A column 3 m long and pinned at both ends is carries an axial load of 190 kN. The column is made up of 2 angles of unequal legs with long legs back to back and separated by a gusset plate whose thickness is 11 mm. Use A36 steel with Fy = 248 MPa and E = 200 GPa. Three sections are being considered, as follows, with their respective properties relevant of this problem: Section Area ( m? ) rx ( m ) ry ( m ) 2L 125 x 75 x 12 0.00454 0.0390 0.0160 2L 150 x 90 x 10 0.00463 0.0480 0.0195 2L 150 x 90 x 12 0.00550 0.0500 0.0251 a. Which of the sections gives the largest allowable compressive stress? b. Which of the sections gives the most economical (lightest) section for the given load?

A column 3 m long and pinned at both ends is carries an axial load of 190 kN. The column is made up of 2 angles of unequal legs with long legs back to back and separated by a gusset plate whose thickness is 11 mm. Use A36 steel with Fy = 248 MPa and E = 200 GPa. Three sections are being considered, as follows, with their respective properties relevant of this problem: Section Area ( m? ) rx ( m ) ry ( m ) 2L 125 x 75 x 12 0.00454 0.0390 0.0160 2L 150 x 90 x 10 0.00463 0.0480 0.0195 2L 150 x 90 x 12 0.00550 0.0500 0.0251 a. Which of the sections gives the largest allowable compressive stress? b. Which of the sections gives the most economical (lightest) section for the given load?

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter2: Concepts In Structural Steel Design

Section: Chapter Questions

Problem 2.1P: A column in a building is subjected to the following load effects: 9 kips compression from dead load...

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