Seismic retrofit of steel-structure school gymnasia with energy dissipation devices and their effects on roof response

Torn Takeuchi, Yuki Tsutsumi, Tomohiko Kumagai, Toshiyuki Ogawa

Research output: Contribution to journalArticle

Abstract

A number of school gymnasia in Japan built in the 1970s in Japan have exhibited or lead one to foresee insufficient seismic performance, and seismic retrofits on them are still underway throughout the country. However, current assessment practices do not take into account the vertical vibration excitation peculiar to raised roofs, which heavily impacts the collapse of non-structural elements, such as ceiling components or lighting equipment. Energy dissipating retrofits are better suited than common strength-based retrofits to help reduce such excited vibration, however optimum design and evaluation methods remain unclear. This paper looks at the typical school gymnasia in Japan, and investigates retrofit design using elasto-plastie or viscous dampers, discussing its effects on roof response reduction and practical response estimation methods.

Original languageEnglish
Pages (from-to)1891-1900
Number of pages10
JournalJournal of Structural and Construction Engineering
Volume75
Issue number656
DOIs
Publication statusPublished - 1 Oct 2010

Keywords

  • Elasto-plastic damper
  • Equivalent linearization
  • School gymnasium
  • Seismic retrofit
  • Viscous damper

Fingerprint Dive into the research topics of 'Seismic retrofit of steel-structure school gymnasia with energy dissipation devices and their effects on roof response'. Together they form a unique fingerprint.

  • Cite this