A prefabricated steel structure building system and installation method thereof

Abstract

The present invention belongs to the technical field of assembled steel structure buildings, and specifically relates to an assembled steel structure building system and an installation method thereof, wherein the building system comprises a steel structure frame, a steel structure beam and a steel structure roof which are arranged vertically in sequence, square connectors are arranged inside the steel structure frame and inside the steel structure beam, and the steel structure roof is sequentially connected with a second connecting shaft, a connecting shaft fixing plate and a first connecting shaft, and the two ends of the connecting shaft fixing plate are annular and the first bolts for connecting with the square connector are inserted in the ring; during installation, the steel structure roof is hinged with the second connecting shaft and the first connecting shaft so that it is obliquely installed on the steel structure frame and the steel structure beam to avoid welding. The method comprises steps one to three. The present invention can use the hinged structure to coordinate the complex inclination angles of the steel structure roof so that it is obliquely installed on the steel structure frame and the steel structure beam to avoid on-site welding.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembled steel structure buildings, and in particular relates to an assembled steel structure building system and an installation method thereof. Background Art

[0002] Most of the components of prefabricated steel structure buildings are prefabricated in the factory, and only assembly and connection are required on site, which greatly shortens the construction period and reduces the demand for wet work and labor on site. Factory production ensures the accuracy and consistency of components and reduces the errors and uncertainties of on-site construction. At the same time, the steel structure material itself has good durability and corrosion resistance.

[0003] During the assembly process, the components of steel structure buildings are generally fixed by welding or bolting. Although modular components have a certain degree of uniformity, the following problems still exist in actual construction: 1. When installing the roof formwork, the positioning and fixing of the formwork becomes difficult due to the complex shape of the sloping roof. If the connection nodes are not handled properly, it may cause structural instability or a safety accident.

[0004] 2. In the actual welding process of construction, due to the limitations of welding technology, material quality, operator skills and other factors, various defects often appear in the welds, such as cracks, slag inclusions, and unfusion. These defects will not only reduce the strength of the weld, but may also cause the weld to break, which is not conducive to improving the stability of the sloping roof. Summary of the invention

[0005] The purpose of the present invention is to provide an assembled steel structure building system and an installation method thereof, which can utilize an articulated structure to coordinate the complex inclination angle of a steel structure roof so that it can be installed obliquely on a steel structure frame and a steel structure beam, thereby avoiding on-site welding.

[0006] The technical solution adopted by the present invention is as follows: An assembled steel structure building system comprises a steel structure frame, a steel structure beam and a steel structure roof which are arranged vertically in sequence. According to the structural design requirements, each component of the steel structure building system is customized and processed in a factory, which can realize the standardized production of components, ensure the consistency and interchangeability of component sizes and specifications, and reduce the difficulty and error of on-site installation. The steel structure frame and the steel structure beam are both provided with square connectors, and the steel structure roof is connected with a second connecting shaft, a connecting shaft fixing plate and a first connecting shaft in sequence. Both ends of the connecting shaft fixing plate are ring-shaped, and the rings of the connecting shaft fixing plate are both inserted with first bolts for connecting with the square connectors. During installation, first use the first bolt to fix the two ends of the first connecting shaft to the first connecting shaft and the second connecting shaft respectively. Since the connection between the first connecting shaft and the second connecting shaft is folded, it can swing around the first bolt at a certain angle to form a hinged structure. The steel structure roof is hinged with the second connecting shaft and the first connecting shaft to coordinate the complex inclination angle of the steel structure roof, so that it can be installed obliquely on the steel structure frame and the steel structure beam, avoiding on-site welding and preventing safety problems that may be caused by weld defects.

[0007] As an optional solution, an operation window and a pin hole are spaced apart on the outer side of the square connecting member, wherein the diameter of the operation window is larger than the diameter of the pin hole, and the pin hole is used to pass the first bolt.

[0008] As an optional solution, the steel structure frame includes a plurality of first cross beams distributed in a grid shape, and a first supporting column is connected between two adjacent grids through the square connecting member, and the first supporting column is connected to the second connecting shaft through the square connecting member to support the steel structure roof.

[0009] As an optional solution, the steel structure beam includes a second supporting column and a second cross beam connected to the square connecting member, the second supporting column is aligned with the first supporting column, and the second cross beam is connected to the second connecting shaft through the square connecting member.

[0010] As an optional solution, the steel structure roof includes an inclined beam and a third cross beam located between two adjacent inclined beams, wherein a part of the second connecting axis and the first connecting axis are installed at both ends of the inclined beam, and another part of the second connecting axis and the first connecting axis are installed between the inclined beam and the second supporting column, and multi-point tensioning is performed to achieve a close connection between the steel structure frame, the steel structure beam and the steel structure roof.

[0011] As an optional solution, a second bolt for passing through the pin hole is arranged on the outside of the square connecting member, and the square connecting member is respectively connected to the second connecting shaft member, the first cross beam member, the first supporting column, the second supporting column or the second cross beam member through the second bolt.

[0012] As an optional solution, the second connecting shaft is externally hinged with a first oblique square tube and a second oblique square tube. When installed, the end of the first oblique square tube away from the second connecting shaft is connected to the outside of the inclined beam, and the end of the second oblique square tube away from the second connecting shaft is connected to the outside of the first cross beam. A triangular stable structure can be assembled inside the sloping roof to hold the steel structure frame, steel structure beams and steel structure roof, and can support the sloping roof vertically while limiting the horizontal position, thereby improving the strength to resist severe weather.

[0013] As an optional solution, a third bolt is provided at one end of the first oblique square tube, and the oblique beam is provided with a strip hole. When installing, the third bolt is passed through the strip hole to limit the first oblique square tube. A clamp is provided at one end of the second oblique square tube, and the clamp is used to cover the first cross beam to limit the second oblique square tube.

[0014] As an optional solution, one end of the first oblique square tube is also hinged to a first perforated plate, and one end of the second oblique square tube is also hinged to a second perforated plate, and a pulling screw is installed between the first perforated plate and the second perforated plate. When installed, the pulling screw, the first oblique square tube and the second oblique square tube form a triangular stable structure to pull the steel structure frame, the steel structure beams and the steel structure roof.

[0015] A method for installing an assembled steel structure building system comprises the following steps: Step 1: Customize and manufacture each component of the steel structure building system, process and shape the steel structure frame, the steel structure beams and the steel structure roof in the factory, and remove burrs from the steel structure frame, the steel structure beams and the steel structure roof to avoid cutting hands by burrs during construction; Step 2: Lay out and locate the steel structure frame, the steel structure beams and the steel structure roof at the construction site according to the design drawings, and determine the installation positions of the steel structure frame, the steel structure beams and the steel structure roof. Connect and firmly install the steel structure frame, the steel structure beams and the steel structure roof through the square connectors. First, build the first floor, and then provide vertical support after completion. Then build the second floor, and then build the steel structure beams on the second floor. Step three: Install hinged structures at the connection nodes of the steel structure roof, connect the steel structure frame using the hinged structure, and adjust the angle so that the top of the steel structure roof is aligned with the top of the steel structure beam, and use the hinged structure to reinforce between the steel structure roof and the steel structure beam. After the construction is completed, check the square connectors and hinged structures one by one.

[0016] The technical effects achieved by the present invention are: According to the structural design requirements, the present invention customizes and manufactures various components of the steel structure building system in the factory, which can realize standardized production of components, ensure the consistency and interchangeability of component sizes and specifications, and reduce the difficulty and error of on-site installation. During construction, the steel structure frame, steel structure beams and steel structure roof are assembled in sequence, and fixed with square connectors at the connection nodes. Prefabricated components and bolts are used for connection, which avoids on-site cast-in-place nodes and welds, significantly improves construction efficiency, and shortens the construction period.

[0017] When installing the steel structure building system, the hinged structure is assembled first, and the steel structure roof is hingedly swung through the hinged structure to coordinate the complex inclination angle of the steel structure roof so that it can be installed obliquely on the steel structure frame and the steel structure beams, avoiding on-site welding and preventing safety problems that may be caused by weld defects.

[0018] In order to cope with severe weather, the present invention assembles a triangular stable structure inside the sloping roof to hold the steel structure frame, steel structure beams and steel structure roof, and can vertically support the sloping roof while limiting the horizontal position, thereby improving the strength to resist severe weather and making residents safer.

[0019] The present invention provides an installation method of step one to step three, which can guide construction personnel to customize, process and manufacture various components of a steel structure building system to form industrialized standard building components, such as a steel structure frame, a steel structure beam and a steel structure roof, so as to realize standardized production of components, ensure consistency and interchangeability of component sizes and specifications, and reduce difficulty and error in on-site installation; and remove burrs from the steel structure frame, the steel structure beam and the steel structure roof to avoid cuts on hands caused by burrs during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of an assembled steel structure building system in Embodiment 1 of the present invention; Figure 2 is a schematic structural diagram of the first supporting column in the first embodiment of the present invention being assembled into a grid state; Figure 3 It is a structural schematic diagram of the steel structure frame and the steel structure beam assembled together in the first embodiment of the present invention; Figure 4 It is a partial structural diagram of the assembled steel structure building system in the first embodiment of the present invention; Figure 5 is a schematic structural diagram of a square connector in Embodiment 1 of the present invention; Figure 6 is a schematic structural diagram of a single inclined beam before assembly in the first embodiment of the present invention; Figure 7 is a schematic diagram of the structure after a single inclined beam is assembled in the first embodiment of the present invention; Figure 8 is a schematic diagram of the structure of a local grid in the first embodiment of the present invention; Fig. 9 is an exploded view of the hinge structure in the first embodiment of the present invention; Fig.10 is a structural schematic diagram of the hinge structure in the first embodiment of the present invention; Fig.11 It is a schematic diagram of the structure before the hinged structure and the steel structure beam are assembled in the first embodiment of the present invention; Fig.12 It is a partial structural diagram of the assembled steel structure building system in the second embodiment of the present invention; Fig.13 It is a flow chart of the installation method in the third embodiment of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Square connecting member; 101. Operating window; 102. Pin hole; 201. First connecting shaft member; 202. Second connecting shaft member; 203. Connecting shaft fixing plate; 204. First bolt; 301. First cross beam member; 302. First supporting column; 401. Second supporting column; 402. Second cross beam member; 501. Oblique beam; 502. Third cross beam member; 6. Second bolt; 7. First oblique square tube; 701. Third bolt; 702. Strip hole; 8. Second oblique square tube; 9. Clamp; 11. First perforated plate; 12. Second perforated plate; 13. Pulling screw. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0023] Embodiment 1: like Figure 1-Figure 11 As shown, an assembled steel structure building system includes a steel structure frame, steel structure beams and a steel structure roof which are arranged vertically in sequence. According to the structural design requirements, the various components of the steel structure building system are customized and manufactured in the factory, which can realize the standardized production of the components, ensure the consistency and interchangeability of the component sizes and specifications, reduce the difficulty and error of on-site installation, and are provided with square connectors 1 inside the steel structure frame and the steel structure beams. The square connectors 1 are customized using standard parts technology. When building, the steel structure frame, steel structure beams and steel structure roof are assembled in sequence, and the square connectors 1 are used to fix them at the connection nodes. Prefabricated components and bolts are used for connection, which avoids on-site cast-in-place nodes and welds, significantly improves the construction efficiency, shortens the construction period, and removes burrs from the steel structure frame, steel structure beams and steel structure roof to avoid cuts on hands by burrs during building.

[0024] When installing a steel structure roof, the sloping roof it contains is complex in shape, which makes it difficult to position and fix the construction template. If the connection nodes are not handled properly, the overall structure may become unstable or a safety accident may occur. If welding is used for reinforcement during the construction process, welds are often left, which may be affected by welding defects and may also cause weld fractures, which is not conducive to improving the stability of the sloping roof.

[0025] See attached Figure 4 , Fig. 9 and Fig.10 In order to improve the stability of the sloping roof, in this embodiment, a second connecting shaft 202, a connecting shaft fixing plate 203 and a first connecting shaft 201 are sequentially connected to the steel structure roof, and the connecting shaft fixing plate 203 is designed to be annular at both ends and a first bolt 204 for connecting with the square connecting member 1 is inserted in the ring; during installation, the first bolt 204 is first used to fix the two ends of the first connecting shaft 201 to the first connecting shaft 201 and the second connecting shaft 202 respectively. Since the connection between the first connecting shaft 201 and the second connecting shaft 202 is folded, it can swing around the first bolt 204 at a certain angle to form a hinged structure. The steel structure roof coordinates the complex inclination angle of the steel structure roof through the hinge of the second connecting shaft 202 and the first connecting shaft 201, so that it can be installed obliquely on the steel structure frame and the steel structure beam, avoiding on-site welding, and preventing safety problems that may be caused by weld defects.

[0026] See attached Figure 3 , Figure 4 and Figure 5 In order to facilitate installation using electric tools, this embodiment has an operation window 101 and a pin hole 102 spaced apart on the outside of the square connector 1, wherein the diameter of the operation window 101 is larger than the diameter of the pin hole 102, and the head of the electric tool can be penetrated, and the pin hole 102 is used to pass the first bolt 204, so that the end of the first bolt 204 is buried in the square connector 1, and the screw head is exposed to the outside, and a nut can be tightened by an electric tool for locking.

[0027] See attached Figure 2 , Figure 3 and Figure 4 In order to facilitate the construction workers to build the steel structure building system in a standardized manner, the steel structure frame of this embodiment includes a plurality of first cross beams 301 distributed in a grid shape, and every four first cross beams 301 form a unit cell. The number of units can be increased or decreased according to the construction drawings. A first supporting column 302 is connected between two adjacent grids through a square connector 1, so that the two grids of this embodiment are built three-dimensionally. The first supporting column 302 is connected to the second connecting shaft 202 through the square connector 1 to support the steel structure roof.

[0028] See attached Figure 3 , Figure 4 and Figure 7, the middle of the sloping roof is bulged. In order to support the bulged part, the steel structure beam in this embodiment is designed to include a second supporting column 401 and a second cross beam 402 connected to the square connecting member 1. The second supporting columns 401 and the second cross beam 402 are vertically arranged in a grid shape, the second supporting columns 401 are aligned with the first supporting columns 302, and the second cross beam 402 is connected to the second connecting shaft 202 through the square connecting member 1, so that a more three-dimensional sloping roof can be built on the steel structure frame.

[0029] See attached Figure 1 , Figure 4 and Fig.10 The sloping roof is also produced in a standardized manner in the factory based on the construction drawings to ensure the consistency and interchangeability of component sizes and specifications. The steel structure roof includes an inclined beam 501 and a third cross beam 502 located between two adjacent inclined beams 501. The inclined beam 501 and the third cross beam 502 are fixed at the connection between the inclined beam 501 and the third cross beam 502 using screws to assemble into a three-dimensional sloping roof, wherein a part of the second connecting shaft 202 and the first connecting shaft 201 are installed at both ends of the inclined beam 501 through the first bolt 204, and the other part of the second connecting shaft 202 and the first connecting shaft 201 are installed between the inclined beam 501 and the second supporting column 401 through the first bolt 204, and multi-point tightening is achieved to achieve a close connection between the steel structure frame, the steel structure beam and the steel structure roof.

[0030] See attached Figure 6 and Fig.10 In this embodiment, a second bolt 6 for passing through the pin hole 102 is arranged on the outside of the square connector 1. The second bolt 6 can be driven in using an electric tool, so that the square connector 1 is connected to the second connecting shaft 202, the first cross beam 301, the first supporting column 302, the second supporting column 401 or the second cross beam 402 through the second bolt 6, respectively, and the construction is more convenient. Among them, the last square connector 1 to be driven with the second bolt 6 can be its top surface, especially in the process of connecting with the second supporting column 401, the flange plate in the second supporting column 401 can be taken out first, and after the second bolt 6 is driven in, the tubular second supporting column 401 can be put on, which can be horizontally limited and vertically support the sloping roof.

[0031] Embodiment 2: The sloping roof in the first embodiment is mainly reinforced at both ends of the sloping beam 501 and only relies on the pulling of the first bolt 204. When dealing with severe weather such as strong winds or hail, there is a lack of certain internal support measures.

[0032] like Fig.12As shown, an assembled steel structure building system is basically the same as the first embodiment, and the similarities can be referred to the first embodiment. The difference is that in this embodiment, a first oblique square tube 7 and a second oblique square tube 8 are hinged on the outside of the second connecting shaft 202 by a first bolt 204. When installed, the end of the first oblique square tube 7 away from the second connecting shaft 202 is connected to the outside of the inclined beam 501, and the end of the second oblique square tube 8 away from the second connecting shaft 202 is connected to the outside of the first cross beam 301. A triangular stable structure can be assembled inside the sloping roof to hold the steel structure frame, steel structure beams and steel structure roof. While limiting the horizontal position, it can vertically support the sloping roof to improve the strength against severe weather.

[0033] See attached Fig.12 In this embodiment, a third bolt 701 is provided at one end of the first oblique square tube 7, and a strip hole 702 is opened on the oblique beam 501. When installing, the third bolt 701 is passed through the strip hole 702 to limit the first oblique square tube 7. A clamp 9 is provided at one end of the second oblique square tube 8. The clamp 9 is used to cover the first cross beam 301 to limit the second oblique square tube 8, thereby realizing the rapid construction of the above-mentioned triangular stable structure.

[0034] See attached Fig.12 One end of the first oblique square tube 7 is also hinged with a first perforated plate 11, and one end of the second oblique square tube 8 is also hinged with a second perforated plate 12. A pulling screw 13 is installed between the first perforated plate 11 and the second perforated plate 12. When installing, first pass the two ends of the pulling screw 13 through the first perforated plate 11 and the second perforated plate 12 respectively, and then screw on the nuts to limit the first perforated plate 11 and the second perforated plate 12 from both sides. Through the pulling screw 13, the first oblique square tube 7 and the second oblique square tube 8, a more stable triangular stable structure is formed to hold the steel structure frame, steel structure beams and steel structure roof.

[0035] Embodiment three: like Fig.13 As shown, a method for installing a prefabricated steel structure building system is used to ensure the efficiency and standardized construction of construction personnel and quickly build a steel structure building system, including the following steps: Step 1: According to the structural design requirements, each component of the steel structure building system is customized and processed to form industrialized standard building components, such as steel structure frames, steel structure beams and steel structure roofs, which can realize the standardized production of components, ensure the consistency and interchangeability of component sizes and specifications, and reduce the difficulty and error of on-site installation; Among them, the steel structure frame, steel structure beams and steel structure roof are deburred to avoid hands being cut by burrs during construction; Step 2: Lay out and locate according to the design drawings at the construction site, determine the installation positions of the steel structure frame, steel structure beams and steel structure roof, connect and install the steel structure frame, steel structure beams and steel structure roof firmly through the square connector 1, and the connection node can be reinforced by the second bolt 6. First build the first floor, and then vertically support it after completion, then build the second floor, and then build the steel structure beams on the second floor in sequence; Step 3: Install the hinged structure at the connection node of the steel structure roof, use the hinged structure to first connect the steel structure frame, and adjust the angle so that the top of the steel structure roof is aligned with the top of the steel structure beam, and use the hinged structure to reinforce between the steel structure roof and the steel structure beam. After the construction is completed, check the square connector 1 and the hinged structure one by one; Among them, the installation of the hinged structure is to use the first bolt 204 to fix the two ends of the first connecting shaft 201 to the first connecting shaft 201 and the second connecting shaft 202 respectively. Since the connection between the first connecting shaft 201 and the second connecting shaft 202 is in a folded shape, it can swing around the first bolt 204 at a certain angle to form a hinged structure. The steel structure roof is hinged with the second connecting shaft 202 and the first connecting shaft 201 to coordinate the complex inclination angle of the steel structure roof, so that it can be installed obliquely on the steel structure frame and the steel structure beam, avoiding on-site welding, and preventing safety problems that may be caused by weld defects.

[0036] The above is only an optional implementation of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An assembled steel structure building system, characterized in that: It comprises a steel structure frame, a steel structure beam and a steel structure roof which are arranged vertically in sequence, wherein a square connection piece (1) is arranged inside the steel structure frame and inside the steel structure beam, and a second connection shaft piece (202), a connection shaft fixing plate (203) and a first connection shaft piece (201) are connected to the steel structure roof in sequence, and both ends of the connection shaft fixing plate (203) are ring-shaped and a first bolt (204) for connecting to the square connection piece (1) is inserted into the ring of the connection shaft fixing plate (203); During installation, the steel structure roof is hingedly connected to the second connecting shaft (202) and the first connecting shaft (201) so that it is installed obliquely between the steel structure frame and the steel structure beam, thereby avoiding welding.

2. The assembled steel structure building system according to claim 1, characterized in that: An operating window (101) and a pin hole (102) are provided at intervals on the outside of the square connecting member (1), wherein the diameter of the operating window (101) is larger than the diameter of the pin hole (102), and the pin hole (102) is used to pass the first bolt (204).

3. The assembled steel structure building system according to claim 2, characterized in that: The steel structure frame comprises a plurality of first cross beams (301) distributed in a grid shape, wherein a first supporting column (302) is connected between two adjacent grids via the square connecting member (1), and the first supporting column (302) is connected to the second connecting shaft member (202) via the square connecting member (1) to support the steel structure roof.

4. The assembled steel structure building system according to claim 3, characterized in that: The steel structure beam comprises a second supporting column (401) and a second cross beam (402) connected to the square connecting member (1), the second supporting column (401) being aligned with the first supporting column (302), and the second cross beam (402) being connected to the second connecting shaft (202) via the square connecting member (1).

5. The assembled steel structure building system according to claim 4, characterized in that: The steel structure roof comprises an inclined beam (501) and a third cross beam (502) located between two adjacent inclined beams (501), wherein a portion of the second connecting shaft member (202) and the first connecting shaft member (201) are installed at both ends of the inclined beam (501), and another portion of the second connecting shaft member (202) and the first connecting shaft member (201) are installed between the inclined beam (501) and the second supporting column (401).

6. The assembled steel structure building system according to claim 4, characterized in that: The square connecting member (1) is provided with a second bolt (6) for passing through the pin hole (102) on the outside, and the square connecting member (1) is connected to the second connecting shaft member (202), the first cross beam member (301), the first supporting column (302), the second supporting column (401) or the second cross beam member (402) respectively through the second bolt (6).

7. The assembled steel structure building system according to claim 5, characterized in that: The second connecting shaft (202) is hingedly connected to a first oblique square tube (7) and a second oblique square tube (8) on the outside. When installing, the end of the first oblique square tube (7) away from the second connecting shaft (202) is connected to the outside of the oblique beam (501), and the end of the second oblique square tube (8) away from the second connecting shaft (202) is connected to the outside of the first cross beam (301).

8. The assembled steel structure building system according to claim 7, characterized in that: A third bolt (701) is provided at one end of the first oblique square tube (7), and a strip hole (702) is provided on the oblique beam (501). When installing, the third bolt (701) is passed through the strip hole (702) to limit the position of the first oblique square tube (7). A clamp (9) is provided at one end of the second oblique square tube (8), and the clamp (9) is used to cover the first cross beam (301) to limit the position of the second oblique square tube (8).

9. The assembled steel structure building system according to claim 8, characterized in that: One end of the first oblique square tube (7) is hinged to a first perforated plate (11), and one end of the second oblique square tube (8) is hinged to a second perforated plate (12). A pulling screw (13) is installed between the first perforated plate (11) and the second perforated plate (12). When installed, the pulling screw (13), the first oblique square tube (7) and the second oblique square tube (8) form a triangular stable structure to hold the steel structure frame, the steel structure beams and the steel structure roof.

10. A method for installing a prefabricated steel structure building system, applied to the prefabricated steel structure building system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Customize and manufacture each component of the steel structure building system, process and shape the steel structure frame, the steel structure beams and the steel structure roof in the factory, and remove burrs from the steel structure frame, the steel structure beams and the steel structure roof to avoid cutting hands by burrs during construction; Step 2: Lay out and locate the steel structure frame, the steel structure beams and the steel structure roof at the construction site according to the design drawings, determine the installation positions of the steel structure frame, the steel structure beams and the steel structure roof, connect and install the steel structure frame, the steel structure beams and the steel structure roof firmly through the square connector (1), first build the first floor, and then provide vertical support after completion, then build the second floor, and then build the steel structure beams on the second floor; Step 3: Install hinged structures at the connection nodes of the steel structure roof, connect the steel structure frame using the hinged structures, and adjust the angle so that the top of the steel structure roof is aligned with the top of the steel structure beam, and use the hinged structure to reinforce between the steel structure roof and the steel structure beam. After the construction is completed, check the square connectors (1) and the hinged structures one by one.

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