English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Miniature buckling-restrained braces (MBRBs) have been widely used as energy dissipating dampers in precast concrete and steel beam-to-column connections for their superior seismic performance. This paper proposes a new type of all-steel MBRBs with corrugated core bars, termed as corrugated MBRBs (CMBRBs), of which the core bars are confined by circular hollow section restraining tubes. Several D-shaped cuttings, termed as D-cuts, are made on core bar to improve ductility, so that the CMBRB can have a shorter length compared with conventional MBRBs, which leads to smaller installation space of the beam-to-column connections. Six specimens were designed and tested under cyclic loading to investigate effects of slenderness ratio and segment spacing-to-D-cut cross-section height ratio on seismic performance, and it was found that the two parameters have great effects on strength, stiffness, energy dissipation capacity and ductility. A theoretical model was established to predict stiffness and strength of the proposed CMBRB. Finally, a design procedure and recommended values for the parameters were proposed.

Experimental Study on Miniature Buckling-restrained Brace with Corrugated Core Bar