Question

FUNDAMENTAL PROBLEMS 1-Trusses are shown in figures below .Use Virtual Work Principles to determine the magnitude and direction of the resultant deflection at joint C.

Answer 1

/ 4 40 50 40 k X x 3h 3m 3m 34 » He can calculate reactions from symmetry Rez 40+40+50 - z 65 KN

Yas دوا کی کہ ا ل ۵.

9193/1 91.92 35:35 ASO 491.92 165 35.35 A 4 90 To go to D 65 Member PKB ' 32.5 АВ ماما BC بما 90 90 32.5 СР DE بيا | نما | ما 32.5 -65 FG GH АР - 0.5 -0.5 32.5 -65 -91192 لي (S 25 ليا - 35.35 32.5 لا L 65 0.5 50 5UAI 50 لا لا لا -35.35 25 G - 65 32.5 НЕ -91.92 لو 65 {605 From virtual work principle. the = { pke 605x3, 1815 z - units. kn.kr. he | AEAE C he? .KN/ direction a downward