House building beam bottom reinforcing device and reinforcing method suitable for special-shaped section

Abstract

The application relates to a reinforcing device for the bottom of a beam with a special-shaped section and a reinforcing method, the device comprises a supporting assembly and a frame assembly; the supporting assembly comprises an upwardly-inclined supporting rod, the top end of the supporting rod is connected to the lower surface of the frame assembly; the frame assembly comprises a stress plate and a plurality of U-shaped plates connected above the stress plate, the stress plate is arranged along the length direction of the beam, and the lower surface of the stress plate is fixedly connected with the top end of the supporting rod. The method can quickly reinforce the bottom of the beam, the supporting plate and the stress plate are only needed to be fixed, then the position of each U-shaped plate is adjusted by using a jackscrew, the bottom of the beam can be supported, the steps are compact, the implementation effect is good, the amount of used molds is reduced, and the construction cost is lowered.

Description

Technical Field

[0001] This invention belongs to the field of beam bottom reinforcement technology for building construction, and particularly relates to a beam bottom reinforcement device and reinforcement method suitable for irregular cross-sections. Background Technology

[0002] Most roof beams are made of concrete and steel reinforcement. The main beams are crucial building components that support the long-term stability of a house. However, some roof beams, due to their age, have begun to exhibit various quality problems. If the beam base does not meet the required standards, it will directly affect the overall usability of the house. Therefore, during routine inspections, it is necessary to promptly reinforce the beam base after any problems are discovered.

[0003] In the beam structure, the following four problems are prone to occur at the bottom of the beam: 1. Insufficient load-bearing capacity; 2. Multiple cracks; 3. Exposed and corroded steel bars; 4. Reduced safety performance, etc.

[0004] Currently, methods for reinforcing the bottom of beams include: 1. Steel bonding method; 2. Rebar installation method; 3. Anchoring method; 4. Carbon fiber method; 5. Grouting method, etc.

[0005] Of these methods, the most economical is rebar reinforcement, while the most aesthetically pleasing is carbon fiber reinforcement. Among these methods, construction is relatively convenient and quick when the beam's overall cross-section is consistent.

[0006] Of the above reinforcement methods, grouting has the longest retention time. When implementing grouting, the bottom of the beam needs to be supported first to reduce beam deformation. Then, formwork is erected and reinforcement bars are installed before finally pouring the grout to strengthen the bottom of the beam.

[0007] Grouting is relatively easy to implement when reinforcing ordinary beams. However, due to the diversity of current building structures, irregular beams are frequently encountered, with multiple dimensions and even significant differences in size. These irregular beams undoubtedly pose significant challenges to reinforcement. The main problems are: the large number of dimensions involved makes support components more cumbersome and difficult to relocate; multiple support components may even be needed, severely impacting construction progress and increasing construction costs. Summary of the Invention

[0008] The present invention aims to provide a simple and effective beam bottom reinforcement device and reinforcement method for buildings with irregular cross-sections.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a beam bottom reinforcement device for buildings with irregular cross-sections, comprising a support assembly and a frame assembly; the support assembly includes an upwardly inclined support rod, the top end of which is connected to the lower surface of the frame assembly; the frame assembly includes a load-bearing plate and a plurality of U-shaped plates connected above the load-bearing plate, the load-bearing plate being arranged along the beam length direction, and the lower surface of the load-bearing plate being fixedly connected to the top end of the support rod.

[0010] The length of the support rod is adjustable.

[0011] There are two support rods, which are symmetrically arranged below the beam.

[0012] A connecting plate is hinged to the bottom of the support rod, and a support plate is hinged to the top of the support rod. The force-bearing plate is fixedly connected to the support plate.

[0013] Each U-shaped plate is evenly distributed along the length of the load-bearing plate.

[0014] The connecting plate has connection holes.

[0015] The load-bearing plate is provided with threaded holes, and a set screw is screwed into the threaded holes. The top of the set screw is positioned on the lower surface of the U-shaped plate.

[0016] The number of set screws is at least the same as the number of U-shaped plates, and the set screws are designed to match the U-shaped plates.

[0017] The reinforcement method using the above-mentioned beam bottom reinforcement device for irregular cross-section buildings includes the following steps in sequence: (1) fixing the bottom ends of two support rods to two opposite side walls of the building using a connecting plate; connecting the support plates of the two support rods to the load-bearing plate; (2) screwing the top screws onto the load-bearing plate; (3) placing each U-shaped plate above the top screws, so that the top screws rest on the lower surface of the U-shaped plate; (4) adjusting the length of each top screw so that the U-shaped plate is clamped between the top screws and the beam; (5) filling the space between the side of the U-shaped plate and the beam with structural adhesive to complete the beam reinforcement.

[0018] In step (1), the connection method between the support plate and the load-bearing plate is as follows: adjust the length of the support rod to ensure that the two support plates are located at 1 / 3 and 2 / 3 of the length of the load-bearing plate, respectively, and connect the support plate and the load-bearing plate.

[0019] Through the above technical solutions, the technical effects of the present invention are as follows: 1. The device described in the present invention can quickly reinforce the bottom of beams, especially suitable for beams with irregular cross-sections. Only one set of molds is needed, resulting in low construction costs and good construction effects; 2. The top screw and U-shaped plate work together to fix the U-shaped plate, thereby reinforcing the bottom of the beam, facilitating formwork and pouring, and improving the strength of the beam bottom; 3. The length of the support plate is adjustable, which can be adjusted according to the length of the beam, making it widely applicable; 4. The method described in the present invention can quickly reinforce the bottom of beams. Simply fix the support plate and the load-bearing plate, and then use the top screws to adjust the position of each U-shaped plate to achieve beam bottom support. The steps are compact, the implementation effect is good, the amount of molds used is reduced, and thus the construction cost is reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0021] Suitable for beam bottom reinforcement devices in building construction with irregular cross-sections, such as Figure 1 As shown, it includes support components and frame components. During implementation, the support components support the frame components, providing them with support force, while the frame components support the bottom of the beam, thereby reinforcing the beam.

[0022] The support assembly includes an upwardly inclined support rod 6, the length of which is adjustable to accommodate different beams, thus broadening the applicability of the device. Once the length of the support rod 6 is adjusted to the appropriate position, it can be fixed. Adjustable length of the support rod 6 is a mature existing technology and can be implemented using existing methods.

[0023] A connecting plate 7 is hinged to the bottom end of the support rod 6, and a support plate 1 is hinged to the top end of the support rod 6. The frame assembly can be connected to the support plate 1. The connecting plate 7 is provided with a connecting hole 8. By inserting bolts into the connecting holes 8 on the connecting plate 7, the connecting plate 7 is connected to the vertical wall 9 of the building, thereby fixing the connecting plate 7.

[0024] In this embodiment, there are two support rods 6, which are symmetrically arranged below the beam to improve the support for the frame assembly. The connecting plates 7 of the two support rods 6 are connected to two oppositely arranged vertical walls 9.

[0025] The support plate 1 is set horizontally to support the frame components.

[0026] The frame assembly includes a load-bearing plate 2 and multiple U-shaped plates 4 connected above the load-bearing plate 2. The load-bearing plate 2 is arranged along the length of the beam, and the lower surface of the load-bearing plate 2 is fixedly connected to the top of the support rod 6.

[0027] The U-shaped plates 4 are evenly distributed along the length of the load-bearing plate 2. The user can set the number of U-shaped plates 4 according to the length of the beam and the degree of reinforcement required. Basically, the distance between two U-shaped plates 4 is 20 cm.

[0028] The connection between the U-shaped plate 4 and the load-bearing plate 2 is achieved using set screws 3. The number of set screws 3 is at least the same as the number of U-shaped plates 4, and the set screws 3 are set in accordance with the U-shaped plate 4.

[0029] To accommodate the set screw 3, a threaded hole is provided on the load-bearing plate 2. The set screw 3 is screwed into the threaded hole, and the top end of the set screw 3 is positioned on the lower surface of the U-shaped plate 4.

[0030] During operation, one end of the support rod 6 is connected to the vertical wall 9 of the building, and the other end of the support rod 6 is connected to the load-bearing plate 2. Then, the top screw 3 is connected to the load-bearing plate 2, and the U-shaped plate 4 is supported by the top screw 3 to provide support for the bottom of the beam and to reinforce the bottom of the beam.

[0031] With the cooperation of the set screw 3 and the U-shaped plate 4, this device can first reinforce beams with irregular cross sections. It is highly flexible in use and more reusable than ordinary molds.

[0032] The device described in this invention can quickly reinforce the bottom of beams, and is especially suitable for beams with irregular cross-sections. It only requires one set of molds, resulting in low construction costs and good construction effects.

[0033] This embodiment also discloses a reinforcement method using the above-mentioned beam bottom reinforcement device suitable for irregular cross-section buildings, the method comprising the following steps in sequence:

[0034] (1) Use the connecting plate 7 to fix the bottom ends of the two support rods 6 to the two opposite side walls of the building respectively; connect the support plate 1 of the two support rods 6 to the load plate 2.

[0035] The connecting plate 7 is fixed to the vertical wall 9 of the building by means of expansion bolts.

[0036] In this step, the connection method between the support plate 1 and the load-bearing plate 2 is as follows: the length of the support rod 6 is adjusted to ensure that the two support plates 1 are located at 1 / 3 and 2 / 3 of the length of the load-bearing plate 2 respectively, and the support plate 1 and the load-bearing plate 2 are connected.

[0037] (2) Screw the top screw 3 onto the load-bearing plate 2; depending on the degree of reinforcement required for the beam, set a top screw 3 every 20 cm and screw the top screw 3 onto the load-bearing plate 2.

[0038] (3) Place each U-shaped plate 4 above the set screw 3, so that the set screw 3 rests on the lower surface of the U-shaped plate 4. The set screw 3 and the U-shaped plate 4 are fixed by the friction between the set screw 3 and the U-shaped plate 4.

[0039] (4) Adjust the length of each set screw 3 so that the U-shaped plate 4 is clamped between the set screw 3 and the beam.

[0040] (5) Fill the space between the U-shaped plate and the beam with structural adhesive to complete the reinforcement of the beam.

[0041] The method described in this invention can quickly reinforce the bottom of a beam. Simply fix the support plate 1 and the load-bearing plate 2, and then use the top screws 3 to adjust the position of each U-shaped plate 4 to achieve beam bottom support. The steps are compact, the implementation effect is good, the amount of molds used is reduced, and thus the construction cost is reduced.

Claims

1. A reinforcement method for beam bottom reinforcement devices used in building construction with irregular cross-sections, characterized in that: The method includes the following steps in sequence: (1) using a connecting plate to fix the bottom ends of the two support rods to the two opposite side walls of the building respectively; connecting the support plates of the two support rods to the load-bearing plate; (2) screwing the top screws onto the load-bearing plate; (3) placing each U-shaped plate above the top screws, so that the top screws are against the lower surface of the U-shaped plate; (4) adjusting the length of each top screw so that the U-shaped plate is clamped between the top screws and the beam; (5) filling the space between the side of the U-shaped plate and the beam with structural adhesive to complete the reinforcement of the beam; The beam bottom reinforcement device for buildings with irregular cross sections includes a support assembly and a frame assembly; the support assembly includes an upwardly inclined support rod, the top of which is connected to the lower surface of the frame assembly; the frame assembly includes a load-bearing plate and multiple U-shaped plates connected above the load-bearing plate, the load-bearing plate is arranged along the length of the beam, and the lower surface of the load-bearing plate is fixedly connected to the top of the support rod. The length of the support rod is adjustable; There are two support rods, which are symmetrically arranged below the beam; A connecting plate is hinged to the bottom end of the support rod, and a support plate is hinged to the top end of the support rod. The force-bearing plate is fixedly connected to the support plate. The load-bearing plate is provided with threaded holes, and a set screw is screwed into the threaded holes. The top of the set screw is positioned on the lower surface of the U-shaped plate.

2. The reinforcement method according to claim 1, characterized in that: In step (1), the connection method between the support plate and the load-bearing plate is as follows: adjust the length of the support rod to ensure that the two support plates are located at 1 / 3 and 2 / 3 of the length of the load-bearing plate, respectively, and connect the support plate and the load-bearing plate.

3. The reinforcement method according to claim 1, characterized in that: Each U-shaped plate is evenly distributed along the length of the load-bearing plate.

4. The reinforcement method according to claim 3, characterized in that: The connecting plate has connection holes.

5. The reinforcement method according to claim 4, characterized in that: The number of set screws is at least the same as the number of U-shaped plates, and the set screws are designed to match the U-shaped plates.

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