A steel frame lightweight roof panel and H-shaped steel beam connection structure

Abstract

A connection structure between a steel frame lightweight roof panel and an H-shaped steel beam belongs to the technical field of building structure connection, and includes an H-shaped steel beam, a connector, and a steel frame lightweight roof panel. The two connectors are arranged opposite to each other on both sides of the top flange of the H-shaped steel beam. A hollow square steel frame is provided between the first connection sections of the two connectors. The two first connection sections and the hollow square steel frame are fixedly connected by long high-strength bolts that pass through horizontally. The third connection section is arranged vertically downward and fixedly connected to the web of the H-shaped steel beam by short high-strength bolts. The present invention adopts a connection structure of the connector to avoid opening holes in the flange of the H-shaped steel beam, which leads to weakening of the flange strength of the H-shaped steel beam. At the same time, the card slot of the connector is connected to the high-strength bolt and the flange of the H-shaped steel beam, ensuring a tight connection between the steel frame lightweight roof panel and the H-shaped steel beam, thereby improving the integrity of the structure.

Description

Technical Field

[0001] The invention belongs to the technical field of building structure connection, and particularly relates to a connection structure of a steel frame lightweight roof panel and an H-shaped steel beam. Background Art

[0002] Prefabricated steel structure buildings are driving the rapid development of the construction industry because of their advantages such as easy installation, fast construction speed, saving construction time and construction costs, and resource recycling. It is a green and environmentally friendly building structure model and a research direction for my country to achieve industrial development in the future.

[0003] Prefabricated steel structures offer the following advantages: ① Steel structures are energy-efficient and environmentally friendly. Steel is recyclable and reusable. ② Steel structures offer excellent seismic resistance. Their light weight and high strength effectively reduce earthquake forces. ③ They are highly industrialized. Most steel structures are manufactured in factories, facilitating my country's development of industrialized buildings. ④ Construction pollution is minimal. Components are prefabricated in factories and hoisted and connected on-site. ⑤ Flexibility and convenience in spatial layout.

[0004] The mechanical connection between steel frame lightweight roof panels and H-shaped steel beams is one of the main connection methods currently studied in prefabricated steel structure buildings. It has good integrity and earthquake resistance, simple on-site construction, short construction period, no welding required, material savings, and mechanized production advantages, making this connection method more widely studied and applied. Currently, the most commonly used connection methods between steel frame lightweight roof panels and steel beams are welding and mechanical connection:

[0005] Welding is the most widely used method due to its simple manufacturing process and ease of on-site welding. The process involves hoisting prefabricated roof panels on-site and then welding them to the steel beams. This often leads to cracks in the welds, reduced bearing capacity or deformation of the steel beams due to welding stress, and the inability of the roof panels to expand and contract freely due to welding, resulting in complex forces between the roof panels and the steel beams. This creates numerous uncertainties and can lead to failure of the roof panel welds.

[0006] Mechanical connection is easy to construct and does not require welding, which avoids safety hazards caused by defects in welds. However, mechanical connection requires drilling holes at the flange. When there are many holes, the cross-sectional strength of the drilled section is greatly weakened, and the integrity is poor and the seismic performance is poor.

[0007] Both of the above-mentioned two connections have inevitable disadvantages. Therefore, it is necessary to provide a new connection structure to avoid on-site welding and poor integrity, and truly achieve the convenience and integrity of the assembly structure. Summary of the Invention

[0008] Based on the above technical problems, the present invention proposes a connection structure between a steel frame lightweight roof panel and an H-shaped steel beam. The connection structure adopts a connecting piece, which avoids opening holes on the flange of the H-shaped steel beam, resulting in the weakening of the flange strength of the H-shaped steel beam. At the same time, the slot of the connecting piece is connected with the high-strength bolts and the flange of the H-shaped steel beam, ensuring the tight connection between the steel frame lightweight roof panel and the H-shaped steel beam, thereby improving the integrity of the structure.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] A steel frame lightweight roof panel and H-shaped steel beam connection structure, including an H-shaped steel beam, a connecting piece, and a steel frame lightweight roof panel, wherein the connecting piece includes a first connecting section, a second connecting section, and a third connecting section, wherein the first connecting section, the second connecting section, and the third connecting section enclose a structure that matches the outer edge of half a flange of the H-shaped steel beam, the first connecting section is vertically arranged upward, and the two connecting pieces are arranged opposite to each other on both sides of the top flange of the H-shaped steel beam, a hollow square steel frame is provided between the first connecting sections of the two connecting pieces, and the two first connecting sections and the hollow square steel frame are horizontally penetrated by long high-strength bolts. The three connecting sections are fixedly connected, and the third connecting section is arranged vertically downward, and is fixedly connected to the web of the H-shaped steel beam by short high-strength bolts. The connecting piece and the top of the hollow square steel frame are placed flush below the joint of the steel frame lightweight roof panel. The hollow square steel frame is provided with vertical reserved connecting bolts that extend vertically upward into the steel frame lightweight roof panel. The steel frame lightweight roof panel is composed of an upper protective plate, a waterproof layer, a lower protective plate, and a foam concrete insulation layer from top to bottom. A steel mesh is provided in the foam concrete insulation layer, and a felt waterproof membrane is provided at the joint of two adjacent steel frame lightweight roof panels.

[0011] Furthermore, two hollow square steel frames are provided between the first connecting sections of the two connecting members, and the two hollow square steel frames occupy the entire area between the two first connecting sections.

[0012] The advantages and effects of the present invention are:

[0013] The present invention has a simple structure and is easy to realize standardized and modular production. It is simple to assemble on site and has accurate construction positioning, which greatly saves installation time and improves work efficiency. The connection structure of the connecting piece avoids drilling holes on the flange of the H-shaped steel beam, which leads to weakening of the flange strength of the H-shaped steel beam. At the same time, the slot of the connecting piece is connected with the high-strength bolt and the flange of the H-shaped steel beam, which ensures the close connection between the steel frame lightweight roof panel and the H-shaped steel beam, improves the integrity of the structure, and makes the force more reasonable. The connecting piece can be mass-produced according to different types of H-shaped steel beams to adapt to different situations. The lower iron sheet protection plate of the steel frame lightweight roof panel can serve as a bottom mold during prefabrication, saving the amount of templates. The insulation layer of the roof panel has no interruption and has good insulation effect. No welding is required on site, the assembly is simple, the construction is convenient, and the construction process can be greatly simplified. It can better adapt to the deformation of the main structure and ensure safe and reliable connection, and it can save costs, be easy to construct and realize industrialized production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection structure between the steel frame lightweight roof panel and the H-shaped steel beam;

[0015] Figure 2 It is a schematic diagram of the cross section of an H-shaped steel beam;

[0016] Figure 3 Schematic diagram of the connector structure;

[0017] Figure 4 is a schematic diagram of the cross section of the connector;

[0018] Figure 5 for Figure 4 1-1 cross-sectional view shown in FIG;

[0019] Figure 6 This is a schematic diagram of the steel frame lightweight roof panel structure;

[0020] Figure 7 for Figure 6 Sectional view 2-2 in FIG.

[0021] Figure 8 for Figure 7 A magnified view of part A in FIG;

[0022] Figure 9 This is a schematic diagram of the steel frame lightweight roof panel structure layer;

[0023] Figure 10 The overall assembly structure diagram of the steel frame lightweight roof panel and the H-shaped steel beam connection structure roof panel;

[0024] Figure 11 for Figure 10 Sectional view 3-3 in FIG;

[0025] Figure 12 This is a schematic diagram of the long high-strength bolt and nut structure;

[0026] Figure 13 Schematic diagram of the short high-strength bolt and nut structure.

[0027] Figure: 1. H-shaped steel beam, 2. Connectors, 2-1. First connecting section, 2-2. Second connecting section, 2-3. Third connecting section, 3. Steel-framed lightweight roof panel, 4. Long high-strength bolts, 5. Short high-strength bolts, 6. Nuts, 1-1. First through-hole, 2-1. Second through-hole, 2-2. Third through-hole, 3-1. Fourth through-hole, 3-2. Lower protective plate, 3-3. Foam concrete insulation layer, 3-4. Steel mesh, 3-5. Waterproof layer, 3-6. Upper protective plate, 3-7 , hollow square steel frame, 3-8, vertical reserved connecting bolts, 3-9, roofing felt waterproof membrane, L1, the distance between the first through hole and the lower surface of the H-shaped steel beam and the distance between the third through hole and the upper surface of the H-shaped steel beam, L2, the spacing between the first through hole, the second through hole, the third through hole and the fourth through hole, L3, the vertical distance between the upper and lower rows of the first through hole and the second through hole, L4, the horizontal distance between the second through hole and the third through hole and the edge of the connector, L5, the vertical distance between the second through hole and the third through hole and the edge of the connector. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] according to Figures 1 to 13As shown, a steel frame lightweight roof panel and H-shaped steel beam connection structure includes: H-shaped steel beam 1, connecting piece 2, steel frame lightweight roof panel 3, long high-strength bolts 4, short high-strength bolts 5, and nuts 6; in the factory, a first through hole 1-1 is opened on the H-shaped steel beam 1, and the distance L1 between the first through hole 1-1 and the upper flange of the H-shaped steel beam 1 is 40 mm, a second through hole is opened on the connecting piece 2 at a position corresponding to the first through hole 1-1, and the horizontal distance L4 between the second through hole and the edge of the connecting plate is not less than 19 mm, and the vertical distance L5 between the second through hole and the edge of the connecting plate is not less than 15 mm, and the side frame of the steel frame lightweight roof panel 3 is connected to the connecting piece 2. A fourth through hole 3-1 is provided at the corresponding position of the third through hole on the upper portion of the member 2. The distance L1 between the third through hole and the upper flange of the H-shaped steel beam 1 is 40 mm. The horizontal distance L4 between the third through hole and the edge of the connecting plate is not less than 19 mm. The vertical distance L5 between the third through hole and the edge of the connecting plate 2 is not less than 15 mm. The spacing between the first through hole 1-1, the second through hole, the third through hole, and the fourth through hole 3-1 is not less than 30 mm. The steel frame lightweight roof panel 3 and the hollow square steel frame 3-7 are connected to the force by vertically reserved connecting bolts 3-8 that pass through the hollow square steel frame 3-7 and the lower iron sheet protective plate 3-2 and are cast together with the foam concrete insulation layer 3-3. The foam concrete insulation layer 3-3 of the steel frame lightweight roof panel 3 is provided with a steel mesh 3-4 for better load bearing. Support negative reinforcement 3-4 is provided near the hollow square steel frame 3-7, so that the foam concrete insulation layer 3-3 can have the dual functions of insulation and load bearing. The steel frame lightweight roof panel 3 is divided into five layers: a lower iron sheet protection plate 3-2, a foam concrete insulation layer 3-3, a steel mesh 3-4, a roofing felt waterproofing layer 3-5, and an upper iron sheet protection plate 3-6. During prefabrication of the steel frame lightweight roof panel 3, the bottom formwork can be omitted, and the lower iron sheet protection plate 3-2 can be used as the formwork. At the construction site, the connector 2 with a thickness of not less than 10 mm is clamped on the H At the upper flange of the steel beam 1, a short high-strength bolt 5 passes through the first through hole 1-1 and the second through hole and extends out of the connecting plate. One end is equipped with a nut 6 and is tightened with a wrench to lock the short high-strength bolt 5. The steel frame lightweight roof panel 3 is placed in the slot between the two connectors 2, and the third through hole and the fourth through hole 3-1 are aligned and then a long high-strength bolt 4 is inserted to extend out of the connecting plate. One end is equipped with a nut 6 and is tightened with a wrench to lock the long high-strength bolt 4. The fixed connection between the steel frame lightweight roof panel 3 and the H-shaped steel beam 1 is completed. The joints of the steel frame lightweight roof panel 3 are first filled with emulsified asphalt, and then the roofing felt waterproof membrane 3-9 is pasted across the seam to achieve a waterproof effect.

[0030] The first through holes opened on the H-shaped steel beam are arranged in two upper and lower rows, and each row contains three through holes.

[0031] The distance between the centers of the upper row of through holes of the first through holes opened on the H-shaped steel beam and the lower surface of the upper flange is not less than 40 mm.

[0032] The horizontal spacing between the centers of the first through holes formed on the H-shaped steel beam is 30 mm.

[0033] The vertical spacing between the centers of the first through holes formed on the H-shaped steel beam is 27 mm.

[0034] The second through holes opened at the lower portion of the connecting member are arranged in two upper and lower rows, with each row containing three through holes.

[0035] The distance between the centers of the upper row of through holes of the second through holes opened at the lower part of the connecting piece and the lower surface of the upper flange is 40 mm.

[0036] The horizontal spacing of the second through holes opened at the lower part of the connecting piece is 30 mm.

[0037] The vertical spacing between the centers of the second through holes opened at the lower portion of the connecting member is 27 mm.

[0038] The distance between the center of the outer through hole of the second through hole opened at the lower part of the connecting piece and the edge of the connecting piece is not less than 19 mm.

[0039] The distance between the centers of the lower row of second through holes opened at the lower part of the connecting piece and the bottom edge of the connecting piece is not less than 15 mm.

[0040] The diameters of the first through hole and the second through hole formed in the lower portion of the connecting piece are equal, and are 10-20 mm.

[0041] The upper portion of the connecting piece is provided with third through holes arranged in a single row and including three through holes.

[0042] The third through holes on the upper portion of the connecting member are arranged at the same spacing as the lower row of the second through holes on the lower side.

[0043] The hollow square steel frame of the steel frame lightweight roof panel is provided with fourth through holes at positions corresponding to the third through holes, and the arrangement thereof is corresponding to that of the third through holes.

[0044] The connecting piece is clamped on the flange of the H-shaped steel beam through a clamping groove.

[0045] There are at least nine pairs of high-strength bolts and nuts.

[0046] The steel frame forces the roof panel and the hollow square steel frame to be cast together with the foam concrete insulation layer through reserved vertical bolts prefabricated in the hollow square steel frame, passing through the hollow square steel frame and the lower iron sheet guard plate, so as to have better connection and stress resistance.

[0047] The steel frame lightweight roof panel is composed of five layers, namely a lower iron sheet guard plate, a foam concrete insulation layer, a steel mesh, a roofing felt waterproofing layer, and an upper iron sheet guard plate.

[0048] The lower iron sheet protection plate of the steel frame lightweight roof panel can serve as a template when prefabricating the roof panel.

[0049] The joints of the steel frame lightweight roof panels are filled with emulsified asphalt, and then roofing felt waterproofing membranes are laid across the joints to prevent water leakage at the joints.

[0050] Example 1

[0051] A steel frame lightweight roof panel and H-shaped steel beam connection structure, including an H-shaped steel beam 1, a connecting member 2, and a steel frame lightweight roof panel 3, the connecting member 2 including a first connecting section 2-1, a second connecting section 2-2, and a third connecting section 2-3, the first connecting section 2-1, the second connecting section 2-2, and the third connecting section 2-3 enclosing a structure that matches the outer edge of half a flange of the H-shaped steel beam 1, the first connecting section 2-1 is arranged vertically upward, and the two connecting members 2 are arranged opposite to each other on both sides of the top flange of the H-shaped steel beam 1, and two hollow square steel frames 3-7 are provided between the first connecting sections 2-1 of the two connecting members 2, and the two hollow square steel frames 3-7 occupy the area between the two first connecting sections 2-1. The two first connecting sections 2-1 and the hollow square steel frame 3-7 are fixedly connected by long high-strength bolts 4 that penetrate horizontally. The third connecting section 2-3 is arranged vertically downward and is fixedly connected to the web of the H-shaped steel beam 1 by short high-strength bolts 5. The tops of the connecting parts 2 and the hollow square steel frame 3-7 are placed flush below the joints of the steel frame lightweight roof panels 3. The hollow square steel frame 3-7 is provided with vertical reserved connecting bolts 3-8 that extend vertically upward and deep into the steel frame lightweight roof panels 3. The steel frame lightweight roof panels 3 are, from top to bottom, an upper protective plate 3-6, a waterproof layer 3-5, a lower protective plate 3-2, and a foam concrete insulation layer 3-3. A steel mesh 3-4 is provided in the foam concrete insulation layer 3-3, and a felt waterproof membrane 3-9 is provided at the joints of two adjacent steel frame lightweight roof panels 3.

[0052] The first through holes 1-1 opened on the H-shaped steel beam 1 are arranged in two rows, each row containing three through holes. The center of the upper row of the first through holes 1-1 opened on the H-shaped steel beam 1 is not less than 40 mm from the lower surface of the upper flange. The horizontal spacing between the centers of the first through holes 1-1 opened on the H-shaped steel beam 1 is 30 mm, and the vertical spacing between the centers of the first through holes 1-1 opened on the H-shaped steel beam 1 is 27 mm.

[0053] The second through holes opened at the lower part of the connector 2 are arranged in two rows, each row containing three through holes. The center of the upper row of the second through holes opened at the lower part of the connector 2 is not less than 40 mm from the lower surface of the upper flange. The horizontal spacing of the second through holes opened at the lower part of the connector 2 is 30 mm. The vertical spacing of the centers of the second through holes opened at the lower part of the connector 2 is 27 mm. The horizontal spacing of the centers of the outer through holes of the second through holes opened at the lower part of the connector 2 is not less than 19 mm from the edge of the connector 2. The center of the lower row of the second through holes opened at the lower part of the connector 2 is not less than 40 mm from the lower surface of the upper flange. The bottom edge spacing is not less than 15mm. The diameter of the second through hole opened at the lower part of the connector 2 is equal to that of the first through hole, which is 10-20mm in diameter. The third through hole opened at the upper part of the connector 2 is arranged in a single row and contains three through holes. The horizontal spacing of the third through hole opened at the upper part of the connector 2 is 30mm. The horizontal spacing of the outer through hole center of the third through hole from the edge of the connector 2 is not less than 19mm. The spacing of the hole center of the third through hole from the top edge of the connector 2 is not less than 15mm. The connector 2 itself forms a slot, and the connector 1 is clamped on the flange of the H-shaped steel beam 1 through the slot.

[0054] There are at least three pairs of long high-strength bolts 4 and nuts 6, and at least six pairs of short high-strength bolts 5 and nuts 6.

[0055] The hollow square steel frame 3-7 of the steel frame lightweight roof panel 3 is provided with a fourth through hole 3-1 at a position corresponding to the third through hole. The horizontal spacing of the fourth through holes 3-1 is 30 mm, and the opening position and arrangement method correspond to the position of the third through hole. The steel frame lightweight roof panel 3 and the hollow square steel frame 3-7 are cast together with the foam concrete insulation layer 3-3 by vertically reserved connecting bolts 3-8 passing through the hollow square steel frame 3-7 and the lower iron sheet protection plate 3-2, so that the hollow square steel frame 3-7 and the roof panel 3 are tightly connected and bear the force together. During prefabrication, the lower iron sheet protection plate 3-2 of the steel frame lightweight roof panel 3 can serve as a bottom mold. To save on formwork, a steel mesh 3-4 is placed within the foam concrete insulation layer 3-3 of the steel-frame lightweight roof panel 3 to facilitate better load-bearing. Support negative reinforcement 3-4 is provided near the hollow square steel frame 3-7, allowing the foam concrete insulation layer 3-3 to have both insulation and load-bearing functions. The steel-frame lightweight roof panel 3 is divided into five layers: a lower iron sheet protection plate 3-2, a foam concrete insulation layer 3-3, a steel mesh 3-4, a felt waterproofing layer 3-5, and an upper iron sheet protection plate 3-6. The joints of the steel-frame lightweight roof panel 3 are first caulked with emulsified asphalt, and then the felt waterproofing membrane 3-9 is affixed across the seams to achieve a waterproof effect.

[0056] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present invention may still be modified or replaced by equivalents, and any modifications or equivalent replacements that depart from the spirit and scope of the present invention should be included in the present invention.

Claims

1. A steel frame lightweight roof panel and H-shaped steel beam connection structure, characterized by: The invention comprises an H-shaped steel beam (1), a connecting member (2), and a steel frame lightweight roof panel (3), wherein the connecting member (2) comprises a first connecting section (2-1), a second connecting section (2-2), and a third connecting section (2-3), wherein the first connecting section (2-1), the second connecting section (2-2), and the third connecting section (2-3) enclose a structure matching the outer edge of half a flange of the H-shaped steel beam (1), the second connecting section (2-2) is arranged vertically upward, and the two connecting members (2) are arranged opposite to each other on both sides of the top flange of the H-shaped steel beam (1), a hollow square steel frame (3-7) is provided between the second connecting sections (2-2) of the two connecting members (2), and the two second connecting sections (2-2) and the hollow square steel frame (3-7) are fixedly connected by long high-strength bolts (4) passing through the horizontal direction. A connecting section (2-1) is vertically downwardly arranged and fixedly connected to the web of the H-shaped steel beam (1) via short high-strength bolts (5); the connecting piece (2) and the top of the hollow square steel frame (3-7) are flushly placed below the joint of the steel frame lightweight roof panel (3); the hollow square steel frame (3-7) is provided with vertical reserved connecting bolts (3-8) that extend vertically upward and penetrate into the steel frame lightweight roof panel (3); the steel frame lightweight roof panel (3) is composed of an upper protective plate (3-6), a waterproof layer (3-5), a foam concrete insulation layer (3-3), and a lower protective plate (3-2) from top to bottom; a steel mesh (3-4) is provided in the foam concrete insulation layer (3-3); and a felt waterproof membrane (3-9) is provided at the joint of two adjacent steel frame lightweight roof panels (3); The H-shaped steel beam (1) is provided with first through holes arranged in two upper and lower rows, with each row containing three through holes; The lower part of the connecting member (2) is provided with second through holes arranged in two rows, each row containing three through holes; The second through hole formed in the lower portion of the connecting member (2) has the same diameter as the first through hole, and the diameter is 10-20 mm; The upper portion of the connecting member (2) is provided with third through holes arranged in a single row and including three through holes; The third through holes formed on the upper portion of the connecting member (2) are arranged at the same spacing as the lower row of the second through holes on the lower side; The hollow square steel frame of the steel frame lightweight roof panel is provided with fourth through holes at positions corresponding to the third through holes, and the arrangement thereof is corresponding to that of the third through holes; The connecting piece (2) is clamped on the upper flange of the H-shaped steel beam (1), and a short high-strength bolt (5) is passed through the first through hole (1-1) and the second through hole and extended to one end of the connecting plate and equipped with a nut (6), and is tightened by a wrench to lock the short high-strength bolt (5), and the steel frame lightweight roof panel (3) is placed in the clamping groove between the two connecting pieces (2), and the third through hole and the fourth through hole (3-1) are aligned and then a long high-strength bolt (4) is passed through and extended to one end of the connecting plate and equipped with a nut (6), and is tightened by a wrench to lock the long high-strength bolt (4), thereby completing the fixed connection between the steel frame lightweight roof panel (3) and the H-shaped steel beam (1), and the joints of the steel frame lightweight roof panel (3) are first filled with emulsified asphalt, and then the roofing felt waterproof membrane (3-9) is pasted across the seam; The lower protective plate (3-2) of the steel frame lightweight roof panel (3) can serve as a template when prefabricating the roof panel; The joints of the steel frame lightweight roof panels (3) are filled with emulsified asphalt, and then roofing felt waterproofing coils are laid across the joints to prevent water leakage at the joints.

2. The steel frame lightweight roof panel and H-shaped steel beam connection structure according to claim 1, characterized in that: Two hollow square steel frames (3-7) are provided between the second connecting sections (2-2) of the two connecting members (2), and the two hollow square steel frames (3-7) fully occupy the area between the two second connecting sections (2-2).

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