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http://dx.doi.org/10.7843/kgs.2015.31.9.53

Estimation of Applicability of Empirical Design Procedure for Predicting Seismic Response of Buried Gas Pipelines through 3D Time-history Analysis  

Kwak, Hyungjoo (Dept. of Civil and Environmental Engrg., Hanyang Univ.)
Park, Duhee (Dept. of Civil and Environmental Engrg., Hanyang Univ.)
Lee, Jangguen (Korea Institute of Construction Technology)
Kang, Jaemo (Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.31, no.9, 2015 , pp. 53-68 More about this Journal
Abstract
Longitudinal strain is an important component of seismic design for buried pipelines. A design procedure which determines the wavelength from site natural period and shear wave velocity of the soil layer and closed-form solutions of pipelines under a harmonic motion is typically used in design. However, the applicability of the procedure has not yet been thoroughly investigated. In this paper, displacement-time histories extracted from 1D site response analyses are used in 3D shell-spring model to accurately predict the response of pipelines. The results are closely compared to those from the design procedure. The area of interest is East Siberia. Performing a site response analysis to determine site specific displacement time history is highlighted. The site natural period may be used to predict the predominant period of the acceleration time history, but cannot be used to estimate the predominant period of the displacement time history. If an accurate estimate of the predominant period of the displacement time history is provided, it is demonstrated that the design equation can be successfully used to predict the response of pipelines.
Keywords
Axial strain; Bending strain; Buried pipeline; Wavelength; 3D shell-spring model;
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Times Cited By KSCI : 2  (Citation Analysis)
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