A Novel Steel Pipe Joint for Enhancing Pipeline Seismic Resilience I: Development and Validation
Publication: Lifelines 2022
ABSTRACT
During the last four years, an extensive experimental project has been launched to determine the structural performance of lap welded joints under ground-induced deformations, mainly due to severe seismic events. The research consists of full-scale physical experiments, supported and validated by numerical finite element simulations. Previous experimental results indicated a remarkable strength and deformation capacity of the standard lap welded joints without loss of water containment. The latest phase of the research focuses on the behavior, analysis, and design of a new seismic resistant lap welded joint. Results of a series of additional full-scale experiments on the structural performance of the new lap welded joint under strong axial and bending loading conditions are presented, supported by finite element simulations. The new lap welded joint comprises the standard lap weld configuration with an additional small geometric projection introduced at a specific location near the field applied fillet weld, resulting in consistent buckling of the steel pipe cylinder and not the lap weld joint, during extreme loading. The proposed joint, referred to as “Seismic Resilient joint” or “SR-joint” (patent pending), offers an efficient, reliable, yet economical solution for welded joints in steel water pipelines constructed in seismic areas.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Chatzopoulou, G., Fappas, D., Karamanos, S. A., Keil, B., and Mielke, R. D. (2018). “Numerical simulation of steel Lap welded pipe joint behavior in seismic conditions.”, ASCE Pipelines Conference, Toronto, Canada.
Karamanos, S. A., Sarvanis, G. C., Keil, B., and Card, R. J. (2017a). “Analysis and Design of Buried Steel Water Pipelines in Seismic Areas.”, ASCE Journal of Pipeline Systems Engineering & Practice, Vol. 8, Issue 4.
Keil, B. D., Gobler, F., Mielke, R. D., Lucier, G., Sarvanis, G. C., and Karamanos, S. A. (2018). “Experimental Results of Steel Lap Welded Pipe Joints in Seismic Conditions”, ASCE Pipelines Conference, Toronto, Canada.
Keil, B. D., Lucier, G., Mielke, R. D., Fappas, D., Sarvanis, G. C., Chatzopoulou, G., and Karamanos, S. A. (2020). “Experimental Investigation of Steel Lap Welded Pipe Joint Performance under Severe Axial Loading Conditions in Seismic or Geohazard Areas”, ASCE Pipelines Conference, San Antonio, Texas.
McPherson, D. L., Duffy, M., Koritsa, E., Karamanos, S. A., and Plattsmier, J. R. (2016). “Improving the Performance of Steel Pipe Welded Lap Joints in Geohazard Areas”, ASCE Pipelines Conference, Kansas City, Missouri.
Nakazono, H., Hasegava, N., Wham, B. P., O’Rourke, T. D., and Blake, B. (2019). “Innovative Solution to Large Ground Displacement Using Steel Pipe for Crossing Fault”, ASCE Pipelines Conference, Nashville, Tennessee.
Sarvanis, G. C., Karamanos, S. A., Vazouras, P., Mecozzi, E., Lucci, A., and Dakoulas, P. (2018). “Permanent earthquake-induced actions in buried pipelines: Numerical modeling and experimental verification”, Earthquake Engng Struct Dyn., pp 1-22.
Sarvanis, G. C., Chatzopoulou, G., Fappas, D., Karamanos, S. A., Keil, B., Mielke, R. D., and Lucier, G. (2019). “Finite Element Analysis of Steel Lap Welded Joint Behavior under Severe Seismic Loading Conditions”, ASCE Pipelines Conference, Nashville, Tennessee.
Information & Authors
Information
Published In
History
Published online: Nov 16, 2022
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.