Fiber reinforced composite material anchoring device and anchoring method for reinforcing concrete structure

Abstract

The present invention relates to a fiber-reinforced composite anchoring device for reinforcing concrete structures, characterized in that it includes a concrete base, a fiber composite material bonded to the surface of the concrete base, two groups of positioning grooves formed at the bottom of the concrete base, anchor plates installed on both sides of the inner walls of the positioning grooves, one side of the anchor plates having an arc surface, the anchor plates lifting the fiber composite material, and a support member installed between two adjacent groups of the anchor plates. The present invention adheres the fiber composite material to the surface of the concrete base with a fixing adhesive, the fiber composite material passes along the inner walls of the positioning grooves, the anchor plates lift the position where the fiber composite material passes, the support member is inserted from one side of the positioning groove, the position of the groove presses the position raised by the fiber composite material, the support member is laterally clamped in the installation groove, and the fiber composite material is squeezed, so that the fiber composite material can be tightened in the positioning groove to prevent it from detaching or deflecting, making the anchoring more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of anchoring devices, and in particular to a fiber reinforced composite anchoring device and an anchoring method thereof for reinforcing a concrete structure. Background Art

[0002] Fiber reinforced polymer (FRP) is a composite material formed by winding, molding, or pultrusion of reinforcing fiber materials, such as glass fiber, carbon fiber, and aramid fiber, with a matrix material. Common fiber reinforced composites are categorized by different reinforcing materials into glass fiber reinforced polymer (GFRP), carbon fiber reinforced polymer (CFRP), and aramid fiber reinforced polymer (AFRP). Fiber reinforced polymers for reinforcing concrete structures are currently the most commonly used reinforcement method for concrete structures. Debonding between FRP and concrete is the primary factor affecting the effectiveness of FRP reinforcement. Existing technologies for reinforcing concrete structures with FRP typically employ anchoring measures such as U-shaped hoops, mechanical anchoring, and mechanical-bonding hybrid anchoring to prevent or mitigate the effects of FRP debonding. U-shaped hoops have limited applicability and are also prone to premature debonding. To prevent FRP debonding and improve its tightness, fiber reinforced composite anchoring devices for reinforcing concrete structures have been designed to address this issue. Summary of the Invention

[0003] The object of the present invention is to provide a fiber reinforced composite material anchoring device and an anchoring method thereof for reinforcing a concrete structure.

[0004] In order to solve the above technical problems, the present invention provides a fiber-reinforced composite anchoring device for reinforcing concrete structures, characterized in that it includes a concrete base, the surface of the concrete base is bonded with a fiber composite material, two groups of positioning grooves are opened at the bottom of the concrete base, anchor plates are installed on both sides of the inner wall of the positioning groove, one side of the anchor plate has an arc surface, the anchor plate lifts the fiber composite material, a support member is installed between two adjacent groups of the anchor plates, and grooves matching the arc surface are provided on both sides of the support member, wherein the fiber composite material passes through between the anchor plate and the support member.

[0005] Furthermore, clamping grooves are provided on both sides of the inner wall of the positioning groove, and the ends of the anchor plates are installed in the clamping grooves.

[0006] Furthermore, a through hole is provided in the middle of the support member, a baffle is provided in the middle of the through hole, and the baffle is arranged obliquely, wherein the fiber composite material passes through the hole on one side of the baffle and exits from the other side of the baffle.

[0007] Furthermore, a support block is fixed on the top of the support member. After the support member is installed in the positioning groove, the top of the support block contacts the fiber composite material adhered in the positioning groove.

[0008] Furthermore, two groups of support blocks are provided, and each support block is in a prism shape.

[0009] Furthermore, the fiber composite material is bonded to the surface of the concrete base by a fixing adhesive, and the fixing adhesive is a mixture of epoxy resin and natural rubber.

[0010] Furthermore, after the end of the anchor plate is installed in the slot, the fixing agent fills the slot.

[0011] Furthermore, the support member and the anchor plate are made of hard metal wood or metal material.

[0012] The present invention also provides an anchoring method for a fiber reinforced composite anchoring device for reinforcing a concrete structure, comprising the following steps:

[0013] S1: Open a positioning groove on the concrete base, open a clamping groove in the positioning groove, and install the end of the anchor plate in the clamping groove;

[0014] S2: The fiber composite material is bonded to the surface of the concrete base by a fixing adhesive, the fiber composite material passes along the inner wall of the positioning groove, and the anchor plate lifts up the position where the fiber composite material passes.

[0015] S3: Insert the support member from one side of the positioning groove, squeeze the position of the groove protruding by the fiber composite material, and clamp the support member horizontally in the installation groove, and squeeze the fiber composite material at both ends to make it fit the anchor plate.

[0016] S4: The fiber composite material is passed through the perforation on one side of the baffle and out of the perforation on the other side of the baffle, and the fiber composite material is tightened to prevent it from falling off the support. At the same time, the top of the support block can support the fiber composite material and squeeze it to fit the inner wall of the positioning groove to prevent the fiber composite material from falling off the positioning groove.

[0017] The beneficial effects of the present invention are:

[0018] By bonding the fiber composite material to the surface of the concrete base with a fixing adhesive, the fiber composite material passes along the inner wall of the positioning groove, the anchor plate lifts up the position where the fiber composite material passes, and the support member is inserted from one side of the positioning groove. The position of the groove squeezes the position raised by the fiber composite material, and the support member is horizontally stuck in the installation groove to squeeze the fiber composite material. The fiber composite material can be tightened in the positioning groove to prevent it from detaching or deflecting, making the anchoring more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 It is a front view of a preferred embodiment of the present invention;

[0021] Figure 2 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 3 It is a front cross-sectional view of a preferred embodiment of a support member of the present invention.

[0023] In the picture:

[0024] 1. Concrete base; 11. Fiber composite material;

[0025] 2. Positioning groove; 21. Anchor plate; 22. Arc surface; 23. Card slot;

[0026] 3. Support member; 31. Groove; 32. Perforation; 33. Support block; 34. Baffle;

[0027] 4. Fixing glue. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and therefore only show components relevant to the present invention.

[0029] Example 1:

[0030] like Figure 1-3As shown, the fiber reinforced composite anchoring device for reinforcing concrete structures of the present invention includes a concrete base, the surface of the concrete base is bonded with a fiber composite material, the bottom of the concrete base is provided with two groups of positioning grooves, anchor plates are installed on both sides of the inner wall of the positioning groove, one side of the anchor plate has a curved surface, the anchor plate lifts the fiber composite material, a support member is installed between two adjacent groups of the anchor plates, and grooves matching the curved surface are provided on both sides of the support member, wherein the fiber composite material passes between the anchor plate and the support member, and card slots are provided on both sides of the inner wall of the positioning groove, and the end of the anchor plate is installed in the card slot.

[0031] A positioning groove is opened on the concrete base, a clamping groove is opened in the positioning groove, and the end of the anchor plate is installed in the clamping groove; at the same time, the fiber composite material is bonded to the surface of the concrete base by a fixing glue, and the fiber composite material passes along the inner wall of the positioning groove, and the anchor plate lifts up the position where the fiber composite material passes through, and the support member is inserted from one side of the positioning groove. The position of the groove squeezes the position raised by the fiber composite material, and the support member is clamped in the installation groove horizontally to squeeze the fiber composite material. The fiber composite material can be tightened in the positioning groove to prevent it from detaching or deflecting, so that the anchoring is more stable.

[0032] Slots are provided on both sides of the inner wall of the positioning groove, the ends of the anchor plates are installed in the slots, a through hole is provided in the middle of the support member, a baffle is provided in the middle of the through hole, and the baffle is arranged at an angle, wherein the fiber composite material passes through the hole on one side of the baffle and out from the other side of the baffle.

[0033] The fiber composite material is passed through the hole on one side of the baffle and out from the other side of the baffle, and is tightened while being firmly wrapped around the support. The inclined baffle can prevent the fiber composite material from detaching from the support.

[0034] A support block is fixed on the top of the support member. After the support member is installed in the positioning groove, the top of the support block contacts the fiber composite material adhered in the positioning groove. Two groups of support blocks are provided, and the support blocks are prism-shaped, which can provide more contact area between the support blocks and the fiber composite material.

[0035] The top of the support block supports the fiber composite material and squeezes it to make it fit the inner wall of the positioning groove to prevent the fiber composite material from falling off the positioning groove.

[0036] Embodiment 2:

[0037] The present invention also provides an anchoring method for a fiber reinforced composite anchoring device for reinforcing a concrete structure, comprising the following steps:

[0038] S1: Open a positioning groove on the concrete base, open a clamping groove in the positioning groove, and install the end of the anchor plate in the clamping groove;

[0039] S2: The fiber composite material is bonded to the surface of the concrete base by a fixing adhesive, the fiber composite material passes along the inner wall of the positioning groove, and the anchor plate lifts up the position where the fiber composite material passes.

[0040] S3: Insert the support member from one side of the positioning groove, squeeze the position of the groove protruding by the fiber composite material, and clamp the support member horizontally in the installation groove, and squeeze the fiber composite material at both ends to make it fit the anchor plate.

[0041] S4: The fiber composite material is passed through the perforation on one side of the baffle and out of the perforation on the other side of the baffle, and the fiber composite material is tightened to prevent it from falling off the support member. At the same time, the top of the support block can support the fiber composite material and squeeze it to fit the inner wall of the positioning groove to prevent the fiber composite material from falling off the positioning groove.

[0042] The fiber composite material is bonded to the surface of the concrete base by a fixing glue, wherein the fixing glue is a mixture of epoxy resin and natural rubber. After the end of the anchor plate is installed in the slot, the fixing agent fills the slot and can also adhere the end of the anchor plate to the slot.

[0043] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A fiber reinforced composite anchoring device for reinforcing concrete structures, characterized in that: The invention comprises a concrete base, wherein a fiber composite material is bonded to the surface of the concrete base, and two groups of positioning grooves are opened at the bottom of the concrete base. Anchor plates are installed on both sides of the inner wall of the positioning grooves, and one side of the anchor plates has a curved surface. The anchor plates lift up the fiber composite material. A support member is installed between two adjacent groups of the anchor plates. The two sides of the support member are provided with grooves matching the curved surface, and the fiber composite material passes through between the anchor plates and the support member. The inner wall of the positioning groove is provided with clamping grooves on both sides, and the ends of the anchor plates are installed in the clamping grooves; A through hole is provided in the middle of the support member, a baffle is provided in the middle of the through hole, and the baffle is arranged obliquely, wherein the fiber composite material passes through the through hole on one side of the baffle and passes out from the other side of the baffle; A support block is fixed on the top of the support member. After the support member is installed in the positioning groove, the top of the support block contacts the fiber composite material adhered in the positioning groove. There are two groups of support blocks, each of which is in the shape of a prism; The fiber composite material is bonded to the surface of the concrete base by a fixing glue, wherein the fixing glue is a mixture of epoxy resin and natural rubber; After the end of the anchor plate is installed in the slot, the fixing agent fills the slot.

2. The fiber reinforced composite anchoring device for reinforcing concrete structures according to claim 1, characterized in that: The support member and the anchor plate are made of hard metal wood or metal.

3. The anchoring method of the fiber reinforced composite anchoring device for reinforcing concrete structure according to claim 1, characterized in that: The following steps are involved: S1: Open a positioning groove on the concrete base, open a clamping groove in the positioning groove, and install the end of the anchor plate in the clamping groove; S2: bonding the fiber composite material to the surface of the concrete base with a fixing adhesive, passing the fiber composite material along the inner wall of the positioning groove, and lifting the position where the fiber composite material passes through with an anchor plate; S3: Insert the support member from one side of the positioning groove, so that the position of the groove presses the position of the fiber composite material protrusion, and the support member is horizontally stuck in the installation groove; S4: Pass the fiber composite material into the through hole on one side of the baffle and out of the through hole on the other side of the baffle.

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