CN114922290A - Complicated node and steel column with complicated node - Google Patents
Complicated node and steel column with complicated node Download PDFInfo
- Publication number
- CN114922290A CN114922290A CN202210659062.8A CN202210659062A CN114922290A CN 114922290 A CN114922290 A CN 114922290A CN 202210659062 A CN202210659062 A CN 202210659062A CN 114922290 A CN114922290 A CN 114922290A
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- steel column
- semicircular
- complex
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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
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- 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
- E04B2001/2439—Adjustable connections, e.g. using elongated slots or threaded adjustment elements
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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
- E04B2001/2466—Details of the elongated load-supporting parts
- E04B2001/2469—Profile with an array of connection holes
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B2001/5868—Hinged connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a complex node which comprises a connecting seat and a connecting piece, wherein the connecting seat consists of a vertical plate and a semicircular plate, and the connecting piece consists of a semicircular end, a transition section and a connecting end; a first central hole is formed in the circle center of the semicircular plate, and a positioning groove is formed in the semicircular surface of the semicircular plate; the semicircular end consists of two first connecting pieces which are connected to the transition section in parallel, a second center hole is formed in the circle center of a semicircle at one end, far away from the transition section, of the first connecting piece, a positioning hole is formed between the second center hole and the transition section, the first center hole is aligned with the second center hole through the first center hole, the connecting seat and the connecting piece are connected through a hinge, and a bolt penetrates through the positioning hole and is fixed with the positioning groove. Meanwhile, a steel column with complex joints is also provided, and comprises a steel column and complex joints. The invention has the advantages of simple structure and strong applicability; the device can be manufactured in factories, is convenient to install on site, and has good environmental protection effect; the positioning device has the advantages of positioning, bearing axial force, transverse force and torsional force and the like.
Description
Technical Field
The invention belongs to the technical field of steel structures, and particularly relates to a complex node and a steel column with the complex node.
Background
In the steel construction field, between stand and the stand, between crossbeam and the crossbeam, perhaps need set up the support column between stand and the crossbeam to improve the stable form and the fastness of steel construction, satisfy vibrations requirements such as bearing and earthquakes. In traditional steel construction, the support column adopts field weld's mode with being connected of stand or crossbeam, and this kind of mode is more nimble, can satisfy the connection of various different angles or inclination, but field weld has welding residual stress, and is inefficient, the unable scheduling problem of guaranteeing of construction progress and quality.
With the development of the steel structure technology, the support column and the upright column or the cross beam are connected together in a hinged connection mode, the existing hinge mode can meet the requirements of different angles and slopes, and field welding is not needed, but the existing hinge mode only completes axial force, and cannot meet the requirements of transverse force or torsional force and the like.
Disclosure of Invention
Aiming at the problems existing in the connection of support columns between stand columns, between cross beams or between stand columns and cross beams in the prior art, the invention provides a complex node which is convenient to install and can meet the requirement of mechanical property, and also provides a steel column with the complex node.
In order to achieve the purpose, the invention discloses the following technical scheme:
a complex node comprises a connecting seat and a connecting piece, wherein the connecting seat is composed of a vertical plate and a semicircular plate.
The semicircular plate is semicircular, a first center hole is formed in the circle center of the semicircular plate, a positioning groove is formed in the semicircular surface of the semicircular plate, and the positioning groove is an arc-shaped groove with the first center hole as the circle center.
The connecting piece comprises semicircle end, changeover portion and link.
The semicircular end is composed of two first connecting pieces which are connected to the transition section in parallel, one end, far away from the transition section, of each first connecting piece is semicircular, a second center hole is formed in the center of the semicircular circle, a positioning hole is formed between the second center hole and the transition section, the semicircular plate is located between the two parallel first connecting pieces, the first center hole and the second center hole are aligned and hinged, the distance from the center of the positioning hole to the second center hole is equal to the radius of a central arc line of the positioning groove, and a bolt penetrates through the positioning hole and is fixed with the positioning groove.
The connecting end is composed of two second connecting pieces which are connected to the other end of the transition section in parallel and two third connecting pieces which are connected to the lower portion of the second connecting piece, the two third connecting pieces are arranged on the outer side of the second connecting piece in parallel, a first connecting hole is formed in the second connecting piece, and a second connecting hole is formed in the third connecting piece.
Preferably, at least one of the positioning grooves is located in the same side face of the semicircular plate, and the positioning groove arc is 45 °.
Preferably, a positioning block is arranged in the positioning groove, the positioning block is an arc-shaped block, and the arc center of the positioning block is the same as that of the positioning groove.
Preferably, when the positioning hole is located at any top end of the positioning groove, the positioning block is one block and located on one side of the positioning groove penetrating through the positioning groove bolt.
Preferably, when the positioning holes are located between the two top ends of the positioning groove, two positioning blocks are located on two sides of the positioning groove bolt.
According to the technical scheme, the semicircular plate is located between the two parallel first connecting plates, the first central hole is aligned with the second central hole and is hinged, the positioning groove is formed in the semicircular surface of the semicircular plate, the positioning hole is formed between the second central hole and the transition section, the distance from the circle center of the positioning hole to the second central hole is equal to the radius of the central arc line of the positioning groove, and the positioning hole is fixed with the positioning groove by penetrating a bolt through the positioning hole; the connecting end is provided with a second connecting sheet, a third connecting sheet and a supporting column which are matched, and the connecting end is fixedly connected with the supporting column through a first connecting hole and a second connecting hole by bolts. So form the connection of connecting piece and connecting seat to and the connecting piece is connected with the support column, the connecting piece through first centre bore with the hinge joint at second center can the free rotation, satisfies the adjustment of different angles, then through the fastening of the bolt that passes locating hole and constant head tank, plays the final angle of positioning connection spare (being the support column) and connecting seat and no longer changes, has and bears horizontal or torsional force, and this kind of connected mode is easy to assemble, and the site operation is efficient.
In order to show the advantages of the complex node, the invention further provides a steel column with the complex node, which comprises a steel column and a node, wherein the node is the complex node.
Preferably, at least one complex node is provided on the steel column.
Preferably, the complex nodes are arranged in pairs on the steel columns.
Preferably, the steel columns are H-shaped steel columns, and the complex nodes are fixed on the H-shaped steel columns through fixing pieces.
Preferably, the fixing piece is provided with a fixing hole, the fixing hole is provided with an internal thread, and the fixing piece is fixed on the H-shaped steel column through a bolt.
From the above-mentioned technical scheme who takes complicated node steel column, install complicated node on the steel column, accomplish being connected of steel column and support column through complicated node, finally realize being connected between steel column and the steel column, steel column and crossbeam, crossbeam and the crossbeam, and this kind of connection, can realize being connected of any angle or gradient between support column and steel column and the crossbeam, the completion has the location after connecting, can bear performance advantages such as axial, horizontal and torsional force, and this kind of connected mode is easy to assemble, the site operation is efficient.
In summary, the beneficial effects of the invention are as follows:
the structure is simple, and the applicability is strong;
the device can be manufactured in factories, is convenient to install on site, and has good environmental protection effect;
and thirdly, the positioning device has the performance advantages of positioning, bearing axial force, transverse force, torsional force and the like.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions in the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a complex node;
FIG. 2 is a schematic view of a connecting seat;
FIG. 3 is a schematic view of a connector;
FIG. 4 is a schematic view of a steel column with complex nodes;
FIG. 5 is a schematic view of connection of a complex node to a steel column;
wherein: 10. the connecting structure comprises a connecting base, 20 a connecting piece, 11 a vertical plate, 12 a semicircular plate, 101 a first central hole, 102 a positioning groove, 103 a positioning block, 21 a semicircular end, 22 a transition section, 23 a connecting end, 201 a first connecting sheet, 202 a second central hole, 203 a positioning hole, 204 a second connecting sheet, 205 a first connecting hole, 206 a third connecting sheet, 207 a second connecting hole, 30 a fixing piece, 31 a fixing hole and 40 a steel column.
Detailed Description
The complex node and the steel column with the complex node have the advantages of simple structure and strong applicability; the device can be manufactured in factories, is convenient to install on site, and has good environmental protection effect; the positioning device has the advantages of positioning, bearing axial force, transverse force and torsional force and the like.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1, the complex node provided by the present invention comprises a connecting seat 10 and a connecting member 20, wherein the connecting seat 10 is composed of a vertical plate 11 and a semicircular plate 12; the connecting piece 20 consists of a semicircular end 21, a transition section 22 and a connecting end 23; the connection of the connecting socket 10 and the connecting member 20 is realized by the connection of the semicircular plate 12 and the semicircular end 21.
As shown in fig. 2, the semicircular plate 12 is semicircular, a first central hole 101 is provided at the center of the semicircular plate 12, and a positioning groove 102 is provided in the semicircular surface of the semicircular plate 12, wherein the positioning groove 102 is an arc-shaped groove having the first central hole as the center.
As shown in fig. 1 and 3, the connector 20 is comprised of a semi-circular end 21, a transition section 22, and a connecting end 23. The semicircular end 21 consists of two first connecting pieces 201 which are connected to the transition section 22 in parallel, one end of each first connecting piece 201, which is far away from the transition section 22, is semicircular, a second central hole 202 is arranged at the center of the semicircle, and a positioning hole 203 is arranged between the second central hole 202 and the transition section 22; the connecting end 23 is composed of two second connecting pieces 204 connected to the other end of the transition section 22 in parallel and two third connecting pieces 206 connected to the upper and lower parts of the second connecting pieces 204, the two third connecting pieces 206 are arranged on the outer side of the second connecting pieces 204 in parallel, a first connecting hole 205 is arranged on the second connecting piece 204, and a second connecting hole 207 is arranged on the third connecting piece 206. The semicircular plate 12 is positioned between the two parallel first connecting pieces 21, and the first central hole is aligned with the second central hole and hinged; the distance from the center of the positioning hole 203 to the second center hole is equal to the radius of the central arc line of the positioning groove 102, that is, the center of the positioning hole 203 is on the central arc line of the positioning groove 102, the positioning hole 203 is penetrated by a bolt to be fixedly connected with the positioning groove 102, and after the angle or the inclination of the support column is determined, the bolt is fastened, so that the connecting seat 10 and the connecting piece 20 are fixed.
A second connection piece 204 and a third connection piece 206 are provided at the connection end 23, and a first connection hole 205 is provided at the second connection piece 204 and a second connection hole 207 is provided at the third connection piece 206. The web plate of the H-shaped steel support column is arranged in a space between the two second connecting pieces 204, the second connecting pieces 204 are attached to the left side and the right side of the web plate of the H-shaped steel and are fixedly connected with the web plate of the H-shaped steel through the first connecting holes 205; the third connecting piece 206 is attached to the upper and lower edges of the H-shaped steel and is fixedly connected to the upper and lower edges of the H-shaped steel through the second connecting hole 207.
As shown in fig. 1 and 2, the positioning groove 102 is used for fixing the positions of the connecting member 10 and the connecting member 20 and increasing the axial, transverse and torsional forces to which the connecting member 20 and the connecting member 10 are connected together, so that at least one positioning groove may be provided to increase the fixing and bearing force; simultaneously with constant head tank 102 setting in half-round plate 12 is same facial planes, and the radian is 45 °, its purpose is through reducing the load capacity of constant head tank 102's area assurance connecting seat 10, if constant head tank 102's area is too big, must reduce the axial, horizontal and the torsional force of the bearing of connecting seat 10.
As shown in fig. 2, the connecting seat 10 and the connecting member 20 are fixed only by the bolt passing through the positioning hole 203 and fixedly connecting with the positioning slot 102, when the connecting seat 10 and the connecting member 20 are subjected to a large lateral force, the bolt is forced to move along the positioning slot 102 around the center of the circle. Therefore, in order to improve the fixing effect of the bolt, the positioning block 103 is arranged in the positioning groove 102, the positioning block (103) is an arc-shaped block, and the arc center of the positioning block (103) is the same as that of the positioning groove (102). When the positioning hole 203 is positioned at any top end of the positioning groove 102, one positioning block 103 is arranged and positioned at one side of the bolt penetrating through the positioning groove 102; when the positioning hole 203 is positioned between the two top ends of the positioning groove 102, two positioning blocks 103 are arranged and positioned at the two sides of the bolt passing through the positioning groove 102; the size of locating piece 103 needs to be decided according to the angle of connecting seat 10 and connecting piece 20, puts into constant head tank 103 before putting into connecting piece 20 with positioning seat 10 to block the removal of bolt, promote fixed effect.
The embodiment of the invention also provides the steel column with the complex node.
As shown in fig. 4, the steel column 40 may be a column, a beam or other support for bearing force, including the steel column 40 and the complex node fixed on the steel column. The complicated node is fixed on the steel column, and the support column is connected with the complicated node on the steel column to realize being connected between stand and stand, stand and crossbeam, crossbeam and the crossbeam, play and increase between stand, crossbeam etc. fixed and stability, promote the performance of steel construction. Importantly, the steel column with the complex nodes can meet the connection of the support columns, the stand columns and the cross beams at any angle or inclination, is convenient and quick, and can bear axial force, transverse force and various torsional forces.
As shown in fig. 4, complex nodes are generally arranged on the steel column 40 in pairs, so that the steel column 40 is subjected to relatively balanced force, and the stability of the steel structure is improved.
As shown in fig. 5, when the steel column 40 is an H-shaped steel column, the complex node may be fixed to the H-shaped steel column by using a fixing member 30, a fixing hole 31 is formed in the fixing member 30, the fixing hole 31 is provided with an internal thread, and the fixing member 30 is fixed to the H-shaped steel column by using a bolt. The complex node is fixed on the steel column 40 by the fixing piece 30, so that the installation position of the complex node can be conveniently adjusted, and the complex node can be adjusted at any time according to installation requirements. In addition, the fixing piece 30 is provided with the fixing hole 31 with the internal thread, and the fixing piece is directly fastened on the steel column 40 through the bolt with the external thread, so that the fixing piece is suitable for any steel column 40 with edges, and holes or openings do not need to be formed in the steel column 40, and the problem that the performance of the steel column 40 is reduced due to the holes or the openings is avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A complex node comprises a connecting seat (10) and a connecting piece (20), and is characterized in that the connecting seat (10) consists of a vertical plate (11) and a semicircular plate (12);
the semicircular plate (12) is semicircular, a first central hole (101) is formed in the center of the semicircular plate (12), a positioning groove (102) is formed in the semicircular surface of the semicircular plate (12), and the positioning groove (102) is an arc-shaped groove taking the first central hole as the center of circle;
the connecting piece (20) consists of a semicircular end (21), a transition section (22) and a connecting end (23);
the semicircular end (21) consists of two first connecting pieces (201) which are connected to the transition section (22) in parallel, one end, far away from the transition section (22), of each first connecting piece (201) is semicircular, a second central hole (202) is formed in the center of the semicircle, a positioning hole (203) is formed between the second central hole (202) and the transition section (22), the semicircular plate (12) is located between the two parallel first connecting pieces (21), the first central hole and the second central hole are aligned and hinged, the distance from the center of the positioning hole (203) to the second central hole is equal to the radius of a central arc line of the positioning groove (102), and a bolt penetrates through the positioning hole (203) to be fixed with the positioning groove (102);
the connecting end (23) is composed of two second connecting pieces (204) which are connected to the other end of the transition section (22) in parallel and two third connecting pieces (206) which are connected to the upper portion and the lower portion of the second connecting pieces (204), the two third connecting pieces (206) are arranged on the outer side of the second connecting pieces (204) in parallel, a first connecting hole (205) is formed in the second connecting pieces (204), and a second connecting hole (207) is formed in the third connecting pieces (206).
2. The complex node according to claim 1, wherein the at least one positioning slot (102) is located in a same side of the semicircular plate (12), and wherein the positioning slot (102) arc is 45 °.
3. The complex node according to claim 1 or 2, characterized in that a block positioning block (103) is arranged in the positioning groove (102), the positioning block (103) is an arc-shaped block, and the arc center of the positioning block (103) is the same as the arc center of the positioning groove (102).
4. The complex node according to claim 3, characterized in that when the positioning hole (203) is located at any top end of the positioning slot (102), the positioning block (103) is a block located at one side of the bolt passing through the positioning slot (102).
5. The complex node according to claim 3, characterized in that when the positioning hole (203) is located between the top ends of the positioning slots (102), the positioning blocks (103) are two blocks located on both sides of the bolt passing through the positioning slots (102).
6. A steel column with complex joints, comprising a steel column (40) and a joint, wherein the joint is the complex joint according to claims 1-5.
7. The steel column with complex nodes as claimed in claim 6, wherein at least one complex node is provided on the steel column (40).
8. The steel column with complex nodes as claimed in claim 6, wherein the complex nodes are provided in pairs on the steel column (40).
9. The steel column with complex node according to any one of claims 6 to 8, wherein the steel column (40) is an H-shaped steel column, and the complex node is fixed on the H-shaped steel column through a fixing member (30).
10. The complicated node steel column as claimed in claim 9, wherein the fixing member (30) is provided with a fixing hole (31), the fixing hole (31) is internally threaded, and the fixing member (30) is fixed to the H-shaped steel column by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659062.8A CN114922290A (en) | 2022-06-10 | 2022-06-10 | Complicated node and steel column with complicated node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659062.8A CN114922290A (en) | 2022-06-10 | 2022-06-10 | Complicated node and steel column with complicated node |
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| Publication Number | Publication Date |
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| CN114922290A true CN114922290A (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210659062.8A Pending CN114922290A (en) | 2022-06-10 | 2022-06-10 | Complicated node and steel column with complicated node |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040107654A1 (en) * | 2002-12-05 | 2004-06-10 | Powell Steven D. | Pin and collar connection apparatus for use with seismic braces, seismic braces including the pin and collar connection, and methods |
| WO2012111968A2 (en) * | 2011-02-15 | 2012-08-23 | 조선대학교 산학협력단 | Displacement amplification-type seismic control system and constructing method thereof |
| CN211499454U (en) * | 2019-12-13 | 2020-09-15 | 安徽中纪建设工程有限公司 | Environment-friendly H-shaped steel |
| CN112609854A (en) * | 2020-12-08 | 2021-04-06 | 海南大学 | Energy dissipation shock attenuation enhancement mode construction structures and friction damper |
| CN113216436A (en) * | 2021-05-14 | 2021-08-06 | 洪都建设集团有限公司 | Supporting connecting piece at joint of steel supporting beam column and self-resetting SMA device |
-
2022
- 2022-06-10 CN CN202210659062.8A patent/CN114922290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040107654A1 (en) * | 2002-12-05 | 2004-06-10 | Powell Steven D. | Pin and collar connection apparatus for use with seismic braces, seismic braces including the pin and collar connection, and methods |
| WO2012111968A2 (en) * | 2011-02-15 | 2012-08-23 | 조선대학교 산학협력단 | Displacement amplification-type seismic control system and constructing method thereof |
| CN211499454U (en) * | 2019-12-13 | 2020-09-15 | 安徽中纪建设工程有限公司 | Environment-friendly H-shaped steel |
| CN112609854A (en) * | 2020-12-08 | 2021-04-06 | 海南大学 | Energy dissipation shock attenuation enhancement mode construction structures and friction damper |
| CN113216436A (en) * | 2021-05-14 | 2021-08-06 | 洪都建设集团有限公司 | Supporting connecting piece at joint of steel supporting beam column and self-resetting SMA device |
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