A reinforcing system and construction method for repairing defects and improving load bearing capacity

Abstract

The application discloses a reinforcing system and construction method for repairing defects and improving bearing capacity, and belongs to the field of concrete beam and slab regional construction. The reinforcing system comprises a cast-in-situ concrete slab and a cast-in-situ concrete beam, the cast-in-situ concrete slab and the cast-in-situ concrete beam are integrally poured, a reinforcing area is formed on the connecting part of the cast-in-situ concrete slab and the cast-in-situ concrete beam, reinforcing steel plates and reinforcing steel bars are arranged in the reinforcing area, the reinforcing steel plates are fixedly connected with the reinforcing steel bars, the reinforcing steel plates are filled with fine stone concrete for pouring and fixing, the reinforcing steel bars are filled with epoxy resin glue for anchoring, and the filling height of the fine stone concrete and the epoxy resin glue is matched. The application solves the problems that defects of the concrete slab cannot be repaired in time and the bearing capacity is insufficient, and the technical problem that the concrete slab structure will leak.

Description

Technical Field

[0001] This invention provides a reinforcement system and construction method for repairing defects and improving load-bearing capacity, belonging to the field of concrete beam and slab area construction. Background Technology

[0002] During the construction of concrete slabs, various factors such as insufficient compaction at beam-slab junctions, workers stepping on the floor reinforcement bars during pouring, premature formwork removal, and excessive floor load can lead to numerous quality problems, including cracks on the concrete slab surface, internal voids at beam-slab junctions, and reduced load-bearing capacity. If these defects are not repaired promptly and the insufficient load-bearing capacity is not reinforced, the concrete slab structure will leak, affecting its functionality and potentially posing safety hazards.

[0003] Due to its high strength, light weight, corrosion resistance, and fatigue resistance, FRP (fiberglass reinforced plastic) fabric is widely used in floor slab reinforcement. However, when reinforcing concrete slabs with FRP fabric, it suffers from insufficient anchorage length, stress lag, large deformation, and low strength utilization. High-pressure grouting is mainly used to repair cracks, but it has drawbacks such as incomplete crack repair and difficulty in controlling grouting pressure. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention. This invention discloses the basic concept of the technical solution adopted to solve the above-mentioned technical problems as follows:

[0005] A reinforcement system for repairing defects and improving load-bearing capacity includes a cast-in-place concrete slab, a cast-in-place concrete beam, a reinforcing steel plate, reinforcing bars, fine aggregate concrete, and epoxy resin adhesive. The cast-in-place concrete slab and the cast-in-place concrete beam are integrally cast. A reinforcement area is formed at the connection between the cast-in-place concrete slab and the cast-in-place concrete beam. The reinforcing steel plate and the reinforcing bars are installed in the reinforcement area and fixedly connected. The reinforcing steel plate is filled with fine aggregate concrete for fixation. The reinforcing bars are filled with epoxy resin adhesive for anchoring. The filling heights of the fine aggregate concrete and the epoxy resin adhesive are matched.

[0006] In a further technical solution, the reinforcing steel plate is L-shaped, with one end of the reinforcing steel plate overlapping the cast-in-place concrete beam and the other end of the reinforcing steel plate overlapping the cast-in-place concrete slab.

[0007] In a further technical solution, the reinforcing bars are provided in multiple sets and arranged in parallel, the bottom of the reinforcing bars is provided with reinforcing ribs, and auxiliary reinforcing bars are provided inside the reinforcing ribs, the auxiliary reinforcing bars being arranged perpendicular to the reinforcing bars.

[0008] In a further technical solution, the reinforcing rib is in a "U" shape. The reinforcing rib includes a main body portion, and both ends of the main body portion are provided with lateral portions. The lateral portions are upturned. The bottom of the reinforcing rib is provided with a first mounting hole, and the lateral portions are provided with second mounting holes. An auxiliary reinforcing bar is adapted to be inserted between the first mounting hole and the second mounting hole;

[0009] A notch portion is provided on the upper portion of the reinforcing rib, and the notch portion is adapted to mount a reinforcing bar;

[0010] The lateral mounting positioning member of the reinforcing rib, and the positioning member is adapted to position the auxiliary reinforcing bar and the reinforcing bar.

[0011] In a further technical solution, a first positioning hole is provided on the side of the reinforcing rib. The positioning member includes an upper claw portion and a lower claw portion. The upper claw portion includes two sets of side claw hooks in a "V" shape and an intermediate sleeve. The side claw hooks are adapted to be hooked on the reinforcing bar;

[0012] The lower claw portion includes a vertical column and a U-shaped plate. The vertical column is fixedly connected to the U-shaped plate. The U-shaped plate is adapted to be clamped on the auxiliary reinforcing bar, and the clamping position is between the first mounting hole and the second mounting hole;

[0013] A second positioning hole is provided on the vertical column, and a third positioning hole is provided on the intermediate sleeve. The apertures of the first positioning hole, the second positioning hole and the third positioning hole are adapted to each other. The intermediate sleeve is adapted to be sleeved on the vertical column. A positioning bolt is adapted to be installed between the first positioning hole, the second positioning hole and the third positioning hole to relatively fix the intermediate sleeve and the vertical column on the reinforcing rib.

[0014] In a further technical solution, a longitudinal plate is installed on the side of the reinforcing bar away from the reinforcing steel plate. Positioning holes are provided on both the longitudinal plate and the reinforcing steel plate. A reinforcing member is installed on the positioning holes. The reinforcing member is adapted to the positions at both ends within the reinforcing area.

[0015] In a further technical solution, the reinforcing member includes a vertical rod. The vertical rod is a threaded rod, the positioning hole is a threaded hole, and the bottom end of the vertical rod is adapted to be threadedly connected into the positioning hole;

[0016] A positioning plate is sleeved on the vertical rod. The positioning plate is adapted to be fitted on the surface of the cast-in-place concrete slab or the cast-in-place concrete beam outside the reinforcing area. A locking nut is installed on the positioning plate. The locking nut is adapted to be installed on the vertical rod to lock the positioning plate downward.

[0017] A construction method for a reinforcement system for repairing defects and improving bearing capacity includes the following steps:

[0018] Step 1: According to the design requirements, grooves are cut at the connection between the cast-in-place concrete slab and the cast-in-place concrete beam for casting the reinforcing steel plate, and grooves are cut in the cast-in-place concrete slab for anchoring the reinforcing steel bars;

[0019] Step 2: After completing the grooving work in Step 1, roughen the bottom of the groove in the reinforcing steel plate, and then clean the groove and grooving residue of the reinforcing steel plate.

[0020] Step 3: Weld the reinforcing steel plates and reinforcing bars according to the design requirements;

[0021] Step 4: Pour 2cm thick fine stone concrete into the groove of the reinforcing steel plate, and then put in the welded reinforcing steel plate and reinforcing steel bars.

[0022] Step 5: Continue pouring fine aggregate concrete into the grooves of the reinforcing steel plate until the plate surface reaches the required elevation, while simultaneously injecting epoxy resin into the grooves of the reinforcing steel bars.

[0023] Step Six: After the above work is completed for 48 hours, pour mortar on the slab surface to level it until the specified elevation is reached.

[0024] In a further technical solution, in step four, auxiliary steel bars are installed inside the reinforcing bar in advance, and then positioning parts are installed so that the upper claw part is connected to the reinforcing bars on both sides of the reinforcing bar, the lower claw part abuts against the auxiliary steel bar, and the positioning parts are fixed on the reinforcing bar; then, longitudinal plates are welded to the ends of the reinforcing bars, and then the reinforcing steel plate and the reinforcing bars are welded.

[0025] In a further technical solution, in step five, after the vertical rod is installed, it is abutted against the surface of the cast-in-place concrete slab or cast-in-place concrete beam outside the reinforcement area by the installation position plate, and the locking nut is tightened to lock the fit of the position plate.

[0026] Beneficial effects:

[0027] The reinforcement system of this invention has the functions of repairing defects and strengthening load-bearing capacity. The structure is subjected to reasonable stress, the load-bearing capacity is greatly improved, the repair effect is obvious, the floor leakage problem is significantly reduced, the construction is simple, and the construction cost is reduced.

[0028] This invention achieves convenient spacing positioning of reinforcing bars and ease of welding with reinforcing steel plates by setting bottom reinforcing ribs. Secondly, the auxiliary reinforcing bars set at the bottom enhance the strength of the reinforced area when epoxy resin is implanted, thus achieving the effect of repairing the concrete slab at the junction of the cast-in-place concrete slab and the cast-in-place concrete beam.

[0029] This invention avoids the problem of inaccurate positioning caused by the floating of the processed steel bars and reinforcing steel plates during the pouring of fine stone concrete and epoxy resin adhesive by installing reinforcement components, thus achieving a stable pouring effect. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the reinforcement system of the present invention;

[0032] Figure 2 For the present invention Figure 1 Schematic diagram of AA section;

[0033] Figure 3 This is a side view of a reinforcing bar according to another embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of a single set of reinforcing bars according to the present invention;

[0035] Figure 5 This is a schematic diagram of the reinforcing bar structure of the present invention;

[0036] Figure 6 This is a structural diagram of the upper claw portion of the present invention;

[0037] Figure 7 This is a structural diagram of the lower claw portion of the present invention;

[0038] Figure 8 This is a schematic plan view of a reinforcement system according to another embodiment of the present invention;

[0039] Figure 9 This is a cross-sectional schematic diagram of the reinforcement component on the longitudinal plate of the present invention.

[0040] In the diagram: 1. Cast-in-place concrete slab; 2. Cast-in-place concrete beam; 3. Reinforcing steel plate; 4. Reinforcing steel bar; 5. Fine aggregate concrete; 6. Epoxy resin adhesive; 7. Reinforced area; 8. Reinforcing bar; 9. Auxiliary steel bar; 10. Intermediate sleeve; 11. Vertical column; 12. U-shaped plate; 13. Positioning hole two; 14. Positioning hole three; 15. Longitudinal plate; 16. Vertical rod; 17. Positioning plate; 18. Locking nut; 19. Side claw hook; 81. Main body; 82. Lateral part; 83. Mounting hole one; 84. Mounting hole two; 85. Recessed part; 86. Positioning hole one; 87. Positioning bolt. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] Example 1

[0044] like Figures 1 to 2 The diagram illustrates one embodiment of the present invention. A reinforcement system for repairing defects and improving load-bearing capacity includes a cast-in-place concrete slab 1, a cast-in-place concrete beam 2, a reinforcing steel plate 3, reinforcing steel bars 4, fine aggregate concrete 5, and epoxy resin adhesive 6. The cast-in-place concrete slab 1 and the cast-in-place concrete beam 2 are integrally cast. A reinforcement area 7 is provided at the connection between the cast-in-place concrete slab 1 and the cast-in-place concrete beam 2. The reinforcing steel plate 3 and the reinforcing steel bars 4 are installed in the reinforcement area 7 and are fixedly connected. The reinforcing steel plate 3 is filled with fine aggregate concrete 5 for fixation, and the reinforcing steel bars 4 are filled with epoxy resin adhesive 6 for anchoring. The filling heights of the fine aggregate concrete 5 and the epoxy resin adhesive 6 are matched.

[0045] like Figure 2 The reinforcing steel plate 3 is "L" shaped and can be an angle steel. Multiple sets of reinforcing steel bars 4 are welded to one end. One end of the reinforcing steel plate 3 overlaps with the cast-in-place concrete beam 2, and the other end of the reinforcing steel plate 3 overlaps with the cast-in-place concrete slab 1.

[0046] A construction method for a reinforcement system that repairs defects and improves load-bearing capacity includes the following steps:

[0047] Step 1: According to the design requirements, grooves are cut at the connection between the cast-in-place concrete slab 1 and the cast-in-place concrete beam 2 for casting the reinforcing steel plate 3; grooves are cut in the cast-in-place concrete slab 1 for anchoring the reinforcing steel bars 4.

[0048] Step 2: After completing the grooving work in Step 1, roughen the bottom of the groove in the reinforcing steel plate 3, and clean the groove and grooving residue in the reinforcing steel plate 3 after roughening.

[0049] Step 3: Weld the reinforcing steel plate 3 and the reinforcing steel bar 4 according to the design requirements;

[0050] Step 4: Pour 2cm thick fine stone concrete 5 into the groove of the reinforcing steel plate 3, and then put in the welded reinforcing steel plate 3 and reinforcing steel bar 4.

[0051] Step 5: Continue pouring fine stone concrete 5 into the groove of the reinforcing steel plate 3 until the plate surface elevation is reached, and at the same time inject epoxy resin 6 into the groove of the reinforcing steel bar 4.

[0052] Step Six: After the above work is completed for 48 hours, pour mortar on the slab surface to level it until the specified elevation is reached.

[0053] Example 2

[0054] like Figures 3 to 7As shown, another embodiment of the present invention is provided. Based on embodiment 1, multiple sets of reinforcing steel bars 4 are provided and arranged in parallel. A reinforcing bar 8 is provided at the bottom of the reinforcing steel bar 4, and an auxiliary steel bar 9 is provided inside the reinforcing bar 8. The auxiliary steel bar 9 is arranged perpendicular to the reinforcing steel bar 4.

[0055] The reinforcing bar 8 includes a main body 81, with lateral portions 82 at both ends of the main body 81. The lateral portions 82 curve upwards. The bottom of the reinforcing bar 8 has a first mounting hole 83, and the lateral portions 82 have a second mounting hole 84. The space between the first mounting hole 83 and the second mounting hole 84 is suitable for inserting auxiliary reinforcing bars 9. The upper part of the reinforcing bar 8 has a recess 85, which is suitable for installing reinforcing bars 4. The reinforcing bar 8 has a lateral mounting positioning member, which is suitable for positioning the auxiliary reinforcing bars 9 and the reinforcing bars 4.

[0056] The reinforcing bar 8 has a lateral positioning hole 86. The positioning component includes an upper claw and a lower claw. The upper claw includes two sets of side claw hooks 19 in a "V" shape and an intermediate sleeve 10. The side claw hooks 19 are suitable for being hooked onto the reinforcing bar 4. The lower claw includes a vertical column 11 and a U-shaped plate 12. The vertical column 11 is fixedly connected to the U-shaped plate 12. The U-shaped plate 12 is suitable for being snapped onto the auxiliary reinforcing bar 9, and the snapping position is located between the first mounting hole 83 and the second mounting hole 84. The vertical column 11 has a second positioning hole 13, and the intermediate sleeve 10 has a third positioning hole 14. The diameters of the first positioning hole 86, the second positioning hole 13, and the third positioning hole 14 are matched. The intermediate sleeve 10 is suitable for being fitted onto the vertical column 11. A positioning bolt 87 is suitable for being installed between the first positioning hole 86, the second positioning hole 13, and the third positioning hole 14 to fix the intermediate sleeve 10 and the vertical column 11 onto the reinforcing bar 8.

[0057] Example 3

[0058] like Figure 8 and Figure 9 As shown, in another embodiment of the present invention, based on embodiment 1, a longitudinal plate 15 is installed on the side of the reinforcing steel bar 4 away from the reinforcing steel plate 3. Position holes are provided on both the longitudinal plate 15 and the reinforcing steel plate 3, and reinforcing members are installed in the position holes. The reinforcing members are adapted to positions where their opposite ends are within the reinforcing area 7. The reinforcing members include a vertical rod 16, which is a threaded rod, and the position holes are threaded holes. The bottom end of the vertical rod 16 is adapted to be threaded into the position hole.

[0059] A position plate 17 is sleeved on the vertical rod 16. The position plate 17 is adapted to fit against the surface of the cast-in-place concrete slab 1 or cast-in-place concrete beam 2 outside the reinforcement area 7. A locking nut 18 is installed on the position plate 17. The locking nut 18 is adapted to be installed on the vertical rod 16 to lock the position plate 17 downward.

[0060] A construction method for a reinforcement system that repairs defects and improves load-bearing capacity includes the following steps:

[0061] Step 1: According to the design requirements, grooves are cut at the connection between the cast-in-place concrete slab 1 and the cast-in-place concrete beam 2 for casting the reinforcing steel plate 3; grooves are cut in the cast-in-place concrete slab 1 for anchoring the reinforcing steel bars 4.

[0062] Step 2: After completing the grooving work in Step 1, roughen the bottom of the groove in the reinforcing steel plate 3, and clean the groove and grooving residue in the reinforcing steel plate 3 after roughening.

[0063] Step 3: Weld the reinforcing steel plate 3 and the reinforcing steel bar 4 according to the design requirements;

[0064] Step 4: Install auxiliary steel bars 9 inside the reinforcing bar 8 in advance, and then install the positioning piece so that the upper claw part connects to the reinforcing bars 4 on both sides of the reinforcing bar 8, and the lower claw part abuts against the auxiliary steel bar 9, and fixes the positioning piece on the reinforcing bar 8; then weld the longitudinal plate 15 to the end of the reinforcing bar 4, and then weld the reinforcing steel plate 3 to the reinforcing bar 4.

[0065] A 2cm thick layer of fine stone concrete 5 is poured into the groove of the reinforcing steel plate 3. After pouring, the welded reinforcing steel plate 3 and reinforcing steel bar 4 are placed in.

[0066] Step 5: After installing the vertical rod 16, abut it against the surface of the cast-in-place concrete slab 1 or cast-in-place concrete beam 2 outside the reinforced area 7 using the installation position plate 17, and tighten the nut 18 to secure the position plate 17. Continue pouring fine aggregate concrete 5 into the groove of the reinforcing steel plate 3 until the slab surface elevation is reached, and at the same time inject epoxy resin 6 into the groove of the reinforcing steel bar 4;

[0067] Step Six: After the above work is completed for 48 hours, pour mortar on the slab surface to level it until the specified elevation is reached.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforcement system for repairing defects and improving load-bearing capacity, characterized in that, The structure includes a cast-in-place concrete slab (1), a cast-in-place concrete beam (2), a reinforcing steel plate (3), reinforcing steel bars (4), fine aggregate concrete (5), and epoxy resin adhesive (6). The cast-in-place concrete slab (1) and the cast-in-place concrete beam (2) are cast together. A reinforcing area (7) is provided at the connection between the cast-in-place concrete slab (1) and the cast-in-place concrete beam (2). The reinforcing steel plate (3) and the reinforcing steel bars (4) are installed in the reinforcing area (7). The reinforcing steel plate (3) and the reinforcing steel bars (4) are fixedly connected. The reinforcing steel plate (3) is filled with fine aggregate concrete (5) and fixed. The reinforcing steel bars (4) are filled with epoxy resin adhesive (6) and anchored. The filling height of the fine aggregate concrete (5) and the epoxy resin adhesive (6) are matched. One end of the reinforcing steel plate (3) overlaps with the cast-in-place concrete beam (2), and the other end of the reinforcing steel plate (3) overlaps with the cast-in-place concrete slab (1). The reinforcing steel bars (4) are provided in multiple sets and arranged in parallel. The bottom of the reinforcing steel bars (4) is provided with reinforcing bars (8), and auxiliary steel bars (9) are provided inside the reinforcing bars (8). The auxiliary steel bars (9) are arranged perpendicular to the reinforcing steel bars (4). The reinforcing bar (8) includes a main body (81), and two sides of the main body (81) are provided with side parts (82). The side parts (82) are curved upward. The bottom of the reinforcing bar (8) is provided with a first mounting hole (83), and the side parts (82) are provided with a second mounting hole (84). The auxiliary reinforcing bar (9) is suitable for being inserted between the first mounting hole (83) and the second mounting hole (84). The upper part of the reinforcing bar (8) is provided with a notch (85), which is suitable for installing the reinforcing bar (4). Lateral mounting positioning member of the reinforcing bar (8), the positioning member is adapted to position the auxiliary reinforcing bar (9) and the reinforcing bar (4). The reinforcing bar (8) is provided with a positioning hole (86) on the side. The positioning member includes an upper claw part and a lower claw part. The upper claw part includes two sets of side claw hooks (19) in the shape of "V" and an intermediate sleeve (10). The side claw hooks (19) are suitable for being attached to the reinforcing bar (4). The lower claw part includes a vertical column (11) and a U-shaped plate (12). The vertical column (11) and the U-shaped plate (12) are fixedly connected. The U-shaped plate (12) is adapted to be snapped onto the auxiliary steel bar (9), and the snapping position is located between the first mounting hole (83) and the second mounting hole (84). The vertical column (11) has a second positioning hole (13), and the intermediate sleeve (10) has a third positioning hole (14). The diameters of the first positioning hole (86), the second positioning hole (13), and the third positioning hole (14) are compatible. The intermediate sleeve (10) is suitable for being fitted onto the vertical column (11). A positioning bolt (87) is suitable for being installed between the first positioning hole (86), the second positioning hole (13), and the third positioning hole (14) to fix the intermediate sleeve (10) and the vertical column (11) relative to the reinforcing bar (8).

2. The reinforcement system for repairing defects and improving load-bearing capacity according to claim 1, characterized in that, A longitudinal plate (15) is installed on the side of the reinforcing steel bar (4) away from the reinforcing steel plate (3). Position holes are provided on both the longitudinal plate (15) and the reinforcing steel plate (3). Reinforcing members are installed on the position holes. The reinforcing members are adapted to positions at opposite ends within the reinforcing area (7).

3. The reinforcement system for repairing defects and improving load-bearing capacity according to claim 2, characterized in that, The reinforcement includes a vertical rod (16), which is a threaded rod, and the position hole is a threaded hole. The bottom end of the vertical rod (16) is adapted to be threaded into the position hole. A position plate (17) is sleeved on the vertical rod (16). The position plate (17) is adapted to fit against the surface of the cast-in-place concrete slab (1) or cast-in-place concrete beam (2) outside the reinforced area (7). A locking nut (18) is installed on the position plate (17). The locking nut (18) is adapted to be installed on the vertical rod (16) to lock the position plate (17) downward.

4. A construction method for a reinforcement system for repairing defects and improving load-bearing capacity as described in claim 3, characterized in that, Includes the following steps: Step 1: According to the design requirements, grooves are cut at the connection between the cast-in-place concrete slab (1) and the cast-in-place concrete beam (2) for casting the reinforcing steel plate (3), and grooves are cut in the cast-in-place concrete slab (1) for anchoring the reinforcing steel bars (4). Step 2: After completing the grooving work in Step 1, roughen the bottom of the groove of the reinforcing steel plate (3), and clean the groove of the reinforcing steel plate (3) and the grooving residue after roughening. Step 3: Weld the reinforcing steel plate (3) and reinforcing steel bar (4) according to the design requirements; Step 4: Pour 2cm thick fine stone concrete (5) into the groove of the reinforcing steel plate (3), and after pouring, put in the welded reinforcing steel plate (3) and reinforcing steel bars (4); Step 5: Continue pouring fine stone concrete (5) into the groove of the reinforcing steel plate (3) until the plate surface elevation is reached, and at the same time inject epoxy resin glue (6) into the groove of the reinforcing steel bar (4). Step Six: After the above work is completed for 48 hours, pour mortar on the slab surface to level it until the specified elevation is reached.

5. The construction method of the reinforcement system for repairing defects and improving load-bearing capacity according to claim 4, characterized in that, In step four, auxiliary steel bars (9) are installed inside the reinforcing bar (8) in advance, and then the positioning piece is installed so that the upper claw is connected to the reinforcing bars (4) on both sides of the reinforcing bar (8), the lower claw abuts against the auxiliary steel bar (9), and the positioning piece is fixed on the reinforcing bar (8); then the longitudinal plate (15) is welded to the end of the reinforcing bar (4), and then the reinforcing steel plate (3) is welded to the reinforcing bar (4).

6. The construction method of the reinforcement system for repairing defects and improving load-bearing capacity according to claim 5, characterized in that, In step five, after the vertical rod (16) is installed, it is placed against the surface of the concrete slab (1) or concrete beam (2) outside the reinforced area (7) by the installation position plate (17), and the nut (18) is tightened to lock the position plate (17).

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