Damping bearing for highway bridge

Abstract

The invention relates to a highway bridge damping support which comprises an upper steel plate, a lower steel plate and a rubber sealing layer arranged between the upper steel plate and the lower steel plate in a sleeving mode. Rubber layers and steel plate layers are arranged in the rubber sealing layer in parallel and at intervals. The rubber sealing layer is of a cylinder structure. At least one circle of groove is formed in the upper surface of each rubber layer. The grooves are filled with energy dissipation liquid. First limiting rods are arranged between the rubber sealing layer and a rotating ball. Each first limiting rod is sleeved with a damping component. One end of each damping component is fixed to the bottom face of the rubber sealing layer, and the other end of each damping component is fixedly connected with the upper surface of the rotating ball. The rotating ball is in contact connection with the lower steel plate. Through the arrangement of the energy dissipation liquid, the earthquake response of a structure can be relieved, and the anti-seismic capacity of the structure is improved. Through the arrangement of the rotating ball and the damping components, kinetic energy generated by earthquakes can be converted into potential energy, and the damping function in the horizontal direction and the vertical direction is achieved.

Description

technical field [0001] The invention relates to a highway bridge shock-absorbing bearing, which belongs to the technical field of highway bridge bearings. Background technique [0002] my country is one of the earthquake-prone countries in the world. Judging from the large earthquakes that occurred in the mainland of my country, it has the characteristics of high intensity, high frequency and shallow focus. As an important part of the lifeline system engineering, highway bridges will cut off the lifeline of the earthquake zone once they are damaged or interrupted. The secondary disasters will be very serious, and the economic loss will undoubtedly be greatly increased. [0003] From the perspective of seismic structure, they are all regions with violent fault activities. Due to the limitation of terrain conditions, highway bridges inevitably have to pass through special stratum zones. Geological disasters are prone to occur in these special terrain areas, which are charact...

AI Technical Summary

Problems solved by technology

There are very few studies on vertical isolation, and the vertical action of earthquakes is often considered in the design. Many earthquake damage phenomena show that in high-intensity earthquake areas, especially near the epicenter, the main damage to buildings is The force comes from the vertical acceleration, and the influence of the horizontal direction is small, so it is necessary to provide a road bridge shock absorber bearing with simple structure, strong and durable, high working and operating efficiency, long service life, and including vertical shock absorption and meaningful

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