Buckling-restrained braces (BRBs) are a relatively recent development in the field of seismic-resistant steel structures. Their distinctive feature is the non-buckling behaviour typically achieved by encasing a steel core in a concrete-filled tube, but alternatives have been proposed. Restraining the brace from buckling enhances ductility significantly and allows a symmetric response under tension or compression forces. The design of BRB frames must consider a number of specific issues that are currently not covered by European standards and regulations. This paper presents a brief summary of the most recent research results and attempts to summarize the basic design issues as they emerge from both research and the codification rules of non-European Countries. Conclusions are drawn regarding future research required to address the development of design rules in Europe, too.
Review of steel buckling-restrained braces / DELLA CORTE, Gaetano; D'Aniello, Mario; Landolfo, Raffaele; Mazzolani, FEDERICO MASSIMO. - In: STEEL CONSTRUCTION. - ISSN 0049-2205. - 4:2(2011), pp. 85-92. [10.1002/stco.201110012]
Review of steel buckling-restrained braces
DELLA CORTE, GAETANO;D'ANIELLO, MARIO;LANDOLFO, RAFFAELE;MAZZOLANI, FEDERICO MASSIMO
2011
Abstract
Buckling-restrained braces (BRBs) are a relatively recent development in the field of seismic-resistant steel structures. Their distinctive feature is the non-buckling behaviour typically achieved by encasing a steel core in a concrete-filled tube, but alternatives have been proposed. Restraining the brace from buckling enhances ductility significantly and allows a symmetric response under tension or compression forces. The design of BRB frames must consider a number of specific issues that are currently not covered by European standards and regulations. This paper presents a brief summary of the most recent research results and attempts to summarize the basic design issues as they emerge from both research and the codification rules of non-European Countries. Conclusions are drawn regarding future research required to address the development of design rules in Europe, too.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.