Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

Online IASS Proceedings

IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Seismic Analysis, Behavior & Design

Collapse Mechanism of Wide-area Suspended Ceiling in School Gymnasium

< Table of Contents for Seismic Analysis, Behavior & Design
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Seismic Analysis, Behavior & Design
  • Pages: 10
  • Title: Collapse Mechanism of Wide-area Suspended Ceiling in School Gymnasium
  • Author(s): Tomohiro Sasaki, Atsushi Aoi, Koichi Kajiwara, Hiroyuki Tagawa, Daiki Sato
  • Keywords: suspended ceiling, collapse mechanism, seismic design, school gymnasium, steel structure, full-scale shake table experiment, E-Defense
Abstract
In the 2011 off the Pacific coast of Tohoku Earthquake, many suspended ceilings and other suspended equipment fell down due to the lack of their resistance to earthquakes. To mitigate severe damage to ceiling system caused by earthquakes, new seismic design code for suspended ceiling system was issued by the Ministry of Land, Infrastructure, Transportation and Tourism. However, the mechanism why and how suspended ceiling system falls down during earthquakes has not yet been clarified. In order to clarify the collapse mechanism of wide-area ceiling system and development of its countermeasure, new research project was launched and first series of full-scale shake-table experiments of wide-area ceiling system in school gymnasium was conducted. Based on experimental results, collapse mechanism of nonseismic ceiling was clarified and it was found that failure mechanism of the seismically designed ceiling depends on the ratio of strength of ceiling braces and its metal joints.

Read the complete paper (pdf) (requires membership)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.