Wedge-shaped prestress carbon fiber plate anchoring system

Abstract

The utility model relates to a wedge-shaped prestress carbon fiber plate anchoring system which is characterized by comprising a fixed end anchor plate, a tensioning end anchor plate, a carbon fiber plate and a tensioning wedge block. By arranging the fixed end anchor plate, the tensioning end anchor plate and the tensioning wedge block, firstly, the carbon fiber plate and the beam body are fixedly connected through the fixed end anchor plate and the tensioning end anchor plate, the tensioning wedge block exerts prestress on the carbon fiber plate by exerting external force, the tensioning anchoring system is simple in structure and convenient to install, and the purpose of shortening the construction period of bridge reinforcement is achieved; the mode that the tensioning wedge block is connected with the carbon fiber plate is adopted, the carbon fiber plate can be pushed to make contact with the beam body, the gap between the carbon fiber plate and the beam body is reduced, and the filling fullness of bonding glue between the carbon fiber plate and the beam body is guaranteed; in addition, when prestress is applied to the carbon fiber plate, the purpose that the carbon fiber plate is linearly stressed can be achieved by adopting the tensioning wedge block, and the carbon fiber plate is prevented from being split and damaged due to partial pulling.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a wedge-shaped prestressed carbon fiber plate anchoring system. Background Art

[0002] At present, with the passage of time, the bridges built in the early days of our country have basically reached their design life, and cracks have appeared in the main structure of the bridge. As time goes by, the cracks grow larger and the bearing capacity of the bridge decreases, causing the bridge to become a dangerous bridge. In order to increase the service life of the bridge, the main body of the bridge needs to be reinforced.

[0003] Existing reinforcement methods include external steel reinforcement, reinforcement by increasing the cross-section of components, reinforcement by adding support points, shotcrete reinforcement, reinforcement by gluing high-strength composite materials, and prestressed reinforcement. Among them, the reinforcement method of gluing high-strength composite materials often uses carbon fiber reinforcement materials, such as carbon fiber plates, carbon fiber cloth, and carbon fiber bars. CFRP plates are used more frequently. The carbon fiber material in the CFRP plates can minimize the change in the stress distribution of the reinforced structure, ensuring that the reinforced plate and the reinforced structure are subjected to force together. In order to improve the reinforcement effect of the reinforced plate, anchoring equipment is often set between the bridge body and the reinforced plate, and the anchoring equipment is used to apply prestress to the reinforced plate.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the existing anchoring equipment is complicated to operate and takes a long time to operate on site, resulting in a long bridge reinforcement construction period. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a wedge-shaped prestressed carbon fiber plate anchoring system, which can solve the problems of complex and redundant anchoring structures in general bridge construction and the large space occupied by the front structure of the carbon fiber plate tensioning structure.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a wedge-shaped prestressed carbon fiber plate anchoring system, the innovation of which is that it includes a fixed end anchor plate, a tensioning end anchor plate, a carbon fiber plate and a tensioning wedge;

[0007] The fixed end anchor plate has a rectangular plate-like structure, and a plurality of bolt connection holes are arranged on the fixed end anchor plate in a matrix shape; at least one carbon fiber plate end fixing station is provided on the surface of the fixed end anchor plate; the carbon fiber plate end fixing station includes a carbon fiber plate fixing groove and a block group; the block group includes a pair of block units and is arranged in an arc-shaped parallel manner at the edge of the carbon fiber plate fixing groove, and a gap is formed between the two block units to accommodate the carbon fiber plate passing through; the top of the block unit is provided with a bolt hole for installing a carbon fiber plate limit baffle above the gap;

[0008] The tensioning end anchor plate is a rectangular plate structure, and a plurality of bolt connection holes are arranged on the tensioning end anchor plate in a matrix shape; at least one carbon fiber plate end tensioning station is provided on the surface of the tensioning end anchor plate, and the carbon fiber plate end tensioning station includes a supporting steel plate, and the supporting steel plate is vertically arranged on the tensioning end anchor plate, and the side of the supporting steel plate is provided with a reinforcing rib and connected to the tensioning end anchor plate; a pair of threaded tie rod holes are provided on the supporting steel plate, and the supporting steel plate is connected to the tensioning wedge block through the threaded tie rod;

[0009] The carbon fiber plate has a fixed end and a tensioning end. The fixed end of the carbon fiber plate is provided with a fixing block, and the fixing block is arranged in the fixing groove of the carbon fiber plate, and the carbon fiber plate is arranged through the gap between the block units; the tensioning end of the carbon fiber plate is connected to the tensioning wedge.

[0010] The tensioning wedge block has a wedge block and a connecting plate arranged at the end of the wedge block, and a threaded pull rod hole is provided on the connecting plate. The threaded pull rod hole on the connecting plate is connected to the threaded pull rod hole on the supporting steel plate through a threaded pull rod; the wedge block is connected to the tensioning end of the carbon fiber plate.

[0011] Furthermore, the wedge block of the tensioning wedge block is embedded in a shell with two ends connected, and the shell is pressed tightly against the connecting plate. The tensioning end of the carbon fiber plate is also embedded in the shell, and a locking wedge block is provided between the tensioning end of the carbon fiber plate and the wedge block to ensure that the tensioning end of the carbon fiber plate is tensioned and locked with the shell during tensioning.

[0012] Furthermore, the carbon fiber plate end fixing station and the carbon fiber plate end tensioning station are arranged in a one-to-one correspondence.

[0013] Furthermore, a threaded rod accommodating groove is provided on the surface of the tensioning end anchor plate in the axial direction of the threaded rod hole.

[0014] The advantages of the present invention are:

[0015] 1) In the present invention, fixed-end anchor plates, tensioning-end anchor plates, and tensioning wedges are provided. The fixed-end anchor plates and tensioning-end anchor plates are first used to securely connect the carbon fiber plate to the beam body. The tensioning wedges apply prestress to the carbon fiber plate by applying external force. This tensioning anchoring system has a simple structure and is easy to install, thus shortening the construction period of the bridge reinforcement.

[0016] 2) The present invention adopts a method of connecting the carbon fiber plate with the tensioning wedge, which can push the carbon fiber plate into contact with the beam body, reduce the gap between the carbon fiber plate and the beam body, and ensure the fullness of the adhesive filling between the carbon fiber plate and the beam body; in addition, when the carbon fiber plate is prestressed, the use of the tensioning wedge can achieve the purpose of linear force on the carbon fiber plate, avoiding the carbon fiber plate from splitting and damage due to eccentric tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a diagram of a wedge-shaped prestressed carbon fiber plate anchoring system of the present utility model.

[0019] Figure 2 This is a structural diagram of a tensioning wedge block of a wedge-shaped prestressed carbon fiber plate anchoring system of the present invention. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] like Figure 1 Figure 2 The wedge-shaped prestressed carbon fiber plate anchoring system shown includes a fixed end anchor plate 1, a tensioning end anchor plate 2, a carbon fiber plate 3 and a tensioning wedge 4.

[0023] The fixed end anchor plate 1 has a rectangular plate structure, and a number of bolt connection holes are arranged in a matrix on the fixed end anchor plate 1; at least one carbon fiber plate end fixing station is provided on the surface of the fixed end anchor plate 1; the carbon fiber plate end fixing station includes a carbon fiber plate fixing groove 11 and a block group 12; the block group 12 includes a pair of block units and is arranged in an arc-shaped parallel manner at the edge of the carbon fiber plate fixing groove 11, and a gap is formed between the two block units to accommodate the carbon fiber plate passing through; a bolt hole is provided at the top of the block unit for installing a carbon fiber plate limit baffle above the gap.

[0024] The tensioning end anchor plate 2 has a rectangular plate structure, and a plurality of bolt connection holes are arranged in a matrix on the tensioning end anchor plate 2; at least one carbon fiber plate end tensioning station is provided on the surface of the tensioning end anchor plate 2, and the carbon fiber plate end tensioning station includes a supporting steel plate 21, and the supporting steel plate 21 is vertically arranged on the tensioning end anchor plate 2, and the side of the supporting steel plate 21 is provided with reinforcing ribs and connected to the tensioning end anchor plate 2; a pair of threaded pull rod holes are provided on the supporting steel plate 21, and the supporting steel plate 2 is connected to the tensioning wedge block 4 through a threaded pull rod 5.

[0025] The carbon fiber plate 3 has a fixed end and a tensioning end. The fixed end of the carbon fiber plate 3 is provided with a fixing block, and the fixing block is set at the fixing groove of the carbon fiber plate 3, and the carbon fiber plate 3 is set through the gap between the block units; the tensioning end of the carbon fiber plate 3 is connected to the tensioning wedge 4.

[0026] The tensioning wedge block 4 has a wedge block and a connecting plate arranged at the end of the wedge block, and a threaded pull rod hole is provided on the connecting plate. The threaded pull rod hole on the connecting plate is connected to the threaded pull rod hole on the supporting steel plate 21 through a threaded pull rod 5; the wedge block is connected to the tensioning end of the carbon fiber plate 3.

[0027] The wedge-shaped block of the tensioning wedge block 4 is embedded in a shell with two ends connected, and the shell is pressed tightly against the connecting plate. The tensioning end of the carbon fiber plate 3 is also embedded in the shell, and a locking wedge is set between the tensioning end of the carbon fiber plate 3 and the wedge block to ensure that the tensioning end of the carbon fiber plate 3 is tensioned and locked with the shell during tensioning.

[0028] The carbon fiber plate 3 end fixing station and the carbon fiber plate end tensioning station are set in one-to-one correspondence.

[0029] A threaded rod 5 accommodating groove is provided on the surface of the tensioning end anchor plate 2 in the axial direction of the threaded rod hole to ensure that the threaded rod 5 is arranged horizontally.

[0030] The working principle of the utility model is as follows: in the utility model, a fixed end anchor plate, a tensioning end anchor plate and a tensioning wedge are set, and the fixed end anchor plate and the tensioning end anchor plate are first used to fix the carbon fiber plate to the beam body, and the tensioning wedge applies prestress to the carbon fiber plate by applying external force. The tensioning anchoring system has a simple structure and is easy to install, thereby achieving the purpose of shortening the construction period of bridge reinforcement; the tensioning wedge is connected to the carbon fiber plate in the utility model, which can push the carbon fiber plate to contact with the beam body, reduce the gap between the carbon fiber plate and the beam body, and ensure the filling fullness of the adhesive between the carbon fiber plate and the beam body; in addition, when the carbon fiber plate is prestressed, the tensioning wedge is used to achieve the purpose of linear force on the carbon fiber plate, thereby avoiding splitting and damage of the carbon fiber plate due to eccentric tension.

[0031] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A wedge-shaped prestressed carbon fiber plate anchoring system, characterized by: It includes fixed end anchor plate, tension end anchor plate, carbon fiber plate and tension wedge; The fixed end anchor plate has a rectangular plate-like structure, and a plurality of bolt connection holes are arranged on the fixed end anchor plate in a matrix shape; at least one carbon fiber plate end fixing station is provided on the surface of the fixed end anchor plate; the carbon fiber plate end fixing station includes a carbon fiber plate fixing groove and a block group; the block group includes a pair of block units and is arranged in an arc-shaped parallel manner at the edge of the carbon fiber plate fixing groove, and a gap is formed between the two block units to accommodate the carbon fiber plate passing through; the top of the block unit is provided with a bolt hole for installing a carbon fiber plate limit baffle above the gap; The tensioning end anchor plate is a rectangular plate structure, and a plurality of bolt connection holes are arranged on the tensioning end anchor plate in a matrix shape; at least one carbon fiber plate end tensioning station is provided on the surface of the tensioning end anchor plate, and the carbon fiber plate end tensioning station includes a supporting steel plate, and the supporting steel plate is vertically arranged on the tensioning end anchor plate, and the side of the supporting steel plate is provided with a reinforcing rib and connected to the tensioning end anchor plate; a pair of threaded tie rod holes are provided on the supporting steel plate, and the supporting steel plate is connected to the tensioning wedge block through the threaded tie rod; The carbon fiber plate has a fixed end and a tensioning end. The fixed end of the carbon fiber plate is provided with a fixing block, and the fixing block is arranged in the fixing groove of the carbon fiber plate, and the carbon fiber plate is arranged through the gap between the block units; the tensioning end of the carbon fiber plate is connected to the tensioning wedge. The tensioning wedge block has a wedge block and a connecting plate arranged at the end of the wedge block, and a threaded pull rod hole is provided on the connecting plate. The threaded pull rod hole on the connecting plate is connected to the threaded pull rod hole on the supporting steel plate through a threaded pull rod; the wedge block is connected to the tensioning end of the carbon fiber plate.

2. The wedge-shaped prestressed carbon fiber plate anchoring system according to claim 1, characterized in that: The wedge-shaped block of the tensioning wedge is embedded in a shell with two ends connected, and the shell is pressed tightly against the connecting plate. The tensioning end of the carbon fiber plate is also embedded in the shell, and a locking wedge is provided between the tensioning end of the carbon fiber plate and the wedge-shaped block to ensure that the tensioning end of the carbon fiber plate is tensioned and locked with the shell during tensioning.

3. The wedge-shaped prestressed carbon fiber plate anchoring system according to claim 1, characterized in that: The carbon fiber plate end fixing station and the carbon fiber plate end tensioning station are arranged in a one-to-one correspondence.

4. The wedge-shaped prestressed carbon fiber plate anchoring system according to claim 1, characterized in that: A threaded rod accommodating groove is provided on the surface of the tensioning end anchor plate in the axial direction of the threaded rod hole.

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