CN207597235U - A kind of cable-stayed type bridge earthquake resistance component - Google Patents

Abstract

The utility model discloses an anti-seismic component of a cable-stayed bridge, which comprises a main girder and a bridge pier, wherein diagonal stay rods are arranged on both sides of the bridge pier, and the two ends of the diagonal stay rod are respectively connected to the bridge pier through connecting supports. The side of the side and the bottom of the main beam are hinged; a connection hole is provided on the connection support, and perforations are provided at both ends of the diagonal stay rod, and the connection hole and the perforation are connected by connecting steel rods; the connection support It includes a connecting seat and a connecting surface, the connecting surface is vertically arranged on the connecting seat, the connecting hole is located on the connecting surface, when there is an earthquake, the horizontal seismic force is converted into a vertical The force in the direction is offset by the gravity of the bridge deck itself, thus ensuring the safety of the bridge during earthquakes.

Description

A cable-stayed bridge anti-seismic component

technical field

The utility model relates to a bridge anti-seismic component, in particular to a cable-stayed bridge anti-seismic component.

Background technique

At present, most of the anti-seismic systems of bridges still adopt the anti-seismic block structure, that is, under the action of earthquake, the plastic deformation of the bridge, the energy dissipation part is mainly located at the pier. Generally, when the pier column is high, the horizontal seismic capacity of the longitudinal stop of the fixed support does not meet the requirements under the action of the E2 earthquake force, and the horizontal displacement and seismic force of the corresponding bridge pier at the fixed support are also relatively large. Calculation is difficult to meet the requirements.

Utility model content

The technical task of the utility model is to provide a cable-stayed bridge anti-seismic component for the above deficiencies in the prior art.

The technical solution adopted by the utility model to solve the technical problem is: a cable-stayed bridge anti-seismic component, including a main girder and a bridge pier, wherein diagonal stay rods are arranged on both sides of the bridge pier, and the two ends of the diagonal stay rod The connecting support is respectively hinged with the side of the bridge pier and the bottom of the main girder.

Further improvement: a connection hole is provided on the connection support, and through holes are provided at both ends of the diagonal stay rod, and the connection hole and the through hole are connected by connecting steel rods.

Further improvement: the connection support includes a connection seat and a connection surface, the connection surface is vertically arranged on the connection seat, and the connection hole is located on the connection surface.

Further improvement: the connecting hole is a bar-shaped hole, and a rubber sleeve is provided outside the connecting steel rod.

The utility model has the advantages that when there is an earthquake, the horizontal seismic force is converted into a vertical force through the action of the diagonal stay rods, and the gravity of the bridge deck itself is used to offset it, thus ensuring the safety of the bridge during the earthquake.

Description of drawings

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

Fig. 2 is a force analysis diagram when the bridge deck of the present invention is affected by an earthquake.

Fig. 3 is a structural schematic diagram of the connection support of the utility model.

Fig. 4 is a connection schematic diagram of the connection support of the diagonal stay rod of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail below.

As shown in the figure, a cable-stayed anti-seismic bridge includes a bridge deck 1 and a bridge pier 2, wherein diagonal stay rods 4 are arranged on both sides of the bridge pier 2, and the two ends of the diagonal stay rods 4 are connected by a support 3 , respectively hinged with the side of the pier 2 and the bottom of the bridge deck 1; the connection support 3 is provided with a connection hole 30, and the two ends of the diagonal stay rod 4 are provided with a perforation 40, and the connection hole 30 Connect with the through hole 400 through the connecting rod 5; the connecting support includes a connecting seat 32 and a connecting surface 31, the connecting surface 31 is vertically arranged on the connecting seat 32, and the connecting hole 30 is located on the connecting surface 31; the connecting hole 30 is a bar-shaped hole, and a rubber sleeve is provided outside the connecting rod 5 .

Its working principle is: as shown in Figure 2, when the earthquake causes the bridge deck 1 to move horizontally, if the bridge deck 1 moves to the right, the diagonal stay rod 4 on the right side of the bridge deck 1 will be subjected to a rightward force, And the diagonal stay rod 4 on the left side of the bridge deck 1, because its bottom is hinged with the connecting support 3 on the left side, so the diagonal stay rod 4 on the left side will start to turn rightward with the bottom of the diagonal stay rod 4 as the center of circle. , if the left diagonal stay 4 wants to turn rightward, then the top of the left diagonal stay 4 must move upwards. At this time, due to the bridge deck 1 pressing on the top of the diagonal stay 4, the left diagonal stay 4 can't move upwards and rotate, thereby realized the stability to bridge deck 1, if the moving direction of bridge deck 1 is to the left, its principle is the same with the time to the right.

The above descriptions are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (2)

1. a kind of cable-stayed type bridge earthquake resistance component, including girder and bridge pier, it is characterised in that：It is equipped in the both sides of the bridge pier Brace, the both ends of the brace are hinged by bottom of the connects bearing respectively with the side of the bridge pier and girder, in institute Connects bearing is stated equipped with connecting hole, is equipped with perforation at the both ends of the brace, the connecting hole connect steel with being punched through Stick connects, and the connects bearing includes connecting seat and joint face, and the joint face is vertically set on the connecting seat, the company Hole is connect to be located on the joint face.

2. a kind of cable-stayed type bridge earthquake resistance component according to claim 1, it is characterised in that：The connecting hole is bar shaped Hole, in the pitman peripheral hardware rubber sleeve.