CN111962660B - Construction system using prefabricated steel member and cement fiberboard - Google Patents
Construction system using prefabricated steel member and cement fiberboard Download PDFInfo
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- CN111962660B CN111962660B CN202010829205.6A CN202010829205A CN111962660B CN 111962660 B CN111962660 B CN 111962660B CN 202010829205 A CN202010829205 A CN 202010829205A CN 111962660 B CN111962660 B CN 111962660B
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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
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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
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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
-
- 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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- 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
- E04B2001/2463—Connections to foundations
-
- 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
- E04B2001/2481—Details of wall panels
-
- 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
- E04B2001/2484—Details of floor panels or slabs
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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 discloses a building system using prefabricated steel components and cement fiber boards, which relates to the field of building structures and aims at solving the problems that the existing prefabricated steel components and cement fiber boards are difficult to maintain accuracy, need special skills for assembly and are difficult to operate, which comprises a steel pipe structure, wherein the steel pipe structure comprises an upper external steel pipe, a lower external steel pipe, a multifunctional connector, steel anchoring equipment, a through hole, a drill hole and a connector slot, the side wall of the steel pipe structure is provided with a cement fiberboard, the cement fiberboard comprises an external wallboard, a floor board and an internal wallboard, the steel pipe structure and the cement fiberboard are fixedly connected with a connecting structure, the connecting structure comprises a fiberboard connector and a fiberboard locking pin, the steel pipe structure and the cement fiberboard are connected with a side beam structure, and the side beam structure comprises a main side beam and an auxiliary side beam. The invention has novel structure and simple operation, ensures the accuracy and precision of the structure and increases the stability.
Description
Technical Field
The present invention relates to the field of building construction, and more particularly to a building system using prefabricated steel members and cement fiberboard.
Background
The prefabricated steel member that uses and the building of cement fiberboard are connected in the existing market, still exist not enoughly in operation process, are difficult to keep the accuracy, still need special skill to assemble, and the operation degree of difficulty is big, consequently, in order to solve this type of problem, we have proposed the building system who uses prefabricated steel member and cement fiberboard.
Disclosure of Invention
The building system using the prefabricated steel members and the cement fiber boards solves the problems that the existing buildings using the prefabricated steel members and the cement fiber boards are difficult to maintain accuracy, need special skills for assembly and are difficult to operate.
In order to achieve the purpose, the invention adopts the following technical scheme:
use building system of prefabricated steel member and cement fiberboard, including steel pipe structure, steel pipe structure includes outside steel pipe, lower outside steel pipe, multi-function connector, steel anchoring equipment, through-hole, drilling, connector slot, the steel pipe structure lateral wall is provided with cement fiberboard, cement fiberboard includes side fascia, floor board and interior wallboard, steel pipe structure and cement fiberboard fixedly connected with connection structure, connection structure includes fiberboard connector and fiberboard locking needle, steel pipe structure and cement fiberboard are connected with the curb girder structure, the curb girder structure includes main curb girder and vice curb girder, be connected with the adhesive between steel pipe structure and the cement fiberboard, the adhesive includes first polymer cement mortar adhesive and second polymer cement mortar adhesive.
Preferably, one side fixed connection of last outside steel pipe is kept away from with lower outside steel pipe to steel anchoring equipment, the through-hole is evenly distributed at the multi-function connector lateral wall, the connector slot is evenly distributed at last outside steel pipe, on outside steel pipe and the multi-function connector down, drilling is evenly distributed under on the outside steel pipe, the multi-function connector is located outside steel pipe and between the outside steel pipe down, and the multi-function connector matches with the inboard of last outside steel pipe and outside steel pipe down, and through-hole, connector slot and drilling match each other.
Preferably, the fiber board connector runs through the through hole and the drilling hole, the fiber board locking pins run through the fiber board connector, and the fiber board connector is uniformly distributed.
Preferably, the external wall panels and the floor panels are uniformly distributed, the external wall panels and the floor panels are connected through a first polymer cement mortar adhesive, and the external wall panels and the floor panels are connected with the main side beams and the auxiliary side beams through a second polymer cement mortar adhesive.
Preferably, main curb girder and vice curb girder are the right angle and distribute, the side fascia is located to be to being between the two main curb girders that are the distribution, the floor board is located to be to being between the vice curb girder that is the distribution, main curb girder is perpendicular with water flat line all the time.
Preferably, the central axes of the upper external steel pipe, the lower external steel pipe, the multifunctional connector and the steel anchoring device are all consistent.
The invention has the beneficial effects that:
through all setting up the part into prefabricated part, easily assemble through general work, do not need special skill, the operation degree of difficulty is low, connects simply, guarantees the accuracy and the accuracy of structure, increases stability.
In conclusion, the device is simple to operate, the accuracy and the precision of the structure are guaranteed, and the stability is improved.
Drawings
FIG. 1 is an exploded view of the steel pipe structure of the present invention.
FIG. 2 is a schematic view of the foundation assembly structure of the present invention.
Fig. 3 is a schematic structural view in a disassembled state of the present invention.
FIG. 4 is a schematic view of the three-dimensional structure of the steel pipe structure and the cement fiberboard of the present invention.
FIG. 5 is a partial enlarged view of a three-dimensional structure consisting of a steel pipe structure and a cement fiberboard of the present invention.
FIG. 6 is a schematic view of the structure of the steel pipe and the cement fiberboard of the present invention.
Fig. 7 is a schematic structural view of the exterior wall assembly of the present invention.
Fig. 8 is a structural view illustrating the prefabricated steel member of the present invention and other outer walls and floors.
Reference numbers in the figures: 1. a steel pipe structure; 101. an upper outer steel tube; 102. a lower outer steel tube; 103. a multi-functional connector; 104. a steel anchoring device; 105. a through hole; 106. drilling; 107. a connector slot; 2. a connecting structure; 201. a fiber board connector; 202. a fiberboard locking pin; 3. a cement fiberboard; 301. an external wall panel; 302. a floor plate; 303. an inner wall panel; 4. a side sill structure; 401. a main side member; 402. a sub side member; 5. a binder; 501. a first polymer cement mortar binder; 502. a second polymer cement mortar binder.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, a construction system using prefabricated steel members and cement fiber boards, comprising a steel pipe structure 1, the steel pipe structure 1 including an upper outer steel pipe 101, a lower outer steel pipe 102, a multi-function connector 103, a steel anchoring device 104, a through-hole 105, a bore 106, a connector insertion groove 107, the steel pipe structure 1 having a side wall provided with cement fiber boards 3, the cement fiber boards 3 including an outer wall board 301, a floor board 302, and an inner wall board 303, the steel pipe structure 1 and the cement fiber boards 3 being fixedly connected with a connection structure 2, the connection structure 2 including a fiber board connector 201 and a fiber board locking pin 202, the steel pipe structure 1 and the cement fiber boards 3 being connected with a side sill structure 4, the side sill structure 4 including a primary side sill 401 and a secondary side sill 402, an adhesive 5 connected between the steel pipe structure 1 and the cement fiber boards 3, the adhesive 5 including a first polymer cement mortar adhesive 501 and a second polymer cement mortar adhesive 502, the steel anchoring device 104 is fixedly connected with one side of the lower outer steel pipe 102 far away from the upper outer steel pipe 101, the through holes 105 are uniformly distributed on the side wall of the multifunctional connector 103, the connector slots 107 are uniformly distributed on the upper outer steel pipe 101, the lower outer steel pipe 102 and the multifunctional connector 103, the drill holes 106 are uniformly distributed on the lower outer steel pipe 102, the multifunctional connector 103 is positioned between the upper outer steel pipe 101 and the lower outer steel pipe 102, the multifunctional connector 103 is matched with the inner sides of the upper outer steel pipe 101 and the lower outer steel pipe 102, the through holes 105, the connector slots 107 and the drill holes 106 are matched with each other, the fiber board connector 201 penetrates through the through holes 105 and the drill holes 106, the fiber board locking pins 202 penetrate through the fiber board connector 201, the fiber board connector 201 is uniformly distributed, the outer wall board connector 301 and the floor board connector 302 are uniformly distributed, and the outer wall board connector 301 and the floor board connector 302 are connected through a first polymer cement mortar adhesive 501, the outer wall plate 301 and the floor plate 302 are connected with the main side beam 401 and the auxiliary side beam 402 through a second polymer cement mortar adhesive 502, the main side beam 401 and the auxiliary side beam 402 are distributed at a right angle, the outer wall plate 301 is positioned between the two main side beams 401 which are distributed oppositely, the floor plate 302 is positioned between the auxiliary side beams 402 which are distributed oppositely, the main side beam 401 is always vertical to a horizontal line, and the central axes of the upper external steel pipe 101, the lower external steel pipe 102, the multifunctional connector 103 and the steel anchoring equipment 104 are all consistent.
The working principle is as follows: this building system uses 5 kinds of prefabricated steel members constituting a main body frame of a building, i.e., a steel pipe structure 1, a connecting structure 2, cement fiber boards 3, side beam structures 4, cement fiber boards 3 forming outer walls and floors are connected to the main body frame, all of the prefabricated steel members are fastened with bolts or bolts and nuts, the cement fiber boards 3 are fixed to appropriate components by an adhesive 5, and the upper structure is fixed together by bolts and nuts, forming a foundation by a foundation foot connecting a steel anchoring device 104 with a lower outer steel pipe 102;
see FIG. 4: this device, often referred to in engineering as a sleeve, is normally used to connect two horizontal or vertical tubular or circular pipes, but in our system the sleeve has multiple functions, the multifunctional connector 103 has several drilled holes 106 and through holes 105 on which external fixing brackets and fibre board connectors 201 are fixed, allowing to connect the upper external steel pipe 101 and the lower external steel pipe 102, the multifunctional connector 103 is inside the external steel pipe, this arrangement allows to connect on the one hand a specific bracket and the connecting structure 2, while also forming part of a right-post structure, the multifunctional connector 103 can be oriented in any lateral position without affecting its ability to receive fasteners and the upper and lower external steel pipes 101 and 102;
see FIGS. 2-7: inserting a connection device into each pipe hole of the cement fiberboard 3, then inserting a connector into slots on the outer steel pipe and the multi-function connector 103, and lockingly positioning the connection structure 2 by 90 ° rotation the connector having fiberboard locking pins 202 to lock the outer steel pipe and the slots of the multi-function connector 103, completely sealing the gap between the panel and the steel column using a second polymer cement mortar adhesive 502, inserting the connector, applying a first polymer cement mortar adhesive 501 to both sides and ends of the cement fiberboard 3 while resting on the middle steel beam, fastening the bottom surface of the cement fiberboard 3 to the sub-beam using the second polymer cement mortar adhesive 502, cutting the cement fiberboard 3 into a desired size according to the size of the window and door, and then fixing the prefabricated window and door using fixing screws and polymer cement mortar 5, for waterproof doors and windows, the position where the frame meets the cement fiberboard 3 is sealed by grouting;
see FIG. 3: the steel tube is welded to the steel plate, which is then welded to the four legs of the anchoring device, the multi-functional connector 103 is inserted at a suitable level, to form the starting point of the vertical column, the outer steel pipes are provided with several through holes 105 through which fasteners are passed to be fixed to the multi-function connectors 103, several insertion grooves into which locking pins of the cement fiberboard 3 are inserted, the multi-function connectors 103 and the outer steel pipes allow the lateral connection of steel beams to be combined with the vertical structure of the structural frame of the building, the side steel beams can be connected to the multi-function connectors 103 and the outer steel pipes at any main position, for the middle storey, additional steel beams forming the flat panel support array are connected to the lateral structural beams, the cement fibre slabs 3 forming the floor slab are located on this arrangement, the outer wall is also formed by connecting a cement fiber board 3 with an external steel pipe through polymer cement mortar adhesive 5;
see FIGS. 1-3: the foundation is made of reinforced concrete, each column is provided with an embedded anchoring device, and the ground beam, the floor slab and the tie beam are cast in situ and are interconnected with the anchoring devices;
the steel anchoring device 104 means, which provides the required column anchoring and structural support, is embedded in the foundation of reinforced concrete, allowing the vertical columns to be firmly embedded in the foundation, the steel anchoring device 104 being composed of two key elements, an outer steel pipe anchored and welded to the steel plate;
see fig. 8: the steel pipes are used to form a series of secondary beams for floor support, the array preventing deflection and having cement fibre boards 3 directly above and secured by polymer cement mortar adhesive 5, the secondary beams being connected to the primary beams by brackets;
the series of special steel supports forming part of the superstructure are fixed to the multi-purpose connectors 103 by means of external steel pipes and to the lateral structural elements, allowing the formation of lateral parts of the superstructure, and some acting as supports for stabilizing the superstructure, the other supports forming part of the secondary beam connection.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A building system using prefabricated steel members and cement fiber boards comprises a steel pipe structure (1) and is characterized in that the steel pipe structure (1) comprises an upper outer steel pipe (101), a lower outer steel pipe (102), a multifunctional connector (103), steel anchoring equipment (104), through holes (105), drill holes (106) and connector slots (107), the side wall of the steel pipe structure (1) is provided with the cement fiber boards (3), each cement fiber board (3) comprises an outer wall board (301), a floor board (302) and an inner wall board (303), the steel pipe structure (1) and the cement fiber boards (3) are fixedly connected with a connecting structure (2), the connecting structure (2) comprises a fiber board connector (201) and a fiber board locking pin (202), the steel pipe structure (1) and the cement fiber boards (3) are connected with a side beam structure (4), and the side beam structure (4) comprises a main side beam (401) and an auxiliary side beam (402), a binding agent (5) is connected between the steel pipe structure (1) and the cement fiber board (3), wherein the binding agent (5) comprises a first polymer cement mortar binding agent (501) and a second polymer cement mortar binding agent (502);
the through holes (105) are uniformly distributed on the side wall of the multifunctional connector (103), the connector slots (107) are uniformly distributed on the upper outer steel pipe (101), the lower outer steel pipe (102) and the multifunctional connector (103), the drill holes (106) are uniformly distributed on the lower outer steel pipe (102), the multifunctional connector (103) is positioned between the upper outer steel pipe (101) and the lower outer steel pipe (102), the multifunctional connector (103) is matched with the inner sides of the upper outer steel pipe (101) and the lower outer steel pipe (102), and the through holes (105), the connector slots (107) and the drill holes (106) are matched with each other;
the fiber board connectors (201) penetrate through the through holes (105) and the drill holes (106), and the fiber board connectors (201) are uniformly distributed;
the main side beam (401) is fixed on the steel pipe structure (1) through the through hole (105) and the drill hole (106).
2. A building system using prefabricated steel members and cement fibre boards according to claim 1, characterised in that the steel anchoring device (104) is fixedly connected with the side of the lower outer steel pipe (102) remote from the upper outer steel pipe (101).
3. A building system using prefabricated steel components and cement fibre boards according to claim 1, characterised in that the fibre board locking pins (202) extend through the fibre board connector (201).
4. The building system using the precast steel members and the cement fiberboard as set forth in claim 1, wherein the external wall panels (301) and the floor panels (302) are uniformly distributed, and the external wall panels (301) and the floor panels (302) are connected by a first polymer cement mortar adhesive (501), and the external wall panels (301) and the floor panels (302) and the main side sills (401) and the sub side sills (402) are connected by a second polymer cement mortar adhesive (502).
5. A building system using prefabricated steel members and cement fiberboards according to claim 4, wherein the main side beams (401) are arranged at right angles to the sub side beams (402), the outer wall panel (301) is positioned between the main side beams (401) which are symmetrically arranged, the floor panel (302) is positioned between the sub side beams (402) which are symmetrically arranged, and the main side beams (401) are always perpendicular to the horizontal line.
6. The building system using prefabricated steel members and cement fiberboards according to claim 1, wherein central axes of the upper outer steel pipe (101), the lower outer steel pipe (102), the multi-purpose connector (103) and the steel anchoring device (104) are all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829205.6A CN111962660B (en) | 2020-08-18 | 2020-08-18 | Construction system using prefabricated steel member and cement fiberboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829205.6A CN111962660B (en) | 2020-08-18 | 2020-08-18 | Construction system using prefabricated steel member and cement fiberboard |
Publications (2)
| Publication Number | Publication Date |
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| CN111962660A CN111962660A (en) | 2020-11-20 |
| CN111962660B true CN111962660B (en) | 2022-04-26 |
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| WO2016056696A1 (en) * | 2014-10-10 | 2016-04-14 | (주)피에스테크 | Framework connection structure and connection method using steel pipe without diaphragm |
| CN106049677A (en) * | 2016-02-04 | 2016-10-26 | 李新华 | Steel structure |
| CN107893481A (en) * | 2017-12-21 | 2018-04-10 | 青岛理工大学 | Full-assembly steel frame structure system with recovery function |
| EP3366853A1 (en) * | 2017-02-24 | 2018-08-29 | New World China Land Limited | Prefabricated structural system and assembling method thereof |
| CN108755956A (en) * | 2018-06-26 | 2018-11-06 | 青岛理工大学 | Steel column and column self-locking type node |
| CN209397709U (en) * | 2018-11-23 | 2019-09-17 | 华北理工大学 | Lightgage steel joist steel frame composite structure |
| CN209760512U (en) * | 2019-04-09 | 2019-12-10 | 赣州建筑工业化有限公司 | Prefabricated assembled side fascia-steel column dry-type connecting device |
-
2020
- 2020-08-18 CN CN202010829205.6A patent/CN111962660B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016056696A1 (en) * | 2014-10-10 | 2016-04-14 | (주)피에스테크 | Framework connection structure and connection method using steel pipe without diaphragm |
| CN105317110A (en) * | 2015-11-06 | 2016-02-10 | 中建钢构有限公司 | Integrated assembly type steel structure building |
| CN106049677A (en) * | 2016-02-04 | 2016-10-26 | 李新华 | Steel structure |
| EP3366853A1 (en) * | 2017-02-24 | 2018-08-29 | New World China Land Limited | Prefabricated structural system and assembling method thereof |
| CN107893481A (en) * | 2017-12-21 | 2018-04-10 | 青岛理工大学 | Full-assembly steel frame structure system with recovery function |
| CN108755956A (en) * | 2018-06-26 | 2018-11-06 | 青岛理工大学 | Steel column and column self-locking type node |
| CN209397709U (en) * | 2018-11-23 | 2019-09-17 | 华北理工大学 | Lightgage steel joist steel frame composite structure |
| CN209760512U (en) * | 2019-04-09 | 2019-12-10 | 赣州建筑工业化有限公司 | Prefabricated assembled side fascia-steel column dry-type connecting device |
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|---|---|
| CN111962660A (en) | 2020-11-20 |
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