Buckling control of cast modular ductile bracing system for seismic-resistant steel frames

G. Federico, R. B. Fleischman, K. M. Ward

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The buckling behavior of a new ductile bracing concept for steel structures is examined. The system makes use of cast components introduced at the ends and the center of the brace to produce a special bracing detail with reliable strength, stiffness and deformation capacity. The system takes advantage of the versatility in geometry offered by the casting process to create configurations that eliminate non-ductile failure modes in favor of stable inelastic deformation capacity. This paper presents analytical research performed to determine the buckling strength and buckling direction of the bracing element based on the geometries of the cast components. Limiting geometries are determined for the cast components to control the buckling direction. Design formulas for buckling strength are proposed.

Original languageEnglish (US)
Pages (from-to)74-82
Number of pages9
JournalJournal of Constructional Steel Research
Volume71
DOIs
StatePublished - Apr 1 2012

Keywords

  • Earthquake resistant design
  • Modular construction
  • Special concentric braced frames
  • Steel castings
  • Steel lateral resisting system
  • Structural stability

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Metals and Alloys

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