CN103266556B - Shock insulation rubber support - Google Patents
Shock insulation rubber support Download PDFInfo
- Publication number
- CN103266556B CN103266556B CN201310195409.9A CN201310195409A CN103266556B CN 103266556 B CN103266556 B CN 103266556B CN 201310195409 A CN201310195409 A CN 201310195409A CN 103266556 B CN103266556 B CN 103266556B
- Authority
- CN
- China
- Prior art keywords
- plate
- top board
- lead rod
- shock insulation
- base plate
- 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
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a shock insulation rubber support which comprises a base plate (1) and a top plate (2). A rubber pad (3), a middle steel linear plate (4), a polyfluortetraethylene plate (5) and a stainless steel sliding plate (6) are arranged between the base plate (1) and the top plate (2). The base plate (1) and the top plate (2) are connected through horizontal lead rods (702). The top plate (2) is connected with the middle steel linear plate (4) through vertical lead rods (701). Reset springs (9) are further arranged between the middle steel linear plate (4) and the top plate (2). When vertical tensile force and transverse shear force are generated under the action of earthquake, the horizontal lead rods between the base plate and the top plate can offset the vertical tensile force and part of the transverse shear force on the basis of maintaining integrality of the support to limit the vertical displacement. The vertical lead rods arranged between the top plate and the middle steel linear plate can offset part of the shear force and can reduce influence of vibration on a bridge on the upper portion of the support due to the fact that shearing deformation of the lead rods need to consume energy.
Description
Technical field
The present invention relates to a kind of bridge pad, be specifically related to a kind of benzvalene form shock insulation rubber bearing realizing tension, shearing resistance power consumption and Self-resetting function.
Background technology
In bridge construction, the horizontal movement produced for adaptive temperature change etc. and corner, shock attenuation needs, need erection support to carry out the horizontal force that pressure-bearing and transfer beams transmit.Presently used pot bearing comprises top board, middle steel liner plate, pressure-bearing rubber tile and base plate, is provided with the friction pair that stainless steel slide plate or antifriction plate and tetrafluoro slide plate are formed between top board and middle steel liner plate.This pot rubber bearing, in use can only bear horizontal force and pressure, can not to the pulling force generation effect of vertical direction.May occur to jump beam when geological process, fall beam or the frame that falls.Consumed energy DeGrain is carried out by means of only the distortion of rubber pad in earthquake.Can not realize after shake reset or the reset cycle long.
Summary of the invention
In order to make up the defect of prior art, patent of the present invention provides a kind of benzvalene form shock insulation rubber bearing with tension, shearing resistance power consumption and Self-resetting function, can to vertical tension and horizontal shear force generation effect under geological process, restriction vertical displacement, effectively prevent jumping beam, fall beam or the frame that falls, utilize the feature that the energy-dissipating property of lead rod is superior simultaneously, reduce the dynamic effect of earthquake motion to top beam body, the reset after back-moving spring then can solve bearing shake is difficult and reset is slow waits Self-resetting problem.This patent of invention has obvious practical value.
In order to realize above-mentioned technical purpose, the technical scheme of patent of the present invention is, the present invention is a kind of shock insulation rubber bearing, comprise base plate and top board, rubber pad, middle steel liner plate, polyfluortetraethylene plate and stainless steel slide plate is provided with between base plate and top board, be connected by horizontal lead rod between base plate with top board, be connected by vertical lead rod between top board with middle steel liner plate, between middle steel liner plate and top board, be also provided with back-moving spring.
The present invention is also, top board is the annular peviform structure of opening down setting.
The present invention is also, base plate is the annular peviform structure of the outer toss of band annular of opening up setting.
The present invention is also, the basin opening of base plate can extend in the basin opening of top board.
The present invention is also, rubber pad, middle steel liner plate, polyfluortetraethylene plate and stainless steel slide plate are arranged from below to up successively.
The present invention is also, rubber pad covers at the bottom of the basin of base plate completely.
The present invention is also, the position that rubber pad edge contacts with middle steel liner plate is provided with sealing ring.
The present invention is also, middle steel liner plate is the cylindrical structure on the annular limit of encorbelmenting of upper bands, and encorbelment between limit and the tub wall of top board and be connected by back-moving spring, the top of middle steel liner plate is connected by vertical lead rod with top board.
The present invention is also, horizontal lead rod and/or vertical lead rod are wrapped with rubber sleeve.
The present invention is also, base plate and/or top board are provided with bolt hole.
The present invention is also, vertical lead rod, horizontal lead rod and the upper and lower correspondence of back-moving spring are arranged in groups, and corresponding vertical lead rod, horizontal lead rod and back-moving spring in groups is equidistantly arranged along bearing axis hoop.
Patent beneficial effect of the present invention is:
Connected by the lead rod arranged between top board and base plate, between top board and middle steel liner plate, bearing is connected thus vertical tension and horizontal shear force can be resisted, and utilize lead rod distortion absorption energy to reach energy-dissipating and shock-absorbing effect, back-moving spring then achieves good reset capability and auxiliary energy-dissipating property, avoids earthquake centre and shakes rear support reset difficulty and the slow problem that resets; In addition, patent of the present invention also has batch production and makes the advantages such as simple and in-site installation convenience, has obvious practical value and economic benefit.
When producing vertical tension and cross shear under geological process, the horizontal lead rod between base plate and top board on the basis keeping bearing globality, can offset vertical tension and parts transversely shearing force, thus restriction vertical displacement; Vertical lead rod between top board and middle steel liner plate then can offset partial shear, because the shear strain of lead rod requires the expenditure of energy, thus the impact of earthquake motion on holder top bridge can be reduced, solve the poor-performing that existing bearing bears pulling force, be not suitable for the shortcoming applied in the bridge in use having uplift force to exist, the back-moving spring be arranged between top board and middle steel liner plate then can solve the Self-resetting problem after bearing shake.
Below in conjunction with accompanying drawing, patent of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of benzvalene form shock insulation rubber bearing with tension, shearing resistance power consumption and Self-resetting function of the embodiment of the present invention;
Fig. 2 is the sectional view of A-A in Fig. 1;
Fig. 3 is the sectional view of B-B in Fig. 1;
Wherein 1 is base plate, and 2 is top board, and 3 is rubber pad, and 4 is middle steel liner plate, and 5 is polyfluortetraethylene plate, and 6 is stainless steel slide plate, 701 be vertical lead rod, 702 for horizontal lead rod, 8 is rubber sleeve, and 9 is back-moving spring, and 10 is sealing ring, and 11 is bolt hole.
Detailed description of the invention
Further illustrating below to patented technology content of the present invention, but the restriction not to patent flesh and blood of the present invention.
Fig. 1 is the schematic diagram of pot rubber bearing with tension, shearing resistance power consumption and Self-resetting function of the embodiment of the present invention; Fig. 2 is the sectional view of A-A in Fig. 1; Fig. 3 is the sectional view of B-B in Fig. 1; As shown in Figure 1, 2, 3, there is the benzvalene form shock insulation rubber bearing of tension, shearing resistance power consumption and Self-resetting function, comprise base plate 1 and top board 2, rubber pad 3, middle steel liner plate 4, polyfluortetraethylene plate 5 and stainless steel slide plate 6 is provided with between base plate 1 and top board 2, be connected by horizontal lead rod 702 between base plate 1 with top board 2, be connected by vertical lead rod 701 between top board 2 with middle steel liner plate 4, between middle steel liner plate 4 and top board 2, be also provided with back-moving spring 9.Top board 2 is the annular peviform structure of opening down setting.Base plate 1 is the annular peviform structure of the outer toss of band annular of opening up setting.The basin opening of base plate 1 can extend in the basin opening of top board 2.Rubber pad 3, middle steel liner plate 4, polyfluortetraethylene plate 5 and stainless steel slide plate 6 are arranged from below to up successively.Rubber pad 3 covers at the bottom of the basin of base plate 1 completely.The position that rubber pad 3 edge contacts with middle steel liner plate 4 is provided with sealing ring 10.Middle steel liner plate 4 is the cylindrical structure on the annular limit of encorbelmenting of upper bands, and encorbelment between limit and the tub wall of top board 2 and be connected by back-moving spring 9, the top of middle steel liner plate 4 is connected by vertical lead rod 701 with top board 2.Horizontal lead rod 702 and/or vertical lead rod 701 are wrapped with rubber sleeve 8.Base plate 1 and/or top board 2 are provided with bolt hole 11.Vertical lead rod 701, horizontal lead rod 702 and back-moving spring about 9 correspondence are arranged in groups, and corresponding vertical lead rod 701, horizontal lead rod 702 and back-moving spring 9 in groups is equidistantly arranged along bearing axis hoop.
When producing vertical tension and cross shear under geological process, the horizontal lead rod 702 between base plate 1 and top board 2 on the basis keeping bearing globality, can offset vertical tension and parts transversely shearing force, thus restriction vertical displacement; Vertical lead rod 701 between top board 2 and middle steel liner plate 4 then can offset partial shear, because the shear strain of lead rod requires the expenditure of energy, thus the impact of earthquake motion on holder top bridge can be reduced, solve the poor-performing that existing bearing bears pulling force, be not suitable for the shortcoming applied in the bridge in use having uplift force to exist, the back-moving spring 9 be arranged between top board 2 and middle steel liner plate 4 then can solve the Self-resetting problem after bearing shake.
Neoprene bearing is one-way support, and its principal direction is longitudinally arranged along bridge.
Is formed be connected by horizontal lead rod 702 between base plate 1 with top board 2, under geological process, level is not to retraining, vertically can limiting displacement and lead rod shear energy dissipation, thus realizes tension and consume energy; Middle steel liner plate 4 is connected with horizontal reset spring 9 by vertical lead rod 701 with top board 2, and under horizontal earthquake action, lead rod shearing resistance is consumed energy, and back-moving spring 9 provides reset force, realizes the reset of shake rear support.
Lead rod rubber sleeve 8 wraps up, the deformation performance good due to rubber thus the level that can realize to not retraining, effect sealing can played again simultaneously and prevent lead poisoning from leaking.
The thickness of rubber sleeve 8 can change flexibly according to the difference of lead rod shear strain size, successively increases counterclockwise along bearing principal direction.
The rigidity of back-moving spring 9 is determined by calculating, requires that it does not limit bearing horizontal distortion again while realizing Self-resetting, and namely under geological process, top board 2 and middle steel plate are not formed closely connected in advance.
Fixing welding between top board 2 and stainless steel slide plate 6.
The present invention is one-way support, and bearing is provided with principal direction, and horizontal movement is unrestricted in a main direction, therefore bearing principal direction longitudinally should be arranged along bridge.Middle steel liner plate 4 by pressure-bearing rubber pad 3 together build-in in base plate 1, the upper end of middle steel liner plate 4 is provided with circular groove for placing polyfluortetraethylene plate 5, polyfluortetraethylene plate 5 and stainless steel slide plate 6 form friction pair, and stainless steel slide plate 6 and the fixing welding of top board 2, base plate 1, top board 2 all adopt stay bolt to be connected with bridge pier, beam body respectively.Bearing carries out pressure-bearing and rotation by pressure-bearing rubber tile, adapts to the displacement request of bridge with the friction pair that polyfluortetraethylene plate 5 and corrosion resistant plate are formed.Set up in base plate 1 and top board 2, lead rod between top board 2 and middle steel liner plate 4, when earthquake produces vertical tension and cross shear, horizontal lead rod 702 limits the relative displacement between base plate 1 and top board 2, produce pulling force, whole bearing is made to keep vertical tension is offset by complete basis, and the vertical lead rod 701 between top board 2 and middle steel liner plate 4 can offset cross shear, the power consumption of lead rod distortion simultaneously can reduce the dynamic effect of earthquake motion to top beam body, set up the horizontal reset spring 9 between middle steel liner plate 4 and top board 2, then can provide horizontal reset power, solve the problem that reset is difficult and reset is slow after bearing earthquake centre or shake.Have tension, each position of pot rubber bearing of shearing resistance power consumption and Self-resetting function adopts welding procedure, produce in factory is shaping, and on-the-spot splicing is installed.The wherein size of lead rod, the rigidity of back-moving spring 9 should be determined according to practical engineering calculation.Lead rod rubber sleeve 8 wraps up, the deformation performance good due to rubber thus the level that can realize to not retraining, effect sealing can played again simultaneously and prevent lead poisoning from leaking.The thickness of rubber sleeve 8 can change flexibly according to the difference of lead rod shear strain size, successively increases counterclockwise along bearing principal direction.Back-moving spring 9 requires that it does not limit bearing horizontal distortion again while realizing Self-resetting, and namely under geological process, top board 2 and middle steel plate are not formed closely connected in advance.
The present invention is a kind of benzvalene form shock insulation rubber bearing with tension, shearing resistance power consumption and Self-resetting function, and Fig. 1 is the schematic diagram of pot rubber bearing with tension, shearing resistance power consumption and Self-resetting function of the embodiment of the present invention, as shown in Figure 1.First force analysis is carried out to structure, determine the stress deformation size of bearing, thus select suitable lead rod size and back-moving spring 9 rigidity, the size of lead rod should at least guarantee to offset the maximum vertical pulling force that structure produces under design seismic intensity, the initial precompression of spring or pretension should exceed the maximal friction of the friction pair that polyfluortetraethylene plate 5 and stainless steel slide plate 6 are formed under integral pressure, guarantee that neoprene bearing can Self-resetting under earthquake or other load actions.Base plate 1 and top board 2 adopt size 1.5m × 1.5m, the HRB335 steel plate of thick 5cm, the connecting portion of base plate 1 and top board 2 adopts the firm cylinder of the HRB335 of thick 8cm and 5cm respectively, polyfluortetraethylene plate 5 adopts the circular slab of thick 4cm radius 40cm, stainless steel slide plate 6 adopts the HRB335 steel plate of thick 2cm radius 50cm, the thick 10cm of pressure-bearing rubber pad 3.
There is the preparation method of pot rubber bearing of tension, shearing resistance power consumption and Self-resetting function:
1, top board 2 and stainless steel slide plate 6 are welded into an entirety;
2, in top board 2, insert vertical lead rod 701, polyfluortetraethylene plate 5 is placed in top board 2 together with middle steel liner plate 4;
3, between top board 2 and middle steel liner plate 4, weld back-moving spring 9, note the control of initial precompression or pretension;
4, pressure-bearing rubber pad 3 is arranged in base plate 1, completes sealing ring 10 simultaneously;
5, the overall superstructure that the 3rd step is welded is placed in the base arrangement of the 4th step;
6, the horizontal lead rod 702 wrapped up with rubber sleeve 8 is assigned in duct reserved between base plate 1 and top board 2, bearing assembling is complete.
Claims (11)
1. a shock insulation rubber bearing, it is characterized in that, comprise base plate (1) and top board (2), rubber pad (3), middle steel liner plate (4), polyfluortetraethylene plate (5) and stainless steel slide plate (6) is provided with between base plate (1) and top board (2), be connected by horizontal lead rod (702) between base plate (1) with top board (2), be connected by vertical lead rod (701) between top board (2) with middle steel liner plate (4), between middle steel liner plate (4) and top board (2), be also provided with back-moving spring (9).
2. shock insulation rubber bearing according to claim 1, is characterized in that, the annular peviform structure that top board (2) is opening down setting.
3. shock insulation rubber bearing according to claim 2, is characterized in that, the annular peviform structure of the outer toss of the band annular that base plate (1) is opening up setting.
4. shock insulation rubber bearing according to claim 3, is characterized in that, the basin opening of base plate (1) can extend in the basin opening of top board (2).
5. shock insulation rubber bearing according to claim 4, is characterized in that, rubber pad (3), middle steel liner plate (4), polyfluortetraethylene plate (5) and stainless steel slide plate (6) are arranged from below to up successively.
6. shock insulation rubber bearing according to claim 5, is characterized in that, rubber pad (3) covers at the bottom of the basin of base plate (1) completely.
7. shock insulation rubber bearing according to claim 6, is characterized in that, the position that rubber pad (3) edge contacts with middle steel liner plate (4) is provided with sealing ring (10).
8. shock insulation rubber bearing according to claim 6, it is characterized in that, middle steel liner plate (4) is the cylindrical structure on the annular limit of encorbelmenting of upper bands, encorbelment between limit and the tub wall of top board (2) and be connected by back-moving spring (9), the top of middle steel liner plate (4) is connected by vertical lead rod (701) with top board (2).
9. shock insulation rubber bearing according to any one of claim 1 to 8, is characterized in that, horizontal lead rod (702) and/or vertical lead rod (701) are wrapped with rubber sleeve (8).
10. shock insulation rubber bearing according to any one of claim 1 to 8, is characterized in that, base plate (1) and/or top board (2) are provided with bolt hole (11).
11. shock insulation rubber bearings according to any one of claim 1 to 8, it is characterized in that, vertical lead rod (701), horizontal lead rod (702) and back-moving spring (9) up and down correspondence are arranged in groups, and corresponding vertical lead rod (701), horizontal lead rod (702) and back-moving spring (9) in groups is equidistantly arranged along bearing axis hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310195409.9A CN103266556B (en) | 2013-05-23 | 2013-05-23 | Shock insulation rubber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310195409.9A CN103266556B (en) | 2013-05-23 | 2013-05-23 | Shock insulation rubber support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103266556A CN103266556A (en) | 2013-08-28 |
| CN103266556B true CN103266556B (en) | 2015-04-15 |
Family
ID=49010210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310195409.9A Expired - Fee Related CN103266556B (en) | 2013-05-23 | 2013-05-23 | Shock insulation rubber support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103266556B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741799A (en) * | 2014-01-21 | 2014-04-23 | 王洪森 | Anti-seismic structure device |
| CN104612041B (en) * | 2015-01-30 | 2016-07-06 | 北京铁科首钢轨道技术股份有限公司 | A kind of grease is from supplementing slide plate body means for mounting coupling parts |
| CN105621021B (en) * | 2016-03-15 | 2018-02-13 | 中煤邯郸设计工程有限责任公司 | Trestle bearing |
| CN107794838A (en) * | 2017-10-12 | 2018-03-13 | 株洲时代新材料科技股份有限公司 | Drawing-resisting device for bridge pad |
| CN108330820B (en) * | 2018-04-09 | 2024-03-29 | 石家庄铁道大学 | Self-resetting friction damping device for continuous beam bridge |
| CN109024252B (en) * | 2018-06-28 | 2021-04-06 | 台州中知英健机械自动化有限公司 | Bridge anti-seismic support |
| CN108867883A (en) * | 2018-07-27 | 2018-11-23 | 佛山科学技术学院 | A kind of three-dimensional isolation structure of bilayer shock insulation |
| CN110468696A (en) * | 2019-09-03 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | A kind of bridle iron with runback bit function |
| CN113062648B (en) * | 2021-03-30 | 2022-09-16 | 中国建筑西北设计研究院有限公司 | Circumferential tensile limiting self-resetting shock insulation support and design method |
| CN113774785A (en) * | 2021-11-02 | 2021-12-10 | 许昌学院 | Bridge subtracts isolation bearing |
| CN114033052B (en) * | 2021-12-03 | 2023-02-03 | 广东博竣建设工程有限公司 | House upper laminated rubber shock insulation structure and construction process |
| CN114016635B (en) * | 2021-12-10 | 2022-05-27 | 广州大学 | Modularized layer parallel three-dimensional shock isolation/vibration isolation support for vibration and vibration double control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065140A (en) * | 1998-08-24 | 2000-03-03 | Nitta Ind Corp | Base isolation material |
| JP2008014057A (en) * | 2006-07-07 | 2008-01-24 | Nitta Ind Corp | Horizontal support device |
| CN101761029A (en) * | 2009-12-11 | 2010-06-30 | 招商局重庆交通科研设计院有限公司 | Sliding lead-core shock absorption and insulation rubber support for bridge |
| CN201962801U (en) * | 2011-01-14 | 2011-09-07 | 东南大学 | Shock-reducing and isolating rubber support of steel-lead combined core |
| CN202626827U (en) * | 2012-05-24 | 2012-12-26 | 武汉臣基工程科技有限公司 | Shock-absorbing rubber supporting base capable of supplying bigger displacement |
| CN203320403U (en) * | 2013-05-23 | 2013-12-04 | 中南大学 | Shock insulation rubber support |
-
2013
- 2013-05-23 CN CN201310195409.9A patent/CN103266556B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000065140A (en) * | 1998-08-24 | 2000-03-03 | Nitta Ind Corp | Base isolation material |
| JP2008014057A (en) * | 2006-07-07 | 2008-01-24 | Nitta Ind Corp | Horizontal support device |
| CN101761029A (en) * | 2009-12-11 | 2010-06-30 | 招商局重庆交通科研设计院有限公司 | Sliding lead-core shock absorption and insulation rubber support for bridge |
| CN201962801U (en) * | 2011-01-14 | 2011-09-07 | 东南大学 | Shock-reducing and isolating rubber support of steel-lead combined core |
| CN202626827U (en) * | 2012-05-24 | 2012-12-26 | 武汉臣基工程科技有限公司 | Shock-absorbing rubber supporting base capable of supplying bigger displacement |
| CN203320403U (en) * | 2013-05-23 | 2013-12-04 | 中南大学 | Shock insulation rubber support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103266556A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103266556B (en) | Shock insulation rubber support | |
| CN109853779B (en) | Full-swing structure system containing swing column and swing wall and construction method thereof | |
| CN104831621A (en) | Guide rail type anti-drawing high-damping rubber shock insulation support | |
| CN102953327A (en) | Lateral shock absorption damper suitable for bridge structure | |
| CN101672004B (en) | Shape memory alloy lazy halyard vibration damper for suspension bridge | |
| CN201526010U (en) | Shape memory alloy vibration damping lazy halyard apparatus for suspension bridge | |
| CN103088906B (en) | Bearing type coal bucket shock adsorption structure for improving anti-seismic property of heat-engine plant main power house | |
| CN204551516U (en) | A kind of steam turbine generator spring vibration-isolated foundation | |
| CN203320403U (en) | Shock insulation rubber support | |
| CN203021906U (en) | X-shaped metal damping device applicable to bridge structures and provided with self-recovery force | |
| CN104878839A (en) | Irregular shape shock insulation support having high bearing capacity | |
| CN202047352U (en) | Shock-absorbing elastic-plastic damper for bridge | |
| CN101845856B (en) | Damping device placed in reinforced concrete member | |
| CN105649231A (en) | Tri-linear shape in-plane bending yielding type energy dissipater and manufacturing method therefor | |
| CN206256370U (en) | Firm arm speed lockup's vibration absorption and isolation support such as one kind | |
| CN203603044U (en) | Anti-seismic bridge bearing | |
| CN110847423A (en) | Shear wall structure with semi-steel connecting frame filled with reinforced concrete | |
| CN106702886B (en) | A kind of stiffness variable particle damping device suitable for bridge | |
| CN202390949U (en) | Bidirectional metal yielding energy consumption combined support | |
| CN206233090U (en) | Bridge vibration damping holder | |
| CN206529686U (en) | A kind of energy-dissipating and shock-absorbing bridge pad | |
| CN105544760A (en) | Suspension type coal bunker damping structure improving heat-engine plant main workshop antivibration performance | |
| CN205399192U (en) | One -way mobile support in grades combats earthquake on inclined plane | |
| CN104265005A (en) | Steel plate and steel bar combined beam top reinforced structure | |
| CN203160759U (en) | Bearing type coal bucket vibration damping structure for improving seismic performance of thermal power plant main workshop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150415 Termination date: 20170523 |