Three-directional shock-isolating device with torsion-resistant and pulling-resistant functions

Abstract

The invention relates to a three-directional shock-isolating device with torsion-resistant and pulling-resistant functions. The shock-isolating device comprises a bottom plate, bottom horizontal shock-isolating units, intermediate vertical shock-isolating units and a top plate; a horizontal spring unit is arranged on each bottom horizontal shock-isolating unit; an oblique spring unit is arranged on each intermediate vertical shock-isolating unit; the bottom plate is connected with the bottom horizontal shock-isolating units through the corresponding horizontal spring units; the intermediate vertical shock-isolating units are connected with the corresponding bottom horizontal shock-isolating units through second spherical hinges of the corresponding oblique spring units and connected with the top plate through first spherical hinges of the corresponding oblique spring units; and thus, the shock-isolating device is formed, horizontal shock isolation and vertical shock isolation can be separately achieved at the same time, the vertical stability problem caused by horizontal displacement and the stability problem caused by torsion can be solved, the natural vibration periods of protected structures, equipment and cultural relics in the collection of cultural institutions are changed to the maximum, and the purposes of reducing earthquake action and protecting the structures, the equipment and the cultural relics in the collection of the cultural institutions are achieved.

Description

technical field [0001] The invention relates to a shock-absorbing and isolating structure, equipment and cultural relics, in particular to a three-way shock-isolating device with functions of anti-torsion and pull-out. 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. Historically, strong earthquakes of magnitude 6 or above have occurred many times in the Yangtze River Delta and the Pearl River Delta. In the Beijing-Tianjin-Bohai Rim region, in the past 300 years, an average of 7 magnitude or more earthquakes have occurred every 44 years. With the acceleration of urbanization, a large amount of national wealth is rapidly concentrated in cities and urban agglomerations. And more than one-third of my country's built or planned urban agglomerations are located in areas where major earthquakes of magnitude ...

AI Technical Summary

Problems solved by technology

At present, these two seismic isolation technologies have achieved good applications, but the above two technologies are aimed at reducing the horizontal seismic action, so these two technologies are only suitable for those structures that are not sensitive to vertical or It is a structure that does not require vertical seismic isolation, so the above-mentioned technology can only meet the needs of horizontal seismic isolation, and there are still relatively large defects and hidden dangers

However, investigations and analyzes after previous earthquakes have found that the impact and harm of vertical earthquakes on structures cannot be ignored. Therefore, it does not meet the requirements of vertical seismic isolation. Even under certain conditions, this seismic isolation technology can also amplify vertical earthquakes, which poses a huge threat to the seismic safety of structures.

However, the existing three-directional seismic isolation bearings are mainly a simple combination of horizontal isolation and vertical isolation, and its combination performance is difficult to meet the stability problem.

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