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Unformatted text preview: With different end conditions, Sr are different. 4/17/11 Slenderness Ratio k l S eff r = l eff, instead of l , is used to calculate Sr. With different end conditions, l eff is given in above table. 4/17/11 Intermediatelength column with E S S S A P r yc yc cr 1 2 2 = π Columns with Eccentric Loading For columns with eccentric loading, the unit load can be calculated with secant column formula: (3) 4/17/11 Columns with Eccentric Loading Comparison of secant and Euler equations of steel with Sy=40 psi 4/17/11 Struts or Short Columns For short compression members (struts), the critical unit load can be calculated with following equation: And limiting slender ratio is given by: If slenderness ratio is less than limiting Slender ratio, use above equation to calculate critical unit load, otherwise use secant formula (Equation 3) in slide 16. (4)...
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This note was uploaded on 04/16/2011 for the course ENGR 3220 taught by Professor Turro during the Spring '11 term at UOIT.
 Spring '11
 turro
 Mechatronics, Machine Design

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