CN-122014012-A - Reinforcing component for opening hole behind concrete beam compression area and reinforcing method thereof

Abstract

The invention discloses a reinforcing component for opening a hole after a concrete beam is pressed and a reinforcing method thereof, wherein the reinforcing component comprises a hollow tubular double-layer main body, the double-layer main body comprises an outer wall body and an inner wall body, an interlayer is formed between the outer wall body and the inner wall body, a plurality of strip-shaped notches are correspondingly formed on the outer wall body and the inner wall body so as to be divided into a plurality of blocks, a plurality of elastic expanders are arranged in the interlayer and positioned at the strip-shaped notches, when the elastic expanders are in a compressed state, the double-layer main body is in a contracted state for sealing the strip-shaped notches, and when the elastic expanders are in an expanded state for opening the strip-shaped notches. The invention has the characteristics of good reinforcing effect, convenient construction, wide applicability and low price.

Inventors

• SONG RENQIAN
• HU FAN
• CHEN JIAN

Assignees

• 杰地设计集团有限公司

Dates

Publication Date

20260512

Application Date

20260204

Claims (10)

1. 1. A reinforcing component for a concrete beam compression area back hole is characterized by comprising a hollow tubular double-layer main body (1), wherein the double-layer main body (1) comprises an outer wall body (11) and an inner wall body (12), an interlayer (13) is formed between the outer wall body (11) and the inner wall body (12), a plurality of strip-shaped notches (14) are correspondingly formed in the outer wall body (11) and the inner wall body (12), a plurality of elastic expanders (2) are arranged in the interlayer (13) and positioned at the strip-shaped notches (14), when the elastic expanders (2) are in a compressed state, the double-layer main body (1) is in a contracted state for closing the strip-shaped notches (14), and when the elastic expanders (2) are in an expanded state, the double-layer main body (1) is in an expanded state for opening the strip-shaped notches (14).
2. 2. The reinforcing component for punching a rear hole of a concrete beam compression area according to claim 1, wherein the elastic expander (2) comprises two spring bases (21) which are respectively positioned at two sides of the strip-shaped notch (14), two ends of the spring bases (21) are respectively fixedly connected with the outer wall body (11) and the inner wall body (12), high-strength springs (22) are respectively arranged on the two spring bases (21), a supporting rod (23) is arranged between the two high-strength springs (22), and the supporting rod (23) corresponds to the strip-shaped notch (14).
3. 3. A reinforcing assembly for a rear opening of a concrete beam compression zone according to claim 1, wherein the inner side of the inner wall body (12) is detachably connected with a fastening ring (3) for maintaining the elastic expander (2) in a compressed state.
4. 4. A reinforcing component for a rear opening of a concrete beam compression zone according to claim 3, wherein a plurality of mounting plates (31) are annularly distributed on the inner side of the inner wall body (12), and the fastening rings (3) are sleeved on all the mounting plates (31).
5. 5. The reinforcing component for opening a hole behind a concrete beam compression area according to claim 1, wherein the transparent film (4) is arranged on the outer wall body (11) and positioned at the strip-shaped gap (14), two sides of the transparent film (4) are respectively connected with the outer wall bodies (11) at two sides of the strip-shaped gap (14), when the double-layer main body (1) is in a contracted state, the transparent film (4) is in a folded state, and when the double-layer main body (1) is in an unfolded state, the transparent film (4) is in an unfolded state.
6. 6. The reinforcing component for the rear hole of the concrete beam compression zone according to claim 1, wherein the inner wall body (12) is provided with a buckle plate (5) at the position of the strip-shaped notch (14), the buckle plate (5) comprises a plate body (51), and the plate body (51) is provided with a plurality of buckles (52) which are connected with the supporting rods (23) in a matching mode.
7. 7. The reinforcing component for punching the rear of the concrete beam compression area according to claim 1 is characterized in that cover plates (6) are arranged on two end faces of the double-layer main body (1), each cover plate (6) comprises a ring cover (61), a ring buckle (62) is arranged on each ring cover (61), an inserting groove (64) for inserting and installing the ring buckle (62) is formed in an interlayer (13) opening of the two end faces of the double-layer main body (1), first one-way buckling teeth (63) are arranged on an outer annular face of each ring buckle (62), and second one-way buckling teeth which are correspondingly connected with the first one-way buckling teeth (63) are arranged on the inner wall of each inserting groove (64).
8. 8. A reinforcing component for a rear hole of a concrete beam compression zone according to claim 1, wherein a plurality of connecting rib plates (15) which are distributed along the radial direction and the axial direction of the double-layer main body (1) are further arranged in the interlayer (13), one side surface of each connecting rib plate (15) is connected with the outer wall body (11), and the other side surface of each connecting rib plate (15) is connected with the inner wall body (12).
9. 9. A reinforcing method of a reinforcing component for a post-compression hole of a concrete beam according to any one of claims 1 to 8, comprising the steps of: S1, a hole is formed in the position of the rear hole of the beam, and the diameter of the hole corresponds to the size of the double-layer main body (1) in an expanded state; s2, roughening the concrete surface of the hole wall, and uniformly smearing structural adhesive on the opened hole wall; S3, coating structural adhesive on an outer wall body (11) of the double-layer main body (1), plugging the structural adhesive into a hole, and dismantling the fastening ring (3) after fixing the structural adhesive to expand the elastic expander (2), wherein the outer wall body (11) is tightly attached to the wall of the hole, and meanwhile, the transparent film (4) is unfolded; s4, buckling a metal buckle plate (5) on the inner wall body (12) to enable the inner wall surface of the inner wall body (12) to form a complete cylinder wall; s5, gluing the back of the ring cover (61) of the cover plate (6), gluing the wall of the hole, and then respectively inserting the cover plate (6) into two ends of the double-layer main body (1).
10. 10. The method according to claim 9, wherein between the steps S3 and S4, further comprising: s41, observing whether glue leakage exists between the hole wall and the double-layer main body (1) through the transparent film (4); s42, if yes, injecting glue at the glue leakage position for glue repair.

Description

Reinforcing component for opening hole behind concrete beam compression area and reinforcing method thereof Technical Field The invention relates to a concrete beam reinforcement assembly, in particular to a reinforcement assembly for a hole formed in a concrete beam after a compression zone and a reinforcement method thereof. Background In the fitment project, in order to satisfy equipment pipeline wiring demand in the fitment engineering, guarantee original layer reason such as high, about equipment pipeline meet the roof beam and open the condition of penetrating the pipe behind the pressurized district, not only common in existing building fitment transformation project, also often meet in newly-built engineering's finish repair project. The position of the hole after a lot is in the girder support or midspan compression district, if do not consolidate can exist certain structural safety risk to lead to following problem: 1) The bending bearing capacity of the beam member is reduced, the concrete section of the compression zone can be directly weakened by the holes of the compression zone, local concrete stress is concentrated, concrete has crushing risk, and the bending bearing capacity of the beam is greatly reduced. 2) The shearing bearing capacity is reduced, the shearing section of the concrete is directly weakened by the holes, and the stirrups can be broken by the positions of the holes, so that the shearing bearing capacity is further reduced. 3) The earthquake resistance is reduced, the ductility and the energy consumption capacity of the beam section can be weakened by the hole, and the hole is easy to be a weak position under the earthquake action, so that cracks or early damage can occur. The current reinforcing methods for beam hole include carbon fiber reinforcing method, steel plate reinforcing method, and cross section increasing method. However, the above reinforcement method requires the request of the design institute for reinforcement design, which prolongs the construction and delivery period to a certain extent, has higher reinforcement cost, more troublesome construction, and has a certain professional threshold, and requires reinforcement operation by qualified professional reinforcement construction units. In addition, a steel sleeve pressure grouting method is adopted, but the reinforcing method is adopted, the steel sleeve and the concrete cannot be tightly attached to be stressed cooperatively, the slurry leakage condition is caused, and the construction quality is difficult to control. Disclosure of Invention The invention aims to provide a reinforcing component for opening a hole behind a concrete beam compression area and a reinforcing method thereof. The invention has the characteristics of good reinforcing effect, convenient construction, wide applicability and low price. The technical scheme is that the reinforcing component for opening a hole behind a concrete beam compression zone comprises a hollow tubular double-layer main body, wherein the double-layer main body comprises an outer wall body and an inner wall body, an interlayer is formed between the outer wall body and the inner wall body, a plurality of strip-shaped notches are correspondingly formed in the outer wall body and the inner wall body so as to be divided into a plurality of blocks, a plurality of elastic expanders are arranged in the interlayer and positioned at the strip-shaped notches, when the elastic expanders are in a compressed state, the double-layer main body is in a contracted state for closing the strip-shaped notches, when the elastic expanders are in an expanded state for opening the strip-shaped notches. In the aforementioned reinforcing component for punching behind the concrete beam compression zone, the elastic expander comprises two spring bases respectively located at two sides of the strip-shaped notch, two ends of the spring bases are fixedly connected with the outer wall body and the inner wall body respectively, high-strength springs are arranged on the two spring bases, a supporting rod is arranged between the two high-strength springs, and the supporting rod corresponds to the strip-shaped notch. In the aforementioned reinforcing component for a hole formed in a concrete beam after a compression zone, a fastening ring for maintaining the compression state of the elastic expander is detachably connected to the inner side of the inner wall body. In the reinforcement component for forming a hole behind a concrete beam compression area, a plurality of mounting plates are annularly distributed on the inner side of the inner wall body, and the fastening ring is sleeved and buckled on all the mounting plates. In the reinforcement component for forming a hole behind a concrete beam compression area, the transparent film is arranged on the outer wall body at the position of the strip-shaped notch, two sides of the transparent film are respectively connected with the outer wall bodies at