This calculation rule is only applicable to the tender budget quotation.
Material consumption refers to the quantity of each material allocated to the unit area of the project, including the loss rate;
The significant digits in the calculation of material consumption are two decimal places, and cubic meters and tons retain three decimal places;
The materials counted in the budget usually refer to finished products (without further processing), and their quotations should include all expenses such as production, processing, packaging and transportation, warehousing and value-added tax.
When aluminum profiles, steel, aluminum-plastic plates, honeycomb aluminum plates, single-layer glass, galvanized steel plates, stainless steel plates, etc. They are all calculated according to raw materials, and the budget unit price must consider all expenses such as optimized output rate (cutting rate), various losses, packaging and transportation, warehousing and value-added tax during processing.
The utilization ratio of various raw materials when processed into finished products is as follows: aluminum 97%, steel 95%, single-layer glass 85%, aluminum-plastic plate 80%, stainless steel plate 90% and galvanized iron sheet 85%;
The normal loss rate of various materials is as follows: aluminum 6-8%, steel 6%, glass 1-3%, stone 1-2%, aluminum veneer 1-2%, aluminum-plastic board 25%, galvanized iron sheet 25%, structural adhesive 25% and weather-resistant adhesive 30.
The budget unit price of aluminum profile should consider the packaging cost and transportation cost;
Stone, glass and aluminum plate need not deduct glue joint when calculating the engineering quantity, but when calculating the unit content, stone and glass should be calculated according to their net area, and aluminum plate should be calculated according to their expanded area.
When glass, aluminum plate, stone, etc. Whether it is curved or irregular requires separate statistics and quotations.
When the aluminum profile and steel of arc curtain wall need to be bent, it should be calculated separately, plus bending processing fee.
glass curtain wall
Glass surface material: the specifications of different varieties (curved glass and other special-shaped glass are counted separately) are calculated in square meters according to the dimensions shown in the figure. There is no need to deduct glue joint for hidden frame glass curtain wall, and a part of aluminum area should be deducted for open frame glass curtain wall (usually the net size of glass is calculated according to the depth of glass tank 15MM).
Steel: in kilograms (calculate the length first and then convert it into weight). (Surface treatment can be calculated according to the developed area of other rows and columns)
Aluminum profile: including vertical keel, horizontal keel, glass frame, buckle cover, buckle seat, pressing block, connecting aluminum angle code, impact angle code, etc. First, calculate the length according to the specifications, and then multiply by their respective linear densities to calculate the weight in kilograms. (Aluminum materials with different surface treatment methods should be listed separately)
Sealant: First calculate the length of different glue joints according to the figure, and then convert it into figures to calculate (usually 500 ml sealant can be used for 16 mm width * 10 mm deep glue joint 3m, and 592 ml sealant can be used for 16 mm width * 10 mm deep glue joint 3m). It can also be calculated by the following method: glue joint width (mm)* glue joint thickness (the thickness is calculated by 10mm or half of the width) * glue joint length (m)/ volume of each glue (ml) = glue number.
Structural adhesive: First, calculate the length of glass glue injection, multiply it by the width and thickness of the glue injection layer (generally, the width is twice the thickness, and it is generally set as 16 mm wide *8 mm deep glue seam) to get the volume of structural adhesive, and then convert it into how many liters of two-component glue or how many stickers of one-component glue.
Sealing strip: according to specifications and shapes, calculate the length in meters and then calculate the weight in kilograms.
Fireproof rock wool: measured in cubic meters according to the size shown in the design.
Galvanized iron sheet, wrapped aluminum sheet, etc. : Calculated according to the size and developed area shown in the design.
Embedded parts and steel supports: Calculate their quantity and weight according to the specifications in the design drawing.
Bolts: including stainless steel bolts, chemical bolts, expansion bolts and other main connecting bolts, which are counted as sleeves.
Hardware: open the fan multi-point lock for calculation; Sliding bearings and hinges are calculated according to bearings (a bay fan includes a set of multi-point locks, two sliding bearings and two hinges, and the hook type method does not need hinges, which is calculated according to the drawing).
Lightning protection connection: calculate the number of lightning protection connectors and the length of lightning protection equalizing ring according to the design drawing.
Other materials: including double-sided adhesive tape, foam stick, textured paper, rubber pad, gasket, covered electrode, antirust paint, etc. , usually calculated according to one item, according to the empirical value, it is reported as 5~ 10 yuan/square meter.
Point glass curtain wall
Glass: the specifications of different varieties are calculated in square meters according to the size shown in the figure. The glass punching process is counted as one.
Barge joint: complete set. Divided into hollow and single glass, countersunk head and floating head.
Connecting claw: specifications are divided into sets. Commonly used four-claw, three-claw, two-claw and single-claw, made of 304# and 3 16#.
Adapter: complete set. Can be divided into adjustable and non-adjustable.
Pull rod and stay cable: the length is calculated in meters according to different specifications.
Lock head: specifications are divided into sets.
Support rod (suspension rod): According to the design drawing, items of different specifications and lengths should be listed separately.
Steel structure: Calculate the weight according to the design drawing. (Surface treatment can be calculated according to the developed area. )
Embedded parts: Calculate the number of blocks according to the specifications, and then calculate their weight.
Fireproof plugging and repair (including galvanized iron sheet, aluminum sheet, fireproof board, fireproof glass, etc.). ): Calculate the expanded area according to the design drawing.
Steel members: count by unit or sleeve, and then convert to weight.
Sealant and structural adhesive: calculate the volume of adhesive first, and then convert it into the quantity of one-component adhesive (refer to glass curtain wall).
Steel trough: the length is calculated in meters and then converted into weight.
Bolts: including through bolts, chemical bolts, expansion bolts and other main connecting bolts, according to the set.
Other materials: including foam stick, textured paper, rubber pad, gasket, covered electrode, antirust paint, etc. , usually according to a calculation, according to the empirical value reported as 5~ 10 yuan /m2.
All-glass curtain wall
Glass: the specifications of different varieties are calculated in square meters according to the size shown in the figure. Ribbed glass curtain wall is calculated separately from front glass and ribbed glass.
Clothes hanger: the quantity is calculated by single clothes hanger and double clothes hanger respectively, and one set is counted.
Steel trough: Calculate the length according to the design drawing, and then convert it into weight.
Embedded parts: Calculate the number of blocks according to the specifications, and then calculate their weight.
Steel bearing: Calculate the quantity according to the design drawing, and then convert it into weight.
Sealant and structural adhesive: calculate the volume of adhesive first, and then convert it into the quantity of one-component adhesive (refer to glass curtain wall).
Bolts: including chemical bolts, expansion bolts and other main connecting bolts, complete sets.
Other materials: including foam stick, textured paper, rubber pad, gasket, covered electrode, antirust paint, etc. , usually according to a calculation, according to the empirical value reported as 5~ 10 yuan /m2.
Double-layer breathing glass curtain wall
Classification of double-layer breathing glass curtain wall: external circulation open breathing curtain wall and internal circulation closed breathing curtain wall.
The external circulation open breathing curtain wall system includes: the outer layer is a single-layer glass curtain wall (generally, air inlet and outlet louvers are arranged at the sandwich beam of the outer layer), the inner layer is a heat insulation hollow glass curtain wall (with windows or doors for ventilation and passages for maintenance and cleaning), and there is a passage between the two curtain walls (the width of the passage is generally 400~600mm). Steel grids for human use can be laid on each channel, and a sunshade shutter or curtain is arranged on one side of the channel near the external curtain wall.
The internal circulation closed breathing curtain wall system includes: the external layer is a heat-insulating hollow glass curtain wall (totally closed without windows), and the internal layer is a single-layer glass curtain wall (usually, the bottom of the internal curtain wall is provided with an air exchange hole with a height of 10~30mm, or louvers, windows or doors are provided for ventilation, maintenance and cleaning, and the top opening is communicated with the building ventilation system to form internal circulation). There is a passage between the two curtain walls (the width of the passage is generally only 100~300mm). The inner and outer curtain walls can be assembled into a whole box, and the passage is generally inaccessible. One side of each channel close to the external curtain wall is provided with sunshade blinds or curtains.
The quantity of double-layer breathing glass curtain wall is generally calculated according to the area of the external curtain wall, and the external curtain wall, the internal curtain wall, the sunshade shutter and the passage steel grating can also be quoted separately.
When quoting by item, the following contents shall be listed according to the above two different types of breathing curtain walls: external glass curtain wall, electric louvers for air inlet and outlet, internal glass curtain wall (window), passage steel grating, sunshade louver, etc.
See (1) calculation rules of glass curtain wall for calculation rules of external glass curtain wall.
Air inlet and air outlet electric shutters
A. Aluminum profile: Calculate the length of various aluminum materials according to the specifications, and multiply it by the linear density to calculate the weight, in kilograms.
B. Insect-proof (bird-proof) net: measured in square meters according to the dimensions shown in the figure.
C, motor: calculated according to specifications and sets.
See (1) glass curtain wall calculation rules or (8) aluminum alloy doors and windows engineering calculation rules for the calculation rules of internal glass curtain wall (window).
Channel steel grating: measured in square meters according to the dimensions shown in the figure.
Sunshade louver: divided into electric control or manual control.
Aluminum shutters: calculated in square meters.
B sunshade: calculated in square meters.
C. Electronic control or manual control system: calculated according to specifications.
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