2021
DOI: 10.1002/eqe.3555
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Seismic performance of bridges with novel SMA cable‐restrained high damping rubber bearings against near‐fault ground motions

Abstract: This study presents a novel type of shape memory alloy (SMA) cable-restrained high damping rubber (SMA-HDR) bearing, which is particularly suited to nearfault (NF) regions where the pulsing effect potentially exists in the ground motions. The working mechanism of the bearing is first described, followed by an experimental investigation on a full-scale SMA-HDR bearing specimen. The test results confirm the efficient restraining effect offered by the SMA cables, which contribute to 65% and 24.4% of the lateral l… Show more

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Cited by 80 publications
(50 citation statements)
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References 55 publications
(105 reference statements)
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“…Note that the selected radius of curvature for the convex surface of the fabricated isolator was 2000 m. It is possible to further improve the effectiveness of the proposed isolator by reducing the radius of curvature for the convex surface. It should be noted that the response of the isolator tested in this study is similar to those observed in recent studies (Fang et al, 2022; Liang et al, 2020) where a flat frictional bearing and slack SMA cables were combined. Therefore, these different SMA cable-based isolators should be comparatively evaluated for their pros and cons.…”
Section: Numerical Simulation and Parameter Analysessupporting
confidence: 87%
“…Note that the selected radius of curvature for the convex surface of the fabricated isolator was 2000 m. It is possible to further improve the effectiveness of the proposed isolator by reducing the radius of curvature for the convex surface. It should be noted that the response of the isolator tested in this study is similar to those observed in recent studies (Fang et al, 2022; Liang et al, 2020) where a flat frictional bearing and slack SMA cables were combined. Therefore, these different SMA cable-based isolators should be comparatively evaluated for their pros and cons.…”
Section: Numerical Simulation and Parameter Analysessupporting
confidence: 87%
“…Obtaining the hysteretic behavior under symmetrical cyclic loading is often a first and standard procedure to understand the basic performance of a member or material during earthquakes [ 95 , 96 , 97 , 98 , 99 , 100 ]. Figure 8 a shows typical stabilized hysteretic loops (taken from half-life cycle response) of Fe-SMA and steel, where the curves are divided into the elastic (linear) part, transition part and hardening part.…”
Section: Basic Propertiesmentioning
confidence: 99%
“…(as shown in Figure 9(f)). Many researchers have conducted a lot of theoretical and experimental studies on the behavior hysteretic of the SMA or the different types of SMA components for the application in the bridge engineering (Choi et al, 2020; Fang et al, 2021; Jung et al, 2019; Li et al, 2012; Schranz et al, 2021; Sza et al, 2021; Zhang et al, 2021). Structural vibration control using SMA is mainly divided into two groups: active control and passive control.…”
Section: Bridges With High-performance Materialsmentioning
confidence: 99%