5. Two C310x45 channels are latticed together so they have equal moments of inertia about the principal axes. Determine the minimum length of column having this section, assuming pinned ends, E = 200 GPa, and a proportional limit of 240 MPa. What safe load will the column carry for the length of 12 m with a factor of safety of 2.5? For C310x45, take I = 67.3x10-6 m4 Ans L = 9.89 m, F = 738 kN

5. Two C310x45 channels are latticed together so they have equal moments of inertia about the principal axes. Determine the minimum length of column having this section, assuming pinned ends, E = 200 GPa, and a proportional limit of 240 MPa. What safe load will the column carry for the length of 12 m with a factor of safety of 2.5? For C310x45, take I = 67.3x10-6 m4 Ans L = 9.89 m, F = 738 kN

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.

Question

4. Repeat problem 3 assuming that the column is made of wood for which E =
10 GPa.
Ans. 81.34 mm
5. Two C310x45 channels are latticed together so they have equal moments
of inertia about the principal axes. Determine the minimum length of
column having this section, assuming pinned ends, E = 200 GPa, and a
proportional limit of 240 MPa. What safe load will the column carry for the
length of 12 m with a factor of safety of 2.5?
For C310x45, take I = 67.3×10-6 m4
Ans L = 9.89 m, F = 738 kN

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