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Effect of Uncertain N-values to Seismic Performance Evaluation of Underground Structures  

Park, Ji-hwan (건국대학교 토목공학과)
Lee, Tea-hyung (건국대학교 토목공학과)
Publication Information
Journal of the Society of Disaster Information / v.6, no.2, 2010 , pp. 45-65 More about this Journal
Abstract
There has been tighten up the need of seismic retrofit about 31 public facilites since published "Korean Earthquake Damage Prevention Law". Therefore, seismic studies have been developed and enforced the studies. Measuring dynamic stiffness of subsurface materials influence on seismic performance evaluation to build up seismic retrofit. The soil dynamic properties for seismic performance evaluation are N-value from using SPT(standard penetration test), dynamic shear elastic modulus and dynamic deformation modulus using laboratory tests. The most unscientific element in ground dynamic properties involved uncertainties is obviously N-value using SPT. This study shows that effect of N-value included natural and artificial uncertainties to seismic performance evaluation of ground structures is not only approached probabilistic analysis using FOSM method and tornado diagram, but also review how to spread effect of seismic performance evaluation of ground structures.
Keywords
probability; N-valure; seismic retrofit; seismic performance evaluation; seismic;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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