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


IASS Symposium 2016

SESSION: Seismic Analysis, Behavior & Design

Proposal for the seismic retrofitting method for wood-frame houses using earthquake-proof shelter

< 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: 9
  • Title: Proposal for the seismic retrofitting method for wood-frame houses using earthquake-proof shelter
  • Author(s): Mizuki Ichikawa, Yuki Ozawa, Kentaro Ide
  • Keywords: earthquake-proof shelter, wood-frame house, seismic retrofitting
Abstract
In Japan, there are tens of millions of wood-frame houses. It is said that about 25 percent of them don't have enough strength for large seismic forces. On Hanshin-Awaji Great Earthquake Disaster in 1995, more than six thousands of people were killed by collapse of wood-frame houses. A means to protect the people from large earthquake disaster is inserting earthquake-proof shelters in these houses. However, there is a large disadvantage that the safety of people can't be assured if they don't exist in the shelter at the moment the earthquake occurs. In this paper, a new method of improving the seismic performance by connecting the shelters with the wood-frame of existing houses is proposed. It is necessary to simulate the overturn motion of the shelters by horizontal load because in most cases the shelters aren't fixed to the existing houses.

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