Peripheral supporting type arc-shaped steel structure
By employing a four-sided support design and waterproof protection measures, the problems of stress concentration and bolt corrosion in the curved steel structure were solved, achieving structural stability and waterproofing, and improving service life and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU JINCHANGLI STEEL STRUCTURE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional curved steel structure support methods are prone to stress concentration and structural instability when subjected to large loads, and the bolted connections lack waterproof protection and are prone to corrosion, affecting service life and stability.
It adopts a four-sided support design, uses waterproof sleeves and sealing rings to protect the bolt connection parts, and enhances structural stability through positioning grooves and crossbeams. Combined with detachable connection and sealing groove design, it achieves all-round waterproof protection and precise positioning.
It effectively prevents rainwater penetration, avoids bolt corrosion, enhances structural stability, extends service life, and facilitates later maintenance and component replacement, reducing maintenance costs.
Smart Images

Figure CN224200039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure technology, and more specifically, to a four-sided supported arc-shaped steel structure. Background Technology
[0002] In modern architecture and engineering, curved steel structures are widely used in landmark buildings such as large stadiums, convention centers, and transportation hubs due to their beautiful shapes, excellent spatial mechanical properties, and strong visual appeal. Traditional curved steel structures often employ single-point or double-sided bracing methods. While these bracing structures meet the load-bearing requirements of curved steel structures to some extent, significant technical bottlenecks remain. Single-point bracing of curved steel structures is prone to stress concentration at the support point under heavy loads, leading to localized deformation or even structural failure. Double-sided bracing is less effective at handling complex wind loads and seismic forces, resulting in poor overall structural stability and limitations in space utilization, failing to fully leverage the spatial advantages of curved steel structures. With the continuous expansion of building scale and increasingly stringent structural performance requirements, traditional bracing methods are no longer sufficient to meet the safety, stability, and functionality demands of curved steel structures in engineering practice.
[0003] Utility model patent CN217053737U discloses a four-sided supported arc-shaped steel structure, including mounting rods, a steel frame, and a support device. There are six mounting rods, with the steel frame positioned above them. The support device is mounted on the surface of the mounting rods and includes a mounting ring and three support rods. The mounting ring is fixedly connected to the surface of the mounting rods. Three support rods are positioned on one side of the mounting ring, with a mounting block fixedly connected to one side of each support rod. The surface of the mounting ring has three grooves, with the mounting block engaging with these grooves. Two fixing rods are fixedly connected to the inner wall of each groove on the mounting ring surface. The surface of the mounting block has two circular holes, with the fixing rods engaging with these holes. This utility model, by incorporating a support device, facilitates the reinforcement and support of equipment, effectively reducing the likelihood of deformation and damage at the support points, mitigating poor support performance, and ultimately improving the overall stability of the equipment.
[0004] While this technical solution improves the overall stability of the equipment, most current curved steel structures are fixed to their supporting components using bolts. These connections lack waterproof protection, meaning that when exposed to outdoor conditions or exposed to rain, water can seep into the bolted joints, causing corrosion and affecting service life and structural stability. Therefore, we propose a four-sided supported curved steel structure. Utility Model Content
[0005] The purpose of this invention is to provide a four-sided supported arc-shaped steel structure to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] The structure is a four-sided supported arc-shaped steel structure, comprising multiple arc-shaped steel frames. Multiple longitudinal beams are fixedly installed on the top of each steel frame. Support rods are fixedly installed on the bottom surfaces of the end plates of each steel frame at corresponding locations. Support seats are fixedly installed at the bottom of each support rod. A column is provided at the bottom of each support seat, and a fixed seat is fixedly installed at the top of each column. The support seat and the fixed seat are detachably connected. A fixed base is fixedly installed at the bottom of each column, and the fixed base is fixedly installed on an external base. A waterproof sleeve is slidably connected to the support rod and fitted onto the fixed seat and the support seat. The waterproof sleeve is used for waterproof protection. A crossbeam can also be detachably installed between two symmetrical columns on the left and right sides.
[0008] Preferably, a positioning groove is provided in the bottom surface of the support base, and the fixing base is located in the positioning groove and is inserted into the positioning groove;
[0009] This setting enables positioning and assembly of the mounting base, making the positioning and assembly process smoother.
[0010] Preferably, the support base and the fixed base are detachably connected by a plurality of fastening bolts, and the waterproof sleeve protects the bolt connection between the support base and the fixed base inside.
[0011] Preferably, a limiting ring is fixedly installed on the top surface of the support base. The limiting ring is sleeved on the outside of the support rod. An annular groove is provided inside the limiting ring, and a sealing ring is embedded in the annular groove.
[0012] Preferably, the size of the sealing ring is adapted to the size of the annular groove, a crack is provided on the annular side of the sealing ring, and the waterproof sleeve abuts against the top surface of the sealing ring;
[0013] The above two features can further improve the waterproof sealing effect by using a sealing ring, and the sealing ring can be removed and replaced.
[0014] Preferably, a sealing groove is provided at the center of the top surface of the waterproof sleeve, and the sealing groove is sealed with the support rod by waterproof adhesive;
[0015] Preferably, the bottom wall of the sealing groove is provided with a plurality of through holes, the lower projection of the through holes being located inside the lower projection of the sealing ring, and the through holes being used for waterproof adhesive to adhere to the sealing ring;
[0016] The above two settings can improve the sealing effect.
[0017] Preferably, a side support is fixedly installed on the side of the column, and an end support is fixedly installed at both ends of the crossbeam. The end supports and the side supports are detachably connected by fastening bolts.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. This utility model protects the bolt connection between the support base and the fixed base inside by setting a waterproof sleeve, and uses waterproof glue to seal between the sealing groove and the support rod. At the same time, the waterproof glue is adhered to the sealing ring through the through hole, which realizes all-round waterproof protection for the bolt connection between the steel structure and the support component, effectively preventing rainwater penetration, avoiding corrosion of the bolt connection, and extending the service life of the product.
[0020] 2. This utility model achieves precise positioning and assembly of the steel structure and structural reinforcement by setting a positioning groove on the bottom surface of the support base and inserting it into the fixed base, and by detachably installing a crossbeam between the left and right symmetrical columns, thereby enhancing the overall structural stability and effectively coping with complex load conditions.
[0021] 3. This utility model achieves flexible maintenance and improvement of the waterproof sealing effect of the connection part by embedding a removable and replaceable sealing ring in the annular groove inside the limiting ring and making the waterproof sleeve abut against the top surface of the sealing ring. It achieves the effect of ensuring sealing performance while facilitating later inspection and component replacement and reducing maintenance costs. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0024] Figure 3 This is a partial structural schematic diagram of the present invention;
[0025] Figure 4 This is a schematic diagram of the sealing ring of this utility model;
[0026] The meanings of the labels in the diagram are as follows:
[0027] 1. Steel frame; 10. Longitudinal beam; 11. Support rod; 12. Support base; 121. Positioning groove; 13. Limiting ring; 131. Annular groove; 14. Sealing ring; 141. Crack; 15. Waterproof sleeve; 151. Sealing groove; 152. Through hole;
[0028] 2. Column; 20. Fixing seat; 21. Fixing base; 22. Side support; 23. Crossbeam; 24. End support. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-4 This utility model provides a technical solution: a four-sided supported arc-shaped steel structure, including multiple longitudinally arranged arc-shaped steel frames 1. Multiple longitudinal beams 10 are fixedly installed on the top of the multiple steel frames 1. The longitudinal beams 10 are perpendicular to the steel frames 1. Support rods 11 are fixedly installed on the bottom surface of the plates at both ends of the steel frames 1 at corresponding positions. Support seats 12 are fixedly installed at the bottom end of the support rods 11. A column 2 is provided at the bottom of the support seat 12. A fixing seat 20 is fixedly installed at the top end of the column 2. The support seat 12 and the fixing seat 20 are detachably connected. Specifically, the support seat 12 and the fixing seat 20 are detachably connected by multiple fastening bolts, which facilitates fixed installation and disassembly operations.
[0031] In this embodiment, a fixed base 21 is fixedly installed at the bottom of the column 2. The fixed base 21 is fixedly installed on the external base by fastening bolts, which plays a role in stable support. A waterproof sleeve 15 is slidably connected on the support rod 11, which is sleeved on the fixed base 20 and the support base 12. The waterproof sleeve 15 is used for waterproof protection. The waterproof sleeve 15 protects the bolt connection between the support base 12 and the fixed base 20 inside, which plays a role in waterproof protection of the bolt connection.
[0032] like Figure 2 As shown, a positioning groove 121 is provided in the bottom surface of the support base 12, and the fixed base 20 is located in the positioning groove 121 and is inserted and engaged with the positioning groove 121. During the assembly process, the fixed base 20 plays a positioning and guiding role, which simplifies the installation process and makes the positioning and assembly of the support base 12 and the fixed base 20 smoother and more accurate, thereby improving the construction efficiency.
[0033] It is worth noting that a limiting ring 13 is fixedly installed on the top surface of the support base 12. The limiting ring 13 is sleeved on the outside of the support rod 11. An annular groove 131 is provided inside the limiting ring 13, and a sealing ring 14 is embedded in the annular groove 131. The size of the sealing ring 14 is adapted to the size of the annular groove 131. A waterproof sleeve 15 abuts against the top surface of the sealing ring 14. A sealing groove 151 is provided at the center of the top surface of the waterproof sleeve 15. The sealing groove 151 and the support rod 11 are sealed with waterproof adhesive. Multiple through holes 152 are provided on the bottom wall of the sealing groove 151. The lower projection of the through holes 152 is located inside the lower projection of the sealing ring 14. The through holes 152 are used for the waterproof adhesive to stick to the sealing ring 14, so that the bolt connection between the steel structure and the support is fully protected, effectively preventing rainwater from penetrating to the connection, avoiding bolt corrosion, and thus extending the service life of the steel structure.
[0034] It is worth noting that a crack 141 is provided on the annular side of the sealing ring 14. The design of the crack 141 facilitates the installation, removal and replacement of the sealing ring 14, makes it convenient to maintain the sealing components, and ensures the durability of the waterproof performance. Specifically, the two ends of the sealing ring 14 can be opened along the crack 141 to allow the sealing ring 14 to be fitted onto the support rod 11 or removed from the support rod 11.
[0035] In addition, a crossbeam 23 can be detachably installed between the two symmetrical columns 2 to ensure that the structure between the two columns 2 is more robust and stable; a side support 22 is fixedly installed on the side of the column 2, and an end support 24 is fixedly installed at both ends of the crossbeam 23. The end support 24 and the side support 22 are detachably connected by fastening bolts, so that the various components of the entire steel structure are firmly connected and easy to disassemble, which not only enhances the overall structural stability and can effectively cope with complex load conditions, but also facilitates later maintenance and replacement.
[0036] When using the four-sided support type arc-shaped steel structure of this utility model, first install the fixed base 21 on the external base with fastening bolts to complete the stable support of the column 2. Then, insert the fixed base 20 into the positioning groove 121 on the bottom surface of the support base 12 for precise positioning. Then, connect the support base 12 and the fixed base 20 with fastening bolts. At this time, the support rod 11, the support base 12 and the column 2 are initially assembled.
[0037] Next, between the symmetrical columns 2, the crossbeam 23 is installed with fastening bolts through the side supports 22 and the end supports 24 to enhance the overall structural stability.
[0038] Finally, waterproofing is performed. First, the sealing ring 14 is opened along the crack 141, placed on the support rod 11, and embedded in the annular groove 131 of the limiting ring 13. Then, the waterproof sleeve 15 is slid down onto the fixing seat 20 and the support seat 12, so that its top wall abuts against the top surface of the sealing ring 14. Waterproof adhesive is filled into the sealing groove 151, and the waterproof adhesive is adhered to the sealing ring 14 through the through hole 152, thus completing the all-round waterproof sealing.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A four-sided supported arc-shaped steel structure, comprising multiple arc-shaped steel frames (1), characterized in that: Multiple longitudinal beams (10) are fixedly installed on the top of multiple steel frames (1). Support rods (11) are fixedly installed on the bottom surface of the plate at both ends of the steel frame (1) at corresponding locations. Support seats (12) are fixedly installed at the bottom of the support rods (11). Columns (2) are provided at the bottom of the support seats (12). Fixing seats (20) are fixedly installed at the top of the columns (2). The support seats (12) and the fixing seats (20) are detachably connected. Fixing bases (21) are fixedly installed at the bottom of the columns (2). Fixing bases (21) are fixedly installed on the external base. Waterproof sleeves (15) are slidably connected on the support rods (11) and sleeved on the fixing seats (20) and the support seats (12). The waterproof sleeves (15) are used for waterproof protection. Crossbeams (23) can also be detachably installed between two columns (2) that are symmetrical on the left and right.
2. The four-sided supported arc-shaped steel structure according to claim 1, characterized in that: The bottom surface of the support base (12) is provided with a positioning groove (121), and the fixing base (20) is located in the positioning groove (121) and is inserted into the positioning groove (121).
3. The four-sided supported arc-shaped steel structure according to claim 1, characterized in that: The support base (12) and the fixed base (20) are detachably connected by multiple fastening bolts, and the waterproof sleeve (15) protects the bolt connection between the support base (12) and the fixed base (20) inside.
4. The four-sided supported arc-shaped steel structure according to claim 1, characterized in that: A limiting ring (13) is fixedly installed on the top surface of the support base (12). The limiting ring (13) is sleeved on the outside of the support rod (11). An annular groove (131) is provided inside the limiting ring (131), and a sealing ring (14) is embedded in the annular groove (131).
5. The four-sided supported arc-shaped steel structure according to claim 4, characterized in that: The size of the sealing ring (14) is adapted to the size of the annular groove (131), and a crack (141) is provided on the annular side of the sealing ring (14). The waterproof sleeve (15) abuts against the top surface of the sealing ring (14).
6. The four-sided supported arc-shaped steel structure according to claim 5, characterized in that: A sealing groove (151) is provided at the center of the top surface of the waterproof sleeve (15), and the sealing groove (151) is sealed with the support rod (11) by waterproof adhesive.
7. The four-sided supported arc-shaped steel structure according to claim 6, characterized in that: The bottom wall of the sealing groove (151) is provided with a plurality of through holes (152), the lower projection of the through holes (152) is located inside the lower projection of the sealing ring (14), and the through holes (152) are used for waterproof adhesive to be glued to the sealing ring (14).
8. The four-sided supported arc-shaped steel structure according to claim 1, characterized in that: A side support (22) is fixedly installed on the side of the column (2), and an end support (24) is fixedly installed at both ends of the crossbeam (23). The end support (24) and the side support (22) are detachably connected by fastening bolts.
Citation Information
Patent Citations
Peripheral supporting type arc-shaped steel structure
CN217053737U