CN202380638U - Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials - Google Patents
Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials Download PDFInfo
- Publication number
- CN202380638U CN202380638U CN2011204811549U CN201120481154U CN202380638U CN 202380638 U CN202380638 U CN 202380638U CN 2011204811549 U CN2011204811549 U CN 2011204811549U CN 201120481154 U CN201120481154 U CN 201120481154U CN 202380638 U CN202380638 U CN 202380638U
- Authority
- CN
- China
- Prior art keywords
- steel sleeve
- pipe
- sleeve pipe
- mild steel
- core concrete
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
A concrete filled steel tube column with the bottom provided with soft steel sleeve and the inside embedded with high toughness materials comprises an inner pipe (1), core concrete (2), a soft steel sleeve (3), a bolt (4) and high toughness composite materials (6). The soft steel sleeve (3) is disposed at the bottom of an ordinary concrete filled steel tube, and high performance composite materials (6) are embedded between the soft steel sleeve (3) and the inner pipe (1). Under the action of frequent earthquakes, integral working performance of the bottom soft steel sleeve and the ordinary concrete-filled steel tube column is good, rigidity is large, and strength is also large. Under the action of rare occurrence earthquake, bolts suffer severe shear damage, connection of the inner pipe and an outer pipe is weakened, co-working performance deteriorates, the inner pipe and the outer pipe begin to give full play to ductility and energy consumption, overall rigidity becomes smaller, structure cycle becomes longer, and earthquake action is reduced. The fact that the soft steel sleeve is added means that an earthquake-proof defense line is added, structural safety is improved, and early harm and damage of high strength steel plates can be prevented and postponed.
Description
Technical field
The utility model relates to the steel core concrete column of the embedded high tenacity material of a kind of root bottom part band mild steel sleeve pipe, belongs to the energy dissipation and damping control field in the building structure.
Background technology
Society is in progress, and people's living standard is also improving constantly, and various forms of buildings emerge in an endless stream, and satisfy the building of different functions of use and also arise at the historic moment.No matter be highly or profile, very big development is all arranged, this just needs the construction that new theory and new technology support this type building.Under the demand of social development, encased structures also just produces thereupon.
Concrete filled steel tube is made up of steel pipe and two kinds of materials of concrete, because the effect of pipe inner concrete, the stability of steel pipe wallboard improves a lot, and avoids or has delayed the too early generation cripling of steel pipe wallboard; Steel pipe is to the effect of contraction of its core concrete simultaneously; Make concrete be in the stress state of high complexity, thereby concrete intensity is improved, plasticity and toughness properties improve; The combination of two kinds of materials has remedied shortcoming separately, makes its material property obtain giving full play to.
When finding the encased structures premium properties through lot of test, Chinese scholars also finds there is the some shortcomings part.Encased structures destroys the position and generally all occurs in its bottom under severe earthquake action, and it is bent that local drum takes place the steel pipe wallboard easily; Afterwards because the decline of steel pipe wallboard bearing capacity; Inner concrete effect of contraction is weakened, cause steel pipe bight weld seam to be torn, the core concrete of the outside convex camber corresponding site of steel pipe is serious crisp broken; And this moment, its superstructure possibly also not reach surrender; The performance of material is not fully exerted, and has caused the serious waste of material, and a large amount of earthquake phenomenons have also proved this point.
The seismic design that is applied as building of mild-steel energy-consumption cushion technique and high tenacity material and seismic hardening provide a brand-new thinking, realize damping control and anti-seismic performance for high-rise and super highrise building an effective approach is provided.
The utility model content
The utility model technical problem to be solved is: improve the anti-seismic performance of encased structures, delay or avoid because the destruction that encased structures bottom steel pipe drum song causes structure or member, give full play to the potential performance of material.The utility model has proposed the steel core concrete column of the embedded high tenacity material of a kind of bottom band mild steel sleeve pipe in order to address this problem.
The technical scheme that the utility model adopts is:
The steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe, it is characterized in that: said steel core concrete column comprises interior pipe, core concrete, mild steel sleeve pipe, bolt and high-ductility composite material; Interior pipe inside is perfused with core concrete, and the tube wall inboard, bottom or the outside of interior pipe are socketed with the mild steel sleeve pipe, and interior pipe is connected fixing with the mild steel sleeve pipe through bolt; Be embedded with high-ductility composite material between interior pipe and the mild steel sleeve pipe; The mild steel sleeve pipe put in the bottom ground or basic end face and with its anchoring, anchorage length should meet designing requirement.
Said steel core concrete column concrete filled steel tube is circle or square-section.
Pipe is rectangular steel pipe or round steel pipe in said.
Said mild steel sleeve pipe height above ground level or basic end face is 1.0h, and wherein h is the diameter in long limit size in rectangular steel pipe cross section or round steel pipe cross section.Just strengthen the plastic hinge territory of steel core concrete column, delay or avoid the destruction of concrete filled steel tube column bottom, improve its seismic bearing capacity and energy dissipation capacity.
Said high-ductility composite material comprises polymer modified cement-concrete, rubber fine aggregate cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.
Be provided with bolt hole at mild steel sleeve pipe and the corresponding position of interior pipe, the diameter of mild steel sleeve pipe upper bolt hole is a bit larger tham the diameter of bolt, and the diameter of bolt is not less than the thickness of mild steel sleeve pipe and interior pipe.
The quantity of bolt hole should be according to the actual requirement of engineering setting; And should not be less than two rows; The level of every row's bolt hole is not more than 200mm with vertical spacing; High-ductility composite material to guarantee mild steel sleeve pipe and interior pipe and embedding contact closely, and the Kong Jing of same row's different directions is apart from being not less than 20mm, makes bolt can pass interior the pipe and mild steel sleeve pipe and reduce the weakening to same horizontal section smoothly.
The wall thickness of pipe in the thickness of mild steel sleeve pipe is not less than.
The thickness of high-ductility composite material is not less than the thickness of mild steel sleeve pipe, and is not less than 20mm.
The practice of the steel core concrete column of the embedded high tenacity material of above-mentioned bottom band mild steel sleeve pipe, production order is following:
For the situation of mild steel casing pipe sleeve at interior pipe lateral surface:
1) at the mild steel sleeve pipe corresponding position two-way reservation bolt hole of interior pipe with its bottom;
2) corresponding nut in the lateral surface correspondence position welding at the bolt hole place that interior pipe is reserved places between interior pipe and the mild steel sleeve pipe nut;
3) with the mild steel casing pipe sleeve in the tube wall outside, interior pipe bottom, and internally the mild steel sleeve pipe of pipe and bottom carries out correct positioning, manage in making and the same row of mild steel sleeve pipe on bolt hole on same level height;
4) penetrate bolt at the bolt hole place that reserves, the nut screwing clamping bolt through between interior pipe and the mild steel sleeve pipe pours into core concrete then in interior pipe;
5) also fastening nut on the bolt that exposes in the outside forms certain precompression, between mild steel sleeve pipe and interior pipe, embeds high-ductility composite material, is the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe after the moulding;
For the situation of mild steel casing pipe sleeve at interior pipe medial surface:
1) at the mild steel sleeve pipe corresponding position two-way reservation bolt hole of interior pipe with its bottom;
2) corresponding nut in the medial surface correspondence position welding at the bolt hole place that interior pipe is reserved places between interior pipe and the mild steel sleeve pipe nut;
3) with the mild steel casing pipe sleeve in interior pipe bottom tube wall inboard, and internally the mild steel sleeve pipe of pipe and bottom carries out correct positioning, manage in making and the same row of mild steel sleeve pipe on bolt hole on same level height;
4) penetrate bolt at the bolt hole place that reserves, through the nut screwing clamping bolt between interior pipe and the mild steel sleeve pipe;
5) also fastening nut on the bolt that exposes in the outside; Form certain precompression; Between mild steel sleeve pipe and interior pipe, embed high-ductility composite material, build core concrete afterwards again, be the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe after the moulding.
The steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe of the utility model; Because steel core concrete column is after concreting; Tight a bolt and embed high-ductility composite material again after producing precompression; The rigidity of mild steel sleeve pipe and inner steel pipe connecting portion with respect to steel duct concrete rigidity a little less than, formed an iron hand in a velvet glove structure, this structure helps the energy dissipation capacity under geological process; Can give full play to the energy dissipation capacity of outside mild-steel energy-consumption steel pipe and inner steel pipe, make it under geological process, show more excellent performance.
The steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe of the utility model, its inner high tensile steel tube can bear bigger load action, practices thrift steel, but bent or rupture failure are roused in large deformation down easily repeatedly.Experimental study under the low cycle repetitive load effect shows, the destruction of steel core concrete column mainly is surrender, flexing and the rupture failure of root steel pipe.
Beneficial effect
Compare with the common steel tube concrete column, the utlity model has following advantage:
Under the frequently occurred earthquake effect, concrete filled steel tube is stressed less, at this moment bottom mild steel sleeve pipe and interior pipe friction energy-dissipating under the effect of bolt pressure; This moment, the existence of bolt not only improved its friction energy-dissipating ability, and mild steel sleeve pipe and interior pipe are connected as a single entity, and its integral working is good, and rigidity is big, and intensity is also big, has good seismic bearing capacity; Under the rarely occurred earthquake effect, it is serious that bolt is cut damage, and the contact of interior pipe and mild steel sleeve pipe weakens; The co-operation performance degradation, interior pipe, mild steel sleeve pipe begin to give full play to separately its ductility and power consumption effect, and structure collectivity rigidity reduces; Natural vibration period is elongated, and geological process reduces, after the concrete filled steel tube column bottom increases mild steel sleeve pipe and high-ductility composite material; Be equivalent to increase anti-vibration defense lines one, improved the safety of structure.
The outside in the scope of plastic hinge territory, concrete filled steel tube column bottom adds the mild steel sleeve pipe; Embed high-ductility composite material again; Rarely occurred earthquake effect outside mild steel sleeve pipe is down at first surrendered; Consume the energy of earthquake input structure, can bring into play its drag and ductility effect, played preventing or delay the too early damage of high-strength steel sheet and the effect of destruction until structure or component damage.
Description of drawings
Fig. 1 is the floor map of the rectangular steel-tube concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe;
Fig. 2 is the floor map of the round steel pipe concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe;
Fig. 3 is the A-A sectional drawing among Fig. 1;
Fig. 4 is the B-B sectional drawing among Fig. 1;
Fig. 5 is the A-A section among Fig. 2;
Fig. 6 is the B-B sectional drawing among Fig. 2;
Fig. 7 is the floor map of mild steel sleeve pipe at the rectangular steel-tube concrete column of column body;
Fig. 8 is the floor map of mild steel sleeve pipe at the round steel pipe concrete column of column body;
Fig. 9 is the A-A sectional drawing among Fig. 7;
Figure 10 is the A-A sectional drawing among Fig. 8;
Wherein: pipe in the 1-, 2-core concrete, 3-mild steel sleeve pipe (outer tube), 4-bolt, 5-nut, 6-high-ductility composite material, 7-ground or basic end face.
The specific embodiment
Below in conjunction with specific embodiment the utility model is further specified:
As shown in Figure 1, pipe 1, core concrete 2, mild steel sleeve pipe 3, bolt 4 and high-ductility composite material 6 in the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe comprises.The steel core concrete column of the embedded high tenacity material of this bottom band mild steel sleeve pipe and sectional drawing such as Fig. 3 and shown in Figure 4 of the practice.Interior pipe 1 inside is perfused with core concrete 2, and the tube wall inboard, bottom or the outside of interior pipe 1 are socketed with mild steel sleeve pipe 3, and interior pipe 1 is connected fixing with mild steel sleeve pipe 3 through bolt 4; Be embedded with high-ductility composite material 6 between interior pipe 1 and the mild steel sleeve pipe 3; Mild steel sleeve pipe 3 put in the bottom ground or basic end face 7 and with its anchoring.The steel core concrete column concrete filled steel tube is the square-section.Interior pipe 1 is a rectangular steel pipe.The height of mild steel sleeve pipe 3 end faces 7 above ground level or basic is 1.0h, and wherein h is long limit, rectangular steel pipe cross section size.High-ductility composite material 6 comprises polymer modified cement-concrete, rubber fine aggregate cement concrete, general fibre concrete and high tenacity cement based fibrous concrete.Be provided with bolt hole in mild steel sleeve pipe 3 and interior pipe 1 corresponding position, the diameter of mild steel sleeve pipe 3 upper bolt holes is a bit larger tham the diameter of bolt 4, and the diameter of bolt 4 is not less than the thickness of mild steel sleeve pipe 3 and interior pipe 1.The quantity of bolt hole should be according to the actual requirement of engineering setting, and should not be less than two rows, and the level of every row's bolt hole is not more than 200mm with vertical spacing, and the Kong Jing of same row's different directions is apart from being not less than 20mm.The wall thickness of pipe 1 in the thickness of mild steel sleeve pipe 3 is not less than.The thickness of high-ductility composite material 6 is not less than the thickness of mild steel sleeve pipe 3, and is not less than 20mm.Its production order is following:
1) at interior pipe 1 and the mild steel sleeve pipe 3 corresponding position two-way reservation bolt hole bottom it;
2) corresponding nut 5 in the lateral surface correspondence position welding at the bolt hole place that interior pipe 1 is reserved places between interior pipe 1 and the mild steel sleeve pipe 3 nut 5;
3) mild steel sleeve pipe 3 is enclosed within the pipe 1 bottom tube wall outside, and internally manage 1 and carry out correct positioning with the mild steel sleeve pipe 3 of bottom, the bolt hole in making on the same row of pipe 1 and mild steel sleeve pipe 3 is on same level height;
4) penetrate bolt 4 at the bolt hole place that reserves, tight a bolt 4, then perfusion core concrete 2 in interior pipe 1 through the nut 5 between interior pipe 1 and the mild steel sleeve pipe 3;
5) also fastening nut 5 on the bolt 4 that exposes in the outside forms certain precompression, between mild steel sleeve pipe 3 and interior pipe 1, embeds high-ductility composite material 6, is the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe after the moulding.
As shown in Figure 2, the section form of the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe is circular, its sectional drawing such as Fig. 5 and shown in Figure 6.Its basic principle and anti-seismic performance and preparation method and embodiment 1 are basic identical.
As shown in Figure 7, in order to guarantee attractive in appearance on the outer facade of structure, the inside of pipe 1 in the mild steel sleeve pipe 3 of the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe is placed on, its sectional drawing is as shown in Figure 9.So exteriorly, the steel core concrete column and the common steel tube concrete column of the embedded high tenacity material of this bottom band mild steel sleeve pipe are as broad as long, but its anti-seismic performance obviously is superior to the common steel tube concrete column.Present embodiment should be earlier embeds high-ductility composite material in inside, afterwards concreting again; Because high-ductility composite material is inner at concrete filled steel tube, and is higher to construction technical requirement, under the condition that meets design requirement, also can no longer embed high-ductility composite material, direct concreting, its preparation method and embodiment 1 are basic identical.
As shown in Figure 8, in order to guarantee attractive in appearance on the outer facade of structure, the mild steel sleeve pipe of the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe is placed on the inside of cylinder, and its sectional drawing is shown in figure 10.The difference of present embodiment and embodiment 3 is the different of section form, and present embodiment is circular, other and embodiment 3 basically identicals.
More than be the exemplary embodiments of the utility model, the enforcement of the utility model is not limited thereto.
Claims (7)
1. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe, it is characterized in that: said steel core concrete column comprises interior pipe (1), core concrete (2), mild steel sleeve pipe (3), bolt (4) and high-ductility composite material (6); Interior pipe (1) inside is perfused with core concrete (2), and the tube wall inboard, bottom or the outside of interior pipe (1) are socketed with mild steel sleeve pipe (3), and interior pipe (1) is connected fixing with mild steel sleeve pipe (3) through bolt (4); Be embedded with high-ductility composite material (6) between interior pipe (1) and the mild steel sleeve pipe (3); Mild steel sleeve pipe (3) put in the bottom ground or basic end face (7) and with its anchoring.
2. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 1, it is characterized in that: said steel core concrete column concrete filled steel tube is circle or square-section.
3. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 1 is characterized in that: pipe (1) is rectangular steel pipe or round steel pipe in said.
4. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 3; It is characterized in that: the height of said mild steel sleeve pipe (3) end face above ground level or basic (7) is 1.0h, and wherein h is the diameter in long limit size in rectangular steel pipe cross section or round steel pipe cross section.
5. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 1; It is characterized in that: be provided with bolt hole at mild steel sleeve pipe (3) and the corresponding position of interior pipe (1); The diameter of mild steel sleeve pipe (3) upper bolt hole is a bit larger tham the diameter of bolt (4), and the diameter of bolt (4) is not less than the thickness of mild steel sleeve pipe (3) and interior pipe (1).
6. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 1, it is characterized in that: the thickness of mild steel sleeve pipe (3) is not less than the wall thickness of interior pipe (1).
7. the steel core concrete column of the embedded high tenacity material of bottom band mild steel sleeve pipe as claimed in claim 1, it is characterized in that: the thickness of high-ductility composite material (6) is not less than the thickness of mild steel sleeve pipe (3), and is not less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204811549U CN202380638U (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204811549U CN202380638U (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202380638U true CN202380638U (en) | 2012-08-15 |
Family
ID=46629150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204811549U Withdrawn - After Issue CN202380638U (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202380638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409809A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof |
| CN109653440A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete composite column structure |
| CN109653402A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete combined shear wall construction |
-
2011
- 2011-11-28 CN CN2011204811549U patent/CN202380638U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409809A (en) * | 2011-11-28 | 2012-04-11 | 北京工业大学 | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof |
| CN109653440A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete composite column structure |
| CN109653402A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete combined shear wall construction |
| CN109653440B (en) * | 2019-01-25 | 2023-08-29 | 华侨大学 | Steel plate-ultra-high strength concrete composite column structure |
| CN109653402B (en) * | 2019-01-25 | 2024-02-27 | 华侨大学 | Steel plate-ultra-high strength concrete combined shear wall structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102409783B (en) | Manufacturing method of bottom double composite section steel shear wall with reinforced concrete frame and inside-hidden steel plate | |
| CN108442569B (en) | Function-recoverable energy consumption reinforced concrete shear wall and construction method thereof | |
| CN202831402U (en) | Concrete filled steel tubular column with inner-connected circular pipe and outer-sleeved concrete filled steel tube | |
| CN102535749A (en) | Double-function multi-cavity steel tube concrete column provided with soft steel sleeve at bottom, and manufacturing method thereof | |
| CN102409782A (en) | Steel tube concrete frame inbuilt steel plate shear wall with soft steel sleeves at bottom and producing method of steel tube concrete frame inbuilt steel plate shear wall | |
| CN202627254U (en) | Shear wall consisting of vertical mild steel energy consumption belts with horizontal seams arranged among concrete-filled steel tubes | |
| CN202380607U (en) | Shearing wall with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame | |
| CN102409808B (en) | Steel tube concrete superposed column with mild steel casing outer packed concrete at bottom and preparation method thereof | |
| CN102409809B (en) | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof | |
| CN101025034A (en) | Special-shaped steel pipe concrete-core column | |
| CN208533868U (en) | A kind of novel arrangement of reinforcement hollow steel pipe high-strength concrete column | |
| CN202380574U (en) | Core barrel with mild steel sleeves at bottoms and hidden steel plates in concrete-filled steel tube frame | |
| CN202380638U (en) | Concrete filled steel tube column with bottom provided with soft steel sleeve and inside embedded with high toughness materials | |
| CN203080744U (en) | Steel plate and high-strength concrete combination shear wall | |
| CN102561552A (en) | Steel tube concrete shear wall comprising vertical soft steel energy consuming straps with horizontal seams and manufacturing method | |
| CN2900658Y (en) | Accentric support | |
| CN102409756B (en) | Steel tube concrete frame inbuilt steel plate core cylinder with soft steel sleeves at bottom and producing method of steel tube concrete frame inbuilt steel plate core cylinder | |
| CN102409755B (en) | Section steel concrete frame inbuilt steel plate core cylinder with doubly superimposed bottom and producing method thereof | |
| CN102409807B (en) | Steel reinforced concrete laminated column with mild steel plate surrounding concrete at bottom and manufacturing method thereof | |
| CN206800795U (en) | A kind of hollow multi-cavity steel tube concrete post | |
| CN206941799U (en) | The prestressing force assembling type node construction of beam-ends friction energy-dissipating | |
| CN203603524U (en) | Reinforced stone structure with through-wall steel reinforcement framework and steel wire gauze | |
| CN201011049Y (en) | Special shaped steel pipe concrete core pole | |
| CN202578022U (en) | Bearing wall reinforcing body | |
| CN202380639U (en) | Steel tube concrete composite column with bottom soft steel sleeve and encased concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120815 Effective date of abandoning: 20131127 |
|
| RGAV | Abandon patent right to avoid regrant |