CN111456236B - Method for connecting light steel beam and steel column - Google Patents
Method for connecting light steel beam and steel column Download PDFInfo
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- CN111456236B CN111456236B CN202010371419.3A CN202010371419A CN111456236B CN 111456236 B CN111456236 B CN 111456236B CN 202010371419 A CN202010371419 A CN 202010371419A CN 111456236 B CN111456236 B CN 111456236B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 170
- 239000010959 steel Substances 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 238000003466 welding Methods 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
-
- 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
- E04B2001/2418—Details of bolting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a method for connecting a light steel beam and a steel column, which adopts a special vibration isolation connecting structure and comprises the following specific construction steps: firstly, welding a steel plate on the top of a steel column, and welding a support piece on a web plate of the steel column; secondly, symmetrically welding a lower elastic plate on the upper surface of the lower flange plate of the light steel beam, and symmetrically welding an upper elastic plate on the lower surface of the upper flange plate of the light steel beam; thirdly, hanging the light steel beam on a connecting steel plate, and connecting the upper elastic plate, the lower elastic plate and the connecting steel plate together by using a connecting screw rod; fourthly, an elastic pad is arranged between the lower flange plate of the light steel beam and the connecting steel plate, and the connecting screw rod and the connecting steel plate are fastened together by a nut; and finally, fixedly connecting the lower flange plate of the light steel beam, the elastic cushion and the connecting steel plate together. The vibration isolation connecting structure has the advantages of reasonable design, ingenious structure, simple construction method, good vibration isolation effect, high safety and reduction of the probability of safety accidents.
Description
Technical Field
The invention relates to the field of steel structure buildings, in particular to a method for connecting a light steel beam and a steel column.
Background
The steel structure building is a novel building system, replaces the traditional reinforced concrete with steel plates and section steel, has the advantages of higher strength, better shock resistance, short construction period, reusability, green environment and the like, and is widely applied to industrial buildings and civil buildings, such as steel structure industrial plants.
A plurality of existing large steel structure industrial plants usually utilize a crane to hoist workpieces and the like, vibration generated in the working process of the crane can greatly affect the connection nodes of steel beams and steel columns, meanwhile, due to the fact that the rigidity of light steel beams is crossed at the bottom, the influence of live loads is large (particularly the multi-angle frequent action of wind loads), vibration is caused to frequently occur at the connection positions of the steel beams and the steel columns, connecting bolts at the connection positions of the steel beams and the steel columns are further caused to be loosened, welding seams at the connection positions are brittle, and great potential safety hazards exist.
In order to solve the problems, the bearing capacity of a connecting joint is generally improved by increasing the diameter of a connecting bolt and a connecting welding seam in actual construction. However, the connection mode is rigid connection, so that the construction cost of the connection node is increased, the vibration isolation effect is not obvious, and the vibration problem of the node cannot be fundamentally solved.
Disclosure of Invention
The invention aims to provide a method for connecting a light steel beam and a steel column.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a method for connecting a light steel beam and a steel column, which adopts a special vibration isolation connecting structure and comprises the following specific construction steps:
firstly, horizontally welding a connecting steel plate on the top of a steel column, and symmetrically welding supporting pieces for supporting the connecting steel plate on a web plate of the steel column;
secondly, symmetrically welding a lower elastic plate on the upper surface of the lower flange plate of the light steel beam, symmetrically welding an upper elastic plate on the lower surface of the upper flange plate of the light steel beam, and enabling the upper elastic plate and the lower elastic plate to be vertically symmetrical;
thirdly, hanging the light steel beam on a connecting steel plate, connecting the upper elastic plate, the lower elastic plate and the connecting steel plate together by using a connecting screw rod, and fastening the upper elastic plate and the lower elastic plate by using nuts respectively;
fourthly, an elastic pad is arranged between the lower flange plate of the light steel beam and the connecting steel plate, and the connecting screw rod and the connecting steel plate are fastened together by a nut; and finally, fixedly connecting the lower flange plate of the light steel beam, the elastic cushion and the connecting steel plate together by using a connecting bolt to finish the connection operation of the light steel beam and the steel column.
The vibration isolation connecting structure comprises an expansion connecting part welded at the top of the steel column and a vibration isolation connecting part used for connecting the expansion connecting part and the light steel beam together, wherein the expansion connecting part comprises a connecting steel plate horizontally welded at the top of the steel column and supporting pieces symmetrically welded on two side surfaces of a web plate of the steel column; the vibration isolation connecting part comprises a first vibration isolation connecting piece and a second vibration isolation connecting piece which are used for fixedly connecting the connecting steel plate and the light steel beam together, and the deformation directions of the first vibration isolation connecting piece and the second vibration isolation connecting piece are opposite.
The first vibration isolation connecting piece comprises an elastic pad arranged between the connecting steel plate and the lower flange plate of the light steel beam, the elastic pad and the connecting steel plate are fixedly connected through a connecting bolt.
The deformation of the elastic cushion is 10 mm-100 mm.
The second vibration isolation connecting piece comprises a lower elastic plate and an upper elastic plate, wherein the lower elastic plate is symmetrically and fixedly connected to the lower flange plate of the light steel beam, the upper elastic plate is symmetrically and vertically symmetrical to the lower elastic plate, and the upper elastic plate, the lower elastic plate and the connecting steel plate are connected into a whole through a connecting screw rod.
The upper elastic plate and the lower elastic plate have the same structure and are of an integrated Z-shaped structure formed by connecting an upper horizontal section, a lower horizontal section and a middle inclined section.
The upper elastic plate and the lower elastic plate are installed in opposite directions.
The supporting piece comprises a supporting plate horizontally welded on the steel column web and a supporting web vertically welded on the steel column web, the top of the supporting web is fixedly connected with the connecting steel plate, and the bottom of the supporting web is fixedly connected with the supporting plate.
The vibration isolation connecting structure has the advantages of reasonable design, ingenious structure, simple construction method, good vibration isolation effect, high safety and reduction of the probability of safety accidents. Specifically, the direction of the stress deformation of the elastic cushion between the light steel beam and the steel column is opposite to the direction of the pre-pressure compression deformation between the upper elastic plate and the lower elastic plate, so that the elastic input can be isolated, the vibration isolation effect is further achieved, the personal safety of operators in a plant is effectively protected, and the probability of accidental safety accidents is effectively reduced.
Drawings
Fig. 1 is a schematic structural view of the vibration isolating joint structure of the present invention.
Fig. 2 is a top view of the light steel beam and the second vibration isolating connector of fig. 1.
Fig. 3 is an exploded view of the vibration isolating attachment structure of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, the method for connecting a light steel beam and a steel column according to the present invention employs a dedicated vibration isolation connection structure, the vibration isolation connection structure includes an enlarged connection portion welded to an upper portion of the steel column 1 and a vibration isolation connection portion for fixedly connecting the enlarged connection portion and the light steel beam 2 together, the enlarged connection portion includes a connection steel plate 3.1 horizontally welded to a top of the steel column 1 and support members symmetrically welded to both sides of a web of the steel column 1 for supporting the connection steel plate 3.1, the support members include a support plate 3.2 horizontally welded to the web of the steel column 1 and a support web 3.3 vertically welded to the web of the steel column 1, a top of the support web 3.3 is welded to the connection steel plate 3.1, and a bottom of the support web 3.3 is welded to the support plate 3.
As shown in fig. 1 to 3, the vibration isolation connecting part includes a first vibration isolation connecting part and a second vibration isolation connecting part for fixedly connecting the steel plate 3.1 and the light steel beam 2, and the deformation directions of the first vibration isolation connecting part and the second vibration isolation connecting part are opposite; the first vibration isolation connecting piece comprises an elastic pad 4.1 arranged between a connecting steel plate 3.1 and a lower flange plate of the light steel beam 2 (the deformation of the elastic pad 4.1 is within the range of 10 mm-100 mm, preferably 10 mm-40 mm), and the lower flange plate of the light steel beam 2, the elastic pad 4.1 and the connecting steel plate 3.1 are fixedly connected through a connecting bolt 4.2 (nuts on the connecting bolt 4.2 are not required to be fastened);
as shown in fig. 1, the second vibration isolation connecting piece comprises a lower elastic plate 5.1 symmetrically fixedly connected to the lower flange plate of the light steel beam 2 and an upper elastic plate 5.2 symmetrically arranged on the upper flange plate of the light steel beam 2, the upper elastic plate 5.2 and the lower elastic plate 5.1 are vertically symmetrical and have the same structure, and the upper elastic plate 5.2 and the lower elastic plate 5.1 are of an integrated Z-shaped structure formed by connecting an upper horizontal section, a lower horizontal section and a middle inclined section;
as shown in fig. 1, the lower elastic plate 5.1 extends obliquely upward from the lower flange plate of the light steel beam 2, and the upper elastic plate 5.2 extends obliquely downward from the upper flange plate of the light steel beam 2, i.e. the safe directions of the upper elastic plate 5.2 and the lower elastic plate 5.1 are opposite, so as to ensure that the deformation direction between the upper elastic plate 5.2 and the lower elastic plate 5.1 is opposite to the deformation direction of the elastic pad 4.1;
the upper elastic plate 5.2 and the lower elastic plate 5.1 which correspond up and down are fastened and connected with the connecting steel plate 3.1 through the connecting screw rod 5.3, the upper elastic plate 5.2 is fastened and connected with the connecting screw rod 5.3 through the two nuts A, the lower elastic plate 5.1 is fastened and connected with the connecting screw rod 5.3 through the two nuts B, and the connecting steel plate 3.1 is fastened and connected with the connecting screw rod 5.3 through the nut C, so that the elastic connection of the light steel beam 2 and the steel column 1 is realized.
The elastic stress deformation direction of the upper elastic plate 5.2 and the lower elastic plate 5.1 is opposite to the stress deformation direction of the elastic cushion 4.1, so that the force generated by vibration can be mutually offset, the vibration isolation effect is good, the safety is high, the probability of steel beam falling off is effectively reduced, and the life safety of operators in a factory building is guaranteed.
The invention relates to a method for connecting a light steel beam and a steel column, which comprises the following specific construction steps:
firstly, welding a connecting steel plate 3.1 at the top of a steel column 1 horizontally, welding supporting plates 3.2 at two symmetrical sides of a web plate of the steel column 1, welding supporting web plates 3.3 at the web plate of the steel column 1 between the supporting plates 3.2 and the connecting steel plate 3.1 symmetrically, welding the bottom of each supporting web plate 3.3 and the corresponding supporting plate 3.2 into a whole, and welding the top of each supporting web plate 3.3 and the connecting steel plate 3.1 into a whole;
secondly, welding lower elastic plates 5.1 on the upper surfaces of the lower flange plates of the light steel beams 2 in a bilateral symmetry mode, wherein each lower elastic plate 5.1 extends upwards from the bottom of the lower flange plate of the light steel beam 2 in an inclined mode; upper elastic plates 5.2 are welded on the lower surface of the upper flange plate of the light steel beam 2 in a bilateral symmetry manner, each upper elastic plate 5.2 extends from the upper flange plate of the light steel beam 2 in a downward inclined manner, and the upper elastic plates 5.2 and the lower elastic plates 5.1 are installed in an up-down symmetrical manner (namely, the installation directions of the upper elastic plates and the lower elastic plates are opposite), as shown in fig. 1 specifically;
thirdly, the light steel beam 2 is hung on the connecting steel plate 3.1, the upper elastic plate 5.2, the lower elastic plate 5.1 and the connecting steel plate 3.1 are connected together by the connecting screw rod 5.3 in a penetrating way, then the upper elastic plate 5.2 and the connecting screw rod 5.3 are fastened together by the nut A, and the lower elastic plate 5.1 and the connecting screw rod 5.3 are fastened together by the nut B, so that the elasticity between the upper elastic plate 5.2 and the lower elastic plate 5.1 which correspond to each other up and down is reduced, and the specific structure is shown in figure 1;
fourthly, an elastic cushion 4.1 is arranged between the lower flange plate of the light steel beam 2 and the connecting steel plate 3.1, and a connecting screw 5.3 and the connecting steel plate 3.1 are fastened together by a nut C; and finally, connecting the lower flange plate of the light steel beam 2, the elastic pad 4.1 and the connecting steel plate 3.1 together by using the connecting bolt 4.2 (the nut of the connecting bolt 4.2 only needs to be fixed slightly and does not need to be fastened), and then the connection operation of the light steel beam 2 and the steel column 1 can be completed.
Thirdly, the light steel beam 2 is hung on the connecting steel plate 3.1, the upper elastic plate 5.2, the lower elastic plate 5.1 and the connecting steel plate 3.1 are connected together by the connecting screw rod 5.3 in a penetrating way, then the upper elastic plate 5.2 and the connecting screw rod 5.3 are fastened together by the nut A, and the lower elastic plate 5.1 and the connecting screw rod 5.3 are fastened together by the nut B, so that the elasticity between the upper elastic plate 5.2 and the lower elastic plate 5.1 which correspond to each other up and down is reduced, and the specific structure is shown in figure 1;
fourthly, an elastic cushion 4.1 is arranged between the lower flange plate of the light steel beam 2 and the connecting steel plate 3.1, and a connecting screw 5.3 and the connecting steel plate 3.1 are fastened together by a nut C; and finally, connecting the lower flange plate of the light steel beam 2, the elastic pad 4.1 and the connecting steel plate 3.1 together by using the connecting bolt 4.2 (the nut of the connecting bolt 4.2 only needs to be fixed slightly and does not need to be fastened), and then the connection operation of the light steel beam 2 and the steel column 1 can be completed.
In the description of the present invention, it should be noted that the terms "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (3)
1. A method for connecting a light steel beam and a steel column is characterized in that: a special vibration isolation connecting structure is adopted, the vibration isolation connecting structure comprises an enlarged connecting part welded on the top of a steel column and a vibration isolation connecting part used for connecting the enlarged connecting part and a light steel beam together, and the enlarged connecting part comprises a connecting steel plate horizontally welded on the top of the steel column and supporting pieces symmetrically welded on two side surfaces of a web plate of the steel column; the vibration isolation connecting part comprises a first vibration isolation connecting piece and a second vibration isolation connecting piece which are used for fixedly connecting the connecting steel plate and the light steel beam together, and the deformation directions of the first vibration isolation connecting piece and the second vibration isolation connecting piece are opposite;
the first vibration isolation connecting piece comprises an elastic pad arranged between the connecting steel plate and the lower flange plate of the light steel beam, the elastic pad and the connecting steel plate are fixedly connected through a connecting bolt;
the second vibration isolation connecting piece comprises a lower elastic plate symmetrically fixedly connected to the lower flange plate of the light steel beam and an upper elastic plate symmetrically fixedly connected to the upper flange plate of the light steel beam, the upper elastic plate and the lower elastic plate are vertically symmetrical, and the upper elastic plate, the lower elastic plate and the connecting steel plate are connected into a whole through a connecting screw rod;
the upper elastic plate and the lower elastic plate have the same structure and are of an integrated Z-shaped structure formed by connecting an upper horizontal section, a lower horizontal section and a middle inclined section, and the mounting directions of the upper elastic plate and the lower elastic plate are opposite;
the method for connecting the light steel beam and the steel column comprises the following specific construction steps:
firstly, horizontally welding a connecting steel plate on the top of a steel column, and symmetrically welding supporting pieces for supporting the connecting steel plate on a web plate of the steel column;
secondly, symmetrically welding a lower elastic plate on the upper surface of the lower flange plate of the light steel beam, symmetrically welding an upper elastic plate on the lower surface of the upper flange plate of the light steel beam, and enabling the upper elastic plate and the lower elastic plate to be vertically symmetrical;
thirdly, hanging the light steel beam on a connecting steel plate, connecting the upper elastic plate, the lower elastic plate and the connecting steel plate together by using a connecting screw rod, and fastening the upper elastic plate and the lower elastic plate by using nuts respectively;
fourthly, an elastic pad is arranged between the lower flange plate of the light steel beam and the connecting steel plate, and the connecting screw rod and the connecting steel plate are fastened together by a nut; and finally, fixedly connecting the lower flange plate of the light steel beam, the elastic cushion and the connecting steel plate together by using a connecting bolt to finish the connection operation of the light steel beam and the steel column.
2. The method of connecting a light steel beam and a steel column according to claim 1, wherein: the deformation of the elastic cushion is 10 mm-100 mm.
3. The method of connecting a light steel beam and a steel column according to claim 1, wherein: the supporting piece comprises a supporting plate horizontally welded on the steel column web and a supporting web vertically welded on the steel column web, the top of the supporting web is fixedly connected with the connecting steel plate, and the bottom of the supporting web is fixedly connected with the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371419.3A CN111456236B (en) | 2020-05-06 | 2020-05-06 | Method for connecting light steel beam and steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371419.3A CN111456236B (en) | 2020-05-06 | 2020-05-06 | Method for connecting light steel beam and steel column |
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| Publication Number | Publication Date |
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| CN111456236A CN111456236A (en) | 2020-07-28 |
| CN111456236B true CN111456236B (en) | 2021-04-30 |
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| CN207003231U (en) * | 2017-06-20 | 2018-02-13 | 深圳市第一建筑工程有限公司 | A kind of steel column girder steel connector |
| CN108222251A (en) * | 2017-12-26 | 2018-06-29 | 江苏省冶金设计院有限公司 | A kind of rigid connection node of beam column of steel structure |
| CN207934208U (en) * | 2018-03-05 | 2018-10-02 | 内蒙古工大建筑设计有限责任公司 | A kind of frame node structure of building construction |
| CN108729548A (en) * | 2018-07-11 | 2018-11-02 | 远象建设集团有限公司 | A kind of steel construction davit node of two kinds of arc dissipative cells of band |
| CN208981645U (en) * | 2018-10-23 | 2019-06-14 | 济宁职业技术学院 | A kind of building structure wind-brace column |
| CN209585274U (en) * | 2019-02-15 | 2019-11-05 | 刘学永 | A kind of construction structure shockproof node |
| CN209686579U (en) * | 2019-01-21 | 2019-11-26 | 甘肃第四建设集团有限责任公司 | A steel structure anti-seismic beam-column connection structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PE20181371A1 (en) * | 2015-12-09 | 2018-08-28 | Univ Brigham Young | BEAM-TO-COLUMN CONNECTION SYSTEMS AND MOMENT-RESISTANT FRAMES THAT INCLUDE THEM |
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2020
- 2020-05-06 CN CN202010371419.3A patent/CN111456236B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220786A (en) * | 2010-04-15 | 2011-10-19 | 沈阳铝镁设计研究院有限公司 | Hinge connection structure and method for supporting steel columns on steel beams |
| CN207003231U (en) * | 2017-06-20 | 2018-02-13 | 深圳市第一建筑工程有限公司 | A kind of steel column girder steel connector |
| CN108222251A (en) * | 2017-12-26 | 2018-06-29 | 江苏省冶金设计院有限公司 | A kind of rigid connection node of beam column of steel structure |
| CN207934208U (en) * | 2018-03-05 | 2018-10-02 | 内蒙古工大建筑设计有限责任公司 | A kind of frame node structure of building construction |
| CN108729548A (en) * | 2018-07-11 | 2018-11-02 | 远象建设集团有限公司 | A kind of steel construction davit node of two kinds of arc dissipative cells of band |
| CN208981645U (en) * | 2018-10-23 | 2019-06-14 | 济宁职业技术学院 | A kind of building structure wind-brace column |
| CN209686579U (en) * | 2019-01-21 | 2019-11-26 | 甘肃第四建设集团有限责任公司 | A steel structure anti-seismic beam-column connection structure |
| CN209585274U (en) * | 2019-02-15 | 2019-11-05 | 刘学永 | A kind of construction structure shockproof node |
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| CN111456236A (en) | 2020-07-28 |
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