Question

Draw the shea moment dearamo show ALL Clchtions 3- cigfanng-
lo K
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Answer #1

lok 11 ADue to symmetry, VA = VB = 10/2

VA = VB = 5 k

For iny sum H = 0;

HA = 0

Shear forces:

Sign Convention

Upward ightarrow Positive

Downward ightarrow Negative

At Support 'A'

VA = 5 k

At middle of beam (At 'C')

VC = VA

VC = 5 k (Just left)

VC = 5 - 10

VC = -5 k (Just right)

VB = -5+5 = 0

Bending Moments:

Sign Convention;

Clockwise ightarrow Positive

Anticlockwise ightarrow Negative

MA = MB = 0

MC = VB x 11

MC = 5 x 11

MC = 55 k-ft

SFD & BMD:

lo k ラ. r B t1 Pt SK V Sk S K Sk SSK-24

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