Clearly defined scope of bidding is the content of the bidding project, the scope of the unified bidding price, but also the establishment of a fair competition platform and to determine the rights and obligations of the bidder and the bidders (especially the successful bidder) basis. When describing the scope of bidding, we need to focus on the bidder may be separately contracted and have professional contracting qualification requirements of the sub-parts of the project, such as earth excavation (including earth transport outsourcing), piling works, elevators, aluminum alloy (plastic steel) windows and doors, curtain wall, secondary decoration, weak electricity and building intelligence, fire protection, fire protection equipment installation, high-voltage power supply and distribution, central air-conditioning, heat exchanger, and so on.
2, professional subcontracting works and its pricing
The tender documents need to clarify the scope of the bidding whether there is a bidder designated subcontracting (also known as separate contracting or separate contracting) of the professional works, and, if so, need to clarify its pricing in this tender.
In general, the separate contracting of professional engineering pricing method there are two kinds, one is a unified professional engineering tentative price (also known as the tentative engineering fee) into the offer, and the second is not included in the offer for the time being. Both ways must indicate the treatment of general contracting service fees for specialized works.
It should be noted that, when the bidder has been included in the bidding price of professional works in the implementation of the project is clearly to be contracted separately to the professional contractors, while the bidder in the offer of the general contracting service fee, in the bidding documents must be clarified in the contractor to provide general contracting services in the scope and depth.
3, materials, equipment supply mode and the corresponding pricing
Bidding documents need to specify the bidding scope of materials and equipment procurement and supply mode. Procurement and supply can generally be simply divided into two categories, one is all by the bidder (contractor) procurement and supply, known as B supply, the other is part of the bidder (contractor) procurement and supply, known as A supply.
In addition to clarify the procurement and supply of materials and equipment, the bidding documents also need to clarify the bidding scope of materials and equipment pricing. There are generally three pricing methods: one is a unified tentative price of materials and equipment, applicable to the A supply and B supply but must recognize the quality and price of materials and equipment; the second is completely independent of the offer, applicable to the B supply of materials and equipment, including the designated brand and other materials and equipment; the third is not counted for the time being, applicable to the A supply of materials and equipment.
It should be noted that the bidding documents need to explain the pricing of A-supplied materials and equipment storage fees.
4, utilities pricing
The traditional fixed pricing, utilities settlement shall calculate the current market price of utilities with the fixed budget price difference, list pricing mode is the bidders combined with the market independent offer and accordingly settlement, due to the
the difference between the two modes of pricing, in order to avoid disputes, the bidding documents need to be clear that utilities by the Contractor to pay to the provider according to the actual costs incurred.
5, the project prepayment agreement
The payment of project prepayment will have a certain impact on the bidder's bidding price, so the bidding documents should be clear.
According to the financial construction [2004] No. 369, "Interim Measures for the Settlement of Construction Project Prices," Article XII provides: "the advance payment of the contractual agreement to pay, in principle, the proportion of the advance payment is not less than 10% of the contract amount, not more than 30% of the contract amount, the major projects, according to the annual project plan for the yearly advance payment." Bidding documents need to be based on this provision of the prepayment ratio and payment time, at the same time, clear prepayment in the progress of the project in the time and manner of withholding back.
Another thing to note is that when the bidding price takes into account the provisional amount and determines the provisional price of the professional works separately contracted by the contractor, the calculation of the advance payment on a pro rata basis should make it clear that the basis of calculation of the contract price includes or does not include these amounts.
6, the settlement of progress payments
The settlement of progress payments is divided into two types, the first is the time (monthly, bimonthly, quarterly, etc.) settlement of progress payments, the second is the stage of the image of progress settlement of progress payments, the second needs to be clear image of the progress of the node. The amount of progress payments should be in line with Caijian [2004] No. 369, "Interim Measures for the Settlement of Construction Project Prices," Article 13, that is, "...... not less than 60% of the project price, not more than 90% of the project price to the contractor to pay progress payments."
7, engineering changes in the settlement of visa
Engineering changes in the settlement of visa will have an important impact on the settlement cost of the project, is prone to disputes, the bidding documents need to be clear. According to Caijian [2004] No. 369, "Interim Measures for Settlement of Construction Project Prices"
Article 10 states: "Change the contract price according to the following methods: (1) the contract has been applied to change the price of the project, according to the contract has been the price of the contract price change; (2) the contract is only similar to the price of the project change, you can refer to a similar price change in contract price; (3) the contract has not been applied or similar to the change of the project price; (4) the contract is not applicable or similar to the project price change. There is no price applicable to or similar to the changed works, the contractor or the contractor shall propose the appropriate change price, which shall be executed after confirmation by the other party. If the two parties cannot reach an agreement, the two parties may refer to the cost management organization of the project at the place where the project is located for consultation or according to the dispute or controversy settlement procedures agreed in the contract." Which (3) method should be further clarified as far as possible the pricing principles.
8, temporary pricing of materials and equipment, the settlement of price difference
In the process of construction of the project is required to bidding temporary pricing of materials and equipment to recognize the quality of the price, recognize the quality of the price with the original temporary pricing of the price difference settlement needs to be clearly defined in the bidding documents, there are generally two ways of settlement, a way to take the difference in the price of the overhead, profit, fees, taxes for settlement, the other way is the difference in the price of the settlement of the fee, taxes, fees, taxes. Fees, taxes for settlement, the bidding documents this clear price level can be determined according to the temporary pricing to make a choice, the price level of temporary pricing if the price level is determined by reference to the market price level, you can choose the second way, the price level of temporary pricing if the level of the market price is significantly different from the level of the price, you can choose the first way.