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Experimental Study of All-Steel Buckling-Restrained Braces Under Cyclic Loading

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Book cover Proceedings of the International Conference on Earthquake Engineering and Structural Dynamics (ICESD 2017)

Part of the book series: Geotechnical, Geological and Earthquake Engineering ((GGEE,volume 47))

Abstract

Buckling-restrained braces (BRBs) are the type of braces which capable of yielding in tension and compression under cyclic loading. BRBs provide the nearly symmetrical hysteretic response under cyclic loading and higher energy dissipation. Though the all-steel BRBs are considered as cost-effective and light-weight, the main parameters influence their cyclic performance are the flexibility of steel restraining elements, friction between core the restrainers, and interlocking mechanism. In this study, the cyclic performance of all-steel BRBs (ABRB) with angle restrainers has been investigated experimentally. Two reduced-scale ABRB specimens with and without welded stiffeners are tested under cyclic displacements in accordance with AISC 341-10 (2010) provisions Both specimens are subjected to axial strain of 3.5%. The main parameters studied are hysteretic response, energy dissipation response, and displacement ductility. A finite element model has also been developed to predict the cyclic response of ABRB specimens and to compare the experimental results.

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Author information

Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, India

    Ahmad Fayeq Ghowsi & Dipti Ranjan Sahoo

Authors
  1. Ahmad Fayeq Ghowsi
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  2. Dipti Ranjan Sahoo
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Editor information

Editors and Affiliations

  1. Faculty of Civil and Environmental Engineering, School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland

    Rajesh Rupakhety

  2. Earthquake Engineering Research Centre (EERC), University of Iceland, Selfoss, Iceland

    Simon Olafsson

  3. Faculty of Civil and Environmental Engineering, School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland

    Bjarni Bessason

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Ghowsi, A.F., Sahoo, D.R. (2019). Experimental Study of All-Steel Buckling-Restrained Braces Under Cyclic Loading. In: Rupakhety, R., Olafsson, S., Bessason, B. (eds) Proceedings of the International Conference on Earthquake Engineering and Structural Dynamics. ICESD 2017. Geotechnical, Geological and Earthquake Engineering, vol 47. Springer, Cham. https://doi.org/10.1007/978-3-319-78187-7_6

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