Fabricated steel beam column rigid connection joint and construction method thereof

Abstract

The invention discloses an assembly type steel beam column rigid connection joint and a construction method thereof. The assembly type steel beam column rigid connection joint comprises a stand column sleeved with a column sleeve; the three supporting layer plates are provided with inner ring holes, the column sleeves are sleeved with the supporting layer plates, and a height adjusting assembly is connected between every two adjacent supporting layer plates; the distance between the supporting layer plate on the top layer and the supporting layer plate on the middle layer is matched with the height of the first steel beam, and the end of the first steel beam is inserted between one side of the supporting layer plate on the top layer and one side of the supporting layer plate on the middle layer and connected to the column sleeve; the supporting assemblies are installed on the supporting layer plate on the top layer and the supporting layer plate on the bottom layer in a height-adjustable mode respectively. The end of the second steel beam is embedded between the two supporting assemblies and connected to the column sleeve. The problem that existing assembly type beam column joints with different beam heights are difficult to install and connect is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to an assembled steel beam-column rigid connection joint and a construction method thereof. Background Art

[0002] The technical difficulties of assembled steel structure buildings mainly focus on the beam-column connection joints. In steel structures, there are traditionally three connection forms for beam-column rigid connection joints: full penetration weld connection for the upper and lower flanges, and high-strength bolts for the web, that is, bolt-weld hybrid connection; both the flange and the web are weld connections, that is, full welding connection; high-strength bolts are used for both the upper and lower flanges and the web, that is, full bolt connection.

[0003] Adopting assembled bolt connection joints can reduce on-site welding. Components prefabricated in the factory are assembled on-site through bolt connection, and the operation process is relatively simple, improving the construction speed. However, for the installation of H-shaped steel beams with different beam heights, there is no relatively simple and firm assembled installation structure, and it is difficult to connect the outer frame when installing H-shaped steel beams with different beam heights. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides an assembled steel beam-column rigid connection joint and a construction method thereof to solve the problem of difficult installation and connection of assembled beam-column joints with different beam heights in the prior art.

[0005] To achieve the above object, an assembled steel beam-column rigid connection joint is provided, including:

[0006] A column, with a column sleeve sleeved on the column;

[0007] A three-support layer plate, with an inner ring hole opened on the support layer plate, the support layer plate sleeved on the column sleeve, and a height adjustment component connected between two adjacent support layer plates;

[0008] A first steel beam, the distance between the top support layer plate and the middle support layer plate is adapted to the height of the first steel beam, and the end of the first steel beam is inserted between one side of the top support layer plate and the middle support layer plate and connected to the column sleeve;

[0009] A support component, with the support component installed on the top support layer plate and the bottom support layer plate respectively in a height-adjustable manner;

[0010] A second steel beam, with the end of the second steel beam embedded between two support components and connected to the column sleeve.

[0011] Further, the column sleeve includes:

[0012] Two attached column plates, the two attached column plates are respectively attached to the opposite sides of the column, and connecting flanges are formed by extending oppositely on both sides of the two attached column plates;

[0013] The tie member is tied to the connecting flanges of the two attached column plates.

[0014] Furthermore, ear plates are formed on the outer sides of the connecting flanges. Horizontal through holes are provided in the ear plates, and the tie member is inserted through the horizontal through holes of the two ear plates.

[0015] Furthermore, a notch is formed on the outer edge of the upper end surface of the column sleeve. The notch is arranged in a circle along the circumferential direction of the column sleeve, and the inner edge of the top support layer plate is embedded in the notch.

[0016] Furthermore, first extension arms are respectively connected to the first sides of the top support layer plate and the middle support layer plate. The first extension arms are inclined. One end of the first extension arm extends above or below the first steel beam, and the first extension arm is connected to the first steel beam through a first attached steel plate.

[0017] Furthermore, the height adjustment assembly includes:

[0018] A first hanging rod, one end of the first hanging rod is connected to the upper support layer plate, and a vertical through hole is provided in the lower support layer plate. The other end of the first hanging rod is movably inserted through the vertical through hole;

[0019] A first top support member, which is installed on the other end of the first hanging rod in a liftable manner and supports on the lower support layer plate.

[0020] Furthermore, guide holes and vertical through holes are respectively provided on the second sides of the top support layer plate and the bottom support layer plate. The support assembly includes:

[0021] Base plates are respectively arranged on the opposite sides of the top support layer plate and the bottom support layer plate;

[0022] A second hanging rod installed on one side of the base plate, the second hanging rod is installed in the vertical through hole in a liftable manner, and one end of the second hanging rod is detachably connected to the top of the second steel beam;

[0023] A guide plate connected to the other side of the base plate, the guide plate slides in the guide hole, and the guide plate is connected with an inclined second extension arm. The second extension arm extends above or below the second steel beam and is connected to the second steel beam through a second attached steel plate.

[0024] Furthermore, the second steel beam is an I-shaped steel. Through holes are respectively provided in the upper and lower flanges of the second steel beam. The other end of the second hanging rod is movably inserted through the through hole, and a second top support member is detachably installed at the other end of the second hanging rod. The second top support member supports on the opposite sides of the upper and lower flanges.

[0025] Furthermore, the second suspension rod forms an external thread, the vertical through hole is formed with an internal thread, the upper end of the second suspension rod is rotatably connected to the substrate, and the second suspension rod is screwed into the vertical through hole.

[0026] The present invention provides a construction method for an assembled steel beam-column rigid connection joint, comprising the following steps:

[0027] Sheath the column on the column;

[0028] Sheath the three supporting laminates on the column sheath respectively, and connect the height adjustment assembly between two adjacent supporting laminates;

[0029] Adjust the distance between the top supporting laminate and the middle supporting laminate through the height adjustment assembly, so that the distance between the top supporting laminate and the middle supporting laminate is adapted to the height of the first steel beam;

[0030] Insert the end of the first steel beam between one side of the top supporting laminate and the middle supporting laminate, and connect the end of the first steel beam to the column sheath;

[0031] Install the support assemblies on the top supporting laminate and the bottom supporting laminate respectively;

[0032] Adjust the height of the support assemblies so that the distance between the two support assemblies is adapted to the height of the second steel beam;

[0033] Embed the end of the second steel beam between the two support assemblies, and connect the end of the second steel beam to the column sheath.

[0034] The beneficial effects of the present invention are as follows. For the assembled steel beam-column rigid connection joint of the present invention, it is more convenient to fix the top supporting laminate and the middle supporting laminate, reducing the difficulty during welding. The column sheath can be used to support the top supporting laminate, and the height of the height adjustment assembly can be adjusted to adapt to the first steel beam with the same height. For the assembled steel beam-column rigid connection joint of the present invention, when installing the second steel beam, the installation height of the second steel beam is adjusted through the support assembly, thereby expanding the scope of application and also improving the tolerance during installation, making the installation more convenient. For the assembled steel beam-column rigid connection joint of the present invention, when installing the steel column, the installation difficulty is reduced, and after installing the top supporting laminate, the middle supporting laminate, and the bottom supporting laminate, the fixing device is removed and recycled, which can be reused. Description of the Drawings

[0035] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present application will become more obvious:

[0036] Figure 1Structural schematic diagram of the assembled steel beam-column rigid connection joint of the embodiment of the present invention.

[0037] Figure 2 Structural schematic diagram of the column sleeve of the embodiment of the present invention.

[0038] Figure 3 Exploded structural schematic diagram of the column sleeve of the embodiment of the present invention.

[0039] Figure 4 Structural schematic diagram of the height adjustment component of the embodiment of the present invention.

[0040] Figure 5 Structural schematic diagram of the support component of the embodiment of the present invention. Detailed implementation manners

[0041] The following further elaborates the present application in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than limiting the invention. Additionally, it should be noted that for ease of description, only the parts related to the invention are shown in the drawings.

[0042] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will elaborate on the present application in detail with reference to the accompanying drawings and embodiments.

[0043] Refer to Figures 1 to 5 As shown, the present invention provides an assembled steel beam-column rigid connection joint, including: a column 1, a bearing layer plate 2, a first steel beam 3, a support component 4, and a second steel beam 5.

[0044] Specifically, the column 1 is a steel column or a precast concrete column. The cross-section of the column 1 is circular or polygonal. A column sleeve is sleeved outside the column 1. Correspondingly, the shape and size of the inner cavity of the column sleeve are adapted to the shape and size of the column 1.

[0045] In this embodiment, the column 1 is a square column.

[0046] As a preferred embodiment, the column sleeve includes an attached column plate 11 and a tie member 12.

[0047] Among them, the number of the attached column plates 11 is two. The two attached column plates 11 are respectively attached to the opposite sides of the column 1. Connecting flanges 111 are respectively formed by extending oppositely on both sides of the two attached column plates 11. The tie member 12 ties the connecting flanges 111 of the two attached column plates 11.

[0048] As a preferred embodiment, an ear plate 112 is formed on the outer side of the connecting flange 111. A horizontal perforation is provided in the ear plate 112. The tie member 12 is inserted through the horizontal perforations of the two ear plates 112.

[0049] In this embodiment, the tie member 12 is a bolt. The bolt is movably inserted through the horizontal through holes of the two ear plates 112. A screwing member is screwed to the tail end of the bolt. The screwing member and the head portion of the bolt respectively press against the opposite sides of the two ear plates 112, so that the column sleeve is locked to the column 1.

[0050] In this embodiment, the number of the supporting layer plates 2 is three. The three supporting layer plates 2 are arranged at intervals along the axial direction of the column 1. Specifically, the supporting layer plate 2 is provided with an inner ring hole. The supporting layer plate 2 is sleeved on the column sleeve. A height adjusting assembly is connected between two adjacent supporting layer plates 2.

[0051] The height adjusting assembly adjusts the distance between the top supporting layer plate 2 and the middle supporting layer plate 2 by adjusting its own height, so that the distance between the top supporting layer plate 2 and the middle supporting layer plate 2 is adapted to the height of the first steel beam 3.

[0052] The distance between the top supporting layer plate 2 and the middle supporting layer plate 2 is adapted to the height of the first steel beam 3. The end of the first steel beam 3 is inserted between one side of the top supporting layer plate 2 and the middle supporting layer plate 2 and is connected to the column sleeve.

[0053] Supporting assembly 4, the supporting assembly 4 is respectively installed on the top supporting layer plate 2 and the bottom supporting layer plate 2 in a height-adjustable manner.

[0054] The distance between the top supporting layer plate 2 and the bottom supporting layer plate 2 is adjusted by the height adjusting assembly. The distance between the supporting assemblies 4 is adjusted so that the distance between the two supporting assemblies 4 is adapted to the height of the second steel beam 5.

[0055] The end of the second steel beam 5 is embedded between the two supporting assemblies 4 and is connected to the column sleeve.

[0056] In this embodiment, the first steel beam 3 and the second steel beam 5 are respectively I-shaped steels. The I-shaped steel includes an upper flange, a lower flange and a web. The web is connected between the upper and lower flanges.

[0057] In this embodiment, a notch is formed at the outer edge of the upper end face of the column sleeve. The notch is arranged in a circle along the circumferential direction of the column sleeve. The inner edge of the top supporting layer plate 2 is embedded in the notch. Correspondingly, notches are respectively formed at the outer edges of the tops of each attached column plate 11 and the connecting flange 111. The notches of the two attached column plates 11 and their connecting flanges 111 form an annular notch. The inner edge of the top supporting layer plate 2 is embedded in the annular notch to position the top supporting layer plate 2. The inner diameter sizes of the inner ring holes of the middle supporting layer plate 2 and the bottom supporting layer plate 2 are adapted to the outer diameter size of the column sleeve.

[0058] In this embodiment, the supporting laminate 2 has a first side and a second side opposite to each other in the length direction of its cross-section, and the supporting laminate 2 also has a third side and a fourth side opposite to each other in the width direction of its cross-section. The first steel beam 3 is arranged on the first side of the supporting laminate 2, while the second steel beam 5 is arranged on the second side of the supporting laminate 2. An avoidance notch is formed on the second side of the middle supporting laminate 2, and the end of the second steel beam 5 is movably arranged in the avoidance notch.

[0059] As a preferred embodiment, first extension arms 23 are respectively connected to the first side of the top supporting laminate 2 and the first side of the middle supporting laminate 2. The first extension arms 23 are arranged obliquely. One end of the first extension arm 23 extends above or below the first steel beam 3. The first extension arm 23 is connected to the first steel beam 3 through a first attaching beam plate 24.

[0060] As a preferred embodiment, the height adjustment assembly includes: a first suspension rod 21 and a first top support 22.

[0061] The first suspension rod 21 is arranged vertically. The upper end of the first suspension rod 21 is connected to the upper supporting laminate 2. A vertical through hole is formed in the lower supporting laminate 2. The lower end of the first suspension rod 21 movably passes through the vertical through hole.

[0062] The first top support 22 is installed on the lower end of the first suspension rod 21 in a liftable manner and supports the lower supporting laminate 2.

[0063] In this embodiment, an external thread is formed at the lower end of the first suspension rod 21. A threaded hole is formed in the first top support 22. The first top support 22 is screwed onto the lower end of the first suspension rod 21.

[0064] In this embodiment, a guiding hole and a vertical through hole are respectively formed on the second side of the top supporting laminate 2 and the second side of the bottom supporting laminate 2. The guiding hole is in a long strip shape. The vertical through hole is arranged on the side of the guiding hole away from the column sleeve.

[0065] As a preferred embodiment, the support assembly 4 includes: a base plate 41, a second suspension rod 42, and a guiding plate 43.

[0066] Among them, base plates 41 are respectively arranged on the opposite sides of the top supporting laminate 2 and the bottom supporting laminate 2.

[0067] The second suspension rod 42 is installed on one side of the base plate 41. The second suspension rod 42 is installed in the vertical through hole in a liftable manner, and one end of the second suspension rod 42 is detachably connected to the top of the second steel beam 5.

[0068] The guide plate 43 is connected to the other side of the base plate 41. The guide plate 43 and the base plate 41 form an L-shaped structural plate. The guide plate 43 is slidably disposed in the guide hole. The guide plate 43 is connected with an inclined second extension arm 45. The second extension arm 45 extends above or below the second steel beam 5 and is connected to the second steel beam 5 through a second attaching beam plate 46.

[0069] Through holes are respectively formed in the upper and lower flanges of the second steel beam 5. The other end of the second suspender 42 is movably inserted through the through holes. A second top support member 44 is detachably installed at the other end of the second suspender 42. The second top support member 44 supports on the opposite sides of the upper and lower flanges.

[0070] As a preferred embodiment, the second suspender 42 forms an external thread. An internal thread is formed in the vertical through hole. The upper end of the second suspender 42 is rotatably connected to the base plate 41. The second suspender 42 is screwed into the vertical through hole.

[0071] In this embodiment, the second top support member 44 is provided with a threaded hole. The second top support member 44 is screwed to the other end of the second suspender 42.

[0072] The present invention provides a construction method for an assembled steel beam-column rigid connection joint, including the following steps:

[0073] S1. Sleeve the column 1 on the column 1.

[0074] S2. Sleeve the three support layer plates 2 on the column sleeve respectively, and connect the height adjustment components between two adjacent support layer plates 2.

[0075] S3. Adjust the distance between the top support layer plate 2 and the middle support layer plate 2 through the height adjustment component, so that the distance between the top support layer plate 2 and the middle support layer plate 2 is adapted to the height of the first steel beam 3.

[0076] S4. Insert the end of the first steel beam 3 between one side of the top support layer plate 2 and the middle support layer plate 2, and connect the end of the first steel beam 3 to the column sleeve.

[0077] S5. Install the support components 4 on the top support layer plate 2 and the bottom support layer plate 2 respectively.

[0078] S6. Adjust the height of the support components 4, so that the distance between the two support components 4 is adapted to the height of the second steel beam 5.

[0079] S7. Insert the end of the second steel beam 5 between the two support components 4, and connect the end of the second steel beam 5 to the column sleeve.

[0080] When installing the steel beam, first sleeved the column sleeve on the column 1 and fixed the column sleeve and the column 1 with the tie member 12, and successively sleeved the bottom support layer plate 2, the middle support layer plate 2 and the top support layer plate 2 on the outer surface of the column sleeve. Since the inner diameter of the top support layer plate 2 is smaller than the diameter of the column sleeve, the top support layer plate 2 is sleeved in the notch of the column sleeve, so as to limit the height of the top support layer plate 2 by means of the column sleeve.

[0081] Subsequently, insert the first suspension rod 21 into the vertical perforations and the interior of the vertical perforations of two adjacent support layer plates 2. After the first suspension rod 21 is inserted, it is hung on the top support layer plate 2 by the restriction of the baffle at the top of the first suspension rod 21. Then screw the first top support member 22 onto the lower end of the first suspension rod 21 to support the middle support layer plate 2 by means of the first top support member 22.

[0082] Subsequently, adjust the height of the first top support member 22 according to the height of the first steel beam 3, so that the distance between the top support layer plate 2 and the middle support layer plate 2 is the same as the height of the first steel beam 3. Subsequently, weld the top support layer plate 2 and the middle support layer plate 2 to the outer surface of the column sleeve by means of a welding tool. After welding is completed, recover by successively removing the first top support member 22 and the first suspension rod 21. Through the above structure, it is possible to make it more convenient to fix the top support layer plate 2 and the middle support layer plate 2, reduce the difficulty during welding, form support for the top support layer plate 2 by means of the column sleeve, support the middle support layer plate 2 by means of the first suspension rod 21 and the first top support member 22, and adapt to the first steel beam 3 with the same height by adjusting the height of the first top support member 22.

[0083] After the first steel beam 3 is placed, connect the middle support layer plate 2, the top support layer plate 2 and the first steel beam 3 together by means of fixing bolts and in cooperation with the first extension arm 23 and the first attaching beam plate 24. Subsequently, support the bottom support layer plate 2 by means of the cooperation of the lower first suspension rod 21 and the first top support member 22 with the middle support layer plate 2, and weld the bottom support layer plate 2 to the outer surface of the column sleeve. Subsequently, support the bottom support layer plate 2 by means of the lower first suspension rod 21 and the first top support member 22, and determine the bottom surface height of the second steel beam 5. Subsequently, rotate the second suspension rod 42 to adjust the position of the guide plate 43 in the guide hole, and then adjust the position of the second attaching beam plate 46 on the second extension arm 45, so that the distance between the two second attaching beam plates 46 is adapted to the height of the second steel beam 5. At this time, rotate the second top support member 44 located on the second suspension rod 42, and make the lower surface of the second top support member 44 contact the opposite side surfaces of the upper and lower flanges of the second steel beam 5 to fix the second steel beam 5.

[0084] Through the above structure, when installing the second steel beam 5, the installation height of the second steel beam 5 can be adjusted, thereby improving the applicable range. At the same time, the tolerance during installation can also be improved, making the installation more convenient. The second steel beam 5 and the first steel beam 3 can be supported by the second extension arm 45 and the first extension arm 23 to improve their stability.

[0085] For the prefabricated steel beam-column rigid connection joint of the present invention, it is more convenient to fix the top support layer plate and the middle support layer plate, reducing the difficulty during welding. The column sleeve can be used to support the top support layer plate, and the middle support layer plate can be supported by the first suspension rod and the first top support member. Moreover, the height of the first top support member can be adjusted to adapt to the first steel beam with the same height.

[0086] For the prefabricated steel beam-column rigid connection joint of the present invention, when installing the second steel beam, the installation height of the second steel beam can be adjusted, thereby improving the applicable range. At the same time, the tolerance during installation can also be improved, making the installation more convenient. The second steel beam and the first steel beam can be supported by the first extension arm and the second extension arm to improve their stability.

[0087] For the prefabricated steel beam-column rigid connection joint of the present invention, after installing the top support layer plate, the middle support layer plate, and the bottom support layer plate, the fixing device is removed and recycled, and can be reused.

[0088] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features. At the same time, it should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An assembled steel beam-column rigid connection joint, characterized in that Comprising: A column, with a column sleeve sleeved on the column; A triple-supporting layer plate, the supporting layer plate is provided with an inner ring hole, the supporting layer plate is sleeved on the column sleeve, and a height-adjusting component is connected between two adjacent supporting layer plates; A first steel beam, the distance between the top supporting layer plate and the middle supporting layer plate is adapted to the height of the first steel beam, and the end of the first steel beam is inserted between one side of the top supporting layer plate and the middle supporting layer plate and connected to the column sleeve; A supporting component, the supporting component is respectively and height-adjustably installed on the top supporting layer plate and the bottom supporting layer plate; A second steel beam, the end of the second steel beam is embedded between two supporting components and connected to the column sleeve.

2. The fabricated steel beam-column rigid connection joint according to claim 1, characterized in that, The column sleeve includes: Two attached column plates, the two attached column plates are respectively attached to the opposite sides of the column, and connection flanges are respectively formed by extending oppositely on both sides of the two attached column plates; A tie member, tying the connection flanges of the two attached column plates.

3. The prefabricated steel beam-column rigid connection joint according to claim 2, characterized in that, An ear plate is formed on the outer side of the connection flange, a horizontal through hole is provided in the ear plate, and the tie member passes through the horizontal through holes of the two ear plates.

4. The fabricated steel beam-column rigid connection joint according to claim 1, characterized in that A notch is formed on the outer edge of the upper end surface of the column sleeve, the notch is arranged in a circle along the circumferential direction of the column sleeve, and the inner edge of the top supporting layer plate is embedded in the notch.

5. The prefabricated steel beam-column rigid connection joint according to claim 1, characterized in that, A first extension arm is respectively connected to the first side of the top supporting layer plate and the first side of the middle supporting layer plate, the first extension arm is obliquely arranged, one end of the first extension arm extends above or below the first steel beam, and the first extension arm is connected to the first steel beam through a first attached beam plate.

6. The prefabricated steel beam-column rigid connection joint according to claim 1, wherein The height-adjusting component includes: A first suspension rod, one end of the first suspension rod is connected to the upper supporting layer plate, a vertical through hole is provided in the lower supporting layer plate, and the other end of the first suspension rod is movably inserted into the vertical through hole; A first jacking member, which is liftably installed at the other end of the first suspension rod and supports the lower supporting layer plate.

7. The prefabricated steel beam-column rigid connection joint according to claim 1, wherein, A guiding hole and a vertical through hole are respectively provided on the second side of the top supporting layer plate and the second side of the bottom supporting layer plate, and the supporting component includes: A base plate, the base plates are respectively arranged on the opposite sides of the top supporting layer plate and the bottom supporting layer plate; A second suspension rod installed on one side of the base plate, the second suspension rod is liftably installed in the vertical through hole, and one end of the second suspension rod is detachably connected to the top of the second steel beam; A guiding plate connected to the other side of the base plate, the guiding plate slides in the guiding hole, the guiding plate is connected with an obliquely arranged second extension arm, and the second extension arm extends above or below the second steel beam and is connected to the second steel beam through a second attached beam plate.

8. The prefabricated steel beam-column rigid connection joint according to claim 7, characterized in that, The second steel beam is an I-shaped steel, through holes are respectively provided in the upper and lower flange plates of the second steel beam, the other end of the second suspension rod is movably inserted into the through hole, and a second jacking member is detachably installed at the other end of the second suspension rod, and the second jacking member supports the opposite sides of the upper and lower flange plates.

9. The prefabricated steel beam-column rigid connection joint according to claim 8, characterized in that The second suspension rod forms an external thread, the vertical through hole forms an internal thread, the upper end of the second suspension rod is rotatably connected to the base plate, and the second suspension rod is screwed into the vertical through hole.

10. A construction method for an assembled steel beam-column rigid connection joint as described in any one of claims 1 to 9, characterized in that, Including the following steps: Sleeving the column sleeve on the column; Sheath the three supporting laminates on the column sleeve respectively, and connect the height adjustment assembly between two adjacent supporting laminates; Adjust the distance between the top supporting laminate and the middle supporting laminate through the height adjustment assembly, so that the distance between the top supporting laminate and the middle supporting laminate is adapted to the height of the first steel beam; Insert the end of the first steel beam between one side of the top supporting laminate and the middle supporting laminate, and connect the end of the first steel beam to the column sleeve; Install the support assemblies on the top supporting laminate and the bottom supporting laminate respectively; Adjust the height of the support assemblies, so that the distance between the two support assemblies is adapted to the height of the second steel beam; Embed the end of the second steel beam between the two support assemblies, and connect the end of the second steel beam to the column sleeve.

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