Frame column widening and fixing structure

Abstract

The utility model discloses a frame column widening and fixing structure in the technical field of building structure reinforcement, which comprises external longitudinal bars which are longitudinally arranged along an original frame column and penetrate through a frame beam, internal longitudinal bars are arranged on the inner sides of the external longitudinal bars, the internal longitudinal bars are arranged around the two sides of the frame beam, and dense stirrups and equivalent stirrups are welded perpendicular to the external longitudinal bars. The reinforcing stirrups are arranged in reinforcing areas at the upper end and the lower end of a joint formed by an original frame column and a frame beam, the equivalent stirrups are arranged in joint areas formed by the original frame column and the frame beam, the equivalent stirrups penetrate through beam penetrating holes formed in the frame beam and are fixedly welded to external longitudinal bars, and embedded longitudinal bars used for improving stability are further arranged in the original frame column. According to the fixing structure of the device, the bearing capacity of the frame column can be remarkably enhanced, the structure is more stable when bearing external force, the repaired widened frame column meets the requirement for structural safety, durability is improved, the service life of the whole structure is prolonged, and the fixing structure is suitable for being used in building reinforcement engineering.

Description

Technical Field

[0001] This utility model relates to the field of building structure reinforcement technology, and in particular to a frame column widening and fixing structure. Background Technology

[0002] As a crucial supporting component in building structures, frame columns bear the important responsibility of supporting and transferring building loads. During the use of a building structure, due to factors such as increased load, foundation settlement, or changes in the external environment, the load-bearing capacity of frame columns gradually decreases. When the load-bearing capacity of frame columns is insufficient, it will seriously affect the overall safety and stability of the building, necessitating necessary reinforcement measures for the frame columns.

[0003] If the frame column itself has no obvious cracks or damage, it can be reinforced and repaired by increasing the cross-sectional dimensions of the frame column to improve its load-bearing capacity and stiffness. Current technology typically involves fully covering the outside of the original frame column with external stirrups, filling the gaps between the external stirrups and the original frame column with concrete, and then tightening the original frame column and external stirrups with embedded reinforcement bars. However, in practice, the stress at the joints between the original frame column and beam is different from other points. Strengthening and stabilizing solely through embedded reinforcement bars and external stirrups affects the load-bearing capacity at the frame column-beam joints, causing the widened and fixed structure to fail. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects in the prior art and provide a frame column widening and fixing structure. By strengthening the connection and fixing at the frame beam-column joint, the structural stability of the widened frame column is improved, and the load-bearing capacity of the repaired frame column is enhanced.

[0005] The purpose of this utility model is achieved as follows: a frame column widening and fixing structure includes an external longitudinal reinforcement that runs through the frame beam along the longitudinal direction of the original frame column. An internal longitudinal reinforcement is provided inside the external longitudinal reinforcement. The internal longitudinal reinforcement runs around both sides of the frame beam and is welded with reinforced stirrups and equivalent stirrups perpendicular to the external longitudinal reinforcement. The reinforced stirrups are located in the reinforced areas at the upper and lower ends of the node formed by the original frame column and the frame beam. The equivalent stirrups are located in the node area formed by the original frame column and the frame beam. The equivalent stirrups pass through the beam holes opened on the frame beam and are fixedly welded to the external longitudinal reinforcement. The original frame column is also provided with implanted longitudinal reinforcement for increasing stability.

[0006] In operation, this utility model sets external longitudinal reinforcement on both sides of the original frame column. According to the distribution of the connection nodes between the frame beam and the original frame column, denser stirrups and equivalent stirrups are welded on the external longitudinal reinforcement to increase the connection strength at the connection nodes between the frame beam and the widened frame column, improve the structural stability of the widened frame column, and enhance the load-bearing capacity of the repaired frame column.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] First, the fixing structure of this device can significantly enhance the load-bearing capacity of the frame columns, making the structure more stable when subjected to external forces. The widened frame columns after repair meet the requirements of structural safety and improve durability, which helps to extend the service life of the overall structure.

[0009] Secondly, by welding equivalent stirrups and denser stirrups at the connection nodes between the frame beams and the original frame columns, as well as above and below the connection nodes, the structural strength at the connection nodes is enhanced, thus preventing damage caused by stress concentration at the nodes.

[0010] Third, the fixed structure of this device is easy to construct, requires no large equipment, uses few materials, and has low cost. It can be reinforced by adjusting the quantity and location of external longitudinal bars and stirrups according to frame columns of different specifications and sizes, making it highly adaptable.

[0011] Furthermore, the implanted longitudinal reinforcement is located inside the internal longitudinal reinforcement, with one end of the implanted longitudinal reinforcement extending into the frame beam; the length of the implanted longitudinal reinforcement extending into the frame beam is 25 times the diameter of the implanted longitudinal reinforcement, and the implanted longitudinal reinforcement is symmetrically implanted on both the upper and lower sides of the frame beam; the implanted longitudinal reinforcement is used to tighten the stirrups and longitudinal reinforcement, thereby improving the connection strength of the fixed structure.

[0012] Furthermore, the slope ratio of the internal longitudinal reinforcement bars as they pass around the two sides of the frame beam is 1:6, which helps to ensure that the internal longitudinal reinforcement bars can evenly distribute stress when passing around the beam. When subjected to external loads, this helps the overall reinforced structure resist deformation and damage, thereby improving the stability and durability of the reinforced structure. The 1:6 slope ratio also helps to utilize the tensile strength of the steel bars, improves the load-bearing capacity of the widened frame columns, and facilitates on-site construction layout, reducing the complexity and uncertainty in the construction process and improving construction efficiency and quality.

[0013] Furthermore, after the equivalent stirrups pass through, sealant is injected into the through-beam hole. The sealant is injected under pressure to fill the gaps inside the through-beam hole, forming a continuous, leak-proof sealing layer. This prevents moisture and humidity from seeping into the structure, helping to keep the structure dry and stable, preventing corrosion and damage caused by moisture erosion, and preventing dust, sand, and other debris from entering the through-beam hole, avoiding accumulation inside the hole that could cause wear or blockage, thus extending the structure's service life. The sealant has a certain degree of elasticity and extensibility, which can adapt to the slight deformations caused by temperature changes, loads, and other factors during use, helping to maintain the integrity and stability of the structure.

[0014] Furthermore, the external longitudinal reinforcement is symmetrically arranged on both sides of the original frame column, and the original frame column and the external longitudinal reinforcement together form a widened frame column, and concrete is poured between the original frame column and the external longitudinal reinforcement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the frame column widening and fixing structure of this utility model.

[0016] In the diagram above, 1 is the frame beam, 2 is the original frame column, 3 is the widened frame column, 4 is the external longitudinal reinforcement, 5 is the embedded longitudinal reinforcement, 6 is the internal longitudinal reinforcement, 7 is the dense stirrup, 8 is the equivalent stirrup, and 9 is the through-beam hole. Detailed Implementation

[0017] like Figure 1 The illustrated frame column widening and fixing structure includes an external longitudinal reinforcement 4 that runs through the frame beam 1 along the longitudinal direction of the original frame column 2. An internal longitudinal reinforcement 6 is provided inside the external longitudinal reinforcement 4. The internal longitudinal reinforcement 6 runs around both sides of the frame beam 1 and is welded perpendicular to the external longitudinal reinforcement 4 with a reinforced stirrup 7 and an equivalent stirrup 8. The reinforced stirrup 7 is located in the reinforced area at the upper and lower ends of the node formed by the original frame column 2 and the frame beam 1. The equivalent stirrup 8 is located in the node area formed by the original frame column 2 and the frame beam 1. The equivalent stirrup 8 passes through the beam hole 9 opened on the frame beam 1 and is fixedly welded to the external longitudinal reinforcement 4. The original frame column 2 is also provided with an implanted longitudinal reinforcement 5 for increasing stability.

[0018] The embedded longitudinal reinforcement 5 is placed inside the internal longitudinal reinforcement 6, with one end of the embedded longitudinal reinforcement 5 extending into the frame beam 1; the length of the embedded longitudinal reinforcement 5 extending into the frame beam 1 is 25 times the diameter of the embedded longitudinal reinforcement 5, and the embedded longitudinal reinforcement 5 is symmetrically embedded on the upper and lower sides of the frame beam 1; the embedded longitudinal reinforcement 6 is used to tighten the stirrups and longitudinal reinforcement, thereby improving the connection strength of the fixed structure.

[0019] The slope ratio of the internal longitudinal reinforcement 6 as it winds around both sides of the frame beam 1 is 1:6. This helps to ensure that the internal longitudinal reinforcement 6 can evenly distribute stress when it winds around the beam. When subjected to external loads, it helps the overall reinforced structure resist deformation and failure, thereby improving the stability and durability of the reinforced structure. The 1:6 slope ratio also helps to give full play to the tensile properties of the steel bars, improve the load-bearing capacity of the widened frame column 3, and facilitates on-site construction layout, reducing the complexity and uncertainty in the construction process and improving construction efficiency and quality.

[0020] After the equivalent stirrups pass through, sealant is injected into the through-beam hole 9. The sealant is injected under pressure to fill the gaps inside the through-beam hole 9, forming a continuous, leak-proof sealing layer. This prevents moisture and humidity from seeping into the structure, helping to keep the structure dry and stable, preventing corrosion and damage caused by moisture erosion, and preventing dust, sand, and other debris from entering the through-beam hole, avoiding accumulation inside the hole that could cause wear or blockage, thus extending the structure's service life. The sealant has a certain degree of elasticity and extensibility, which can adapt to the slight deformations caused by temperature changes and loads during use, helping to maintain the integrity and stability of the structure.

[0021] External longitudinal reinforcement 4 is symmetrically arranged on both sides of the original frame column 2. The original frame column 2 and the external longitudinal reinforcement 4 together form a widened frame column 3. Concrete is poured between the original frame column 2 and the external longitudinal reinforcement 4.

[0022] In operation, the original frame column 2 and frame beam 1 are first chiseled to remove slag and dust. Through holes are then made according to the design points of the reinforcement structure. External longitudinal reinforcement 4 is then installed on both sides of the original frame column 2. Based on the distribution of the connection nodes between the frame beam 1 and the original frame column 2, reinforced stirrups 7 and equivalent stirrups 8 are welded onto the external longitudinal reinforcement 4. The number and density of the reinforced stirrups 7 and equivalent stirrups 8 can be adjusted according to the size of the frame column. To tighten the stirrups and longitudinal reinforcement and enhance the stability of the fixed structure, embedded longitudinal reinforcement 5 is installed inside the internal longitudinal reinforcement 6. One end of the embedded longitudinal reinforcement 5 extends into the frame beam 1, with a length 25 times the diameter of the embedded longitudinal reinforcement 5. After the surface reinforcement is installed, concrete is poured. During the pouring process, the concrete is ensured to be dense and uniform. When pouring in layers, the thickness of each layer is controlled at 20-30cm. A vibrator is used to compact the concrete, ensuring its density. Finally, the fixed structure is cured until the reinforcement work is completed. This device increases the connection strength at the joint between the frame beam and the widened frame column, effectively improving the structural stability of the widened frame column 3. The repaired widened frame column 3 meets the structural safety requirements and improves durability, which helps to extend the service life of the overall structure. The fixed structure of this device is easy to construct, requires no large equipment, uses less material, and has low cost. It can be used to strengthen the frame columns of different specifications by adjusting the quantity and position distribution of external longitudinal bars and stirrups. It is highly adaptable and suitable for use in building reinforcement projects.

[0023] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A frame column widening and fixing structure, characterized in that: The system includes external longitudinal reinforcement bars that run through the frame beam along the original frame column. The external longitudinal reinforcement bars have internal longitudinal reinforcement bars inside them. The internal longitudinal reinforcement bars run around both sides of the frame beam and are welded with reinforced stirrups and equivalent stirrups perpendicular to the external longitudinal reinforcement bars. The reinforced stirrups are located in the reinforced areas at the upper and lower ends of the node formed by the original frame column and the frame beam. The equivalent stirrups are located in the node area formed by the original frame column and the frame beam. The equivalent stirrups pass through the beam holes opened on the frame beam and are fixedly welded to the external longitudinal reinforcement bars. The original frame column also has implanted longitudinal reinforcement bars for increasing stability.

2. The frame column widening and fixing structure according to claim 1, characterized in that: The implanted longitudinal reinforcement is located inside the internal longitudinal reinforcement, and one end of the implanted longitudinal reinforcement extends into the frame beam.

3. The frame column widening and fixing structure according to claim 2, characterized in that: The length of the implanted longitudinal reinforcement extending into the frame beam is 25 times the diameter of the implanted longitudinal reinforcement, and the implanted longitudinal reinforcement is symmetrically implanted on both the upper and lower sides of the frame beam.

4. The frame column widening and fixing structure according to claim 1, characterized in that: The slope ratio of the internal longitudinal reinforcement bars that wrap around both sides of the frame beam is 1:

6.

5. A frame column widening and fixing structure according to any one of claims 1 to 4, characterized in that: After the equivalent stirrups pass through the through-beam hole, sealant is injected into it.

6. A frame column widening and fixing structure according to any one of claims 1 to 4, characterized in that: The external longitudinal reinforcement is symmetrically arranged on both sides of the original frame column, and the original frame column and the external longitudinal reinforcement together form a widened frame column. Concrete is poured between the original frame column and the external longitudinal reinforcement.

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