Connecting structure of large cast steel joint and steel member
Through modular design and snap-fit connection structure, the problems of high construction difficulty and insufficient wind resistance stability in complex geometries and large-span structures by traditional connection methods are solved, achieving efficient connection and improved stability, and extending the service life and safety of the structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional methods of connecting large cast steel nodes and steel components present challenges in complex geometries and large-span structures, including high construction difficulty and insufficient wind resistance. In particular, they are prone to safety hazards and stress concentration under high wind loads.
The design adopts a modular approach and a snap-fit connection method. The cast steel node body is welded and snap-fitted to the steel component body. Combined with the unique structure of the support and transition parts, the external load is distributed and the connection strength and stability are enhanced.
It simplifies the construction process, improves construction efficiency, enhances the wind resistance and overall stability of the structure, reduces the risk of structural damage, extends service life, and improves safety.
Smart Images
Figure CN224031891U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, especially large cast steel node and steel member's connecting structure. BACKGROUND
[0002] In modern building structure engineering, the connection of large cast steel nodes and steel members is a key link to ensure the safety and stability of the overall structure. Traditional connection methods usually rely on welding or bolt connection, which, although widely used, has significant limitations in complex geometric shapes and large-span structures. Especially during on-site construction, due to the high precision requirements of traditional connection methods, a large amount of on-site adjustment is often needed, which not only consumes a lot of time but also increases the difficulty of construction, seriously affecting the processing progress. In addition, in the face of complex environmental conditions such as high wind load, traditional connection methods cannot provide sufficient wind resistance stability, leading to potential safety hazards of the structure under wind vibration, and the stress concentration problem at the intersection of multiple members cannot be effectively solved, further exacerbating the instability of the structure. Therefore, we propose a connection structure of large cast steel nodes and steel members. SUMMARY
[0003] The main purpose of the utility model is to provide a connection structure of large cast steel nodes and steel members, which can effectively solve the problems in the background art.
[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:
[0005] The connection structure of large cast steel nodes and steel members comprises a cast steel node main body and a steel member main body, the steel member main body is fixedly welded at the lower part of the cast steel node main body, the cast steel node main body comprises a support piece, the front end of the support piece is fixedly welded with a first transition piece, the lower end of the support piece is fixedly welded with a second transition piece, and the rear end of the support piece is fixedly welded with two connecting columns arranged in an up-down manner.
[0006] The support piece comprises a first support rod and a second support rod, the first support rod and the second support rod are the same in structure, the opposite ends of the first support rod and the second support rod are fixedly welded with support columns, the two connecting columns are fixedly connected with the first support rod and the second support rod respectively, and the first transition piece is fixedly welded at the front end of the first support rod.
[0007] Preferably, the left and right ends of the first support rod and the second support rod are respectively provided with a first protrusion and a first groove matched with the first protrusion, and the first protrusions on the first support rod and the second support rod are staggered.
[0008] By adopting the technical scheme, the unique design not only increases the stability of the structure, but also effectively disperses the force from the external load, avoiding local stress concentration problems, especially in complex geometric building structures, the design can significantly improve the wind resistance performance of the overall structure and reduce the risk of structural damage caused by wind load.
[0009] Preferably, the second transition piece includes a V-shaped connecting frame, the V-shaped connecting frame is provided with two and fixedly welded on the left and right sides of the lower end of the first support rod, and the lower end of the V-shaped connecting frame is fixedly welded with three protrusions on the front and back sides.
[0010] Preferably, the first transition piece includes a first extension column, a second extension column and a third extension column, the first extension column, the second extension column and the third extension column are fixedly connected to the front end of the first support rod, and the first extension column and the third extension column are symmetrically distributed on the two sides of the second extension column, and the front end of the first extension column, the second extension column and the third extension column is fixedly welded with a second protrusion.
[0011] By adopting the technical scheme: the first transition piece acts together, so that the entire structure can better transfer and disperse external load, prolong the service life of the structure and improve the safety.
[0012] Preferably, the steel member body includes a steel pipe, the steel pipe is provided with two and symmetrically distributed front and back, the upper end of the two steel pipes is provided with a second groove matched with the third protrusion in the middle, the second groove and the third protrusion are clamped to fixedly connect the steel pipe to the lower end of the V-shaped connecting frame, and the two steel pipes are fixedly connected with a reinforcing plate.
[0013] By adopting the technical scheme: the steel pipe is clamped through the second groove in the middle of the upper end and the third protrusion on the lower end of the V-shaped connecting frame of the second transition piece in the cast steel node body, which realizes preliminary fixation, this clamping method not only is simple to operate, but also ensures the accurate butt joint between the steel pipe and the cast steel node body, reduces the time and difficulty of on-site adjustment; then, further reinforced by welding, ensuring the firmness and stability of the connection.
[0014] Preferably, the outer surfaces of the two steel pipes are fixedly welded with a plurality of connecting blocks at opposite ends at equal distances, the front and back ends of the reinforcing plate are fixedly welded with clamping blocks matched with the connecting blocks, and the two clamping blocks are clamped in the two connecting blocks at the same height respectively to fixedly connect the reinforcing plate between the two steel pipes.
[0015] By adopting the technical scheme: the reinforcing plate installed between the two steel pipes is clamped by the clamping blocks and the connecting blocks, and is welded, further enhancing the rigidity and stability of the overall structure. The whole process not only simplifies the construction steps, but also improves the safety of the structure, making the engineering progress more efficient.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. Through the modular design and the clamping cooperation mode, the construction process is greatly simplified, and the construction efficiency is improved. First, the steel pipe is clamped with the third protruding block at the lower end of the V-shaped connecting frame on the second transition piece in the cast steel node main body through the second groove in the middle of the upper end, realizes the preliminary fixation, this clamping mode not only is easy to operate, but also can ensure the accurate butt joint between the steel pipe and the cast steel node main body, reduces the time and difficulty of on-site adjustment, then, further reinforcement is carried out through welding, and the firmness and stability of connection are ensured. In addition, the reinforcing plate installed between the two steel pipes is clamped through the clamping block and the connecting block and is welded, and the rigidity and stability of the overall structure are further enhanced. The whole process not only simplifies the construction steps, but also improves the safety of the structure, so that the engineering progress is more efficient.
[0018] 2. The first supporting rod and the second supporting rod in the supporting piece are connected through the supporting column, and the opposite ends are provided with staggered distribution first protruding blocks and first grooves, this unique design not only increases the stability of the structure, but also effectively disperses the force from the external load, avoids the problem of local stress concentration, especially in the complex geometric shape building structure, this design can significantly improve the wind resistance of the overall structure, reduces the risk of structural damage caused by wind load. In addition, the first transition piece fixedly welded at the front end of the first supporting rod comprises a first extending column, a second extending column and a third extending column, and the connection strength and stability are further enhanced through the second protruding block. The joint action of these designs makes the whole structure better transmit and disperse external load, prolongs the service life of the structure and improves the safety. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the whole structure schematic view of the connecting structure of the large cast steel node and steel member of the utility model;
[0020] Figure 2 It is the component structure schematic view of the connecting structure of the large cast steel node and steel member of the utility model;
[0021] Figure 3 It is the structure schematic view of the cast steel node main body of the connecting structure of the large cast steel node and steel member of the utility model;
[0022] Figure 4 It is the structure schematic view of the steel member main body of the connecting structure of the large cast steel node and steel member of the utility model.
[0023] In the figure: 1, cast steel node main body; 2, steel component main body; 21, steel pipe; 22, No. 2 groove; 23, reinforcing plate; 24, connecting block; 25, clamping block; 3, support; 31, No. 1 support rod; 32, No. 2 support rod; 33, support column; 34, No. 1 protruding block; 35, No. 1 groove; 4, No. 1 transition piece; 41, first extension column; 42, second extension column; 43, third extension column; 44, No. 2 protruding block; 5, No. 2 transition piece; 51, V-shaped connecting frame; 52, No. 3 protruding block; 6, connecting column. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0025] In the description of the utility model, it should be pointed out that the directions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] Please refer to Figures 1-4 The utility model provides a technical scheme:
[0028] The connecting structure of large cast steel node and steel component, including cast steel node main body 1 and steel component main body 2, steel component main body 2 is fixedly welded in the lower part of cast steel node main body 1;Cast steel node main body 1 includes support 3, the front end of support 3 is fixedly welded with No. 1 transition piece 4, the lower end of support 3 is fixedly welded with No. 2 transition piece 5, and the rear end of support 3 is fixedly welded with two connecting columns 6 distributed in an up-down manner.
[0029] In this embodiment, the support 3 includes a first support rod 31 and a second support rod 32, which are identical in structure. The opposite ends of the first support rod 31 and the second support rod 32 are fixedly welded with support columns 33. Two connecting columns 6 are fixedly connected with the first support rod 31 and the second support rod 32, respectively. A first transition piece 4 is fixedly welded at the front end of the first support rod 31. The left and right ends of the first support rod 31 and the second support rod 32 are respectively provided with a first protrusion 34 and a first groove 35 matched with the first protrusion 34. The first protrusions 34 on the first support rod 31 and the second support rod 32 are staggered. The second transition piece 5 includes a V-shaped connecting frame 51, which is provided with two V-shaped connecting frames 51 fixedly welded at the left and right sides of the lower end of the first support rod 31. The lower end of the V-shaped connecting frame 51 is fixedly welded with a third protrusion 52 on the front and back sides. The first transition piece 4 includes a first extension column 41, a second extension column 42 and a third extension column 43, which are all fixedly connected with the front end of the first support rod 31. The first extension column 41 and the third extension column 43 are symmetrically distributed on the two sides of the second extension column 42. The front ends of the first extension column 41, the second extension column 42 and the third extension column 43 are fixedly welded with a second protrusion 44.
[0030] Through the above scheme: the first support rod 31 and the second support rod 32 of the support 3 are connected through the support column 33, and staggered first protrusions 34 and first grooves 35 are arranged at the opposite ends. This unique design not only increases the stability of the structure, but also effectively disperses the force from external loads, avoiding local stress concentration problems. Especially in complex geometric building structures, this design can significantly improve the wind resistance of the overall structure and reduce the risk of structural damage caused by wind load. In addition, the first transition piece 4 fixedly welded at the front end of the first support rod 31 includes a first extension column 41, a second extension column 42 and a third extension column 43, and the connection strength and stability are further enhanced through the second protrusion 44. These designs work together to make the entire structure better transmit and disperse external loads, prolong the service life of the structure and improve safety.
[0031] In the embodiment, the steel member body 2 comprises two steel pipes 21 which are symmetrically distributed front and back. The upper middle part of each steel pipe 21 is provided with a second recess 22 which is matched with the third protrusion 52. The second recess 22 and the third protrusion 52 are clamped to fix and connect the steel pipe 21 to the lower end of the V-shaped connecting frame 51 of the cast steel node body 1. The two steel pipes 21 are fixedly connected with a reinforcing plate 23. The opposite ends of the outer surface of each steel pipe 21 are fixedly welded with a plurality of connecting blocks 24. The front and rear ends of the reinforcing plate 23 are fixedly welded with clamping blocks 25 which are matched with the connecting blocks 24. The two clamping blocks 25 are clamped in the two connecting blocks 24 at the same height to fix and connect the reinforcing plate 23 between the two steel pipes 21.
[0032] Through the above scheme: the steel pipe 21 is clamped with the third protrusion 52 at the lower end of the V-shaped connecting frame 51 on the second transition piece 5 in the cast steel node body 1 through the second recess 22 at the upper middle part thereof, so as to be preliminarily fixed. This clamping mode is not only simple in operation, but also can ensure the accurate butt joint between the steel pipe 21 and the cast steel node body 1, so as to reduce the time and difficulty of on-site adjustment. Then, the connection is further reinforced by welding, so as to ensure the firmness and stability of the connection. In addition, the reinforcing plate 23 installed between the two steel pipes 21 is clamped with the connecting blocks 24 through the clamping blocks 25 and is welded, so as to further enhance the rigidity and stability of the overall structure. The whole process not only simplifies the construction steps, but also improves the safety of the structure, so that the engineering progress is more efficient.
[0033] It needs to be explained that the utility model discloses a connecting structure of large-scale cast steel node and steel member, in the use process, first, two steel pipes 21 are connected with the third protruding block 52 of the lower end of the V-shaped connecting frame 51 on the cast second transition piece 5 through the second recess 22 in the middle of the upper end and are connected with the cast steel node main body 1 in the steel member main body 2, and then the contact surface of the steel pipe 21 and the V-shaped connecting frame 51 is welded, and the reinforcement and fixation between the steel member main body 2 and the cast steel node main body 1 are completed, then the reinforcing plate 23 is installed between the two steel pipes 21, the clamping block 25 at the front and back ends of the reinforcing plate 23 is clamped in the two connecting blocks 24 of the same height respectively, and then the contact surface of the reinforcing plate 23 and the connecting block 24 is welded to ensure that the reinforcing plate 23 is fixed firmly between the two steel pipes 21, which simplifies the construction process and further enhances the stability and rigidity of the whole structure, and then according to actual use demand, the first support rod 31 and the second support rod 32 on one cast steel node main body 1 are fixedly connected with the first support rod 31 and the second support rod 32 on another cast steel node main body 1 by the clamping cooperation of the first protruding block 34 and the first recess 35, and finally the welding is used to strengthen the stability effect, since the first end of the first support rod 31 is fixedly welded with the first transition piece 4, the first transition piece 4 comprises a first extension column 41, a second extension column 42 and a third extension column 43, the extension columns are fixedly welded at the first end of the first support rod 31 and are provided with a second protruding block 44, so that the first transition piece 4 can better transmit and disperse the force from external load, the lower end of the support 3 is fixedly welded with the second transition piece 5, and the rear end is fixedly welded with two connecting columns 6 distributed upward and downward. The connecting columns 6 are connected with the first support rod 31 and the second support rod 32, so that the support 3 plays an effective supporting and connecting role in the whole structure.
[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A connection structure between large cast steel nodes and steel components, characterized in that: It includes a cast steel node body (1) and a steel component body (2), wherein the steel component body (2) is fixedly welded to the lower part of the cast steel node body (1); the cast steel node body (1) includes a support member (3), wherein a first transition member (4) is fixedly welded to the front end of the support member (3), a second transition member (5) is fixedly welded to the lower end of the support member (3), and two connecting columns (6) distributed vertically are fixedly welded to the rear end of the support member (3); The support member (3) includes a first support rod (31) and a second support rod (32). The first support rod (31) and the second support rod (32) have the same structure. Support columns (33) are fixedly welded to the opposite ends of the first support rod (31) and the second support rod (32). The two connecting columns (6) are fixedly connected to the first support rod (31) and the second support rod (32) respectively. The first transition member (4) is fixedly welded to the front end of the first support rod (31).
2. The connection structure between large cast steel nodes and steel components according to claim 1, characterized in that: The first support rod (31) and the second support rod (32) are respectively provided with a first protrusion (34) and a first groove (35) that matches the first protrusion (34). The first protrusion (34) on the first support rod (31) and the first protrusion (34) on the second support rod (32) are staggered.
3. The connection structure between large cast steel nodes and steel components according to claim 1, characterized in that: The second transition component (5) includes a V-shaped connecting frame (51). Two V-shaped connecting frames (51) are provided and fixedly welded to the lower left and right sides of the first support rod (31). The lower front and rear sides of the V-shaped connecting frame (51) are fixedly welded with the third protrusion (52).
4. The connection structure between large cast steel nodes and steel components according to claim 1, characterized in that: The first transition component (4) includes a first extension post (41), a second extension post (42) and a third extension post (43). The first extension post (41), the second extension post (42) and the third extension post (43) are all fixedly connected to the front end of the first support rod (31). The first extension post (41) and the third extension post (43) are symmetrically distributed on both sides of the second extension post (42). The front ends of the first extension post (41), the second extension post (42) and the third extension post (43) are all fixedly welded with a second protrusion (44).
5. The connection structure between large cast steel nodes and steel components according to claim 1, characterized in that: The main body (2) of the steel component includes a steel pipe (21). There are two steel pipes (21) and they are symmetrically distributed front and back. The upper middle part of the two steel pipes (21) is provided with a second groove (22) that matches the third protrusion (52). The second groove (22) and the third protrusion (52) are engaged to fix the steel pipe (21) to the lower end of the V-shaped connecting frame (51). A reinforcing plate (23) is fixedly connected between the two steel pipes (21).
6. The connection structure between the large cast steel node and the steel component according to claim 5, characterized in that: Multiple connecting blocks (24) are fixedly welded at equal distances to the opposite ends of the two steel pipes (21). The front and rear ends of the reinforcing plate (23) are fixedly welded with locking blocks (25) that are compatible with the connecting blocks (24). The two locking blocks (25) are respectively locked into the two connecting blocks (24) at the same height to fix the reinforcing plate (23) between the two steel pipes (21).