reinforced concrete frame plane joint strengthening device can effectively solve the problems that existing strengthening methods are high in construction difficulty, complicated in procedures, lagged in secondary stress structure strain, poor in strengthening effect and the like.
Description
Technical field
The utility model relates to Corroded Reinforced Concrete frame plane joint reinforcing field, be specifically related to a kind of Corroded Reinforced Concrete frame plane joint reinforcing device.
Background technology
Frame joint is most important in total system, once node destroys, will cause frame construction that local or entirety destruction occurs, and Progressive Collapse even can occur, and consequence is hardly imaginable.Did the research of much reinforcing about concrete frame node both at home and abroad, the reinforcement means of employing is: method, concrete jacket reinforcing method, steel bushing reinforcing method, stick steel plate and outer subsides GFRP reinforcing method of enlarging section etc.There is many shortcomings in these reinforcement means, for example: structure unloading difficulty, and the shortcoming such as cost is higher, secondary loading structural strain lags behind, consolidation effect is not good, site operation is inconvenient.At present, few with steel strand reinforced research in positive and negative crook about Corroded Reinforced Concrete frame plane node, in China's structural strengthening specification, do not mention the reinforcing design requirement of this aspect yet.
Summary of the invention
For the deficiency existing in prior art, the utility model object is to be to provide a kind of Corroded Reinforced Concrete frame plane joint reinforcing device, the problem such as can effectively solve that existing reinforcement means difficulty of construction is large, complex procedures, secondary loading structural strain lag behind, consolidation effect is not obvious; Can be used for improving the bearing capacity of Corroded Reinforced Concrete frame construction, strengthen its anti-seismic performance.
To achieve these goals, the utility model is to realize by the following technical solutions: Corroded Reinforced Concrete frame plane joint reinforcing device, comprise clamping plate, nut, anchor plate, anchor slab, steel strand, beam, steel strand bracket, post, PC rod iron and bellows, / 3rd sides, place, beam two ends are fixed with anchor plate by structure glue, the core space height that upper and lower two PC rod irons are crossed over beam is by nut and anchor plate drawknot, four steel strand brackets are fixed on the both sides of post, steel strand run through the horn-like preformed hole on variable cross-section preformed hole and the anchor slab of steel strand bracket of post side, the anchor slab drawknot of beam-ends is got up, and apply certain prestressing force, steel strand are fixed by clamping plate in anchor slab outside, steel strand are arranged on bellows outer wall, thereby make the beam at node two ends produce certain effect of contraction to it, make the steel strand of Nodes directly bear shearing simultaneously.
As preferably, the variable cross-section preformed hole on described steel strand bracket, the diameter of preformed hole diminishes from outside to inside gradually, and the diameter of bellows is slightly less than the external diameter of variable cross-section preformed hole and the external diameter of horn-like preformed hole.
As preferably, described height of nut is 1.5 times of PC rod iron diameter.
The utlity model has following beneficial effect:
1. consolidation effect is good.From the truss model of frame plane joint cores, link the left and right end of beam by steel strand, and apply prestressing force, this not only can make the steel strand of joint cores directly bear shearing, simultaneously for frame plane node was carried good effect of contraction, bearing capacity and the rigidity of section that can greatly improve like this joint cores, strengthened the anti-seismic performance of joint cores.
2. stressed more reasonable.When under the effect of frame joint at seismic load or under reciprocating load, this utility model device makes structure stress reasonable.Because the position of steel strand drawknot is: beam-ends 1/3rd places, and applied prestressing force, and as long as there is external load effect, external load must first consume the prestressing force that steel strand produce, steel strand can be born the load of original structure stressed generation for the first time.Can greatly alleviate like this ess-strain level of original structure, make the problem that in ruggedized construction, ubiquitous stress lags behind obtain effective solution, and greatly improved the stress performance of joint cores.
3. device design is ingenious, easy to use, does not meet up to now with it similarly bracing means.Steel strand are positioned at the position of the Reinforcement up and down of beam, meet mechanics principle, and therefore, this utility model is not destroyed original structure, equally also can effectively solve the problem that causes depression of bearing force due to corrosion of steel bar.
4. construction is simple.Have not need to increase and support, there is no Site Welding, do not need heavy-duty machinery, also do not need unloading, cost is low, and the duration is short etc.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the construction profile of the utility model in the application of Corroded Reinforced Concrete frame joint;
Fig. 2 is the orthography structure chart of the utility model in the application of Corroded Reinforced Concrete frame joint;
Fig. 3 is the orthographic drawing of a whole set of steel strand anchoring device of beam-ends;
Fig. 4 is the A-A sectional drawing of a whole set of steel strand anchoring device of beam-ends;
Fig. 5 is the B-B sectional drawing of a whole set of steel strand anchoring device of beam-ends;
Fig. 6 is the schematic diagram of PC rod iron of the present utility model;
Fig. 7 is the schematic diagram of the supporting nut of the utility model and PC rod iron;
Fig. 8 is steel strand bracket side perspective view;
Fig. 9 is the A-A sectional drawing of Fig. 8.
Detailed description of the invention
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with detailed description of the invention, further set forth the utility model.
With reference to Fig. 1-9, this detailed description of the invention is by the following technical solutions: the anchor plate 4, anchor slab 5 and the clamping plate 2 that comprise beam 7, post 10, beam 7 end 1/3rd place's types, be anchored at the steel strand bracket 8 of post 10 both sides, PC rod iron 11 and nut 3, and apply prestressed steel strand 6 and bellows 14 thereof.First the concrete cover of three points of part both sides corrosion crackings of beam 7 end is removed; according to the position of steel pin on anchor plate at 7 liang of side perforatings of beam; then by structure glue, anchor plate is fixed on to the side of beam 7, crosses over the core space height of beam with upper and lower two PC rod irons 11, anchor plate 4 is carried out to drawknot.The position of fixing steel strand bracket 8 in the both sides of post 10, removes the concrete cover of corrosion cracking, and then two side perforatings at post according to the position of bracket 8 pin are fixed on four steel strand brackets 8 by structure glue the both sides of post 10.Steel strand 6 run through the horn-like preformed hole 12 on variable cross-section preformed hole 13 and the anchor slab of bracket 8 of post 10 sides, anchor slab 5 drawknots of beam 7 ends are got up, and apply certain prestressing force, then with the fixing steel strand 6 of clamping plate 2.
It should be noted that the variable cross-section preformed hole 13 on described steel strand bracket 8, the diameter of preformed hole diminishes from outside to inside gradually, and section is that the diameter of bellows 14 is slightly less than the external diameter of variable cross-section preformed hole 13 and horn-like preformed hole 12.
In addition, described nut 3, it is highly 1.5 times of PC rod iron 11 diameters.
This detailed description of the invention is studied and is shown by the Corroded Reinforced Concrete frame plane node that device is reinforced, and crack resistance, the bearing capacity of joint cores all increase significantly, and ductility also can meet the requirement of frame joint anti-seismic performance.The utility model, as the effective bracing means of one of reinforcing Corroded Reinforced Concrete frame plane node, in CORRODED REINFORCED CONCRETE STRUCTURE seismic hardening, will have good prospect.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. Corroded Reinforced Concrete frame plane joint reinforcing device, it is characterized in that, comprise clamping plate (2), nut (3), anchor plate (4), anchor slab (5), steel strand (6), beam (7), steel strand bracket (8), post (10), PC rod iron (11) and bellows (14), / 3rd sides, place, beam (7) two ends are fixed with anchor plate (4) by structure glue, upper and lower two PC rod irons (11) are crossed over the core space height of beam (7) by nut (3) and anchor plate (4) drawknot, four steel strand brackets (8) are fixed on the both sides of post (10), steel strand (6) run through the horn-like preformed hole (12) on variable cross-section preformed hole (13) and the anchor slab (5) of steel strand bracket (8) of post (10) side, anchor slab (5) outside is by the fixing steel strand (6) of clamping plate (2), steel strand (6) are arranged on bellows (14) outer wall.
2. Corroded Reinforced Concrete frame plane joint reinforcing device according to claim 1, it is characterized in that, variable cross-section preformed hole on described steel strand bracket (8), the diameter of preformed hole diminishes from outside to inside gradually, and the diameter of bellows (14) is slightly less than the external diameter of variable cross-section preformed hole (13) and the external diameter of horn-like preformed hole (12).
3. Corroded Reinforced Concrete frame plane joint reinforcing device according to claim 1, is characterized in that, described nut (3) is highly 1.5 times of PC rod iron diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160009.4U CN203755466U (en) | 2014-04-03 | 2014-04-03 | Rusted reinforced concrete frame plane joint strengthening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160009.4U CN203755466U (en) | 2014-04-03 | 2014-04-03 | Rusted reinforced concrete frame plane joint strengthening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203755466U true CN203755466U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160009.4U Expired - Fee Related CN203755466U (en) | 2014-04-03 | 2014-04-03 | Rusted reinforced concrete frame plane joint strengthening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203755466U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869520A (en) * | 2017-04-12 | 2017-06-20 | 福州大学 | A kind of reinforced beam bracing means and its installation method |
| CN111677107A (en) * | 2020-05-26 | 2020-09-18 | 淮阴工学院 | Novel assembled connected node |
| CN114352052A (en) * | 2021-12-15 | 2022-04-15 | 江苏海洋大学 | Method for reinforcing concrete frame node |
-
2014
- 2014-04-03 CN CN201420160009.4U patent/CN203755466U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869520A (en) * | 2017-04-12 | 2017-06-20 | 福州大学 | A kind of reinforced beam bracing means and its installation method |
| CN106869520B (en) * | 2017-04-12 | 2023-04-28 | 福州大学 | Reinforced concrete beam reinforcing device and installation method thereof |
| CN111677107A (en) * | 2020-05-26 | 2020-09-18 | 淮阴工学院 | Novel assembled connected node |
| CN114352052A (en) * | 2021-12-15 | 2022-04-15 | 江苏海洋大学 | Method for reinforcing concrete frame node |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170403 |