Seismic Fragility of Steel Piping System Based on Pipe Size, Coupling Type, and Wall Thickness
International Journal of Steel Structures, ISSN: 2093-6311, Vol: 18, Issue: 4, Page: 1200-1209
2018
- 6Citations
- 9Captures
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Article Description
In this study, a probabilistic framework of the damage assessment of pipelines subjected to extreme hazard scenario was developed to mitigate the risk and enhance design reliability. Nonlinear 3D finite element models of T-joint systems were developed based on experimental tests with respect to leakage detection of black iron piping systems, and a damage assessment analysis of the vulnerability of their components according to nominal pipe size, coupling type, and wall thickness under seismic wave propagations was performed. The analysis results showed the 2-inch schedule 40 threaded T-joint system to be more fragile than the others with respect to the nominal pipe sizes. As for the coupling types, the data indicated that the probability of failure of the threaded T-joint coupling was significantly higher than that of the grooved type. Finally, the seismic capacity of the schedule 40 wall thickness was weaker than that of schedule 10 in the 4-inch grooved coupling, due to the difference in the prohibition of energy dissipation. Therefore, this assessment can contribute to the damage detection and financial losses due to failure of the joint piping system in a liquid pipeline, prior to the decision-making.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85056755923&origin=inward; http://dx.doi.org/10.1007/s13296-018-0100-4; http://link.springer.com/10.1007/s13296-018-0100-4; http://link.springer.com/content/pdf/10.1007/s13296-018-0100-4.pdf; http://link.springer.com/article/10.1007/s13296-018-0100-4/fulltext.html; https://dx.doi.org/10.1007/s13296-018-0100-4; https://link.springer.com/article/10.1007/s13296-018-0100-4
Springer Science and Business Media LLC
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