What is the basis of chapter 2.4.1 reduction of dead load to 0.6? Some theories are to provide SF against theoretical DL to actual as-built...also to insure overturning SF of 1.5 is met. However, would this combination be needed in a case where DL is well defined and overturning is taken by tenion piling? The piling will have its own SF on failure so is the 1.5 from this load case in addition, therefore, the SF on the piling with 0.6D reduction could be reduced?
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