The contents of the bill of quantities reflect the engineering projects, engineering contents and corresponding engineering quantities that the tenderer requires the bidders to complete; It provides an important basis for the measurement, payment and settlement of future projects. Whether the bill of quantities is compiled accurately or not is entirely borne by the owner, and the contents of the bill completely constitute the contract content. Disputes over the contents of the bill have risen to economic contract disputes. Therefore, the "Valuation Code" stipulates that the bill of quantities should be prepared by the owner who has the ability to prepare bidding documents or an intermediary agency with corresponding qualifications. "Intermediary agency with corresponding qualifications" refers to an intermediary agency with the qualification of engineering cost consulting agency and undertaking engineering cost consulting business according to the prescribed business scope.
Compilation basis of bill of quantities
Relevant contents specified in the tender documents; Design documents (design drawings, standard atlas);
The situation of the construction site;
Code for valuation of bill of quantities of construction projects in Shaanxi Province;
(a) the tender documents and bill of quantities
1, the contents of the tender documents
The tender documents shall include the technical requirements and bid quotation requirements of the project subject to tender. The tender documents are the guide for the tenderer to compile the list, the bidder to participate in the bidding activities and make the bid quotation. Bidding documents generally include the pre-schedule, instructions to bidders, general terms and conditions of the contract, special terms and conditions of the contract, technical specifications, drawings, bid evaluation and calibration methods, bill of quantities and necessary schedules, such as various letters of guarantee or letter of guarantee formats. It can be summarized into two points: one is the regulations that bidders need to understand and abide by when bidding, and the other is the documents that bidders need to provide.
2, the relationship between the bill of quantities and the tender documents:
The bill of quantities is an integral part of the tender documents. The tender documents shall include the technical requirements and bid quotation requirements of the project subject to tender; The bill of quantities reflects the engineering projects and corresponding quantities required by the tenderee, and comprehensively reflects the requirements of bidding quotation, which is the basis for bidders to make quotations, so the bill of quantities is an inseparable part of the bidding documents.
The relationship between the bill of quantities and other parts of the tender documents: the bill of quantities is integrated with all parts of the tender documents, and the most closely related to the bill of quantities in the tender documents are the contract scope, general terms and conditions of the contract, special terms and conditions, etc.
3, the relationship between the claim and the tender documents:
Claims may occur in all stages of engineering construction, especially in the general construction stage. However, the seeds of the claim were not produced in the contract performance bank, but planted in the tender document, which triggered the claim.
When compiling the tender documents and bill of quantities, the compilers should have good foresight on the claim events, minimize the possibility of claim, and focus on improving the project scope, bill of quantities and measurement instructions.
As a contractor, he will read the tender documents carefully, analyze the possibility of claim, and determine the quotation strategy to pave the way for claim. Therefore, the personnel who prepare the tender documents, especially the list, must have rich experience in construction site management, be high-level cost personnel and have a good understanding of economic contracts.
(2) Design documents (construction drawing)
Construction drawing is the language of engineers and the most fundamental basis for the compilation of bill of quantities. In particular, the description of engineering characteristics and contents and the calculation of engineering quantities in the compilation of bill of quantities are inseparable from construction drawings.
Civil engineering construction drawings are generally divided into architectural construction drawings and structural construction drawings, and professional drawings are divided into foundation drawings and detailed drawings. The basic drawing represents the whole content, and the detailed drawing represents the detailed size and material composition of some parts or parts.
Building construction drawing (construction for short) mainly indicates the general layout, external modeling, internal layout, detailed structure, decoration and construction requirements of the building. Basic drawings include general plan, plan, elevation and section. Detailed drawings include walls, stairs, doors and windows, bathrooms, kitchens, eaves and various decorative and structural details.
Structural construction drawing (hereinafter referred to as construction) mainly indicates the layout, component types, structure and practices of load-bearing structures. The foundation drawing includes the structural arrangement of foundation, column network, floor slab and roof. Detailed drawings include columns, walls, floors, stairs, awnings, etc.
The bill of quantities provided by the tenderer to the bidder is compiled according to the design drawings. Without the blue prints.the design, problems will inevitably occur, which is one of the reasons for the design change and list adjustment, so we must be careful when compiling the bill.
Third, the bill of quantities preparation program
Familiar with drawings and bidding documents
Understand the relevant situation of the construction site.
Determination of project division, project name and partial list code (main project)
Determine the project content to be integrated into the partial itemized list project.
Calculate the quantities of main projects in partial list.
Prepare list (partial bill of quantities, list of measures and projects, list of other projects)
Review and write general instructions
Binding (see standard format
Four, the bill of quantities standard format
The bill of quantities shall be in a unified format (official document).
The format of bill of quantities includes the following contents:
front cover
Instructions for filling in the form
General specification
Partial bill of quantities
List of measures and projects
List of other items
List of sporadic work items
List of main materials and equipment (materials and equipment provided by Party A)
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd