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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: An Experimental Study on High-Strength Concrete Column Strength Subjected to Eccentric Loads
Author(s): Jae-Hoon Lee, Hae-Geun Park and Young-Shik Park
Publication: Special Publication
Appears on pages(s): 683-704
Keywords: Columns (supports); failure; high-strength concretes; strains
Abstract:High strength concrete has an advantage of strength capacity and stiffness especially for column elements. This paper is a part of a research plan aimed at verification of basic design rules to high-strength concrete columns. A total 24 column specimens were tested to investigate structural behavior and strength of eccentrically loaded reinforced concrete tied columns. The main variables included in this test program were concrete compressive strength, steel amount, eccentricity, and slenderness ratio. The concrete compressive strength varied from 34.9 Mpa to 70.4 Mpa and the column steel ratios were between 1.1 % and 5.5 %. The eccentricity was selected for the different failure modes, i.e., compression control, balanced point, and tension control. The slenderness ratio varied from 19 to 6 1. The column specimens with same slenderness ratio but with different concrete compressive strength were constructed and tested. Experimentally obtained column strength were compared with the analytical results by use of an equivalent rectangular stress block, a trapezoidal stress block, and a modified rectangular stress block. And also, the failure mode and concrete ultimate compressive strain were observed and discussed in this paper.
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