A C-purlin reinforcement structure
Patent Information
- Application Number
- CN202522157003.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-13
AI Technical Summary
[0006]本实用新型的目的在于提供一种用于C型檩条加固结构，能够解决现有技术中缺乏可靠措施使内衬与檩条的上下翼缘紧密贴合，导致支座处弯矩无法充分传递，加固效果大打折扣的问题
该用于C型檩条加固结构，通过内衬C型钢一、内衬C型钢二、六边形安装孔、螺杆、连接柱、限位板和螺母的配合使用，通过螺母转动调整内衬C型钢的位置，能够精确地控制加固效果，调整的过程简单而快速，避免了复杂的焊接或加固工作，大大降低施工难度，六边形安装孔的孔径与连接柱的直径适配，卡接后可限制连接柱横向偏移，确保螺杆与檩条保持垂直，螺母采用高强度六角螺母，拧紧后可提供稳定预紧力，使内衬C型钢一与内衬C型钢二紧密贴合，避免松动，同时内衬C型钢一和内衬C型钢二能够有效地分担檩条的负载，增加结构的整体强度和刚度，特别是在承受横向或纵向荷载时，能有效防止檩条发生弯曲或变形。
Smart Images
Figure CN224693126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of purlin technology, and in particular to a reinforcement structure for C-shaped purlins. Background Technology
[0002] In large-span roof structures such as industrial plants, warehouses, and large public buildings, purlins, as the core load-bearing components connecting the roof and roof trusses, directly bear multiple forces including the roof's self-weight, snow load, maintenance load, and wind load. Their load-bearing performance and stability directly determine the safe service life of the roof structure. As buildings age, traditional purlins are prone to bending deformation, local buckling, and even breakage due to material aging, increased load, or initial design flaws, requiring reinforcement to restore or enhance their load-bearing capacity. Currently, the mainstream purlin reinforcement solutions in the industry mostly adopt the "internal lining reinforcement" approach—that is, embedding a metal lining inside the original purlin, dispersing stress through the synergistic force distribution between the lining and the purlin.
[0003] After exploration and analysis, the following drawbacks were found in actual use: The lack of reliable measures in the existing technology to ensure that the liner fits tightly with the upper and lower flanges of the purlin results in the inability to fully transfer the bending moment at the support, which greatly reduces the reinforcement effect.
[0004] Conventional reinforcement methods often fail to ensure the inner steel lining is securely fitted to the original C-shaped purlin due to the fixing bolts at the purlin support plate. Furthermore, bolting at the upper flange can easily damage the existing waterproofing. Common reinforcement solutions lack reliable measures to ensure the inner lining is tightly fitted to the upper and lower flanges, thus failing to adequately transfer the bending moment at the support.
[0005] In summary, this application proposes a C-type purlin reinforcement structure to solve the aforementioned problems. Utility Model Content
[0006] The purpose of this utility model is to provide a reinforcement structure for C-type purlins, which can solve the problem in the prior art that there is a lack of reliable measures to ensure that the inner lining is tightly fitted to the upper and lower flanges of the purlin, resulting in the inability to fully transfer the bending moment at the support and a significant reduction in the reinforcement effect.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a C-shaped purlin reinforcement structure, comprising: Purlins, the interior of which is provided with inner C-shaped steel liner one and inner C-shaped steel liner two; The overlapping assembly is set on the inner C-shaped steel liner one and the inner C-shaped steel liner two. The overlapping assembly includes hexagonal mounting holes, screws, connecting columns, limiting plates and nuts. Six sets of hexagonal mounting holes are opened on both the inner C-shaped steel liner one and the inner C-shaped steel liner two and are linearly distributed. The screws are set inside the hexagonal mounting holes. The bottom of the screws is fixedly installed with connecting columns, and the bottom of the connecting columns is fixedly installed with limiting plates.
[0008] Preferably, the overlapping assembly further includes a nut. The top end of the screw passes through the hexagonal mounting holes on the first and second inner C-shaped steel linings in sequence. The connecting post is snapped into the hexagonal mounting hole on the first inner C-shaped steel lining. The top of the limiting plate contacts the bottom of the first inner C-shaped steel lining. The nut is threaded onto the screw. By rotating the nut, the position of the inner C-shaped steel lining can be adjusted, which can precisely control the reinforcement effect. The adjustment process is simple and quick, avoiding complex welding or reinforcement work and greatly reducing the construction difficulty. The diameter of the hexagonal mounting hole is adapted to the diameter of the connecting post. After snapping, it can limit the lateral displacement of the connecting post and ensure that the screw and the purlin remain perpendicular. The nut is a high-strength hexagonal nut, which can provide a stable preload after tightening, so that the first and second inner C-shaped steel linings fit tightly and prevent loosening.
[0009] Preferably, the purlins are arranged in two sets and are positioned opposite each other. The inner C-shaped steel liner one and the inner C-shaped steel liner two are staggered. The top of the inner C-shaped steel liner one is in contact with the top of the inner side of the purlin, and the bottom of the inner C-shaped steel liner two is in contact with the bottom of the inner side of the purlin. The two sets of purlins form a double purlin cooperative structure through the overlapping components. The staggered inner C-shaped steel liners can fill the weak stress areas inside the purlins, improve the bending stiffness of the purlins, and adapt to the load requirements of large-span roofs.
[0010] Preferably, anti-slip pads are fixedly installed on the top of the first inner C-shaped steel and the bottom of the second inner C-shaped steel. The anti-slip pads are made of nitrile rubber, which can prevent the first and second inner C-shaped steels from sliding along the inner wall of the purlin when subjected to force or vibration, and at the same time absorb some vibration energy, reducing the damage of vibration to the connection structure between the purlin and the inner lining.
[0011] Preferably, the purlins are made of hot-dip galvanized I-beams, which can resist corrosion in open or humid environments.
[0012] Preferably, the connecting column and the screw are integral forged structures, which can withstand the tensile force generated when the purlin and the inner lining are subjected to force together, thus avoiding breakage. The length of the connecting column is adapted to the wall thickness of the inner lining C-shaped steel, ensuring that the connecting column is flush with the outer wall of the inner lining C-shaped steel after snapping, without any protrusions or interference.
[0013] Compared with the prior art, the beneficial effects of this utility model are: This structure, used for reinforcing C-shaped purlins, utilizes a combination of inner C-shaped steel liners (one and two), hexagonal mounting holes, threaded rods, connecting columns, limiting plates, and nuts. The position of the inner C-shaped steel liners is adjusted by rotating the nuts, allowing for precise control of the reinforcement effect. The adjustment process is simple and quick, avoiding complex welding or reinforcement work and significantly reducing construction difficulty. The diameter of the hexagonal mounting holes matches the diameter of the connecting columns, limiting lateral displacement after engagement and ensuring the threaded rod remains perpendicular to the purlin. The high-strength hexagonal nuts provide stable preload after tightening, ensuring a tight fit between inner C-shaped steel liners one and two, preventing loosening. Simultaneously, inner C-shaped steel liners one and two effectively share the load of the purlin, increasing the overall strength and rigidity of the structure. Especially when subjected to lateral or longitudinal loads, it effectively prevents the purlin from bending or deforming. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a partial perspective view of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the present invention.
[0015] Reference numerals: 1. Purlin; 2. C-shaped steel lining one; 3. C-shaped steel lining two; 4. Hexagonal mounting hole; 5. Screw; 6. Connecting column; 7. Limiting plate; 8. Nut. Detailed Implementation
[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] Please see Figure 1-3 This utility model provides a technical solution: a C-shaped purlin reinforcement structure, including a purlin 1 and an overlapping component. The purlin 1 is provided with an inner C-shaped steel liner 1 2 and an inner C-shaped steel liner 2 3. The overlapping component is provided on the inner C-shaped steel liner 1 2 and the inner C-shaped steel liner 2 3. The overlapping component includes a hexagonal mounting hole 4, a screw 5, a connecting post 6, a limiting plate 7, and a nut 8. The inner C-shaped steel liner 1 2 and the inner C-shaped steel liner 2 3 are each provided with six sets of hexagonal mounting holes 4 and are linearly distributed. The screw 5 is provided inside the hexagonal mounting hole 4. The bottom of the screw 5 is fixedly installed with the connecting post 6, and the bottom of the connecting post 6 is fixedly installed with the limiting plate 7.
[0018] Furthermore, the overlapping assembly also includes a nut 8. The top of the screw 5 passes sequentially through the hexagonal mounting holes 4 on the inner C-shaped steel liner 1 2 and the inner C-shaped steel liner 2 3. The connecting post 6 is snapped into the hexagonal mounting hole 4 on the inner C-shaped steel liner 1 2. The top of the limiting plate 7 contacts the bottom of the inner C-shaped steel liner 1 2. The nut 8 is threaded onto the screw 5. The inner C-shaped steel liner 1 2 and the inner C-shaped steel liner 2 3 are staggered and placed inside the purlin 1, aligning the inner C-shaped steel liner 1 2 with the inner C-shaped steel liner 3. Insert the screw 5 into the hexagonal mounting hole 4 on the inner C-shaped steel liner 23 from one side of the inner C-shaped steel liner 2, so that the screw 5 passes through the mounting holes 4 of the inner C-shaped steel liner 2 and the inner C-shaped steel liner 3 in sequence. At this time, the connecting post 6 at the bottom of the screw 5 will be inserted into the hexagonal mounting hole 4 of the inner C-shaped steel liner 2 as the screw 5 is inserted. Take the nut 8 and put it on the screw 5. Use a wrench to turn the nut 8 clockwise. Since the screw 5 and the nut 8 are threaded, During rotation, nut 8 moves downward along screw 5, gradually approaching the top of inner C-shaped steel liner 2 3. Continue rotating nut 8 until it is in close contact with the top of inner C-shaped steel liner 2 3. Adjusting the position of inner C-shaped steel liner by rotating nut 8 allows for precise control of the reinforcement effect. The adjustment process is simple and quick, avoiding complex welding or reinforcement work and greatly reducing construction difficulty. The diameter of hexagonal mounting hole 4 matches the diameter of connecting column 6. After snapping, it can limit the lateral displacement of connecting column 6, ensuring that screw 5 and purlin 1 remain perpendicular. Nut 8 is a high-strength hexagonal nut, which provides stable preload after tightening, ensuring that inner C-shaped steel liner 1 2 and inner C-shaped steel liner 2 3 fit tightly and prevent loosening. At the same time, inner C-shaped steel liner 1 2 and inner C-shaped steel liner 2 3 can effectively share the load of purlin, increasing the overall strength and rigidity of the structure. Especially when bearing lateral or longitudinal loads, it can effectively prevent purlin from bending or deforming.
[0019] Furthermore, there are two sets of purlins 1 arranged opposite to each other, with inner C-shaped steel lining 2 and inner C-shaped steel lining 3 staggered. The top of inner C-shaped steel lining 2 contacts the top inner side of purlin 1, and the bottom of inner C-shaped steel lining 3 contacts the bottom inner side of purlin 1. The two sets of purlins 1 form a double purlin cooperative structure through overlapping components. The staggered inner C-shaped steel lining can fill the weak stress areas inside purlin 1, improve the bending stiffness of purlin 1, and adapt to the load requirements of large-span roofs.
[0020] Furthermore, anti-slip pads are fixedly installed on the top of the inner C-shaped steel liner 12 and the bottom of the inner C-shaped steel liner 23. The anti-slip pads are made of nitrile rubber, which can prevent the inner C-shaped steel liner 12 and the inner C-shaped steel liner 23 from sliding along the inner wall of the purlin 1 when subjected to force or vibration. At the same time, they can absorb some vibration energy and reduce the damage of vibration to the connection structure between the purlin 1 and the inner liner.
[0021] Furthermore, purlin 1 is made of hot-dip galvanized I-beams, which can resist corrosion in open or humid environments.
[0022] Secondly, the connecting column 6 and the screw 5 are integral forged structures, which can withstand the tensile force generated when the purlin 1 and the inner lining are subjected to force together, thus avoiding breakage. The length of the connecting column 6 is adapted to the wall thickness of the inner lining C-shaped steel 2, ensuring that after the connection is made up, the connecting column 6 is flush with the outer wall of the inner lining C-shaped steel 2, without any protrusions or interference.
[0023] Working principle: According to the roof reinforcement requirements, insert C-shaped steel lining 1 (2) and C-shaped steel lining 2 (3) alternately into the purlin 1, aligning the hexagonal mounting holes 4 on C-shaped steel lining 1 and C-shaped steel lining 2 and 3. Insert the screw 5 into the hexagonal mounting hole 4 from one side of C-shaped steel lining 1, so that the screw 5 passes through the mounting holes 4 of C-shaped steel lining 1 and C-shaped steel lining 2 and 3 in sequence. At this time, the connecting post 6 at the bottom of the screw 5 will engage with the screw 5 and lock into the hexagonal mounting hole 4 of C-shaped steel lining 1. Because the connecting post 6 is compatible with the hexagonal mounting hole 4, the engagement can limit the lateral displacement of the screw 5. At the same time, the limiting plate 7 contacts the bottom of C-shaped steel lining 1, forming initial support and preventing the screw 5 from slipping out of the mounting hole. Place the nut 8 on the screw 5 and use a wrench to turn the nut 8 clockwise. Nut 8 is threaded. During rotation, nut 8 moves downward along screw 5, gradually approaching the top of inner C-shaped steel liner 2 3. Continue rotating nut 8 until it is in close contact with the top of inner C-shaped steel liner 2 3. At this point, stop rotating. During the tightening process, nut 8 will exert downward pressure on inner C-shaped steel liner 2 3. This pressure is transmitted through inner C-shaped steel liner 2 3 to inner C-shaped steel liner 1 2, and then through inner C-shaped steel liner 1 2 to the inner wall of purlin 1. At the same time, connecting post 6 is engaged in the mounting hole of inner C-shaped steel liner 1 2. Limiting plate 7 provides upward reaction force, which, together with the downward pressure of nut 8, forms a bidirectional clamping effect, so that the top anti-slip pad of inner C-shaped steel liner 1 2 is tightly attached to the top inner side of purlin 1, and the bottom anti-slip pad of inner C-shaped steel liner 2 3 is tightly attached to the bottom inner side of purlin 1. There are no gaps between the three, forming a rigid whole.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A reinforcement structure for C-shaped purlins, characterized in that, include: Purlin (1), the interior of purlin (1) is provided with inner C-shaped steel one (2) and inner C-shaped steel two (3); The overlapping assembly is set on the inner C-shaped steel liner 1 (2) and the inner C-shaped steel liner 2 (3). The overlapping assembly includes a hexagonal mounting hole (4), a screw (5), a connecting post (6), a limiting plate (7) and a nut (8). The inner C-shaped steel liner 1 (2) and the inner C-shaped steel liner 2 (3) are each provided with six sets of hexagonal mounting holes (4) and are linearly distributed. The screw (5) is set inside the hexagonal mounting hole (4). The bottom of the screw (5) is fixedly installed with the connecting post (6). The bottom of the connecting post (6) is fixedly installed with the limiting plate (7).
2. The C-type purlin reinforcement structure according to claim 1, characterized in that: The lap assembly also includes a nut (8), the top end of the screw (5) passes through the hexagonal mounting holes (4) on the inner C-shaped steel liner one (2) and the inner C-shaped steel liner two (3) in sequence, the connecting column (6) is snapped into the hexagonal mounting hole (4) on the inner C-shaped steel liner one (2), the top of the limiting plate (7) contacts the bottom of the inner C-shaped steel liner one (2), and the nut (8) is threaded on the screw (5).
3. The C-type purlin reinforcement structure according to claim 2, characterized in that: The purlin (1) has two sets and is arranged opposite to each other. The inner C-shaped steel one (2) and the inner C-shaped steel two (3) are arranged alternately. The top of the inner C-shaped steel one (2) is in contact with the inner top of the purlin (1), and the bottom of the inner C-shaped steel two (3) is in contact with the inner bottom of the purlin (1).
4. A C-type purlin reinforcement structure according to claim 3, characterized in that: Anti-slip pads are fixedly installed on the top of the inner C-shaped steel liner (2) and the bottom of the inner C-shaped steel liner (3).
5. A C-type purlin reinforcement structure according to claim 4, characterized in that: The purlin (1) is made of hot-dip galvanized I-beams.
6. A C-type purlin reinforcement structure according to claim 5, characterized in that: The connecting column (6) and the screw (5) are an integrated forged structure.