A V-shaped support structure for overhanging roof of light steel building

Abstract

The utility model discloses a kind of cantilever roof V-shaped support structures suitable for light steel building, to improve the rigidity and stability of cantilever roof. The structure includes multiple V-shaped support units arranged in linear array along roof ridge. Each unit is composed of first support rod and second support rod, and the two ends of the rod are connected with the first connecting plate on the wall surface and the second connecting plate under the roof ridge through universal hinge seat respectively. The innovation point is that: the two rods of the same unit share a first connecting plate at the wall surface end;And adjacent unit is connected at the roof ridge end by sharing a second connecting plate, so as to integrate multiple independent units into a whole support system working cooperatively. The utility model is designed by unique "chain type" interconnection, which effectively enhances the structural integrity, load transfer efficiency and anti-deformation ability, and the length of the rod is adjustable, with strong adaptability and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of light steel building technology, and in particular to a V-shaped support structure for cantilevered roofs of light steel buildings. Background Technology

[0002] Light steel buildings refer to building systems with cold-formed thin-walled steel components as the main structure. They have advantages such as light weight, high strength, good earthquake and wind resistance, convenient construction, and energy saving and environmental protection, and are widely used in various modern buildings.

[0003] In light steel frame construction, cantilevered roofs are a common structural form, currently employing I-beams or steel trusses as their primary supporting components. However, when faced with large cantilever spans, strong wind loads, or significant snow loads, these traditional support structures often exhibit insufficient stiffness and poor lateral stability, easily leading to excessive deformation and consequently affecting the overall structural safety and normal functionality. Therefore, it is necessary to optimize existing cantilevered roof support structures in light steel frame buildings to improve their resistance to lateral forces and deformation. Utility Model Content

[0004] The purpose of this invention is to provide a V-shaped support structure for cantilevered roofs of light steel buildings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A V-shaped support structure for cantilevered roofs of light steel buildings includes multiple V-shaped support units, which are arranged in a linear array and fixedly supported between the cantilevered eaves and the wall. Each of the V-shaped support units includes a first support rod and a second support rod, the first support rod and the second support rod are arranged in a V-shape, and both ends are provided with universal hinge seats; The first and second support rods are connected to the first connecting plate via a universal hinge seat at their ends near the wall. The first connecting plate is fixedly connected to the wall. The first and second support rods are connected to the second connecting plate at the ends near the cantilevered eaves via universal hinge seats, and the second connecting plate is fixedly connected to the cantilevered eaves. For the first and second support rods in the same V-shaped support unit, they share the same first connecting plate at the end near the wall via a universal hinge seat. For two adjacent V-shaped support units, the first support rod of one side and the second support rod of the other side share the same second connecting plate through a universal hinge seat at the end near the cantilevered eaves, thereby realizing the splicing of adjacent V-shaped support units.

[0006] This unique connection method enables the V-shaped support units to be connected end to end at the eaves and ensures the continuity of force transmission, integrating multiple originally independent support units into a cohesive overall support system.

[0007] Preferably, the universal joint seat includes a square cross shaft and two U-shaped universal joint forks sleeved on the square cross shaft; one of the U-shaped universal joint forks is connected to the first support rod or the second support rod, and the other U-shaped universal joint fork is connected to the first connecting plate or the second connecting plate.

[0008] Preferably, the square cross shaft includes a square base and a connecting shaft with a cross-shaped structure disposed at the center of the square base; the U-shaped universal joint fork is provided with an ear fork-shaped structure, and the ear fork-shaped structure is provided with a pair of coaxial connecting holes that match the connecting shaft.

[0009] Preferably, both the first support rod and the second support rod include a support tube, an externally threaded adjusting rod threaded to both ends of the support tube, and a limiting nut sleeved on the externally threaded adjusting rod; the support tube has internal threads at both ends, one end of the externally threaded adjusting rod is threaded to the support tube, and the other end is fixedly connected to the universal hinge seat.

[0010] Preferably, the supporting circular tube includes internally threaded sections at both ends and a hollow section between the two internally threaded sections; the inner diameter of the hollow section is larger than the major diameter of the internal threads of the internally threaded sections.

[0011] Preferably, the surfaces of the first support rod, the second support rod, the universal hinge seat, the first connecting plate, and the second connecting plate are all hot-dip galvanized.

[0012] Compared with the prior art, the V-shaped support structure for cantilevered roofs of light steel buildings proposed in this application has the following advantages: 1. Significantly Enhanced Structural Integrity and Load-Bearing Capacity: The core advantage of this invention lies in its unique structural design, which achieves a qualitative leap in structural performance. Specifically, the V-shaped support units are connected end-to-end at the cantilevered eaves through a splicing structure, integrating multiple previously discrete support units into a continuous, collaborative spatial network support system. This "chain-like" interconnected structure greatly enhances the overall stiffness and continuity of the roof. Loads (such as wind and snow loads) can be efficiently transferred and distributed between adjacent units, avoiding stress concentration, thereby significantly improving the overall stability, lateral displacement resistance, and ultimate load-bearing capacity of the structure.

[0013] 2. Rational stress distribution and high safety redundancy: The V-shaped triangular support configuration itself possesses excellent mechanical properties. Combined with the application of universal hinges, the members can undergo slight adaptive rotation under load, effectively releasing temperature stress and installation internal stress, preventing the joint failure problems common in rigid connections, and making the structural stress distribution more rational. Simultaneously, the aforementioned integral structure forms a statically indeterminate system (redundant design). Even if local components experience abnormalities, the load can be redistributed through shared nodes, preventing progressive collapse and significantly improving safety redundancy.

[0014] 3. Convenient installation and adjustment, strong engineering adaptability: The support rod adopts an adjustable length design, which facilitates precise length adjustment during installation to compensate for construction errors and easily adapts to different cantilever span requirements. The shared connection plate design enhances the structure while simplifying the node construction, reducing the number of connection plates and fasteners, lowering material costs and weight, and making installation more efficient and convenient.

[0015] 4. Good durability and economy: All major metal components are hot-dip galvanized, providing long-lasting corrosion protection, ensuring the structure's durability in outdoor environments, extending its service life, and meeting the low maintenance cost requirements of light steel buildings.

[0016] In summary, this utility model improves the stress performance through V-shaped support and universal hinge, realizing the transformation from "discrete support" to "overall coordinated work", comprehensively solving the problems of insufficient stiffness and poor stability of traditional support structures, and combining safety, adaptability and economy. Attached Figure Description

[0017] Figure 1 This is a construction drawing from the front view of an embodiment of the present utility model; Figure 2 This is a construction drawing from a side view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the V-shaped support unit in an embodiment of the present invention; Figure 4 This is a front view of the V-shaped support unit in an embodiment of this utility model; Figure 5 This is a side view of the V-shaped support unit in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first support rod in an embodiment of this utility model; Figure 7 This is an exploded view of the structure of the first support rod in this embodiment of the present invention; Figure 8 for Figure 7 A magnified view of region A in the middle.

[0018] Reference numerals: 001, V-shaped support unit; 1, first connecting plate; 2, second connecting plate; 3, first support rod; 31, support round tube; 311, internal thread section; 312, hollow section; 32, external thread adjusting rod; 33, limiting nut; 4, second support rod; 5, universal hinge seat; 51, square cross shaft; 511, square base; 512, connecting shaft; 52, first U-shaped universal joint fork; 100, wall surface; 101, cantilevered eaves. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example 1

[0020] like Figure 1-8 As shown, this embodiment provides a V-shaped support structure for cantilevered roofs of light steel structures. This structure is installed between the wall 100 and the cantilevered eaves 101 of the light steel structure. The wall 100 is the vertical load-bearing structure of the light steel structure; the cantilevered eaves 101 is the cantilevered part of the roof structure. This support structure includes multiple V-shaped support units 001, which are arranged in a linear array and spaced apart along the length of the cantilevered eaves 101 to jointly bear the roof load.

[0021] like Figure 3-5 As shown, taking a V-shaped support unit 001 as an example, it includes a first support rod 3 and a second support rod 4. The first support rod 3 and the second support rod 4 are arranged in a V-shape. They converge at one end near the wall 100 and are connected to the first connecting plate 1 through a universal hinge seat 5; they separate at one end near the cantilevered eaves 101 and are connected to the second connecting plate 2 through the universal hinge seat 5. The first connecting plate 1 is fixed to the embedded parts of the wall 100 by expansion bolts or welding; the second connecting plate 2 is fixed to the steel beam or truss of the cantilevered eaves 101 by bolts.

[0022] For the same V-shaped support unit 001, the first support rod 3 and the second support rod 4 share the same first connecting plate 1 at the end closest to the wall 100 via a universal hinge seat 5, that is, the two universal hinge seats 5 are installed on the same first connecting plate 1. This design reduces the number of connecting plates and enhances the node stiffness.

[0023] For two adjacent V-shaped support units 001, the first support rod 3 of one unit and the second support rod 4 of the other unit share the same second connecting plate 2 via a universal hinge seat 5 at the end near the cantilevered eaves 101. For example, the first support rod 3 of the first V-shaped support unit 001 and the second support rod 4 of the second V-shaped support unit 001 are connected together on a second connecting plate 2. This "chain-like" splicing method integrates multiple independent V-shaped support units 001 into a continuous overall support system, improving the structural integrity and load transfer efficiency.

[0024] like Figure 6-8 As shown, the universal joint seat 5 is a key component of the connection, allowing the rod to move slightly in multiple directions to release stress. Each universal joint seat 5 includes a square cross shaft 51 and two U-shaped universal joint forks 52. The square cross shaft 51 consists of a square base 511 and a connecting shaft 512 arranged in a cross shape at the center of the square base 511. The U-shaped universal joint forks 52 have ear-shaped structures with a pair of coaxial connecting holes. During assembly, the ear-shaped structures of the two U-shaped universal joint forks 52 are fitted onto the connecting shaft 512 and fixed by pins or bolts to achieve a rotatable connection. One U-shaped universal joint fork 52 is fixedly connected to the end of the support rod (3 or 4), and the other U-shaped universal joint fork 52 is fixedly connected to the connecting plate (1 or 2).

[0025] like Figure 6-7 As shown, the first support rod 3 and the second support rod 4 have the same structure, both employing an adjustable length design. Taking the first support rod 3 as an example, it includes a support tube 31, an externally threaded adjusting rod 32 threaded to both ends of the support tube 31, and a limiting nut 33 fitted onto the externally threaded adjusting rod 32. The support tube 31 is cylindrical, with internally threaded sections 311 machined at both ends and a hollow section 312 in the middle. The inner diameter of the hollow section 312 is larger than the major diameter of the internal thread of the internally threaded section 311 to reduce weight and facilitate machining. One end of the externally threaded adjusting rod 32 is machined with external threads, which mate with the internally threaded section 311 of the support tube 31; the other end is fixedly connected to the U-shaped universal joint fork 52 of the universal joint seat 5 (e.g., by welding or threaded connection). The limiting nut 33 is used to lock the adjusted position to prevent loosening. By rotating the support tube 31, the extension length of the externally threaded adjusting rod 32 can be changed, thereby precisely adjusting the total length of the support rod to adapt to different cantilever spans or compensate for construction errors. The structure of the second support rod 4 is the same as that of the first support rod.

[0026] All metal components, including the first support rod 3, the second support rod 4, the universal hinge seat 5, the first connecting plate 1, and the second connecting plate 2, have their surfaces treated with hot-dip galvanizing to form an anti-corrosion coating to improve durability.

[0027] During installation, first determine the positions of the connecting plates on the wall 100 and the cantilevered eaves 101 according to the design spacing. Then, prefabricate the support rods: weld the U-shaped universal joint fork 52 of the universal joint seat 5 to the end of the support rod, and weld the other U-shaped universal joint fork 52 of the universal joint seat 5 to the connecting plate. Screw the external thread adjusting rod 32 into both ends of the support round tube 31 to initially adjust the length, and install the limit nut 33; assemble the second support rod 4 in the same way. Subsequently, weld and splice the shared first connecting plate and second connecting plate 2. Finally, install it on the wall, fine-tune the length of the support rod, tighten the limit nut, and ensure structural stability.

[0028] This embodiment forms a support system that works together as a whole through the combination of V-shaped support units and the design of shared connecting plates. This effectively improves the rigidity and stability of the cantilevered roof, and is easy to install and adjust, making it suitable for various light steel building scenarios.

[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A V-shaped support structure for cantilevered roofs of light steel structures, characterized in that: It includes multiple V-shaped support units, which are arranged in a linear array and fixedly supported between the cantilevered eaves and the wall. Each of the V-shaped support units includes a first support rod and a second support rod, the first support rod and the second support rod are arranged in a V-shape, and both ends are provided with universal hinge seats; The first and second support rods are connected to the first connecting plate via a universal hinge seat at their ends near the wall. The first connecting plate is fixedly connected to the wall. The first and second support rods are connected to the second connecting plate at the ends near the cantilevered eaves via universal hinge seats, and the second connecting plate is fixedly connected to the cantilevered eaves. For the first and second support rods in the same V-shaped support unit, they share the same first connecting plate at the end near the wall via a universal hinge seat. For two adjacent V-shaped support units, the first support rod of one side and the second support rod of the other side share the same second connecting plate through a universal hinge seat at the end near the cantilevered eaves, thereby realizing the splicing of adjacent V-shaped support units.

2. The V-shaped support structure for cantilevered roofs of light steel structures according to claim 1, characterized in that: The universal joint seat includes a square cross shaft and two U-shaped universal joint forks sleeved on the square cross shaft; one of the U-shaped universal joint forks is connected to the first support rod or the second support rod, and the other U-shaped universal joint fork is connected to the first connecting plate or the second connecting plate.

3. The V-shaped support structure for cantilevered roofs of light steel buildings according to claim 2, characterized in that: The square cross shaft includes a square base and a connecting shaft with a cross-shaped structure set at the center of the square base; the U-shaped universal joint fork has an ear fork-like structure, and the ear fork-like structure has a pair of coaxial connecting holes that match the connecting shaft.

4. The V-shaped support structure for cantilevered roofs of light steel buildings according to claim 1, characterized in that: The first support rod and the second support rod each include a support round tube, an external threaded adjusting rod threaded to both ends of the support round tube, and a limiting nut sleeved on the external threaded adjusting rod; the support round tube has internal threads at both ends, one end of the external threaded adjusting rod is threaded to the support round tube, and the other end is fixedly connected to the universal hinge seat.

5. A V-shaped support structure for cantilevered roofs of light steel structures according to claim 4, characterized in that: The supporting circular tube includes internally threaded sections at both ends and a hollow section between the two internally threaded sections; the inner diameter of the hollow section is larger than the major diameter of the internal threads of the internally threaded sections.

6. A V-shaped support structure for cantilevered roofs of light steel structures according to any one of claims 1-5, characterized in that: The surfaces of the first support rod, the second support rod, the universal hinge seat, the first connecting plate, and the second connecting plate are all hot-dip galvanized.

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