A structure and method for strengthening a bridge abutment by enlarging its cross section with a glass fiber sleeve wrapped on one side

Abstract

This application relates to the technical field of bridge abutment cross-section enlargement and protection, specifically disclosing a structure and method for reinforcing a bridge abutment by enlarging its cross-section with a fiberglass sleeve wrapped on one side. The structure includes a fiberglass sleeve, a connecting assembly, and a limiting support assembly. The fiberglass sleeve is fixedly connected to the abutment, and is used to increase the abutment's cross-section and improve the abutment's surface's ability to resist scour. The connecting assembly is used to fixedly connect the fiberglass sleeve and the abutment, connecting the fiberglass sleeve and the abutment to form a single unit. The limiting support assembly is used to abut and support the connecting assembly, allowing it to contact any abutment plane to limit the position of the connecting assembly. This application has the effect of improving some of the defects existing in existing abutment reinforcement.

Description

Technical Field

[0001] The present application relates to the technical field of bridge abutment cross-section enlargement and protection, and in particular to a structure and method for reinforcing a bridge abutment by enlarging its cross-section with a glass fiber sleeve wrapped on one side. Background Art

[0002] In modern bridge construction, with increasing traffic volume and extended service life, many existing abutments face challenges such as insufficient load-bearing capacity and degraded structural performance. While traditional abutment reinforcement methods, such as increasing cross-sections, attaching steel plates, attaching carbon fiber cloth, and increasing cross-sections with a combination of steel and concrete, can improve abutment load-bearing capacity to a certain extent, they have numerous limitations.

[0003] For example, the method of increasing the cross-section has a long construction period, occupies a large space, and causes greater disturbance to the original structure; the adhesives of the steel plate gluing method and the carbon fiber cloth gluing method are prone to failure due to long-term water immersion and eventually lose their effectiveness; the steel-concrete combination method of increasing the cross-section has a larger cross-section after reinforcement, which increases the water resistance ratio of the river channel and reduces the flow section; the above methods cannot be directly constructed underwater and require cofferdam-assisted construction. They are dry construction methods, and such schemes cannot improve the durability of the bridge abutments. Summary of the Invention

[0004] In order to improve the following problems encountered in the existing abutment reinforcement: (1) the conventional method requires cofferdams to assist in construction, and the cofferdams have a great impact on site requirements, construction period and environment; (2) the conventional method of increasing the cross-section has a large thickness after reinforcement, which has a great impact on the appearance, and will seriously affect the river and drainage and flood discharge capacity, and even affect waterway transportation; (3) the conventional reinforcement method is a temporary solution. Over time, due to the erosion of water flow and the influence of dry and wet changes, the bridge piers will still have the same type of diseases, resulting in the need for secondary, tertiary or even more repair and reinforcement treatments, which is costly; the present application provides a structure and method for strengthening the abutment with a single-sided glass fiber sleeve enlarged cross-section.

[0005] In the first aspect, the present application provides a structure of a bridge abutment with a single-sided outer glass fiber sleeve for increased cross-section reinforcement, which adopts the following technical solutions:

[0006] A structure in which a bridge abutment is reinforced with a glass fiber sleeve on one side to increase the cross section, comprising:

[0007] Fiberglass sleeves are fixedly connected to the abutments to increase the cross-section of the abutments and improve the scour resistance of the abutment surfaces;

[0008] A connecting assembly is used to fix the fiberglass sleeve and the abutment so that the fiberglass sleeve and the abutment are connected and form a whole;

[0009] A position-limiting support assembly is used to abut against the supporting connection assembly so that it is in contact with any abutment plane to limit the position of the connection assembly;

[0010] The connecting assembly includes a transverse steel plate and a channel steel. The transverse steel plate is horizontally arranged on the side of the fiberglass sleeve away from the abutment, and the transverse steel plate is fixedly connected to the fiberglass sleeve. The channel steel is vertically arranged on the side of the transverse steel plate away from the fiberglass sleeve, and the channel steel is fixedly connected to the transverse steel plate.

[0011] By adopting the above technical solution, the fiberglass sleeve has the characteristics of high strength, corrosion resistance and light weight. It can increase the cross-section of the abutment without increasing too much deadweight, so that the abutment can better resist external loads and extend the service life of the bridge. At the same time, it provides convenience for subsequent maintenance and reinforcement, and improves the problem of large thickness of the existing abutment reinforcement. The connection component can ensure that the connection between the fiberglass sleeve and the abutment is tight and stable, avoiding the loosening of the fiberglass sleeve due to external force. The limiting support component can limit the position of the connection component to ensure that the reinforcement thickness remains consistent and the appearance is not deformed during the pouring and solidification of the filling material. The transverse steel plate can provide transverse support and positioning functions for the fiberglass sleeve. The channel steel is fixedly connected to the transverse steel plate, which can further enhance the overall strength and stability of the limiting support component. The channel steel can withstand large longitudinal and transverse loads, thereby providing additional support and fixing for the transverse steel plate, forming a stable limiting frame, limiting the freedom of the fiberglass sleeve in multiple directions, and ensuring that it always maintains a close fit with the abutment during the reinforcement process.

[0012] Preferably, the connecting assembly includes a stainless steel bolt, one end of which passes through the channel steel, the transverse steel plate and the fiberglass sleeve in sequence and is connected to the abutment in a post-anchoring manner.

[0013] By adopting the above technical solution, stainless steel bolts tightly connect the limit support assembly, fiberglass sleeve and abutment together to form an integral structure; the high strength and good corrosion resistance of stainless steel bolts enable them to work stably for a long time under harsh environmental conditions, ensuring the firmness and durability of the connection parts; at the same time, the threaded connection method provides reliable tensile and shear resistance, which can effectively transfer loads and enhance bearing capacity.

[0014] Preferably, the connection assembly further includes a limiter, which is fixedly arranged on a side of the fiberglass sleeve close to the abutment, and is used to be fixedly connected to the abutment to limit the position of the fiberglass sleeve relative to the abutment.

[0015] By adopting the above technical solution, the limiter can limit the position of the fiberglass sleeve relative to the abutment, preventing the fiberglass sleeve from being displaced or deformed during construction or use.

[0016] Preferably, the connection assembly further includes a filling material, the filling material includes a cement-based grouting material and an underwater epoxy grouting material, and the filling material is disposed between the fiberglass sleeve and the abutment to fill the gap between the fiberglass sleeve and the abutment.

[0017] By adopting the above technical solution, the filling material can fill the gap between the fiberglass sleeve and the abutment, ensuring a close combination between the two, eliminating possible gaps and weak links, and ensuring the transfer of loads, thereby enhancing the integrity and stability of the entire reinforced structure and preventing structural damage caused by local stress concentration; underwater cement-based grouting materials have excellent durability and impermeability, and can maintain good performance in long-term underwater or humid environments, preventing moisture from penetrating into the structure, thereby extending the service life of the abutment; underwater epoxy grouting materials have excellent properties such as high strength, wear resistance, durability, and high adhesion. At the same time, they also have good corrosion resistance such as impermeability, frost resistance, acid resistance, alkali resistance, and salt resistance. There is no need to build cofferdams or drainage equipment, and they can be directly constructed underwater, which is suitable for various complex workpiece conditions.

[0018] Preferably, the connecting assembly also includes a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively arranged at the top and bottom of the fiberglass sleeve, the first connecting part is fixedly connected to the abutment and the fiberglass sleeve to close the gap between the top of the fiberglass sleeve and the abutment, and the second connecting part is fixedly connected to the abutment, the fiberglass sleeve and the riverbed to close the gap between the bottom of the fiberglass sleeve and the abutment.

[0019] By adopting the above technical solution, the first connecting part and the second connecting part are physically connected to achieve a sealing effect, closing the gap between the fiberglass sleeve and the abutment, preventing moisture, air or other harmful substances from entering the gap, thereby avoiding structural corrosion, leakage or local stress concentration problems caused by the existence of the gap.

[0020] Preferably, the limiting support assembly includes a limiting rod, both ends of which abut against the channel steel and any plane respectively to limit the position of the connecting assembly relative to the abutment.

[0021] By adopting the above technical solution, the limiting rod of the limiting support assembly abuts against the channel steel and any plane, so that the limiting support assembly and the connecting assembly can form an integral whole, provide additional support for the connecting assembly, and limit the position of the channel steel in the connecting assembly, thereby limiting the position of the connecting assembly, ensuring the stability of the position of the connecting assembly during the pouring and solidifying filling material, thereby ensuring that the reinforcement thickness remains consistent and the appearance is not deformed.

[0022] Preferably, the limiting support assembly further includes a supporting steel plate, which is fixedly arranged in the recess of the channel steel, and is used to abut against the limiting rod to limit the position of the limiting rod.

[0023] By adopting the above technical solution, the supporting steel plate can abut against the limiting rod, thereby ensuring the stability of the position of the limiting rod and preventing it from being displaced during the force application process.

[0024] Preferably, the limiting rod includes a supporting steel pipe and an adjustable bolt, the adjustable bolt abuts against the supporting steel plate and the channel steel, and the supporting steel pipe is threadedly connected to the adjustable bolt to change the length of the limiting rod after the supporting steel pipe rotates relative to the adjustable bolt.

[0025] By adopting the above technical solution, the limit rod can adjust the effective length of the supporting steel pipe through the adjustable bolt during the installation process, ensuring that the supporting steel pipe is in close contact with the channel steel, thereby avoiding unstable support caused by construction errors.

[0026] In a second aspect, the present application provides a method for increasing the cross-section and reinforcing a bridge abutment by wrapping a single-sided glass fiber sleeve, which adopts the following technical solution:

[0027] A method for enlarging the cross-section and reinforcing a bridge abutment by wrapping a single-sided abutment with a glass fiber sleeve comprises the following steps:

[0028] S1, install the stopper, fiberglass sleeve, transverse steel plate, channel steel, stainless steel bolts and the second connection part on the outer wall of the abutment;

[0029] S2, install the limit support assembly and place the filling material between the fiberglass sleeve and the abutment;

[0030] S3, set the first connecting part and remove the limiting support assembly.

[0031] By adopting the above technical solution, the fiberglass sleeve can increase the cross-section of the abutment without increasing too much deadweight, so that the abutment can better resist external loads and extend the service life of the bridge. At the same time, it provides convenience for subsequent maintenance and reinforcement, and improves the problem of large thickness of the existing abutment reinforcement; the connection component can ensure that the connection between the fiberglass sleeve and the abutment is tight and stable, avoiding the loosening of the fiberglass sleeve due to external force; the limit support component can limit the position of the connection component to ensure that the reinforcement thickness remains consistent and the appearance is not deformed during the pouring and solidification of the filling material.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The fiberglass sleeve is characterized by high strength, corrosion resistance, and light weight. It can increase the cross-section of the abutment without increasing its own weight, enabling the abutment to better resist external loads and extend the service life of the bridge. It also facilitates subsequent maintenance and reinforcement, improving the problem of large thickness of the existing abutment reinforcement. The connection component can ensure a tight and stable connection between the fiberglass sleeve and the abutment, preventing the fiberglass sleeve from loosening due to external forces. The limit support component can limit the position of the connection component, ensuring that the reinforcement thickness remains consistent and the appearance does not deform during the pouring and solidification of the filling material.

[0034] 2. The transverse steel plate can provide lateral support and positioning for the fiberglass sleeve. The fixed connection between the channel steel and the transverse steel plate can further enhance the overall strength and stability of the limit support assembly. The channel steel can withstand large longitudinal and transverse loads, thereby providing additional support and fixation for the transverse steel plate, forming a stable limit frame, limiting the freedom of the fiberglass sleeve in multiple directions, and ensuring that it always maintains a close fit with the abutment during the reinforcement process.

[0035] 3. The fiberglass sleeve can increase the cross-section of the abutment without increasing too much deadweight, so that the abutment can better resist external loads and extend the service life of the bridge. At the same time, it provides convenience for subsequent maintenance and reinforcement, and improves the problem of large thickness of the existing abutment reinforcement; the connection component can ensure that the connection between the fiberglass sleeve and the abutment is tight and stable, avoiding the loosening of the fiberglass sleeve due to external force; the limit support component can limit the position of the connection component to ensure that the reinforcement thickness remains consistent and the appearance is not deformed during the pouring and solidification of the filling material. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of the abutment in an embodiment of the present application, in which a single side of the abutment is covered with a glass fiber sleeve to increase the cross-section and reinforce the structure;

[0037] Figure 2 It is along Figure 1 Cross-sectional view of AA;

[0038] Figure 3 yes Figure 2 Enlarged view of middle B;

[0039] Figure 4 This is a schematic diagram of the construction of a structure in which a single side of an abutment is covered with a fiberglass sleeve to increase the cross-section and reinforce it in an embodiment of the present application;

[0040] Figure 5 yes Figure 4 Enlarged view of middle C;

[0041] Figure 6 This is a structural schematic diagram of a structure in which a single side of an abutment is covered with a fiberglass sleeve to increase the cross-section and reinforce it in another embodiment of the present application.

[0042] Explanation of the accompanying reference numerals: 1. Fiberglass sleeve; 2. Connection assembly; 21. Horizontal steel plate; 22. Channel steel; 23. Limiter; 24. Filling material; 25. First connection part; 26. Second connection part; 27. Stainless steel bolt; 3. Limit support assembly; 31. Limit rod; 311. Support steel pipe; 312. Adjustable bolt; 32. Support steel plate; 4. Abutment; 5. Pier. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-6 This application is described in further detail.

[0044] The embodiment of the present application discloses a structure in which a single side of an abutment is covered with a glass fiber sleeve to increase the cross section and strengthen the abutment. Figure 1 and Figure 2 The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement includes a glass fiber sleeve 1, a connection component 2 and a limit support component 3.

[0045] like Figure 1 As shown, in the embodiment of the present application, the fiberglass sleeve 1 is fixedly connected to one side of the abutment 4 through the connecting component 2, especially to the water-facing surface of the abutment 4, so as to increase the cross-section of the abutment 4; the fiberglass sleeve 1 has the characteristics of high strength, corrosion resistance and light weight, and can increase the cross-section of the abutment 4 without increasing too much dead weight, so that the abutment 4 can better resist external loads, extend the service life of the bridge, and provide convenience for subsequent maintenance and reinforcement, thereby improving the problem of large reinforcement thickness of the existing abutment 4.

[0046] like Figure 2 and Figure 3 As shown, the fiberglass sleeve 1 and the abutment 4 are fixedly connected in the connecting component 2 so that the fiberglass sleeve 1 is connected to the abutment 4 and forms a whole. In the embodiment of the present application, the connecting component 2 includes a transverse steel plate 21, a channel steel 22, a stainless steel bolt 27, a limiter 23, a first connecting part 25 and a second connecting part 26; the connecting component 2 can ensure that the connection between the fiberglass sleeve 1 and the abutment 4 is tight and stable, and avoid the loosening of the fiberglass sleeve 1 due to external force.

[0047] Please refer to Figure 3The cross steel plate 21 is horizontally arranged on the side of the fiberglass sleeve 1 away from the abutment 4, and the cross steel plate 21 is fixedly connected to the fiberglass sleeve 1. The channel steel 22 is vertically arranged on the side of the cross steel plate 21 away from the fiberglass sleeve 1, and the channel steel 22 is fixedly connected to the cross steel plate 21. The cross steel plate 21 can provide lateral support and positioning functions for the fiberglass sleeve 1, and the channel steel 22 is fixedly connected to the cross steel plate 21, which can further enhance the overall strength and stability of the limit support assembly 3. The channel steel 22 can withstand larger longitudinal and transverse loads, thereby providing additional support and fixing for the cross steel plate 21, forming a stable limit frame, limiting the freedom of the fiberglass sleeve 1 in multiple directions, and ensuring that it always maintains a close fit with the abutment 4 during the reinforcement process; exemplarily, there are several cross steel plates 21 and channel steels 22, and several cross steel plates 21 and several channel steels 22 are distributed on the side of the fiberglass sleeve 1 away from the abutment 4.

[0048] In an embodiment of the present application, one end of the stainless steel bolt 27 passes through the channel steel 22, the transverse steel plate 21 and the fiberglass sleeve 1 in sequence and is connected to the abutment 4 by rear anchoring. The limiter 23 is fixedly arranged on the side of the fiberglass sleeve 1 close to the abutment 4, and the limiter 23 is fixedly connected to the abutment 4 to limit the position of the fiberglass sleeve 1 relative to the abutment 4; illustratively, a plurality of stainless steel bolts 27 are provided.

[0049] Specifically, the stainless steel bolts 27 tightly connect the limit support assembly 3, the fiberglass sleeve 1 and the abutment 4 together to form an integral structure; the high strength and good corrosion resistance of the stainless steel bolts 27 enable them to work stably for a long time under harsh environmental conditions, ensuring the firmness and durability of the connection parts; at the same time, the threaded connection method provides reliable tensile and shear resistance, which can effectively transfer loads and enhance the bearing capacity; the limiter 23 can limit the position of the fiberglass sleeve 1 relative to the abutment 4 to prevent the fiberglass sleeve 1 from being displaced or deformed during construction or use.

[0050] like Figure 3 As shown, the filling material 24 includes cement-based grouting material and underwater epoxy grouting material. The filling material 24 is arranged between the fiberglass sleeve 1 and the abutment 4 to fill the gap between the fiberglass sleeve 1 and the abutment 4; the first connecting part 25 and the second connecting part 26 are respectively arranged at the top and bottom of the fiberglass sleeve 1, and the first connecting part 25 is fixedly connected to the abutment 4 and the fiberglass sleeve 1 to close the gap between the top of the fiberglass sleeve 1 and the abutment 4, and the second connecting part 26 is fixedly connected to the abutment 4, the fiberglass sleeve 1 and the riverbed to close the gap between the bottom of the fiberglass sleeve 1 and the abutment 4.

[0051] Exemplarily, cement-based grouting material is filled between the fiberglass sleeve 1 and the abutment 4; the filling material 24 can fill the gap between the fiberglass sleeve 1 and the abutment 4, ensuring a tight bond between the two, eliminating possible gaps and weak links, and ensuring the transfer of loads, thereby enhancing the integrity and stability of the entire reinforced structure, and preventing structural damage caused by local stress concentration; underwater cement-based grouting material has excellent durability and impermeability, and can maintain good performance in long-term underwater or humid environments, preventing moisture from penetrating into the structure, thereby extending the service life of the abutment 4; underwater epoxy grouting material has excellent properties such as high strength, wear resistance, durability, and high adhesion. It also has good corrosion resistance such as impermeability, frost resistance, acid resistance, alkali resistance, and salt resistance. It does not require the construction of cofferdams or drainage equipment, and can be directly constructed underwater, making it suitable for various complex workpiece conditions.

[0052] For example, the first connection part 25 in the embodiment of the present application is sealed at the top by building a slope with underwater epoxy capping glue, and the second connection part 26 is underwater epoxy capping glue. The bottom of the second connection part 26 is fixedly connected to the concrete riverbed, and the cross-section of the second connection part 26 is a right-angled trapezoid; the first connection part 25 and the second connection part 26 are physically connected to achieve a sealing effect, closing the gap between the fiberglass sleeve 1 and the abutment 4, preventing moisture, air or other harmful substances from entering the gap, thereby avoiding structural corrosion, leakage or local stress concentration caused by the existence of the gap.

[0053] like Figure 4 and Figure 5 As shown, the limiting support assembly 3 includes a limiting rod 31 and a supporting steel plate 32. The two ends of the limiting rod 31 are respectively in contact with the channel steel 22 and any plane to limit the position of the connecting assembly 2 relative to the abutment 4. The contact between the limiting rod 31 of the limiting support assembly 3 and the channel steel 22 and any plane can make the limiting support assembly 3 and the connecting assembly 2 form a whole, provide additional support for the connecting assembly 2, and limit the position of the channel steel 22 in the connecting assembly 2, thereby limiting the position of the connecting assembly 2, ensuring the stability of the position of the connecting assembly 2 during the pouring and solidifying of the filling material 24, thereby ensuring the addition. The thickness remains consistent and the appearance does not deform; the support steel plate 32 is fixedly set in the depression of the channel steel 22, and the support steel plate 32 is used to abut against the limit rod 31 to limit the position of the limit rod 31, thereby ensuring the stability of the position of the limit rod 31 and preventing it from being displaced during the force process; exemplarily, there are several limit rods 31 and support steel plates 32; exemplarily, the limit rod 31 of the limit support assembly 3 abuts against the support steel plate 32, the channel steel 22 and the adjacent bridge pier 5; optionally, the limit rod 31 of the limit support assembly 3 can also abut against the support steel plate 32, the channel steel 22 and the riverbed.

[0054] In the examples of this application, please refer to Figure 5The limiting rod 31 includes a supporting steel pipe 311 and an adjustable bolt 312. The adjustable bolt 312 abuts against the supporting steel plate 32 and the channel steel 22. The supporting steel pipe 311 is threadedly connected to the adjustable bolt 312 to change the length of the limiting rod 31 after the supporting steel pipe 311 rotates relative to the adjustable bolt 312. During the installation process, the limiting rod 31 can adjust the effective length of the supporting steel pipe 311 through the adjustable bolt 312 to ensure that the supporting steel pipe 311 is in close contact with the channel steel 22, thereby avoiding unstable support caused by construction errors.

[0055] It should be noted that the components or structures in this application are all processed and formed on land, and can be installed and / or assembled by hoisting into the water and performing underwater operations.

[0056] After the filling material 24 solidifies or hardens, or after the entire construction operation is completed, the limit support assembly 3 can be removed to prevent the limit support assembly 3 from being impacted by water flow during flood season and transmitting the impact force to the fiberglass sleeve 1, thereby ensuring the working stability of the fiberglass sleeve 1.

[0057] For example, please refer to Figure 6 In another embodiment of the present application, the fiberglass sleeve 1 is arranged on the water-facing surface of the abutment 4, and both sides of the fiberglass sleeve 1 extend and cover the side surfaces on both sides of the water-facing surface of the abutment 4. The part of the fiberglass sleeve 1 covering the side surfaces on both sides of the water-facing surface of the abutment 4 is connected to the abutment 4 through corresponding transverse steel plates 21, channel steels 22, stainless steel bolts 27, limiters 23, first connecting parts 25 and second connecting parts 26 and other structures and / or components.

[0058] The present application also discloses a method for enlarging the cross-section of an abutment by wrapping a single side of the abutment with a glass fiber sleeve, comprising the following steps:

[0059] S1, set the limiter 23, fiberglass sleeve 1, horizontal steel plate 21, channel steel 22, and stainless steel bolts 27 on the outer wall of the abutment 4.

[0060] In this step, the fiberglass sleeve 1 is installed and secured with a stopper 23, a horizontal steel plate 21, a channel steel 22, and stainless steel bolts 27. The horizontal steel plate 21 and channel steel 22 are formed on land, hoisted into the water, and manually moved to the designed support position. The underwater structure is assembled and / or installed by frogmen underwater. The horizontal steel plate 21 and channel steel 22 can be installed by hanging and lowering them into the water with hooks and ropes at both ends of the horizontal steel plate 21 or channel steel 22, and then installed by frogmen underwater.

[0061] S2, installing the limiting support assembly 3, and placing the filling material 24 between the fiberglass sleeve 1 and the abutment 4.

[0062] In this step, in order to prevent the mold from expanding when pouring underwater grouting material, the position of the connecting component 2 is limited by the limiting support component 3 to ensure that the reinforcement thickness remains consistent and the appearance is not deformed during the pouring and solidification process of the filling material 24.

[0063] S3, set the first connecting part 25 and the second connecting part 26, and remove the limiting support assembly 3.

[0064] In this step, the position-limiting support assembly 3 can be removed only after the filling material 24 is solidified; illustratively, only the position-limiting rod 31 of the position-limiting support assembly 3 can be removed.

[0065] Specifically, underwater operations do not require cofferdams to assist in construction, and cofferdams have little impact on site requirements, construction period and the environment. The fiberglass sleeve 1 can increase the cross-section of the abutment 4 without increasing too much deadweight, and the thickness after reinforcement is small, which has little impact on the appearance. The impact on rivers, drainage and flood discharge capacity, and waterway transportation is negligible and can be regarded as no impact; and, the present method and the corresponding structure are used to enclose the abutment 4 on one side with the fiberglass sleeve 1 to increase the cross-section and reinforce it. The reinforcement method is simple and the cost is low; the connecting component 2 can ensure that the connection between the fiberglass sleeve 1 and the abutment 4 is tight and stable, and avoid the loosening of the fiberglass sleeve 1 due to external force; the limiting support component 3 can limit the position of the connecting component 2 to ensure that the reinforcement thickness remains consistent and the appearance is not deformed during the pouring and solidification of the filling material 24.

[0066] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A structure in which a single side of an abutment is covered with a glass fiber sleeve to increase the cross section and reinforce it, characterized in that: include: A glass fiber sleeve (1) is fixedly connected to the abutment (4) and is used to increase the cross section of the abutment (4) and improve the anti-scouring capability of the abutment surface; A connecting assembly (2) is used for fixedly connecting the glass fiber sleeve (1) and the abutment (4) so that the glass fiber sleeve (1) and the abutment (4) are connected and form a whole; A position limiting support component (3) is used to abut against the supporting connection component (2) so as to make it contact with any abutment plane to limit the position of the connection component (2); The connecting assembly (2) includes a transverse steel plate (21) and a channel steel (22), wherein the transverse steel plate (21) is transversely arranged on a side of the glass fiber sleeve (1) away from the abutment (4), and the transverse steel plate (21) is fixedly connected to the glass fiber sleeve (1), and the channel steel (22) is vertically arranged on a side of the transverse steel plate (21) away from the glass fiber sleeve (1), and the channel steel (22) is fixedly connected to the transverse steel plate (21); The connecting assembly (2) further comprises a stainless steel bolt (27), which is connected to the abutment (4) by sequentially passing through the channel steel (22), the transverse steel plate (21) and the glass fiber sleeve (1) in a post-anchoring manner; The connection assembly (2) further includes a stopper (23), which is fixedly arranged on a side of the glass fiber sleeve (1) close to the abutment (4). The stopper (23) is used to be fixedly connected to the abutment (4) to limit the position of the glass fiber sleeve (1) relative to the abutment (4) to achieve uniform filling inside. The limiting support assembly (3) includes a limiting rod (31), and both ends of the limiting rod (31) abut against the channel steel (22) and any plane respectively, so as to limit the position of the connecting assembly (2) relative to the abutment (4), thereby making the connection between the abutment (4) and the connecting assembly (2) more stable; The limiting support assembly (3) further comprises a supporting steel plate (32), which is fixedly arranged in a recess of the channel steel (22). The supporting steel plate (32) is used to abut against the limiting rod (31) to achieve vertical constraint of the limiting rod (31).

2. The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement according to claim 1 is characterized by: The connection assembly (2) further includes a filling material (24), the filling material (24) including a cement-based grouting material and an underwater epoxy grouting material, and the filling material (24) is arranged between the fiberglass sleeve (1) and the abutment (4) to fill the gap between the fiberglass sleeve (1) and the abutment (4).

3. The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement according to claim 2 is characterized by: The connecting assembly (2) further comprises a first connecting portion (25) and a second connecting portion (26), the first connecting portion (25) and the second connecting portion (26) being respectively arranged at the top and the bottom of the fiberglass sleeve (1), the first connecting portion (25) being fixedly connected to the abutment (4) and the fiberglass sleeve (1) to close the gap between the top of the fiberglass sleeve (1) and the abutment (4), and the second connecting portion (26) being fixedly connected to the abutment (4), the fiberglass sleeve (1) and the riverbed to close the gap between the bottom of the fiberglass sleeve (1) and the abutment (4).

4. The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement according to claim 3 is characterized by: The limiting support assembly (3) includes a limiting rod (31), and both ends of the limiting rod (31) are respectively in contact with the channel steel (22) and any plane to limit the position of the connecting assembly (2) relative to the abutment (4), so that the connection between the abutment (4) and the connecting assembly (2) is more stable.

5. The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement according to claim 4 is characterized by: The limiting support assembly (3) further comprises a supporting steel plate (32), which is fixedly arranged in a recess of the channel steel (22). The supporting steel plate (32) is used to abut against the limiting rod (31) to achieve vertical constraint of the limiting rod (31).

6. The structure of the abutment with a single-sided glass fiber sleeve for increased cross-section reinforcement according to claim 5 is characterized by: The limiting rod (31) comprises a supporting steel pipe (311) and an adjustable bolt (312). The adjustable bolt (312) abuts against the supporting steel plate (32) and the channel steel (22). The supporting steel pipe (311) is threadedly connected to the adjustable bolt (312) so that the length of the limiting rod (31) can be changed after the supporting steel pipe (311) rotates relative to the adjustable bolt (312).

7. A method for enlarging the cross-section of an abutment by enclosing a glass fiber sleeve on one side of the abutment, using the structure of enlarging the cross-section of an abutment by enclosing a glass fiber sleeve on one side of the abutment according to claim 6, characterized in that: The steps include: A stopper (23), a glass fiber sleeve (1), a transverse steel plate (21), a channel steel (22), and a stainless steel bolt (27) are arranged on the outer wall of the abutment (4); Install the limiting support assembly (3), and place the filling material (24) between the fiberglass sleeve (1) and the abutment (4); A first connecting portion (25) and a second connecting portion (26) are provided, and the position-limiting support assembly (3) is removed.

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