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Unformatted text preview: becomes m Ri Design R P Ï† = (532) Equation 532 gives the design capacity of a shaft for a specific site. If the bias Î» Ri is replaced by the bias factor Î» R , (which represents the average of the bias), then the design capacity is directly related to measured resistance (i.e. Davisson's capacity) and the LRFD fitting parameters Ï† , and Î» . The Ï†/Î» R ratio then represent the percentage of Davisson capacity is allowed for design for a given probability of failure. Obviously the higher the ratio fewer piles required and the better the method....
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 Spring '11
 Hass
 Ratio, Trigraph, design capacity, Davisson

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