The horizontal rigid bars AB and CD in the figure are subject to vertical forces of 2kN and 1kN as shown. Ends A and D are pinned, and bar CD rests on a smooth cylindrical roller located at E. Further, ends B and C interact through a second cylindrical roller as indicated. Determine all reactions of the components. (Dimensions are in meters) 0.6 0.6- 0.6- 2 kN -1.0- 1 kN roller E

Q: Z Z Z I = Ax IM IN Ay By

A:

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Equilibrium and Support Reactions

Civil engineers deal with structures that are composed of several members connected or with individual members such as beams and columns. To analyze such structures, the condition of statics must be applied. Under the static condition, the members are considered to be in equilibrium under the action of forces, that is, the members are assumed to be having negligible velocity.