A dual-energy-demand-indices-based evaluation procedure of damage-control frame structures with energy dissipation fuses

Ke Ke, Chi Ho Michael Yam, Shuizhou Ke

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

At its core, energy demand indices under ground motions considering both peak responses and cumulative responses are quantified to develop a dual-energy-demand-indices-based procedure for damage-control behavior evaluation. Firstly, based on the experimentally validated hysteretic feature and representative ground motion ensembles, a parametric study is conducted considering the demand indices of the energy factor and the cumulative ductility. Results of the indices distribution and dispersion are presented in detail. Subsequently, a stepwise procedure that accounts for the peak demand and the cumulative demand is constructed. Then, the procedure is applied in prototype structures for validation. Results indicate that the consideration of dual energy demand indices is necessary for evaluation of systems with fuses, and these indices are influenced by structural nonlinear parameters and ground motions properties. The procedure based on the dual energy demand indices can be used to evaluate the structural damage-control behavior with satisfactory accuracy considering the peak response, the cumulative response, and the energy distribution along stories.
Original languageEnglish
Pages (from-to)61-82
Number of pages22
JournalSoil Dynamics and Earthquake Engineering
Volume95
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • Cumulative ductility
  • Damage-control
  • Energy demand indices
  • Energy factor
  • Pushover analysis
  • Structural fuse

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

Cite this