Unidirectional lead core rubber vibration insulation support

Abstract

The invention discloses a unidirectional lead core rubber vibration insulation support which comprises an interlayer steel plate, interlayer rubber, outer wrapping rubber, upper seal plate, a cover plate, a lead core, a Teflon sliding plate, a stainless steel plate, an upper support plate, a lower support plate, limiting plates, an upper connecting plate, a lower connecting plate, an anchor bolt, a lateral stainless steel bar and a guide sliding strip. The led core is tightly pressed into a support reserved hole, and the cover plate is arranged on the lead core. The Teflon sliding plate and the stainless steel plate form a support sliding face, and lubrication between the stainless steel plate and the Teflon sliding plate is conducted through silicone grease. The upper seal plate is bonded with the Teflon sliding plate which is provided with the surface coated with epoxy resin and is subjected to surface activation treatment. The limiting plates are arranged on all the side edges of the upper support plate and allow longitudinal sliding but limit transverse moving. By means of the unidirectional lead core rubber vibration insulation support, the problem that a total link bridge length is large or large longitudinal deformation generated under the conventional load action may be restrained when the vibration insulation support is adopted for a large stride bridge is solved, the application range of the vibration insulation support is broadened, and vibration resistance of the overall bridge is improved.

Description

technical field [0001] The invention relates to the field of anti-shock and anti-seismic technology of bridges, and belongs to a special shock-absorbing and isolating device in bridge engineering, which is especially suitable for being installed between the upper structure of a bridge and the abutment, and can reduce the damage caused by vibration loads such as earthquakes to the structure. Protect the bridge. Background technique [0002] Earthquake is a natural disaster, a strong earthquake will bring huge disasters to human beings, including casualties and economic losses. Historically, my country's earthquake disaster ranks first in the world, which is characterized by high frequency, large magnitude and wide distribution. In the 20th century, more than 600 earthquakes of magnitude 6 or above occurred in my country. More than one-third of my country's land and more than half of large and medium-sized cities are located in areas with an earthquake resistance intensity o...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a unidirectional lead rubber shock-absorbing bearing, which solves the problem that the use of shock-absorbing bearings in a bridge with a large total length or a long-span bridge will constrain the large longitudinal deformation under conventional loads, and expands the shock-absorbing and isolating bearing. The application range of the bearing can improve the overall seismic capacity of the bridge

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