• جزئیات بیشتر مقاله
    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 624
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the sliding hinge joint (shj) is a low-damage beam–column connection used in steel moment-resisting frames. it allows large beam–column rotation with minimal damage through sliding in asymmetric friction connections. it is however, subject to elastic strength and stiffness degradation and potential residual deformations under earthquake shaking and inelastic action. this paper describes the development of the self-centering shj incorporating ring springs installed to the beam bottom flange to improve the dynamic re-centering properties and reduce strength degradation. five 10-storey frames with ring springs generating up to 50% of joint moment capacity were studied analytically using a suite of 10 earthquake records. ring spring contribution of 40% improved the self-centering properties, resulting in residual drifts less than 0.1% under design level shaking. they also reduced strength degradation.

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