505.7.1 Slender Unstiffened Elements, QJThe reduction factor Q, for slender unstiffened elements isdefined as follows:1. For flanges, angles, and plates projecting from rolledcolumns or other compression members:2.a. Whenb.c. WhenaWhenb.Q.1.415-0.74b750.56C.WhenQ₁ = 1.0E b0.56 <-<1.03OFe 1.03es ==WhenFor flanges, angles, and plates projecting from built-upcolumns or other compression members:EkWhen0.69Eb<0.64where:Fy0.64Q₁ = 1.0Q=1.415-0.65EkQ₂ =117Eke(505.7-4)0.90Ek(505.7-5)(505.7-6)(505.7-7)Eke(505.7-8)(505.7-9)4 and shall not be taken lessthan 0.35 nor greater than√h/t 0.76 for calculation purposes A built up compression section is shown in the figure. Thisforms a non-standard wide flange section. Assume KL - 2.4 m.Use A36 steel with Fy-248 MPa. Use NSCP Specifications.E-200 GPaa) Compute the reductionfactor Qs, forunstiffened elements.276mmSTEEL DESIGN - CIVIL ENGINEERING250mm12mm6mm

Built-up sectionKL = 2.4 mFy = 248 MPaE = 200 GPa

A built up compression section is shown in the figure. This forms a non-standard wide flange section. Assume KL - 2.4 m. Use A36 steel with Fy-248 MPa. Use NSCP Specifications. E-200 GPa a) Compute the reduction factor Qs, for unstiffened elements. 276mm STEEL DESIGN - CIVIL ENGINEERING 250mm 12mm 6mm

A built up compression section is shown in the figure. This forms a non-standard wide flange section. Assume KL - 2.4 m. Use A36 steel with Fy-248 MPa. Use NSCP Specifications. E-200 GPa a) Compute the reduction factor Qs, for unstiffened elements. 276mm STEEL DESIGN - CIVIL ENGINEERING 250mm 12mm 6mm

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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