Seismic performance of Distributed Knee-Brace (DKB) system as a retrofit for soft-story wood-frame buildings

Mikhail Gershfeld, Charles Chadwell, Elaina Jennings, Ershad Ziaei, Weichiang Pang, Xiaoyun Shao, John Van De Lindt

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

The seismic performance of the Distributed Knee-Brace (DKB) system was investigated as a retrofit option for weak-story wood-frame buildings. The performance of the DKB system was evaluated numerically using simplified hand calculations and 2D non-linear dynamic analyses. The numerical simulation results were validated using: (1) reversed cyclic tests of two, four-frame, full-scale test specimens each with different knee-brace configurations; (2) dynamic testing of one of the configurations; and (3) slow pseudo-dynamic hybrid simulation of a three-story wood-frame building with the DKB system retrofit. The DKB system proved to be a viable retrofit option for weak-story buildings with acceptable load-deformation characteristics.

Original languageEnglish (US)
StatePublished - 2014
Externally publishedYes
EventWorld Conference on Timber Engineering: Renaissance of Timber Construction, WCTE 2014 - Quebec City, Canada
Duration: Aug 10 2014Aug 14 2014

Conference

ConferenceWorld Conference on Timber Engineering: Renaissance of Timber Construction, WCTE 2014
Country/TerritoryCanada
CityQuebec City
Period8/10/148/14/14

Keywords

  • FEMA P-807
  • Hybrid test
  • Knee-Brace
  • Reversed cyclic
  • Seismic retrofit
  • Soft-story
  • Timber
  • WCTE 2014
  • Weak-story
  • Wood-frame

ASJC Scopus subject areas

  • Forestry
  • Plant Science

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