Superelastic shape memory alloy (SMA) is a potential candidate for use in structural damping devices due to its unique mechanical properties. A class of novel re-centring damping device (RDD) is presented. Being configurated simply, the device comprises two functional groups of SMA strands, such as the pre-tensioned strands and the un-pre-centering strands, resulting in a perfect energy dissipation compatible with the negligible residual displacement. Based on the Lagoudas constitutive model and the mechanical analyses, the theoretical model of RDD is established, and comparisons of experiments and simulations validate its effectivity. Time history and energy analyses of an asymmetric damped single-floor building under bi-directional earthquakes are performed. Results show that with the ratio of cross-sectional area of un-pre-tensioned strands to pre-tensioned strands being 1 or 2, the RDD can provide appropriate damping and stiffness to attain the reduction of the coupled lateral-torsional response for the asymmetric structure and the lower cost simultaneously.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    An Innovative Shape Memory Alloy Damper for Torsionally Coupled Seismically Excited Structures


    Contributors:
    Ren, W. J. (author) / Li, H. N. (author) / Song, G. B. (author)

    Conference:

    11th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments ; 2008 ; Long Beach, California, United States


    Published in:

    Publication date :

    2008-09-04




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Vibration Control of Torsionally Coupled Building Using Tuned Liquid Column Ball Damper

    Pandey, Dhirendra Kumar / Mishra, Sudib Kumar | TIBKAT | 2020


    Neural Network Based Vibration Control of Seismically Excited Civil Structures

    Blachowski, Bartlomiej / Pnevmatikos, Nikos | BASE | 2018

    Free access

    Torsionally Resilient Drive Lines

    Mazziotti, P. J. | SAE Technical Papers | 1960


    Torsionally resilient drive lines

    Mazziotti, P.J. | Engineering Index Backfile | 1960


    Torsionally deforming energy attenuator

    WILLIAMS SCOT | European Patent Office | 2019

    Free access