CN204608591U - There is the bridge of shock-damping structure - Google Patents

Abstract

A bridge with a shock-absorbing structure, comprising: a plurality of bottom beams arranged in sequence, a deformation joint is arranged between two adjacent bottom beams, and at least one pier for supporting the bottom beam is arranged under each bottom beam; An anti-seismic structure located between the bottom beam and the pier, the anti-seismic structure includes a wear-resistant layer laid on the top of the pier and in contact with the bottom beam, a plurality of bumps on the lower surface of the bottom beam integrated with the bottom beam, located on the top of the pier and used A shock-absorbing damping element is located between the bottom surface of the projection and the bottom of the groove in the groove for the projection to be embedded in. The utility model reduces the damage to the bridge caused by the horizontal impact force caused by the earthquake by arranging an anti-seismic structure and a shock-absorbing support assembly under the bottom beam. A deformation joint is set between two adjacent bottom girders, so as to reduce the damage to the bridge caused by external vibration and small deformation in the length direction.

Description

Bridges with shock-absorbing structures

technical field

The utility model relates to a bridge building, in particular to a bridge with a shock absorbing structure.

Background technique

In daily life, the bridge structure will be deformed under the action of factors such as live load, temperature change, external construction, concrete shrinkage and creep, earthquake, etc., especially under the influence of vibration waves. will keep accumulating. If an earthquake occurs, the impact will be greater, resulting in a large horizontal force and vertical force, causing displacement and deformation of the bridge superstructure. When the displacement exceeds the resting width of the bridge panel on the pier, the bridge slab Falling will take place. At this time, not only the bridge is damaged, but also major safety accidents will occur for pedestrians and vehicles on and under the bridge. Even if the bridge has not had a major accident, the damage from the external vibration source is obvious, so it is urgent to take measures to solve the problem.

Utility model content

Aiming at the deficiencies of the prior art, the utility model aims to provide a bridge with a shock-absorbing structure, which, through its own anti-seismic structure and shock-absorbing support components, sets deformation joints between two adjacent bottom beams to reduce the The bridge displacement caused by external vibration is too large, and in severe cases, the stress concentration of the bottom beam due to deformation will cause bridge damage.

In order to achieve the above object, the utility model adopts the following technical solutions:

Bridges with shock-absorbing structures, including:

A plurality of bottom beams arranged in sequence, deformation joints are provided between two adjacent bottom beams, and at least one pier for supporting the bottom beam is provided under each bottom beam;

An anti-seismic structure located between the bottom beam and the pier, the anti-seismic structure includes a wear-resistant layer laid on the top of the pier and in contact with the bottom beam, a plurality of bumps on the lower surface of the bottom beam integrated with the bottom beam, located on the top of the pier and used A shock-absorbing damping element is located between the bottom surface of the projection and the bottom of the groove in the groove for the projection to be embedded in.

Preferably, the bridge with a shock-absorbing structure also includes a shock-absorbing support assembly installed on the lower end of the bottom beam near the deformation joint, the bottom end of the shock-absorbing support assembly is fixedly connected to the foundation, and the top end of the shock-absorbing assembly is supported under the bottom beam surface.

Preferably, the shock absorbing and damping member is a spring or an elastic washer.

The beneficial effects of the utility model are:

Compared with the prior art, the bridge with shock-absorbing structure described in the utility model is provided with shock-absorbing and shock-absorbing support components at corresponding positions between the bottom beam and the pier, and between the bottom beam and the foundation, And a deformation joint is set between two adjacent bottom beams. Reduce the damage to the bridge caused by external vibration sources such as construction vibration, vibration caused by large-scale vehicle traffic, earthquakes, etc., from all directions, especially horizontal vibration or small deformation. The utility model is simple in structure, easy to implement, and has broad application prospects.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a partial view at A in Fig. 1 .

Reference signs: 10, foundation; 20, bottom beam; 201, bump; 202, wear-resistant layer; 21, deformation joint; 30, column pier; 301, groove; 302, shock-absorbing damping piece; 31, cushioning Support components.

Detailed ways

The utility model will be further described below in conjunction with embodiment and accompanying drawing:

As shown in FIG. 1 , the utility model is a bridge with a shock-absorbing structure, which includes a plurality of bottom beams 20 , columns and piers 30 , and an anti-seismic structure arranged in sequence. A deformation joint 21 is provided between adjacent two bottom beams 20, and the deformation joint 21 provides an avoidance space for the slight deformation of the two bottom beams 20, and the gap size of the deformation joint 21 between the two bottom beams 20 must be set according to the actual situation , that is, the size of the gap cannot be too large or too small. If it is too large, it will affect the passage of vehicles on the bridge. In addition, if the deformation joint 21 is too large, it will easily cause greater vibration when the vehicle passes over it; if it is too small, it will cause The ability of the bottom beams 20 to contain small deformations becomes poor, resulting in contact between two adjacent bottom beams 20 and thus generating compressive stress. A column pier 30 for supporting the corresponding bottom beam 20 is disposed under each bottom beam 20 , and there is at least one column pier 30 below each bottom beam 20 . As shown in Figure 2, the anti-seismic structure is located between the bottom beam 20 and the pier 30. The anti-seismic structure includes a wear-resistant layer 202, a bump 201, a groove 301, and a shock-absorbing damper 302. The wear-resistant layer 202 is laid on the pier 30. The top is in contact with the lower surface of the bottom beam 20, the bump 201 is located on the lower surface of the bottom beam 20, and the bump 201 is integrated with the bottom beam 20, the groove 301 is located at the top of the pier 30, and the groove 301 is used for The bumps 201 are correspondingly embedded therein. The shock-absorbing and damping element 302 is disposed between the bottom of the protrusion 201 and the bottom of the groove 301 . Such implementation can reduce the problem of stress concentration caused by excessive displacement and deformation of the bridge caused by external vibration.

In order to better enhance the shock absorption and anti-seismic effects of the aforementioned scheme, the bridge with a shock absorption structure described in the present invention also includes a shock absorber assembly, and the shock absorber support assembly 31 is installed on the lower surface of the bottom beam 20 near the end of the deformation joint 21 , its bottom end is fixedly connected to the foundation 10, and its top end is supported on the lower surface of the bottom beam 20.

In order to enhance the shock absorbing effect of the shock-resistant structure, preferably, the shock-absorbing and damping member 302 is a spring or an elastic washer.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (3)

1. A bridge with a shock-absorbing structure, characterized in that it comprises: A plurality of bottom beams arranged in sequence, deformation joints are provided between two adjacent bottom beams, and at least one pier for supporting the bottom beam is provided under each bottom beam; An anti-seismic structure located between the bottom beam and the pier, the anti-seismic structure includes a wear-resistant layer laid on the top of the pier and in contact with the bottom beam, a plurality of bumps on the lower surface of the bottom beam integrated with the bottom beam, located on the top of the pier and used A shock-absorbing damping element is located between the bottom surface of the projection and the bottom of the groove in the groove for the projection to be embedded in. 2. The bridge with shock-absorbing structure as claimed in claim 1, characterized in that: the bridge with shock-absorbing structure also includes a shock-absorbing support assembly installed on the lower end surface of the bottom beam near one end of the deformation joint, and the shock-absorbing support assembly The bottom end is fixedly connected with the foundation, and the top end of the cushioning support assembly is supported on the lower surface of the bottom beam. 3. The bridge with a shock-absorbing structure according to claim 1 or 2, characterized in that: the shock-absorbing damping member is a spring or an elastic washer.