지진파 입사방향에 따른 매설관 종방향 응답특성 규명Effect of incident Direction of Earthquake Motion on Seismic Response of Buried Pipeline
- Other Titles
- Effect of incident Direction of Earthquake Motion on Seismic Response of Buried Pipeline
- Authors
- 곽형주; 박두희
- Issue Date
- Sep-2015
- Publisher
- 한국지반환경공학회
- Keywords
- 3D shell-spring model; Buried pipeline; Soil-structure interaction; Axial strain; Bending strain
- Citation
- 2015년 한국지반환경공학회 학술발표회논문집, pp.211 - 214
- Indexed
- OTHER
- Journal Title
- 2015년 한국지반환경공학회 학술발표회논문집
- Start Page
- 211
- End Page
- 214
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156322
- Abstract
- In this paper, a 3D shell-spring model that can perform time history analysis of buried pipelines is used to evaluate the effect of the incident direction of the earthquake motion. When applying harmonic motions, it is shown that the period of vibration has pronounced influence on the response of buried pipelines. With decrease in the period, the curvature of the pipeline and corresponding response are shown to increase. To evaluate the effect of the incident angle, the motions are applied in the direction of the horizontal and vertical planes. Under motions subjected in horizontal and vertical planes at an angle of 45° from the longitudinal axis of the buried pipeline, the axial deformation is shown to contribute greatly to the response of the pipelines. When imposing two-components simultaneously, the calculated response is similar to the case where only single-component is imposed. It is because one component only induces bending strain, resulting in very small increase in the response. The trend of the response is shown to be quite similar for recorded motions. Therefore, it is concluded that use of a single-component is sufficient for estimation of the longitudinal response of buried pipelines.
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