Carbon fiber sleeve underwater pile foundation pier column reinforcing structure

Abstract

The utility model discloses a kind of carbon fiber sleeve underwater pile foundation pier column reinforcing structure, including support frame, reinforcing cylinder, sealing sleeve, the reinforcing cylinder is formed by two symmetrical reinforcing plates by bolt connection, the outer wall of reinforcing cylinder upper portion is connected with multiple support frames by bolt, support frame is Z-shaped, and its upper end is bolted on pier column, sealing sleeve is bolted on pier column, and the upper portion of sealing sleeve is inserted in reinforcing cylinder, cement-based grouting material is grouted in the gap between reinforcing cylinder and pier column. According to the size required by reinforcing design, carbon fiber composite material plate is made into half, that is, two reinforcing plates, after arriving at the scene, two reinforcing plates are directly installed on pile foundation pier column, and bolt fastening is used in lap position, without bending a whole reinforcing plate, the bending amplitude of plate is reduced, effectively prevent the problem that plate is broken due to bending amplitude being too large.

Description

Technical Field

[0001] This utility model relates to the field of reinforcement structure technology, specifically a carbon fiber sleeve underwater pile foundation pier reinforcement structure. Background Technology

[0002] Currently, fiber sleeves used for underwater pile foundation pier reinforcement include glass fiber sleeves and basalt fiber sleeves. Both types of sleeves have weak aging resistance and short service life for reinforcement.

[0003] The main problems with this type of reinforcement structure are as follows: (1) Conventional composite panels are usually used. When using them, the panels are bent and wrapped around the pile foundation piers that need to be reinforced. The overlap is fixed with special resin and special fasteners. However, the entire panel needs to be bent, which requires a large bending force. Moreover, the bending degree of the panel increases, making the panel easy to break. (2) Grouting material needs to be filled between the fiber sleeve and the pier. However, there is no skeleton between the grouting materials, resulting in low structural strength. (3) Before grouting, a sealing component needs to be installed at the bottom of the fiber sleeve. However, the current sealing component is not stable. After grouting, the sealing component is easy to fall off as the weight increases. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a carbon fiber sleeve underwater pile foundation pier reinforcement structure to solve the problem that current composite panels are prone to breakage due to large bending degrees when bent.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A carbon fiber sleeve underwater pile foundation pier reinforcement structure includes a support frame, a reinforcement cylinder, and a sealing sleeve. The reinforcement cylinder is composed of two symmetrical reinforcement plates connected by bolts. Multiple support frames are bolted to the upper outer wall of the reinforcement cylinder. The support frames are Z-shaped and their upper ends are bolted to the pier. The sealing sleeve is bolted to the pier, and the upper part of the sealing sleeve is inserted into the reinforcement cylinder. The gap between the reinforcement cylinder and the pier is filled with cement-based grout.

[0007] Preferably, the reinforcing plate is connected to two sides with first mounting ears, and the first mounting ears are provided with first screw holes.

[0008] In the above technical solution, after the two reinforcing plates are joined together, the first mounting ears on the two reinforcing plates are fixed by bolts, thereby realizing the connection between the two reinforcing plates.

[0009] Preferably, the sealing sleeve is composed of two symmetrical sealing units connected by bolts. The sealing unit includes a fixing plate, second mounting ears connected to both sides of the fixing plate, a connecting plate connected to the lower end of the fixing plate, and a sealing plug connected to the upper end of the fixing plate. The second mounting ears have second screw holes, and the connecting plate has third screw holes. The connecting plate is bolted to the pier. The diameter of the fixing plate is larger than the diameter of the sealing plug. After the two sealing units are installed on the pier, the connection between the two sealing plugs is bonded with sealant. The sealing plug is glued inside the reinforcing cylinder with sealant, and the lower end of the reinforcing cylinder is glued to the fixing plate with sealant.

[0010] In the above technical solution, before installing the reinforcing cylinder, the two sealing units are first installed on the pier with bolts to connect the two sealing units. Then, the reinforcing plate is installed on the pier, and the sealing plug is inserted into the reinforcing cylinder. At the same time, the reinforcing cylinder is placed on the fixing plate. On the one hand, the sealing plug can play a role, and on the other hand, the sealing plug is fixed to the pier with screws to prevent it from falling off.

[0011] Preferably, the inner wall of the reinforcing plate is fixed with a plurality of connecting sleeves arranged in an array. Support rods are connected to the connecting sleeves by screws. The inner end of the support rods abuts against the pier. Vertical rods are bound to the support rods in the same vertical column by steel ropes, and horizontal rods are bound to the support rods in the same horizontal row by steel ropes. The horizontal and vertical rods form a grid.

[0012] In the above technical solution, before installing the reinforcing plate, support rods can be selectively installed inside the connecting sleeve, and then the vertical and horizontal rods are fixed to the support rods to form a grid. After injecting cement-based grout, the overall structural strength can be improved.

[0013] Preferably, the reinforcing cylinder, the fixing plate, the connecting plate, the second mounting ear, the connecting sleeve, the support rod, the horizontal bar, and the vertical bar are all made of carbon fiber reinforced epoxy resin composite material, the support frame is made of stainless steel, and the sealing plug is made of polyurethane sealant.

[0014] The above-mentioned technical solution, carbon fiber reinforced epoxy resin composite material, has the highest specific strength and specific modulus among existing engineering materials. The reinforced structure made from it is lightweight, has strong aging resistance, high mechanical properties, and long service life, which is significantly better than glass fiber and basalt fiber.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) Make carbon fiber composite material plates into two pieces according to the required dimensions of the reinforcement design. After arriving at the site, install the two reinforcement plates directly on the pile foundation pier. Use bolts to tighten the overlap position. There is no need to bend the whole reinforcement plate, which reduces the bending range of the plate and effectively prevents the plate from breaking due to excessive bending.

[0017] (2) First, install the sealing sleeve on the pile foundation pier, and then install the reinforcing cylinder on the pile foundation pier. The bottom of the reinforcing cylinder is sealed by the sealing sleeve, and the sealing sleeve is fixed to the pile foundation pier by bolts, which improves the stability of the structure. When the grouting material increases, the sealing sleeve is not easy to fall off.

[0018] (3) Install support rods on the inner wall of the reinforcing plate. Vertical and horizontal rods are installed on the support rods to form a carbon fiber grid. After the cement-based grout dries, the strength of the overall structure is improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a cross-sectional view of the present invention installed on a pile foundation pier.

[0022] Figure 4 This is a top view of the present invention;

[0023] In the diagram: 1-support frame, 2-reinforcing cylinder, 201-reinforcing plate, 202-first mounting ear, 3-sealing sleeve, 301-fixing plate, 302-second mounting ear, 303-connecting plate, 304-sealing plug, 4-cement-based grouting material, 5-connecting sleeve, 6-support rod, 7-vertical rod, 8-horizontal rod, 9-pier column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-4A carbon fiber sleeve underwater pile foundation pier reinforcement structure includes a support frame 1, a reinforcement cylinder 2, and a sealing sleeve 3. The reinforcement cylinder 2 includes two symmetrical reinforcement plates 201. The two sides of the reinforcement plates 201 are connected to first mounting ears 202. The first mounting ears 202 are provided with first screw holes. After the first mounting ears of the two reinforcement plates 201 overlap, the overlapping first mounting ears are connected by bolts to realize the fixed connection of the two reinforcement plates. The gap between the reinforcement cylinder 2 and the pier is filled with cement-based grout 4.

[0027] The upper outer wall of the reinforcing cylinder 2 is connected by multiple support frames 1 via bolts. There are two or more support frames 1, which are Z-shaped and whose upper ends are bolted to the pier column. The reinforcing cylinder is fixed to the pier column by the support frames 1, which can position the reinforcing cylinder.

[0028] The sealing sleeve 3 is composed of two symmetrical sealing units connected by bolts. The sealing unit includes a fixing plate 301, second mounting ears 302 connected to both sides of the fixing plate, a connecting plate 303 connected to the lower end of the fixing plate, and a sealing plug 304 connected to the upper end of the fixing plate. The second mounting ears 302 have a second screw hole, and the connecting plate 303 has a third screw hole. The connecting plate 303 is connected to the pier by bolts. The diameter of the fixing plate 301 is larger than the diameter of the sealing plug 304. After the two sealing units are installed on the pier, the connection between the two sealing plugs 304 is bonded with sealant. The sealing plug 304 is pasted inside the reinforcing cylinder 2 with sealant, and the lower end of the reinforcing cylinder 2 is pasted to the fixing plate 301 with sealant. The sealant used is polyurethane adhesive.

[0029] The reinforcing cylinder 2, the fixing plate 301, the connecting plate 303, and the second mounting ear 302 are all made of carbon fiber reinforced epoxy resin composite material, the support frame 1 is made of stainless steel, and the sealing plug 304 is made of polyurethane sealant. Carbon fiber reinforced epoxy resin composite material has the highest specific strength and specific modulus among existing engineering materials. The resulting reinforced structure is lightweight, has strong aging resistance, high mechanical properties, and a long service life, significantly superior to glass fiber and basalt fiber.

[0030] The installation method in this embodiment is as follows:

[0031] Based on the dimensions of the pier, the dimensions of the reinforcing plate and sealing unit are prefabricated. Upon arrival at the site, the sealing unit is first fixed to the pier using bolts and the first mounting lug. After the two sealing plugs are joined together, they are then bonded together with sealant, and sealant is applied to the outer wall of the sealing plug. Next, the support frame is installed on the reinforcing plate, and then the reinforcing plate is installed on the pier. The two reinforcing plates are then fixed together using the first mounting lug, so that the lower end of the reinforcing plate abuts against the fixed plate. At the same time, the sealing plug is bonded to the inner wall of the reinforcing plate with sealant. Then, the upper end of the support frame is fixed to the pier. Sealant is then applied to the contact area between the reinforcing plate and the fixed plate, thereby sealing the bottom of the reinforcing cylinder through the sealing sleeve. After the sealant dries, cement-based grout is poured into the upper end of the reinforcing cylinder to complete the installation.

[0032] In addition, the shape of the reinforcement plate is customized according to the shape of the pier. For example, if the pier is circular, the carbon fiber composite material plate is made into half of a circle according to the size required by the reinforcement design. After arriving at the site, the two semicircles are directly installed to cover the pile foundation pier. If it is square, it is made into a U-shape. After arriving at the site, the two U-shapes are overlapped and installed to cover the pile foundation pier.

[0033] Example 2

[0034] Based on Embodiment 1, the inner wall of the reinforcing plate 201 is fixed with multiple arrayed connecting sleeves 5. Support rods 6 are connected to the connecting sleeves 5 by screws. The inner ends of the support rods 6 abut against the pier. Vertical rods 7 are bound to the support rods 6 in the same vertical column by steel ropes, and horizontal rods 8 are bound to the support rods 6 in the same horizontal row by steel ropes, forming a grid. The connecting sleeves 5, support rods 6, horizontal rods 8, and vertical rods 7 are all made of carbon fiber reinforced epoxy resin composite material. The horizontal rods 8 and vertical rods 7 are elastic and bendable. Before installing the reinforcing plate, support rods 6 can be selectively installed in the connecting sleeves 5, and then the vertical rods 7 and horizontal rods 8 are fixed to the support rods 6 to form a carbon fiber grid. After injecting cement-based grout, the overall structural strength is improved.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber sleeve underwater pile foundation pier reinforcement structure, characterized in that: The device includes a support frame (1), a reinforcing cylinder (2), and a sealing sleeve (3). The reinforcing cylinder (2) includes two symmetrical reinforcing plates (201), which are connected by bolts. The upper outer wall of the reinforcing cylinder (2) is connected by bolts to multiple support frames (1). The support frames (1) are Z-shaped, and their upper ends are connected to the pier by bolts. The sealing sleeve (3) is connected to the pier by bolts, and the upper part of the sealing sleeve (3) is inserted into the reinforcing cylinder (2). The gap between the reinforcing cylinder (2) and the pier is filled with cement-based grout (4).

2. The carbon fiber sleeve underwater pile foundation pier reinforcement structure according to claim 1, characterized in that: The reinforcing plate (201) has first mounting ears (202) connected to both sides, and first screw holes are provided on the first mounting ears (202).

3. The carbon fiber sleeve underwater pile foundation pier reinforcement structure according to claim 2, characterized in that: The sealing sleeve (3) is composed of two symmetrical sealing units connected by bolts. The sealing unit includes a fixing plate (301), a second mounting ear (302) connected to both sides of the fixing plate, a connecting plate (303) connected to the lower end of the fixing plate, and a sealing plug (304) connected to the upper end of the fixing plate. The second mounting ear (302) has a second screw hole, and the connecting plate (303) has a third screw hole. The connecting plate (303) is connected to the pier by bolts. The diameter of the fixing plate (301) is larger than the diameter of the sealing plug (304). After the two sealing units are installed on the pier, the connection of the two sealing plugs (304) is bonded with sealant. The sealing plug (304) is bonded to the inside of the reinforcing cylinder (2) with sealant, and the lower end of the reinforcing cylinder (2) is bonded to the fixing plate (301) with sealant.

4. The carbon fiber sleeve underwater pile foundation pier reinforcement structure according to claim 3, characterized in that: The inner wall of the reinforcing plate (201) is fixed with a plurality of connecting sleeves (5) arranged in an array. The connecting sleeves (5) are connected with support rods (6) by screws. The inner end of the support rods (6) abuts against the pier. The support rods (6) in the same vertical column are bound with vertical rods (7) by steel ropes. The support rods (6) in the same horizontal row are bound with horizontal rods (8) by steel ropes. The horizontal rods (8) and vertical rods (7) form a grid.

5. The carbon fiber sleeve underwater pile foundation pier reinforcement structure according to claim 4, characterized in that: The reinforcing cylinder (2), the fixing plate (301), the connecting plate (303), the second mounting ear (302), the connecting sleeve (5), the support rod (6), the horizontal bar (8), and the vertical bar (7) are all made of carbon fiber reinforced epoxy resin composite material. The support frame (1) is made of stainless steel material, and the sealing plug (304) is made of polyurethane sealant.

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