How much does it cost to design a factory? How to rationalize economic design of factory buildings

Factory buildings can be divided into single-story factory buildings and multi-story factory buildings according to the building structure. The structure of factory design has certain specifications, which are determined according to the production conditions and process flow of the factory, and the form of the factory is designed. Please see below the editor's introduction to the design costs of general factory buildings, design requirements for standard factory buildings, and the economy of structural design of standard factory buildings.

The design cost of a general factory building: generally ranging from 5 to 30 yuan per square meter.

"Basic design charges" should also be added to "other design charges", that is, "fees charged for the actual needs of engineering design or related services required by the contractor, including overall design fees, main design coordination fees, adoption Standard design and reuse design fees, non-standard equipment design document preparation fees, construction drawing budget preparation fees, as-built drawing preparation fees, etc." can become the "engineering design charging base price". For construction projects, it is the "architectural design charging base price" .

The charging standards for architectural design in my country are not low. Compared with the international common level where design fees account for 5 to 8% of the total project cost, the difference is not that big. ?Of course, the "engineering design fee base price" calculated based on the charging standards is not the actual design fee. “The engineering design charging base price is the engineering design charging base amount calculated in accordance with this charging standard. The contractor and the designer negotiate and determine the engineering design charging contract amount within the prescribed floating range based on the actual situation.” That is, in the “Engineering Design Charging Baseline” On top of the "price", some floating values ??need to be considered before it can become the actual design charge.

Standard factory building design requirements

The standard factory building is a factory building with a frame structure. It is a one- or multi-story building with a concrete structure. The load-bearing capacity of the first floor is 500 kg/square.

The requirements for standardized workshops are different in different industries, but they are unique:

1. The installation of equipment should meet the requirements, including equipment spacing and process flow. rationality, etc.

2. The width of the safety passage should be greater than 1.4 meters, the width of the main passage should be greater than 3 meters, and the width of the pedestrian passage should be greater than 0.8 meters.

3. Fire protection design must be reasonable and ensure compliance Fire safety requirements.

4. The workshop must be divided into areas, including processing areas, product storage areas, raw material storage areas, rest areas, etc.

5. Power cabinets such as power distribution and lighting must meet safety requirements.

6. Slogans, logos, operating procedures, and layout plans should be eye-catching, and there should be publicity boards.

7. Positioning management

Other requirements include reasonable planning of positioning based on product structure.

Economical design of standard factory building structure

1. Architectural form

1. Plane appearance: Under normal circumstances, the length and width of the plane shape of a multi-story standard factory building The ratio should be close to a square, so that when the building areas are equal, the floor area is the smallest, the surface area of ??the exterior wall is the smallest, and the economy is optimal.

2. House height: Generally, 3 to 5 floors are more commonly used, and this is the more economical number of floors. No matter how tall the house is or even reaches the height of a high-rise (more than 24 meters in height), different specifications will be applied in the construction industry. The increase in wind load on the structure, seismic load and the application of different structural design specifications will cause the total cost to rise significantly, thus unit The cost is uneconomical.

3. Determining the column network: Large column network and large bays have the characteristics of strong layout and strong versatility, but the price is high unit cost and poor economic efficiency. Under the same design conditions (roof load, seismic force, wind load, floor height, etc.), I deliberately compared the concrete consumption per unit area of ??a standard floor and the steel consumption of a three-story standard factory building with different column grids, and obtained the data. See the table below for details

Structure type column mesh size (mxm)? Concrete consumption

(cm/m2) Steel consumption

(kg/m2) Three layers Frame type reinforced concrete marked factory building 6x6?18.12　30.6?7x6?18.52　32?9x6　19.85　35

The design of the factory building must implement national policies to ensure economy, good quality, safety, environmental protection and energy saving. In addition, factory building design should pay special attention to the design of factory building safety to ensure the normal progress and maintenance of construction and the creation of a safe environment.

We hope that the economic introduction of the above factory building design costs, standard factory building design requirements, and standard factory building structural design can provide a reference for everyone.