quiz 4 - Surname Name MIDDLE EAST TECHNICAL UNIVERSITY...

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Unformatted text preview: IIIIIIHIIEIIIIIIIIIIIIIIIIII Surname, Name MIDDLE EAST TECHNICAL UNIVERSITY DEPARTMENT OF CIVIL ENGINEERING CE 221 - ENGINEERING MECHANICS I— STA TICS QUIZ 4, April 30, 2004 1. Determine the force in members CD and CM of the bridge truss and state if the members are in tension or compression. Also, indicate all zero-force members. 1g“, :rCC. MM’DUS‘. 3N~CN‘co— bo-EL‘ 63—HI M . \ " " (6“r //F "T ~ a- Sec/“0'1 Q a“ / ) ZHM=O F“ “‘0" 5169-6 (LA'O in" AQFQ Fa: 5'65““ (T) M T i " 3.526%! '2‘“ CE 221 Quiz 4, April 30, 2004 Page 1 of 2 2. Determine the horizontal and vertical components of reaction at A and B. The pin at C is fixed to member AE and fits- through a smooth slot in member BD. \ $6b of BOB ~ [20 N «xi/r 8% #Y/ ‘20 J 93 isoN 2am, - Ax *13LfX%—rlko so _. Axr 320.4 N w 23:” - , A, 4...! 1—) I80 N N - - 2.31.. at}; H2090 —-> ’32 #:2- 1 MON 2:6-0, A3 § *3 2M; =0 , "* -?‘i’. CE 221 Quiz 4, April 30, 2004 Page 2 of 2 (0,9) H93 (9.33 =o .. Md -Sl.iz NM ...
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