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The Use of AASHTO LRFD Bridge Design Specifications with Culverts

The Use of AASHTO LRFD Bridge Design Specifications with Culverts

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<strong>LRFD</strong> (C12.11.2.3)<br />

�� “While typical designs assume a uniform<br />

pressure p distribution across the bottom slab, ,<br />

a refined analysis that considers the actual<br />

soil stiffness under box sections will result<br />

in pressure distributions that reduce bottom<br />

slab shear and moment forces (McGrath ( et<br />

al. 2004.”

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