A Composite Isolation Bearing Based on Displacement Control

Abstract

The invention discloses a composite earthquake isolating support seat based on displacement control, and belongs to the technical field of civil engineering. The composite earthquake isolating support seat comprises a lower bearing platform, middle separation plates and an upper bearing plate, wherein the lower bearing platform is fixed on a building foundation; the top of the lower bearing platform is provided with a rail; slide blocks are arranged in the rail; the two ends of the slide blocks are provided with springs; the middle separation plates are arranged between the lower bearing platform and the upper bearing plate; the slide blocks and the middle separation plates are connected through first shafts; the middle separation plates are sheathed on the lower parts of second shafts through center holes; the upper parts of the second shafts are arranged in through holes of the upper bearing plate; the second shafts are damping shafts; and the upper bearing plate is fixedly connected with an upper building. The composite earthquake isolating support seat has the advantages that buildings and bridges can achieve an earthquake isolating effect under the simultaneous effects of the springs and the damping shafts; the reset effect after an earthquake is better; a bellmouth-shaped space is added, so that an acting space is provided for the second shafts; and a huge and ponderous position limiting device is not used, and in addition, the manufacturing cost is low.

Description

Technical field: [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a composite shock-isolation bearing based on displacement control. Background technique: [0002] Earthquakes release huge amounts of energy through seismic waves, causing massive damage to objects on the ground. The first is to cause the collapse of the building, which then leads to casualties and property losses. With the rapid development of residential construction, the buildings are taller and denser, and the people are more concentrated. When a strong earthquake occurs, the damage caused by it will also increase. more serious. Therefore, the seismic research of buildings is particularly important. However, the traditional seismic structure cannot infinitely improve the seismic capacity of the building by increasing the structural strength. The emergence of the seismic isolation structure system has changed the energy consumption principle of the trad...

AI Technical Summary

Problems solved by technology

At the same time, it is often difficult to realize the automatic reset of the structure after the earthquake without using other equipment in the sliding seismic isolation bearing, and some bearings have higher requirements on the properties of the friction surface material.

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