For the uniform beam AB, determine the reactions at A and B. Use the least work method Α A cl C 2L/3 P L/3 B Hints: 1. The structure is 2nd order indeterminate, therefore strain energy should be expressed by two unknowns. 2. Apply Least work method at either side of fixed boundaries.

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Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.