Panos ENME110-Statics
Instructor: G. Charalambides
November 3, 2011
QUIZ #4
Name:
Student i.d.
The road sign structure shown in the figure below is constructed using a truss resting on two L-shape frame members AB and DC.
The truss is attached to the frame at B with a hinge and to the frame at C with a roller supports. For the applied loading shown in the figure,
(a) Determine in terms of P and L, the truss reaction forces at B and C. (30 Points)
(b) Using the of method sections, determine internal forces transmitted through members LK and FG.
Indicate whether the members are in tension or compression. (30 Points)
(c) Determine the reaction forces and moment acting at support A. (30 Points)
(d) As shown, the structure exhibits geometric and loading symmetry. Under this symmetry condition, and without solving any
additional equilibrium equations, what are the reaction forces and moment acting at support D? (10 Points)