Unformatted text preview: 2.24 Members AB and CD are 1% in.diameter steel rods, and members BC and AD PROBLEM 2.25 7 I I . I .
are 7; 1n.d1ameter steel rods. When the turnbuckle is tightened, the diagonal member AC is put in tension. Knowing that E = 29 X 106 psi and h = 4 ft. determine the largest
allowable tension in AC so that the deformations in members AB and CD do not
exceed 0.04 in. 2.25 For the structure in Prob. of 2.24, determine (a) the distance It so that the deformations in members AB, BC, CD and AD are all equal to 0.04 in., (b) the
corresponding tension in member AC. SOLUTION (60 S'l‘asli'c'st Use Join'l “B as 9.4%.: beat, Fm». simijmr 'l'n‘othﬁes '
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For 2:} 0a,? aleForm atl'i'cms
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Equul‘u‘nj expressions 'For Fin.5
haréﬁa E:&§=M=d‘;
" h Au. 4 b1 so Eda." or." {A} Sﬁ‘H’Inj 8.53 3 33¢, 1' 0.04 I‘m. S .. Fae. l1)  F86 ; E Albee $8: 2 (2?Yl0‘)3§(.%)1(004)
G = lasagna“ IL. FAB : l7I; Flu. I: %(l°l.376>¢(03) "‘ Til9'2 >403 [L From +LQ lorce “triangle F59 = FA; :1 FaaLt Fm: = 31.6 ”[03 1/3. "‘ ...
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 Summer '10
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