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lecture14 - I FTnusseé Fra‘ andémachinés I “ 5*s w.f...

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Unformatted text preview: I _ FTnusseé: Fra‘ andémachinés I . . .. . ,.... + ' “ 5' *s'. w - - .f A _./ a i‘ _ a ' I I" I I. I I. I ' I £5 . .0 kg; . 3' . _ p i; " I! " ' I p-.. ‘ .' fl ‘ b I .1 ‘I " -' a. ' I, I . r - ~ '1 ‘u .- -- " r ‘" - - ‘5'"! I MEEN221 . 17/ 15,01bp2ft i 7 lS‘OLb litig- The awning structure of is supported by ball-and— N\ 1 O , _ socket joints at A and C and by a short link at ‘ ’3‘ 2+1 ' B.The SO-lb force is parallel to the y-axis, and B zbfi 44-1-3 +C x C '34}; :2. ‘3 —S N I the 150-lb force is parallel to the z-axis.Determine L/ 00 + o}, C <5"; ‘= r“:- 13 C? “‘ '* the support reactions and the force in each member .( 1 V1“ of this space truss. -. . ’ 2 MAY 1'- KM f gout-3 3341') <- C2; C 3/ \ " +. 150 1775(3513; =: o . fl _ Z O @jiFZ—o 6329,, —/5‘0Lb—r—AZ+C2_‘:—cy BY+C¥+A7€1 0 '-"/5"0 +Az+féfir=o \Q(f:-—S'O+A1(:O 0 Gave) —- \N‘F‘Og C TAD: Wm: ——/00 -’rgpg.4coa’9) —’!‘An(.¥os'9) =0 fiD=-ruaHLbs a» 719=l124LbCCWP> (/7 . 7E¢=—\1‘1Hl~bs cn‘I—bc: Darflbtcomfl / P—‘K‘w — AB '3 ) _—E\3 €353" "7076719): 0 "fl" (14I.H)=O '5— "TEBVQ‘ LEL'év _ 0707 ® " ABLC} -Tcgfl.é3—'|OO =0 @ifigzo — 50kb~-%) KB +<i\7, == 0 :7) ‘33 ——50kb"‘o%ng+ «FEET—cs =0 728=—6_Q,O€ng ("J-1" “— ._—. _. was?ka C‘ (“G7 _T' ._ z. = Ca 1 e ‘E-H-r? Ct3 — o ‘8 9521.0?) —— .‘8’7 (@104) = 0 CE —1+r.éaé - {0949:65 73 (5,;7— AL3 use MWqu SVSTEMCFBD) from; €92 7> F = o A ‘3 C9 —5c>1.b +6.3) —A-b = (9 “5—mth +14%,13—Axflr—0 The space truss shown is supported t“@ by a ball-and-socket joint at B and by short links at A and D. Determine the support reactions and the force in each member of this space truss. @éMr: O (H @ 5% D'flLlé‘nfi—fi- 800 N 0.5m) = o bgfli o \fiF __ o 87+A7+Dy= o } + A‘L—gooNzo +15°N+A‘- gowzo; 81 m +Fh— FAQ=RSSNCCU 08- ’J‘oanD _ _, ,f‘f “4/ -' “_-. F’CD- - qaaas‘w ED=°7323§N TEA/$10M ) ...
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