Lightweight high-strength prestressed FRP (Fiber Reinforced Plastic) bar reinforced beam body structure

Abstract

The utility model discloses a light high-strength prestress FRP (fiber reinforced plastic) rib reinforced beam structure which comprises a second vertical beam arranged on the bottom end face of a cross beam, a first vertical beam is poured at the joint of the bottom of the cross beam, a cross frame beam is sleeved on the outer surface of the second vertical beam, the second vertical beam and the cross frame beam are bundled through fastening iron wires, and the fastening iron wires are connected with the first vertical beam and the second vertical beam. The number of the transverse frame beams is multiple. A threaded pipe can be embedded in a first vertical beam, a threaded rod is connected to the inner surface of the threaded pipe in a threaded mode, then a limiting supporting plate is arranged on the outer surface of the threaded rod in a sleeving mode, and finally a limiting nut is connected to the outer surface of the threaded rod in a threaded mode, so that threaded limiting is conducted on the position of the limiting supporting plate; the supporting positions of the supporting rings are changed by arranging the supporting rings on the vertical beams, then the transverse frame beams are placed on the inner arc surfaces of the supporting rings, and finally the connecting positions of the second vertical beams and the transverse frame beams are bundled through the iron bundling wires, so that the purposes of improving the stability of the connecting positions of the transverse beams and the vertical beams and preventing the transverse frame beams from falling off can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of building structure technology, and in particular relates to lightweight, high-strength prestressed FRP reinforcement for beam structures. Background Technology

[0002] FRP (fiber reinforced composite material) bars are made of fibers (such as carbon fiber CFRP, glass fiber GFRP, and aramid fiber AFRP) and resin matrix. They are lightweight and high-strength and are generally used in building repair or structural beam reinforcement. When reinforcing structural beams, vertical bars need to be embedded at the bottom of the horizontal beams, and horizontal frame beams are tied to the surfaces of multiple vertical beams before concrete is poured.

[0003] The existing method of binding horizontal and vertical beams can lead to loosening at the connection points. During concrete pouring, this can cause the horizontal beams to become unstable and fall off, thus reducing the reinforcement effect. To address this, we propose a lightweight, high-strength prestressed FRP reinforcement method to strengthen beam structures and overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide lightweight, high-strength prestressed FRP reinforcement for beam structures, which increases the stability of the connection between horizontal and vertical beams and prevents them from falling off, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a lightweight, high-strength prestressed FRP reinforced beam structure, including a second vertical beam set at the bottom end face of a horizontal beam, a first vertical beam cast at the bottom joint of the horizontal beam, a horizontal frame beam fitted on the outer surface of the second vertical beam, the second vertical beam and the horizontal frame beam being tied together by fastening wire, the number of horizontal frame beams being multiple, and a support structure being set on the lower side of the surface of the horizontal frame beam, the support structure including a threaded tube embedded and fixedly connected inside the first vertical beam, a threaded rod threadedly connected to the inner surface of the threaded tube, a limiting support plate fitted on the outer surface of the threaded rod, a support ring fixedly connected to the top of the limiting support plate, the inner surface of the support ring being tightly fitted to the outer surface of the horizontal frame beam, and a limiting nut threadedly connected to the outer surface of the threaded rod.

[0006] Preferably, the inner surface of the support ring has an arc-shaped structure, and the inner arc of the support ring is adapted to the outer diameter of the crossbeam.

[0007] Preferably, the limiting nuts are located on both sides of the limiting support plate, and the end faces of the two limiting nuts are tightly fitted with the limiting support plate.

[0008] Preferably, a base plate is provided at the bottom of the surface of the vertical beam, and the base plate is fixedly connected to the vertical beam and the roof by expansion bolts.

[0009] Preferably, the top of the crossbeam is provided with a pre-embedded hole, the inner surface of the pre-embedded hole is inserted into the second vertical beam, and the bottom end face of the second vertical beam is welded to the base plate.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model allows for pre-drilling and embedding of a threaded pipe inside the first vertical beam, threading a threaded rod to the inner surface of the threaded pipe, then fitting a limiting support plate onto the outer surface of the threaded rod, and finally threading a limiting nut to the outer surface of the threaded rod, thereby thread-limiting the position of the limiting support plate and changing the support position of the support ring. Then, the horizontal frame beam is placed on the inner arc surface of the support ring, and finally, the connection between the second vertical beam and the horizontal frame beam is tied with iron binding wire. By setting the above structure, the stability of the connection between the horizontal beam and the vertical beam can be increased, and the horizontal frame beam can be prevented from falling off.

[0012] 2. This utility model uses a limiting nut threadedly fastened to the outer surface of the threaded rod, thereby securing and fitting both sides of the limiting support plate.

[0013] 3. This utility model uses expansion bolts to connect the base plate with the vertical beam and the roof, increasing the stability of the bottom of the vertical beam.

[0014] 4. This utility model has a pre-embedded hole at the top of the crossbeam, into which the second vertical beam can be inserted. At the same time, the bottom end face of the second vertical beam is welded to the base plate, which can support the bottom of the second vertical beam and improve its stability. Attached Figure Description

[0015] in:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial enlarged view of point A of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled support structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the threaded pipe structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Vertical beam one, 2. Horizontal beam, 3. Vertical beam two, 4. Horizontal frame beam, 5. Threaded pipe, 6. Threaded rod, 7. Limiting support plate, 8. Support ring, 9. Limiting nut, 10. Base plate, 11. Expansion bolt. Detailed Implementation

[0022] In the following description, embodiments of the lightweight, high-strength prestressed FRP reinforcement beam structure of this utility model will be described with reference to the accompanying drawings.

[0023] Example 1: Figure 1-4 This invention illustrates a lightweight, high-strength prestressed FRP (fiberglass reinforced plastic) reinforced beam structure according to an embodiment of the present invention. It includes a second vertical beam 3 positioned at the bottom end of a horizontal beam 2. A first vertical beam 1 is cast at the bottom joint of the horizontal beam 2. A horizontal frame beam 4 is fitted onto the outer surface of the second vertical beam 3. The second vertical beam 3 and the horizontal frame beam 4 are bound together by fastening wire. Multiple horizontal frame beams 4 are present, and a support structure is provided on the lower side of the surface of each horizontal frame beam 4. The support structure includes a threaded tube 5 embedded and fixedly connected inside the first vertical beam 1. A threaded rod 6 is threadedly connected to the inner surface of the threaded tube 5. The outer surface of the threaded rod 6... A limiting support plate 7 is fitted on the surface, and a support ring 8 is fixedly connected to the top of the limiting support plate 7. The inner surface of the support ring 8 is an arc-shaped structure, and the inner arc of the support ring 8 is adapted to the outer diameter of the horizontal frame beam 4. The inner surface of the support ring 8 is tightly fitted with the outer surface of the horizontal frame beam 4. The outer surface of the threaded rod 6 is threadedly connected with a limiting nut 9. The limiting nut 9 is located on both sides of the limiting support plate 7. The end faces of the two limiting nuts 9 are tightly fitted with the limiting support plate 7. The limiting nuts 9 are threadedly fastened to the outer surface of the threaded rod 6, thereby fastening and fitting the two sides of the limiting support plate 7.

[0024] The threaded pipe 5 can be pre-drilled and embedded inside the vertical beam 1. The threaded rod 6 is threaded to the inner surface of the threaded pipe 5. Then, the limiting support plate 7 is sleeved on the outer surface of the threaded rod 6. Finally, the limiting nut 9 is threaded to the outer surface of the threaded rod 6, thereby thread-limiting the position of the limiting support plate 7 and changing the support position of the support ring 8. Then, the horizontal frame beam 4 is placed on the inner arc surface of the support ring 8. Finally, the connection between the vertical beam 2 3 and the horizontal frame beam 4 is tied with iron binding wire. By setting the above structure, the stability of the connection between the horizontal beam and the vertical beam can be increased, and the horizontal frame beam can be prevented from falling off.

[0025] Example 2: Figure 1-4This invention illustrates a lightweight, high-strength prestressed FRP (fiberglass reinforced plastic) reinforced beam structure according to an embodiment of the present invention. It includes a second vertical beam 3 positioned at the bottom end of a horizontal beam 2. A first vertical beam 1 is cast at the bottom joint of the horizontal beam 2. A base plate 10 is positioned at the bottom of the surface of the first vertical beam 1, and the base plate 10 is fixedly connected to the first vertical beam 1 and the roof via expansion bolts 11. A pre-embedded hole is provided at the top of the horizontal beam 2, and the inner surface of the pre-embedded hole is inserted into the second vertical beam 3. The bottom end of the second vertical beam 3 is welded to the base plate 10. The expansion bolts 11 connect the base plate 10 to the first vertical beam 1 and the roof, increasing the stability of the bottom of the first vertical beam 1. The pre-embedded hole at the top of the horizontal beam 2 allows the second vertical beam 3 to be inserted into the pre-embedded hole. The bottom end face of the second vertical beam 3 is welded to the base plate 10, which can support the bottom of the second vertical beam 3 and improve its stability. A horizontal frame beam 4 is fitted on the outer surface of the second vertical beam 3. The second vertical beam 3 and the horizontal frame beam 4 are tied together by fastening wire. There are multiple horizontal frame beams 4, and a support structure is set on the lower side of the surface of the horizontal frame beam 4. The support structure includes a threaded tube 5 embedded and fixedly connected inside the first vertical beam 1. A threaded rod 6 is threadedly connected to the inner surface of the threaded tube 5. A limiting support plate 7 is fitted on the outer surface of the threaded rod 6. A support ring 8 is fixedly connected to the top of the limiting support plate 7. The inner surface of the support ring 8 is tightly fitted to the outer surface of the horizontal frame beam 4. A limiting nut 9 is threadedly connected to the outer surface of the threaded rod 6.

[0026] Working principle: When using this utility model, the user can pre-drill holes to embed the threaded pipe 5 inside the vertical beam 1, thread the threaded rod 6 to the inner surface of the threaded pipe 5, then fit the limiting support plate 7 on the outer surface of the threaded rod 6, and finally thread the limiting nut 9 to the outer surface of the threaded rod 6, thereby thread-limiting the position of the limiting support plate 7, changing the support position of the support ring 8, then placing the horizontal frame beam 4 on the inner arc surface of the support ring 8, and finally binding the connection between the vertical beam 2 and the horizontal frame beam 4 with iron binding wire. By setting a pre-embedded hole at the top of the horizontal beam 2, the vertical beam 2 can be inserted into the pre-embedded hole. At the same time, the bottom end face of the vertical beam 2 can be welded to the base plate 10 to support the bottom of the vertical beam 2, improving the stability of the vertical beam 2, thereby increasing the stability of the connection between the horizontal beam and the vertical beam and preventing the horizontal frame beam from falling off.

Claims

1. A lightweight, high-strength prestressed FRP reinforced beam structure, comprising a second vertical beam (3) set at the bottom end face of a horizontal beam (2), a first vertical beam (1) cast at the joint at the bottom of the horizontal beam (2), a horizontal frame beam (4) fitted on the outer surface of the second vertical beam (3), and the second vertical beam (3) and the horizontal frame beam (4) bound together by fastening wire, characterized in that, The number of the horizontal frame beams (4) is multiple, and a support structure is provided on the lower side of the surface of the horizontal frame beams (4). The support structure includes a threaded tube (5) embedded and fixedly connected inside the vertical beam (1). A threaded rod (6) is threadedly connected to the inner surface of the threaded tube (5). A limiting support plate (7) is sleeved on the outer surface of the threaded rod (6). A support ring (8) is fixedly connected to the top of the limiting support plate (7). The inner surface of the support ring (8) is tightly fitted with the outer surface of the horizontal frame beam (4). A limiting nut (9) is threadedly connected to the outer surface of the threaded rod (6).

2. The lightweight, high-strength prestressed FRP reinforced beam structure according to claim 1, characterized in that, The inner surface of the support ring (8) is an arc-shaped structure, and the inner arc of the support ring (8) is adapted to the outer diameter of the crossbeam (4).

3. The lightweight, high-strength prestressed FRP reinforced beam structure according to claim 1, characterized in that, The limiting nuts (9) are located on both sides of the limiting support plate (7), and the end faces of the two limiting nuts (9) are tightly fitted with the limiting support plate (7).

4. The lightweight, high-strength prestressed FRP reinforced beam structure according to claim 1, characterized in that, A base plate (10) is provided at the bottom of the surface of the vertical beam (1), and the base plate (10) is fixedly connected to the vertical beam (1) and the roof by expansion bolts (11).

5. The lightweight, high-strength prestressed FRP reinforced beam structure according to claim 4, characterized in that, The top of the crossbeam (2) is provided with a pre-embedded hole, the inner surface of the pre-embedded hole is inserted into the vertical beam (3), and the bottom end face of the vertical beam (3) is welded to the base plate (10).

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