Design method applied to self-resetting damping support

Abstract

The invention discloses a design method applied to a self-resetting damping support. The method is characterized in that an upper seat plate and a lower seat plate of the support are connected throughan inhaul cable; the inhaul cable is provided with a waveform section with a certain length; a plurality of reset devices are arranged at a wave crest and a wave trough and are connected in parallelin a matched mode, the inhaul cable drives the reset devices to deform in a radial direction of the inhaul cable in a waveform gradual straightening process, and the inhaul cable is pulled to providea reset force for the support; and a plurality of reset devices are arranged on a spring in the radial direction of the inhaul cable so that the inhaul cable adapts to a large displacement of the support through geometric deformation set by a waveform section, the deformation is decomposed to the reset devices, and the reset devices adapt to the large displacement of the whole support with small deformation. A three-way resetting force of the support can be effectively provided and the displacement of the support can be limited while a large-displacement adaptive capacity of the damping support is ensured so that the damping support has good self-resetting, energy-consuming, buffering and limiting performance.

Description

technical field [0001] The invention belongs to the fields of civil engineering and earthquake resistance. Background technique [0002] In engineering technology, bearings are very important supporting components, especially in bridge engineering, bearings are widely used between upper and lower structures. In high-intensity earthquake areas, the use of bearings for seismic isolation design is an important means to ensure the seismic performance of structures. Seismic damage investigations and related studies have shown that in order to control the residual displacement of structures after earthquakes, improve the recoverability of structures, and reduce earthquake disasters Due to the social and economic impacts, the shock-absorbing and isolating bearing should have large displacement adaptability, self-resetting ability, energy consumption buffering ability and good limit ability. [0003] However, there are following major problems and deficiencies in the prior art: ...

AI Technical Summary

Problems solved by technology

For the scheme of increasing the size of the spring, due to the limitation of the support installation space, it is not practical and the project cost is high; for the scheme of reserving the initial gap, the support has the problem of lack of self-resetting force within a certain displacement range, and Impact problems with sudden changes in stiffness

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