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1.2-3 Segments AB and BCD of beam ABCD are pin con- nected at x- Thebeam is supported by a pin support at A and roller supports at C and D: the roller at D is rotated by 30° from the x axis (see figure). A trapezoidal dis- tributed load on BC varies in intensity fromat B to at C. A concentrated moment is applied at joint A, inclined load is applied at the mid-span of CD and a (a) Find reactions at supports A. C, and D (b) Find the resultant force in the pin connection at B. (c) Repeat parts (a) and (b) if a rotational spring is added at A and the roller at C is NO removed. Soft-Ib/ PROB. 1.2-3

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