Assembly type steel structure steel beam outdoor heat insulation cantilever steel beam connecting structure

Abstract

The utility model relates to the technical field of assembly type steel structure buildings, and particularly discloses an assembly type steel structure steel beam outdoor heat insulation cantilever steel beam connecting structure which comprises a first end plate, a second end plate, a glass fiber reinforced plastic block and a first stainless steel fixing piece. The first stainless steel fixing piece is used for fixing; one end, deviating from the glass fiber reinforced plastic block, of the first end plate is fixedly connected with the outdoor steel cantilever beam; one end, deviating from the glass fiber reinforced plastic block, of the second end plate is fixedly connected with a building surrounding steel beam. The heat transfer between the outdoor steel cantilever beam and the steel beams around the building is reduced, the heat bridge effect is effectively reduced, then the heat loss of the fabricated steel structure building is reduced, and the energy-saving performance of the fabricated steel structure building is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated steel structure buildings, and in particular to an outdoor thermally insulated cantilevered steel beam connection structure of a prefabricated steel structure. Background Art

[0002] Steel structure buildings are one of the building structure forms that my country has explicitly required to vigorously develop. They can be divided into traditional steel structure buildings and prefabricated steel structure buildings. Steel structure buildings have the advantages of mature structural design, convenient production, comprehensive construction measures, fast construction period, light weight, less waste emissions, and good durability. They have been widely used in my country's industrial buildings and civil industrial buildings.

[0003] In prefabricated steel structure buildings, the requirements for energy conservation are becoming increasingly higher, and ultra-low energy consumption and near-zero energy consumption have been proposed. At present, conventional outdoor steel cantilever beams are in direct contact with the surrounding steel beams of the building, and are connected or welded using high-strength carbon steel bolts. The heat transfer coefficient of carbon steel is generally 60W / (m 2 ·K), has strong heat conduction and is one of the significant thermal bridges in the entire building. Utility Model Content

[0004] In order to reduce the thermal bridge effect between the outdoor cantilevered steel beams and the steel beams around the building and reduce the heat loss of the prefabricated steel structure building, the present application provides an outdoor thermal insulation cantilevered steel beam connection structure for the prefabricated steel structure steel beams.

[0005] The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure provided in this application adopts the following technical solutions:

[0006] The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure includes a first end plate, a second end plate, a fiberglass block and a first stainless steel fixing member. The first end plate and the second end plate are respectively abutted against the opposite ends of the fiberglass block. The first stainless steel fixing member passes through the second end plate, the fiberglass block and the first end plate in sequence. The first stainless steel fixing member is used to fix the first end plate, the fiberglass block and the second end plate. The axis of the first stainless steel fixing member is perpendicular to the first end plate and the second end plate. One end of the first end plate is welded to the outdoor steel cantilever beam, and one end of the second end plate is welded to the steel beams around the building.

[0007] By adopting the above technical solution, the outdoor steel cantilever beam is connected to the surrounding steel beams of the building through the first end plate, the glass fiber reinforced plastic block and the second end plate, avoiding direct contact between the outdoor steel cantilever beam and the surrounding steel beams of the building. In addition, the heat transfer coefficient of the glass fiber reinforced plastic material is 0.25W / (m 2 ·K), the heat transfer coefficient of stainless steel is 15W / (m 2·K), which can reduce the heat transfer between the outdoor steel cantilever beams and the surrounding steel beams of the building, effectively reduce the thermal bridge effect, and thus reduce the heat loss of the prefabricated steel structure building.

[0008] Optionally, the steel beams around the building are I-beams, and the steel beams around the building include a first flange, a second flange and a web. The web is vertically arranged, and the first flange and the second flange are respectively welded vertically to the two ends of the web; the ends of the first flange and the second flange close to the outdoor steel cantilever beam are respectively welded to the end of the second end plate away from the fiberglass block.

[0009] By adopting the above technical solution, the second end plate is welded to the first flange and the second flange of the steel beams around the building close to one end of the outdoor steel cantilever beam at the same time, which can effectively increase the connection strength between the outdoor steel cantilever beam and the steel beams around the building, reduce the risk of deformation of the steel beams around the building, and facilitate construction, which helps to reduce construction time and cost.

[0010] Optionally, stiffening ribs are fixed on the inner side of the steel beams around the building, the stiffening ribs are perpendicularly abutted against the web, the two short sides of the stiffening ribs are respectively abutted against the inner sides of the first flange and the second flange, and the stiffening ribs are respectively welded to the first flange, the second flange, the web and the end of the second end plate facing away from the fiberglass block.

[0011] By adopting the above technical solution, stiffening ribs are provided on the inner side of the steel beams around the building, and the stiffening ribs are welded to the steel beams around the building, which helps to improve the strength and stability of the steel beams around the building; and the second end plate is welded to the first flange, the second flange and the stiffening ribs at the same time, which can improve the connection strength between the second end plate and the steel beams around the building, and increase the connection strength between the outdoor steel cantilever beams and the steel beams around the building.

[0012] Optionally, a plurality of stiffening ribs are provided, and the plurality of stiffening ribs are respectively provided on both sides of the web, and the stiffening ribs on each side are evenly provided along the length direction of the steel beams around the building.

[0013] By adopting the above technical solution, multiple stiffening ribs are evenly arranged on both sides of the web, which can effectively improve the bearing capacity and stability of the steel beams around the building.

[0014] Optionally, an insulation layer is provided between two adjacent stiffening ribs on the side of the steel beams surrounding the building close to the outdoors.

[0015] By adopting the above technical solution, the setting of the insulation layer can further reduce the transfer of indoor and outdoor heat, effectively maintain the stability of indoor temperature, and increase the energy-saving performance of prefabricated steel structure buildings.

[0016] Optionally, the first stainless steel fixing member includes a first stainless steel bolt and a first stainless steel nut, the first stainless steel bolt passes through the second end plate, the fiberglass block, and the first end plate in sequence and is threadedly connected to the first stainless steel nut, and the end of the first stainless steel nut close to the steel beams around the building abuts against the end of the first end plate away from the fiberglass block.

[0017] By adopting the above technical solution, the first stainless steel nut is located at one end of the first end plate close to the outdoor steel cantilever beam, which facilitates the installation and fixation of the first stainless steel fixing piece and facilitates construction.

[0018] Optionally, a plurality of the first stainless steel fixing members are provided, and the plurality of the first stainless steel fixing members are evenly distributed.

[0019] By adopting the above technical solution, multiple evenly distributed first stainless steel fixing parts can increase the connection stability between the fiberglass block, the first end plate and the second end plate, making the connection between the outdoor steel cantilever beam and the steel beams around the building more stable.

[0020] Optionally, it also includes a third end plate, a fourth end plate and a second stainless steel fixing piece, the third end plate and the fourth end plate abut each other and are fixedly connected by the second stainless steel fixing piece, and the axis of the second stainless steel fixing piece is perpendicular to the third end plate and the fourth end plate; the third end plate is welded to the end of the steel beam around the building away from the second end plate, and an indoor steel secondary beam is installed on the indoor side of the steel beam around the building, and the fourth end plate is welded to the indoor steel secondary beam.

[0021] By adopting the above technical solution, the indoor steel secondary beam can be fixedly connected to the indoor side of the steel beams around the building through the use of the third end plate, the fourth end plate and the second stainless steel fixing piece.

[0022] Optionally, a plurality of the second stainless steel fixing members are provided, and the plurality of second stainless steel fixing members are evenly distributed.

[0023] By adopting the above technical solution, multiple evenly distributed second stainless steel fixing parts can improve the connection stability between the third end plate and the fourth end plate, making the connection between the indoor steel secondary beam and the surrounding steel beams of the building more stable.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting the first end plate, the glass fiber reinforced plastic block and the second end plate, the outdoor steel cantilever beam is thermally connected with the steel beams around the building, avoiding direct contact between the outdoor steel cantilever beam and the steel beams around the building. In addition, the heat transfer coefficient of the glass fiber reinforced plastic material is 0.25W / (m 2 ·K), the heat transfer coefficient of stainless steel is 15W / (m 2·K), which can reduce the heat transfer between the outdoor steel cantilever beams and the surrounding steel beams of the building, effectively reducing the thermal bridge effect, thereby reducing the heat loss of the prefabricated steel structure building.

[0026] 2. Multiple stiffening ribs are evenly arranged on both sides of the web of the steel beams surrounding the building. The second end plate is welded to the first flange, the second flange and the stiffening ribs at the same time, which can improve the connection strength between the second end plate and the steel beams surrounding the building, and increase the connection strength between the outdoor steel cantilever beam and the steel beams surrounding the building.

[0027] 3. The third end plate, the fourth end plate and the second stainless steel fixing piece are used in conjunction with each other to fix the indoor secondary steel beam to the indoor side of the steel beams surrounding the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the overall structure of the embodiment of the present application;

[0029] Figure 2 It is a top view of the overall structure of an embodiment of the present application.

[0030] Figure numerals: 1. Outdoor steel cantilever beam; 2. Steel beam around the building; 21. First flange; 22. Second flange; 23. Web; 24. Stiffener; 3. First end plate; 4. Fiberglass block; 5. Second end plate; 6. First stainless steel fixing piece; 7. Third end plate; 8. Fourth end plate; 9. Second stainless steel fixing piece; 10. Indoor steel secondary beam; 11. Insulation layer. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-2 This application is described in further detail.

[0032] The embodiment of the present application discloses an outdoor thermal insulation cantilever steel beam connection structure of an assembled steel structure steel beam, referring to Figure 1 and Figure 2 , including a first end plate 3, a second end plate 5, a fiberglass block 4 and a first stainless steel fixing piece 6. The first end plate 3 and the second end plate 5 are respectively clamped at the opposite ends of the fiberglass block 4 and are fixed through the first stainless steel fixing piece 6. The axis of the first stainless steel fixing piece 6 is perpendicular to the first end plate 3 and the second end plate 5; the end of the first end plate 3 away from the fiberglass block 4 is welded to the outdoor steel cantilever beam 1, and the end of the second end plate 5 away from the fiberglass block 4 is welded to the outer side of the steel beam 2 around the building, so as to realize the thermal insulation connection between the outdoor steel cantilever beam 1 and the steel beam 2 around the building.

[0033] The heat transfer coefficient of FRP material is 0.25W / (m 2 ·K), the heat transfer coefficient of stainless steel is 15W / (m 2K) The glass fiber reinforced plastic block 4 and the first stainless steel fixing member 6 are used together and installed between the outdoor steel cantilever beam 1 and the surrounding steel beams 2 of the building. This avoids direct contact between the outdoor steel cantilever beam 1 and the surrounding steel beams 2 of the building, reduces heat transfer between the outdoor steel cantilever beam 1 and the surrounding steel beams 2 of the building, effectively reduces the thermal bridge effect, and thus reduces heat loss of the prefabricated steel structure building.

[0034] Specifically, the first stainless steel fixing member 6 comprises a first stainless steel bolt and a first stainless steel nut. The first stainless steel bolt sequentially passes through the second end plate 5, the fiberglass block 4, and the first end plate 3, and is threadedly connected to the first stainless steel nut. The end of the first stainless steel nut, which is closer to the surrounding steel beam 2 of the building, abuts against the end of the first end plate 3, which is away from the fiberglass block 4, facilitating the installation and fixation of the first stainless steel fixing member 6. Furthermore, the small penetration area of ​​the first stainless steel fixing member 6 helps reduce the heat transfer coefficient between the outdoor steel cantilever beam 1 and the surrounding steel beams 2 of the building.

[0035] Multiple first stainless steel fixing members 6 are provided, and the multiple first stainless steel fixing members 6 are evenly distributed to increase the connection stability between the fiberglass reinforced plastic block 4 and the first end plate 3 and the second end plate 5. In this embodiment, eight first stainless steel fixing members 6 are provided, and the eight first stainless steel fixing members 6 are arranged in two rows along the horizontal direction, with four first stainless steel fixing members 6 installed in each row, and the four first stainless steel fixing members 6 in each row are evenly distributed along the horizontal direction.

[0036] The surrounding steel beam 2 is an I-beam, which includes a first flange 21, a second flange 22, and a web 23. The web 23 is vertically arranged, and the first flange 21 and the second flange 22 are respectively welded perpendicularly to the ends of the web 23. The ends of the first flange 21 and the second flange 22 facing the outside are respectively welded to the ends of the second end plate 5 facing away from the fiberglass block 4, ensuring a stable connection between the second end plate 5 and the surrounding steel beam 2.

[0037] A stiffening rib 24 is fixed to the inner side of the steel beam 2 surrounding the building, and the stiffening rib 24 is perpendicularly abutted against the web 23. In this embodiment, multiple stiffening ribs 24 are provided, and the multiple stiffening ribs 24 are respectively located on both sides of the web 23. The stiffening ribs 24 on each side are evenly arranged along the length of the web 23, which is used to enhance the strength and stability of the steel beam 2 surrounding the building. At the same time, the stiffening rib 24 on the outdoor side of the steel beam 2 surrounding the building is welded to the end of the second end plate 5 facing away from the fiberglass block 4, so that the second end plate 5 and the steel beam 2 surrounding the building have multiple connection points, which helps to improve the connection stability between the second end plate 5 and the steel beam 2 surrounding the building, and makes the connection between the outdoor steel cantilever beam 1 and the steel beam 2 surrounding the building more stable.

[0038] The two short sides of the stiffening rib 24 are respectively abutted against the inner sides of the first flange 21 and the second flange 22 and welded to fix. At the same time, the end of the stiffening rib 24 close to the web 23 is welded to the web 23, so that there are three welding surfaces between the stiffening rib 24 and the steel beams 2 around the building, which are used to enhance the bearing capacity and stability of the steel beams 2 around the building, and also improve the connection strength between the steel beams 2 around the building and the second end plate 5.

[0039] To improve the thermal insulation performance of prefabricated steel structures and further reduce heat loss, the gaps between adjacent stiffening ribs 24 on the exterior side of the steel beams 2 surrounding the building are filled with an insulation layer 11. This insulation layer 11 further reduces heat transfer between indoor and outdoor, maintains a stable indoor temperature, and enhances the energy-saving performance of the prefabricated steel structure. In this embodiment, the insulation layer 11 can be made of spray-on polyurethane foam.

[0040] An indoor secondary steel beam 10 is mounted on the indoor side of the perimeter steel beam 2. A fourth end plate 8 is welded to the end of the indoor secondary steel beam 10 near the perimeter steel beam 2. A third end plate 7 is secured to the indoor side of the perimeter steel beam 2. The third end plate 7 is welded to the indoor ends of the first and second flanges 21 and 22, respectively. Furthermore, stiffening ribs 24 on the indoor side of the perimeter steel beam 2 are welded to the third end plate 7.

[0041] One end of the third end plate 7 facing away from the web plate 23 abuts against the end of the fourth end plate 8 facing away from the indoor steel secondary beam 10, and is fixed by a second stainless steel fixing piece 9, the axis of which is perpendicular to the third end plate 7 and the fourth end plate 8; through the cooperation between the third end plate 7, the fourth end plate 8 and the second stainless steel fixing piece 9, the indoor steel secondary beam 10 is fixedly connected to the indoor side of the steel beams 2 surrounding the building.

[0042] The second stainless steel fixing part 9 includes a second stainless steel bolt and a second stainless steel nut. The second stainless steel bolt passes through the third end plate 7 and the fourth end plate 8 in sequence and is threadedly connected to the second stainless steel nut. The end of the second stainless steel nut close to the steel beam 2 around the building abuts against the end of the fourth end plate 8 close to the indoor steel secondary beam 10.

[0043] Multiple second stainless steel fixing members 9 are provided, and the multiple second stainless steel fixing members 9 are evenly distributed to enhance the connection stability between the third end plate 7 and the fourth end plate 8. In this embodiment, there are eight second stainless steel fixing members 9, and the eight second stainless steel fixing members 9 are arranged in two rows along the horizontal direction, with four second stainless steel fixing members 9 installed in each row, and the four second stainless steel fixing members 9 in each row are evenly distributed.

[0044] The disclosed embodiment of the present application discloses an outdoor thermally insulated cantilever steel beam connection structure for a prefabricated steel structure as follows: a first end plate 3, a second end plate 5, a fiberglass block 4, and a first stainless steel fixing member 6 are disposed between the surrounding steel beam 2 and the outdoor steel cantilever beam 1. The first end plate 3 and the second end plate 5 are respectively clamped at opposite ends of the fiberglass block 4 and secured by the first stainless steel fixing member 6, the axis of which is arranged horizontally. The end of the first end plate 3 facing away from the fiberglass block 4 is welded to the outdoor steel cantilever beam 1, and the end of the second end plate 5 facing away from the fiberglass block 4 is welded to the first flange 21 and the second flange 22 of the surrounding steel beam 2, thereby securing the outdoor steel cantilever beam 1 to the outside of the surrounding steel beam 2. This embodiment avoids direct contact between the outdoor steel cantilever beam 1 and the surrounding steel beam 2, and reduces the heat transfer coefficient by approximately 60%-80% compared to conventional connection structures, effectively reducing heat loss and thermal bridge effects in prefabricated steel structures, thereby enhancing the energy-saving performance of prefabricated steel structures.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure is characterized by: The invention comprises a first end plate (3), a second end plate (5), a glass fiber reinforced plastic block (4) and a first stainless steel fixing member (6), wherein the first end plate (3) and the second end plate (5) are respectively abutted against two opposite ends of the glass fiber reinforced plastic block (4), and the first stainless steel fixing member (6) passes through the second end plate (5), the glass fiber reinforced plastic block (4) and the first end plate (3) in sequence, and the first stainless steel fixing member (6) is used for fixing the first end plate (3), the glass fiber reinforced plastic block (4) and the second end plate (5), and the axis of the first stainless steel fixing member (6) is perpendicular to the first end plate (3) and the second end plate (5); one end of the first end plate (3) is welded to the outdoor steel cantilever beam (1), and one end of the second end plate (5) is welded to the steel beam (2) surrounding the building.

2. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 1 is characterized in that: The steel beam (2) surrounding the building is an I-beam, and the steel beam (2) surrounding the building comprises a first flange (21), a second flange (22) and a web (23). The web (23) is vertically arranged, and the first flange (21) and the second flange (22) are respectively welded vertically to the two ends of the web (23); the ends of the first flange (21) and the second flange (22) close to the outdoor steel cantilever beam (1) are respectively welded to the ends of the second end plate (5) facing away from the glass fiber reinforced plastic block (4).

3. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 2 is characterized in that: A stiffening rib (24) is fixed on the inner side of the steel beam (2) surrounding the building. The stiffening rib (24) is perpendicularly abutted against the web (23). Two short sides of the stiffening rib (24) are respectively abutted against the inner sides of the first flange (21) and the second flange (22). The stiffening rib (24) is respectively welded to the first flange (21), the second flange (22), the web (23) and the end of the second end plate (5) facing away from the glass fiber reinforced plastic block (4).

4. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 3 is characterized in that: A plurality of stiffening ribs (24) are provided, and the plurality of stiffening ribs (24) are respectively provided on both sides of the web (23), and the stiffening ribs (24) on each side are evenly provided along the length direction of the steel beams (2) surrounding the building.

5. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 4 is characterized in that: A thermal insulation layer (11) is provided between two adjacent stiffening ribs (24) on the side of the steel beam (2) surrounding the building close to the outdoors.

6. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 1 is characterized in that: The first stainless steel fixing member (6) comprises a first stainless steel bolt and a first stainless steel nut, wherein the first stainless steel bolt passes through the second end plate (5), the glass fiber reinforced plastic block (4), and the first end plate (3) in sequence and is threadedly connected to the first stainless steel nut, wherein an end of the first stainless steel nut close to the steel beam (2) surrounding the building abuts against an end of the first end plate (3) facing away from the glass fiber reinforced plastic block (4).

7. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 6 is characterized in that: A plurality of the first stainless steel fixing members (6) are provided, and the plurality of the first stainless steel fixing members (6) are evenly distributed.

8. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 1 is characterized in that: It also includes a third end plate (7), a fourth end plate (8) and a second stainless steel fixing member (9), wherein the third end plate (7) and the fourth end plate (8) are in contact with each other and are fixedly connected by the second stainless steel fixing member (9), and the axis of the second stainless steel fixing member (9) is perpendicular to the third end plate (7) and the fourth end plate (8); the third end plate (7) is welded to the end of the building surrounding steel beam (2) away from the second end plate (5), and the indoor side of the building surrounding steel beam (2) is installed with an indoor steel secondary beam (10), and the fourth end plate (8) is welded to the indoor steel secondary beam (10).

9. The prefabricated steel structure steel beam outdoor thermal insulation cantilever steel beam connection structure according to claim 8, characterized in that: A plurality of the second stainless steel fixing members (9) are provided, and the plurality of the second stainless steel fixing members (9) are evenly distributed.

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