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Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

Effects of the clearance between the core plate and restraining part on the structural... The clearance between the core plate and the restraining part of the buckling‐restrained brace using steel mortar planks (BRBSM) considerably affects the failure mode and hysteretic characteristics of the brace. A clearance adjustment construction is proposed for the BRBSM which can control the clearance through partially pasting clearance adjustment materials and polishing the mortar plank surface. First, the clearance adjustment construction workflow and quality control are demonstrated, and it is verified that the clearance can be assured by fabricating specimens. Further, the effects of the difference in clearance between the core plate and restraining part on the structural performance of the BRBSM in terms of failure behaviour, increase strength ratio, buckling mode and cumulative plastic strain energy ratio are evaluated by conducting a cyclic axial loading test. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Steel Construction: Design and Research Wiley

Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

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Publisher
Wiley
Copyright
© 2022 Ernst & Sohn GmbH
ISSN
1867-0520
eISSN
1867-0539
DOI
10.1002/stco.202100042
Publisher site
See Article on Publisher Site

Abstract

The clearance between the core plate and the restraining part of the buckling‐restrained brace using steel mortar planks (BRBSM) considerably affects the failure mode and hysteretic characteristics of the brace. A clearance adjustment construction is proposed for the BRBSM which can control the clearance through partially pasting clearance adjustment materials and polishing the mortar plank surface. First, the clearance adjustment construction workflow and quality control are demonstrated, and it is verified that the clearance can be assured by fabricating specimens. Further, the effects of the difference in clearance between the core plate and restraining part on the structural performance of the BRBSM in terms of failure behaviour, increase strength ratio, buckling mode and cumulative plastic strain energy ratio are evaluated by conducting a cyclic axial loading test.

Journal

Steel Construction: Design and ResearchWiley

Published: Feb 1, 2022

Keywords: buckling‐restrained brace; steel mortar plank; clearance ratio; clearance adjustment construction; performance evaluation; Steel buildings; Experiments; Stahlhochbau; Versuche

References