Effects of Creep and Shrinkage on Prestressed Concrete Columns

by William J. Wilhelm, (M.ASCE), Asst. Prof. and Assoc. Chmn. of Civ. Engrg.; West Virginia Univ., Morgantown, WV,
Paul Zia, (M.ASCE), Prof. and Assoc. Dept. Head of Civ. Engrg.; North Carolina State Univ., Raleigh, NC,

Serial Information: Journal of the Structural Division, 1970, Vol. 96, Issue 10, Pg. 2103-2123

Document Type: Journal Paper


Results are presented for an analytical study of the effect of creep and shrinkage on the behavior and ultimate capacity of long rectangular prestressed concrete columns with hinged ends. The effects of concrete strength, steel percentage, slenderness ratio, eccentricity and partial prestressing were considered. The results indicate that long eccentrically loaded columns can be significantly increased by sustained loading. In addition the prestressing force in the column may be reduced appreciably under sustained loading.

Subject Headings: Prestressing | Load factors | Concrete columns | Creep | Shrinkage (material) | Structural behavior | Prestressed concrete | Hinges

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