Reinforcing structure of main beam of concrete beam bridge

Abstract

The utility model discloses a reinforcing structure of a main beam of a concrete beam bridge, which comprises a bridge body, a bearing layer arranged above the bridge body, a shear stress resistant layer arranged above the bearing layer, a sound insulation layer arranged above the shear stress resistant layer, a composite reinforcing layer arranged above the sound insulation layer, and a surface layer arranged above the composite reinforcing layer. According to the reinforcing structure of the concrete beam bridge girder, the shear stress resistance layer is arranged on the bridge body bearing layer and formed by mixing and pouring asphalt, concrete and the like for the channel steel layer according to a certain proportion, the shear stress resistance of a bridge body is effectively improved, the sound insulation layer is arranged to be the foaming cement layer, and a plurality of closed air holes are formed in the foaming cement layer; in addition, the composite reinforcing layer increases the stability of the bridge body through the longitudinal reinforcing ribs, the reinforcing mesh and the transverse reinforcing ribs, and the bearing capacity and the stability of the girder bridge main beam are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge reinforcement related products, in particular to a reinforcement structure of a main beam of a concrete beam bridge. Background Art

[0002] As the service life of various engineering structures increases, or due to the continuous increase in traffic loads, or due to environmental erosion, or due to the impact of various disasters, or due to changes in structural functions and design and construction errors (or poor) and other reasons, the structural performance can no longer meet the functional requirements. It is necessary to carry out necessary structural reinforcement to restore its function and obtain a bearing capacity equal to or greater than the original one. The reinforcement of engineering structures needs to arise from this. When the main beam of a concrete beam bridge has insufficient bearing capacity, it must be reinforced.

[0003] However, the existing reinforcement structures are simple in structure and mostly use steel formwork, which has defects such as high labor consumption and long cost recovery period. Utility Model Content

[0004] The purpose of the utility model is to provide a reinforcement structure for a main beam of a concrete beam bridge to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement structure for a main beam of a concrete beam bridge, comprising a bridge body, a bearing layer is provided above the bridge body, a shear stress resistant layer is provided above the bearing layer, a sound insulation layer is provided above the shear stress resistant layer, a composite reinforcement layer is provided above the sound insulation layer, and a surface layer is provided above the composite reinforcement layer.

[0006] Preferably, the composite reinforcement layer includes longitudinal reinforcement ribs, steel mesh and transverse reinforcement ribs.

[0007] Preferably, the shear stress resistant layer is a channel steel layer.

[0008] Preferably, the sound insulation layer is a foamed cement layer having a plurality of closed pores inside.

[0009] Preferably, the transverse reinforcement ribs and the longitudinal reinforcement ribs are arranged above and below the steel mesh respectively, and the longitudinal reinforcement ribs are arranged on the inner side of the transverse reinforcement ribs.

[0010] Preferably, a plurality of groups of bridge piers are fixedly connected to the bottom of the bridge body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The reinforcement structure of the main beam of the concrete beam bridge is a shear stress resistant layer arranged on the bearing layer of the bridge body, which is made of a channel steel layer and is cast by mixing asphalt, concrete, etc. in a certain proportion, which effectively improves the shear stress resistance of the bridge body. The sound insulation layer is arranged as a foamed cement layer, and the foamed cement layer has a plurality of closed pores inside, which effectively reduces the noise during use. The composite reinforcement layer is composed of longitudinal reinforcement ribs, steel mesh and transverse reinforcement ribs to increase the stability of the bridge body. The utility model effectively improves the bearing capacity and stability of the main beam of the beam bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a reinforcement structure of a concrete beam bridge main beam of the utility model;

[0014] Figure 2 The utility model is a schematic diagram of a composite reinforcement layer structure of a reinforcement structure of a concrete beam bridge main beam.

[0015] In the figure: 1. Bridge body; 2. Bearing layer; 3. Shear stress resistant layer; 4. Sound insulation layer; 5. Composite reinforcement layer; 6. Surface layer; 7. Longitudinal reinforcement ribs; 8. Steel mesh; 9. Transverse reinforcement ribs; 10. Bridge piers. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] See also Figure 1-2 The utility model provides an embodiment: a reinforcement structure of a main beam of a concrete beam bridge, comprising a bridge body 1, a bearing layer 2 is provided above the bridge body 1, a shear stress resistance layer 3 is provided above the bearing layer 2, a sound insulation layer 4 is provided above the shear stress resistance layer 3, a composite reinforcement layer 5 is provided above the sound insulation layer 4, a surface layer 6 is provided above the composite reinforcement layer 5, the composite reinforcement layer 5 comprises longitudinal reinforcement ribs 7, a steel mesh 8 and transverse reinforcement ribs 9; the shear stress resistance layer 3 is a channel steel layer; the sound insulation layer 4 is a foamed cement layer, and the foamed cement layer has a plurality of closed pores inside; the transverse reinforcement ribs 9 and the longitudinal reinforcement ribs 7 are respectively arranged above and below the steel mesh 8, and the longitudinal reinforcement ribs 7 are arranged on the inner side of the transverse reinforcement ribs 9; a plurality of groups of bridge piers 10 are fixedly connected to the bottom of the bridge body 1.

[0018] Working principle: First, a shear stress resistance layer 3 is arranged on the bearing layer 2 of the bridge body 1. The layer is made of a channel steel layer, asphalt, concrete, etc. mixed and cast in a certain proportion, which effectively improves the shear stress resistance of the bridge body 1. The sound insulation layer 4 is arranged as a foamed cement layer. The foamed cement layer has a number of closed pores inside, which effectively reduces noise during use. The composite reinforcement layer 5 consists of longitudinal reinforcement ribs 7, steel mesh 8 and transverse reinforcement ribs 9 to increase the stability of the bridge body 1.

[0019] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reinforcement structure for a main beam of a concrete beam bridge, comprising a bridge body (1), characterized in that: A bearing layer (2) is provided above the bridge body (1), a shear stress resistant layer (3) is provided above the bearing layer (2), a sound insulation layer (4) is provided above the shear stress resistant layer (3), a composite reinforcement layer (5) is provided above the sound insulation layer (4), and a surface layer (6) is provided above the composite reinforcement layer (5).

2. The reinforcement structure of a concrete beam bridge main beam according to claim 1, characterized in that: The composite reinforcement layer (5) comprises longitudinal reinforcement ribs (7), a steel mesh (8) and transverse reinforcement ribs (9).

3. The reinforcement structure of a concrete beam bridge main beam according to claim 1, characterized in that: The shear stress resistant layer (3) is a channel steel layer.

4. The reinforcement structure of a concrete beam bridge main beam according to claim 1, characterized in that: The sound insulation layer (4) is a foamed cement layer having a plurality of closed pores inside.

5. The reinforcement structure of a concrete beam bridge main beam according to claim 2, characterized in that: The transverse reinforcing ribs (9) and the longitudinal reinforcing ribs (7) are arranged above and below the steel mesh (8) respectively, and the longitudinal reinforcing ribs (7) are arranged on the inner side of the transverse reinforcing ribs (9).

6. The reinforcement structure of a concrete beam bridge main beam according to claim 1, characterized in that: The bottom of the bridge body (1) is fixedly connected with a plurality of groups of bridge piers (10).

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