Concrete is calculated in cubic meters in the quota.
Explanation and engineering quantity calculation rules
1. Explanation
(1 ) This chapter includes: cast-in-place concrete components, on-site production and installation of precast concrete components, joint grouting of precast concrete components, etc. 3 sections ***99 sub-items.
(2) In rubble concrete projects, conversion shall not be allowed when the content of rubble is different from the design requirements.
(3) In cast-in-place concrete column and wall projects, the amount of cement mortar poured at the bottom is integrated.
(4) The box-type foundation shall be calculated according to the relevant provisions of the full hall foundation, columns, beams and walls, and the corresponding quota sub-items shall be implemented.
(5) There is a ribbed belt-shaped foundation. When the height of the rib is within 1.5m, the engineering quantities are incorporated into the belt-shaped foundation engineering quantities, and the corresponding quota sub-items for the belt-shaped foundation are implemented; the rib height exceeds 1.5m. m, the foundation and ribs shall implement the strip foundation and wall rating sub-items respectively.
(6) When the height of the reverse beam of the beam-type full hall foundation is within 1.5m, the corresponding quota sub-item of the beam shall be implemented; when the beam height exceeds 1.5m, the engineering quantity shall be calculated separately and the corresponding quota of the wall shall be implemented subheading.
(7) Strip pile caps and independent pile caps shall implement the corresponding quota sub-items of strip foundation and independent foundation respectively.
(8) Equipment foundations (except block foundations) shall be calculated according to the relevant regulations on foundations, beams and columns, and the corresponding quota sub-items shall be implemented.
(9) Beams, slabs, columns and walls in reinforced concrete structures are calculated separately and their corresponding quota sub-items are implemented; the engineering quantities of concealed beams and concealed columns connected to the wall and incorporated into the wall , implement the quota sub-item of the wall; the decorative lines that protrude outside the wall or beam shall be incorporated into the engineering quantities of the wall or beam. For cast-in-situ concrete on profiled steel plates or formwork, the corresponding quota subheadings for the plates shall be implemented.
(10) When cast-in-place concrete balconies, rain covers, overhangs, gutters are connected to slabs (including roof panels, floor slabs) or ring beams, the outer edge of the exterior wall or ring beam shall be the dividing line. Implement corresponding quota sub-headings respectively. When the height of the vertical panels of balconies and rain covers is greater than 500mm, the vertical panels shall comply with the corresponding quota sub-item of railings.
(11) If the seam width between prefabricated panels is less than 40mm, the corresponding fixed quota sub-item for joint filling and seaming shall be implemented; the corresponding fixed quota sub-item shall be implemented for the seam width between 40 and 300 mm; the corresponding fixed quota sub-item shall be implemented for the seam width greater than 300 mm. Corresponding quota subheadings.
(12) When the height of the vertical plate of the balcony and rain cover is less than 500mm, the volume of the vertical plate shall be included in the calculation of the balcony and rain cover engineering quantities; when the height of the vertical plate exceeds 500mm, the corresponding railing shall be implemented Fixed quota subheading.
(13) On-site precast concrete components are integrated with the cost of production, installation and grouting, and shall not be calculated separately during execution.
(14) The grouting of round hole plate joints combines the materials for plugging the holes of the hollow plate and the concrete poured into the holes, and shall not be calculated separately when used.
(15) Unless otherwise specified, the cushion and foundation of structures shall comply with the corresponding quota sub-items of cushion and foundation in this chapter.
(16) The roof of the storage tank, regardless of whether it has beams or without beams, shall comply with the corresponding quota sub-items for the top plate of the storage tank; the columns of the storage tank shall comply with the corresponding quota sub-items for the middle columns of other structures, and the column caps shall not be Calculated from the engineering quantities of the slab.
(17) The support structure of the silo shall implement the corresponding quota sub-item for the water tower body bracket.
(18) Indoor pools and swimming pools should comply with the corresponding quota sub-items for building walls and floors.
(19) Chimneys and water towers shall be prepared according to slip-form construction, and corresponding quota sub-items shall be implemented according to different heights when used.
(20) Concrete is poured into the joints of prefabricated frame columns, and corresponding quota sub-items for other concrete components are implemented.
(21) For components whose items are not listed in the quota, the corresponding quota subheading for other components shall be implemented; when the volume of a single component is less than 0.1m3, the corresponding quota subheading for small components shall be implemented.
II. Calculation Rules for Engineering Volume
(1) Unless otherwise specified, the concrete engineering volume is calculated in cubic meters as shown in the diagram, without deducting the steel bars and pre-embedded components. The volume occupied by iron parts, bolts and holes within 0.3m2 in walls and plates. However, when section steel is used to replace the steel frame, 0.1m3 of concrete volume is deducted for each ton of section steel calculated based on the quota.
(2) Basic Cushion
1. The foundation cushion of the whole hall is calculated in cubic meters according to the size of the cushion diagram. The foundation is partially deepened, and the volume of the deepened part is calculated according to the size of the diagram. , incorporated into the cushion engineering quantities.
2. Strip-shaped foundation layer: The outer wall is calculated based on the center line of the cushion, and the internal wall is calculated based on the net length of the cushion multiplied by the width and thickness of the cushion in cubic meters.
3. Independent foundation and equipment foundation cushion: Both are calculated in cubic meters based on the area shown in the cushion diagram multiplied by the thickness of the cushion.
(3) Foundation
1. Full hall foundation: Calculated in cubic meters according to the dimensions shown in the figure, and the volume of the locally deepened part is incorporated into the foundation engineering quantities for calculation.
2. Strip concrete foundation: The outer wall is calculated based on the center line of the foundation, and the internal wall is calculated based on the net length of the foundation multiplied by the foundation cross-sectional area in cubic meters.
3. Independent concrete foundation: Calculated in cubic meters according to the dimensions shown in the figure, the volume occupied by the mouth of the cup should be deducted from the cup-shaped foundation. The grouting of cup-shaped foundations is calculated on a per-unit basis, and the work materials for leveling the bottom of the cup mouth are already included in the quota, and repeated calculations are not allowed.
(4) Column
1. The column is calculated in cubic meters according to the cross-sectional area multiplied by the column height as shown in the figure.
The column height is determined according to the following regulations:
(1) The height of a column with beams and slabs should be calculated from the upper surface of the column base (or the upper surface of the floor) to the upper surface of the floor above .
(2) The height of columns without beam slabs should be calculated from the upper surface of the column base (or the upper surface of the floor slab) to the lower surface of the column cap.
(3) The column height of a structural column is calculated from the upper surface of the column base or ground beam to the top surface of the column.
(4) The height of the concrete core column is calculated according to the height of the hole as shown in the diagram.
2. The volume of the structural column and the embedded part of the brick wall is incorporated into the volume of the column for calculation.
3. The corbels attached to the columns shall be calculated in cubic meters according to the dimensions shown in the figure and incorporated into the column engineering quantities.
4. The column cap is calculated in cubic meters according to the dimensions shown in the figure and is incorporated into the engineering quantities of the slab.
5. Prefabricated frame column joints are calculated in cubic meters according to the dimensions shown in the figure.
(5) Beam
1. Calculate in cubic meters by multiplying the cross-sectional area by the beam length as shown in the figure.
The beam length is determined according to the following regulations:
(1) When the beam is connected to the column, the beam length is calculated to the side of the column.
(2) When the main beam is connected to the secondary beam, the length of the secondary beam is calculated to the side of the main beam.
(3) When the beam is at the border with the wall, the length of the beam is calculated to the side of the wall. If the wall is a block (brick) wall, the volume of the beam heads and beam pads extending into the wall shall be incorporated into the beam engineering quantities.
(4) The length of the ring beam is calculated based on the center line of the exterior wall and the net length line of the interior wall.
(5) The lintel is calculated according to the dimensions shown in the figure.
2. Ring beams replace lintels, and the volume of the lintels is incorporated into the ring beam engineering quantities.
3. The volume of the secondary pouring part of the composite beam is calculated according to the design diagram.
(6) Board
1. Calculated in cubic meters based on the area shown in the figure multiplied by the thickness of the board, without deducting the cost of lightweight partition walls, stacks, columns and holes within 0.3m2 occupied volume.
The illustrated area of ??the plate is determined according to the following regulations:
(1) The plate with beams is calculated according to the net size between the beams.
(2) Beamless slabs are calculated based on the horizontal projected area of ??the outer edge of the slab.
(3) Slabs are calculated based on the net area between the main walls.
(4) When the board is connected to the ring beam, it is calculated to the side of the ring beam; when the board is connected to the brick wall, the volume of the board head extending into the wall is included in the board engineering quantity.
2. The inclined plate is calculated in cubic meters according to the dimensions shown in the figure.
3. For laminated plates, the plates and ribs (plate seams) are combined and calculated according to the dimensions shown in the figure.
4. The patching board is calculated in cubic meters based on the length of the prefabricated board multiplied by the width of the board seam and then multiplied by the board thickness. The volume of the splayed corner part of the edge of the prefabricated board is not calculated separately.
5. Hyperbolic thin shell: including hyperbolic vault and beams attached to the edge, transverse partitions, and transverse arch beams are calculated in cubic meters according to the dimensions shown in the figure.
6. The cast-in-place concrete on the profiled steel plate should be calculated from the surface of the profiled steel plate to the epithelium of the cast-in-place plate. The concrete volume in the recessed part of the profiled steel plate should be incorporated into the plate engineering quantities.
(7) Walls
Exterior walls are calculated based on the center line and internal walls based on the net length multiplied by the wall height and thickness in cubic meters, and the periphery of door and window frames and holes beyond 0.3m2 are deducted. The occupied volume, wall stacks and decorative lines protruding from the wall are incorporated into the wall engineering quantities.
The height of the wall is determined according to the following regulations:
(1) When the wall is connected to the slab, the height of the wall is calculated from the foundation (foundation beam) or the upper surface of the floor to the upper floor. surface.
(2) When a wall is connected to a beam, the height of the wall is calculated to the bottom of the beam.
(3) The parapet wall is calculated from the upper surface of the roof panel to the surface of the parapet wall. The volume of the top pressure, waistline and decorative line of the parapet wall are incorporated into the wall engineering quantities.
(8) Others
1. The overall staircase includes a rest platform, platform beams, inclined beams and connecting beams of the stairs. It is calculated in square meters based on the horizontal projected area, without deducting the width less than For the 500mm stairwell, the part extending into the wall does not need to be increased.
2. Balconies and rain covers are calculated in cubic meters according to the dimensions shown in the figure.
3. The size of the bleacher board is calculated in cubic meters according to the size shown in the figure, and the beams of the bleacher board are incorporated into the calculation of the grandstand board engineering quantities.
4. The fence is calculated in cubic meters based on the length multiplied by the height and thickness as shown in the figure.
5. Prestressed concrete components are calculated in cubic meters according to the dimensions shown in the figure, without deducting the volume occupied by the holes for channel grouting.
6. Unless otherwise specified, the joint filling of prefabricated components shall be calculated based on the volume of the prefabricated components.
(9) Structures
Unless otherwise specified, the concrete of structures shall be calculated in cubic meters according to the dimensions shown in the diagram, deducting the volume occupied by holes above 0.3m2.
1. Chimney
(1) The chimney body is calculated from the upper surface of the chimney base, and is calculated in cubic meters according to the different thickness sections as shown in the figure. The volume of the corbels is incorporated into The construction of the chimney body is under construction.
Chimney segmented volume calculation formula:
V=π×(lower opening inner diameter + wall thickness + upper opening inner diameter + wall thickness)/2×height (slope height)×minutes Section thickness
2. Water tower
(1) The water tower and the water tower body are calculated in cubic meters according to the dimensions shown in the figure, and the corresponding quota sub-items are implemented.
(2) The height of the cylindrical water tower is calculated from the upper surface of the foundation to the lower surface of the water tower. The beams, stacks, overhangs and other volumes attached to the cylinder are incorporated into the engineering quantities of the cylinder.
(3) Column type (frame type) water tower body is not divided into columns, beams, straight columns, and inclined columns, all of which are calculated in cubic meters according to the dimensions shown in the figure.
(4) The inner and outer walls of the water tank, the top of the water tower, and the bottom of the water tank, regardless of form, are calculated in cubic meters according to the dimensions shown in the figure, and the water tower quota sub-item is implemented.
3. Water (oil) storage pool
(1) The bottom of the pool, regardless of flat bottom, slope bottom or cone bottom, is calculated as the bottom of the pool, and the tank connected to the bottom is merged into the pool Within the bottom engineering volume, the bottom of the pool includes the expanded part of the lower part of the pool wall.
(2) The height of the wall base beam is from the bottom of the beam to the bottom of the lower part of the pool wall. If it is connected to a tapered bottom, it should be calculated to the bottom of the beam.
(3) The height of the pool wall does not include the expanded portion above and below the pool wall. If there is no expanded portion, it is calculated from the upper surface of the pool bottom to the upper surface of the pool cover.
(4) The pool cover, regardless of whether it has beams or without beams, is calculated in cubic meters according to the dimensions shown in the figure, and the sub-item of fixed quota for the middle plate of the storage tank is implemented.
(5) The column height of the pool cover column should be calculated from the upper surface of the pool bottom to the lower surface of the pool cover, including the volume of the column base and column cap.
4. Storage silo and funnel
The top plate, bottom plate, and vertical walls are all calculated in cubic meters according to the dimensions shown in the diagram.