Optimum Prestress of Tanks with Pinned Base

Troels Brøndum-Nielsen

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    Amin Ghali and Eleanor Elliott presented in their paper an interesting suggestion for prestressing of circular tanks without sliding joints. For many prestressed tanks the following construction procedure is adopted:In order to ensure compressive hoop forces in the wall near the base, the wall is allowed to slide freely in the radial direction during tensioning (free base).After tensioning such displacements are prevented (pinned base). The present paper addresses the problem of prestress of such tanks.Keywords: circular prestressing; creep properties; prestressed concrete; redistribution of stress; stress relaxation; tanks.
    Original languageEnglish
    JournalACI Structural Journal
    Pages (from-to)3-8
    Publication statusPublished - 1998

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