CN102926534A - Detachable building formwork for hollow floor slab and ribbed floor slab - Google Patents
Detachable building formwork for hollow floor slab and ribbed floor slab Download PDFInfo
- Publication number
- CN102926534A CN102926534A CN2012104865779A CN201210486577A CN102926534A CN 102926534 A CN102926534 A CN 102926534A CN 2012104865779 A CN2012104865779 A CN 2012104865779A CN 201210486577 A CN201210486577 A CN 201210486577A CN 102926534 A CN102926534 A CN 102926534A
- Authority
- CN
- China
- Prior art keywords
- template
- formwork
- floor slab
- plane
- cassette ceiling
- 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.)
- Granted
Links
Images
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a detachable building formwork for a hollow floor slab and a ribbed floor slab. The formwork comprises single side formworks (1), vertical columns (3) connected with the two adjacent single side formworks (1), and a top formwork (10), wherein location elements (4) are arranged at the inner sides of the junctions of the vertical columns (3) and the side formworks (1). Two adjacent mutually-vertical surfaces at the inner sides of the vertical columns (3) are cut and then form inwards-inclined oblique planes, and the included angle alpha between the two adjacent inwards-inclined oblique planes is an obtuse angle. By using the formwork for casting concrete, the hollow floor slab with a cavity formed by surrounding of a cast-in-situ concrete layer (18), cast-in-situ ribs (17) and the top formwork (10), and the cast-in-situ ribbed floor slab, can be obtained. The detachable formwork for the hollow floor slab and the ribbed floor slab is wide in applicability, simple in assembly procedures, convenient for form removal, free from grout leakage, convenient to obtain materials during formwork production, low in price, and saved in materials due to the fact that the side formworks (1) and the vertical columns (3) can be completely detached and repeatedly utilized; and moreover, the side formworks have an enough rigidity to resist the side pressure of concrete.
Description
Technical field
The present invention relates to the realm of building construction, specifically refer to a kind of detachable cassette ceiling for building and ribbed slab floor template.
Background technology
That ribbed slab floor has is applied widely, save constructional materials, cost is low, rigidity is large, anti-seismic performance is good, aesthetic in appearance, convenient and quick construction and reduce the advantages such as floor height and structural weight per square meter.Reinforced concrete cast-in-situ hollow floor plate also has the saving constructional materials, alleviates the superstructure deadweight, and building energy conservation is effective, and it is convenient to construct, and line layout is convenient, and heat insulating effect is good, is applicable to the plurality of advantages such as large span, volumed space building.
The ribbed slab floor template is plastics or the frp moulds of adopting now more, and cost is higher, and construction technology is comparatively loaded down with trivial details.Or adopt disposable formwork, also exist cost high, the problems such as transportation inconvenience and waste material.
A kind of hollow slab template for buildings (number of patent application 201010558067.9), this template is comprised of module, angle mould, bolt or latch, prefabricated panel, and its one side formwork is assembled by the polylith module, connects by angle mould between one side formwork.This construction formwork is assembly unit and dismounting flexibly, but the assembly unit operation is many, the assembly and disassembly trouble, and this template cost is relatively high.A kind of hollow slab template for buildings (number of patent application 201210281003.8), this cassette ceiling one side formwork is formed by lower side template and upper side template dislocation lap joint, the lower side template is inboard in the upper side template that overlaps with it, and hole or breach are arranged at lower side template bottom.This cassette ceiling template has solved the more existing problems of foregoing invention, but still has the following disadvantages: during concreting, and concrete squeeze side template, this exists certain difficulty and template to damage easily in the time of will causing the side template form removal; The template assembly operation is more loaded down with trivial details; Side template rigidity is relatively poor, and concrete lateral pressure easily makes the lower side template topple, and the phenomenon that the upper side template is separated with the lower side template occurs; The phenomenon of spillage appears in side template easily.
Summary of the invention
In view of this, the invention provides a kind of detachable cassette ceiling for building and ribbed slab floor template, this template has solved the existing shortcoming of above-mentioned template, the assembly unit operation is simple, form removal is convenient, not spillage, draw materials when making template conveniently, cheap, one side formwork and column can disassemble recycling, economical with materials fully; And this side template has enough rigidity to resist concrete lateral pressure.
To achieve these goals, the present invention adopts following technical scheme: a kind of detachable cassette ceiling for building and ribbed slab floor template, column, top template that this template comprises one side formwork, joins with adjacent two one side formworks, the inboard of described column and side template joint is provided with keeper.
Further in technical scheme of the present invention, the inboard adjacent two mutually perpendicular planes of described column forms lean-in inclined-plane after cutting, and two adjacent introversion inclined-plane angle α are the obtuse angle; Column and side template joint are provided with plastic pipe or rubber strip; There is upper side panel described one side formwork upper end; The inclined-plane that cuts is arranged on the described one side formwork medial surface or cushion block with the inclined-plane is arranged, the inclined-plane tilts laterally, on the inclined-plane or there is the cushion block place with the inclined-plane to be provided with cross binding; On the described one side formwork medial surface ribs is arranged; Described one side formwork bottom is provided with hole or breach, is interspersed with brace rod in hole or the breach, and corresponding top template bottom is provided with groove; Described one side formwork bottom is interior convex template, and corresponding top template bottom is provided with breach.
Can find out that from technique scheme cassette ceiling and ribbed slab floor template side template reach the column that joins with one side formwork by four one side formworks and form, keeper is established in the inboard of column and side template joint.As seen, this side template formation is simple, assembly unit is convenient.Wherein, the purpose that arranges of keeper is: when side template was subject to concrete lateral pressure, keeper can not only retrain the horizontal direction displacement of medial side template, and the lateral pressure that can provide corresponding counter-force to be subject to opposing for side template; Keeper is contributed to some extent to the longitudinal rigidity of side template; Simultaneously, keeper also plays the effect of certain mortar leakage prevention.
The purpose that the inboard two adjacent surfaces of column is set to introversion face is: can make jam-packed between each member of template after the concreting, in the time of so can making form removal, one side formwork, column inconvenience are taken out.Inboard adjacent surface is made as interior inclined plane, has namely solved above problem, very convenient when one side formwork is dismantled to translation.Perhaps, establish plastic pipe or rubber strip at column and side template joint, can make jam-packed between each member of template after the concreting, but because the interval of plastic pipe or rubber strip, so that there are certain interval in column and side template, this also can make form removal be convenient to carry out.
When template is built ribbed slab floor thus, after the concrete of building reaches some strength, remove support, remove keeper, column, one side formwork and top template, namely form needed ribbed slab floor.When template is built cassette ceiling thus, after the concrete of building reaches some strength, remove keeper, column, one side formwork and other associated components, the cassette ceiling cavity that obtains at last is comprised of cast-in-place close rib, top template, cast-in-situ concrete layer.
Cassette ceiling provided by the present invention and ribbed slab floor template side template disassemble and can reuse, as seen this template can be saved a large amount of constructional materialss, simultaneously, the dismounting of this template assembly is easy, working procedure is simple, its side template has larger longitudinal rigidity with the opposing concrete lateral pressure, by this template build the cassette ceiling of shaping or ribbed slab floor smooth attractive in appearance, rigidity is large, holistic resistant behavior is good.
Description of drawings
In the following drawings, 1 is one side formwork, and 2 is upper side panel, 3 is column, and 4 is keeper, and 5 is hole or the breach of one side formwork 1 bottom, 6 is convex template in one side formwork 1 bottom, and 7 is plastic pipe or rubber strip, and 8 is ribs, 9 is brace rod, 10 is top template, and 11 is the form removal hole on the top template 10, and 12 are the form removal bolt, 13 are provided with groove for top template 10 bottoms, 14 is the breach of top template 10 bottoms, and 15 for one side formwork 1 medial surface ramp or cushion block with the inclined-plane is arranged, and 16 is cross binding, 17 is cast-in-place close rib, 18 are the cast-in-situ concrete layer, and 19 is the girt strip reinforcing bar, and 20 is soffit formwork, 21 is mortar, and 22 is cast-in-place close rib lower boss.
Fig. 1 is one side formwork splicing structure schematic diagram;
Fig. 2 is another embodiment of one side formwork assembly unit;
Fig. 3 is another embodiment of one side formwork assembly unit;
Fig. 4 is unitary side formwork structure schematic diagram;
Fig. 5 is another embodiment of one side formwork assembly unit;
Fig. 6 is another embodiment of unitary side template;
Fig. 7 is another embodiment of unitary side template;
Fig. 8 is another embodiment of unitary side template;
Fig. 9 is another embodiment of unitary side template;
Figure 10 is cassette ceiling formwork structure schematic diagram;
Figure 11 is band groove top template structural representation;
Figure 12 is another embodiment of cassette ceiling template;
Figure 13 is band breach top template structural representation;
Figure 14 establishes the bracing structure schematic diagram in the unitary side template;
Figure 15 establishes another embodiment of cross binding in the unitary side template;
Figure 16 is the unitary side formwork structure schematic diagram of establishing ribs;
Figure 17 is the construction schematic diagram of cassette ceiling;
Figure 18 is the final cassette ceiling partial structurtes schematic diagram that forms;
Figure 19 is local another embodiment of the final cassette ceiling that forms;
Figure 20 is the construction schematic diagram of ribbed slab floor;
Figure 21 is the final ribbed slab floor partial structurtes schematic diagram that forms;
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is described further.
The present invention is shown in accompanying drawing 1～21.
Figure 1 shows that one side formwork 1 assembly unit schematic diagram, this cassette ceiling one side formwork 1 vertically is spliced by the hard plate more than.One side formwork 1 end and column 3 join, and establish keeper 4 in column 3 and the inboard of side template 1 joint, as shown in Figure 2.Keeper 4 has retrained the horizontal direction displacement of side template 1, and the concrete lateral pressure that provides corresponding counter-force to be subject to opposing for side template 1, simultaneously, keeper 4 has guaranteed the longitudinal rigidity of side template, the spillage phenomenon of also having avoided side template 1 and column 3 joints to exist.
In addition, as shown in Figure 1, column 3 inboard adjacent two mutually perpendicular planes form lean-in face after cutting, and two adjacent introversion face angle α are the obtuse angle.This arranges purpose and is, can make jam-packed between each member of template after the concreting, and this can make form removal have certain difficulty, therefore column 3 inboard two adjacent surfaces is made as the inclined-plane, and is very convenient when then laterally translation of one side formwork 1 is dismantled.
Figure 2 shows that column and side template joint establish the one side formwork 1 assembly unit schematic diagram of plastic pipe 7 or rubber strip, establish plastic pipe 7 or rubber strip in column 3 and one side formwork 1 joint, can make jam-packed between each member of template after the concreting, but because the interval of plastic pipe 7 or rubber strip, so that there is certain interval in column 3 with side template, this is so that pull down easily removing keeper 4 rear one side formworks 1.
Shown in Fig. 3 ~ 6, there is upper side panel 2 one side formwork 1 upper end.Upper side panel 2 be located at one side formwork 1 directly over vertically join with one side formwork 1, or upper side panel 2 is located at the upper end outside of one side formwork 1.Be convenient to like this location and the placement of top template 10, the phenomenon of spillage when also having avoided concreting.
Fig. 7,8 is depicted as the unitary side template.Cassette ceiling one side formwork 1 bottom is provided with hole or breach 5, and hole or breach 5 are used for interspersed brace rod 9, as shown in figure 10.One end of brace rod 9 is anchored in the concrete of cast-in-place close rib 17, and the other end is used for supporting the top template 10 that sinks down into the bottom.When one side formwork 1 bottom is provided with hole or breach 5 when interting brace rod 9, corresponding top template 10 bottoms are provided with groove 13, as shown in figure 11, the position of groove 13 is corresponding one by one with the position of brace rod 9, thereby brace rod 9 provides reliable support for top template 10, simultaneously, the existence of brace rod 9 can guarantee the globality of cassette ceiling and improve its holistic resistant behavior.
As shown in Figure 9, the one side formwork bottom is interior convex template, after the concrete of having built reaches some strength, one side formwork 1 is pulled down, make cast-in-place close rib 17 bottoms form concrete boss 22, corresponding top template 10 bottoms are provided with breach 14 with it, as shown in figure 13, breach 14 and boss 22 just coincides, thus top template 10 is supported reliably, improve the holistic resistant behavior of cassette ceiling, as shown in figure 12.
Again, shown in Figure 10 ~ 13, the form removal bolt 12 that top template 10 plate bodies are established.Acting as of form removal bolt 12, served as the bed die of cast-in-situ concrete layer 18 at top template 10 after, after cast-in-situ concrete reaches some strength, turn the form removal bolt 12 in the form removal hole 11, withstand 15 pairs of top templates 10 of casting top slab and apply counter-force, top template 10 is separated with cast-in-situ concrete layer 18, top template 10 is placed on brace rod 9 or the boss 22, form cassette ceiling; Or with top template 10 dismountings, form ribbed slab floor.
Figure 14,15 is depicted as to be had the inclined-plane 15 that cuts or cushion block with the inclined-plane is arranged on the one side formwork medial surface.Described inclined-plane 15 tilts laterally, on the inclined-plane 15 or have the cushion block place with the inclined-plane to establish cross binding 16.So, can make cross binding 16 provide more firmly level to support, guarantee outside the plane of side template stable.Simultaneously, inclined-plane 15 or have with the cushion block on inclined-plane be arranged so that cross binding 16 demolition the time very convenient, only need cross binding 16 is upwards touched and can be taken out.
Figure 16 shows that on one side formwork 1 medial surface and be provided with ribs 8.When one side formwork 1 vertically was combined into by the hard plate more than, the vertical rigidity that ribs 8 can bonding side template 1 made one side formwork 1 can resist concrete lateral pressure.
Figure 17 is the construction schematic diagram of cassette ceiling.During construction, set up first the soffit formwork 20 of cassette ceiling, colligation girt strip reinforcing bar 19; Place side template 1 and column 3, set keeper 4 at column, be assembled into the unitary side template, at the good girt strip reinforcing bar 19 both sides holding integrated side templates of colligation; When hole 5 or breach are arranged at one side formwork 1 bottom, in hole 5 or breach, insert brace rod 9 or brace rod 9 and building behind the concrete and inserted in the concrete of cast-in-place close rib 17 by hole 5 or breach before the concrete ot-yet-hardened; Cloth cross binding 16 in the space that side template surrounds is placed on top template 10 on the column 3; Concreting after concrete reaches some strength, removes horizontal support 16, removes first keeper 4, removes one side formwork 1, column 3 again; Top template 10 is placed on the boss 22 of brace rod 9 or cast-in-place close rib bottom, cast-in-place close rib 17, top template 10, cast-in-situ concrete layer 18 form cavity, form the integral hollow floor at 10 times whitewash mortars of top template 21 again.Shown in Figure 18,19.
Figure 20 is the construction schematic diagram of ribbed slab floor.During construction, set up first the soffit formwork 20 of ribbed slab floor, colligation girt strip reinforcing bar 19; Place side template 1 and column 3, set keeper 4 at column, be assembled into the unitary side template, at the good girt strip reinforcing bar 19 both sides holding integrated side templates of colligation; Cloth cross binding 16 in the space that side template surrounds is placed on top template 10 on the column 3; Concreting after concrete reaches some strength, removes horizontal support 16, removes first keeper 4, removes one side formwork 1, column 3 again, and top template 10 is separated with cast-in-situ concrete layer 18, top template 10 is pulled down, thereby formed whole ribbed slab floor.As shown in figure 21.
Claims (8)
1. a detachable cassette ceiling for building and ribbed slab floor template, column (3), top template (10) that this template comprises one side formwork (1), joins with adjacent two one side formworks (1) the invention is characterized in: described column (3) is provided with keeper (4) with the inboard of side template (1) joint.
2. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template is characterized in that: the inboard adjacent two mutually perpendicular planes of described column (3) forms lean-in inclined-plane after cutting, two adjacent introversion inclined-plane angle α are the obtuse angle.
3. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template is characterized in that: column (3) is provided with plastic pipe (7) or rubber strip with side template (1) joint.
4. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template is characterized in that: upper side panel (2) is arranged on the described one side formwork (1).
5. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template, it is characterized in that: the inclined-plane (15) that cuts is arranged on described one side formwork (1) medial surface or cushion block with the inclined-plane is arranged, inclined-plane (15) tilts laterally, on the inclined-plane (15) or have the cushion block place with the inclined-plane to be provided with cross binding (16).
6. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template is characterized in that: on described one side formwork (1) medial surface ribs (8) is arranged.
7. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template, it is characterized in that: described one side formwork (1) bottom is provided with hole or breach (5), be interspersed with brace rod (9) in hole or the breach (5), corresponding top template (10) bottom is provided with groove (13).
8. detachable cassette ceiling for building according to claim 1 and ribbed slab floor template is characterized in that: described one side formwork (1) bottom is interior convex template (6), and corresponding top template (10) bottom is provided with breach (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486577.9A CN102926534B (en) | 2012-11-26 | 2012-11-26 | Detachable building formwork for hollow floor slab and ribbed floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486577.9A CN102926534B (en) | 2012-11-26 | 2012-11-26 | Detachable building formwork for hollow floor slab and ribbed floor slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926534A true CN102926534A (en) | 2013-02-13 |
| CN102926534B CN102926534B (en) | 2015-04-01 |
Family
ID=47641450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210486577.9A Expired - Fee Related CN102926534B (en) | 2012-11-26 | 2012-11-26 | Detachable building formwork for hollow floor slab and ribbed floor slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102926534B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469952A (en) * | 2013-09-14 | 2013-12-25 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN108756233A (en) * | 2018-05-30 | 2018-11-06 | 中国二十二冶集团有限公司 | Reserved electronic box hole mold and its application method |
| CN115370142A (en) * | 2022-08-29 | 2022-11-22 | 晟通科技集团有限公司 | Formwork assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2315956A (en) * | 1939-10-17 | 1943-04-06 | Chadwick N Heath | Method of and means for making reinforced concrete floors |
| CN1661170A (en) * | 2004-02-27 | 2005-08-31 | 邱则有 | Forming die for component of die body |
| CN1661172A (en) * | 2004-02-27 | 2005-08-31 | 邱则有 | Forming die for component of die body |
| CN1982594A (en) * | 2005-09-21 | 2007-06-20 | 邱则有 | Basin-shaped unit for hollow structural component |
| CN101864821A (en) * | 2010-06-23 | 2010-10-20 | 吴方伯 | Reinforced concrete hollow floor slab |
| CN101914967A (en) * | 2010-08-17 | 2010-12-15 | 吴方伯 | Reinforced concrete hollow floor and construction method |
-
2012
- 2012-11-26 CN CN201210486577.9A patent/CN102926534B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2315956A (en) * | 1939-10-17 | 1943-04-06 | Chadwick N Heath | Method of and means for making reinforced concrete floors |
| CN1661170A (en) * | 2004-02-27 | 2005-08-31 | 邱则有 | Forming die for component of die body |
| CN1661172A (en) * | 2004-02-27 | 2005-08-31 | 邱则有 | Forming die for component of die body |
| CN1982594A (en) * | 2005-09-21 | 2007-06-20 | 邱则有 | Basin-shaped unit for hollow structural component |
| CN101864821A (en) * | 2010-06-23 | 2010-10-20 | 吴方伯 | Reinforced concrete hollow floor slab |
| CN101914967A (en) * | 2010-08-17 | 2010-12-15 | 吴方伯 | Reinforced concrete hollow floor and construction method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469952A (en) * | 2013-09-14 | 2013-12-25 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN108756233A (en) * | 2018-05-30 | 2018-11-06 | 中国二十二冶集团有限公司 | Reserved electronic box hole mold and its application method |
| CN115370142A (en) * | 2022-08-29 | 2022-11-22 | 晟通科技集团有限公司 | Formwork assembly |
| CN115370142B (en) * | 2022-08-29 | 2023-08-15 | 晟通科技集团有限公司 | Form assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102926534B (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102808465B (en) | Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination | |
| CN106013530A (en) | Reinforcement structure of concrete shear wall based on 3D printing | |
| CN105569224A (en) | Concrete-filled steel tube edge restraint overlapping integrated shear wall and preparing and installation methods thereof | |
| CN104295088A (en) | Steel-wood combined formwork structure of shear walls on two sides of deformation joint and construction method of steel-wood combined formwork structure | |
| CN105926804A (en) | Reinforcement method of 3D printed reinforced masonry shear wall | |
| CN104956010A (en) | Concrete mold frame and method for making concrete mold using the same | |
| CN102926534B (en) | Detachable building formwork for hollow floor slab and ribbed floor slab | |
| CN106592996B (en) | The construction method that small ocean housing reform is made | |
| CN209907429U (en) | Industrialized dense rib plate type retaining wall | |
| CN107916677A (en) | Piping lane construction formwork system and its construction method | |
| KR101278547B1 (en) | The precast concrete wall for the water-storage construct | |
| CN214144682U (en) | Early structure of tearing open of floor template and building frame template structure | |
| CN207405730U (en) | A kind of discharge structure of basement | |
| CN203594157U (en) | Precast thermal-insulating wall plate | |
| CN109441099A (en) | Basement single side formwork system and the method for utilizing its outer wall of basement of constructing | |
| CN203334661U (en) | Scaffold-hole-free formwork construction device for brick-concrete structure construction column | |
| CN113235912A (en) | Wall formwork structure based on convenient fast-assembling of hidden casing is to drawing | |
| KR20130059010A (en) | Precast concrete column connecting structure using the low bending moment zone | |
| CN204001705U (en) | Outer wall of basement single surface formwork constructing structure based on earth anchor truss | |
| CN217151237U (en) | Bay window aluminum die | |
| CN214220178U (en) | Prefabricated disassembly-free side mold and adjustable supporting system for one-step molding of floor water retaining strip | |
| CN215055316U (en) | Primary and secondary beam node post-cast section template device | |
| CN105239770B (en) | Integrated casting steel framework plastic building template system | |
| CN115324249A (en) | Whole pouring construction method for fully prefabricated kitchen and toilet floor and inverted ridge | |
| CN203669175U (en) | Reinforced concrete hollow floorslab |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180608 Address after: 410300 No. 288 West Renmin Road, Chengnan Road, Tianxin District, Changsha, Hunan Patentee after: HUNAN HANG KAI BUILDING MATERIALS TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 410082 Structural Engineering Research Institute, Hunan University, Lushan South Road, Changsha, Hunan Patentee before: Wu Fangbo |
|
| 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: 20150401 Termination date: 20211126 |