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5003 Lectures - Faculty of Engineering and Applied Science

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E<strong>5003</strong> - Ship Structures I 180<br />

© C.G. Daley<br />

Example 2: Shear Flow in a simple box-girder.<br />

Consider the simple box girder with the<br />

dimensions as show below. This is like a simple<br />

barge without the frames. The overall vertical<br />

shear Q is 20 MN. To find the pattern <strong>of</strong> shear<br />

flow <strong>and</strong> then the shear stresses we first calculate<br />

the location <strong>of</strong> the neutral axis, <strong>and</strong> I.<br />

g <strong>and</strong> h are the distances from the deck <strong>and</strong><br />

bottom to the neutral axis;<br />

ℎ =<br />

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