Reliability-based evaluation of design and performance of steel self-centering moment frames

Gordana Herning, Maria Eugenia Moreyra Garlock, Erik Vanmarcke

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

Recently developed steel self-centering moment-resisting frames (SC-MRFs) have been analytically and experimentally validated as having the potential to eliminate structural damage under a design basis earthquake and restore their original vertical position following a major earthquake. Using Monte Carlo simulation, we subjected three nonlinear models of prototype SC-MRFs to thousands of synthetic ground motions, and recorded peak demand responses such as story drift and beam-column relative rotation. We used this data to examine the sensitivity of SC-MRF behavior to structural properties and geometry, seeking to generate recommendations to improve the existing design procedure. A reliability-based methodology was used to assess the likelihood of reaching the limit state of post-tensioned strand yielding. This study proposes modifications to the existing design procedure and illustrates a reliability-based methodology for developing improved seismic design recommendations.

Original languageEnglish (US)
Pages (from-to)1495-1505
Number of pages11
JournalJournal of Constructional Steel Research
Volume67
Issue number10
DOIs
StatePublished - Oct 1 2011

All Science Journal Classification (ASJC) codes

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

Keywords

  • Moment resisting frame
  • Post-tensioned
  • Reliability
  • Seismic design
  • Steel structure

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