Fabricated assembly of roof overhang structure

Abstract

The utility model discloses an assembly component of roof overhanging structure relates to roof overhanging construction technical field, wherein, the assembly component of roof overhanging structure includes overhanging steel roof beam and truss superimposed board, and overhanging steel roof beam is I -beam, and overhanging steel roof beam has upper flange and lower flange, and upper flange and lower flange are used for embedding in roof main body structure, the top of truss superimposed board is equipped with angle steel, and the first board section of angle steel is connected with the top surface of truss superimposed board, and the second board section of angle steel, first board section and truss superimposed board enclose into the clamping groove, and the clamping groove is used for with the side portion of lower flange and is connected with each other, the utility model discloses a truss superimposed board is equipped with angle steel, and let angle steel and truss superimposed board enclose into the clamping groove, thereby utilize the clamping groove and the side portion of lower flange of overhanging steel roof beam and are connected with each other, need not adopt high formwork scheme, thereby solved the influence project progress and construction cost high problem that adopts high formwork scheme brings.

Description

Technical Field

[0001] This utility model relates to the field of roof cantilever construction technology, and in particular to an assembly component for a roof cantilever structure. Background Technology

[0002] With the continuous evolution of modern architectural design concepts, cantilevered roof structures have been widely used in commercial complexes, cultural venues, and high-end residences due to their visual impact and spatial extension. Early cantilevered structures mostly adopted exposed beams or truss supports, which had a clear structural logic but limited architectural expression. In recent years, in pursuit of simplicity and a "beam-free" visual effect, architectural designs generally require the bottom of the slab in the cantilever area to be flush with the bottom of the beam, and the beam to be hidden inside the structure, thereby achieving a pure spatial experience where the beams are not visible when looking up at the building.

[0003] Currently, for structures with large cantilevered roofs on all four sides, requiring the bottom of the slab to be flush with the bottom of the beams, the construction industry commonly uses high-support formwork. Specifically, this involves erecting full-span scaffolding or heavy-duty support frames under the cantilevered area, forming a temporary load-bearing system through dense vertical and horizontal poles and scissor bracing to support the self-weight of the cantilevered concrete during pouring and the construction loads. This system can only be removed after the concrete has reached its design strength. This method is technically mature, widely applicable, and is currently the mainstream solution in the industry for constructing large cantilevered structures.

[0004] However, high-formwork construction has significant drawbacks: First, high-formwork construction is a high-risk project, requiring specialized design and planning. Furthermore, when it exceeds a certain scale, it necessitates expert review and other approval processes. Therefore, high-formwork design is complex and subject to review, and its adoption can impact the overall project schedule. Second, the high-formwork support system is tall, requires large quantities of materials, and has a long erection and dismantling period, directly leading to a substantial increase in construction costs. Utility Model Content

[0005] The main purpose of this utility model is to propose an assembly component for a cantilever roof structure, which aims to solve the problem that the current construction of cantilever roof structures generally adopts a high formwork scheme, which leads to the impact on project progress and high construction costs.

[0006] To achieve the above objectives, the assembly components of the roof cantilever structure proposed in this utility model include a cantilever steel beam and a truss composite slab. The cantilever steel beam is an I-beam with an upper flange and a lower flange, which are embedded in the main roof structure. An angle steel is provided at the top of the truss composite slab. The first plate segment of the angle steel is connected to the top surface of the truss composite slab. The second plate segment and the first plate segment of the angle steel, together with the truss composite slab, form a groove for engaging with the side of the lower flange.

[0007] In one embodiment, the first plate segment of the angle steel is perpendicular to the top surface of the truss composite plate, and there is a groove wall spacing between the upper and lower groove walls of the slot, the groove wall spacing being greater than or equal to the thickness of the lower flange.

[0008] In one embodiment, the groove wall spacing is equal to the thickness of the lower flange.

[0009] In one embodiment, the cantilever steel beam also has a web, with the upper flange connected to the lower flange via the web, and the web is used to be embedded in the main roof structure; the first distance from the left side of the lower flange to the web is the same as the second distance from the right side of the lower flange to the web, and the groove depth of the slot is the same as the first distance.

[0010] In one embodiment, the assembly of the roof cantilever structure includes a plurality of truss composite plates, wherein a portion of the truss composite plates are located on the left side of the cantilever steel beam, and a slot of a portion of the truss composite plates is used to engage with the left side of the lower flange; another portion of the truss composite plates are located on the right side of the cantilever steel beam, and a slot of another portion of the truss composite plates is used to engage with the right side of the lower flange.

[0011] In one embodiment, the right side of one portion of the truss composite plate is used to abut against the left side of another portion of the truss composite plate.

[0012] In one embodiment, a through hole is provided on the second plate segment of the angle steel, and an opening is provided at the top of the lower flange; the assembly components of the roof cantilever structure also include fasteners that pass through the through hole and are connected to the opening.

[0013] In one embodiment, the fastener is configured as a threaded fastener, the opening is configured as a screw hole, and the threaded fastener passes through the through hole and is threadedly connected to the screw hole.

[0014] In one embodiment, the thickness of the lower flange is greater than the thickness of the upper flange, and the width of the lower flange is less than the width of the upper flange.

[0015] In one embodiment, a steel truss is further provided on the top of the truss composite plate, and the steel truss is welded to the first plate segment of the angle steel.

[0016] This utility model's technical solution effectively avoids the schedule constraints and high costs associated with traditional high-formwork construction by employing a structural form combining cantilevered steel beams and truss composite slabs. Specifically, the cantilevered steel beam, as the main load-bearing component of the entire cantilever structure, has its upper and lower flanges pre-embedded within the main roof structure, achieving a rigid connection and effective load transfer with the main roof structure, ensuring sufficient load-bearing capacity at the cantilever end before concrete pouring. The truss composite slab, as a prefabricated component, has angle steel at its top connected to the top surface of the truss composite slab via a first plate segment. A second plate segment, together with the first plate segment and the truss composite slab, forms a slot. This slot allows for precise engagement with the side of the lower flange of the cantilevered steel beam, enabling the truss composite slab to be quickly and stably mounted on the cantilevered steel beam without the need for high formwork, forming a prefabricated load-bearing system where the cantilevered steel beam bears the load and the truss composite slab is self-mounted. The assembly components of this utility model not only eliminate the cumbersome processes of erecting dense support frames, preparing specialized plans, and conducting expert reviews required for high formwork, significantly shortening the construction cycle and accelerating the overall project progress, but also significantly reduce the input of reusable materials such as steel pipes and fasteners, as well as the cost of manual assembly and disassembly, effectively lowering construction costs. Furthermore, the mechanical snap-fit ​​structure between the slot and the lower flange offers convenient installation, further accelerating the construction process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of an embodiment of the assembly components for the roof cantilever structure provided by this utility model.

[0019] Explanation of icon numbers:

[0020] 1. Cantilever steel beam; 11. Upper flange; 12. Lower flange; 13. Web;

[0021] 2. Truss composite slab; 21. Steel truss;

[0022] 3. Angle steel;

[0023] 4. Card slot.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] With the continuous evolution of modern architectural design concepts, cantilevered roof structures have been widely used in commercial complexes, cultural venues, and high-end residences due to their visual impact and spatial extension. Early cantilevered structures mostly adopted exposed beams or truss supports, which had a clear structural logic but limited architectural expression. In recent years, in pursuit of simplicity and a "beam-free" visual effect, architectural designs generally require the bottom of the slab in the cantilever area to be flush with the bottom of the beam, and the beam to be hidden inside the structure, thereby achieving a pure spatial experience where the beams are not visible when looking up at the building.

[0029] Currently, for structures with large cantilevered roofs on all four sides, requiring the bottom of the slab to be flush with the bottom of the beams, the construction industry commonly uses high-support formwork. Specifically, this involves erecting full-span scaffolding or heavy-duty support frames under the cantilevered area, forming a temporary load-bearing system through dense vertical and horizontal poles and scissor bracing to support the self-weight of the cantilevered concrete during pouring and the construction loads. This system can only be removed after the concrete has reached its design strength. This method is technically mature, widely applicable, and is currently the mainstream solution in the industry for constructing large cantilevered structures.

[0030] However, high-formwork construction has significant drawbacks: First, high-formwork construction is a high-risk project, requiring specialized design and planning. Furthermore, when it exceeds a certain scale, it necessitates expert review and other approval processes. Therefore, high-formwork design is complex and subject to review, and its adoption can impact the overall project schedule. Second, the high-formwork support system is tall, requires large quantities of materials, and has a long erection and dismantling period, directly leading to a substantial increase in construction costs.

[0031] To address the aforementioned problems, this utility model proposes an assembly component for a roof cantilever structure.

[0032] Please see Figure 1 In one embodiment of this utility model, the assembly components of the roof cantilever structure include a cantilever steel beam 1 and a truss composite plate 2. The cantilever steel beam 1 is an I-beam with an upper flange 11 and a lower flange 12, which are embedded in the main roof structure. An angle steel 3 is provided at the top of the truss composite plate 2. The first plate segment of the angle steel 3 is connected to the top surface of the truss composite plate 2. The second plate segment and the first plate segment of the angle steel 3 and the truss composite plate 2 form a slot 4, which is used to engage with the side of the lower flange 12.

[0033] The technical solution of this utility model effectively avoids the problems of schedule constraints and high costs caused by traditional high-formwork construction by adopting a structural form combining cantilever steel beam 1 and truss composite slab 2. Specifically, the cantilever steel beam 1, as the main load-bearing component of the entire cantilever structure, has its upper flange 11 and lower flange 12 pre-embedded in the main roof structure, achieving rigid connection and effective load transfer with the main roof structure, ensuring that the cantilever end has sufficient load-bearing capacity before concrete pouring. The truss composite slab 2, as a prefabricated component, has angle steel 3 at its top connected to the top surface of the truss composite slab 2 through a first plate segment. The second plate segment, together with the first plate segment and the truss composite slab 2, forms a slot 4. This slot 4 can achieve precise engagement with the side of the lower flange 12 of the cantilever steel beam 1, thereby enabling the truss composite slab 2 to be quickly and stably hung on the cantilever steel beam 1 without the need for high formwork, forming an assembled force-bearing system in which the cantilever steel beam 1 bears the load and the truss composite slab 2 hangs itself. The assembly components of this utility model not only eliminate the cumbersome processes of erecting dense support frames, preparing special plans, and conducting expert reviews required for high formwork, significantly shortening the construction cycle and accelerating the overall project progress, but also significantly reduce the input of reusable materials such as steel pipes and fasteners, as well as the cost of manual assembly and disassembly, effectively lowering construction costs. Furthermore, the mechanical snap-fit ​​structure between the slot 4 and the lower flange 12 is easy to install, further accelerating the construction speed.

[0034] It can be understood that the cantilever steel beam 1 is an I-beam, which has an upper flange 11, a web, and a lower flange 12. The upper flange 11 is connected to the lower flange 12 through the web to form an I-shaped structure. The web is also used for pre-embedding in the main roof structure. The truss composite slab 2 is an assembled floor slab composed of a precast concrete base slab with steel trusses and a cast-in-place layer.

[0035] Angle steel 3 is a steel structure with a first plate segment and a second plate segment, wherein the first plate segment and the second plate segment are connected and perpendicular to each other. In this embodiment, angle steel 3 can be an equilateral angle steel 3 or an unequal angle steel 3, and no limitation is made here.

[0036] Please see Figure 1 In an embodiment of this utility model, the first plate segment of the angle steel 3 is perpendicular to the top surface of the truss composite plate 2, and there is a groove wall spacing between the upper groove wall and the lower groove wall of the slot 4, which is greater than or equal to the thickness of the lower flange 12.

[0037] In this embodiment, the first plate segment of the angle steel 3 is set perpendicular to the top surface of the truss composite plate 2. When the side of the lower flange 12 is engaged with the slot 4, the first plate segment can provide lateral blocking and limiting effect for the side of the lower flange 12. At the same time, by ensuring that the distance between the upper and lower slot walls of the slot 4 is greater than or equal to the thickness of the lower flange 12, it is ensured that the lower flange 12 can be smoothly inserted into the slot 4 to achieve reliable engagement, avoiding assembly interference caused by manufacturing or installation errors. Furthermore, it allows for a suitable gap while meeting the structural force transmission requirements, reducing the requirements for component processing accuracy and on-site installation tolerance, and improving assembly tolerance and construction adaptability. Overall, this structural design ensures connection stability while also taking into account construction convenience and economy.

[0038] Please refer to Figure 1 As an optional implementation, the groove wall spacing is equal to the thickness of the lower flange 12.

[0039] In this embodiment, by setting the distance between the upper and lower groove walls of the slot 4 to be equal to the thickness of the lower flange 12 of the cantilever steel beam 1, the lower flange 12 can form a tight fit with the upper and lower groove walls after being inserted into the slot 4. This achieves gapless constraint in the vertical direction, effectively limiting the vertical movement of the truss composite plate 2 relative to the cantilever steel beam 1, improving the overall rigidity of the connection node, and ensuring the connection stability between the slot 4 and the lower flange 12. Simultaneously, this solution, while ensuring assembly accuracy, avoids construction swaying or force eccentricity problems caused by excessive gaps, enhancing the stability and safety of the truss composite plate 2 structure during concrete pouring and subsequent use.

[0040] Please see Figure 1In an embodiment of this utility model, the cantilever steel beam 1 also has a web 13, the upper flange 11 is connected to the lower flange 12 through the web 13, and the web 13 is used to be embedded in the main structure of the roof; the first distance from the left side of the lower flange 12 to the web 13 is the same as the second distance from the right side of the lower flange 12 to the web 13, and the groove depth of the slot 4 is the same as the first distance.

[0041] It is understandable that the first distance from the left side of the lower flange 12 to the web 13 refers to the shortest distance from the side of the left side of the lower flange 12 to the side of the web 13. Similarly, the second distance from the right side of the lower flange 12 to the web 13 refers to the shortest distance from the side of the right side of the lower flange 12 to the side of the web 13. Furthermore, the groove depth of the slot 4 refers to the distance from the left side wall of the first plate segment to the left side wall of the second plate segment, that is, the distance from the left side of the first plate segment to the left side wall of the second plate segment.

[0042] In this embodiment, the first distance between the left side of the lower flange 12 and the web 13 and the second distance between the right side of the lower flange 12 and the web 13 are kept consistent, so that the lower flange 12 forms a symmetrical structure on both sides of the web 13, which is conducive to the uniform transfer of load and improves the overall stress stability of the steel beam. At the same time, the groove depth of the slot 4 is designed to be equal to the first distance, ensuring that when the slot 4 is engaged with the side of the lower flange 12, its embedding depth exactly matches the structural dimensions of the lower flange 12 from the edge of the web 13 to the side end, thereby achieving precise positioning in the lateral direction and preventing lateral displacement or torsion of the truss composite plate 2 during construction or use, enhancing the lateral displacement resistance and overall synergy of the connection node. In addition, this size matching design maximizes the contact surface between the slot 4 and the lower flange 12, thereby optimizing the local stress distribution between the slot 4 and the lower flange 12, reducing the risk of stress concentration, and further ensuring the structural safety of the connection node during the concrete pouring stage. Overall, the structure improves the accuracy, stability, and stress reliability of assembly connections through symmetrical size matching and depth adaptation, providing strong support for realizing cantilevered roof structures that can be installed quickly and safely without high formwork.

[0043] Please see Figure 1 In an embodiment of this utility model, the assembly component of the roof cantilever structure includes multiple truss composite plates 2, wherein a portion of the truss composite plates 2 is located on the left side of the cantilever steel beam 1, and the slots 4 of a portion of the truss composite plates 2 are used to engage with the left side of the lower flange 12; another portion of the truss composite plates 2 is located on the right side of the cantilever steel beam 1, and the slots 4 of the other portion of the truss composite plates 2 are used to engage with the right side of the lower flange 12.

[0044] In this embodiment, multiple truss composite plates 2 are arranged on the left and right sides of the cantilever steel beam 1, respectively. The slot 4 of the truss composite plate 2 on the left side engages with the left side of the lower flange 12, and the slot 4 of the truss composite plate 2 on the right side engages with the right side of the lower flange 12. This forms a symmetrical load-bearing structure on both sides of the cantilever steel beam 1, so that the load is symmetrically distributed along the centerline of the web 13 of the cantilever steel beam 1, effectively balancing the bending moment and shear force on the cantilever end, and improving the overall structural stress rationality and stability. At the same time, the double-sided engagement structure allows the truss composite plates 2 and the cantilever steel beam 1 to engage to form an integral roof cantilever structure. By setting multiple cantilever steel beams 1 at intervals and using multiple truss composite plates 2 to engage with the left and right sides of the lower flange 12 of different cantilever steel beams 1, a large cantilever structure covering the entire roof is formed, achieving the effect of constructing a large cantilever structure without high formwork.

[0045] Furthermore, the double-sided snap-fit ​​structure significantly enhances the connection stiffness and torsional resistance between the truss composite slab 2 and the cantilever steel beam 1, preventing unilateral eccentric loading, tilting, or slippage under concrete pouring or external loads, thus ensuring the safety and quality of the construction process. In addition, this symmetrical arrangement fully utilizes the space on both sides of the lower flange 12 of the cantilever steel beam 1, enabling simultaneous assembly of the bidirectional cantilever areas, reducing the types of components and installation procedures, and improving on-site construction efficiency and industrial adaptability.

[0046] Please see Figure 1 In one embodiment of the present invention, the right side of one part of the truss composite plate 2 is used to abut against the left side of another part of the truss composite plate 2.

[0047] In this embodiment, by having the right side of the truss composite slab 2 located on the left side of the cantilever steel beam 1 abut against the left side of the truss composite slab 2 located on the right side of the cantilever steel beam 1, a lateral self-locking and continuous force transmission system is formed structurally, effectively preventing grout leakage during concrete pouring and ensuring the flatness of the slab bottom. Furthermore, from an architectural perspective, this ensures tight joints between adjacent composite slabs and no misalignment at the slab bottom. This abutment structure creates a complete, continuous, and height-neutral slab bottom surface above the cantilever steel beam 1 for the two truss composite slabs 2, providing a shielding effect for the cantilever steel beam 1 structure. This achieves a clean spatial effect where the beam is not visible from a downward viewing angle, enhancing the aesthetics of the cantilever structure. Simultaneously, this structure serves a lateral positioning and limiting function during construction, improving assembly accuracy, reducing on-site adjustments, and accelerating installation efficiency.

[0048] In an embodiment of this utility model, a through hole (not shown in the figure) is provided on the second plate segment of the angle steel 3, and an opening (not shown in the figure) is provided on the top of the lower flange 12; the assembly components of the roof cantilever structure also include fasteners (not shown in the figure), which pass through the through hole and are connected to the opening.

[0049] In this embodiment, by creating through holes in the second segment of the angle steel 3 and corresponding openings at the top of the lower flange 12 of the cantilever beam 1, and then using fasteners passing through the through holes and openings to achieve a mechanical connection, a dual constraint mechanism is further formed between the truss composite slab 2 and the cantilever beam 1, building upon the existing clamping connection in the slot 4. This mechanism effectively prevents the truss composite slab 2 from floating, demounting, or sliding laterally under concrete pouring or external vibration loads, significantly improving the safety redundancy and construction reliability of the connection node. Furthermore, the fasteners are located on the second segment of the angle steel 3 and the truss composite slab 2, and are not exposed on the bottom surface of the truss composite slab 2, thus avoiding affecting the aesthetics of the cantilever structure and the visual experience when viewed from below. Overall, this structure, without compromising the architectural appearance, strengthens the mechanical performance of the connection node between the slot 4 and the lower flange 12 through mechanical fastening.

[0050] In one optional implementation, the fastener is configured as a threaded fastener (not shown in the figure), the opening is configured as a screw hole, and the threaded fastener passes through the through hole and is threadedly connected to the screw hole.

[0051] In this embodiment, by setting the fastener as a threaded fastener and setting the opening at the top of the lower flange 12 as a matching threaded hole, the threaded fastener can form a reliable threaded connection with the threaded hole after passing through the through hole of the second plate segment of the angle steel 3. Compared with ordinary pins or riveting methods, this threaded connection structure has higher tensile strength and shear strength, and can more effectively resist the buoyancy force generated during concrete pouring and the lateral slippage tendency caused by construction vibration, further strengthening the connection stiffness and stability between the truss composite plate 2 and the cantilever steel beam 1. At the same time, the threaded connection has the characteristics of adjustable preload, easy on-site installation and subsequent retightening or disassembly, which not only improves the fault tolerance and operational flexibility during construction, but also enhances the maintainability of the joint in long-term use.

[0052] As an optional implementation, the threaded fastener can be a bolt.

[0053] Please see Figure 1 In an embodiment of this utility model, the thickness of the lower flange 12 is greater than the thickness of the upper flange 11, and the width of the lower flange 12 is less than the width of the upper flange 11.

[0054] In this embodiment, by setting the thickness of the lower flange 12 of the cantilever steel beam 1 to be greater than that of the upper flange 11, the lower flange 12 has stronger local bearing capacity and bending stiffness when bearing the load of the truss composite slab 2 and the self-weight of the concrete, effectively resisting the concentrated stress in the connection area of ​​the slot 4. At the same time, setting the width of the lower flange 12 to be less than that of the upper flange 11, since the lower flange 12 is shorter, can reduce the amount of steel used, reduce the self-weight of the component and the material cost, and even if a slot 4 with a smaller groove depth is used, the side of the lower flange 12 can be wrapped and covered, avoiding the side of the flange from being exposed and damaging the flatness of the bottom of the slab, thereby better meeting the architectural visual requirement of "the bottom of the slab is flush with the bottom of the beam, and the beam is not visible when looking up".

[0055] Please see Figure 1 In an embodiment of this utility model, a steel truss 21 is also provided on the top of the truss composite plate 2, and the steel truss 21 is welded to the first plate segment of the angle steel 3.

[0056] In this embodiment, a steel truss 21 is installed on the top of the truss composite slab 2, and the steel truss 21 is welded and fixed to the first section of the angle steel 3. This allows the angle steel 3 and the steel truss 21 to provide mutual anchoring, ensuring the reliability of the connection between the angle steel 3, the steel bars, and the truss composite slab 2. This significantly improves the overall rigidity and deformation resistance of the truss composite slab 2 during hoisting, hanging, and concrete pouring. Simultaneously, the welded connection ensures direct and reliable force transmission between the angle steel 3 and the steel truss 21, preventing loosening or displacement of the angle steel 3 due to vibration or load eccentricity, further ensuring the stability of the connection node between the slot 4 and the lower flange 12. Furthermore, the angle steel 3 and the steel truss 21 can be integrally welded during the factory prefabrication stage, reducing connection procedures on the construction site and improving assembly efficiency and quality control. The welded node is hidden within the concrete protective layer at the top of the truss composite slab 2, not affecting the flatness of the bottom surface, meeting the architectural visual requirement of "the bottom of the slab is flush with the bottom of the beam, and the beam is not visible when looking up." Overall, this welded structure enhances structural performance and construction reliability while also meeting the needs of industrial prefabrication and architectural aesthetics.

[0057] Please see Figure 1 In conjunction with any of the above embodiments, this embodiment provides an example of the construction process for assemblies of this cantilevered roof structure:

[0058] 1. The lower flange 12 of the cantilever steel beam 1 should be made as thick and narrow as possible so that the subsequent slot 4 can cover the side of the lower flange 12;

[0059] 2. The upper flange 11 of the cantilever steel beam 1 is pre-embedded in the main structure of the roof; the cantilever steel beam 1 serves as the main beam of the cantilever structure of the roof;

[0060] 3. A precast truss composite slab 2, with an angle steel 3 installed on the top of the truss composite slab 2 so that the angle steel 3 and the truss composite slab 2 form a slot 4; the angle steel 3 is welded and fixed to the steel truss 21;

[0061] 4. Hoist the truss composite plate 2, align the slot 4 of the truss composite plate 2 with the position of the lower flange 12 of the cantilever steel beam 1, and push the truss composite plate 2 into the steel beam so that the slot 4 and the lower flange 12 are engaged.

[0062] 5. Use bolts or other threaded fasteners to pass through the through holes on the angle steel 3, and connect the bolts to the threaded holes of the lower flange 12;

[0063] 6. Cast the upper slab of truss composite slab 2;

[0064] 7. Enclose the cantilever steel beam 1 with concrete to prevent corrosion and reduce later maintenance.

[0065] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An assembly component for a cantilevered roof structure, characterized in that, include: The cantilevered steel beam is an I-beam with an upper flange and a lower flange, which are used to be embedded in the main structure of the roof. A truss composite plate, wherein an angle steel is provided at the top of the truss composite plate, the first plate segment of the angle steel is connected to the top surface of the truss composite plate, and the second plate segment and the first plate segment of the angle steel together with the truss composite plate form a slot, the slot being used to engage with the side of the lower flange.

2. The assembly components for the cantilevered roof structure as described in claim 1, characterized in that, The first plate segment of the angle steel is perpendicular to the top surface of the truss composite plate, and there is a groove wall spacing between the upper and lower groove walls of the slot, the groove wall spacing being greater than or equal to the thickness of the lower flange.

3. The assembly components for the cantilevered roof structure as described in claim 2, characterized in that, The spacing between the groove walls is equal to the thickness of the lower flange.

4. The assembly components for the cantilevered roof structure as described in claim 1, characterized in that, The cantilevered steel beam also has a web, the upper flange is connected to the lower flange through the web, and the web is used to be embedded in the main structure of the roof; the first distance from the left side of the lower flange to the web is the same as the second distance from the right side of the lower flange to the web, and the groove depth of the slot is the same as the first distance.

5. The assembly components for the cantilevered roof structure as described in claim 4, characterized in that, The assembly components of the roof cantilever structure include multiple truss composite plates, a portion of which are located on the left side of the cantilever steel beam, and the slots of a portion of the truss composite plates are used to engage with the left side of the lower flange; another portion of the truss composite plates are located on the right side of the cantilever steel beam, and the slots of the other portion of the truss composite plates are used to engage with the right side of the lower flange.

6. The assembly component for the cantilevered roof structure as described in claim 5, characterized in that, The right side of one portion of the truss composite plate is used to abut against the left side of the other portion of the truss composite plate.

7. The assembly components for the cantilevered roof structure as described in claim 1, characterized in that, A through hole is provided on the second plate segment of the angle steel, and an opening is provided at the top of the lower flange; The assembly components of the roof cantilever structure also include fasteners that pass through the through hole and are connected to the opening.

8. The assembly components for the cantilevered roof structure as described in claim 7, characterized in that, The fastener is configured as a threaded fastener, the opening is configured as a screw hole, and the threaded fastener passes through the through hole and is threadedly connected to the screw hole.

9. The assembly components for the cantilevered roof structure as described in claim 1, characterized in that, The thickness of the lower flange is greater than the thickness of the upper flange, and the width of the lower flange is less than the width of the upper flange.

10. The assembly component for a roof cantilever structure as described in any one of claims 1 to 9, characterized in that, The top of the truss composite plate is also provided with a steel truss, which is welded to the first plate segment of the angle steel.

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