GB 50500-2013 第6.2.5条
| **** | **Risk cost**: Bidders should allow for a certain proportion of risk cost in the comprehensive unit rate, taking into account the hotel project duration (typically long, e.g., 18–24 months) and market price fluctuations (e.g., material price fluctuation risk, generally recommended to be estimated at 5%–10% of material cost). If the tender documents specify the risk range (e.g., within ±5% borne by the bidder), the agreed provisions shall apply. |