Rod type axial shock absorption and insulation device of prestressed laminated rubber steel plate

Abstract

The invention discloses a rod type axial shock absorption and insulation device of a prestressed laminated rubber steel plate. The device comprises lug plates, axial steel bars, two laminated rubber steel plates and a protective steel cylinder. Each laminated rubber steel plate is internally provided with the corresponding axial steel bar in a penetrating mode, one end of each axial steel bar is fixedly connected with the corresponding lug plate, and the position, between the corresponding lug plate and the outer end face of the corresponding laminated rubber steel plate, on each bar body is sleeved with one fixing bolt and an adjusting bolt. Each laminated rubber steel plate is formed by alternately bonding tubular steel plate layers with tubular rubber plate layers, and the rubber layers on the outermost layers of the two laminated rubber steel plates are connected as a whole through the protective steel cylinder. Each axial steel bar is a variable-diameter steel bar and capable of sliding axially and squeezing the laminated rubber steel plates so that the laminated rubber steel plates form a stressed whole. The axial shock absorption and insulation problem is solved, and the rod type axial shock absorption and insulation device provides shock absorption and insulation protection for a device which is about to be subjected to shock absorption and insulation, such as a collection cultural relic storage device, and is capable of replacing a traditional spring-damping guide rod system to serve as a novel axial shock insulation system element of a three-dimensional shock insulation bearing.

Description

technical field [0001] The invention relates to the field of shock absorbing and isolating equipment, in particular to a prestressed laminated rubber steel plate rod type axial shock absorbing and isolating device. Background technique [0002] China is located between two major seismic belts - the Eurasian seismic belt and the circum-Pacific seismic belt, and is one of the countries most severely affected by earthquakes in the world. The economic losses and casualties caused by the destruction of urban structures and equipment (such as cultural relic storage devices) will have a huge impact on national security and social stability. Earthquakes are caused by the fact that the crustal rocks are in a complex stress state. With the continuous change of the earth's crust, when the in-situ stress exceeds the ultimate strength of a certain rock layer, the rock layer will suddenly break and dislocate, causing vibrations and elastic The waves spread to the surface, causing objects...

AI Technical Summary

Problems solved by technology

However, the actual earthquake damage shows that the impact of axial (vertical) earthquakes on objects cannot be ignored, and in some cases, its effects will exceed those of horizontal earthquakes

Traditional seismic isolation pedestals are generally used for isolation in the horizontal direction, which makes traditional seismic isolation pedestals not meet the requirements of axial seismic isolation on the one hand, and on the other hand, in some cases, it will also amplify the axial seismic action effect

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