A simplified theoretical prediction of lateral deformation behaviour of structural pipe repair systems
Presentation
Paper/Presentation Title | A simplified theoretical prediction of lateral deformation behaviour of structural pipe repair systems |
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Presentation Type | Presentation |
Authors | Kiriella, Shanika, Manalo, Allan, Tien, , Cam Minh Tri, Karunasena, Warna, Ahmadi, Hamid, Salah, Ahmad, Dixon, Patrick, Wham, Brad P. and O'Rourke, Thomas D. |
Number of Pages | 11 |
Year | 2023 |
Place of Publication | Australia |
Conference/Event | No-Dig Down Under 2023 Conference |
Event Details | No-Dig Down Under 2023 Conference Delivery In person Event Date 12 to end of 14 Sep 2023 Event Location Brisbane, Australia Event Venue Brisbane Convention and Exhibition Centre Event Web Address (URL) |
Abstract | : Internal replacement pipe (IRP) system is an emerging trenchless pipeline repair technology. Lateral deformation caused by surface loads from vehicular traffic is considered to be the worst condition for IRP systems, particularly for circumferentially cracked host pipes. However, available studies on the flexural behaviour of circumferentially cracked host pipes with IRP repair systems are limited. Moreover, a simplified and robust analytical model that can reliably predict the behaviour of circumferentially cracked host pipes with IRP systems subject to bending is not available. Consequently, a simplified analytical model based on fibre model analysis (FMA) was developed to examine the load-deflection behaviour of IRP systems in host pipes with circumferential cracks. Finite element analysis (FEA) was also performed to simulate the bending behaviour of the IRP system and to validate the FMA results. FMA showed a good correlation between the linear and non-linear load-deflection behaviours of the IRP in a host pipe with different crack widths. The findings of this study will give the research community and construction specialities a better knowledge of the behaviour of circumferentially cracked gas pipelines repaired with IRP systems under bending. The FMA analytical model, which was calibrated and validated with experimental, and FEA numerical results, will be a very reliable and simple tool for predicting the flexural behaviour of IRP systems for trenchless repair subjected to lateral loading, in contrast to expensive laboratory experiments and time-consuming FEA. |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
400508. Infrastructure engineering and asset management | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
University of Colorado Boulder, United States | |
Cornell University, United States |
https://research.usq.edu.au/item/z4x57/a-simplified-theoretical-prediction-of-lateral-deformation-behaviour-of-structural-pipe-repair-systems
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