CN112681705A - Steel wire rope net platform for construction and installation method thereof - Google Patents
Steel wire rope net platform for construction and installation method thereof Download PDFInfo
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- CN112681705A CN112681705A CN202011519666.XA CN202011519666A CN112681705A CN 112681705 A CN112681705 A CN 112681705A CN 202011519666 A CN202011519666 A CN 202011519666A CN 112681705 A CN112681705 A CN 112681705A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 132
- 239000010959 steel Substances 0.000 title claims abstract description 132
- 238000010276 construction Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title abstract description 6
- 239000000835 fiber Substances 0.000 claims description 42
- 239000000725 suspension Substances 0.000 claims description 18
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 10
- 239000008397 galvanized steel Substances 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 238000009435 building construction Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 11
- 229910000746 Structural steel Inorganic materials 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 238000009432 framing Methods 0.000 description 4
- 210000002837 heart atrium Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a steel wire rope net platform for construction and an installation method thereof, and relates to the technical field of building construction, wherein the platform comprises a horizontally laid bearing platform and a vertically arranged traction device, wherein the bearing platform comprises steel wire rope stress units which are horizontally arranged transversely and longitudinally, the area of each stress unit is 1.5 m-2.0 m, the nodes between adjacent stress units are connected with a steel beam at the top of the platform through the traction device, and the nodes inside the stress units are fixed through a locking device; the stress unit close to the shear wall is fixed with the shear wall through the extending steel wire rope, and a steel wire mesh is further laid on the platform. The invention discloses a method for installing a steel wire rope net platform for construction. The construction platform provided by the invention adopts the cable net platform, so that a large amount of steel can be saved, the connection is faster, various materials can be recycled, and the cost is reduced by 60% compared with that of a full scaffold.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a steel wire rope net platform for construction and an installation method thereof.
Background
According to the regulation of JGJ80-2016 safety technical Specification for high-altitude operation in building construction, if the height exceeds 2 meters, the high-altitude operation is realized, and a construction platform needs to be erected. The most common construction platform is a full-hall type steel pipe scaffold, and the full-hall type steel pipe scaffold has the defects of great self weight, easily damaged components, large floor area, large load on the ground of a foundation building, incapability of cross construction of a wall top ground and the like. Indoor high and large spaces such as large shopping mall indoor atrium, etc. The atrium is to reflect the space sense, the bottom elevation is plus or minus 0.000 to the roof daylighting top. Is one spanning 7 layers. The height is about 30 meters, and the indoor space is large. The decoration materials and the process are particularly complex. For the reasons, in actual engineering construction, steel pipe scaffolds are not suitable for a lot of spaces with high requirements on construction progress and process.
Therefore, in order to solve the high-altitude operation of indoor construction, those skilled in the art are dedicated to developing a novel cable platform and a construction method.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to avoid the use of full-length steel pipe scaffolds.
In order to achieve the above object, the present invention provides a wire rope net platform for construction, wherein the platform comprises a horizontally configured bearing platform and a vertically configured pulling device,
the bearing platform comprises steel wire rope stress units which are horizontally arranged transversely and longitudinally, the area of each stress unit is 1.5m by 1.5 m-2.0 m by 2.0m, nodes between adjacent stress units are connected with top steel beams of the platform through a traction device, and nodes inside the stress units are locked through a locking device;
the stress unit close to the shear wall is fixed with the shear wall through the extending steel wire rope, and a steel wire mesh is further laid on the platform.
Further, the steel wire rope is a fiber core steel wire rope, and the breaking strength of the fiber core steel wire rope is greater than 1570 MPa.
Furthermore, the traction device is a hanging column, and the material of the hanging column is steel above Q235.
Further, the locking device is a U-shaped buckle.
Furthermore, the stress unit close to the shear wall is fixed with the shear wall through the extended steel wire rope to form a fiber core steel wire rope, the fiber core steel wire rope penetrates through the hole template of the shear wall and is fixed through a cast iron clamp, and a galvanized steel plate is arranged in front of the cast iron clamp and the shear wall to increase the stress area.
Further, the load-bearing platform may also include a paved scaffold board.
The invention also provides an installation method of the steel wire rope net platform for construction,
the method comprises the following steps:
s100, mounting a positioning hanging column on the reverse hanging soft platform;
s200, installing a transverse steel wire rope, a scaffold board and a safety net;
s300, installing a longitudinal steel wire rope;
s400, laying a fireproof device and a baseboard.
Further, the step S100 further includes installing positioning hanging pillars at the starting point, the end point and the middle point of the reverse-hanging soft platform, and setting oblique steel pipes at the hanging pillars at the starting point and the end point to form a triangular stable structure, so as to become a geometrically invariant structure system.
Further, the step S200 further includes:
s201, a first transverse steel wire rope is pulled to a lifting column at a final point from a lifting column at a starting point;
s202, arranging a temporary fixing point on a second transverse steel wire rope in a corridor area, fixing one end of the second transverse steel wire rope, and then dragging the second transverse steel wire rope to the other end of the second transverse steel wire rope to be temporarily fixed;
s203, installing the residual transverse steel wire rope according to the step S202;
s204, when the transverse steel wire ropes are installed for more than 8m, the formed steel wire ropes with the distance of 1.5-2m are utilized, a scaffold board is laid from one side of the corridor, and 12# iron wires are used for binding with the steel wire reverse-hanging soft platform at four corners of the scaffold board to firmly prevent slippage;
s205, after all the scaffold boards are laid, fully spreading safety nets at the lowest ends of the reverse-hanging soft platforms.
Further, the step S300 further includes:
s301, installing a first longitudinal steel wire rope from the hoisting post at the starting point, and drawing the first longitudinal steel wire rope to the other end for fixing;
s302, locking the first longitudinal steel wire rope and the transverse steel wire rope at a node through a U-shaped buckle;
and S303, mounting the suspension posts, fixing the suspension posts and the horizontal steel wire ropes, and then sequentially mounting the rest longitudinal steel wire ropes.
Furthermore, the fireproof device is fireproof cloth, and the wooden foot plate is laid in a construction area.
Compared with the prior art, the invention has the following technical advantages:
(1) the traditional construction platform has large indoor all-round scaffold, occupies large space, causes difficulty in horizontal transportation of a construction site, blocks sight, has many sanitary dead angles and is not beneficial to site safety and civilized construction management. The following construction and transportation are not affected;
(2) the construction period of the full framing scaffold in the traditional construction platform room is adjusted by considering the assembling and disassembling of the full framing scaffold, and the work is usually occupied on a construction critical line. As mentioned above, the top construction must be before the full framing scaffold is removed, the ground construction must be after the full framing scaffold is removed, the distance between the cable net platform and the ground is large, and after the ground is protected, the cable net platform and the top can be constructed at the same time, so that the construction progress is accelerated;
(3) the steel wire rope net platform for construction is convenient to erect and safe to construct. The construction platform for decorating the top surface is broken through being erected from the ground, and the construction platform is different from other construction platforms for converting the top surface in a large number of welding. In the embodiment of the invention, the 150-150 galvanized steel square pipe is manufactured in a processing plant. The hot-galvanized steel bar hoop is used for hooping the steel beam on a construction site and is fixed with the fiber core steel wire rope through the lock catch, all the hot-galvanized steel bar hoop and the fiber core steel wire rope are mechanically connected, and fire and welding are not needed.
(4) The steel wire rope net platform for construction can save a large amount of steel materials and is connected more quickly by adopting the rope net platform. Meanwhile, various materials can be recycled. The cost is expected to be saved by 60 percent compared with the full scaffold.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a complete schematic diagram of a cable net platform according to a preferred embodiment of the present invention;
FIG. 2 is a schematic front view of a cable net platform according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of the mounting structure of the suspension posts at the edge of the cable net platform according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view of a davit connecting an original structural steel beam and a load-bearing platform;
the steel wire mesh reinforced concrete wall comprises 1-transverse fiber core steel wire ropes, 2-scaffold boards, 3-full-paved safety nets, 4-100 x 100 steel wire meshes, 5-U-shaped buckles, 6-hoops, 7-original structural steel beams, 8-high-strength bolts, 9-hanging columns, 10-galvanized steel plates, 11-U-shaped clamps, 12-longitudinal fiber core steel wire ropes, 13-original concrete walls, 14-holes for original concrete wall formworks, 15-cast iron clamps, 16-original concrete beams or floor slabs, 17-expansion bolts and 18-supporting steel pipes.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
The height of the indoor atrium of the large shopping mall is generally 5-6 layers of a hollow space, and the net height is about 50 meters. The general decoration method is that the top surface adopts a metal material ceiling such as an aluminum square tube or a special-shaped aluminum plate, the wall surface is dry-hung with stone, and the ground is paved with stone. If the wall top and the ground are required to be operated in a crossed mode, the protection is achieved by methods such as building of a shed and the like, and the flow construction in different areas can be achieved. But adopt full hall formula steel pipe scaffold, it rises from ground, occupies whole space, and the most convenient is the construction of furred ceiling. But the wall decoration is not suitable for construction, and the ground decoration can not be constructed. The cable platform can solve the problems in construction. The stressed rooting point of the cable platform is on the structural column or the wall body or a steel pipe hooped under the top beam. The center of the lower end of the steel pipe of the hoop under the beam is fixed at the root point to penetrate through the fiber core steel wire rope. The steel wire ropes are criss-cross, and safety protection nets are laid to form a suspended platform net. The patent of the invention takes a mall atrium with a reinforced concrete structure as an example. The upper main beam is a circular steel beam, the periphery of the upper main beam is partially provided with a concrete shear wall, and a concrete structural beam is arranged at the position without the concrete shear wall. The steel wire rope of the rope platform adopts a 28mm fiber core steel wire rope with the rupture strength of more than 1570 MPa. The distance between the steel wire ropes is 1.6m, and a vertical rectangular square pipe with the length of 150 x 150mm is arranged every 8 x 8m to form a stress unit. The problems that the construction platform is high in erection cost, not beneficial to cross construction after erection, large in platform erection labor and the like are solved.
The invention provides a steel wire rope net platform for construction, the complete schematic diagram of which is shown in figure 1,
the platform comprises a horizontally arranged load-bearing platform and a vertically arranged pulling device,
the bearing platform comprises steel wire rope stress units which are horizontally arranged transversely and longitudinally, the area of each stress unit is 1.5m by 1.5 m-2.0 m by 2.0m, nodes between adjacent stress units are connected with top steel beams of the platform through a traction device, and nodes inside the stress units are locked through a locking device;
fig. 2 is a schematic front structural view of a cable net platform according to a preferred embodiment of the present invention, wherein a stress unit near a shear wall is fixed to the shear wall 13 by an extended steel cable.
The steel wire rope is a fiber core steel wire rope and is divided into a transverse fiber core steel wire rope 1 and a longitudinal fiber core steel wire rope 12, and the fracture strength of the transverse fiber core steel wire rope 1 and the longitudinal fiber core steel wire rope 12 is greater than 1570 MPa;
the traction device is a suspension post 9, and the suspension posts 9 are distributed on the bearing platform and at the positions of the two sides close to the shear wall 13.
The locking device is used for locking the positions of nodes in the stress unit, namely the positions of the cross points of the transverse fiber core steel wire rope 1 and the longitudinal fiber core steel wire rope 12, and is specifically provided with a U-shaped buckle 5.
The stress unit close to the shear wall 13 is fixed with the shear wall 13 through the extending steel wire rope to form a transverse fiber core steel wire rope 1 and a longitudinal fiber core steel wire rope 12, the transverse fiber core steel wire rope 1 and the longitudinal fiber core steel wire rope 12 penetrate through a shear wall template hole 14 of the shear wall 13 and then are fixed through a cast iron clamp 15, and a galvanized steel plate 10 is arranged between the cast iron clamp 15 and the shear wall 13 to increase the stress area.
For local operation convenience, the bearing platform can also comprise a paved scaffold board 2.
The invention also provides a platform installation method, which comprises the following steps:
s100, installing a positioning hanging column 9 on the reverse hanging soft platform;
s200, installing a transverse fiber core steel wire rope 1;
s300, mounting the scaffold board 2 and the safety net 3;
s400, installing a transverse fiber core steel wire rope 12;
s500, laying a fireproof device and a scaffold board 2.
In a preferred embodiment, step S100 further includes installing positioning hanging pillars 9 at the starting point, the ending point and the middle point of the reverse-suspended soft platform, and installing inclined supporting steel pipes 18 at the starting point, the hanging pillars 9 and the ending point, the inclined supporting steel pipes 9 are fixed into the original concrete beam or floor slab 16 through expansion bolts 17, and the inclined supporting steel pipes form a triangular shape with the original concrete beam or floor slab 16 and the hanging pillars 9 so that the hanging pillars 9 can stably support the original concrete beam or floor slab 16, and in order to avoid damaging the original concrete beam or floor slab 16, galvanized steel plates 10 may be added between the expansion bolts 17 and the original concrete beam or floor slab 16, as shown in fig. 3.
In a preferred embodiment, the step S200 further includes:
s201, drawing the first transverse fiber core steel wire rope 1 from a hanging column 9 at a starting point to a hanging column 9 at an end point;
s202, arranging a temporary fixing point in a corridor area and fixing one end of a second transverse fiber core steel wire rope 1, and then drawing the second transverse fiber core steel wire rope to the other end for temporary fixing;
s203, installing the residual fiber core steel wire rope 1 according to the step S202;
s204, when the fiber core steel wire rope 1 is installed for more than 8m, a scaffold board 2 is laid from one side of the corridor by utilizing the formed transverse fiber core steel wire rope 1 with the interval of 1.5-2m, and 12# iron wires are bound with a steel wire reverse-hanging soft platform at four corners of the scaffold board 2 to firmly prevent slippage;
s205, after the scaffold boards 2 are completely paved, the safety net 3 is fully distributed at the lowest end of the reverse-hanging soft platform.
In a preferred embodiment, the step S300 further includes:
s301, installing a first longitudinal fiber core steel wire rope 12 from the lifting column 9 at the starting point, and drawing the first longitudinal fiber core steel wire rope to the other end for fixing;
s302, locking the first longitudinal fiber core steel wire rope 12 and the transverse fiber core steel wire rope 1 at a node through a U-shaped buckle 5;
and S303, mounting the suspension posts 9, fixing the suspension posts with the horizontal steel wire ropes, and then sequentially mounting the remaining longitudinal fiber core steel wire ropes 12, wherein in the step, in the actual operation, a construction hanging basket can also be adopted, and after the suspension posts 9 are uniformly mounted, the transverse fiber core steel wire ropes 1 and the longitudinal fiber core steel wire ropes 12 are mounted one by one in cooperation with a crank arm high vehicle.
In a preferred embodiment, the fire-protection device is a fire-protection cloth, and the scaffold board 2 is laid on a local construction area.
Fig. 4 is a schematic diagram of the suspension post connecting the original structural steel beam and the bearing platform, wherein the upper end of the suspension post 9 is fixedly connected with the original structural steel beam 7 through a hoop 6 by a high-strength bolt 8, the lower end of the suspension post 9 is sleeved with a galvanized steel plate 10, a U-shaped clamp 11 penetrates out from the lower part to the upper part of the joint of the longitudinal fiber core steel wire rope 12 and the transverse fiber core steel wire rope 1, and penetrates through a screw hole of the galvanized steel plate 10 to fix the lower end of the suspension post 9.
For the safety of construction, workers need to connect one end of the safety rope with the suspension post 9 through a safety buckle with a locking device during operation, the other end of the safety rope is fixed at the waist, the safety buckle can be a climbing buckle with a threaded lock, accidental opening can be prevented, and the safety rope can preferably bear more than 300 pounds for ensuring the safety of the workers.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (11)
1. A steel wire rope net platform for construction, wherein the platform comprises a bearing platform laid horizontally and a traction device arranged vertically,
the bearing platform comprises steel wire rope stress units which are horizontally arranged transversely and longitudinally, the area of each stress unit is 1.5m by 1.5 m-2.0 m by 2.0m, nodes between adjacent stress units are connected with top steel beams of the platform through a traction device, and nodes inside the stress units are fixed through a locking device; the stress unit close to the shear wall is fixed with the shear wall through the extending steel wire rope, and a steel wire mesh is further laid on the platform.
2. The platform of claim 1, wherein the steel cord is a fiber core steel cord having a breaking strength greater than 1570 MPa.
3. The platform as claimed in claim 1, wherein the pulling device is a hanging post made of Q235 or above steel.
4. The platform of claim 1, wherein the locking device is a U-shaped clasp.
5. The platform of claim 1, wherein the force-bearing units adjacent to the shear wall are fixed with the shear wall through the extended steel cables to form fiber core steel cables, the fiber core steel cables penetrate through a hole template of the shear wall, and the fiber core steel cables are fixed through a cast iron clamp, and a galvanized steel plate is arranged in front of the cast iron clamp and the shear wall to increase the force-bearing area.
6. The platform of claim 1, wherein the load-bearing platform further comprises a paved scaffold board.
7. A method of installing a platform as claimed in any one of claims 1 to 6, the method comprising the steps of:
s100, mounting a positioning hanging column on the reverse hanging soft platform;
s200, installing a transverse steel wire rope, a scaffold board and a safety net;
s300, installing a longitudinal steel wire rope;
s400, laying a fireproof device and a scaffold board.
8. The method of claim 7, wherein the step S100 further comprises installing positioning hanging pillars at the starting point, the end point and the middle point of the reverse-suspended soft platform, and arranging oblique steel pipes on the hanging pillars at the starting point and the end point to form a triangular stable structure, so as to become a geometrically invariant structural system.
9. The method of claim 7, wherein the step S200 further comprises:
s201, a first transverse steel wire rope is pulled to the suspension post at the end point from the suspension post at the starting point;
s202, setting a temporary fixing point in a corridor area, fixing one end of a second transverse steel wire rope at the temporary fixing point, and then drawing the second transverse steel wire rope to the other end for temporary fixing;
s203, installing the residual transverse steel wire rope according to the step S202;
s204, when the transverse steel wire ropes are installed for more than 8m, the formed steel wire ropes with the distance of 1.5-2m are utilized, a scaffold board is laid from one side of the corridor, and 12# iron wires are used for binding with the steel wire reverse-hanging soft platform at four corners of the scaffold board to firmly prevent slippage;
s205, after the scaffold boards are completely laid, the reverse-hanging soft platform is fully covered with the safety net.
10. The method according to claim 7 or 8, wherein the step S300 further comprises:
s301, installing a first longitudinal steel wire rope from the suspension post at the starting point, drawing the first longitudinal steel wire rope to the opposite end, penetrating through a hole of a raw template of the shear wall, and fixing the first longitudinal steel wire rope on the shear wall by using a cast iron clamp;
s302, fixing the first longitudinal steel wire rope and the installed transverse steel wire rope at a node through a U-shaped buckle;
and S303, mounting the suspension posts, fixing the suspension posts and the horizontal steel wire rope, and then sequentially mounting the rest longitudinal steel wire ropes.
11. The method of claim 7, wherein the fire protection device is a fire protection cloth and the scaffold board is laid in a construction area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011519666.XA CN112681705A (en) | 2020-12-21 | 2020-12-21 | Steel wire rope net platform for construction and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011519666.XA CN112681705A (en) | 2020-12-21 | 2020-12-21 | Steel wire rope net platform for construction and installation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530736U (en) * | 2012-04-12 | 2012-11-14 | 中建八局第二建设有限公司 | Steel wire rope operating platform for building |
| CN204875534U (en) * | 2015-07-17 | 2015-12-16 | 北京市市政六建设工程有限公司 | Steel case roof beam construction span wire platform |
| CN109083395A (en) * | 2018-08-14 | 2018-12-25 | 浙江中南建设集团钢结构有限公司 | A kind of Excitations for Long Span Suspension operating platform and its erection method |
| CN110778094A (en) * | 2019-11-06 | 2020-02-11 | 江苏中南建筑产业集团有限责任公司 | High-altitude large-span dragline net operating platform and construction method |
| TWI684700B (en) * | 2018-08-10 | 2020-02-11 | 潤弘精密工程事業股份有限公司 | Scaffold system and scaffold structure thereof |
-
2020
- 2020-12-21 CN CN202011519666.XA patent/CN112681705A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530736U (en) * | 2012-04-12 | 2012-11-14 | 中建八局第二建设有限公司 | Steel wire rope operating platform for building |
| CN204875534U (en) * | 2015-07-17 | 2015-12-16 | 北京市市政六建设工程有限公司 | Steel case roof beam construction span wire platform |
| TWI684700B (en) * | 2018-08-10 | 2020-02-11 | 潤弘精密工程事業股份有限公司 | Scaffold system and scaffold structure thereof |
| CN109083395A (en) * | 2018-08-14 | 2018-12-25 | 浙江中南建设集团钢结构有限公司 | A kind of Excitations for Long Span Suspension operating platform and its erection method |
| CN110778094A (en) * | 2019-11-06 | 2020-02-11 | 江苏中南建筑产业集团有限责任公司 | High-altitude large-span dragline net operating platform and construction method |
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Effective date of registration: 20211223 Address after: 102211 no.295 Dadongliu, Xiaotangshan Industrial Park, Changping District, Beijing Applicant after: BEIJING GANGYUAN ARCHITECTURAL DECORATION ENGINEERING Co.,Ltd. Applicant after: JANGHO GROUP Co.,Ltd. Applicant after: BEIJING JANGHO CURTAIN WALL SYSTEM ENGINEERING Co.,Ltd. Address before: 102211 no.295 Dadongliu, Xiaotangshan Industrial Park, Changping District, Beijing Applicant before: BEIJING GANGYUAN ARCHITECTURAL DECORATION ENGINEERING Co.,Ltd. Applicant before: JANGHO GROUP Co.,Ltd. |
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