CN203782942U - Mounting system used for multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall - Google Patents
Mounting system used for multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall Download PDFInfo
- Publication number
- CN203782942U CN203782942U CN201420156358.9U CN201420156358U CN203782942U CN 203782942 U CN203782942 U CN 203782942U CN 201420156358 U CN201420156358 U CN 201420156358U CN 203782942 U CN203782942 U CN 203782942U
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- China
- Prior art keywords
- section bar
- keel
- curtain wall
- metal decking
- mounting system
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- 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
- 229910052751 metal Inorganic materials 0.000 claims abstract description 74
- 239000002184 metal Substances 0.000 claims abstract description 74
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 24
- 239000010936 titanium Substances 0.000 claims description 24
- 229910052719 titanium Inorganic materials 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 230000001788 irregular Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Finishing Walls (AREA)
Abstract
The utility model provides a mounting system used for a multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall. The curtain wall mounting system includes a curtain wall face board and a lateral bracing keel. The curtain wall mounting system is characterized in that the lateral bracing keel has a round pipe structure; the bracing keel is provided with a keel mounting component; each metal face board is connected with the lateral bracing keel through at least two multi-dimensional-adjusting components; each multi-dimensional-adjusting component is composed of a socket-type section pedestal, an L-shaped socket section and a socket groove; each socket-type section pedestal is fixed on the lateral bracing keel; each L-shaped socket section and each socket groove are arranged on the upper part of the inner side of a lower one of two adjacent metal face boards and in the lower part of the inner side of the higher one of the two adjacent metal face boards respectively; a lateral inserting board of each L-shaped socket section is connected with the socket-type section pedestal through an adjusting bolt and the upper end of the L-shaped socket section is inserted in the corresponding socket groove. The curtain wall mounting system is substantially reduced in processing difficulty and cost. Design, processing and assembling difficulties and costs are reduced in the maximum degree. The mounting system is good in economic value and application value.
Description
Technical field
The utility model relates to building curtain wall field, and especially a kind of multidimensional regulates hyperboloid titanium plate curtain wall mounting system
Background technology
Along with scientific and technological development, digitizing technique utilization under construction, appearance of new material etc., the problem that non-linear, warp surface etc. is much difficult to calculate and analyze is all solved, space also needn't be subject to the constraint of body, make architect can indiscriminately ad. as one wishes design any type of shape and space, the stimulation of Tourism Economy simultaneously and the pursuit to urban landmark building, also played the effect of adding fuel to the flames to growing prosperity of irregular building.And in various irregular buildings, the particularly architect's favor of three-dimensional irregular curved surface curtain wall, but can increase undoubtedly much according to its cost of the irregular curved surface curtain wall of the three-dimensional of existing routine implementation method, the waste of material, the increase of difficulty of construction causes the continuous increase of cost of labor, and the problem such as duration delay.Particularly for some high-grade materials as titanium plate, it is more difficult that itself makes curved slab, and also unusual height of cost, but due to titanium plate material, to compare aluminium sheet well a lot, its brightness is also higher, durable in use, a lot of high-grade buildings meeting choice for use titanium plates, as curtain wall slab, are therefore developed high, practical, the safe hyperboloid multidimensional of a set of integrated level and are regulated curtain wall system particularly important.
Summary of the invention
The utility model is according to the deficiencies in the prior art, provide a kind of multidimensional to regulate hyperboloid titanium plate curtain wall mounting system, the utility model utilizes the metal sheet characteristic of clod wash within the specific limits, adopt titanium plate to replace three dimensional panel, realizing multidimensional by aluminium alloys adaptor regulates, adopt adaptor to coordinate with horizontal keel and realize multi-angle adjusting, to realize the installation system of the irregular titanium plate surface fitting of complicated three-dimensional.
The technical solution adopted in the utility model is: described a kind of multidimensional regulates hyperboloid titanium plate curtain wall mounting system to comprise curtain wall slab and cross binding keel, described curtain wall slab is to be spliced by polylith metal decking, every metal decking inner side is provided with cross binding keel, it is characterized in that: described cross binding keel are round tubular structure, are provided with keel installation member on support keel, every metal decking is connected with cross binding keel by least two multidimensional adjustment means, multiple multidimensional adjustment means are arranged on two neighbouring metal decking junctions, and each multidimensional adjustment means is by grafting profile base, L-type grafting section bar and inserting groove composition, described grafting profile base is fixed on cross binding keel, described L-type grafting section bar is arranged on the downside metal decking inside upper part in two adjacent metal deckings, and offer adjustment hole on its horizontal plate, described inserting groove correspondence is arranged on the upside metal decking lower inside in two adjacent metal deckings, the horizontal plate of L-type grafting section bar is connected with grafting profile base by adjusting bolt, the vertical plate of L-type grafting section bar is fixed on corresponding metal decking inner side, peg graft with corresponding inserting groove in its upper end.
Further program of the utility model: described cross binding keel are curved circular tubulose keel.
The utility model is technical scheme preferably: described keel installation member is made up of circular base and fixture section bar, circular base is set on cross binding keel, and fix by screw, the tail end of fixture section bar is fixedly connected with by fastening bolt with circular base, and fixture section bar clamps by its bare terminal end and metal Roof panel.
The utility model is technical scheme preferably: described metal decking adopts titanium flat board, longitudinally be provided with many reinforcing rib section bars at the back side of metal decking, every reinforcing rib section bar is fixing by the flanging laminating of switching groove aluminium and double-sided tape and metal decking, in gap between reinforcing rib section bar and metal decking, be filled with structure glue, described L-type grafting section bar and inserting groove are bolted on respectively on the reinforcing rib section bar of corresponding metal decking.
The utility model is technical scheme preferably: be provided with junction plate in grafting profile base and L-type grafting section bar junction, the horizontal plate of L-type grafting section bar is placed in junction plate below, and be connected by adjusting bolt with junction plate, between the horizontal plate of L-type grafting section bar and junction plate, be provided with tooth pad.
The utility model is technical scheme preferably: the circular base that described grafting profile base and circular base are all made up of two and half arcuate base, two and half arcuate base are set on cross binding keel, and are bolted spacing.
The utility model is technical scheme preferably: be strip adjustment hole at adjustment hole, have one or morely, all with laterally plate is parallel for each strip adjustment hole, in each adjustment hole, is provided with adjusting bolt.
The utility model regulates location by multidimensional, the horizontal keel of panel are accurately installed, then after installation panel, utilize the metal sheet characteristic of clod wash within the specific limits, adopt the dull and stereotyped three dimensional panel that replaces, realizing multidimensional by aluminium alloys adaptor regulates, adopt adaptor to coordinate with horizontal keel and realize multi-angle adjusting, to realize the irregular titanium plate surface fitting of complicated three-dimensional.
The beneficial effects of the utility model:
1. the utility model is simple in structure, and installation substep is carried out, and has simplified on-the-spot material category and installation steps, has reduced on-the-spot erecting tools, has improved efficiency of construction, installs more conveniently, and structure is safer;
2. adaptable, can adapt to the curved surface of arbitrary shape, by regulating aluminium alloys adaptor can reach perfect fitting surface effect;
The utility model uses the dull and stereotyped curved slab that replaces, after installation, realize curved surface by three-dimensional regulating mechanism, compare with direct making curved surface panel, its cost reduces greatly, difficulty of processing and expense reduce greatly, farthest simplify and reduced design, processing, assembling difficulty and expense, there is good economic worth and using value, also can be applicable to can not realizing self bending material of making curved surface panel as titanium plate etc.
Brief description of the drawings
Fig. 1 is the structural representation of this Shi Xin Xing Transverse to section;
Fig. 2 is the structural representation of the utility model vertical cross section;
Fig. 3 is the transverse sectional view of the utility model metal decking and support keel junction;
Fig. 4, Fig. 5 are the longitudinal sectional views of metal decking and support keel junction in the utility model;
Number in the figure represents: 1-upside metal decking, 2-switching groove aluminium, 3-reinforcing rib section bar, 4-keel installation member, 4-1-circular base, 4-2-fixture section bar, 5-multidimensional adjustment means, 5-1-grafting profile base, 5-2-L-type grafting section bar, 5-3-inserting groove, 6-structure glue, 7-adjusting bolt, 8-adjustment hole, 9-cross binding keel, 10-downside metal decking, 11-junction plate, 12-tooth pad, 13-metal Roof panel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.As Fig. 1, shown in Fig. 2, described multidimensional regulates hyperboloid titanium plate curtain wall mounting system to comprise curtain wall slab and cross binding keel, described curtain wall slab is to be spliced by polylith metal decking, every metal decking inner side is provided with cross binding keel, it is characterized in that: described cross binding keel 9 are round tubular structure, the length of every cross binding keel 9 is several times of metal decking length, the length of a general metal decking is 2m left and right, and the length of a support keel 9 is 6-7m, every keel can be installed the metal decking of three left and right, in installation process, guarantee that the joint location of two panels and the joint location of two keel stagger, cross binding keel 9 are arc, can directly be processed into drag keel, also can be on-the-spot bending, its radian calculates according to the curved surface radian of job site.On each support keel 9, be provided with keel installation member 4, every metal decking 1 is connected with cross binding keel 9 by least two multidimensional adjustment means 5, multiple multidimensional adjustment means 5 are arranged on two neighbouring metal decking junctions, two neighbouring metal deckings can be connected, and facilitate metal decking multidimensional to regulate.
As shown in Figure 3, Figure 4, described keel installation member is made up of circular base 4-1 and fixture section bar 4-2, circular base 4-1 is made up of two and half arcuate base, two and half arcuate base are set on cross binding keel 9, and fixing spacing by multiple bolts, the tail end of fixture section bar 4-2 is fixedly connected with by fastening bolt with circular base 4-1, and fixture section bar 4-2 bare terminal end and metal Roof panel 13 clamp, by keel installation to metal Roof panel 13.
As Fig. 3, shown in Fig. 5, described multidimensional adjustment means 5 is by grafting profile base 5-1, L-type grafting section bar 5-2 and inserting groove 5-3 composition, described grafting profile base 5-1 is also made up of two and half arcuate base, two and half arcuate base are set on cross binding keel 9, and fixing spacing by multiple bolts, be provided with junction plate 11 at grafting profile base 5-1 and L-type grafting section bar 5-2 junction, the horizontal plate of L-type grafting section bar 5-2 is placed in junction plate 11 belows, and be connected by adjusting bolt with junction plate, between the horizontal plate of L-type grafting section bar 5-2 and junction plate 11, be provided with tooth pad 12, tooth pad can be directly installed on the horizontal plate upper surface of L-type grafting section bar 5-2, convenient adjusting.Described L-type grafting section bar 5-2 is arranged on downside metal decking 10 inside upper part in two adjacent metal deckings, and offer adjustment hole 8 on its horizontal plate, as shown in Figure 3, on the horizontal plate of each L-type grafting section bar, offer multiple adjustment holes 8, ordinary circumstance 2-3 is better, each adjustment hole is strip, laterally be opened on the horizontal plate of L-type grafting section bar, and parallel with horizontal plate, in each adjustment hole 8, be provided with adjusting bolt 7, the horizontal plate of L-type grafting section bar is connected with the junction plate 11 of grafting profile base 5-1 by multiple adjusting bolts 7, and each adjusting bolt 7 can be in the interior movement of adjustment hole 8.
As shown in Figure 3, described metal decking adopts titanium plate, longitudinally be provided with many reinforcing rib section bars 3 at the back side of metal decking, every reinforcing rib section bar 3 is fixing by the flanging laminating of switching groove aluminium 2 and double-sided tape and metal decking, in gap between reinforcing rib section bar 3 and metal decking, be filled with structure glue 6, described L-type grafting section bar 5-2 and inserting groove 5-3 are bolted on respectively on the reinforcing rib section bar 3 of corresponding metal decking.As shown in Figure 4, Figure 5, described inserting groove 5-3 correspondence is arranged on upside metal decking 1 lower inside in two adjacent metal deckings, the base plate of inserting groove 5-3 is fixed by screws on the reinforcing rib section bar 3 of corresponding metal decking, its notch down, the vertical plate of L-type grafting section bar 5 is fixed by screws on the reinforcing rib section bar 3 of corresponding metal decking, and its upper end is corresponding inserts in inserting groove 5-3.
Panel of the present utility model is to adopt titanium plate directly in processing plant, to complete, panel cutting, channeling flanging complete by professional Digit Control Machine Tool, after flanging completes, reinforcing rib section bar 3 is fixing by transfer groove aluminium 2 and double-sided tape and panel 1 flanging laminating, gap between reinforcing rib section bar 3 and panel 1 is tamped by structure glue 6, then L-type grafting section bar 5-2 is installed in the upper end of each metal decking, and lower end correspondence position is provided with inserting groove 5-3.
When concrete installation: first metal Roof panel 14 is installed, arranging undetected looking into confirms without getting final product sectional fixture section bar 4-2 and circular base 4-1 after leak source, the bolt group of fixture section bar 4-2 and circular base 4-1 does not need to tighten, when cross binding keel 9 are located by total powerstation, after the angle of alignment jig section bar 4-1 upper-lower position, circular base 4-1 and cross binding keel 9 are worked good, then bolt group is tightened it is fixed, after 9 installations of cross binding keel, the metal decking of making just can be installed, metal decking directly adopts titanium flat board, downside metal decking 10 in two adjacent metal deckings is first installed, upside metal decking 10 is fixed on cross binding keel 9 by grafting profile base 5-1 by its top L-type grafting section bar 5-2, until metal decking through location after, upside metal decking 1 is installed again, upside metal decking 1 is also fixed on cross binding keel 9 by grafting profile base 5-1 by its top L-type grafting section bar 5-2, until metal decking through location after, the inserting groove 5-3 on base just can dock with the L-type grafting section bar 5-2 of mounted upside metal decking 1 before, after regulating the position, left and right of grafting profile base 5-1 and vertical plane internal rotation angle degree according to panel reinforcing rib section bar 3, grafting profile base 5-1 is fixed, reinforcing rib section bar 3 is fixed on L-type grafting section bar 5-2, so far, an erecting of panel completes, after installation, regulate the turnover relation of L-type grafting section bar 5-2 and grafting profile base 5-1 by adjusting bolt 7, make overall curved surface round and smooth.
Claims (7)
1. a multidimensional regulates hyperboloid titanium plate curtain wall mounting system, comprise curtain wall slab and cross binding keel, described curtain wall slab is to be spliced by polylith metal decking, every metal decking inner side is provided with cross binding keel, it is characterized in that: described cross binding keel (9) are round tubular structure, are provided with keel installation member (4) on support keel (9); every metal decking is connected with cross binding keel (9) by least two multidimensional adjustment means (5), multiple multidimensional adjustment means (5) are arranged on two neighbouring metal decking junctions, and each multidimensional adjustment means (5) is by grafting profile base (5-1), L-type grafting section bar (5-2) and inserting groove (5-3) composition, described grafting profile base (5-1) is fixed on cross binding keel (9), described L-type grafting section bar (5-2) is arranged on downside metal decking (10) inside upper part in two adjacent metal deckings, and on its horizontal plate, offer adjustment hole (8), described inserting groove (5-3) correspondence is arranged on upside metal decking (1) lower inside in two adjacent metal deckings, the horizontal plate of L-type grafting section bar (5-2) is connected with grafting profile base (5-1) by adjusting bolt (7), the vertical plate of L-type grafting section bar (5) is fixed on corresponding metal decking inner side, peg graft with corresponding inserting groove (5-3) in its upper end.
2. multidimensional according to claim 1 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: described cross binding keel (9) are curved circular tubulose keel.
3. multidimensional according to claim 1 and 2 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: described keel installation member is made up of circular base (4-1) and fixture section bar (4-2), circular base (4-1) is set on cross binding keel (9), and fix by screw, the tail end of fixture section bar (4-2) is fixedly connected with by fastening bolt with circular base (4-1), and fixture section bar (4-2) clamps by its bare terminal end and metal Roof panel (13).
4. multidimensional according to claim 1 and 2 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: described metal decking adopts titanium flat board, longitudinally be provided with many reinforcing rib section bars (3) at the back side of metal decking, every reinforcing rib section bar (3) is fixing by the flanging laminating of switching groove aluminium (2) and double-sided tape and metal decking, in gap between reinforcing rib section bar (3) and metal decking, be filled with structure glue (6), described L-type grafting section bar (5-2) and inserting groove (5-3) are bolted on respectively on the reinforcing rib section bar (3) of corresponding metal decking.
5. multidimensional according to claim 1 and 2 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: be provided with junction plate (11) in grafting profile base (5-1) and L-type grafting section bar (5-2) junction, the horizontal plate of L-type grafting section bar (5-2) is placed in junction plate (11) below, and be connected by adjusting bolt with junction plate (11), between the horizontal plate of L-type grafting section bar (5-2) and junction plate (11), be provided with tooth pad (12).
6. multidimensional according to claim 1 and 2 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: the circular base that described grafting profile base (5-1) and circular base (4-1) are all made up of two and half arcuate base, it is upper that two and half arcuate base are set in cross binding keel (9), and be bolted spacing.
7. multidimensional according to claim 1 and 2 regulates hyperboloid titanium plate curtain wall mounting system, it is characterized in that: be strip adjustment hole at adjustment hole (8), have one or more, all with laterally plate is parallel for each strip adjustment hole (8), is provided with adjusting bolt (7) in each adjustment hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156358.9U CN203782942U (en) | 2014-04-01 | 2014-04-01 | Mounting system used for multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156358.9U CN203782942U (en) | 2014-04-01 | 2014-04-01 | Mounting system used for multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203782942U true CN203782942U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156358.9U Expired - Fee Related CN203782942U (en) | 2014-04-01 | 2014-04-01 | Mounting system used for multi-dimensional-adjusting double-curved-surface titanium-plate curtain wall |
Country Status (1)
| Country | Link |
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| CN (1) | CN203782942U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089244A (en) * | 2015-09-14 | 2015-11-25 | 苏州金螳螂建筑装饰股份有限公司 | Dry-hanging system for decoration material with curved surface adjustable |
| CN105298143A (en) * | 2015-05-12 | 2016-02-03 | 江苏南通六建建设集团有限公司 | Construction method of multi-lateral double-curved-face open-type titanium composite board curtain wall |
| CN106930544A (en) * | 2017-03-13 | 2017-07-07 | 河北卓秋实业有限公司 | A kind of wall installation and guide device |
| CN110453835A (en) * | 2019-08-16 | 2019-11-15 | 浙江省一建建设集团有限公司 | A kind of modular aluminum facade mounting structure and its mounting process |
| CN111058560A (en) * | 2019-12-18 | 2020-04-24 | 山西四建集团有限公司 | Construction method of multi-curved-surface special-shaped combined curtain wall system |
| CN112049286A (en) * | 2020-07-22 | 2020-12-08 | 中建二局装饰工程有限公司 | Large-span special-shaped hyperboloid aluminum plate curtain wall system and construction method thereof |
| CN114592630A (en) * | 2022-03-14 | 2022-06-07 | 中建八局第二建设有限公司 | Plug board curtain wall structure and construction method |
-
2014
- 2014-04-01 CN CN201420156358.9U patent/CN203782942U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298143A (en) * | 2015-05-12 | 2016-02-03 | 江苏南通六建建设集团有限公司 | Construction method of multi-lateral double-curved-face open-type titanium composite board curtain wall |
| CN105298143B (en) * | 2015-05-12 | 2019-06-21 | 江苏南通六建建设集团有限公司 | Polygon hyperboloid open type titanium composite plate curtain wall construction method |
| CN105089244A (en) * | 2015-09-14 | 2015-11-25 | 苏州金螳螂建筑装饰股份有限公司 | Dry-hanging system for decoration material with curved surface adjustable |
| CN106930544A (en) * | 2017-03-13 | 2017-07-07 | 河北卓秋实业有限公司 | A kind of wall installation and guide device |
| CN110453835A (en) * | 2019-08-16 | 2019-11-15 | 浙江省一建建设集团有限公司 | A kind of modular aluminum facade mounting structure and its mounting process |
| CN111058560A (en) * | 2019-12-18 | 2020-04-24 | 山西四建集团有限公司 | Construction method of multi-curved-surface special-shaped combined curtain wall system |
| CN111058560B (en) * | 2019-12-18 | 2021-09-21 | 山西四建集团有限公司 | Construction method of multi-curved-surface special-shaped combined curtain wall system |
| CN112049286A (en) * | 2020-07-22 | 2020-12-08 | 中建二局装饰工程有限公司 | Large-span special-shaped hyperboloid aluminum plate curtain wall system and construction method thereof |
| CN114592630A (en) * | 2022-03-14 | 2022-06-07 | 中建八局第二建设有限公司 | Plug board curtain wall structure and construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |