CN108560710B - Building envelope connecting system - Google Patents
Building envelope connecting system Download PDFInfo
- Publication number
- CN108560710B CN108560710B CN201810565466.4A CN201810565466A CN108560710B CN 108560710 B CN108560710 B CN 108560710B CN 201810565466 A CN201810565466 A CN 201810565466A CN 108560710 B CN108560710 B CN 108560710B
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- Prior art keywords
- pin shaft
- connecting plate
- enclosure
- transition support
- 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.)
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- 230000007704 transition Effects 0.000 claims abstract description 41
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2421—Socket type connectors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2451—Connections between closed section profiles
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention discloses an enclosure structure connecting system which comprises a main body structure (1), a transition support (2) and an enclosure structure (3), wherein one end of the transition support (2) is fixedly connected with the main body structure (1), a connecting plate (21) fixedly connected with the transition support is arranged on the transition support (2), and a sliding connecting structure capable of generating relative displacement along the deformation direction of the two is formed between one end of the enclosure structure (3) and the connecting plate (21). The enclosure structure connecting system provided by the invention has the advantages of no influence of deformation of a main body structure, slip and rotation, and suitability for complex modeling, and the temperature stress generated between the main body structure and the enclosure structure is eliminated by forming the sliding connecting structure capable of generating relative displacement along the deformation directions of the main body structure and the connecting plate between one end of the enclosure structure and the connecting plate, so that the safety performance of the enclosure structure is improved.
Description
Technical Field
The invention relates to the technical field of building enclosure systems, in particular to an enclosure structure connecting system which can be suitable for complex modeling and is not influenced by deformation, rotation and the like of a main body structure.
Background
At present, a main body structure of a large-span public building is mostly constructed in a steel structure mode, and a connecting mode of a structure serving as a building enclosure system such as a roof, a skylight and a wall surface and the main body steel structure is mostly in a welding or bolt connection mode. Along with the increasing complexity of building modeling and the increasing height, the difficulty that the enclosure system faces is also increasing, not only needs to satisfy the aesthetic art of appearance, but also needs to satisfy the requirements of wind resistance waterproof, heat preservation and insulation, sound absorption and insulation, vapor insulation and dampproofing, anticorrosion and other multiple functions, and the realization of all the functions of the enclosure system is established on the safe and reliable connection of the enclosure structure and the main body structure.
In recent years, public building enclosure systems around the country are constantly involved in wind-lifting accidents and water leakage accidents, and the reasons of the accidents with a considerable number of projects are directly related to the damage of the connection parts of the enclosure structures.
The support brackets 7 on the enclosure structure 3 and the main body structure 1 which are widely used in the prior art mainly adopt a welding or bolting mode, wherein the welding connection structure is shown in fig. 1 and 2, and the bolting structure is shown in fig. 3 and 4.
When the connecting mode is applied to large-span building projects with complicated modeling, the following problems are easy to occur:
(1) For a large-span main body structure, the temperature deformation amount of the main body structure and the temperature deformation amount of the enclosing structure are large, so that the deformation difference can generate large additional stress in the enclosing structure, and the enclosing structure is easy to bear internal stress exceeding the design value of the enclosing structure to damage.
(2) For complex hyperbolic or multi-curved modeling projects, the relative angle of the enclosure structure and the main body structure is a variable value, which can cause that the actual weld length or the bolt connection on site is inconsistent with the theoretical design, thereby generating potential safety hazards, as shown in fig. 5 and 6.
Disclosure of Invention
The invention aims to solve the technical problems that the stress is mutually influenced, the multi-angle connection is difficult to realize and the like when the traditional building enclosure is connected with a main body structure, and provides a building enclosure connecting system.
The invention adopts the following technical scheme:
The utility model provides an envelope connected system, includes major structure, transition support and envelope, the one end of transition support with major structure fixed connection, be equipped with rather than fixed connection's connecting plate on the transition support, envelope's one end with form between the connecting plate along the two sliding connection structure that can produce relative displacement in the deformation direction.
The side of the transition support is provided with at least two connecting plates forming an included angle, the connecting plates are perpendicular to the side of the transition support, one connecting plate is provided with a fixing pin shaft hole in a forming mode, the sliding connection structure is a strip pin shaft hole formed in the rest connecting plates, and the enclosure structure is connected with the corresponding connecting plates through pin shafts.
The support plate is characterized in that two support plates which are arranged in parallel are arranged at the connecting end of the enclosure structure, a clamping gap is formed between the two support plates, the size of the clamping gap is slightly larger than the plate thickness of the connecting plate, corresponding connecting pin holes are formed in the two support plates, the connecting plate is arranged in the clamping gap, and the transition support is connected with the enclosure structure through a pin shaft.
Or preferably, the side surface of the transition support is provided with at least two connecting plates forming an included angle, the connecting plates are arranged perpendicular to the side surface of the transition support, each connecting plate comprises a first connecting plate and a second connecting plate which are arranged in parallel, a clamping gap is formed between the first connecting plate and the second connecting plate, and corresponding connecting pin holes are formed in the first connecting plate and the second connecting plate; one end of the enclosure structure is provided with a supporting plate, the sliding connection structure is a strip pin shaft hole formed in the supporting plate, the size of the clamping gap is slightly larger than the plate thickness of the supporting plate, and the supporting plate is positioned in the clamping gap and is connected with the transition support and the enclosure structure through a pin shaft.
The long axis direction of the long pin shaft hole is consistent with the deformation direction of the enclosure structure.
Further preferably, a pin shaft sliding block penetrates through the long pin shaft hole, a through hole for penetrating through a pin shaft is formed in the pin shaft sliding block, and the pin shaft sliding block is in sliding connection with the long pin shaft hole.
The two ends of the pin shaft sliding block are arranged flush with the connecting plate.
The section of the pin shaft sliding block perpendicular to the hole depth direction of the strip pin shaft hole is of a square, rectangular or elliptic structure.
The transition support is in a cylindrical, square or rectangular cylinder structure.
The technical scheme of the invention has the following advantages:
A. The enclosure structure connecting system provided by the invention has the advantages of no influence of deformation of a main body structure, slip and rotation, and suitability for complex modeling, and the temperature stress generated between the main body structure and the enclosure structure is eliminated by forming the sliding connecting structure capable of generating relative displacement along the deformation directions of the main body structure and the connecting plate between one end of the enclosure structure and the connecting plate, so that the safety performance of the enclosure structure is improved.
B. according to the invention, the plurality of connecting plates are arranged on the transition support, the plurality of connecting plates can be arranged around the transition support, the enclosure structure can absorb the longitudinal deformation and errors of the main structure and the enclosure structure through the long round holes arranged on the connecting plates, and meanwhile, the enclosure structure can absorb the vertical deformation and errors of the main structure by adopting the rotatable hinged joint form of the pin shaft.
C. according to the invention, the pin shaft sliding block is arranged in the strip pin shaft hole of the connecting plate or the supporting plate positioned in the clamping gap, so that the pin shaft is prevented from being in line contact with the connecting plate or the supporting plate in the long round hole, and the stress safety performance of the enclosure structure is ensured.
D. for complex hyperbolic or multi-curved modeling projects, when the relative angle of the enclosure structure and the main body structure is a change value, the invention can meet the multi-angle rotation without affecting the safety performance of the structure, thereby realizing the fitting and smooth coverage of roof systems, skylight systems and the like on complex curved surface modeling, ensuring the design appearance and avoiding the problems of ponding, abrupt change and the like.
E. the connecting system provided by the invention occupies a small space, and can realize the situation that a plurality of building enclosures are arranged on the same main structure connecting point, so that the arrangement is flexible.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the embodiments will be briefly described, and it will be apparent that the drawings in the following description are some embodiments of the present invention and that other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art enclosure connection system (weld configuration);
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic diagram of a prior art enclosure connection system (bolt structure);
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a schematic view of a bevel weld construction provided in the prior art;
FIG. 6 is a schematic view of a prior art skew bolt securing arrangement;
FIG. 7 is a schematic diagram of an axial measurement structure of an enclosure connection system provided by the present invention;
FIG. 8 is a front view of an enclosure connection system provided by the present invention;
FIG. 9 is a schematic left-hand view of the structure shown in FIG. 8;
FIG. 10 is a top view of the structure of FIG. 8;
FIG. 11 is a schematic view of a body structure and transition support connection structure;
FIG. 12 is a schematic view of a connection structure with multiple enclosures;
FIG. 13 is a schematic view of the enclosure in a rotated state;
Fig. 14 is a schematic structural view of another embodiment provided by the present invention.
Reference numerals illustrate:
1-body structure
2-Transition support
21-Connecting plate
211-First connection plate, 212-second connection plate
3-Enclosure structure
31-Support plate
4-Pin shafts; 5-a pin shaft sliding block; 6, welding; 7-supporting; 8-bolt
A-fixing the axle hole; b-a strip pin shaft hole; c-clamping gap; d-connecting pin hole
E-via holes.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 7 and 8, the invention provides an enclosure structure connecting system, which comprises a main body structure 1, a transition support 2 and an enclosure structure 3, wherein one end of the transition support 2 is fixedly connected with the main body structure 1, a connecting plate 21 fixedly connected with the transition support 2 is arranged on the transition support 2, and a sliding connection structure capable of generating relative displacement along the deformation direction of the two is formed between one end of the enclosure structure 3 and the connecting plate 21. The invention has the advantages of no influence of deformation of the main body structure, slip and rotation, and suitability for complex modeling, and by forming the sliding connection structure between one end of the enclosure structure and the connecting plate, which can generate relative displacement along the deformation direction of the two structures, the temperature stress generated between the main body structure and the enclosure structure is eliminated, the safety performance of the enclosure structure is improved, and meanwhile, the enclosure structure connecting system is ensured to have excellent stress performance.
As shown in fig. 7 and 8, at least two connecting plates 21 forming an included angle may be disposed on a side surface of the transition support 2, two connecting plate structures disposed at 180 degrees are disposed in the figure, the connecting plates 21 are disposed perpendicular to the side surface of the transition support 2, a fixing pin shaft hole a is formed on one connecting plate 21, as shown in fig. 11, a sliding connection structure is a strip pin shaft hole B formed on the other connecting plate 21, and the enclosure structure 3 is connected with the corresponding connecting plate 21 through pin shafts 4, as shown in fig. 9 and 10.
As shown in fig. 7 and 10, in one embodiment of the present invention, two parallel support plates 31 are disposed at the connection end of the enclosure structure 3, a clamping gap C is formed between the two support plates 31, the size of the clamping gap C is slightly larger than the plate thickness of the connecting plate 21, corresponding connecting pin holes D are formed on the two support plates 31, the connecting plate 21 is disposed in the clamping gap C, and the transition support 2 is connected with the enclosure structure 3 through a pin shaft 4. According to the invention, a plurality of connecting plates can be arranged on the transition support, and a plurality of connecting plates can be arranged around the transition support, as shown in fig. 12, 3 connecting plate structures are arranged on the side surface of the transition support, and the support structure can absorb the longitudinal deformation and errors of the main structure and the support structure through the long round holes arranged on the connecting plates, and meanwhile, the support structure can absorb the vertical deformation and errors of the main structure by adopting the rotatable hinged node form of the pin shaft.
As shown in fig. 14, the present invention provides an enclosure connection system with another structure, wherein at least two connection plates 21 forming an included angle are arranged on the side surface of a transition support 2, the connection plates 21 are arranged perpendicular to the side surface of the transition support 2, each connection plate 21 comprises a first connection plate 211 and a second connection plate 212 which are arranged in parallel, a clamping gap C is formed between the first connection plate 211 and the second connection plate 212, and corresponding connection pin holes D are formed on the first connection plate 211 and the second connection plate 212; the connecting end of the enclosure structure 3 is provided with a supporting plate 31, the sliding connection structure is a strip pin shaft hole B formed on the supporting plate 31, the size of the clamping gap C is slightly larger than the plate thickness of the supporting plate 31, the supporting plate 31 is positioned in the clamping gap C, the pin shaft 4 sequentially penetrates through the first connecting plate, the supporting plate and the second connecting plate and is locked through nuts, and rotatable connection of the transition support 2 and the enclosure structure 3 is realized.
The rotation connection mode between the connection plate and the support plate is not limited to the above two structures, and any structure capable of realizing the relative displacement sliding between the connection plate 21 and the support plate 31 falls within the protection scope of the present invention.
The long axis direction of the strip pin shaft hole B is consistent with the deformation direction of the enclosure structure 3. Of course, other structural forms of the elongated pin shaft hole such as curves can also be adopted, and the detailed description is omitted here.
In order to avoid the line contact of a pin shaft in a slotted hole and a connecting plate or a supporting plate and ensure the stress safety performance of an enclosure structure, a pin shaft sliding block 5 is arranged in a strip pin shaft hole of the connecting plate or the supporting plate positioned in a clamping gap, a through hole E for penetrating a pin shaft 4 is arranged in the pin shaft sliding block 5, and the pin shaft sliding block 5 and the strip pin shaft hole B form sliding connection; the section of the pin shaft sliding block 5 perpendicular to the hole depth direction of the strip pin shaft hole B is in a square, rectangular or oval structure, and the upper end face and the lower end face of the pin shaft sliding block 5 are respectively in sliding connection with the upper inner side face and the lower inner side face of the strip pin shaft hole B.
For complex hyperbolic or multi-curved modeling projects, when the relative angle between the enclosure structure 3 and the main body structure 1 is a variable value, as shown in fig. 13, the invention can meet the multi-angle rotation under the premise of not influencing the safety performance of the structure, thereby realizing the fitting and smooth coverage of a roof system, a skylight system and the like on the complex curved surface modeling, ensuring the design appearance and avoiding the problems of ponding, mutation and the like.
The connecting system provided by the invention occupies a small space, and can realize the situation that a plurality of building enclosures are arranged on the same main structure connecting point, so that the arrangement is flexible.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.
Claims (3)
1. The building enclosure connecting system comprises a main body structure (1), a transition support (2) and a building enclosure (3), wherein one end of the transition support (2) is fixedly connected with the main body structure (1), and the building enclosure connecting system is characterized in that a connecting plate (21) fixedly connected with the transition support is arranged on the transition support (2), and a sliding connecting structure capable of generating relative displacement along deformation directions of the two ends of the building enclosure (3) and the connecting plate (21) is formed between the two ends;
the side of the transition support (2) is provided with at least two connecting plates (21) forming an included angle, the connecting plates (21) are perpendicular to the side of the transition support (2), one connecting plate (21) is provided with a fixing pin shaft hole (A), the sliding connection structure is a strip pin shaft hole (B) formed on the other connecting plates (21), and the enclosure structures (3) are respectively connected with the corresponding connecting plates (21) through pin shafts (4);
The connecting end of the enclosure structure (3) is provided with two support plates (31) which are arranged in parallel, a clamping gap (C) is formed between the two support plates (31), the size of the clamping gap (C) is slightly larger than the plate thickness size of the connecting plate (21), corresponding connecting pin holes (D) are formed in the two support plates (31), the connecting plate (21) is arranged in the clamping gap (C), and the transition support (2) is connected with the enclosure structure (3) through a pin shaft (4); a pin shaft sliding block (5) penetrates through the long pin shaft hole (B), a through hole (E) for penetrating through the pin shaft (4) is formed in the pin shaft sliding block (5), and the pin shaft sliding block (5) and the long pin shaft hole (B) are in sliding connection;
The transition support (2) is provided with at least two connecting plates (21) forming an included angle on the side face, the connecting plates (21) are perpendicular to the side face of the transition support (2), each connecting plate (21) comprises a first connecting plate (211) and a second connecting plate (212) which are arranged in parallel, a clamping gap (C) is formed between the first connecting plate (211) and the second connecting plate (212), and corresponding connecting pin holes (D) are formed in the first connecting plate (211) and the second connecting plate (212); one end of the enclosure structure (3) is provided with a supporting plate (31), the sliding connection structure is a strip pin shaft hole (B) formed on the supporting plate (31), the size of the clamping gap (C) is slightly larger than the plate thickness size of the supporting plate (31), the supporting plate (31) is positioned in the clamping gap (C), and the transition support (2) is connected with the enclosure structure (3) through a pin shaft (4);
The long axis direction of the long pin shaft hole (B) is consistent with the deformation direction of the enclosing structure (3);
Both ends of the pin shaft sliding block (5) are arranged flush with the connecting plate (21).
2. The building enclosure connection system according to claim 1, characterized in that the cross section of the pin slider (5) perpendicular to the hole depth direction of the elongated pin hole (B) is square, rectangular or oval.
3. The building enclosure connection system according to claim 1, wherein the transition support (2) is a cylinder, square cylinder or rectangular cylinder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565466.4A CN108560710B (en) | 2018-06-04 | 2018-06-04 | Building envelope connecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565466.4A CN108560710B (en) | 2018-06-04 | 2018-06-04 | Building envelope connecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108560710A CN108560710A (en) | 2018-09-21 |
| CN108560710B true CN108560710B (en) | 2024-04-19 |
Family
ID=63552777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810565466.4A Active CN108560710B (en) | 2018-06-04 | 2018-06-04 | Building envelope connecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108560710B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779133B (en) * | 2020-07-16 | 2021-12-03 | 东营鸿圣绿建装配式建筑科技有限公司 | Multifunctional steel structure and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003172044A (en) * | 2001-12-06 | 2003-06-20 | Sugimoto Kenchiku Kenkyusho:Kk | Base isolation device |
| CN203129329U (en) * | 2012-12-28 | 2013-08-14 | 江河创建集团股份有限公司 | Hyperbolic changeable point-supporting three-dimensional universal adjustable support |
| CN103806370A (en) * | 2014-02-12 | 2014-05-21 | 郑州市市政工程总公司 | Structure for preventing steel box girder from overturning |
| CN103898979A (en) * | 2014-04-15 | 2014-07-02 | 中国建筑设计研究院 | Pin shaft support component capable of rotating and sliding, pin shaft support and spatial structure system |
| WO2018040181A1 (en) * | 2016-08-30 | 2018-03-08 | 何少敦 | Locking device and elbow supporting device for use in vertebral body stretching bed made using same |
| CN208309808U (en) * | 2018-06-04 | 2019-01-01 | 森特士兴集团股份有限公司 | A kind of building enclosure connection system |
-
2018
- 2018-06-04 CN CN201810565466.4A patent/CN108560710B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003172044A (en) * | 2001-12-06 | 2003-06-20 | Sugimoto Kenchiku Kenkyusho:Kk | Base isolation device |
| CN203129329U (en) * | 2012-12-28 | 2013-08-14 | 江河创建集团股份有限公司 | Hyperbolic changeable point-supporting three-dimensional universal adjustable support |
| CN103806370A (en) * | 2014-02-12 | 2014-05-21 | 郑州市市政工程总公司 | Structure for preventing steel box girder from overturning |
| CN103898979A (en) * | 2014-04-15 | 2014-07-02 | 中国建筑设计研究院 | Pin shaft support component capable of rotating and sliding, pin shaft support and spatial structure system |
| WO2018040181A1 (en) * | 2016-08-30 | 2018-03-08 | 何少敦 | Locking device and elbow supporting device for use in vertebral body stretching bed made using same |
| CN208309808U (en) * | 2018-06-04 | 2019-01-01 | 森特士兴集团股份有限公司 | A kind of building enclosure connection system |
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| Publication number | Publication date |
|---|---|
| CN108560710A (en) | 2018-09-21 |
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Address after: 100176 Building No. 20 BDA International Business Avenue, Daxing Economic and Technological Development Zone, Beijing Applicant after: CENTER INT GROUP Co.,Ltd. Address before: 100176 Building No. 20 BDA International Business Avenue, Daxing Economic and Technological Development Zone, Beijing Applicant before: CENTER INT GROUP Co.,Ltd. |
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