One or three sides:
First, the center line of the external wall: its function can be calculated:
1, external wall volume = {(external wall centerline * external wall height)-window and door opening area} * wall thickness.
2. Concrete quantity of external wall ring beam = centerline of external wall * height of external wall ring beam * width of external wall ring beam.
Exterior wall ring beam template area = exterior wall centerline * exterior wall ring beam height *2 surfaces.
3. External wall lintel concrete volume = external wall centerline * external wall lintel height * external wall lintel width.
Exterior wall lintel template area = exterior wall centerline * exterior wall lintel height *2 surfaces.
4. The volume of foundation under external wall = the center line of external wall * the cross-sectional area of 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:
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2. Scaffolding area of external wall = external wall length * external wall height (external wall height = outdoor terrace height to house cornice height)
3, aproll area = (exterior wall line +4* aproll width) * aproll width.
4, aproll, steps, ramps are calculated according to the projected area.
Third, the net length of the interior wall: its function can be calculated:
1, interior wall volume = interior wall net length * interior wall cross-sectional area-doorway area * wall thickness (interior wall cross-sectional area = interior wall height * interior wall thickness).
2. Concrete quantity of inner wall ring beam = 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 beam template area = interior wall net length * interior wall ring beam height *2 surfaces (if it is a frame structure, beam template area = interior wall net length * interior wall ring beam height *2 surfaces+interior wall net length * Liang Kuan).
Why is the beam formwork calculation of brick-concrete structure different from that of frame structure?
Because: brick-concrete structure is to build walls first and then pour columns, beams and slabs.
Frame structure is pouring column, beam, plate, etc. Before building the wall.
3. Calculation of room decoration quantity (floor, wall and ceiling area in the room) = net length of interior wall * height of interior wall (height = floor height-thickness).
4. Building area = first floor area +2- top floor area+computer room floor area.
(Including: floor construction area of computer room, not counting the number of floors)
The first floor construction area = flat site = foundation drilling.
Site leveling: it is considered for the convenience of engineering survey and setting out.
Foundation drilling: the purpose is to check whether the foundation soil is uniform and dense.
Calculation of construction area = peripheral area of the house (if the external wall has thermal insulation, it should be calculated to the external thermal insulation peripheral line)
Five, indoor floor decoration plain soil cushion = net area of the ground * plain soil cushion thickness (plain soil cushion thickness = indoor height difference-ground cushion and surface thickness).
Six, concrete independent foundation cushion calculation:
1, concrete cushion volume = cushion bottom area * cushion thickness.
Template area of concrete cushion = (cushion length+cushion width) *2* cushion thickness.
2. The volume of independent foundation = the sum of the volumes of each step of a single foundation.
Independent foundation template area = perimeter * height of independent foundation in each step
Seven, concrete foundation beam calculation:
1, volume of concrete foundation beam = cross-sectional area of foundation beam * length of foundation beam (the outer wall is calculated according to the centerline length, and the inner wall is calculated according to the net long line).
2. Template area of concrete foundation beam = height of foundation beam *2* length of foundation (the outer wall is calculated according to the center line length, and the inner wall is calculated according to the net long line).
Eight, the calculation of large excavation earthwork:
There are two formulas for square foundation pit excavation:
v =(a+2c+KH)(b+2c+KH)h+ 1/3k2h 3
Where: A and B refer to the length and width of the foundation outer edge line.
C is the width of the working face, k is the slope coefficient (P6 and P7), h is the digging depth (calculated from the design outdoor terrace elevation to the basement height).
V =(4s+above s+ below s+ within 4s)/* h/6h refers to the depth from outdoor terrace to basement.
Where: s is the upper mouth area of foundation pit, s is the bottom area of foundation pit, and s is the middle area of foundation pit.
Circular foundation v =1/3д h (r12+R22+r1* R2)
Where: R 1 is the radius of the pit bottom and R2 is the radius of the pit top.
Nine, earthwork backfill calculation
Backfill volume v fill = V excavation-foundation volume under outdoor terrace (note: backfill earthwork volume v fill of high-rise building = V excavation-foundation volume under outdoor terrace-basement volume)
X. Roof engineering: The leveling layer (M2), slope layer (M3), insulation layer (M3), waterproof layer (M2), tile roof (M2) and vent holes (pieces) are calculated for general roof engineering.
When calculating the roof waterproofing, it must be remembered that there is flashing when there is a parapet (referring to the flanging height on the waterproofing membrane is not less than 250MM).
Waterproof area = flat area of roof+flanging area of roof (if there are overhangs, area = building area of roof+overhangs)
Cantilever area =(L +4* cornice width) * cornice width
Volume of slope layer = roof area * average thickness of slope.
Average slope thickness = 1/2 slope width * slope coefficient+thickness at the thinnest part.
Generally, one drainage gas is set every 6 meters, or two drainage gas are set symmetrically.
XI。 Roof drainage
The rainwater hopper and the rainwater outlet are calculated as one, and the rainwater pipe is calculated as the length (calculated as the vertical distance from the cornice to the outdoor floating surface). Generally, a storm sewer has a storm bucket and a storm outlet.
Twelve. Calculation of deformation joint (generally, deformation joint is divided into plane and facade, the calculation of plane deformation joint is the width of building, and the calculation of facade deformation joint is the height of building *2 faces).
Thirteen, decoration engineering quantity calculation
1. Outdoor decoration: plastering is calculated according to the external wall area-door and window area.
However, attention should be paid to (the area of the side wall of the door and window opening should be calculated when the external wall is insulated, bricklaying and dry hanging, and the area of the side wall of the door and window opening should not be calculated for other plastering and coating).
2. Calculation of indoor decoration floor: calculate the net area of the floor (calculate the engineering quantity one by one according to the practice of the floor. Generally, the cushion on the ground is calculated by volume = ground area * cushion thickness, and the ground surface layer and the first layer should be calculated as the net area of the ground). It should be noted that the calculation of waterproof layer area of toilet floor = net floor area+waterproof flanging area (the flanging height not indicated in general drawings is 150+ 120=270, where 150 refers to the height of flanging from the ground, and 120 refers to the waterproof height of concrete floor/kloc-0.
3. Calculation of ceiling and ceiling for indoor decoration: Calculate the net area of ceiling (in general, the net area of ceiling = the net area of ground). If the ceiling is a ceiling, the cost of keel and decorative plate shall be calculated.
4. Interior decoration wall surface calculation: calculate the wall surface area (the general wall surface method is plastering and scraping putty).
Fifteen, the calculation of scaffolding
If all civil buildings are completed, comprehensive scaffolding should be adopted = building area.
If there are special circumstances, the external wall scaffolding shall be calculated as = = the length of the external line of the building * the eaves height (referring to the height from the designed outdoor terrace to the dripping place of the eaves of the building, and the elevator room and water tank room protruding from the roof of the main building are not included in the eaves height).
XIV. Freight and other measures
1, vertical freight can be calculated when the cornice height of the building is more than 3.6m, and the vertical freight of the building and decoration needs to be calculated in this project. The vertical freight of buildings is calculated according to the construction area, and the vertical freight of decoration is calculated according to the working days of decoration.
2. The ultra-high cost of the building, the different cornices of the building are calculated according to the construction area of more than 20 meters.
3, large machinery in and out of the fee and disassembly fee (general building foundation engineering should consider the cost of large machinery in and out of class, tower crane, construction elevator, pile driver, roller, etc. In the construction, the demolition fee, equipment foundation fee and access fee should be calculated according to the actual situation. )
4. The second handling and completion cleaning fee shall be calculated according to the construction area.
5. General measures The project fee is calculated according to the project classification category (for the project classification, see the Construction Project Cost Quota of Inner Mongolia Autonomous Region).
Fifteen, the basis of the project fee
Fixed management fees and various project profits (civil engineering, decoration, installation, etc. ) At the rate of (labor cost+machinery cost) *.
04 Fixed civil engineering management fees and profits are charged at the rate of (direct engineering fees) *.
Management fee and profit fee of fixed decoration project are charged at the rate of (labor cost+machinery cost) *.
See the above provisions (the Inner Mongolia Autonomous Region construction project cost quota)
Sixteen, steel structure engineering
Steel structure engineering is calculated by weight t, and the weight of all steel plates = = steel plate volume * iron density.
Weight of other section steel = length of section steel * theoretical weight of section steel (see hardware manual for theoretical weight)
Seventeen, high-rise buildings
1, calculate the water stop of raft and basement shear wall according to the length.
2, high-rise underground shear wall should calculate the number of water stop bolts (generally according to the calculation written on the construction drawing of the construction site).
3, high-rise or frame structure should calculate the number of constructional columns, ring beams and lintels (according to the number of steel bars on the drawings).
Eighteen. Calculation of stair engineering quantity
The concrete and formwork of stairs are calculated according to the projected area of stairs.
Nineteen, engineering valuation methods include unit price method and bill of quantities method (the two valuation methods are different when setting prices, so practice should be strengthened).
Twenty, raft, horse stool on the floor (measures).
The reinforcement shall be calculated according to the construction organization design or construction scheme.
Twenty-two, the reinforcement in each component should be calculated according to the attached reinforcement calculation manual.
Matters needing attention in setting the price of civil engineering:
Foundation engineering: generally, it is necessary to level the site, drill holes for foundation, excavate earthwork (10% labor, 90% machinery, but pay attention to the basic price of labor *2), backfill earthwork (if the earthwork of high-rise buildings is backfilled with lime soil), and sometimes consider earthwork transportation, foundation concrete volume and foundation formwork area.
Main projects: generally, the concrete volume and formwork area of columns, beams, slabs, cantilever slabs and shear walls, the volume of infilled walls or masonry walls, the concrete area of stairs, the formwork area of stairs, reinforcement works, and reinforcement joints (welding and mechanical joints are determined according to drawings and actual construction conditions).
Decoration project: generally, the floor, ceiling, ceiling, indoor wall decoration, door and window installation and external wall decoration should be done well.
Energy-saving project: external wall insulation is calculated by area (the thickness of insulation layer considered in the quota is 50MM, and other thicknesses in the drawing need to be converted).
Roofing engineering: Generally, a roofing leveling layer should be set (for some engineering leveling layers, steel mesh pieces should be taken separately by weight). Look for slope layer, insulation layer, waterproof layer, tile roof, vent, rainwater pipe, rainwater ditch, etc. And remember to set it if someone has a hole.
Sporadic works: parapet, parapet (generally considered as parapet with thickness ≤ 100MM, and parapet with thickness ≥ 100MM), aproll, ramp, step, stair railing, window railing, air conditioning railing, deformation joint (plane and elevation), air duct, flue and cast iron hood on the roof. (The waterstop under the bathroom wall is calculated according to the concrete ring beam and ring beam template)
Measures: Generally, it includes the entrance and exit fees for large machinery, vertical transportation fees for construction projects, vertical transportation fees for decoration projects, comprehensive tripod fees, mechanical equipment installation and disassembly fees, and mechanical equipment foundation fees.
Sporadic items: secondary handling and completion cleaning fees (calculated according to the construction area), and pumping concrete for commercial concrete.
Note: 1. In underground engineering, attention should be paid to distinguish waterproof (impervious) concrete from ordinary concrete.
2. If the height exceeds 3.6m during decoration, full-house scaffolding = net area of the room should be considered.
3. Plain soil cushion (quantity = net area of ground * thickness of backfill soil) The thickness of backfill soil is the height difference between indoor and outdoor-the thickness of a layer of ground cushion.
4. All air conditioning panels and balcony panels should be regarded as cantilever panels.
5. Stair reinforcement and some sporadic reinforcement in Guanglianda software are calculated in a single component.
6, high-rise building sump and other parts of the excavation according to artificial digging.
7, in the set of floor tile or wall tile quota should pay attention to distinguish between brick quota of comprehensive cement mortar layer and 30MM thick cement mortar layer.
Please take a closer look at the description of scaffolding on page 95 of the building quota.
Although it is paste, it is well written. Let's progress together.