CN211036701U - Double-wall concrete-filled steel tube bridge tower structure - Google Patents
Double-wall concrete-filled steel tube bridge tower structure Download PDFInfo
- Publication number
- CN211036701U CN211036701U CN201921844916.XU CN201921844916U CN211036701U CN 211036701 U CN211036701 U CN 211036701U CN 201921844916 U CN201921844916 U CN 201921844916U CN 211036701 U CN211036701 U CN 211036701U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- double
- wall
- steel
- bridge tower
- 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
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a double-wall steel pipe concrete bridge tower structure, which comprises a plurality of same and prefabricated double-wall steel pipe segments, wherein the double-wall steel pipe segments comprise an outer steel pipe, an inner steel pipe and a plurality of angle steels; fixed connection is assembled between the adjacent double-walled steel pipe festival section bottom of downside double-walled steel pipe festival section top and upside, form steel pipe tower festival section after a plurality of double-walled steel pipe festival sections are assembled, form double-walled steel pipe concrete bridge tower festival section after the interior steel pipe lateral wall of steel pipe tower festival section and the interior concreting in the space between the outer steel pipe inside wall, a plurality of double-walled steel pipe concrete bridge tower festival sections are assembled and are formed double-walled steel pipe concrete bridge tower, double-walled steel pipe concrete bridge tower is on the interior steel pipe inside wall left side of arranging suspension cable position department that needs, the right-hand member symmetry is fixed with a left side, right side bracket, a left side, right side bracket upper end department is fixed with horizontal steel anchor beam. The utility model discloses can reduce the construction cycle of bridge tower, and practice thrift construction cost, the whole anti fracture of this bridge tower structure, intensity is high.
Description
Technical Field
The utility model belongs to the technical field of the suspension cable bridge tower, concretely relates to double-walled concrete filled steel tube bridge tower structure.
Background
In recent years, with the vigorous development of infrastructure in China, the demand of large bridges is increasing, and the construction development of cable-stayed bridges is also becoming faster and faster. The cable-stayed bridge tower is commonly used in two types, namely a reinforced concrete bridge tower and a steel bridge tower, and the two types of the bridge towers have the defects in use, so that the construction period is long when the reinforced concrete bridge tower is adopted, the cost of manpower and material resources is large, and concrete on the surface of the bridge tower is easy to crack. The steel bridge tower is easy to buckle, and has large steel consumption and high manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-walled concrete-filled steel tube bridge tower structure can reduce the construction cycle of bridge tower, and practices thrift construction cost, and this bridge tower structure is whole anti fracture, and intensity is high.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a double-wall steel tube concrete bridge tower structure comprises a plurality of same and prefabricated double-wall steel tube segments, wherein each double-wall steel tube segment comprises a vertical outer steel tube, a vertical inner steel tube is arranged in the middle of the inner portion of the outer steel tube, the vertical heights of the inner steel tube and the outer steel tube are equal, the top end of the inner steel tube and the top end of the outer steel tube are at the same horizontal height, the bottom end of the inner steel tube and the bottom end of the outer steel tube are at the same horizontal height, and a plurality of same angle steels are fixedly connected between the outer side wall of the inner steel tube and the inner side wall of; the top end of the lower double-wall steel pipe segment is fixedly connected with the bottom end of the upper adjacent double-wall steel pipe segment, a plurality of double-wall steel pipe segments are assembled to form a steel pipe tower segment, concrete is poured into a gap between the inner steel pipe outer side wall and the outer steel pipe inner side wall of the steel pipe tower segment to form a double-wall steel pipe concrete bridge tower segment, the upper end of the lower double-wall steel pipe concrete bridge tower segment is assembled to fixedly connect the double-wall steel pipe segments, a plurality of upper double-wall steel pipe segments are assembled to form an upper steel pipe tower segment, concrete is poured into a gap between the inner steel pipe outer side wall and the outer steel pipe inner side wall of the upper steel pipe tower segment to form an upper double-wall steel pipe concrete bridge tower segment, and the rest on the principle is that a plurality of double-wall steel pipe concrete bridge tower segments fixedly connected from top to bottom are sequentially formed, a plurality of double-wall steel pipe concrete, the double-wall steel tube concrete bridge tower forms a bridge tower part exposed in the air, left and right brackets are symmetrically fixed at the left and right ends of the inner steel tube inner side wall of the position of the stay cable to be arranged on the double-wall steel tube concrete bridge tower, horizontal steel anchor beams are fixed at the upper ends of the left and right brackets, the upper parts of the stay cables on the left and right sides penetrate through the left and right side walls of the inner steel tube at the corresponding position respectively, and the upper parts of the stay cables on the left and right sides are anchored in the left and right parts of the steel anchor beams respectively.
Further, the angle steel is the equilateral angle steel, each angle steel is equal vertical arranging, the vertical length of each angle steel equals the vertical height of outer steel pipe, each angle steel top is in same level with outer steel pipe top, each angle steel is kept away from two perpendicular limits of right angle and is leaned on respectively in outer steel pipe inside wall relevant position department, and each angle steel keeps away from two perpendicular limits of right angle and respectively with outer steel pipe inside wall relevant position welded connection, the right angle perpendicular limit of each angle steel supports and leans on in steel pipe outside wall relevant position department, and the right angle of each steel pipe is erected limit and interior steel pipe outside wall relevant position welded connection, and adjacent angle steel is kept away from adjacent perpendicular limit of right angle adjacent.
And furthermore, the top end of the lower side double-wall steel pipe segment and the bottom end of the upper side adjacent double-wall steel pipe segment are connected by a flange plate and then are welded.
And furthermore, the top end of the lower side double-wall steel tube concrete bridge tower segment and the bottom end of the upper side adjacent double-wall steel tube segment are connected by a flange plate and then are welded.
Furthermore, the left bracket and the right bracket are respectively connected with the left end and the right end of the inner side wall of the inner steel pipe at corresponding positions in a welding manner.
Further, the steel anchor beam is horizontally placed on the upper end faces of the left and right brackets, the left portion of the steel anchor beam is fixedly connected with the left bracket through a high-strength bolt or is welded with the left bracket, and the right portion of the steel anchor beam is fixedly connected with the right bracket through a high-strength bolt or is welded with the right bracket.
Furthermore, the left end and the right end of the steel anchor beam are respectively welded with the left end and the right end of the inner side wall of the inner steel pipe at the corresponding positions.
Compared with the prior art, the beneficial effects of the utility model are that:
a plurality of same angle steels are fixedly connected between the outer side wall of the inner steel pipe and the inner side wall of the outer steel pipe to horizontally support the inner steel pipe and the outer steel pipe, and concrete is poured in a gap between the outer side wall of the inner steel pipe and the inner side wall of the outer steel pipe of the steel pipe tower section, so that the compression resistance of the concrete and the bending resistance of the steel pipes can be greatly enhanced, and the cracking resistance, the compression resistance, the bending resistance and the integral stress performance of the structure of the bridge tower can be improved;
the double-wall steel tube concrete bridge tower does not need to greatly change the existing equipment during manufacturing and construction, the technical requirements of personnel are not changed, the construction process flow is almost unchanged, and the double-wall steel tube and the angle steel flat support are arranged, so that the steel structures are used as a part of the permanent member of the double-wall steel tube concrete bridge tower, the construction stability and convenience of the bridge tower and the rigidity and stability of the whole bridge tower after the bridge is formed can be improved, the defects that the concrete outside the existing reinforced concrete bridge tower is easy to crack and the construction period is longer are overcome, and the construction period of the bridge tower can be shortened;
the construction method used by the double-wall steel tube concrete bridge tower is different from the common climbing formwork, turning formwork and prefabricating hoisting method, and the double-wall steel tube concrete bridge tower only needs to be spliced and connected in sequence on site for connecting the double-wall steel tube segments prefabricated in a factory at a certain height and then pouring concrete because the method does not need to carry out support, template lapping and concrete maintenance, the construction method is simple, the required construction period is short, and meanwhile, the cracking defect of the concrete bridge tower in construction and operation can be avoided;
the double-wall steel tube concrete bridge tower structurally combines the advantages of concrete and steel tubes together, and can enable the concrete to be in a lateral compression state, so that the compression strength of the concrete can be improved exponentially, and the cracking of the concrete is effectively prevented;
compared with a steel bridge tower, the double-wall steel tube concrete bridge tower has the advantages of steel material saving, cost reduction, strong yield resistance and template saving compared with a reinforced concrete bridge tower.
Drawings
Fig. 1 is a schematic top view of a double-walled steel pipe segment according to the present invention;
fig. 2 is a schematic front view of the structure of fig. 1.
Description of the drawings: 1. the steel anchor beam comprises an outer steel pipe, 2 an inner steel pipe, 3 an angle steel, 4 a left bracket, 5 a right bracket, 6 a steel anchor beam, 7 a stay cable and 8 a right-angle vertical edge.
Detailed Description
As shown in fig. 1 and 2, a double-wall steel tube concrete bridge tower structure comprises a plurality of same and prefabricated double-wall steel tube segments, wherein each double-wall steel tube segment comprises a vertical outer steel tube 1, a vertical inner steel tube 2 is arranged in the middle of the inner portion of the outer steel tube 1, the vertical heights of the inner steel tube 2 and the outer steel tube 1 are equal, the top end of the inner steel tube 2 and the top end of the outer steel tube 1 are at the same horizontal height, the bottom end of the inner steel tube 2 and the bottom end of the outer steel tube 1 are at the same horizontal height, and a plurality of same angle steels 3 are fixedly connected between the outer side wall of the inner steel tube 2 and the inner side wall of the; the top end of the lower double-wall steel pipe segment is fixedly connected with the bottom end of the upper adjacent double-wall steel pipe segment in an assembling way, a plurality of double-wall steel pipe segments are assembled to form a steel pipe tower segment, concrete is poured into a gap between the outer side wall of an inner steel pipe 2 and the inner side wall of an outer steel pipe 1 of the steel pipe tower segment to form a double-wall steel pipe concrete bridge tower segment, the upper end of the lower double-wall steel pipe concrete bridge tower segment is assembled to be fixedly connected with the double-wall steel pipe segments, a plurality of upper double-wall steel pipe tower segments are assembled to form an upper double-wall steel pipe tower segment, concrete is poured into a gap between the outer side wall of the inner steel pipe 2 and the inner side wall of the outer steel pipe 1 of the upper steel pipe tower segment to form an upper double-wall steel pipe concrete bridge tower segment, and the rest on the same, a plurality of double-wall steel pipe concrete bridge tower segments are assembled, the double-wall steel tube concrete bridge tower forms a bridge tower part exposed in the air, a left bracket 4 and a right bracket 5 are symmetrically fixed at the left end and the right end of the inner side wall of an inner steel tube 2 at the position where a stay cable needs to be arranged, a horizontal steel anchor beam 6 is fixed at the upper ends of the left bracket 4 and the right bracket 5, the upper parts of stay cables 7 on the left side and the right side penetrate through the left side wall and the right side wall of the inner steel tube 2 at the corresponding position respectively, and the upper parts of the stay cables 7 on the left side and the right side are anchored in the left part and the right part of the steel anchor beam 6 respectively.
Wherein, angle steel 3 is the equilateral angle steel, the equal vertical arrangement of each angle steel 3, the vertical length of each angle steel 3 equals outer steel pipe 1's vertical height, each angle steel 3 top is in same level with 1 top of outer steel pipe, each angle steel 3 keeps away from two perpendicular limits of right angle and supports respectively and lean on in 1 inside wall relevant position department of outer steel pipe, and each angle steel 3 keeps away from two perpendicular limits of right angle and respectively with 1 inside wall relevant position welded connection of outer steel pipe, each angle steel 3's right angle perpendicular limit 8 supports and leans on in 2 outside wall relevant position departments of interior steel pipe, and the right angle of each steel pipe is erected limit 8 and 2 outside wall relevant position welded connection of interior steel pipe, and adjacent angle steel 3 keeps away from that the right-angled adjacent perpendicular limit is.
The top end of the lower double-wall steel pipe segment is connected with the bottom end of the upper adjacent double-wall steel pipe segment through a flange plate and then welded; the top end of the lower double-wall steel pipe concrete bridge tower segment and the bottom end of the upper adjacent double-wall steel pipe segment are connected through a flange plate and then are welded.
Wherein, the left bracket 4 and the right bracket 5 are respectively welded with the left end and the right end of the inner side wall of the inner steel pipe 2 at the corresponding positions; the steel anchor beam 6 is horizontally placed on the upper end surfaces of the left bracket 4 and the right bracket 5, the left part of the steel anchor beam 6 is fixedly connected with the left bracket 4 through a high-strength bolt or the left part of the steel anchor beam 6 is welded with the left bracket 4, the right part of the steel anchor beam 6 is fixedly connected with the right bracket 5 through a high-strength bolt or the right part of the steel anchor beam 6 is welded with the right bracket 5; the left end and the right end of the steel anchor beam 6 are respectively welded with the left end and the right end of the inner side wall of the inner steel pipe 2 at the corresponding positions.
The construction method of the double-wall concrete-filled steel tube bridge tower structure comprises the following steps:
(1) firstly, manufacturing double-wall steel pipe segments according to design requirements in a factory, for example, manufacturing the double-wall steel pipe segments in the factory according to 5m segments, wherein the lengths of the segments are determined according to transportation and on-site hoisting requirements, the section forms can be selected according to specific conditions, then, the double-wall steel pipe segments are subjected to sand blasting treatment to prevent rust, then, anticorrosive materials are sprayed, the steel pipe segments can leave the factory after being qualified through inspection, and a plurality of prefabricated double-wall steel pipe segments are conveyed to a construction site according to local traffic conditions;
(2) firstly, constructing the part of the bridge tower in water in a construction site, carrying out water-resisting treatment by using a double-wall steel cofferdam, and dismantling the double-wall steel cofferdam after the construction of the part of the bridge tower in water is finished;
(3) constructing the bridge tower part exposed in the air by adopting a double-wall steel pipe concrete mode, sequentially connecting different double-wall steel pipe sections in a hoisting mode on a construction site, namely connecting the top end of the lower double-wall steel pipe section with the bottom end of the upper adjacent double-wall steel pipe section by adopting a flange plate, then welding, checking and correcting, ensuring the connection tightness and the connection inosculation, forming a steel pipe tower column section with a certain height after assembling a plurality of double-wall steel pipe sections, then pouring concrete in a gap between the outer side wall of an inner steel pipe 2 and the inner side wall of an outer steel pipe 1 of the steel pipe tower column section to form the double-wall steel pipe concrete bridge tower section, assembling and fixedly connecting the double-wall steel pipe sections at the upper end of the lower double-wall steel pipe tower section, and assembling the upper double-wall steel pipe sections to form the steel pipe tower section, then, pouring concrete in a gap between the outer side wall of the inner steel tube 2 and the inner side wall of the outer steel tube 1 of the upper steel tube tower section to form an upper double-wall steel tube concrete bridge tower section, and repeating the steps to form a plurality of double-wall steel tube concrete bridge tower sections which are fixedly connected up and down in sequence, wherein the plurality of double-wall steel tube concrete bridge tower sections are spliced to form a double-wall steel tube concrete bridge tower, and the double-wall steel tube concrete bridge tower forms a bridge tower part exposed in the air;
(4) when the bridge tower is constructed to the arrangement position of the stay cable 7, special treatment needs to be carried out on the double-wall steel tube concrete bridge tower segment, namely the left bracket 4 and the right bracket 5 are symmetrically welded at the left end and the right end of the inner side wall of the inner steel tube 2 at the position where the stay cable 7 needs to be arranged on the double-wall steel tube concrete bridge tower, the horizontal steel anchor beam 6 is anchored at the upper ends of the left bracket 4 and the right bracket 5 and is used for connecting the stay cable 7 and the bridge tower, namely the upper parts of the stay cables 7 at the left side and the right side respectively penetrate through the stay cable reserved holes of the left side wall and the right side wall of the inner steel tube 2 at the corresponding positions, and the upper parts of the stay cables 7 at the left side and the right side are respectively anchored in;
(5) and finally, completing the construction of the whole bridge tower structure according to a conventional process.
Before construction, the structural analysis of the double-wall concrete-filled steel tube bridge tower can be carried out according to design parameters such as bridge span, load grade and bridge deck width, the section size of the bridge tower, the parameters of steel plates and the concrete strength are calculated and determined, and the materials and the positions of the left bracket 4, the right bracket 5 and the steel anchor beam 6 are determined according to the tension of the stay cable 7.
Claims (7)
1. The utility model provides a double-walled concrete-filled steel tube bridge tower structure which characterized in that: the steel tube comprises a plurality of same and prefabricated double-wall steel tube segments, wherein each double-wall steel tube segment comprises a vertical outer steel tube, a vertical inner steel tube is arranged in the middle of the inner part of the outer steel tube, the vertical heights of the inner steel tube and the outer steel tube are equal, the top end of the inner steel tube and the top end of the outer steel tube are at the same horizontal height, the bottom end of the inner steel tube and the bottom end of the outer steel tube are at the same horizontal height, and a plurality of same angle steels are fixedly connected between the outer side wall of the inner steel tube and the; the top end of the lower double-wall steel pipe segment is fixedly connected with the bottom end of the upper adjacent double-wall steel pipe segment, a plurality of double-wall steel pipe segments are assembled to form a steel pipe tower segment, concrete is poured into a gap between the inner steel pipe outer side wall and the outer steel pipe inner side wall of the steel pipe tower segment to form a double-wall steel pipe concrete bridge tower segment, the upper end of the lower double-wall steel pipe concrete bridge tower segment is assembled to fixedly connect the double-wall steel pipe segments, a plurality of upper double-wall steel pipe segments are assembled to form an upper steel pipe tower segment, concrete is poured into a gap between the inner steel pipe outer side wall and the outer steel pipe inner side wall of the upper steel pipe tower segment to form an upper double-wall steel pipe concrete bridge tower segment, and the rest on the principle is that a plurality of double-wall steel pipe concrete bridge tower segments fixedly connected from top to bottom are sequentially formed, a plurality of double-wall steel pipe concrete, the double-wall steel tube concrete bridge tower forms a bridge tower part exposed in the air, left and right brackets are symmetrically fixed at the left and right ends of the inner steel tube inner side wall of the position of the stay cable to be arranged on the double-wall steel tube concrete bridge tower, horizontal steel anchor beams are fixed at the upper ends of the left and right brackets, the upper parts of the stay cables on the left and right sides penetrate through the left and right side walls of the inner steel tube at the corresponding position respectively, and the upper parts of the stay cables on the left and right sides are anchored in the left and right parts of the steel anchor beams respectively.
2. A double-walled concrete-filled steel tube bridge tower structure according to claim 1, wherein: the angle steel is the equilateral angle steel, the equal vertical arrangement of each angle steel, the vertical length of each angle steel equals the vertical height of outer steel pipe, each angle steel top is in same level with outer steel pipe top, each angle steel is kept away from two perpendicular limits of right angle and is supported respectively and lean on in outer steel pipe inside wall relevant position department, and each angle steel is kept away from two perpendicular limits of right angle and is supported respectively with outer steel pipe inside wall relevant position welded connection, the right angle perpendicular limit of each angle steel supports and leans on in interior steel pipe outside wall relevant position department, and the right angle of each steel pipe is erected limit and interior steel pipe outside wall relevant position welded connection, and adjacent angle steel is kept away from the adjacent perpendicular limit of right angle.
3. A double-walled concrete-filled steel tube bridge tower structure according to claim 1, wherein: the top end of the lower side double-wall steel pipe segment and the bottom end of the upper side adjacent double-wall steel pipe segment are connected through a flange plate and then are welded.
4. A double-walled concrete-filled steel tube bridge tower structure according to claim 1, wherein: the top end of the lower double-wall steel pipe concrete bridge tower segment and the bottom end of the upper adjacent double-wall steel pipe segment are connected through a flange plate and then are welded.
5. A double-walled concrete-filled steel tube bridge tower structure according to claim 1, wherein: the left bracket and the right bracket are respectively connected with the left end and the right end of the inner side wall of the inner steel pipe at corresponding positions in a welding mode.
6. A double-walled concrete-filled steel tube bridge tower structure according to claim 1, wherein: the steel anchor beam is horizontally placed on the upper end faces of the left bracket and the right bracket, the left part of the steel anchor beam is fixedly connected with the left bracket through high-strength bolts or is welded with the left bracket, and the right part of the steel anchor beam is fixedly connected with the right bracket through high-strength bolts or is welded with the right bracket.
7. A double-walled concrete-filled steel tube bridge tower structure according to claim 1 or 6, wherein: the left end and the right end of the steel anchor beam are respectively welded with the left end and the right end of the inner side wall of the inner steel pipe at corresponding positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921844916.XU CN211036701U (en) | 2019-10-30 | 2019-10-30 | Double-wall concrete-filled steel tube bridge tower structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921844916.XU CN211036701U (en) | 2019-10-30 | 2019-10-30 | Double-wall concrete-filled steel tube bridge tower structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211036701U true CN211036701U (en) | 2020-07-17 |
Family
ID=71543094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921844916.XU Expired - Fee Related CN211036701U (en) | 2019-10-30 | 2019-10-30 | Double-wall concrete-filled steel tube bridge tower structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211036701U (en) |
-
2019
- 2019-10-30 CN CN201921844916.XU patent/CN211036701U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103850363B (en) | Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall | |
| CN110004832B (en) | Large-span cantilever truss type bent cap bracket system and construction method | |
| CN112502714B (en) | Assembled shaft barrel structure and design and construction method | |
| CN115467421B (en) | Hoisting construction method for complex large-span steel roof | |
| CN111472530A (en) | Flower basket pull rod I-shaped steel cantilever bearing frame for constructional engineering and mounting method thereof | |
| CN203769116U (en) | Prefabricated through hole assembly type reinforced concrete shear wall | |
| CN108729544B (en) | Dry-and wet-type composite joint pin-connected panel construction | |
| CN113914223A (en) | High-pier arc-shaped upper cross beam light-weight bracket system and mounting method thereof | |
| CN111749364B (en) | Assembled composite wall based on C-shaped steel and construction method thereof | |
| CN212336672U (en) | I-steel overhanging bearing frame of basket pull rod for constructional engineering | |
| CN112376776A (en) | Assembled roof with partially-wrapped composite beam and construction method thereof | |
| CN210066504U (en) | Large-span cantilever truss type bent cap support system | |
| CN211036701U (en) | Double-wall concrete-filled steel tube bridge tower structure | |
| CN217299956U (en) | Hollow floor supporting mechanism | |
| CN216920677U (en) | First-layer supporting structure of large rockery outer package | |
| CN106032705A (en) | Integrated casting molding construction method of reinforced concrete floor system | |
| CN108930406A (en) | Construction method for large-formwork narrow-space wall based on integral assembly | |
| CN211171582U (en) | Steel pipe-steel box combined truss type cover beam | |
| CN211646957U (en) | Assembled house ground reinforcing plate structure | |
| CN104453013A (en) | Prefabricated wall component and fabricated reinforced concrete shear wall | |
| CN108797350B (en) | Tower column inner and outer stiff skeleton device and construction method thereof | |
| CN108978860B (en) | Steel pipe concrete column-steel pipe concrete beam node connection structure | |
| CN112502160A (en) | Post-tensioning precast concrete supporting member, inner supporting system and construction method | |
| CN215483961U (en) | Assembled roof with partially-wrapped composite beam | |
| CN115162275B (en) | Construction method for embedded part of integral all-steel floating type dolphin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20211030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |