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Article: Equivalent uniform moment diagram factor for structural concrete columns.(Report)
- Article from:
- Canadian Journal of Civil Engineering
- Article date:
- February 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 NRC Research Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
A slender column that is subjected to axial load and end moments producing moment gradient in single or reverse curvature bending deflects laterally and is, therefore, subjected to additional second-order bending moments along its height (Figs. 1a-1d). The Canadian Standards Association (CSA) standard for design of concrete structures (CSA 2004) permits the use of an equivalent uniform moment diagram factor ([C.sub.m]) for computing the effect of moment gradient, along the column height, caused by unequal column end moments. The concept of the equivalent uniform moment diagram was introduced into design practice to eliminate the need for extensive ...