Transcription of Reinforced Concrete Pipe
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Reinforced Concrete PipeHow to Assess the Transition from Indirect to DirectDesign Methods in Deep Cover InstallationsAdam Braun, , ManitobaCanada Introduction, Background, andHistory Indirect Design SIDD Installations and DirectDesign Transition from Indirect toDirect Design ConclusionRigid Rugged Resilient2 Introduction,Background &HistoryRigid Rugged Resilient3 Introduction Reinforced Concrete Pipe (RCP) First produced in 1896 inFrance Brought to North America in1905 Rigid Rugged Resilient4 Introduction Indirect Design(Marston/Spangler Analysis) Developed in the 1920 s and 30 s Empirically derived Excellent performance record in lowto moderate soil covers Direct Design (Heger/Selig) Developed in the 1970 s and 80 s Reinforced Concrete design theory Limit states design principals Applicable for large diamet
concrete pipe in sizes up to 36” as both drain tile and sewer pipe • The “large diameter” pipe was prone to failure shortly after installation • Began with investigation into failures 6 Rigid Rugged Resilient At the time there was no quantifiable design method for buried pipe!
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