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Structural Engineering and Mechanics
  Volume 25, Number 3, February20 2007 , pages 291-310
DOI: https://doi.org/10.12989/sem.2007.25.3.291
 


Ground strain estimation for lifeline earthquake engineering
Takeshi Koike, Osamu Maruyama, and Lessandro Estelito Garciano

 
Abstract
    Current seismic design guidelines in Japan are diverse in the seismic ground strain estimates, because the concepts on a horizontally propagating wave model are not consistent in various seismic design guidelines including gas, water and other underground structures.
The purpose of this study is (a) to derive the analytical methods to estimate the ground strains for incident seismic waves, (b) to develop a statistical estimation technique of the ground strains, and finally (c) to compare the theoretical estimation with the observed data which was measured at 441 sites in the 1999 Chi-Chi Earthquake in Taiwan.
 
Key Words
    ground strain; spatial variation; buried pipelines; seismic waves
 
Address
Takeshi Koike, Osamu Maruyama, and Lessandro Estelito Garciano; Musashi Institute of Technology, 1-28-1 Tamazutsumi, Setagaya-ku, Tokyo, 158-8557, Japan
 

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