CIVL_231_Assignment_5_Solution

7 0699 144 march 19 2013 231kip 472kip assignment 5

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Unformatted text preview: it is pinned-fixed. ∗ 29000 ∗ 16.7 1 ∗ 144 ∗ 29000 ∗ 16.7 0.699 ∗ 144 March 19 2013 231kip 472kip Assignment 5 Solution CIVL 231 Solid Mechanics II Problem 1 (original values): 24ft long W6x15 steel column with E=29000ksi; σY= 60ksi; Ix=29.1in4; Iy=9.32in4; A=4.43in2. ∗ a) 60 ∗ 4.43 265.8kip The column is pin supported at both ends and pin braced about its weak axis at mid height. ∗ 29.1 29 10 1 ∗ 288 . ∗ 9.32 29 10 1 ∗ 144 b) 128.64 kip The column is fixed at both ends and pin braced about its weak axis at mid height. ∗ 29.1 29 10 0.5 ∗ 288 ∗ 9.32 29 10 0.699 ∗ 144 c) 401.7kip . The column is fixed at both ends but the pin brace at mid height is NOT installed. ∗ 29.1 29 10 0.5 ∗ 288 . 401.7kip ∗ 9.32 29 10 0.5 ∗ 288 . . d) The column is fixed at the bottom, pin braced about its weak axis at mid height, braced at the top in direction of the x-axis, and can sway in direction of the y-axis. ∗ 29.1 29 10 2 ∗ 288 . . For rotation about y-axis supports are different for top column and the lower colu...
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This document was uploaded on 04/09/2014.

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