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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Ultimate Strength Design Charts for Columns
Controlled by Tension
Author(s): Tung Au
Publication: Journal Proceedings
Appears on pages(s): 471-480
Keywords: no keywords
Abstract:Basic design equations for eccentrically loaded concrete columns in this paper are based on the report of the joint ACI-ASCE committee on ultimate strength design.1 To simplify the design procedure for columns with symmetrical rein-forcement or with round cores, design charts were provided in a paper by Whitney and Cohen. 2 While these charts are applicable to eccentrically loaded columns which may be controlled either by tension or compression, it seems that they are not entirely satisfactory for columns controlled by tension due to the close spacing of e’/t lines in this range. To meet such need, this paper examines certain omissions in the ACI-ASCE committee report, and presents a new set of design charts for rectangular sections with symmetrical reinforcement and for square and circular sections with spiral reinforcement which are subjected to combined bending and axial loads and controlled by tension.
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