CN-224228317-U - Reinforcing member for steel beam

CN224228317UCN 224228317 UCN224228317 UCN 224228317UCN-224228317-U

Abstract

The utility model relates to the field of steel structure building construction, in particular to a reinforcing member of a steel beam, which comprises the steel beam and a plurality of sealing plates arranged on the steel beam, wherein the sealing plates are arranged as cavities capable of sealing the abdomen of the steel beam to form a closed reinforcing cavity, at least one sealing plate is provided with a material injection hole communicated with the reinforcing cavity so as to fill concrete used for reinforcing the steel beam into the reinforcing cavity through the material injection hole, and at least one anchoring rib part is also arranged in the reinforcing cavity and used for connecting the steel beam with the concrete in the reinforcing cavity. Therefore, compared with the existing reinforcing mode requiring rust removal or cutting of the steel beam, the steel beam structure not only remarkably improves the overall bearing capacity and rigidity of the steel beam, but also better meets the structural stability requirement of the steel beam under long-term service.

Inventors

YANG RUIFANG
GAO TAO
GAO PENGFEI
ZHANG GUANGCAN
ZHAO LIYONG
QIU JINKAI

Assignees

中冶检测认证有限公司

Dates

Publication Date: 20260512
Application Date: 20250610

Claims (10)

1. A reinforcing member for a steel beam, comprising a steel beam and a plurality of sealing plates (2) arranged on the steel beam, wherein the plurality of sealing plates (2) are arranged to be capable of sealing an abdomen cavity of the steel beam so as to form a closed reinforcing cavity (3); At least one the injecting hole (4) communicated with the reinforcing cavity (3) is formed in the sealing plate (2), concrete used for reinforcing the steel beam is filled in the reinforcing cavity (3), at least one anchoring rib part (5) is further arranged in the reinforcing cavity (3), and the anchoring rib part (5) is used for connecting the steel beam with the concrete in the reinforcing cavity (3).
2. The steel girder reinforcement member according to claim 1, characterized in that the steel girder comprises a i-beam (1), and the sealing plate (2) is arranged to sealingly abut against the ends of flanges (101) at both sides of the i-beam (1) to seal the cavities at both sides of the i-beam (1).
3. The steel beam reinforcement member according to claim 2, wherein a plurality of first fixing bars (6) are disposed in the reinforcement cavity (3), two ends of the first fixing bars (6) extend toward the flange (101) and are fixedly connected to the flange (101), and the plurality of first fixing bars (6) are disposed at intervals along the length direction of the i-beam (1).
4. A reinforcing element for steel girders according to claim 3, characterized in that the sealing plate (2) comprises a steel mesh against which the first fixing bars (6) are arranged, the steel mesh being detachably connected to the first fixing bars (6).
5. A reinforcing element for a steel beam according to claim 3, characterized in that the reinforcing cavity (3) is further provided with a second fixing bar (7) connected to the first fixing bar (6), the second fixing bar (7) extending in the longitudinal direction of the steel beam.
6. The steel beam reinforcement member according to claim 1, wherein a plurality of reinforcing ribs (8) are provided along the length direction of the steel beam, the reinforcing ribs (8) divide the interior of the reinforcing cavity (3) into a plurality of sub-reinforcing cavities (301), and the sealing plate (2) is provided with a plurality of material injection holes (4) which are communicated with the sub-reinforcing cavities (301) in a one-to-one correspondence manner.
7. A reinforcement member for steel beams according to claim 1, wherein said anchor rib member (5) comprises a first anchor rib (501) and a second anchor rib (502) fixedly connected to each other, and one end of each of said first anchor rib (501) and said second anchor rib (502) is connected to an inner side wall surface of said steel beam.
8. The steel beam reinforcement member according to claim 7, wherein the first anchor rib (501) and the second anchor rib (502) extend in directions perpendicular to each other.
9. The steel girder reinforcement member according to claim 8, wherein the extension length of either one of the first and second anchor bars (501, 502) on both sides of the other is equal to each other.
10. A reinforcing member for steel beams according to claim 1, characterised in that the outer surface of the steel beam is sprayed with a corrosion resistant coating (9).

Description

Reinforcing member for steel beam Technical Field The utility model relates to the field of steel structure building construction, in particular to a reinforcing member of a steel beam. Background In building structure engineering, steel structures are widely applied to the fields of factory buildings, bridges, high-rise buildings, municipal facilities and the like due to the advantages of high strength, rapid construction, high bearing capacity and the like. However, steel structural members exposed to open air for a long period of time often face adverse factors such as wind and sun exposure, rain and snow erosion, air humidity and pollutant action, and are extremely susceptible to corrosion phenomena, especially in coastal, high-humidity or industrial atmosphere serious pollution areas. Corrosion not only reduces the cross-sectional size of the steel, but also weakens the bearing capacity thereof, and affects the safety and durability of the overall structure, so that reinforcement treatment is required in time. In the prior art, the conventional reinforcement method for the corrosion component mainly comprises mechanical rust removal or sand blasting treatment to remove the rust layer, and recoating the corrosion-resistant coating after exposing the fresh metal surface to restore the protection function. However, this approach has the significant drawback that, on the one hand, the effective cross section of the original component is further weakened after removal of the rust layer, resulting in a reduction in the rigidity and strength of the component, and, on the other hand, the method mainly solves the problem of corrosion protection, has a limited load-bearing capacity-improving effect on the structural body, and is not ideal especially in cases where the degree of rust is severe or the component has been significantly deformed. Therefore, a reinforcement technical scheme capable of effectively improving the bearing performance of the structure and avoiding further damaging the components is needed to meet the requirements of safety and durability of the steel structure in the long-term service process. Disclosure of utility model The utility model aims to solve the problem that the hardness and strength of a steel beam are reduced after rust removal in the prior art. In order to achieve the above object, the present utility model provides a reinforcement member for a steel beam, comprising a steel beam and a plurality of sealing plates provided on the steel beam, the plurality of sealing plates being provided to be capable of sealing an abdomen cavity of the steel beam to form a closed reinforcement cavity; The material injection hole communicated with the reinforcing cavity is formed in at least one sealing plate, the reinforcing cavity is filled with concrete for reinforcing the steel beam, and at least one anchoring rib part is further arranged in the reinforcing cavity and used for connecting the steel beam with the concrete in the reinforcing cavity. Optionally, the steel beam comprises a steel I-beam, and the sealing plate is arranged to be in sealing contact with the end parts of flanges at two sides of the steel I-beam so as to seal the cavities at two sides of the steel I-beam. Optionally, a plurality of first fixed steel bars are arranged in the reinforcing cavity, two ends of each first fixed steel bar extend towards the direction of the flange and are fixedly connected to the flange, and the plurality of first fixed steel bars are arranged at intervals along the length direction of the I-steel. Optionally, the sealing plate includes a steel mesh, and the first fixing reinforcement may be disposed to abut against the steel mesh, and detachably connected between the steel mesh and the first fixing reinforcement. Optionally, the reinforcing cavity is further provided with a second fixing bar fixedly connected to the first fixing bar, and the second fixing bar extends along the length direction of the steel beam. Optionally, be provided with a plurality of stiffening ribs along girder steel's length direction, a plurality of stiffening ribs will consolidate the intracavity and separate into a plurality of son and consolidate the chamber, offered a plurality of notes material holes that the one-to-one communicated with a plurality of son consolidates the chamber on the closing plate. Optionally, the anchor rib component comprises a first anchor rib and a second anchor rib which are fixedly connected with each other, wherein one ends of the first anchor rib and the second anchor rib are respectively connected to the inner side wall surface of the steel beam. Optionally, the extending directions of the first anchoring rib and the second anchoring rib are mutually perpendicular. Optionally, the extension lengths of either one of the first and second anchor bars on both sides of the other are equal to each other. Optionally, an anti-corrosion coating is sprayed on the outer surface of the steel