Reinforcing structure and reinforcing method for pressed rod piece of existing grid structure

Abstract

The invention discloses a reinforcing structure and method for an existing grid structure pressed rod piece, the reinforcing structure comprises an outer sleeve and end restraint devices, the outer sleeve comprises two sleeve shells, the two sleeve shells are connected in a buckled mode, the end restraint devices are located at the two ends of the outer sleeve, and each end restraint device comprises a connecting cylinder, a supporting platform and a restraint body; the connecting cylinder is fixedly arranged on the existing rod piece in a sleeving mode, the supporting platform is connected to the connecting cylinder, the supporting platform is limited to the end of the outer sleeve so as to limit the outer sleeve to move in the length direction of the existing rod piece, the restraining body is arranged on the supporting platform, and the restraining body is matched with the outer sleeve in a limiting mode so as to limit the outer sleeve to rotate around the existing rod piece. The outer sleeve of the reinforcing structure is formed by bending the metal plate, flexible adjustment can be conveniently conducted according to the size of the existing rod piece, the end restraining devices arranged at the two ends can restrain the existing rod piece in multiple directions, smooth installation of the outer sleeve is facilitated, and the pressed stable bearing capacity of the existing rod piece can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of steel structures and space structures, and in particular to a reinforcement structure of a compression rod of an existing grid structure and a reinforcement method thereof. Background Art

[0002] Grid structures are widely used in large buildings, bridges, stadiums and other projects, especially in situations where they are subjected to large loads. Due to uneven force, material fatigue and improper construction, the compressive members of the grid structure often become unstable or deformed, resulting in reduced safety of the entire structure. In order to enhance the performance of the members, the members can be reinforced, such as by installing steel pipes on the outside of the members. However, in the process of reinforcing the compressive members, there is often a lack of suitable circular steel pipes for reinforcement. Different members have different diameters and shapes, and the existing circular steel pipe specifications cannot match various sizes of compressive members, resulting in reinforcement operations often requiring the customization of special specifications of steel pipes or the use of complex processing techniques to complete the reinforcement operations, which not only increases the cost of reinforcement, but also limits the applicability and flexibility of the reinforcement scheme.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] In order to solve one of the above technical problems, the present invention provides a reinforcement structure of a compression rod of an existing grid structure and a reinforcement method thereof.

[0005] The present invention adopts the following technical solutions:

[0006] On the one hand, an embodiment of the present application provides a reinforcement structure of a compression rod of an existing grid structure, comprising:

[0007] Existing rods;

[0008] An outer sleeve, the outer sleeve comprising two sleeve shells, the two sleeve shells are respectively arranged on both sides of the existing rod, the two sleeve shells are buckled and connected, the two sleeve shells are enclosed to form a through groove for the existing rod to pass through, and the sleeve shells are formed by bending a metal plate;

[0009] An end restraint device is located at both ends of the outer sleeve, and the end restraint device includes a connecting tube, a supporting platform and a restraint body. The connecting tube is fixedly sleeved on the existing rod, the supporting platform is connected to the connecting tube, and the supporting platform is limited at the end of the outer sleeve to limit the movement of the outer sleeve along the length direction of the existing rod. The restraint body is arranged on the supporting platform, and the restraint body and the outer sleeve are limited to cooperate to limit the rotation of the outer sleeve around the existing rod.

[0010] Optionally, the sleeve housing comprises two main shell walls, the two main shell walls are connected, and an angle is formed between the two main shell walls;

[0011] The two main shell walls are provided with fitting edges on opposite sides thereof;

[0012] When the two sleeve shells are buckled together, the main shell walls of the two sleeve shells enclose and form the through groove, and the fitting edges of the two sleeve shells fit together;

[0013] The abutting edges of the two sleeve shells are connected and fixed by fasteners.

[0014] Optionally, the reinforcement structure comprises a plurality of stiffening rib plates;

[0015] Each of the stiffening ribs is welded to the outer side surface of the sleeve shell, and each of the stiffening ribs is sequentially spaced along the length direction of the sleeve shell;

[0016] The stiffening rib plate extends along the width direction of the outer sleeve.

[0017] Optionally, the reinforcement structure includes a plurality of internal reinforcing ribs, each of which is arranged on the inner side of the sleeve shell, and each of which is arranged in sequence and spaced apart along the length direction of the sleeve shell;

[0018] The internal reinforcing ribs are respectively connected to the two main shell walls of the sleeve shell.

[0019] Optionally, the through slot comprises a corner space between two adjacent main shell walls;

[0020] A plurality of the constraint bodies are arranged on the support platform, and the constraint bodies are arranged in sequence and at intervals along the circumference of the connecting tube;

[0021] Each of the constraint bodies is located in the through slot, and each of the constraint bodies extends into a corresponding angular space to limit the outer sleeve from rotating around the existing rod.

[0022] Optionally, the constraint body includes two sheets, opposite ends of the two sheets are connected, and the other opposite ends of the two sheets are separated;

[0023] The two sheets are welded to the supporting platform;

[0024] The two sheets are respectively attached to the main shell walls on both sides of the corresponding corner space.

[0025] Optionally, the end restraint device comprises two restraint shells, and connecting plates are respectively provided on both sides of the restraint shells;

[0026] The two restraining shells each have a semi-support platform and a semi-connecting cylinder;

[0027] When the two restraining shells are buckled together, the semi-supporting platforms of the two restraining shells are spliced ​​to form a complete supporting platform, and the semi-connecting cylinders of the two restraining shells are spliced ​​to form a complete connecting cylinder;

[0028] The fastener can connect the connecting plates on the two constraint shells so that the two constraint shells are clamped and fixed to the existing rod. Optionally, the reinforcement structure includes a gasket;

[0029] The gasket is arranged between the outer wall of the existing rod and the inner wall of the connecting tube.

[0030] In a second aspect, an embodiment of the present application provides a method for reinforcing a reinforcement structure of a compression rod of an existing grid structure, comprising:

[0031] Step S1, preparing a reinforcement structure of corresponding specifications according to the size and use requirements of the existing rod, wherein the reinforcement structure includes an outer sleeve and an end restraint device;

[0032] Step S2, installing two sleeve shells of the outer sleeve on the outside of the existing rod, so that the outer sleeve covers the existing rod, and adjusting the position of the outer sleeve so that there is a gap between the existing rod and the inner surface of the outer sleeve;

[0033] Step S3, installing two end restraining devices on the existing rod at both ends of the outer sleeve to fix the outer sleeve;

[0034] Wherein, in step S2, the ratio of the length of the outer sleeve to the length of the existing rod is not less than 0.7.

[0035] Optionally, in step S1, the step of processing the outer sleeve is included:

[0036] Step S11, cutting out metal plates of corresponding sizes according to the sizes of the existing rods;

[0037] Step S12, using a metal plate folding machine to perform multiple bending processes on the metal plate to form a sleeve shell, wherein the sleeve shell has two main shell walls, the two main shell walls have an angle, and the two main shell walls have opposite sides forming a fitting edge;

[0038] Step S13, placing two sleeve shells on both sides of the existing rod respectively, and buckling them together so that the opposite fitting edges of the two sleeve shells fit together;

[0039] Step S14: Connect and fix the mating edges of the two sleeve shells that are in contact with each other by means of bolts.

[0040] By adopting the above technical solution, the present application has the following beneficial effects:

[0041] The outer sleeve of the reinforcement structure of the present application is formed by bending a metal plate, which is convenient for flexible adjustment according to the size of the rod to be reinforced. End restraint devices are set at both ends of the reinforcement structure, which can form multi-directional constraints on the existing rods, facilitating the smooth installation of the outer sleeve. Compared with the existing conventional operations, it can also improve the reinforcement effect of the rods and avoid the occurrence of low-order buckling of the existing rods. The reinforcement structure of the present application can effectively improve the compressive stable bearing capacity of the rods and has broad application prospects.

[0042] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0044] Figure 1 A structural schematic diagram showing a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application;

[0045] Figure 2 A schematic diagram showing the structure of a sleeve shell in a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application;

[0046] Figure 3 A side view of a sleeve housing in a reinforcement structure of a compression rod of an existing grid structure provided by an embodiment of the present application is shown;

[0047] Figure 4 A schematic diagram of the three-dimensional structure of a sleeve shell in a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application is shown;

[0048] Figure 5 A state diagram showing a sleeve shell hidden in the reinforcement structure of the compression rod of the existing grid structure provided by the embodiment of the present application;

[0049] Figure 6 A schematic diagram showing the matching structure of the end restraint device, the existing rod and the outer sleeve in the reinforcement structure of the existing grid structure compression rod provided by the embodiment of the present application;

[0050] Figure 7 A partial structural diagram showing a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application;

[0051] Figure 8A schematic diagram showing the structure of a restraining shell of an end restraining device at one end of a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application;

[0052] Fig. 9 A schematic structural diagram of a restraining shell of an end restraining device at the other end of a reinforcement structure of a compression rod of an existing grid structure provided in an embodiment of the present application is shown.

[0053] In the figure:

[0054] 1. Existing rods; 2. Outer sleeve; 21. Sleeve shell; 211. Main shell wall; 212. Fitting edge; 213. Stiffening ribs; 214. Internal reinforcement ribs; 22. Through groove; 221. Corner space; 3. End restraint device; 31. Restraint shell; 311. Semi-connecting cylinder; 312. Semi-supporting platform; 313. Connecting plate; 314. Restraint body; 3a. Connecting cylinder; 3b. Supporting platform; 4. Gasket; 5. Fasteners.

[0055] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0057] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] like Figures 1 to 9As shown, the embodiment of the present application provides a reinforcement structure of a compression rod of an existing grid structure, comprising: an existing rod 1, an outer sleeve 2 and an end restraint device 3. The outer sleeve 2 comprises two sleeve shells 21, which are respectively arranged on both sides of the existing rod 1, and the two sleeve shells 21 are buckled and connected. The two sleeve shells 21 enclose a through groove 22 for the existing rod 1 to pass through, and the sleeve shell 21 is formed by bending a metal plate. The end restraint device 3 is located at both ends of the outer sleeve 2, and the end restraint device 3 comprises a connecting tube 3a, a supporting platform 3b and a restraint body 314. The connecting tube 3a is fixedly sleeved on the existing rod 1, and the supporting platform 3b is connected to the connecting tube 3a, and the supporting platform 3b is limited at the end of the outer sleeve 2 to limit the outer sleeve 2 from moving along the length direction of the existing rod 1. The restraint body 314 is arranged on the supporting platform 3b, and the restraint body 314 and the outer sleeve 2 are limited to cooperate to limit the outer sleeve 2 from rotating around the existing rod 1. In the embodiment of the present application, the sleeve housing 21 can be formed by bending a steel plate through a metal plate bending machine, and the thickness can be adjusted according to the size of the rod to be reinforced, generally 2 to 14 mm. The length of the outer sleeve 2 can be 60% to 80% of the length of the existing rod 1.

[0060] The reinforcement structure provided by the embodiment of the present application is different from the traditional circular steel pipe reinforcement method. The outer sleeve 2 in the reinforcement structure of the present application is not a circular tube, but a bent plate shell made by bending a metal plate. The present application can flexibly adjust the specifications and sizes of the metal plate according to the specific size of the existing rod 1, and adaptively adjust the bending position of the metal plate bending machine to process the outer sleeve 2 that meets the size requirements, solving the problem caused by size mismatch in the existing rod reinforcement technology.

[0061] The outer sleeve 2 of the reinforcement structure of the present application is formed by bending a metal plate, which is convenient for flexible adjustment according to the size of the rod to be reinforced, avoiding the problems caused by size mismatch in the traditional circular steel pipe reinforcement method. This folding plate reinforcement method can be widely applied to compression rods of various sizes, greatly improving the adaptability of the reinforcement device. End restraint devices 3 are set at both ends of the reinforcement structure, which facilitates the smooth installation of the outer sleeve 2. The end restraint devices 3 can form multi-directional constraints on the existing rod 1, avoiding the occurrence of low-order buckling of the existing rod 1, and thus improving the stable bearing capacity. The reinforcement structure of the present application can effectively improve the compressive stable bearing capacity of the existing rod 1, and has a broad application prospect.

[0062] In some possible implementations, such as Figure 1 and Figure 2As shown, the sleeve housing 21 includes two main housing walls 211, the two main housing walls 211 are connected, and there is an edge and an angle between the two main housing walls 211. The two main housing walls 211 are provided with a fitting edge 212 on the opposite sides. When the two sleeve housings 21 are engaged with each other, the main housing walls 211 of the two sleeve housings 21 are enclosed to form a through groove 22, and the fitting edges 212 of the two sleeve housings 21 are fitted together. The fitting edges 212 of the two sleeve housings 21 are connected and fixed by fasteners 5.

[0063] The sleeve shell 21 is bent by a metal plate folding machine to form two straight main shell walls 211 and two straight fitting edges 212, and a crease is formed between each main shell wall 211 and each fitting edge 212. The cross section of the through groove 22 can be square. The existing rod 1 is arranged to pass through the through groove 22, and there is a gap between the existing rod 1 and the inner wall of the main shell wall 211 to ensure uniform force between the outer sleeve 2 and the existing rod 1. The gap can be met by adjusting the size of the outer sleeve 2. The design of the reinforcement structure of the present application can flexibly adapt to rods of different diameters, solving the size mismatch problem existing in traditional reinforcement methods.

[0064] The fastener 5 can be a bolt, and the abutting edges 212 of the two sleeve shells 21 can be connected and fixed by bolts. The reinforcement structure of the present application does not require welding operations, and the outer sleeve 2 can be effectively connected and fixed by bolts, which effectively avoids the material performance degradation and damage that may occur in the original structure due to welding. The reinforcement structure of the present application has a simple structure and is easy to install during the assembly process.

[0065] In some possible implementations, such as Figure 1 and Figure 2 As shown, the reinforcement structure includes a plurality of stiffening ribs 213 , each of which is welded to the outer side of the sleeve shell 21 , and each of which is spaced in sequence along the length direction of the sleeve shell 21 , and extends along the width direction of the outer sleeve 2 .

[0066] The stiffening ribs 213 can be made of metal plates with a thickness of 2 mm to 6 mm and fixed to the sleeve housing 21. The number and position of the stiffening ribs 213 can be adjusted according to the stress state of the existing rod 1. The lateral rigidity of the sleeve housing 21 is enhanced by the stiffening ribs 213, thereby improving the compressive strength and stability of the reinforcement device. The stiffening ribs 213 can be fixed to the sleeve housing 21 by welding to ensure that the stiffening ribs 213 are tightly connected to the sleeve housing 21.

[0067] In some possible implementations, such as Figure 3 and Figure 4As shown, the reinforcement structure includes a plurality of internal reinforcing ribs 214, each of which is arranged on the inner side of the sleeve shell 21, and each of the internal reinforcing ribs 214 is arranged in sequence and spaced apart along the length direction of the sleeve shell 21, and the internal reinforcing ribs 214 are respectively connected to the two main shell walls 211 of the sleeve shell 21.

[0068] The internal reinforcing ribs 214 may be triangular in shape and are respectively fixed to the two main shell walls 211 of the sleeve shell 21. This increases the rigidity of the sleeve shell 21 and overcomes the occurrence of low-order buckling of the compression rod to increase the stable bearing capacity.

[0069] In some possible embodiments, combined with Figure 2 , Figure 5 and Figure 6 As shown, the through groove 22 includes an angular space 221 between two adjacent main shell walls 211, and a plurality of restraining bodies 314 are arranged on the support platform 3b, each restraining body 314 is sequentially arranged along the circumference of the connecting tube 3a, each restraining body 314 is located in the through groove 22, and each restraining body 314 extends into the corresponding angular space 221 to restrict the outer sleeve 2 from rotating around the existing rod 1. The end restraining device 3 is used to fix the position of the outer sleeve 2 and can effectively restrain the outer sleeve 2 from rotating and sliding.

[0070] The two sleeve shells 21 of the outer sleeve 2 have four main shell walls 211 in total. The four main shell walls 211 are arranged in sequence along the circumference of the existing rod body. An angular space 221 is formed between two adjacent main shell walls 211. The support platform 3b can be a circular ring plate. The circular ring plate is protruded along one side of the thickness direction to set various constraint bodies 314. Each constraint body 314 is respectively located in the corresponding angular space 221. The four constraint bodies 314 respectively bear the resistance in the rotation direction of the outer sleeve 2, which is conducive to extending the service life. It should be noted that in the two end constraint devices 3, at least one of the support platforms 3b on which the constraint bodies 314 are set.

[0071] In some possible implementations, such as Figure 6 As shown, the constraint body 314 includes two sheets, the opposite ends of the two sheets are connected, and the other ends of the two sheets are separated. The two sheets are welded to the support platform 3b, and the two sheets are respectively attached to the main shell walls 211 on both sides of the corresponding corner space 221.

[0072] The restraining body 314 is roughly a "V"-shaped structure, and one side of the tip of the restraining body 314 extends into the corner space 221, and can be conveniently attached to the main shell walls 211 on both sides of the corner space 221, and can effectively limit the rotation of the outer sleeve 2.

[0073] In some possible implementations, such as Figures 6 to 9As shown, the end restraint device 3 includes two restraint shells 31, and connecting plates 313 are respectively arranged on both sides of the restraint shells 31. The two restraint shells 31 have a semi-support platform 312 and a semi-connecting cylinder 311. When the two restraint shells 31 are engaged with each other, the semi-support platforms 312 of the two restraint shells 31 are spliced ​​to form a complete support platform 3b, and the semi-connecting cylinders 311 of the two restraint shells 31 are spliced ​​to form a complete connecting cylinder 3a. The fastener 5 can connect the connecting plates 313 on the two restraint shells 31, so that the two restraint shells 31 are clamped and fixed to the existing rod 1.

[0074] The connecting plate 313 may be L-shaped, including a first connecting section and a second connecting section which are perpendicular to each other. The first connecting section extends along the radial direction of the semi-support platform 312, and the second connecting section extends along the length direction of the semi-connecting cylinder 311. The first connecting section and the second connecting section are both provided with connecting holes, so that the fasteners 5 can pass through the connecting holes on the two restraining shells 31 to connect and fix the two restraining shells 31. The fasteners 5 may be bolts.

[0075] In some possible implementations, such as Figures 7 to 9 As shown, the reinforcement structure includes a gasket 4, which is arranged between the outer wall of the existing rod 1 and the inner wall of the connecting tube 3a.

[0076] In this embodiment, a gasket 4 is provided between the end restraint device 3 and the existing rod 1, and the connection plates 313 on the two restraint housings 31 are fixed together by pre-tightening bolts to complete the assembly of the end restraint. The pre-tightening bolts cause annular restraint between the gasket 4 and the existing rod 1, and at the same time, the restraint body 314 and the outer sleeve 2 are limited and cooperated to achieve the effect of fixing the outer sleeve 2. The provision of the end restraint device 3 enhances the reinforcement effect of the existing rod 1.

[0077] The gasket 4 has excellent deformation, pressure resistance and corrosion resistance. The gasket 4 is wrapped between the connecting tube 3a of the end restraint device 3 and the existing rod 1, filling the gap and improving the overall strength of the reinforced area. The thickness of the gasket 4 is generally 1mm to 3mm, and the width covers the contact area between the connecting tube 3a and the existing rod 1, increasing the cross-sectional area of ​​the exposed part of the existing rod 1, and effectively improving its bearing capacity.

[0078] The embodiment of the present application also provides a method for reinforcing the structure of the existing compression rod of the grid structure, including:

[0079] Step S1, preparing a reinforcement structure of corresponding specifications according to the size and use requirements of the existing rod 1, the reinforcement structure comprising an outer sleeve 2 and an end restraint device 3;

[0080] In this step, the sleeve housing 21, the stiffening rib plate and the end restraint device 3 of appropriate thickness and specification are selected according to the size and use requirements of the existing rod 1 to prepare for the subsequent steps.

[0081] Step S2, installing the two sleeve shells 21 of the outer sleeve 2 on the outside of the existing rod 1, so that the outer sleeve 2 covers the existing rod 1, and adjusting the position of the outer sleeve 2 so that there is a gap between the inner surfaces of the existing rod 1 and the outer sleeve 2;

[0082] This step also includes adjusting the position of the outer sleeve 2 during the process of connecting and fixing the two sleeve shells 21 by bolts, so that there is a gap between the inner surfaces of the existing rod 1 and the outer sleeve 2, ensuring that the outer sleeve 2 can be evenly stressed.

[0083] After step S2, during the process of installing the stiffening ribs 213 on the sleeve housing 21, according to the stress state of the existing rod 1, the stiffening ribs 213 of appropriate quantity and position are selected and fixed on the sleeve housing 21 to enhance the lateral stiffness of the sleeve housing 21.

[0084] Step S3, installing two end restraining devices 3 on the existing rod 1 at both ends of the outer sleeve 2 to fix the outer sleeve 2;

[0085] Wherein, in step S2, the ratio of the length of the outer sleeve to the length of the existing rod should not be less than 0.7.

[0086] By installing two end restraining devices 3 on the existing rod 1 at both ends of the outer sleeve 2, it is ensured that the orientation of the outer sleeve 2 can be fixed and the outer sleeve 2 can be effectively restricted from sliding along the existing rod 1 and rotating around the existing rod 1.

[0087] In step S3, there is also a step of installing a gasket 4. Placing the gasket 4 between the connecting tube 3a of the end restraint device 3 and the existing rod 1 can ensure that the gap is filled and the strength of the reinforced area is improved.

[0088] Optionally, in step S1, the step of processing the outer sleeve 2 is included:

[0089] Step S11, cutting out a metal plate of corresponding size according to the size of the existing rod 1;

[0090] Step S12, using a metal plate folding machine to perform multiple bending processes on the metal plate to form a sleeve housing 21, wherein the sleeve housing 21 has two main housing walls 211, the two main housing walls 211 have an angle, and the two main housing walls 211 have opposite sides formed with fitting edges 212;

[0091] Step S13, placing two sleeve shells 21 on both sides of the existing rod 1 respectively, and buckling them together so that the opposite fitting edges 212 of the two sleeve shells 21 fit together;

[0092] Step S14: Connect and fix the abutting edges 212 of the two sleeve shells 21 by bolts.

[0093] The reinforcement structure of the existing grid structure compression rod of the present application has multiple reinforcement mechanisms. First, by assembling the outer sleeve 2 with a gap between the existing rod 1, the low-order buckling of the existing rod 1 is limited, the stability of the existing rod 1 is further improved, the early instability of the existing rod 1 is avoided, and the stable bearing capacity is improved. Secondly, by combining the connecting tube 3a at the end restraint device 3 with the gasket 4, the interface contact area between the end restraint device 3 and the existing rod 1 is increased, and the reinforcement effect is enhanced.

[0094] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A reinforcement structure for a compression rod of an existing grid structure, characterized in that: include: Existing rods; An outer sleeve, the outer sleeve comprising two sleeve shells, the two sleeve shells are respectively arranged on both sides of the existing rod, the two sleeve shells are buckled and connected, the two sleeve shells are enclosed to form a through groove for the existing rod to pass through, and the sleeve shells are formed by bending a metal plate; An end restraint device is located at both ends of the outer sleeve, and the end restraint device includes a connecting tube, a supporting platform and a restraint body. The connecting tube is fixedly sleeved on the existing rod, the supporting platform is connected to the connecting tube, and the supporting platform is limited at the end of the outer sleeve to limit the movement of the outer sleeve along the length direction of the existing rod. The restraint body is arranged on the supporting platform, and the restraint body and the outer sleeve are limited to cooperate to limit the rotation of the outer sleeve around the existing rod.

2. The reinforcement structure of the existing compression rod of the grid structure according to claim 1 is characterized in that: The sleeve housing comprises two main shell walls, the two main shell walls are connected, and there is an angle between the two main shell walls; The two main shell walls are provided with fitting edges on opposite sides thereof; When the two sleeve shells are buckled together, the main shell walls of the two sleeve shells enclose and form the through groove, and the fitting edges of the two sleeve shells fit together; The fitting edges of the two sleeve shells are connected and fixed by fasteners.

3. The reinforcement structure of the existing compression rod of the grid structure according to claim 2 is characterized in that: including a plurality of stiffening rib plates; Each of the stiffening ribs is welded to the outer side surface of the sleeve shell, and each of the stiffening ribs is sequentially spaced along the length direction of the sleeve shell; The stiffening rib plate extends along the width direction of the outer sleeve.

4. The reinforcement structure of the existing compression rod of the grid structure according to claim 2 is characterized in that: It comprises a plurality of internal reinforcing ribs, each of which is arranged on the inner side of the sleeve shell, and each of which is arranged in sequence and at intervals along the length direction of the sleeve shell; The internal reinforcing ribs are respectively connected to the two main shell walls of the sleeve shell.

5. The reinforcement structure of the existing compression rod of the grid structure according to claim 2 is characterized in that: The through slot includes a corner space between two adjacent main shell walls; A plurality of the constraint bodies are arranged on the support platform, and the constraint bodies are arranged in sequence and at intervals along the circumference of the connecting tube; Each of the constraint bodies is located in the through slot, and each of the constraint bodies extends into a corresponding angular space to limit the outer sleeve from rotating around the existing rod.

6. The reinforcement structure of the existing compression rod of the grid structure according to claim 5 is characterized in that: The constraint body includes two sheets, one opposite end of the two sheets is connected, and the other opposite end of the two sheets is separated; The two sheets are welded to the supporting platform; The two sheets are respectively attached to the main shell walls on both sides of the corresponding corner space.

7. The reinforcement structure of the existing compression rod of the grid structure according to claim 1 is characterized in that: The end restraint device comprises two restraint shells, and connecting plates are respectively arranged on both sides of the restraint shells; The two restraining shells each have a semi-support platform and a semi-connecting cylinder; When the two restraining shells are buckled together, the semi-supporting platforms of the two restraining shells are spliced ​​to form a complete supporting platform, and the semi-connecting cylinders of the two restraining shells are spliced ​​to form a complete connecting cylinder; The fastener can connect the connecting plates on the two constraint shells so that the two constraint shells are clamped and fixed to the existing rod.

8. The reinforcement structure of the existing compression rod of the grid structure according to any one of claims 1 to 7, characterized in that: Including gaskets; The gasket is arranged between the outer wall of the existing rod and the inner wall of the connecting tube.

9. A method for reinforcing a reinforced structure of an existing grid structure compression rod according to any one of claims 1 to 8, characterized in that: include: Step S1, preparing a reinforcement structure of corresponding specifications according to the size and use requirements of the existing rod, wherein the reinforcement structure includes an outer sleeve and an end restraint device; Step S2, installing two sleeve shells of the outer sleeve on the outside of the existing rod, so that the outer sleeve at least covers a portion of the existing rod, and adjusting the position of the outer sleeve so that there is a gap between the existing rod and the inner surface of the outer sleeve; Step S3, installing two end restraining devices on the existing rod at both ends of the outer sleeve to fix the outer sleeve; Wherein, in step S2, the ratio of the length of the outer sleeve to the length of the existing rod is not less than 0.

7.

10. The reinforcement method according to claim 9, characterized in that: In step S1, the steps of processing the outer sleeve are included: Step S11, cutting out metal plates of corresponding sizes according to the sizes of the existing rods; Step S12, using a metal plate folding machine to perform multiple bending processes on the metal plate to form a sleeve shell, wherein the sleeve shell has two main shell walls, the two main shell walls have an angle, and the two main shell walls have opposite sides forming a fitting edge; Step S13, placing two sleeve shells on both sides of the existing rod respectively, and buckling them together so that the opposite fitting edges of the two sleeve shells fit together; Step S14: Connect and fix the mating edges of the two sleeve shells that are in contact with each other by means of bolts.

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