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


IASS Symposium 2016

SESSION: Extreme Loads & Disasters

Damage to suspended ceilings attached on large-span spatial structures and improvement measures

< Table of Contents for Extreme Loads & Disasters
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Extreme Loads & Disasters
  • Pages: 10
  • Title: Damage to suspended ceilings attached on large-span spatial structures and improvement measures
  • Author(s): Yan Lu, Yifeng Zhao, Qinghua Han, Jie Xu
  • Keywords: damage to the suspended ceilings, shaking table test, the flexible supporting spatial structures, a hinge set in the hanger rod
Abstract
The failure of suspended ceiling systems is one of the most widely reported types of non-structural damage in large-span spatial structures after an earthquake. This paper mainly summarizes damages to suspended ceilings attached on the large-span spatial structures by 2005 Miyagi-ken oki earthquake, 2010 Chile Earthquake, 2011 Great East Japan Earthquake, and 2013 Lushan Earthquake in China. Then a 4.0mラ4.0m elevated test frame constructed was used to test the suspended ceiling by the shaking table test. The well-shaped structure is designed to model the flexible supporting spatial structures. The damage and fragility evaluation of the regular suspended ceilings and improved suspended ceilings was summarized based on the shaking table tests. And the failure of the grid result from the failure of the connection of the main runner and cross runner, the cross runner and the brace runner. Several measures should be taken to protect the connection of the grid.

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