Analysis of Reinforced Concrete Columns Under Sustained Load

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Title: Analysis of Reinforced Concrete Columns Under Sustained Load

Author(s): Vinit Chovichien, Martin J. Gutzwiller, and Robert H. Lee

Publication: Journal Proceedings

Volume: 70

Issue: 10

Appears on pages(s): 692-700

Keywords: beams (supports);building codes;columns (supports);creep properties; deflection;frames;loads (forces);reinforced concrete;slenderness ratio; stablity; static loads;stress-strain relationships;structural analysis.

Date: 10/1/1973

Abstract:
The results of a study of the sustained load effects on the interior reinforced concrete columns in rectangular building frames are presented. The two major variables considered are the column slenderness ratio and the level of sustained loads. The behavior under sustained loads is predicted by using a time-dependent stress-strain diagram for concrete. It is found that the column capacity decreases as the slenderness ratio and level of sustained load increase.