Scattered shape memory alloy seismic reduction and isolation rubber support with automatic reset function

A memory alloy and rubber bearing technology, applied in the field of vibration isolation and shock absorption, to achieve the effect of excellent self-recovery ability, simple structure, and meet the requirements of vertical bearing capacity

Inactive Publication Date: 2015-08-12
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

[0004] Technical problem: The purpose of this invention is to solve the problem of vibration isolation and vibration reduction of bridges, high-rise buildings, grid shell steel structures and large-span construction projects, and propose a decentralized SMA core vibration isolation rubber with self-resetting function Support device

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  • Scattered shape memory alloy seismic reduction and isolation rubber support with automatic reset function
  • Scattered shape memory alloy seismic reduction and isolation rubber support with automatic reset function
  • Scattered shape memory alloy seismic reduction and isolation rubber support with automatic reset function

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Embodiment Construction

[0020] The invention provides a decentralized SMA core shock-absorbing and isolating device with self-resetting function (such as figure 1 ), including upper sealing plate 1.1, lower sealing plate 1.2, inner steel plate layer 2 of laminated rubber bearing, inner rubber layer 3 of laminated rubber bearing, outer rubber layer 4 of laminated rubber bearing, SMA mandrel 5, high-strength screw The cap 6 and the reserved holes 7 are used to reserve a plurality of channels in the laminated rubber bearing for placing SMA mandrels, and the channels are symmetrically distributed with respect to the center of the laminated rubber bearing. There are 4 holes in the laminated rubber bearing, and 4 SMA mandrels.

[0021] The diameter of the reserved hole of the laminated rubber bearing is slightly larger than the diameter of the SMA mandrel. The shape memory alloy mandrel can be fastened in the upper and lower sealing plates. When the laminated rubber bearing is horizontally deformed, the en...

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Abstract

The invention discloses a scattered shape memory alloy seismic reduction and isolation rubber support with the automatic reset function. The scattered shape memory alloy seismic reduction and isolation rubber support with the automatic reset function can be used for structure foundation seismic reduction and isolation systems such as bridges, high-rise buildings and net rack net shells and comprises a common laminated rubber support and four scattered shape memory alloy (SMA) core bars, and the superelasticity, shape memory effect and high damping characteristic of the shape memory alloy are sufficiently utilized. The common laminated rubber support and the SMA core bars are combined into a whole, the SMA core bars are scattered in the common rubber support, and therefore the scattered shape memory alloy seismic reduction and isolation rubber support has the advantages of being high in energy dissipation ability, large in damping and resistant to fatigue and has the automatic recovery capability. Compared with the prior art, the scattered shape memory alloy seismic reduction and isolation rubber support has the significant seismic reduction and isolation effect and reduces the post-seismic maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of shock-isolation and shock-absorbing systems for foundations of bridges, high-rise buildings and large-span construction projects, and in particular relates to superelasticity of shape memory alloys, shape-memory effects and high-damping shock-isolation and shock-absorbing methods. Background technique [0002] In recent years, shock-absorbing and isolating bearings have been widely used in bridge construction, and have gradually been promoted in the fields of grid structures, high-rise buildings and long-span building structures. It is a relatively mature vibration control measure to reduce the seismic response of structures by installing seismic isolation devices at the base of building structures or other parts. For this type of shock-absorbing and isolating device, the vertical stiffness is generally required to be large enough to support the upper structure, and the horizontal stiffness can prolong th...

Claims

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Application Information

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IPC IPC(8): E01D19/04E04B1/36E04B1/98
Inventor 王景全李帅郭大伟
Owner SOUTHEAST UNIV
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