Show that response of an undamped SDOF System subjected to a harmonic excitation p(t) = po sin wt, w # wn is given by 1. Po 1 u(1): sin ot - sin @̟t k 1-(@/ @,)

A ФЫ В А ПРО В А П Р О Л ДЗАПРОЛДЖЭ ЯЧСМИТНЧСМИТЬБНСМИТЬБЮ SOLVE STEP BY STEP IN DIGITAL FORMAT Using the stiffness method, obtain the reactions at the supports, the shear and bending moment diagrams of the following beam: Consider that El=1 throughout the entire beam 5 T B 8 T/m с 71 D 3 T/m -2.50 m-2.50 m2.50 m2.50 m 10.00 m E ЙЦУКЕНГШУКЕНГШ ЩЗКЕНГШЩЗХъ

1. Use the force method to calculate the redundant reaction of the indeterminate beam. E is constant, I varies as shown below. (40 points – Suggested time 45 minutes) 4 k/ft 5 k 50 k.ft 10 ft 5 ft 5 ft 5 ft 21

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