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• Full Project Title:ÌýSeismic Evaluation of Hazard-Resistant Pipelines: Axial Testing of PVC, PVCO, and iPVC Pipe with CouplingÌý
• Year:Ìý2019
• Industry Partners:ÌýEast Bay Municipal Utility Department (EBMUD)
• CIEST Personnel: Cory Ihnotic, David Kyle Anderson, Jessica Ramos, DavidÌýBalcells, Brice Lucero, John Hindman, and co.
• Primary Investigator:ÌýProf. Brad Wham
• Summary:ÌýThe first in a series of testing programs at CU Boulder CIESTÌýinvestigating performance of critical lifeline systems under extreme loading conditions. This study focuses on theÌýresponse of various thermoplastic pipe materials and a coupling connection under externally applied axial and lateral loading.Ìý Internally pressurized, 6 in. (150 mm) diameter specimens were tested to failure under various loading scenarios including axial tension, compression, and cyclic loading as well as transverse 4-pt bending. This project initiatedÌýthe development of self-reacting test frame capable of applying dynamic tension and/or compressive loading in excess ofÌý100,000 lbs (445 kN) to linear structures up to 12 ft (3.66 m) long. CIEST’s 1,000,000 lb (4450 kN) four-post load frame was employed to apply lateral loading. Ìý
• View the full report here.

Appreciation is extended to collaborators David Katzev and Timothy Harris of EBMUD for their intellectual and practical contributions to the project.Ìý

[video:https://youtu.be/CSmie9je52A]

[video:https://youtu.be/2WdeWlrHH-E]

[video:https://youtu.be/-SHb-60S5CA]