Steel and Composite Structures

  • 제36권3호
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  • Pages.273-291
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  • 2020
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Seismic design rules for ductile Eurocode-compliant two-storey X concentrically braced frames

  • Costanzo, Silvia (Department of Structures for Engineering and Architecture, University of Naples "Federico II") ;
  • D'Aniello, Mario (Department of Structures for Engineering and Architecture, University of Naples "Federico II") ;
  • Landolfo, Raffaele (Department of Structures for Engineering and Architecture, University of Naples "Federico II")
  • 투고 : 2020.01.21
  • 심사 : 2020.07.05
  • 발행 : 2020.08.10
⟨ 이전 논문 다음 논문 ⟩

초록

Two-storey X-bracings are currently very popular in European practice, as respect to chevron and simple X bracings, owing to the advantages of reducing the bending demand in the brace-intercepted beams in V and inverted-V configurations and optimizing the design of gusset plate connections. However, rules for two-storey X braced frames are not clearly specified within current version of EN1998-1, thus leading to different interpretations of the code by designers. The research presented in this paper is addressed at investigating the seismic behaviour of two-storey X concentrically braced frames in order to revise the design rules within EN1998-1. Therefore, five different design criteria are discussed, and their effectiveness is investigated. With this aim, a comprehensive numerical parametric study is carried out considering a set of planar frames extracted from a set of structural archetypes that are representative of regular low, medium and high-rise buildings. The obtained results show that the proposed design criteria ensure satisfactory seismic performance.

키워드

참고문헌

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피인용 문헌

  1. Experimental investigation of a new lateral bracing system called OGrid under cyclic loading vol.35, 2022, https://doi.org/10.1016/j.istruc.2021.11.015