Combined reinforced curved steel beam

Abstract

The utility model discloses a combined type reinforced arc steel beam belongs to steel beam structure technical field, the utility model discloses a plurality of arc steel beam body, a plurality of intermediate connecting pieces and two arch feet, a plurality of intermediate connecting pieces are located between every two steel beam body respectively, through the combination design of a plurality of steel beam body, intermediate connecting piece and arch foot, the modular assembly of arc steel beam has been realized, convenient transportation, installation and post -maintenance, thereby has solved the problem that overall arc steel beam size is big, transportation is difficult, utilizes the clamping cooperation of connecting groove and connecting block, and the fastening of high -strength bolt to first fixed hole and second fixed hole is combined, has guaranteed the stability and reliability of the connection between steel beam body, between steel beam body and arch foot, avoids slack, then through the clamping of arc reinforcing groove and arc reinforcing strip, the shear -resistant, torsional rigidity of connecting part is strengthened pertinently, adapts the stress characteristic of arc structure, has promoted the bearing strength of overall structure.

Description

Technical Field

[0001] This utility model belongs to the field of steel beam structure technology, specifically a combined reinforced arc-shaped steel beam. Background Technology

[0002] In the field of construction engineering, curved steel beams are widely used in large buildings such as stadiums, exhibition halls, and bridges because they can effectively distribute loads and adapt to the needs of large-span structures. However, traditional curved steel beams are mostly monolithic structures, which have many limitations in their manufacturing and use. From a transportation perspective, integral curved steel beams often have large dimensions and weights, far exceeding the load-bearing and passage limits of conventional transportation vehicles. This not only results in high transportation costs but also makes them prone to structural deformation or damage during transportation due to collisions and vibrations, affecting subsequent installation accuracy and performance. During the installation process, the hoisting and positioning of the integral curved steel beam is extremely difficult, requiring the assistance of large lifting equipment. It also places stringent requirements on the space and load-bearing capacity of the installation site. Especially in complex terrain or confined spaces, the installation efficiency is low and the safety risks are relatively high. Furthermore, the traditional connection structure design of curved steel beams is not reasonable enough. During long-term use, the connection points are prone to loosening and deformation due to repeated loads and temperature changes, leading to a decrease in the overall structural stability and load-bearing capacity. At the same time, the inherent stress characteristics of curved structures mean that their connection points must withstand a large radial force, which ordinary connection methods cannot effectively resist, easily causing structural defects and shortening the service life.

[0003] Therefore, a combined reinforced arc-shaped steel beam is needed to solve this problem. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a combined reinforced arc-shaped steel beam, which has the advantages of easy transportation and installation, stable and reliable connection, and adaptability to the stress characteristics of arc-shaped structures. It solves the problems of high transportation cost, easy damage, difficult installation, low efficiency, and high safety risks of traditional integral arc-shaped steel beams, as well as the problems of easy loosening and deformation of connection parts, difficulty in resisting radial force, and short service life caused by unreasonable connection structure design.

[0005] This utility model provides the following technical solution: a combined reinforced arc-shaped steel beam, comprising multiple arc-shaped steel beam bodies, multiple intermediate connectors, and two arched feet. The multiple intermediate connectors are respectively located between every two steel beam bodies. The top and bottom of each steel beam body are respectively fixedly connected to an upper flange plate and a lower flange plate. The top of the arched feet is provided with an installation groove. The two ends of each steel beam body are symmetrically provided with connecting grooves. Connecting blocks are fixedly connected to both sides of the intermediate connectors and the bottom of the installation grooves, and the connecting blocks are engaged with the connecting grooves. The surface of each connecting block is symmetrically provided with a first fixing hole. The two ends of each steel beam body are symmetrically provided with a second fixing hole. High-strength bolts are threaded into both the second fixing hole and the first fixing hole. Arc-shaped reinforcing grooves are symmetrically provided at both ends of the steel beam body. Arc-shaped reinforcing strips are symmetrically fixedly connected to both sides of the intermediate connectors, and the arc-shaped reinforcing strips are engaged with the arc-shaped reinforcing grooves.

[0006] The beneficial effects of this utility model are as follows: 1. This utility model achieves modular assembly of arc-shaped steel beams through the combined design of multiple steel beams, intermediate connecting parts, and arch feet, which facilitates transportation, installation, and subsequent maintenance. This solves the problem of large overall size and difficult transportation of arc-shaped steel beams. By using the snap-fit ​​cooperation between the connecting groove and the connecting block, combined with the fastening of the first and second fixing holes with high-strength bolts, the stability and reliability of the connection between the steel beams and between the steel beams and the arch feet are ensured, preventing loosening. Then, through the snap-fit ​​of the arc-shaped reinforcing groove and the arc-shaped reinforcing strip, the shear and torsional resistance of the connection parts are specifically enhanced, adapting to the stress characteristics of the arc structure and improving the overall load-bearing strength of the structure.

[0007] 2. This utility model adds lateral positioning and force-bearing points to the connection block and the connection groove by interlocking rectangular blocks and rectangular grooves, which effectively prevents relative rotation or offset between steel beams and between steel beams and arch feet, and enhances the overall integrity of the connection. Then, through the cooperation of through holes and high-strength bolts, the bolt tightening force is distributed more evenly, which further improves the fatigue resistance of the connection parts and extends the service life of the structure. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial three-dimensional cross-sectional view of the steel beam, intermediate connector, and arch foot used in conjunction with the present invention. Figure 3 This is a three-dimensional schematic diagram of the steel beam body of this utility model; Figure 4 This is a top-view perspective view of the arch foot of this utility model; Figure 5 This is a three-dimensional schematic diagram of the intermediate connecting component of this utility model; Figure 6 This is a top-view perspective view of the intermediate connecting component of this utility model. Detailed Implementation

[0009] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0010] like Figures 1 to 6 As shown, the combined reinforced arc-shaped steel beam of this embodiment includes multiple arc-shaped steel beam bodies 1, multiple intermediate connectors 2, and two arch feet 3. The multiple intermediate connectors 2 are located between every two steel beam bodies 1. The top and bottom of the steel beam body 1 are respectively fixedly connected to an upper flange plate 4 and a lower flange plate 5. The top of the arch foot 3 is provided with an installation groove 6. The two ends of the steel beam body 1 are symmetrically provided with connecting grooves 7. Both sides of the intermediate connectors 2 and the bottom of the installation grooves 6 are fixedly connected with connecting blocks 8, and the connecting blocks 8 are engaged with the connecting grooves 7. The surface of the connecting blocks 8 is symmetrically provided with first fixing holes 9. The two ends of the steel beam body 1 are symmetrically provided with second fixing holes 10. The interiors of the second fixing holes 10 and the first fixing holes 9 are both threaded with high-strength bolts 11. The two ends of the steel beam body 1 are symmetrically provided with arc-shaped reinforcing grooves 12. The two sides of the intermediate connectors 2 are symmetrically fixedly connected with arc-shaped reinforcing strips 13, and the arc-shaped reinforcing strips 13 are engaged with the arc-shaped reinforcing grooves 12.

[0011] refer to Figure 3 , Figure 4 and Figure 5 The steel beam body 1 has rectangular grooves 14 symmetrically opened on both sides. Rectangular blocks 15 are symmetrically fixedly connected to both sides of the surface of the middle connector 2 and the bottom of the mounting groove 6. The rectangular blocks 15 are snapped into the rectangular grooves 14. The surface of the rectangular blocks 15 has through holes 16, and the through holes 16 are used in conjunction with high-strength bolts 11.

[0012] In this embodiment, the rectangular block 15 and the rectangular groove 14 are engaged to add lateral positioning and stress points on the basis of the connecting block 8 and the connecting groove 7. This effectively prevents relative rotation or offset between the steel beams 1 and between the steel beams 1 and the arch foot 3, thus enhancing the overall integrity of the connection. Then, by using the cooperation of the through hole 16 and the high-strength bolt 11, the fastening force of the high-strength bolt 11 is distributed more evenly, further improving the fatigue resistance of the connection and extending the service life of the structure.

[0013] refer to Figure 3 M-shaped reinforcing ribs 17 are fixedly connected to both the front and back of the steel beam body 1, and the two ends of the reinforcing ribs 17 are fixedly connected to the upper flange plate 4 and the lower flange plate 5 respectively.

[0014] In this embodiment, the stress generated by the load is dispersed by the M-shaped structure through multiple broken lines, which can effectively enhance the bending stiffness of the steel beam 1 and reduce the bending deformation of the steel beam 1 under load. Then, the two ends of the reinforcing rib 17 are fixed to the upper flange plate 4 and the lower flange plate 5, connecting the flange plate and the steel beam 1 into a whole, avoiding the separation between the upper flange plate 4, the lower flange plate 5 and the steel beam 1 due to stress, and improving the auxiliary bearing capacity of the upper flange plate 4 and the lower flange plate 5 for the steel beam 1.

[0015] refer to Figure 3 The bottom of the reinforcing rib 17 is symmetrically provided with triangular rubber blocks 18, and the triangular rubber blocks 18 are fixedly connected to the steel beam body 1.

[0016] In this embodiment, the triangular structure itself has stability, and the triangular rubber block 18 can buffer the impact of vibration loads (such as wind and earthquake) on the connection between the reinforcing rib 17 and the steel beam 1, reduce stress concentration, and prevent the connection point between the reinforcing rib 17 and the steel beam 1 from being damaged by long-term vibration fatigue. The elastic properties of the triangular rubber block 18 can also absorb some vibration energy and improve the vibration reduction performance of the structure.

[0017] refer to Figure 1 and Figure 3 The inner sides of the upper flange plate 4 and the lower flange plate 5 are fixedly connected with longitudinal reinforcing strips 19, and the longitudinal reinforcing strips 19 are arranged along the length direction of the steel beam body 1.

[0018] In this embodiment, the longitudinal stiffening strip 19 is set along the length of the arc-shaped steel beam, which can effectively enhance the buckling resistance of the upper flange plate 4 and the lower flange plate 5 (the flange plate is prone to local instability when subjected to axial force), prevent the flange plate from exhibiting wavy deformation when subjected to force, improve the overall stiffness of the flange plate, and enable it to transfer the load to the steel beam body 1 more evenly, thereby further enhancing the load-bearing capacity of the structure.

[0019] refer to Figure 2 and Figure 3 The surface of the steel beam 1 is provided with multiple hexagonal damping holes 20, and damping columns 21 are fixedly connected inside the damping holes 20.

[0020] In this embodiment, the hexagonal structure has strong mechanical stability. The damping holes 20 can reduce the self-weight of the steel beam 1 while avoiding excessive impact on the overall strength (compared to circular holes). The stress distribution around the hexagonal holes is more uniform. The damping columns 21 can absorb vibration energy, reduce vibration damage to the steel beam 1, and improve the structure's seismic and wind vibration resistance.

[0021] refer to Figure 3 and Figure 6The two ends of the steel beam 1 are fixedly connected with four symmetrical anti-mistake columns 22. The surfaces of both ends of the intermediate connector 2 and the bottom of the mounting groove 6 are provided with four anti-mistake grooves 23 that correspond to the anti-mistake columns 22, and the anti-mistake grooves 23 are engaged with the anti-mistake columns 22.

[0022] This embodiment uses a foolproof structure to quickly position the components during installation, preventing the steel beam 1 from being installed backwards or misaligned due to incorrect orientation of the intermediate connecting piece 2 or the arch foot 3. This improves installation efficiency, reduces assembly errors, ensures the accuracy of the connections between components, and indirectly guarantees the stress stability of the overall structure.

[0023] refer to Figure 1 The surfaces of the steel beam 1, intermediate connector 2, and arch foot 3 are all coated with epoxy resin.

[0024] In this embodiment, the epoxy resin coating has excellent corrosion resistance, wear resistance and weather resistance, which can effectively isolate the steel beam 1, intermediate connecting parts 2 and arch feet 3 from the external environment (such as moisture, acid and alkali media, ultraviolet rays), prevent rust or aging, extend the service life of the structure and reduce the later maintenance cost.

[0025] First, prepare multiple arc-shaped steel beams 1, multiple intermediate connectors 2, and two arched feet 3. Ensure that the epoxy resin coating on the surface of each component is intact. Check that the upper flange plate 4 and lower flange plate 5, which are fixedly connected to the top and bottom of the steel beam 1, and the longitudinal reinforcing strips 19 on their inner sides are undamaged. At the same time, confirm that the M-shaped reinforcing ribs 17, which are fixedly connected to the front and back of the steel beam 1, the triangular rubber blocks 18, which are symmetrically arranged at the bottom and fixedly connected to the steel beam 1, and the shock-absorbing columns 21, which are fixedly connected inside the multiple hexagonal shock-absorbing holes 20 opened on the surface of the steel beam 1, are all intact. Next, align one end of the first steel beam 1 with the mounting groove 6 of one of the arch feet 3, so that the connecting grooves 7 at both ends of the steel beam 1 are engaged with the connecting blocks 8 that are fixedly connected to the bottom of the mounting groove 6. At the same time, engage the four symmetrical anti-foolproof posts 22 at both ends of the steel beam 1 with the four anti-foolproof grooves 23 opened at the bottom of the mounting groove 6, and engage the rectangular grooves 14 on both sides of the steel beam 1 with the rectangular blocks 15 that are symmetrically fixed at the bottom of the mounting groove 6. Then, pass the high-strength bolts 11 through the first fixing holes 9 symmetrically opened on the surface of the connecting blocks 8 and the second fixing holes 10 symmetrically opened at both ends of the steel beam 1. The steel beam 1 is then threaded through the through hole 16 on the surface of the rectangular block 15 to secure it, thus completing the connection between the first steel beam 1 and the arch foot 3. Next, an intermediate connector 2 is taken, and its connecting block 8 on one side is engaged with the connecting groove 7 at the other end of the installed steel beam 1. The arc-shaped reinforcing strip 13 on one side of the intermediate connector 2 is engaged with the arc-shaped reinforcing groove 12 at the other end of the steel beam 1. The rectangular blocks 15 on both sides of the surface of the intermediate connector 2 are engaged with the rectangular grooves 14 on both sides of the other end of the steel beam 1. The four anti-fooling grooves 23 on one end of the intermediate connector 2 are engaged with the other end of the steel beam 1. The anti-fouling post 22 at the end is snapped in place, and then high-strength bolts 11 are used to fasten it through the first fixing hole 9, the second fixing hole 10 and the through hole 16. Then, one end of the next steel beam 1 is connected to the other side of the intermediate connector 2 in the same snapping and bolting manner as described above. This step is repeated until all steel beams 1 are connected in sequence through the intermediate connector 2. Finally, the other end of the last steel beam 1 is installed and fixed to another arch foot 3 in the same way as the first steel beam 1 and arch foot 3, thus completing the assembly of the entire combined reinforced arc steel beam.

Claims

1. A composite reinforced arc-shaped steel beam, characterized in that: The combined reinforced arc-shaped steel beam includes multiple arc-shaped steel beam bodies (1), multiple intermediate connectors (2), and two arch feet (3). The multiple intermediate connectors (2) are located between every two steel beam bodies (1). The top and bottom of each steel beam body (1) are fixedly connected to an upper flange plate (4) and a lower flange plate (5), respectively. The top of each arch foot (3) is provided with an installation groove (6). The two ends of each steel beam body (1) are symmetrically provided with connecting grooves (7). Connecting blocks are fixedly connected to both sides of the intermediate connectors (2) and the bottom of the installation grooves (6). 8), and the connecting block (8) is engaged with the connecting groove (7). The surface of the connecting block (8) is symmetrically provided with a first fixing hole (9). The two ends of the steel beam (1) are symmetrically provided with a second fixing hole (10). The interior of the second fixing hole (10) and the first fixing hole (9) are threaded with high-strength bolts (11). The two ends of the steel beam (1) are symmetrically provided with arc-shaped reinforcing grooves (12). The two sides of the intermediate connecting piece (2) are symmetrically fixed with arc-shaped reinforcing strips (13), and the arc-shaped reinforcing strips (13) are engaged with the arc-shaped reinforcing grooves (12).

2. The composite reinforced arc-shaped steel beam according to claim 1, characterized in that: The steel beam (1) has rectangular grooves (14) symmetrically opened on both sides. The two sides of the surface of the intermediate connector (2) and the bottom of the mounting groove (6) are symmetrically fixedly connected with rectangular blocks (15), and the rectangular blocks (15) are snapped into the rectangular grooves (14). The surface of the rectangular blocks (15) has through holes (16), and the through holes (16) are used in conjunction with high-strength bolts (11).

3. The combined reinforced arc-shaped steel beam according to claim 2, characterized in that: The front and back sides of the steel beam body (1) are fixedly connected with M-shaped reinforcing ribs (17), and the two ends of the reinforcing ribs (17) are fixedly connected to the upper flange plate (4) and the lower flange plate (5) respectively.

4. The combined reinforced arc-shaped steel beam according to claim 3, characterized in that: The bottom of the reinforcing rib (17) is symmetrically provided with triangular rubber blocks (18), and the triangular rubber blocks (18) are fixedly connected to the steel beam body (1).

5. A combined reinforced arc-shaped steel beam according to claim 4, characterized in that: The inner sides of the upper flange plate (4) and the lower flange plate (5) are fixedly connected with longitudinal reinforcing strips (19), and the longitudinal reinforcing strips (19) are arranged along the length direction of the steel beam body (1).

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