Sensor-based warranty system for improving seismic performance of building structures

Ryu Miyamoto, Akira Mita

Research output: Contribution to journalConference articlepeer-review


This paper proposes a warranty system based on a seismic performance agreement, and investigates its feasibility. Specifically, we focus on making clear to building users the relationship between seismic force and seismic damage or loss, and propose a warranty agreement in which accountability of seismic loss is defined in terms of ground motion parameters obtained by a seismic sensor. This study uses the Japan Meteorological Agency seismic intensity scale (I-jma) because of its general acceptance and recognition. A portfolio of buildings in 10 suburbs of the Kanto region is chosen for seismic portfolio analysis. The following conclusions were derived: 1. For a portfolio of 10 base-isolated buildings, the builder's seismic expected loss was found to be approximately 0.01%. 2. In regards to feasibility of risk finance by seismic derivatives, this study found that it is possible to transfer most of builder's risk through a 0.01% premium rate. 3. Builder risk reduction was verified by use of a seismometer. 4. A new contract warranty agreement for seismic loss insurance for users was proposed, and it can reduce the premium to 1/15 of the current seismic insurance schemes.

Original languageEnglish
Article number69322B
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2008 Jun 2
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008 - San Diego, CA, United States
Duration: 2008 Mar 102008 Mar 13


  • Risk transfer
  • Seismic performance
  • Sensor-based system
  • Warranty system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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