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Purpose <p>This paper proposes a more efficient methodology of calculation than methodologies proposed by literature for the design of Buckling Restrained Braces (BRBs) in the framework of the Performance-Based Earthquake Engineering (PBEE).</p> Methods <p>The methodology is based on non-linear dynamic analyses with multiple scaled records to each PBEE level and the statistical treatment of the results. As a case study, a PC-BRB all-steel type has been applied to a RC 8-story frame structure. The BRB used in this research is a pinned diagonal type. The fundamental parameters of BRBs to attend PBEE requirements it was firstly established and a complete methodology to retrofit a reinforced concrete frame were finally proposed.</p> Results <p>Very promising results are discussed. As for example, it has been demonstrated that the initial values obtained from a static simplified method are appropriate as the first stage of the design process.</p>

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Modelling and Application of Bucking Restrained Braces for Performance-Based Earthquake Engineering Frameworks

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月29日

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  • Ariel Catalán,
  • Fabio Rizzo,
  • Xavier Cahís,
  • Maria Francesca Sabba,
  • Dora Foti

摘要

Purpose

This paper proposes a more efficient methodology of calculation than methodologies proposed by literature for the design of Buckling Restrained Braces (BRBs) in the framework of the Performance-Based Earthquake Engineering (PBEE).

Methods

The methodology is based on non-linear dynamic analyses with multiple scaled records to each PBEE level and the statistical treatment of the results. As a case study, a PC-BRB all-steel type has been applied to a RC 8-story frame structure. The BRB used in this research is a pinned diagonal type. The fundamental parameters of BRBs to attend PBEE requirements it was firstly established and a complete methodology to retrofit a reinforced concrete frame were finally proposed.

Results

Very promising results are discussed. As for example, it has been demonstrated that the initial values obtained from a static simplified method are appropriate as the first stage of the design process.