Main beam of double-limb structure

Abstract

The utility model relates to the technical field of buildings, in particular to a main beam with a double-limb structure, which comprises a beam main body with a hollow structure, a containing groove for placing a batten is arranged at the top of the beam main body, two supporting parts are symmetrically arranged at the bottom of the beam main body relative to the center line of the beam main body, and a connecting groove is further arranged at the bottom of the beam main body. The two ends of the connecting groove are connected with the two supporting parts respectively. The utility model aims to overcome the defect that the existing main beam cannot have the characteristics of stable structure and simplicity and convenience in connection at the same time, and provides the main beam with the double-limb structure, which is higher in structural stability, better in bearing capacity and convenient to connect with the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, and more particularly to a main beam with a double-limb structure. Background Art

[0002] In power station construction, traditional I-beams (large formwork) are often used as main beams. While I-beams offer superior bending resistance and structural stability, they place high demands on connections. When connecting I-beams to external structural elements, precise connection techniques and stable connection points are required, otherwise the safety of the entire structure may be compromised. Therefore, developing a main beam with high structural stability and simpler connections is crucial. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the existing main beam that cannot have the characteristics of structural stability and simple connection at the same time, and to provide a main beam with a double-limb structure, which has high structural stability, good bearing capacity, and is easy to connect with the outside world.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A main beam of a double-limb structure includes a beam body with a hollow structure, a receiving groove for placing wooden blocks is provided on the top of the beam body, two supporting parts are symmetrically provided about the center line of the beam body at the bottom of the beam body, and a connecting groove is also provided at the bottom of the beam body, and the two ends of the connecting groove are respectively connected to the two supporting parts.

[0006] The present invention can be used as the main beam of a vertical wall formwork, and can also be used as the primary and secondary keels of a floor. The main beam is a thin-walled hollow design, and the two supporting parts act as two limbs to support each other and work together, thereby increasing the cross-sectional inertia moment and bending modulus of the beam body. The rational distribution of materials can effectively resist bending and torsional forces, thereby improving the stability and bearing capacity of the overall structure of the main beam. The receiving groove provided at the top is used to place wooden strips, which can be fixed with plywood panels. The connecting groove provided at the bottom of the beam body can also facilitate the connection and fixation of the main beam with other components. Therefore, the top and bottom of the main beam of the present invention are structures that are convenient for connection with the outside world, and can be connected with the outside world relatively easily. During use, the construction efficiency can be improved.

[0007] Furthermore, the main beam structure is axisymmetric. The centerline of the main beam serves as the central axis, with both sides of the main beam symmetrically arranged about the axis. Both support portions extend outward from the main beam and are symmetrically arranged about the axis. This axisymmetric structure provides a more balanced load-bearing capacity on both sides of the main beam, further improving the structural stability and load-bearing capacity of the main beam. Furthermore, the axisymmetric structure of the main beam is more aesthetically pleasing.

[0008] Furthermore, the connecting groove is a dovetail groove structure, and the connecting groove is also symmetrically arranged about the central axis of the beam body. On the one hand, the connecting groove has the function of connecting the two supporting parts; on the other hand, the connecting groove also serves as a place for the bottom of the beam body to establish a connection with the outside world, which can facilitate the connection and fixation of the beam body with other components; furthermore, the connecting groove also has a guiding function during the installation and disassembly of the beam body. The connecting groove of the dovetail groove structure is one of the preferred ones. The unique shape of the dovetail groove makes the connecting groove more stable when subjected to tension, pressure and shear force, and has a certain degree of guidance during installation and disassembly, and the operation is relatively simple.

[0009] Furthermore, the receiving groove is a U-shaped structure. The receiving groove is located at the top of the beam body. The U-shaped structure facilitates the placement of wooden planks, facilitating the nailing and locking of the beam body and the panel. Self-drilling and self-tapping screws with waterproof rubber pads can also be used to tighten from the side of the beam body toward the wooden planks to secure the wooden planks. The wooden planks are replaceable components.

[0010] Furthermore, the inner side of the receiving groove is provided with tooth-like protrusions. These tooth-like protrusions are located on opposite sides of the U-shaped structure of the receiving groove to provide anti-slip protection. When the wood is driven into the receiving groove, it engages with the tooth-like protrusions, thereby further tightening the connection between the wood and the beam body. Within the knowledge of those skilled in the art, the tooth-like protrusions can also be replaced with other structures to increase the friction between the receiving groove and the wood, provide anti-slip protection, and improve the reliability of the connection between the beam body and the wood.

[0011] Furthermore, sealing plates are fixedly connected to each end of the beam body to shield the hollow structure of the beam body. These plates can be welded to the beam body, sealing the ports of the beam body to prevent foreign matter from entering the hollow interior of the beam body. This reduces the risk of damage to the beam body's internal structure from cement or foreign matter accumulation, thereby enhancing the integrity and durability of the main beam's overall structure. They also help maintain the geometric shape and dimensional stability of the beam body, preventing deformation of the ports during use.

[0012] Furthermore, protective sleeves conforming to the beam body are fitted over both ends of the beam body. The ends of the beam body are protected by the conforming sleeves, with a sealing plate positioned between the sleeves and the beam body. Preferably, the sleeves are secured to the beam body with rivets. The sleeves possess a certain degree of elasticity, providing a cushioning effect against impacts to the exterior of the beam body, reducing the impact of vibrations on the main beam structure and connecting components. This prevents the main beam from direct contact with other objects, thereby reducing scratches and wear, and extending the service life of the main beam.

[0013] Furthermore, the protective cover is made of plastic material. Plastic material has a certain tolerance. Preferably, the protective cover is interference-fitted with the beam body to further enhance the shock-absorbing and buffering effect of the protective cover. Moreover, the beam body can be made more compact after the protective cover is installed, without affecting the building space occupied by the beam body.

[0014] Furthermore, the support part is a square hollow structure. The support part serves as the limb of the beam body, plays a supporting role, and improves the stability of the main beam; the hollow structure of the support part can reduce the overall weight of the main beam.

[0015] Furthermore, the main body of the beam is made of aluminum alloy. The density of aluminum alloy is relatively low, which makes the main beam relatively light, easy to carry and install, and reduces the labor intensity of construction workers. At the same time, its strength is high, which can meet construction requirements. It has good corrosion resistance in various environments, can be used for a long time, and reduces maintenance costs. Aluminum alloy also has good corrosion resistance and can maintain stable performance in a certain corrosive environment during the construction of the power station. Secondly, its lightweight characteristics also help to reduce the weight of the overall structure and reduce construction and operating costs. Preferably, the main body of the beam is made of aluminum alloy 6061-T6 and is formed by one-piece extrusion.

[0016] The beneficial effects of the utility model are:

[0017] The main body of the beam is made of aluminum alloy, which has good corrosion resistance and can maintain stable performance in the complex and corrosive environment of power station construction. Secondly, the lightweight characteristics of aluminum alloy help to reduce the weight of the overall structure and reduce construction and operating costs. The two symmetrical support parts support and work together to effectively resist bending and torsional forces, increasing the stability and bearing capacity of the structure; a U-shaped connection groove with anti-slip tooth-like raised patterns is set on the top of the beam body, which can be used to place wooden strips and facilitate fixation with plywood panels. The bottom of the beam body is provided with a connection groove with a dovetail structure, which can not only facilitate the connection and fixation of the beam body with other components, but also increase the integrity between the two support parts, thereby improving the stability of the overall structure of the beam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the first direction of the utility model.

[0019] Figure 2 It is a structural diagram of the second direction of the utility model.

[0020] Figure 3 yes Figure 2 Middle BB cross-section view.

[0021] Figure 4 yes Figure 2 Middle CC section view.

[0022] Figure 5 It is a partial exploded structural diagram of the present utility model.

[0023] The symbols in the diagram are explained as follows:

[0024] 1. Beam body; 2. Receiving groove; 3. Support part; 4. Connecting groove; 5. Tooth-shaped protrusion; 6. Closing plate; 7. Protective cover; 8. Wooden square. DETAILED DESCRIPTION

[0025] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0028] Example 1

[0029] like Figures 1 to 5 The figure shows an embodiment 1 of a main beam of a double-limb structure of the utility model, comprising a beam body 1 of a hollow structure, a receiving groove 2 for placing wooden squares 8 provided on the top of the beam body 1, two supporting parts 3 symmetrically provided about the center line of the beam body 1 at the bottom of the beam body 1, and a connecting groove 4 provided at the bottom of the beam body 1, the two ends of the connecting groove 4 being respectively connected to the two supporting parts 3.

[0030] The present invention can be used as the main beam of a vertical wall formwork, and can also be used as the primary and secondary keels of a floor. The main beam is a thin-walled hollow design, and the two supporting parts 3 act as two limbs to support each other and work together, thereby increasing the section inertia moment and bending modulus of the beam body 1. The reasonable distribution of materials can effectively resist bending and torsional forces, thereby improving the stability and bearing capacity of the overall structure of the main beam; the receiving groove 2 provided at the top is used to place wooden strips, which can be fixed with plywood panels, and the connecting groove 4 provided at the bottom of the beam body 1 can also facilitate the connection and fixation of the main beam with other components. Therefore, the top and bottom of the main beam of the present invention are structures that are convenient for connection with the outside world, and can be connected with the outside world more easily. During use, the construction efficiency can be improved.

[0031] As an improvement to this embodiment, the main beam 1 has an axisymmetric structure. The centerline of the main beam 1 serves as the central axis, with both sides of the main beam 1 symmetrically arranged about the central axis. The two support portions 3 extend outward from the main beam 1 and are symmetrically arranged about the central axis of the main beam 1. This axisymmetric structure provides a more balanced load-bearing capacity on both sides of the main beam 1, further improving the structural stability and load-bearing capacity of the main beam. Furthermore, the axisymmetric structure of the main beam 1 is more aesthetically pleasing.

[0032] As an improvement to this embodiment, the connecting groove 4 is a dovetail groove structure, and the connecting groove 4 is also symmetrically arranged about the central axis of the beam body 1. On the one hand, the connecting groove 4 has the function of connecting the two supporting parts 3; on the other hand, the connecting groove 4 also serves as a place where the bottom of the beam body 1 is connected to the outside world, which can facilitate the connection and fixation of the beam body 1 with other components; furthermore, the connecting groove 4 also has a guiding function during the installation and disassembly of the beam body 1. The connecting groove 4 with a dovetail groove structure is one of the preferred options. The unique shape of the dovetail groove makes the connecting groove 4 more stable when subjected to tension, pressure and shear force, and has a certain degree of guidance during installation and disassembly, making the operation relatively simple.

[0033] As an improvement to this embodiment, the receiving groove 2 is a U-shaped structure. The receiving groove 2 is located at the top of the beam body 1. The U-shaped structure facilitates the placement of the wood 8, facilitating the nailing and locking of the beam body 1 to the panel. Self-drilling and self-tapping screws with waterproof rubber pads can also be used to tighten the wood 8 from the side of the beam body 1 toward the wood 8 to secure the wood 8. The wood 8 is a replaceable component.

[0034] As an improvement to this embodiment, tooth-like protrusions 5 are provided on the inner side of the receiving groove 2. These tooth-like protrusions 5 are located on opposite sides of the U-shaped structure of the receiving groove 2 to provide anti-slip protection. When the wooden plank 8 is driven into the receiving groove 2, it engages with the tooth-like protrusions 5, further tightening the connection between the wooden plank 8 and the beam body 1. Within the scope of knowledge of those skilled in the art, the tooth-like protrusions 5 can be replaced with other structures to increase the friction between the receiving groove 2 and the wooden plank 8, provide an anti-slip effect, and improve the reliability of the connection between the beam body 1 and the wooden plank 8.

[0035] As an improvement to this embodiment, the support portion 3 is a square hollow structure. The support portion 3 serves as the limb of the beam body 1, providing support and improving the stability of the main beam. The hollow structure of the support portion 3 can reduce the overall weight of the main beam.

[0036] As an improvement to this embodiment, the beam body 1 is made of aluminum alloy. The density of aluminum alloy is relatively low, which makes the main beam relatively light, easy to carry and install, and reduces the labor intensity of construction workers. At the same time, its strength is high, which can meet construction requirements. It has good corrosion resistance in various environments, can be used for a long time, and reduces maintenance costs. Aluminum alloy also has good corrosion resistance and can maintain stable performance in an environment with certain corrosiveness during the construction of the power station. Secondly, its lightweight characteristics also help to reduce the weight of the overall structure and reduce construction and operating costs. Preferably, the beam body 1 is made of aluminum alloy 6061-T6 and is formed by integral extrusion. Compared with the main beam of the traditional wooden I-beam large formwork, due to the relatively low strength and rigidity of wood, especially after bearing large loads for a long time, problems such as deformation and cracking may occur. Wood is also affected by humidity and temperature changes, and is prone to expansion or contraction, affecting the safe operation of the power station. The present utility model uses aluminum alloy materials, which are higher in strength, less prone to deformation, and better in safety.

[0037] The main beam of the double-limb structure of the present invention has high structural stability, good load-bearing capacity, and is easy to connect to the outside world. In this embodiment, the two symmetrical support parts 3 support each other and work together, which can effectively resist bending and torsional forces, thereby increasing the stability and load-bearing capacity of the structure; the top of the beam body 1 is provided with a U-shaped connecting groove 4 with anti-slip tooth-like protrusions 5, which can be used to place wooden strips and facilitate fixation with plywood panels. The bottom of the beam body 1 is provided with a connecting groove 4 with a dovetail groove structure, which can not only facilitate the connection and fixation of the beam body 1 with other components, but also increase the integrity between the two support parts 3, thereby improving the stability of the overall structure of the beam body 1.

[0038] Example 2

[0039] This embodiment is a second embodiment of a dual-limb main beam. This embodiment is similar to the first embodiment, differing in that a sealing plate 6, used to shield the hollow structure of the beam body 1, is fixedly connected to each end of the beam body 1. The sealing plates 6 can be welded to the beam body 1, sealing the ports of the beam body 1 to prevent foreign matter from entering the hollow interior of the beam body 1. This reduces the risk of damage to the internal structure of the beam body 1 from cement or foreign matter accumulation, thereby enhancing the integrity and durability of the main beam's overall structure. This also helps maintain the geometric shape and dimensional stability of the beam body 1, preventing deformation of the ports of the beam body 1 during use.

[0040] Example 3

[0041] This embodiment is another embodiment of a main beam with a double-limb structure. This embodiment is similar to embodiment 1, except that protective sleeves 7 having a shape matching that of the beam main body 1 are sleeved on both ends of the beam main body 1. The ends of the beam main body 1 are protected by the protective sleeves 7 having a shape matching that of the beam main body 1, and the sealing plate 6 is located between the protective sleeves 7 and the beam main body 1. Preferably, rivets are used to fix the protective sleeves 7 to the beam main body 1. The protective sleeves 7 have a certain degree of elasticity and can act as a buffer when the outside of the beam main body 1 is impacted, thereby reducing the impact of vibration on the structure and connecting parts of the main beam. This can prevent the main beam from directly contacting other objects, thereby reducing scratches and wear and extending the service life of the main beam.

[0042] As an improvement to this embodiment, the protective cover 7 is made of plastic material. Plastic material has a certain tolerance. Preferably, the protective cover 7 is interference-fitted with the beam body 1 to further enhance the shock-absorbing and buffering effect of the protective cover 7. Moreover, the beam body 1 can be made more compact after the protective cover 7 is installed, without affecting the building space occupied by the beam body.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A main beam of a double-limb structure, characterized in that: The invention comprises a beam body (1) with a hollow structure, wherein a receiving groove (2) for placing a wood block (8) is provided at the top of the beam body (1), two supporting parts (3) are symmetrically provided at the bottom of the beam body (1) about the center line of the beam body (1), and a connecting groove (4) is further provided at the bottom of the beam body (1), wherein both ends of the connecting groove (4) are respectively connected to the two supporting parts (3).

2. The main beam of the double-limb structure according to claim 1, characterized in that: The beam body (1) is an axisymmetric structure.

3. The main beam of the double-limb structure according to claim 2, characterized in that: The connecting groove (4) is a dovetail groove structure, and the connecting groove (4) is also symmetrically arranged about the central axis of the beam body (1).

4. The main beam of the double-limb structure according to claim 1, characterized in that: The accommodating groove (2) is a U-shaped structure.

5. The main beam of the double-limb structure according to claim 4, characterized in that: A tooth-shaped protrusion (5) is provided on the inner side of the accommodating groove (2).

6. The main beam of the double-limb structure according to any one of claims 1 to 5, characterized in that: Both ends of the beam body (1) are respectively fixedly connected with sealing plates (6) for shielding the hollow structure of the beam body (1).

7. The main beam of the double-limb structure according to claim 6, characterized in that: Both ends of the beam body (1) are sleeved with protective sleeves (7) whose shapes match those of the beam body (1).

8. The main beam of the double-limb structure according to claim 7, characterized in that: The protective cover (7) is made of plastic material.

9. The main beam of the double-limb structure according to claim 1, characterized in that: The supporting portion (3) is a square hollow structure.

10. The main beam of the double-limb structure according to claim 1, characterized in that: The beam body (1) is made of aluminum alloy material.

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