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Unformatted text preview: \ 2.19 Both porticms 9f the rod ABC are made Of an aluminum for which
= [0 GPa. Knowing that thﬁ magnitude of P is 4 kN, datarmina (a) {he value
Of Q so that the deﬂection 8.? A is zero, (1’)) the corresponding deﬂection 0f 8. 13
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mine the deformations of (he members ED and DE, knowing {hat their @3333»
sectional areas are 2 in3 and 3 i133, raspectiveiy. 2.27 Each of the links AB and CD is made 0f aluminum (E = 75 GPa)
and has a CI‘Oss—ssctional arm of 125 mmz, Knowing that they support the rigid
member BC, d€fem’xine the deﬂection of point B 4 J, S
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0'2» 15 _, L _‘ 2,332 For the steel truss (E = 29 X 105 psi) and loading shown, deter—
mine the deformations of the members 80 and DE? knowing that their C1‘OSS~
sectional areas are 2 in2 and 3 ml, respectively. 30 laps A 227 Each of the links AB and CD is made 0f aluminum (E = 75 GPa) Wm“ “WM”: and has a cross—sectima} area of 125 mm? Knowing [hat they suppoﬁ the rigid
membcr BC, determine the deﬂection of point 8
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:30 Di? " 237 The 1.5—m concrete, post is reinfqmed with six steel bars, each with
a 28—mm diametar. Knowing that Es i 200 GPa 81141 E: = 25 (3%, determine
the normal stresses in the $333] and in {ha generate when a ISSO—kN axial ' P .
; centric force F is appﬁed to the pest  450 mm that of brass, are joinzid 
the leading ShGWﬂ and i
a reactions at 211 rods, on: of steel and the a
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E5 = 200 GE’a and E,
n of 90331 C, A 1‘30, , 7100 ‘ at C and
knowing that ins {a} th A and E‘ (b) the deﬁcctio r—‘ISOﬁg—HMO g1 40—min (ﬁlm 530er dzam , ( z i i Z ,.
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 Spring '09
 MOORTHY

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