On the third side, the overall planning method is applied to the preparation of project budget and the calculation of partial quantities. Practice has proved that the calculation of engineering quantity is the main contradiction in the compilation of engineering budget. In the whole process of engineering quantity calculation, after analyzing the * * * and individual relationships among various sub-projects, it can be considered that the "quantity" of a series of sub-projects is directly or indirectly related to the "line" and "surface" of the building shape respectively.
Calculation method:
First, the center line of the external wall: its function can be calculated:
1, volume of external wall = {(centerline of external wall * height of external wall)-opening area of doors and windows} * thickness of wall.
2. Concrete volume of ring beam on external wall = centerline of external wall * height of external wall ring beam * width of external wall ring beam.
Template area of ring beam on external wall = centerline of external wall * height of external wall ring beam *2 faces.
3. Volume of lintel concrete on external wall = centerline of external wall * height of external wall lintel * width of external wall lintel.
Template area of outer wall lintel = centerline of outer wall * height of outer wall lintel *2 faces.
4. The foundation volume under the external wall = the center line of the external wall * the cross-sectional area of the foundation (for concrete members, the volume and formwork area should be calculated).
Second, the outer edge of the external wall: its role can be calculated:
1, quantity of exterior wall decoration: = (exterior wall length * exterior wall height)-area of door and window openings (for example, when exterior wall decoration is wall sticking and thermal insulation, the area of exterior wall plus the side wall area of the opening, other exterior decoration needs not be considered).
2. Scaffolding area of external wall = external wall length * external wall height (external wall height = outdoor floor height to the cornice height of the house).
3, aproll area = (outer wall line +4* aproll width) * aproll width.
4, aproll, steps and ramps are all calculated according to the projected area.
Third, the net length of the interior wall: its function can be calculated:
1, volume of interior wall = net length of interior wall * cross-sectional area of interior wall-area of door opening * thickness of wall (cross-sectional area of interior wall = height of interior wall * thickness of interior wall).
2. Volume of concrete for inner wall ring and lintel = net length of inner wall * cross-sectional area of inner wall ring beam (cross-sectional area of inner wall ring beam = height of inner wall ring beam * thickness of inner wall ring beam).
Interior wall ring and lintel formwork area = interior wall net length * interior wall ring beam height *2 faces (if it is a frame structure, beam formwork area = interior wall net length * interior wall ring beam height *2 faces+interior wall net length * beam width).