Reinforced concrete cantilever beam connecting mechanism

Abstract

The utility model relates to beam connecting structure technical field, concretely relates to a reinforced concrete overhanging beam connecting mechanism, including main body framework, first overhanging framework and second overhanging framework, first overhanging framework with second overhanging framework all are connected with main body framework, be provided with main steel arm in main body framework, be provided with first cantilever steel in first overhanging framework, be provided with second cantilever steel in second overhanging framework, be provided with connecting piece on main steel arm, connecting piece is connected with first cantilever steel with second cantilever steel respectively, connecting piece includes connecting plate, first clamping part and second clamping part, connecting plate with first cantilever steel and second cantilever steel are connected, first clamping part carries out clamping fixed to first cantilever steel, second clamping part carries out clamping fixed to second cantilever steel, for installing two overhanging beams on the same main body structure.

Description

Technical Field

[0001] This utility model relates to the field of beam connection structure technology, specifically to a reinforced concrete cantilever beam connection mechanism. Background Technology

[0002] In the field of building structures, reinforced concrete cantilever beams are a crucial and widely used structural form. They create unobstructed indoor and outdoor spaces by fixing one end and allowing the other end to cantilever freely, and are commonly found in structures such as balconies, canopies, and roof slabs. Because the root of the cantilever beam bears huge bending moments and shear forces, its connection node with the main structure is a critical link in the entire force transmission path. The design of this node must be safe and reliable, with clear force transmission, while also taking into account construction convenience and quality control.

[0003] Chinese patent disclosure CN 217325785 U discloses a cantilever beam connection structure for connecting a main body and a cantilever beam. The cantilever beam connection structure includes: a connector fixedly connected to the main body, the height of the connector being the same as the height of the cantilever beam; a first end plate fixed to the connector; and a second end plate fixedly connected to one end of the cantilever beam. The first end plate and the second end plate are detachably connected. By pre-fixing the connector to the first end plate and the main body, and pre-fixing the second end plate to the cantilever beam, the main body and the cantilever beam can be quickly and safely connected at the construction site via the first end plate and the second end plate. While this technical solution improves construction convenience to some extent, its core design concept and specific structure are designed for the connection of a single cantilever beam to the main structure. In actual engineering, to meet greater load requirements, wider cantilever spans, or specific architectural shapes, it is often necessary to install two cantilever beams at a specific angle on the same main structure. In this case, simply applying the above-mentioned single cantilever beam connection scheme will not only result in a lack of effective lateral connection between adjacent cantilever beams, poor overall integrity, and difficulty in coordinating stress, but may also cause damage and weakening to the main structure and lead to complex stress superposition problems.

[0004] Therefore, in view of this, the inventors propose a reinforced concrete cantilever beam connection mechanism to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a connection mechanism for reinforced concrete cantilever beams, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A reinforced concrete cantilever beam connection mechanism includes a main frame, a first cantilever frame, and a second cantilever frame, wherein both the first cantilever frame and the second cantilever frame are connected to the main frame. The main frame is provided with a main steel arm, the first cantilever frame is provided with a first cantilever steel, the second cantilever frame is provided with a second cantilever steel, and the main steel arm is provided with a connector, which is connected to the first cantilever steel and the second cantilever steel respectively. The connector includes a connecting plate, a first clamping part, and a second clamping part. The connecting plate is connected to the first cantilever steel and the second cantilever steel. The first clamping part clamps and fixes the first cantilever steel, and the second clamping part clamps and fixes the second cantilever steel.

[0007] According to the above technical solution, a main steel arm is pre-embedded within the main frame as a core load-bearing component, while a first cantilever steel and a second cantilever steel are pre-embedded within the first and second cantilever frames, respectively. During operation, the connectors set on the main steel arm serve as key force transmission hubs, with their connecting plates simultaneously connected to both the first and second cantilever steels. Specially designed first and second clamping parts securely clamp and fix the first and second cantilever steels, respectively. This structure allows loads (such as bending moments and shear forces) from the two cantilever beams to be effectively transferred to the connectors through the internal cantilever steels, then collected and transferred to the main steel arm within the main frame via the connectors, and finally safely introduced into the main structure. This design not only achieves synchronous and reliable connection between the two cantilever beams and the main structure but also enhances the lateral connection and collaborative working ability between adjacent cantilever beams through the integral construction of the connectors, thereby effectively improving the overall load-bearing performance of the structure.

[0008] Furthermore, the first clamping part includes two first clamping plates, each of which has a plurality of first transverse holes, and the first cantilever steel has a plurality of second transverse holes. The first cantilever steel can extend between the two first clamping plates, and the first transverse holes and the second transverse holes are correspondingly arranged.

[0009] Furthermore, the two first clamping plates are mounted on the first cantilever steel, and the main steel arm is provided with a plurality of third transverse holes, and the two first clamping plates are provided with a plurality of fourth transverse holes, with the third transverse holes and the fourth transverse holes being arranged correspondingly.

[0010] Furthermore, the second clamping part includes two second clamping plates, each of which has a plurality of fifth transverse holes, and the second cantilever steel has a plurality of sixth transverse holes. The second cantilever steel can extend between the two second clamping plates, and the fifth transverse holes and the sixth transverse holes are arranged correspondingly.

[0011] Furthermore, a vertical plate is provided on the connecting plate, the vertical plate is fixedly connected to the connecting plate, and the two second clamping plates are fixedly connected to the vertical plate; The vertical plate has several seventh horizontal holes, and the main steel arm has an eighth horizontal hole. The seventh and eighth horizontal holes are respectively set to correspond to the first horizontal hole.

[0012] Furthermore, the connecting plate is provided with a plurality of first vertical holes and a plurality of second vertical holes, the first cantilever steel is provided with a third vertical hole, and the second cantilever steel is provided with a fourth vertical hole. The first vertical holes are provided in correspondence with the third vertical holes, and the second vertical holes are provided in correspondence with the fourth vertical holes.

[0013] Furthermore, the second cantilever frame has a plurality of symmetrically arranged first connecting strips, the first cantilever frame is erected between the first connecting strips, and the first cantilever frame is fixedly connected to each of the first connecting strips.

[0014] Furthermore, a plurality of symmetrically arranged second connecting strips are formed on the main frame, the connecting strips passing through the first cantilever frame and being fixedly connected to each of the first connecting strips.

[0015] Several first connecting strips are symmetrically arranged on the second cantilever frame to form a temporary support bracket. The first cantilever frame is then erected and placed between these symmetrical first connecting strips. The first cantilever frame and each first connecting strip are fixed together by welding or bolting, thus completing the lateral connection and positioning between the two cantilever frames in advance. On this basis, several second connecting strips symmetrically arranged on the main frame pass through the already positioned first cantilever frame and are finally connected and fixed with the first connecting strips that have been fixed to the first cantilever frame. This connects the main frame, the first cantilever frame and the second cantilever frame into a stable rigid spatial frame, providing a reliable formwork and reinforcement positioning foundation for subsequent concrete pouring. Finally, after the concrete is poured, the steel structure system and the concrete combine to form a reinforced concrete cantilever beam that can cooperate in bearing the load.

[0016] Furthermore, the first cantilever steel, the second cantilever steel, and the main steel arm are arranged perpendicularly to each other.

[0017] Furthermore, the first cantilever steel, the second cantilever steel, and the main steel arm are all I-beams.

[0018] The beneficial effects of this utility model are: This application securely clamps the cantilever steel within two cantilever beams using its first and second clamping parts, and forms a three-dimensional force transmission path through multiple bolt connections in the horizontal and vertical directions. This not only ensures that the bending moment and shear force from the two cantilever beams can be efficiently collected and transmitted to the main structure, but also significantly enhances the lateral connection and integrity between adjacent cantilever beams, enabling them to work together and share the load. This effectively overcomes the technical defects of poor integrity and unclear force distribution in traditional single-beam connection schemes when applied to multi-beam scenarios.

[0019] This application assembles the various steel structural frames into a stable, rigid spatial frame before concrete pouring. The first connecting strip on the second cantilever frame provides positioning and support for the first cantilever frame, while the second connecting strip on the main frame runs through it, ultimately connecting the three into a single unit. This facilitates positioning and installation on the construction site, ensures the accuracy of the reinforcement and formwork positions, effectively improves construction efficiency and quality control, and results in a compact and highly practical structure. Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of this application. The objectives and other advantages of this application can be realized and obtained through the specific embodiments described below. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the water treatment shell of this utility model; Figure 2 This is a schematic diagram of the structure of the switching component for closing the branch flow channel of the reinforced concrete cantilever beam connection mechanism of this utility model; Figure 3 A cross-sectional view of the branch flow channel opening of the switching component of the reinforced concrete cantilever beam connection mechanism of this utility model. Figure 4 This is a cross-sectional structural schematic diagram of the switching component of the reinforced concrete cantilever beam connection mechanism of this utility model, which closes the branch flow channel. Figure 5 This is a schematic diagram of the switching component in the reinforced concrete cantilever beam connection mechanism of this utility model; Figure 6 This is a schematic diagram showing the disassembled structure of the connecting parts in the reinforced concrete cantilever beam connection mechanism of this utility model.

[0021] The components include: main frame 1, second connecting strip 11, first cantilever frame 2, second cantilever frame 3, first connecting strip 31, main steel arm 4, first cantilever steel 5, second cantilever steel 6, connector 7, connecting plate 71, first vertical hole 711, second vertical hole 712, third vertical hole 713, fourth vertical hole 714, first clamping part 72, first clamping plate 721, second clamping part 73, vertical plate 74, second clamping plate 731, first horizontal hole 81, second horizontal hole 82, third horizontal hole 83, fourth horizontal hole 84, fifth horizontal hole 85, sixth horizontal hole 86, seventh horizontal hole 87, and eighth horizontal hole 88. Detailed Implementation

[0022] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] This embodiment proposes a connection mechanism for reinforced concrete cantilever beams, such as... Figures 1 to 6 As shown, the system includes a main frame 1, a first cantilever frame 2, and a second cantilever frame 3, both of which are connected to the main frame 1. A main steel arm 4 is installed within the main frame 1, a first cantilever steel 5 is installed within the first cantilever frame 2, and a second cantilever steel 6 is installed within the second cantilever frame 3. The first cantilever steel 5, the second cantilever steel 6, and the main steel arm 4 are arranged perpendicularly to each other, and all three are I-beams. A connector 7 is installed on the main steel arm 4, connecting to both the first cantilever steel 5 and the second cantilever steel 6. The connector 7 includes a connecting plate 71, a first clamping part 72, and a second clamping part 73. The connecting plate 71 connects to both the first cantilever steel 5 and the second cantilever steel 6, the first clamping part 72 clamps and fixes the first cantilever steel 5, and the second clamping part 73 clamps and fixes the second cantilever steel 6.

[0025] In this embodiment, a main steel arm 4 is pre-embedded in the main frame 1 as a core load-bearing component. A first cantilever steel 5 and a second cantilever steel 6 are pre-embedded in the first cantilever frame 2 and the second cantilever frame 3, respectively. A connector 7 set on the main steel arm 4 serves as a key force transmission hub. A connecting plate 71 is connected to both the first cantilever steel 5 and the second cantilever steel 6. A first clamping part 72 and a second clamping part 73 are respectively used to connect and fix the first cantilever steel 5 and the second cantilever steel 6. This structure allows the loads (such as bending moment and shear force) from the first cantilever frame 2 and the second cantilever frame 3 to be transmitted to the connector 7 through the first cantilever steel 5 and the second cantilever steel 6 inside them. Then, the loads are collected by the connector 7 and transmitted to the main steel arm 4 in the main frame 1, and finally safely introduced into the main frame 1. This not only achieves a synchronous and reliable connection between the two cantilever beams and the main structure, but also enhances the lateral connection and collaborative working ability between adjacent cantilever beams through the integral structure of the connector 7, thereby effectively improving the overall load-bearing performance of the structure.

[0026] In a preferred embodiment, the first clamping part 72 includes two first clamping plates 721. Each of the two first clamping plates 721 is provided with a plurality of first horizontal holes 81, and the first cantilever steel 5 is provided with a plurality of second horizontal holes 82. The first cantilever steel 5 can extend between the two first clamping plates 721, and each first horizontal hole 81 is correspondingly provided with each second horizontal hole 82.

[0027] In a preferred embodiment, two first clamping plates 721 are mounted on the first cantilever steel 5. The main steel arm 4 has several third transverse holes 83, and the two first clamping plates 721 have several fourth transverse holes 84, with each third transverse hole 83 corresponding to each fourth transverse hole 84. The first cantilever steel 5, pre-embedded within the first cantilever frame 2, is inserted between the two first clamping plates 721. By aligning the first transverse holes 81 with the second transverse holes 82 on the cantilever steel and inserting transverse bolts or pins, the first clamping part 72 clamps and fixes the first cantilever steel 5. The clamping unit aligns the fourth transverse holes 84 on the first clamping plate 721 with the third transverse holes 83 on the main steel arm 4, and is also tightened using connecting bolts. Ultimately, the load from the first cantilever steel 5 is effectively transferred to the main steel arm 4 within the main frame 1 through the first clamping plates 721, achieving smooth force conversion and transmission.

[0028] In a preferred embodiment, the second clamping part 73 includes two second clamping plates 731. Each of the two second clamping plates 731 has a plurality of fifth transverse holes 85, and the second cantilever steel 6 has a plurality of sixth transverse holes 86. The second cantilever steel 6 can extend between the two second clamping plates 731. The fifth transverse holes 85 and the sixth transverse holes 86 are correspondingly arranged. The second cantilever steel 6, pre-embedded in the second cantilever frame 3, is inserted into the second clamping part 73 composed of the two second clamping plates 731. This is achieved by aligning the fifth transverse holes 85 on the two second clamping plates 731 with the second cantilever steel 6. The sixth horizontal hole 86 on the steel 6 is precisely aligned and inserted into the horizontal connecting piece 7 (such as a bolt), thereby completing the clamping and fixing of the second cantilever steel 6 by the second clamping part 73; a vertical plate 74 is provided on the connecting plate 71, and the vertical plate 74 is fixedly connected to the connecting plate 71 (specifically, it can be connected by welding or integral molding); two second clamping plates 731 are fixedly connected to the vertical plate 74; a number of seventh horizontal holes 87 are opened on the vertical plate 74; an eighth horizontal hole 88 is opened on the main steel arm 4; the seventh horizontal holes 87 and the eighth horizontal holes 88 are both set corresponding to the first horizontal hole 81. Meanwhile, the vertical plate 74 fixedly connected to the connecting plate 71, and the two second clamping plates 731 fixed on the vertical plate 74 together form a rigid node. The rigid node is finally positioned through a through-type connection operation, that is, the transverse connector 7 is used to pass through the first transverse hole 81 on the first clamping plate 721, the eighth transverse hole 88 on the main steel arm 4, and the seventh transverse hole 87 on the vertical plate 74 in sequence (these holes are designed to correspond to each other), thereby tightly connecting the first clamping part 72 that has clamped the first cantilever steel 5 and the connector 7 together with the main steel arm 4 in the main frame 1, and finally forming a connection node that can cooperate in bearing force, has a clear force transmission path, and has strong integrity.

[0029] In a preferred embodiment, the connecting plate 71 is provided with a plurality of first vertical holes 711 and a plurality of second vertical holes 712, the first cantilever steel 5 is provided with a third vertical hole 713, and the second cantilever steel 6 is provided with a fourth vertical hole 714. The first vertical holes 711 and the third vertical holes 713 are provided in correspondence, and the second vertical holes 712 and the fourth vertical holes 714 are provided in correspondence. After the connecting plate 71 is horizontally overlapped on the first cantilever steel 5 and the second cantilever steel 6, the first vertical hole 711 on the connecting plate 71 is precisely aligned with the third vertical hole 713 at the end of the first cantilever steel 5, and vertical bolts or pins are inserted for fastening. At the same time, on the other side, the second vertical hole 712 on the connecting plate 71 is aligned with the fourth vertical hole 714 at the end of the second cantilever steel 6 and fastened in the same way. Thus, on the basis of fixation, an additional strong shear-resistant connection is established. This design enables the first cantilever steel 5, the second cantilever steel 6 and the connecting plate 71 to not only transmit lateral forces, but also effectively resist vertical shear forces and prevent relative displacement. Finally, together with the clamping structure, it forms a solid three-dimensional force transmission system, ensuring the high reliability and stability of the connection node under multi-directional loads.

[0030] In a preferred embodiment, a plurality of symmetrically arranged first connecting strips 31 are formed on the second cantilever frame 3, the first cantilever frame 2 is erected between the first connecting strips 31, and the first cantilever frame 2 is fixedly connected to each of the first connecting strips 31. A plurality of symmetrically arranged second connecting strips 11 are formed on the main frame 1, and the second connecting strips 11 penetrate the first cantilever frame 2 and are fixedly connected to each of the first connecting strips 31. A number of first connecting strips 31 are symmetrically arranged on the second cantilever frame 3 to form a temporary support bracket. The first cantilever frame 2 is then erected and placed between these symmetrical first connecting strips 31, and fixed together with each first connecting strip 31 by welding or other methods, achieving lateral connection and positioning between the two cantilever frames. Based on this, a number of second connecting strips 11 symmetrically arranged on the main frame 1 pass through the first cantilever frame 2 and are finally connected and fixed to the first connecting strips 31 on the first cantilever frame 2, connecting the main frame 1, the first cantilever frame 2, and the second cantilever frame 3 into a stable rigid spatial frame. This provides a reliable formwork and reinforcement positioning foundation for subsequent concrete pouring. Finally, after concrete pouring, it combines with the concrete to form a reinforced concrete cantilever that can withstand loads collaboratively. The structure is compact and has high application value. The above embodiments are merely preferred embodiments for fully illustrating this utility model, and the protection scope of this utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this utility model are all within the protection scope of this utility model.

Claims

1. A reinforced concrete cantilever beam connection mechanism, characterized in that, include: The main frame (1), the first cantilever frame (2) and the second cantilever frame (3) are connected to the main frame (1); The main frame (1) is provided with a main steel arm (4), the first cantilever frame (2) is provided with a first cantilever steel (5), the second cantilever frame (3) is provided with a second cantilever steel (6), and the main steel arm (4) is provided with a connector (7), which is connected to the first cantilever steel (5) and the second cantilever steel (6) respectively. The connector (7) includes a connecting plate (71), a first clamping part (72) and a second clamping part (73). The connecting plate (71) is connected to the first cantilever steel (5) and the second cantilever steel (6). The first clamping part (72) clamps and fixes the first cantilever steel (5), and the second clamping part (73) clamps and fixes the second cantilever steel (6).

2. The reinforced concrete cantilever beam connection mechanism according to claim 1, characterized in that: The first clamping part (72) includes two first clamping plates (721). Each of the two first clamping plates (721) is provided with a plurality of first transverse holes (81). The first cantilever steel (5) is provided with a plurality of second transverse holes (82). The first cantilever steel (5) can extend between the two first clamping plates (721). The first transverse holes (81) and the second transverse holes (82) are correspondingly arranged.

3. The reinforced concrete cantilever beam connection mechanism according to claim 2, characterized in that: Two first clamping plates (721) are installed on the first cantilever steel (5). The main steel arm (4) is provided with a number of third horizontal holes (83) and the two first clamping plates (721) are provided with a number of fourth horizontal holes (84). The third horizontal holes (83) and the fourth horizontal holes (84) are provided in a corresponding manner.

4. The reinforced concrete cantilever beam connection mechanism according to claim 3, characterized in that: The second clamping part (73) includes two second clamping plates (731), each of the two second clamping plates (731) is provided with a plurality of fifth transverse holes (85), and the second cantilever steel (6) is provided with a plurality of sixth transverse holes (86). The second cantilever steel (6) can extend between the two second clamping plates (731), and the fifth transverse holes (85) and the sixth transverse holes (86) are provided correspondingly.

5. The reinforced concrete cantilever beam connection mechanism according to claim 4, characterized in that: A vertical plate (74) is provided on the connecting plate (71), the vertical plate (74) is fixedly connected to the connecting plate (71), and the two second clamping plates (731) are fixedly connected to the vertical plate (74); The vertical plate (74) has several seventh horizontal holes (87), and the main steel arm (4) has an eighth horizontal hole (88). The seventh horizontal holes (87) and the eighth horizontal holes (88) are both corresponding to the first horizontal hole (81).

6. The reinforced concrete cantilever beam connection mechanism according to claim 5, characterized in that: The connecting plate (71) has a plurality of first vertical holes (711) and a plurality of second vertical holes (712), the first cantilever steel (5) has a third vertical hole (713), and the second cantilever steel (6) has a fourth vertical hole (714). The first vertical holes (711) are corresponding to the third vertical holes (713), and the second vertical holes (712) are corresponding to the fourth vertical holes (714).

7. The reinforced concrete cantilever beam connection mechanism according to claim 6, characterized in that: The second cantilever frame (3) has a plurality of symmetrically arranged first connecting strips (31), the first cantilever frame (2) is erected between the first connecting strips (31), and the first cantilever frame (2) is fixedly connected to each of the first connecting strips (31).

8. The reinforced concrete cantilever beam connection mechanism according to claim 7, characterized in that: A plurality of symmetrically arranged second connecting strips (11) are formed on the main frame (1), the connecting strips passing through the first cantilever frame (2) and being fixedly connected to each of the first connecting strips (31).

9. The reinforced concrete cantilever beam connection mechanism according to any one of claims 1 to 8, characterized in that: The first cantilever steel (5), the second cantilever steel (6), and the main steel arm (4) are arranged perpendicularly to each other.

10. The reinforced concrete cantilever beam connection mechanism according to any one of claims 1 to 8, characterized in that: The first cantilever steel (5), the second cantilever steel (6) and the main steel arm (4) are all I-beams.

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