CN114541581B - Assembled building beam column steel structure connecting piece and construction method thereof - Google Patents
Assembled building beam column steel structure connecting piece and construction method thereof Download PDFInfo
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- CN114541581B CN114541581B CN202210289511.4A CN202210289511A CN114541581B CN 114541581 B CN114541581 B CN 114541581B CN 202210289511 A CN202210289511 A CN 202210289511A CN 114541581 B CN114541581 B CN 114541581B
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling 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
- E04B2001/2415—Brackets, gussets, joining plates
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an assembled building beam column steel structure connecting piece and a construction method thereof, comprising the following steps: the steel structure connecting piece is arranged at the joint of the supporting beam and the cross beam and is used for supporting and connecting the supporting beam and the cross beam; the sliding support angle steel is arranged at the top end of the steel structure connecting piece in a sliding manner, and right-angle edges at two sides of the sliding support angle steel are respectively propped against the support beam and the steel structure connecting piece; the beam locking assembly is arranged in the sliding support angle steel and is connected with the sliding support angle steel. According to the invention, the beam locking assembly is arranged, the double-threaded screw rod is rotated by the wrench, the nuts on the two sides are driven to move away from each other when the double-threaded screw rod rotates, the connecting plates on the two sides are pushed to move by the connecting rods on the two sides when the nuts move away from each other until the inserted rod is inserted into the insertion hole of the beam, and the mounting and fixing of a plurality of beams can be realized simultaneously through one input end, so that the mounting consistency is good.
Description
Technical Field
The invention relates to the technical field of assembled buildings, in particular to an assembled building beam column steel structure connecting piece and a construction method thereof.
Background
The assembled building is characterized by standardized design, factory production, assembled construction, integrated decoration and informatization management by taking the factory prefabricated production of components and the field assembly as a mode, integrates various business fields such as research and development design, production and manufacture, field assembly and the like, realizes a novel building production mode of sustainable development of building products with energy conservation, environmental protection and maximized full cycle value, and is the process of assembling parts according to specified technical requirements and debugging and checking to enable the parts to be qualified products. Simply stated, the process of assembling the components into a unitary body. In the prior art, the assembly type building usually needs manpower to perform hole punching and installation one by one during installation between the supporting beam and the cross beam, on one hand, the labor is relatively consumed, on the other hand, the skill of workers is limited, and although the consistency is higher during assembly type production, the assembly type consistency is lower, so that the simplification of the installation step is urgently needed, and the installation consistency is increased through means.
Disclosure of Invention
The invention aims to solve the problems, and provides an assembled building beam column steel structure connecting piece and a construction method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an assembled building beam column steel construction connecting piece, includes a supporting beam and crossbeam, still includes:
the steel structure connecting piece is arranged at the joint of the supporting beam and the cross beam and is used for supporting and connecting the supporting beam and the cross beam;
the sliding support angle steel is arranged at the top end of the steel structure connecting piece in a sliding manner, and right-angle edges at two sides of the sliding support angle steel are respectively propped against the support beam and the steel structure connecting piece;
the beam locking assembly is arranged in the sliding support angle steel and is connected with the sliding support angle steel, and the locking and the separation of the beam are triggered by the sliding of the sliding support angle steel.
Optionally, the steel structure connecting piece adopts hollow rectangle structure, be provided with the cavity that is used for holding crossbeam locking assembly in the steel structure connecting piece for hold the wearing groove of crossbeam.
Optionally, the upper surface of steel construction connecting piece has seted up the spout of cavity intercommunication, sliding support angle steel sliding connection is on the spout.
Optionally, the beam locking assembly includes a double threaded screw, a nut, a connecting rod, a connecting plate, and a plunger.
Optionally, the number of the nuts is two, namely a left-handed nut and a right-handed nut, the two nuts are respectively welded on the sliding support angle steel, left-handed external threads and right-handed external threads are respectively arranged at two ends of the double-threaded screw, and the left-handed external threads and the right-handed external threads are respectively matched with the left-handed nut and the right-handed nut;
the bottom of sliding support angle steel is connected with the connecting rod axle, the connecting rod is connected with the connecting plate axle, the quantity of inserted bar be a plurality of and with the connecting plate welding, be provided with on the crossbeam with inserted bar complex jack.
Optionally, a safety protection assembly is arranged in the steel structure connecting piece.
Optionally, the safety protection component comprises a shell, a fixed screen, a movable push rod, a limit groove, a push-pull rod, a push plate, an elastic piece and a fire-fighting filling material.
Optionally, the shell is fixed on the inner wall of the steel structure connecting piece, the fixed screen plate is welded on the inner wall of the shell, the movable screen plate is attached to the fixed screen plate, an elastic piece is arranged between the movable screen plate and the shell, and through holes of the movable screen plate and the fixed screen plate are sealed in a staggered manner under the action of the elastic piece;
the movable screen plate is connected with the movable push rod through a shaft, a limit groove is formed in the movable push rod, a push-pull rod is movably connected to the limit groove, the push-pull rod is fixed to a push plate adopting a T-shaped structure, a fire-fighting filling material is arranged in a space surrounded by the push plate and the inner wall of the shell, and the fire-fighting filling material is sodium bicarbonate.
The construction method of the steel structure connecting piece of the assembled building beam column is characterized by comprising the following steps:
firstly, vertically installing a supporting beam at a designated position, wherein a steel structure connecting piece is arranged on the supporting beam in one mode of integral forming and bolt installation, and the upper end of the steel structure connecting piece is opened at the moment;
setting a safety protection assembly in the middle of the inner cavity of the steel structure connecting piece without affecting the position of the beam locking assembly, then installing the beam locking assembly, and finally sealing the upper end opening of the steel structure connecting piece through welding of a rectangular plate;
and thirdly, completing preliminary installation by inserting a plurality of cross beams in parallel into penetrating grooves on the steel structure connecting piece, then rotating the double-threaded screw rod through a wrench, and driving nuts on two sides to move away from each other when the double-threaded screw rod rotates, wherein the nuts move away from connecting plates on two sides through connecting rods on two sides when the nuts move away from each other until the inserting rod is inserted into inserting holes of the cross beams.
Compared with the prior art, the invention has the following advantages:
according to the invention, the sliding support angle steel is arranged, so that the function of reinforcing support is achieved, on one hand, the two right-angle sides of the sliding support angle steel respectively support against the support beam and the steel structure connecting piece, so that the structural strength of the position can be enhanced, and on the other hand, the sliding support angle steel can trigger the locking of the cross beam through sliding.
According to the invention, the beam locking assembly is arranged, the double-threaded screw rod is rotated by the wrench, the nuts on the two sides are driven to move away from each other when the double-threaded screw rod rotates, the connecting plates on the two sides are pushed to move by the connecting rods on the two sides when the nuts move away from each other until the inserted rod is inserted into the insertion hole of the beam, and the mounting and fixing of a plurality of beams can be realized simultaneously through one input end, so that the mounting consistency is good.
According to the invention, the safety protection component is arranged, the fire-fighting filling material can be gradually decomposed into carbon dioxide when the temperature is higher, positive pressure is generated in the shell, the push plate is pushed to move under the action of the positive pressure, the push plate moves the two movable push rods through the push-pull rod to move in an inclined way until the two movable screen plates are finally pushed to move, and finally, the alignment and communication of the movable screen plates and the through holes of the fixed screen plates are realized, so that carbon dioxide gas can escape, and the carbon dioxide can be filled in the steel structure connecting piece and gradually spread to all the cross beams, so that the flame-retardant protection effect can be achieved.
Drawings
FIG. 1 is a schematic diagram of the external structure of the present invention;
FIG. 2 is a schematic diagram of an external structure of the present invention;
FIG. 3 is a schematic view of a beam locking assembly of the present invention;
FIG. 4 is a schematic view of the movement of the beam lock assembly of the present invention;
FIG. 5 is a schematic view of the position of the safety shield assembly of the present invention;
FIG. 6 is a schematic view of a safety shield assembly according to the present invention;
in the figure: the fire-fighting protective device comprises a supporting beam 1, a steel structure connecting piece 2, a beam 3, a sliding supporting angle steel 4, a beam locking component 5, a double-threaded screw 51, an anti-falling block 52, a nut 53, a sliding groove 54, a connecting rod 55, a connecting plate 56, a plug rod 57, a plug hole 58, a safety protection component 6, a shell 61, a fixed screen 62, a movable screen 63, a movable push rod 64, a limiting groove 65, a push-pull rod 66, a push plate 67, an elastic piece 68, a fire-fighting filling material 69 and a reinforcing connecting piece 7.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1-6, an assembled building beam column steel structure connecting piece comprises a supporting beam 1, a cross beam 3, a steel structure connecting piece 2, a sliding supporting angle steel 4, a cross beam locking assembly 5 and a safety protection assembly 6, and the concrete steps are as follows:
the steel structure connecting piece 2 is arranged at the joint of the supporting beam 1 and the cross beam 3, and the steel structure connecting piece 2 is used for supporting and connecting the supporting beam 1 and the cross beam 3. In this embodiment, the steel structure connecting piece 2 adopts a hollow rectangular structure, and a cavity for accommodating the beam locking assembly 5 is arranged in the steel structure connecting piece 2 for accommodating the through slot of the beam 3.
In this embodiment, a reinforcing connection member 7 may be further provided between the support beam 1 and the steel structure connection member 2, and referring to fig. 2, the reinforcing connection member 7 may reinforce the support of the steel structure connection member 2 in a non-vertical direction, increasing stability.
The sliding support angle steel 4 is arranged at the top end of the steel structure connecting piece 2 in a sliding manner, and right-angle edges at two sides of the sliding support angle steel are respectively propped against the support beam 1 and the steel structure connecting piece 2. In this embodiment, the upper surface of the steel structure connecting piece 2 is provided with a chute 54 with a cavity communicated, and the sliding support angle steel 4 is slidably connected to the chute 54.
The sliding support angle steel 4 plays roles in two aspects, on one hand, plays a role in reinforcing support, two right-angle sides of the sliding support angle steel 4 respectively support against the support beam 1 and the steel structure connecting piece 2 to strengthen the structural strength of the position, and on the other hand, the sliding support angle steel 4 can trigger the locking of the cross beam 3 through sliding.
The beam locking assembly 5 is arranged in the sliding support angle steel 4, the beam locking assembly 5 is connected with the sliding support angle steel 4, and the locking and the separation of the beam 3 are triggered by the sliding of the sliding support angle steel 4.
In this embodiment, the beam locking assembly 5 includes a double threaded screw 51, a nut 53, a connecting rod 55, a connecting plate 56, and a plug-in rod 57, and the specific connection manner is:
the number of the nuts 53 is two, namely a left-handed nut and a right-handed nut, the two nuts 53 are respectively welded on the sliding support angle steel 4, left-handed external threads and right-handed external threads are respectively arranged at two ends of the double-threaded screw 51, and the left-handed external threads and the right-handed external threads are respectively matched with the left-handed nut and the right-handed nut.
The bottom of the sliding support angle steel 4 is connected with a connecting rod 55 through a shaft, the connecting rod 55 is connected with a connecting plate 56 through a shaft, the number of the inserting rods 57 is multiple, the inserting rods are welded with the connecting plate 56, and the cross beam 3 is provided with inserting holes 58 matched with the inserting rods 57.
In this embodiment, the two side ports of the double-threaded screw 51 should be welded with the anti-drop blocks 52, and the anti-drop blocks 52 prevent the double-threaded screw 51 from being accidentally separated from the nut 53.
Example two
In this embodiment, the steel structure connecting piece 2 is internally provided with a safety protection component 6, and the safety protection component 6 comprises a shell 61, a fixed screen 62, a movable screen 63, a movable push rod 64, a limit groove 65, a push-pull rod 66, a push plate 67, an elastic piece 68 and a fire-fighting filling material 69, wherein the specific connection mode is as follows:
the casing 61 is fixed on the inner wall of steel construction connecting piece 2, and fixed otter board 62 welds on the casing 61 inner wall, moves otter board 63 and fixed otter board 62 and pastes mutually, is provided with elastic component 68 between moving otter board 63 and the casing 61, and the through-hole of moving otter board 63 and fixed otter board 62 is crisscross closed under the effect of elastic component 68, and the same reason, when elastic component 68 compresses, moves otter board 63 and fixed otter board 62's through-hole alignment intercommunication.
In this embodiment, the elastic member 68 is composed of two parts, namely, a telescopic rod and a spring, the telescopic rod is welded with the inner wall of the housing 61 and the moving screen 63 respectively, and the spring is sleeved on the outer surface of the telescopic rod.
The movable screen 63 is connected with the movable push rod 64 through a shaft, a limit groove 65 is formed in the movable push rod 64, a push rod 66 is movably connected to the limit groove 65, the push rod 66 is fixed with a push plate 67 adopting a T-shaped structure, a fire-fighting filling material 69 is arranged in a space surrounded by the push plate 67 and the inner wall of the shell 61, the fire-fighting filling material 69 is sodium bicarbonate, the sodium bicarbonate can be gradually decomposed into carbon dioxide when the temperature is higher, for example, the temperature reaches more than 50 ℃, positive pressure is generated in the shell 61, the push plate 67 is pushed to move under the action of pressure, the push plate 67 moves the two movable push rods 64 through the push rod 66 to move in an inclined manner until the two movable screen 63 are finally pushed to move, and finally, the through holes of the movable screen 63 and the fixed screen 62 are aligned and communicated, so that carbon dioxide can escape, and the carbon dioxide can be filled in the steel structure connecting piece 2 and gradually spread into all cross beams 3, thereby the flame-retardant protection effect can be achieved.
The construction steps of the above examples 1-2 are as follows:
firstly, vertically installing a supporting beam 1 at a designated position, arranging a steel structure connecting piece 2 on the supporting beam 1 in one mode of integral forming and bolt installation, and opening the upper end of the steel structure connecting piece 2 at the moment;
setting a safety protection assembly 6 in the middle of the inner cavity of the steel structure connecting piece 2 without influencing the position of the beam locking assembly 5, then installing the beam locking assembly 5, and finally sealing the upper end opening of the steel structure connecting piece 2 by welding a rectangular plate;
step three, a plurality of cross beams 3 are inserted into penetrating grooves on the steel structure connecting piece 2 in parallel to finish preliminary installation, then the double-threaded screw rod 51 is rotated by a spanner, the double-threaded screw rod 51 drives nuts 53 on two sides to move away from each other when rotating, and the nuts 53 push connecting plates 56 on two sides to move through connecting rods 55 on two sides when moving away from each other until inserting rods 57 are inserted into inserting holes 58 of the cross beams 3.
The foregoing description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention to all embodiments, but it is intended to cover all embodiments, modifications, equivalents, and variations within the scope of the present invention.
Claims (5)
1. The utility model provides an assembled building beam column steel construction connecting piece, includes supporting beam (1) and crossbeam (3), its characterized in that still includes:
the steel structure connecting piece (2), the steel structure connecting piece (2) is arranged at the joint of the supporting beam (1) and the cross beam (3), and the steel structure connecting piece (2) is used for supporting and connecting the supporting beam (1) and the cross beam (3);
the sliding support angle steel (4) is arranged at the top end of the steel structure connecting piece (2) in a sliding manner, and right-angle edges at two sides of the sliding support angle steel (4) are respectively propped against the support beam (1) and the steel structure connecting piece (2);
the beam locking assembly (5) is arranged in the sliding support angle steel (4), the beam locking assembly (5) is connected with the sliding support angle steel (4), and locking and separating of the beam (3) are triggered by sliding of the sliding support angle steel (4) through the beam locking assembly (5);
the steel structure connecting piece (2) adopts a hollow rectangular structure, and a cavity for accommodating the beam locking assembly (5) is arranged in the steel structure connecting piece (2) and is used for accommodating a through groove of the beam (3);
the upper surface of the steel structure connecting piece (2) is provided with a chute (54) communicated with the cavity, and the sliding support angle steel (4) is connected to the chute (54) in a sliding way;
the beam locking assembly (5) comprises a double-threaded screw rod (51), a nut (53), a connecting rod (55), a connecting plate (56) and a plug rod (57);
the number of the nuts (53) is two, namely a left-handed nut and a right-handed nut, the two nuts (53) are respectively welded on the sliding support angle steel (4), left-handed external threads and right-handed external threads are respectively arranged at two ends of the double-threaded screw (51), and the left-handed external threads and the right-handed external threads are respectively matched with the left-handed nut and the right-handed nut;
the bottom of sliding support angle steel (4) is connected with connecting rod (55) axle, connecting rod (55) and connecting plate (56) axle coupling, the quantity of inserted bar (57) be a plurality of and with connecting plate (56) welding, be provided with on crossbeam (3) with inserted bar (57) complex jack (58).
2. The steel structure connecting piece for the fabricated building beam column according to claim 1, wherein a safety protection assembly (6) is arranged in the steel structure connecting piece (2).
3. The steel structural connector for the fabricated building beam column according to claim 2, wherein the safety protection assembly (6) comprises a shell (61), a fixed screen (62), a movable screen (63), a movable push rod (64), a limiting groove (65), a push-pull rod (66), a push plate (67), an elastic piece (68) and a fire-fighting filling material (69).
4. The steel structure connecting piece for the assembled building beam column according to claim 3, wherein the shell (61) is fixed on the inner wall of the steel structure connecting piece (2), the fixed mesh plate (62) is welded on the inner wall of the shell (61), the movable mesh plate (63) is attached to the fixed mesh plate (62), an elastic piece (68) is arranged between the movable mesh plate (63) and the shell (61), and through holes of the movable mesh plate (63) and the fixed mesh plate (62) are sealed in a staggered mode under the action of the elastic piece (68);
the fire-fighting screen is characterized in that the movable screen (63) is connected with the movable push rod (64) through a shaft, a limiting groove (65) is formed in the movable push rod (64), a push-pull rod (66) is movably connected to the limiting groove (65), the push-pull rod (66) is fixed with a push plate (67) adopting a T-shaped structure, a fire-fighting filling material (69) is arranged in a space surrounded by the push plate (67) and the inner wall of the shell (61), and the fire-fighting filling material (69) is sodium bicarbonate.
5. A method of constructing a steel structural joint for fabricated building beams and columns according to any one of claims 1 to 4, comprising the steps of:
firstly, vertically installing a supporting beam (1) at a designated position, arranging a steel structure connecting piece (2) on the supporting beam (1) in one mode of integral forming and bolt installation, and opening the upper end of the steel structure connecting piece (2);
setting a safety protection assembly (6) at the middle part of the inner cavity of the steel structure connecting piece (2) without influencing the position of the beam locking assembly (5), then installing the beam locking assembly (5), and finally sealing the upper end opening of the steel structure connecting piece (2) through welding of a rectangular plate;
step three, a plurality of cross beams (3) are parallelly inserted into penetrating grooves on the steel structure connecting piece (2) to finish preliminary installation, then the double-threaded screw rod (51) is rotated by a spanner, the double-threaded screw rod (51) drives nuts (53) on two sides to move away from each other when rotating, and the nuts (53) push connecting plates (56) on two sides to move through connecting rods (55) on two sides when moving away from each other until inserting rods (57) are inserted into inserting holes (58) of the cross beams (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289511.4A CN114541581B (en) | 2022-03-23 | 2022-03-23 | Assembled building beam column steel structure connecting piece and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289511.4A CN114541581B (en) | 2022-03-23 | 2022-03-23 | Assembled building beam column steel structure connecting piece and construction method thereof |
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| Publication Number | Publication Date |
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| CN114541581A CN114541581A (en) | 2022-05-27 |
| CN114541581B true CN114541581B (en) | 2023-10-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114837302B (en) * | 2022-06-07 | 2024-04-02 | 西藏藏建科技股份有限公司 | Light steel structure building connecting piece and assembly method thereof |
| CN115262859B (en) * | 2022-09-14 | 2023-09-29 | 蔡永和 | Steel structure supporting beam for building construction |
| CN116163417B (en) * | 2023-03-03 | 2024-01-16 | 江苏非凡重工有限公司 | Assembled steel construction building curtain connecting device |
| CN116984808B (en) * | 2023-09-25 | 2024-01-19 | 中交第二公路工程局有限公司 | Steel welding anti-falling structure for bridge steel structure platform descent control device |
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| CN212129465U (en) * | 2020-04-26 | 2020-12-11 | 贵州同利鑫实业有限公司 | Steel constructs multilayer fixing device |
| CN213626811U (en) * | 2020-09-29 | 2021-07-06 | 景森设计股份有限公司 | Building steel structure supporting structure |
| CN214169449U (en) * | 2020-11-18 | 2021-09-10 | 乐清市南方钢结构工程有限公司 | Connecting structure of steel structure beam and steel structure column |
| CN214994657U (en) * | 2021-07-15 | 2021-12-03 | 云南芮瀚科技有限公司 | Green's large-span steel construction building |
| CN215563350U (en) * | 2021-09-07 | 2022-01-18 | 济宁兴华钢构有限公司 | Steel structure beam column reinforced connection node |
| CN215977700U (en) * | 2021-09-28 | 2022-03-08 | 天津市瑞金金属制品有限公司 | Connecting structure of steel structure beam and steel structure column |
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| CN114541581A (en) | 2022-05-27 |
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