A W12x79 of A573 Grade 60 (Fy = 415 MPa) steel is used as a compression member. It is 7 m long, fixed at the top and bottom, and has additional support in the weak direction 3 m from the top. Properties of the section are: A = 14,500 mm² , Ix = 258.6 x 106 mm“, Iy = 84.375 x 106 mm* 1. Calculate the critical slenderness ratio of the member. A. 26.208 С. 36.706 В. 45.882 D. 27.529 2. Calculate the nominal axial load capacity of the column. A. 3 104 kN C. 4 213 kN B. 4 851 kN D.5 344 kN 3. that of the dead load. Use LRFD. Calculate the service axial dead load if the service axial live load is twice as A. 1 354 kN C. 1 093 kN B. 992 kN D. 634 kN

A W12x79 of A573 Grade 60 (Fy = 415 MPa) steel is used as a compression member. It is 7 m long, fixed at the top and bottom, and has additional support in the weak direction 3 m from the top. Properties of the section are: A = 14,500 mm² , Ix = 258.6 x 106 mm“, Iy = 84.375 x 106 mm* 1. Calculate the critical slenderness ratio of the member. A. 26.208 С. 36.706 В. 45.882 D. 27.529 2. Calculate the nominal axial load capacity of the column. A. 3 104 kN C. 4 213 kN B. 4 851 kN D.5 344 kN 3. that of the dead load. Use LRFD. Calculate the service axial dead load if the service axial live load is twice as A. 1 354 kN C. 1 093 kN B. 992 kN D. 634 kN

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.4.9P: Two steel wines support a moveable overhead camera weighing W = 28 lb (see figure part a) used For...

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