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    Static Engineering - Beam Question

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    I am completing a work pack as preparation for an exam coming up. The questions have moved onto beams and the question is very dissimilar to the examples I've been given and I am having trouble progressing, and unsure of any answers I produce. The question is separated into 5 parts.

    I have linked the question in the picture below.

    http://farm6.staticflickr.com/5486/12302826523_75bdcecabe_c.jpg

    Any help would be greatly appreciated. Thanks

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    https://brainmass.com/engineering/structural-engineering/static-engineering-beam-question-571425

    Solution Preview

    Length of the beam, L = 2+1+5+2 = 10 m

    (a)
    Force equation:
    R1 + R2 = 5*10 + 10 + 20
    => R1 + R2 = 80 ...(1)

    Moment of forces about R1 (anti-clockwise +ve):
    R2*6 - 20*(1+5+2) - 5*(1+5+2)*(1+5+2)/2 - 10*1 + 5*2*2/2= 0
    => R2*6 = 320
    => R2 = 320/6 = 160/3 kN = 53.33 kN --Answer

    Hence, from Equation (1):
    R1 = 80 - 160/3 = 80/3 = 26.67 kN --Answer

    (b)
    From left end:
    x = 0 to x = 2m (left side), shear force,
    F = -5*x
    At x = 0, F = 0
    at x = 2m, F = -10 kN

    x = 2 (right) to x = (2+1) = 3m (left):
    F = ...

    Solution Summary

    A beam problem, describing shear force and bending moment estimation at different points corresponding to U.d.l. and point loads.

    $2.19