Lightweight reinforcing structure for beam plate area in old building and mounting method
By using a combined structure of concrete slabs, beams and reinforced components in the beam and slab areas in old buildings, and using high-strength steel cables and flexible linings to form a confining pressure, the problems of low reinforcement strength and high construction difficulty in the prior art are solved. A stable and efficient reinforcement effect is achieved.
Patent Information
- Application Number
- CN202411584305.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-01-14
AI Technical Summary
The prior art has problems such as difficult construction, uncertain reinforcement strength, large weight and difficult to withstand large load conditions when reinforced in old buildings.
Using a lightweight reinforced structure including concrete slabs, concrete beams and reinforced components, the combination of bottom reinforced plates, side reinforced plates and connectors is used to form a confining pressure using high-strength steel cables and flexible lining to ensure the stability of the reinforced structure. Sex and reliability.
Effective reinforcement of beam and slab areas in old buildings is achieved, avoiding the problems of low reinforcement strength and difficulty in evaluating the traditional reinforcement method, and not weakening the original structural strength, ensuring the reliability of reinforcement and the convenience of construction.
Smart Images
Figure CN119308530A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of old building reconstruction, and in particular to a lightweight reinforcement structure and an installation method for a beam and slab area in an old building. Background Art
[0002] At present, the demand for reinforcement and renovation of old buildings is increasing, and there is a need to increase the load above the floor slabs. Current technology often uses CFRP (carbon fiber material) gluing reinforcement or steel plate reinforcement.
[0003] Among them, CFRP bonding reinforcement technology is widely used due to its advantages such as light weight, high strength and good corrosion resistance. However, this technology also has some obvious disadvantages. First, the construction is difficult and requires professional construction personnel and sophisticated construction technology. Secondly, the bonding strength between CFRP material and concrete is difficult to guarantee, which may lead to uncertainty in the reinforcement effect. Finally, the structural performance after CFRP reinforcement is difficult to directly detect and evaluate, so the reliability of the reinforcement is difficult to determine. Steel plate reinforcement has the advantages of low construction difficulty and easy assessment of reinforcement strength. The weight of steel plate reinforcement is slightly larger. However, the weight of steel plate reinforcement is relatively large, which may cause additional burden on the original structure. At the same time, for working conditions that need to withstand large loads, steel plate reinforcement may not meet the requirements. Summary of the invention
[0004] In view of the problem in the prior art that old buildings are difficult to reinforce under heavy load conditions, the present invention provides a lightweight reinforcement structure and an installation method for the beam and slab area of old buildings.
[0005] The present invention is achieved through the following technical solutions: A lightweight reinforcement structure for the beam and slab area of an old building, comprising a concrete slab, a concrete beam and a reinforcement assembly, wherein the concrete beam is arranged at the bottom of the concrete slab, and the reinforcement assembly comprises a bottom edge reinforcement plate, two side edge reinforcement plates and a plurality of connectors, wherein the bottom edge reinforcement plate is arranged below the concrete beam, and the side edge reinforcement plates are respectively arranged on two sides of the concrete beam, and the bottom edge reinforcement plate is rotatably connected to the side reinforcement plates, and the plurality of connectors are divided into two groups and respectively arranged on both sides of the concrete beam, wherein one end of the connector is connected to the bottom edge reinforcement plate, and the other end is connected to the bottom of the concrete slab.
[0006] Preferably, the bottom reinforcement plate and the side reinforcement plate are connected to the concrete beam by organic glue.
[0007] Preferably, the bottom surface of the bottom edge reinforcement plate is a curved structure.
[0008] Preferably, a flexible lining is provided on the bottom surface of the bottom edge reinforcement plate.
[0009] Preferably, the flexible lining is made of an alloy material covered with a high-friction rubber material.
[0010] Preferably, the flexible lining is provided with edge reinforcement strips on both sides along its length axis.
[0011] Preferably, a connecting plate is provided on the edge reinforcement strip, one end of the connecting piece is connected to the connecting plate, and the other end is connected to the bottom surface of the concrete slab.
[0012] Preferably, the connecting member includes a steel cable, an upper hook and a lower hook, the upper hook and the lower hook are respectively connected to the two ends of the steel cable, the upper hook is detachably connected to the connecting buckle on the bottom surface of the concrete slab, and the lower hook is detachably connected to the connecting plate through a hole.
[0013] Preferably, it also includes a load-bearing straight rod, one end of which is connected to the side reinforcement plate through a hinge support, and the other end of which is connected to the steel cable through a metal locking clip.
[0014] A method for installing a lightweight reinforcement structure in a beam and slab area of an old building comprises the following steps: S1: Prefabricate various components in the factory, complete the connection between the flexible lining and the edge reinforcement strip, and complete the installation of the side reinforcement plate and the connector; S2: Connect the side reinforcement plates and the bottom reinforcement plates, and then install the side reinforcement plates and the bottom reinforcement plates at the bottom of the concrete beam; S3: Connect the flexible lining to one end of the connecting member, and connect the other end of the connecting member to the bottom of the concrete slab; S4: Adjust the relative positions of the connectors to complete the final installation.
[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a lightweight reinforcement structure for the beam and slab area of an old building, which provides additional support and reinforcement for the concrete beams by arranging side reinforcement plates and bottom reinforcement plates, and arranging connecting parts for further reinforcement, thereby avoiding the shortcomings of traditional reinforcement methods, such as low reinforcement strength and difficulty in evaluation, and will not weaken the original strength of the beam and slab area.
[0016] Furthermore, the edge reinforcement strip is used to connect the flexible lining and the bottom edge reinforcement plate, and also serves as a mounting base for the connecting plate to ensure a stable connection of the connecting piece.
[0017] Furthermore, relying on the tension of the high-strength steel cable, the load-bearing straight rod can exert pressure on the side reinforcement plates and form a reverse force on both sides of the flexible lining, so that the bottom reinforcement plate and the two side reinforcement plates can simultaneously generate confining pressure on the concrete beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1This is a schematic structural diagram of a lightweight reinforcement structure for a beam and slab area in an old building according to the present invention; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 It is a schematic diagram of the connection between the neutral lining and the high-strength steel cable of the present invention; Figure 4 It is a schematic diagram of the connection between the high-strength steel cable and the stressed straight rod in the present invention; Figure 5 This is a schematic diagram of the connection between the concrete slab and the high-strength steel cable in the present invention; Figure 6 It is a schematic diagram of the structure of the connecting screws in the present invention.
[0019] In the figure, 1. concrete slab; 2. concrete beam; 3. flexible lining; 4. edge reinforcement strip; 5. high-strength steel cable; 6. side reinforcement plate; 7. bottom reinforcement plate; 8. metal hinge; 9. metal locking clip; 10. connecting screw; 11. load-bearing straight rod; 13. connecting buckle; 14. upper end hook; 41. connecting plate; 42. lower end hook. DETAILED DESCRIPTION
[0020] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.
[0021] The present invention discloses a lightweight reinforcement structure for the beam and slab area of an old building, referring to Figure 1 , including a concrete slab 1, a concrete beam 2 and a reinforcement component, the concrete beam 2 is arranged at the bottom of the concrete slab 1, the reinforcement component includes a bottom edge reinforcement plate 7, two side reinforcement plates 6 and a plurality of connectors, the bottom edge reinforcement plate 7 is arranged below the concrete beam 2, and the side reinforcement plates 6 are respectively arranged on two sides of the concrete beam 2. Specifically, the bottom edge reinforcement plate 7 and the side reinforcement plates 6 are connected to the concrete beam 2 by an adhesive (such as epoxy resin steel adhesive) to enhance the lateral stability of the beam body.
[0022] The bottom reinforcement plate 7 is rotatably connected to the side reinforcement plates 6 . Specifically, the bottom reinforcement plate 7 and the two side reinforcement plates 6 are rotatably connected via a metal hinge 8 .
[0023] The bottom surface of the bottom edge reinforcement plate 7 is a curved structure, and a flexible lining 3 is provided on the bottom surface of the bottom edge reinforcement plate 7. The curved structure is to fit the flexible lining 3. The flexible lining 3 is made of an alloy material with a high friction rubber material as the outer cover. The alloy material should be chamfered during production to minimize stress concentration. In addition, the alloy material and the high friction rubber material should be connected by dense ribs or rivets on the outer side of the alloy material to minimize the slippage between the alloy material and the high friction rubber material; the alloy material with a high friction rubber material as the outer cover has the characteristics of high elasticity, high strength and easy processing, and can generate greater friction with the bottom edge reinforcement plate 7 of the steel product, avoiding large slippage when the connecting parts on both sides of the concrete beam 2 exert unbalanced tension on the flexible lining 3.
[0024] The flexible lining 3 is provided with edge reinforcement strips 4 on both sides along the length axis thereof. In this embodiment, the two side edges of the flexible lining 3 close to the side surfaces of the concrete beam 2 are fixedly connected to the edge reinforcement strips 4 by means of rivets.
[0025] The multiple connectors are divided into two groups and are respectively arranged on both sides of the concrete beam 2. A connecting plate 41 is arranged on the edge reinforcement strip 4. One end of the connector is connected to the connecting plate 41, and the other end is connected to the bottom surface of the concrete slab 1. Specifically, the connector includes a steel cable, an upper hook 14 and a lower hook 42. The upper hook 14 and the lower hook 42 are respectively connected to the two ends of the steel cable. The upper hook 14 is detachably connected to the connecting buckle 13 on the bottom surface of the concrete slab 1, and the lower hook 42 is detachably connected to the connecting plate 41 with a hole provided thereon. In this embodiment, the connecting plate 41 is arranged on the side of the edge reinforcement strip 4 away from the flexible lining 3. A plurality of holes are arranged on the connecting plate 41 for assembling the lower end hook 42. The area of the concrete slab 1 close to the concrete beam 2 is perforated by construction equipment, and then the connecting screw 10 is installed and connected. Before installing the connecting screw 10, the hole needs to be grouted to increase the connection strength and stability between the connecting screw 10 and the concrete slab 1. The bottom of the connecting screw 10 is provided with a connecting buckle 13, which is used to connect the upper end hook 14. The connecting piece is composed of components such as a steel cable, an upper end hook 14 and a lower end hook 42, which realizes a detachable connection between the concrete slab 1 and the reinforcement assembly, which is not only convenient for construction and maintenance, but also can flexibly adjust the layout and stress state of the reinforcement structure according to actual needs. The upper hook 14 is tightly connected to the connecting buckle 13 on the bottom surface of the concrete slab 1, ensuring that the reinforcement structure can be firmly attached to the original building structure; and the lower hook 42 is reliably connected to the connecting plate 41 arranged on the bottom reinforcement plate 7 through the hole, thereby forming a complete force transmission path.
[0026] It also includes a load-bearing straight rod 11 , one end of which is connected to the side reinforcement plate 6 through a hinge support, and the other end is connected to the middle part of the steel cable through a metal locking clip 9 .
[0027] The lightweight reinforcement structure of the beam-slab area in an old building of the present invention relies on the tension of the high-strength steel cable 5, so that the force-bearing straight rod 11 can apply pressure to the side reinforcement plate 6, and form a reverse force on both sides of the flexible lining 3, so that the bottom reinforcement plate 7 and the two side reinforcement plates 6 can simultaneously generate confining pressure on the concrete beam 2. Therefore, on the basis of reinforcing the beam-slab area with their own strength, the bottom reinforcement plate 7 and the two side reinforcement plates 6 also generate confining pressure on the concrete beam 2 through the tension of the high-strength steel cable 5, further enhancing the reinforcement effect on the concrete beam 2.
[0028] The present invention also discloses a method for installing a lightweight reinforcement structure in a beam and slab area of an old building, comprising the following steps: S1: Prefabricate various components in the factory, complete the connection between the flexible lining 3 and the edge reinforcement strip 4, and complete the installation of the side reinforcement plate 6 and the load-bearing straight rod 11; S2: Connect the side reinforcement plate 6 and the bottom reinforcement plate 7 with a metal hinge 8, and then install the side reinforcement plate 6 and the bottom reinforcement plate 7 on the lower part of the concrete beam 2 by adhesive; S3: Connect the flexible lining 3 to one end of the connecting piece, and connect the other end of the connecting piece to the bottom of the concrete slab 1. Specifically, a through hole for installing the connecting screw 10 is opened on the concrete slab 1, and the flexible lining 3 is connected to one end of the high-strength steel cable 5, and the other end of the high-strength steel cable 5 is connected to the connecting screw 10; at the same time, the high-strength steel cable 5 is connected to the load-bearing straight rod 11; S4: Adjust the relative position of the connecting parts, that is, adjust the relative position of the high-strength steel cable 5 and the stressed straight rod 11 to complete the final installation.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.
Claims
1. A lightweight reinforcement structure for the beam and slab area of an old building, characterized in that: The invention comprises a concrete slab (1), a concrete beam (2) and a reinforcement component, wherein the concrete beam (2) is arranged at the bottom of the concrete slab (1), and the reinforcement component comprises a bottom reinforcement plate (7), two side reinforcement plates (6) and a plurality of connecting members, wherein the bottom reinforcement plate (7) is arranged below the concrete beam (2), the side reinforcement plates (6) are respectively arranged on two side surfaces of the concrete beam (2), the bottom reinforcement plate (7) is rotatably connected to the side reinforcement plates (6), and the plurality of connecting members are divided into two groups and are respectively arranged on both sides of the concrete beam (2), one end of the connecting member is connected to the bottom reinforcement plate (7), and the other end is connected to the bottom of the concrete slab (1).
2. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 1, characterized in that: The bottom reinforcement plate (7) and the side reinforcement plate (6) are both connected to the concrete beam (2) by using organic glue.
3. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 1, characterized in that: The bottom surface of the bottom edge reinforcement plate (7) is a curved structure.
4. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 3, characterized in that: The bottom surface of the bottom edge reinforcement plate (7) is provided with a flexible lining layer (3).
5. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 4, characterized in that: The flexible lining (3) is made of an alloy material with a high-friction rubber material as its outer cover.
6. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 1, characterized in that: The flexible lining (3) is provided with edge-sealing reinforcement strips (4) on both sides along the length axis thereof.
7. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 6, characterized in that: A connecting plate (41) is arranged on the edge sealing reinforcement strip (4); one end of the connecting piece is connected to the connecting plate (41), and the other end is connected to the bottom surface of the concrete slab (1).
8. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 7, characterized in that: The connecting member comprises a steel cable, an upper hook (14) and a lower hook (42), wherein the upper hook (14) and the lower hook (42) are respectively connected to the two ends of the steel cable, the upper hook (14) is detachably connected to a connecting buckle (13) on the bottom surface of the concrete slab (1), and the lower hook (42) is detachably connected to a connecting plate (41) through a hole provided thereon.
9. The lightweight reinforcement structure for the beam and slab area of an old building according to claim 8, characterized in that: It also comprises a stress-bearing straight rod (11), one end of which is connected to the side reinforcement plate (6) via a hinge support, and the other end of which is connected to the steel cable via a metal locking clip (9).
10. A method for installing a lightweight reinforcement structure in a beam and slab area of an old building as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Prefabricate various components in the factory, complete the connection between the flexible lining (3) and the edge reinforcement strip (4), and complete the installation of the side reinforcement plate (6) and the connecting piece; S2: Connect the side reinforcement plate (6) and the bottom reinforcement plate (7), and then install the side reinforcement plate (6) and the bottom reinforcement plate (7) on the lower part of the concrete beam (2); S3: Connecting the flexible lining (3) to one end of the connecting member, and connecting the other end of the connecting member to the bottom of the concrete slab (1); S4: Adjust the relative positions of the connectors to complete the final installation.