CN215441404U

CN215441404U - Novel anticorrosive, noise-reducing, vibration-damping and shock-resistant steel reinforced concrete diaphragm beam

Info

Publication number: CN215441404U
Application number: CN202121382606.8U
Authority: CN
Inventors: 陈奉民; 钟芸; 郑升宝; 应立; 李林; 彭虹霖
Original assignee: China Railway Changjiang Transportation Design Group Co ltd
Current assignee: China Railway Changjiang Transportation Design Group Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-01-07
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a novel anti-corrosion, noise-reduction, vibration-reduction and anti-seismic steel reinforced concrete diaphragm beam, which structurally comprises a steel cross beam, shear nails and a concrete block, wherein the steel cross beam comprises an upper flange, a lower flange and a web plate, the steel cross beam is wrapped in the concrete block, and the steel cross beam and the concrete block are combined into a whole through the shear nails to form a steel reinforced concrete structure; meanwhile, the balance weight at the fulcrum of the steel beam is increased, the rigidity of the bridge is improved, the noise reduction and vibration reduction effects on the travelling crane impact at the expansion joint of the bridge are obvious, and the anti-seismic performance of the full bridge is greatly improved.

Description

Novel anticorrosive, noise-reducing, vibration-damping and shock-resistant steel reinforced concrete diaphragm beam

Technical Field

The utility model relates to the technical field of bridge design, in particular to a novel anti-corrosion, noise-reduction, vibration-reduction and anti-seismic steel reinforced concrete diaphragm beam.

Background

The steel-concrete combined beam bridge is a structural form which is different from the traditional beam bridge and is developed by combining the respective advantages of two materials on the basis of a steel beam and a reinforced concrete beam, can realize standardized design, industrial manufacture and assembly construction to the maximum extent, reduces field operation, and is widely applied to the field of bridge engineering in recent years; in order to ensure the transverse rigidity of the steel main beam, a diaphragm beam is usually arranged at the beam end, and the diaphragm beams currently applied to the composite beam all adopt a steel structure and have light dead weight.

Based on the inventor, the existing novel corrosion-resistant, noise-reducing, vibration-damping and shock-resistant steel reinforced concrete diaphragm beam mainly has the following defects, for example: along with the increase of large-scale and heavy-duty vehicles, the driving impact at the expansion joint of the beam end is continuously increased, so that the beam end generates larger noise and vibration, and in addition, because the beam end is in an open-air working environment for a long time, the corrosion phenomenon of the steel beam also frequently appears, conditions are further created for the germination and development of diseases, the whole rigidity and the dynamic performance of the bridge structure generate larger changes in the past, and the safety and the normal use of the bridge are seriously influenced.

Disclosure of Invention

Aiming at the problems, the utility model provides a novel steel reinforced concrete diaphragm beam which is corrosion-resistant, noise-reducing, vibration-damping and shock-resistant.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a novel anticorrosive, fall, damping and shock-resistant reinforcing bar concrete diaphragm beam, its structure includes concrete piece, shear force nail, steel beam, the concrete piece profile is 7 font structural forms, the shear force nail becomes steel beam and concrete piece combination whole body and forms reinforcing bar concrete structure, the steel beam parcel is in the concrete piece, the steel beam includes the top flange, the bottom flange, web, the top flange is located steel beam's inside upper end, the bottom flange sets up the inside lower extreme at steel beam, the web is established at steel beam's inside centre.

Further, the concrete block is including choosing the arm section, buckling reinforcing bar, stirrup, structure reinforcing bar, choose the arm section to set up at concrete block top, the reinforcing bar of buckling is located chooses inside the arm section, and buckles and follow horizontal bridge to interval arrangement more than the reinforcing bar is equipped with eight, the stirrup is equipped with more than eight, and every stirrup is equipped with more than eight, and is connected with the reinforcing bar of buckling, the structure reinforcing bar is equipped with more than eight, and every structure reinforcing bar is arranged to horizontal bridge along the horizontal bridge.

Furthermore, the horizontal section at the top of the stirrup is respectively overlapped with each bent reinforcing steel bar, and the structural reinforcing steel bar is connected with the bent reinforcing steel bar and is positioned inside the concrete block.

Further, the construction steel bars are arranged at intervals along the outer contour of the concrete block.

Further, the construction steel bars are bound with the bent steel bars and the stirrups to form a steel bar mesh.

Advantageous effects

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model solves the problem of water leakage and corrosion of the beam end of the steel beam by wrapping the concrete.

2. The utility model increases the balance weight at the fulcrum of the steel beam, improves the rigidity of the bridge, and has obvious noise reduction and vibration reduction effects on the driving impact at the expansion joint of the bridge.

3. The fulcrum beam counterweight of the utility model greatly improves the anti-seismic performance of the full bridge.

4. The steel reinforced concrete diaphragm beam can complete pouring construction by erecting a mould on the existing pier, a high pier support does not need to be additionally erected, construction is convenient, and safety is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a novel anti-corrosion, noise-reducing, vibration-damping and anti-seismic steel reinforced concrete diaphragm beam according to the present invention.

FIG. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic side view of the bent reinforcing bar according to the present invention.

Fig. 4 is a schematic top view of the stirrup of the present invention.

Fig. 5 is a schematic top view of the structural reinforcing bar of the present invention.

Fig. 6 is a side view of the structural reinforcing bar of the present invention.

In the figure: concrete block 1, shear nail 2, steel beam 3, upper flange 31, lower flange 32, web 33, cantilever section 11, bending steel bar 12, stirrup 13 and constructional steel bar 14.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Example (b): referring to fig. 1-6, the embodiments of the present invention are as follows:

its structure includes concrete block 1, shear force nail 2, steel beam 3, 1 profile of concrete block is 7 font structural shapes, shear force nail 2 becomes whole steel bar concrete structure with steel beam 3 and concrete block 1 combination, steel beam 3 wraps up in concrete block 1, web 33 thickness direction both sides symmetry in concrete block 1 high region sets up the multirow shear force nail 2, each row shear force nail 2 is followed web 33 length direction parallel arrangement, steel beam 3 includes top flange 31, bottom flange 32, web 33, top flange 31 is located steel beam 3's inside upper end, bottom flange 32 sets up the inside lower extreme at steel beam 3, web 33 is established at steel beam 3's inside centre.

Concrete block 1 is including choosing arm section 11, buckling reinforcing bar 12, stirrup 13, structure reinforcing bar 14, choose arm section 11 to set up at concrete block 1 top, buckling reinforcing bar 12 and being located and choosing inside arm section 11, and buckling reinforcing bar 12 and be equipped with more than eight along the cross bridge to interval arrangement, stirrup 13 is equipped with more than eight, and 13 top horizontal segments of every stirrup overlap with every buckling reinforcing bar 12 respectively and arrange, structure reinforcing bar 14 is equipped with more than eight, and every structure reinforcing bar 14 is arranged along the cross bridge.

The horizontal section of the top of the stirrup 13 is respectively overlapped with each bent steel bar 12, and the constructional steel bar 14 is connected with the bent steel bar 12 and is positioned inside the concrete block 1.

The construction bars 14 are spaced along the outer contour of the concrete block 1.

The construction bars 14 are tied with the bent bars 12 and the stirrups 13 to form a mesh reinforcement.

The construction steel bars 14 are arranged at intervals along the outer contour of the concrete block 1 and are bound with the bent steel bars 12 and the stirrups 13 to form a steel bar mesh, so that the concrete can be prevented from cracking.

The shear nails 2 are symmetrically arranged in rows in the height area of the concrete block 1 at two sides in the thickness direction of the shear nails 2, the shear nails 2 in each row are arranged in parallel along the length direction of the shear nails 2, so that the large relative sliding of the steel and the concrete on the contact surface is limited, and the cooperative work of the steel and the concrete is ensured.

Based on the above embodiment, the specific working principle is as follows: the manufacturing of the steel beam 3 and the steel girder is completed in a factory, each row of shear nails 2 are welded at the corresponding position of the web plate 33, the steel beam is integrally installed in place after the welding operation is completed, a formwork is erected on a pier, the bent steel bars 12, the stirrups 13 and the constructional steel bars 14 outside the steel beam 3 are bound, and then the externally-coated concrete block 1 is poured, so that the steel beam 3 and the concrete block 1 are combined into a whole through the shear nails 2 to form the steel reinforced concrete structure.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel anticorrosive, fall and make an uproar, damping and shock-resistant reinforcing bar concrete diaphragm beam, its structure includes concrete block (1), shear force nail (2), steel crossbeam (3), concrete block (1) profile is 7 font structural forms, shear force nail (2) combine into whole reinforcing bar concrete structure with steel crossbeam (3) and concrete block (1), steel crossbeam (3) parcel is in concrete block (1), its characterized in that:

steel crossbeam (3) include top flange (31), bottom flange (32), web (33), top flange (31) are located the inside upper end of steel crossbeam (3), bottom flange (32) set up the inside lower extreme at steel crossbeam (3), the inside centre at steel crossbeam (3) is established in web (33).

2. The novel corrosion-resistant, noise-reducing, vibration-damping and earthquake-resistant steel reinforced concrete diaphragm beam as claimed in claim 1, which is characterized in that: concrete block (1) is including choosing arm section (11), buckling reinforcing bar (12), stirrup (13), constructional steel bar (14), choose arm section (11) to set up at concrete block (1) top, buckling reinforcing bar (12) and being located and choosing inside arm section (11), and buckling reinforcing bar (12) and be equipped with more than eight along the cross bridge to interval arrangement, stirrup (13) are equipped with more than eight, and are connected with buckling reinforcing bar (12), constructional steel bar (14) are equipped with more than eight, and every constructional steel bar (14) is to arranging along the cross bridge.

3. The novel corrosion-resistant, noise-reducing, vibration-damping and earthquake-resistant steel reinforced concrete diaphragm beam as claimed in claim 2, wherein: the horizontal section of the top of the stirrup (13) is respectively overlapped with each bent steel bar (12), and the structural steel bar (14) is connected with the bent steel bar (12) and is positioned inside the concrete block (1).

4. The novel corrosion-resistant, noise-reducing, vibration-damping and earthquake-resistant steel reinforced concrete diaphragm beam as claimed in claim 3, wherein: the construction steel bars (14) are arranged at intervals along the outer contour of the concrete block (1).

5. The novel corrosion-resistant, noise-reducing, vibration-damping and earthquake-resistant steel reinforced concrete diaphragm beam as claimed in claim 2, wherein: the construction steel bars (14) are bound with the bent steel bars (12) and the stirrups (13) to form a steel bar mesh.