Abstract
Earthquake time-history analyses have been performed for a buried gas pipeline of API 5L Grade X65, which is popularly used in Korea. For this purpose, various parameters such as the type of buried gas pipeline, end-restraint conditions, soil characteristics, single and multiple earthquake input ground motions, and burial depths are selected. A comparative study has been performed to obtain the response characteristics of strains in a buried pipeline section, axial relative displacement, and transverse relative displacement. The capacity evaluation of the pipeline with respect to the response characteristics has been performed in comparison with the allowable strain and displacement capacity in axial and transverse directions, as suggested by the Guidelines for the Seismic Design of Buried Gas Pipelines, KOGAS. The present study is expected to provide useful information for an effective seismic evaluation of a buried gas pipeline.
| Original language | English |
|---|---|
| Pages (from-to) | 1011-1023 |
| Number of pages | 13 |
| Journal | Engineering Structures |
| Volume | 31 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2009 May |
| Externally published | Yes |
Bibliographical note
Funding Information:This paper was partially supported by the Korea Research Foundation Grant funded by the Korean government (MOEHRD) (KRF-2006-331-D00564) and also by the research group of “Standardization of Construction Specifications and Design Criteria based on Performance (’06–’11)” of the “Construction & Transportation R&D Policy and Infrastructure Project”.
Keywords
- Buried pipeline
- Deformation capacity
- Earthquake analysis
- Pipeline bend
- Soil type
ASJC Scopus subject areas
- Civil and Structural Engineering