Abstract
In this paper, Shape Memory Alloy (SMA) Pseudo-Rubber Metal (PRM) was studied, and comparative test on mechanical behavior with common Pseudo-Rubber Metal was carried out, which indicates the damp of SMA PRM overmatches that of common PRM. Moreover, SMA PRM damper device was studied and developed, which can bear pull and press action, dissipate energy by two SMA PRM elements, furthermore, owing to the stiffness of SMA PRM increases with increase of distortion, this device can play role in restricting distortion. In order to study the control efficiency of SMA Pseudo-Rubber Metal damper on aseismic pounding of high-pier bridge, under El Centro, Taft and artificial ground motion respectively, to carry out seismic pounding shaking testing of high-pier bridge steel model and aseismic pounding shaking table testing of high-pier bridge steel model, furthermore, analyze detailedly the control efficiency of SMA Pseudo-Rubber Metal damper, which is adapted to reduce seismic pounding device and restrictor in high-pier and long span bridges.
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