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自复位结构体系在人们对结构抗震性能要求日益提高和基于性能抗震设计理念的背景下获得了大量关注。自复位结构体系具有以下优点:1)减小或避免主体结构损伤;2)耗散地震能量和减小地震作用;3)最小化结构残余变形;4)减少震后修复费用及其间接经济损失。本文主要介绍了三方面的容:自复位介绍、形状记忆合金(SMA)及其应用、PT装置及其抗震性能、摇摆机制简介。
Self-resetting structural systems have gained a great deal of attention in the context of ever-increasing demands for structural seismic performance and the concept of performance-based seismic design. The self-resetting structural system has the following advantages: 1) reducing or avoiding structural damage to the main body; 2) dissipating seismic energy and reducing the seismic effect; 3) minimizing structural residual deformation; 4) reducing post-earthquake repair costs and indirect economic losses . This article mainly introduces three aspects: self-resetting introduction, shape memory alloy (SMA) and its application, PT device and its seismic performance, introduction of swing mechanism.