How is the quantity of steel structure workshop work calculated?
(A) Steel roof frame, steel mesh frame
(1) according to the size of the design drawings to calculate the weight of steel, without deducting the weight of the eyelet, cut edge, cut limb, welding rod, rivets, bolts and other weight does not increase.
(2) Irregular or polygonal steel plate, calculated by its external regular rectangular area.
(3) Steel mesh frame should be distinguished from spherical joints, steel plate joints and other forms of connection.
(4) The unit of measurement is t.
(B) Steel brackets, steel trusses
(1) Calculated by the weight of steel according to the size shown in the design drawings. The weight of eyelets, cut edges and limbs are not deducted, and the weight of welding rods, rivets and bolts are not increased.
(2) Irregular or polygonal steel plate, calculated by its external rectangular area.
(3) The unit of measurement is t.
(C) steel column, steel beam
(1)Calculated by weight of steel according to the size shown in the design drawings. Do not deduct the weight of the eye, cutting edge, cutting limb, welding rod, rivets, bolts and other weight is not increased.
Irregular or polygonal steel plate, calculated by its external rectangular area.
Specifically include solid web column, hollow web column, steel pipe column, steel beam and steel crane beam, etc. The unit of measurement is t.
(2) attached to the steel column of the bull's-leg, etc. incorporated into the steel column volume.
(3)The nodal plate, strengthening ring, lining pipe, bull leg, etc. on the steel pipe column are incorporated into the steel pipe column volume.
(4) The design provides for the setting of steel dynamic beam, steel dynamic truss, car block, the volume of work should be incorporated into the steel crane beam.
(4) Pressed steel plate floor, wall plate
Pressed steel plate floor: according to the size of the design drawings to lay the horizontal projection of the area, columns, stacks and 0.3m2 within the hole area is not deducted. The unit of measurement is m2.
Pressed steel plate wall panel: calculated by the size of the paving area as shown in the design drawings; the area of holes within 0.3m2 is not deducted, and the area of wrapping corners, edges and sill flooding is not calculated separately. The unit of measure is m2. pressed steel plate floor slab poured reinforced concrete, concrete and reinforcement according to the relevant provisions of concrete and reinforced concrete calculation.
(E) steel components
General calculation rules for steel members are as follows.
(1) according to the size of the design drawings to calculate the weight of steel. Such as steel bracing, steel purlins, steel skylight frame, steel wall frame (including columns, beams and connecting bars), steel platform, steel walkway, steel railing, steel funnel, steel brackets, scattered steel components, etc.. Not deducting the weight of eyelets, cut edges, cut limbs, welding rods, rivets, bolts, etc. The weight is not increased separately.
(2) Irregular or polygonal steel plate, calculated by its external rectangular area. The unit of measurement is t.
(F) metal mesh
Calculated in terms of area according to the size shown in the design drawings, including production, transportation, installation, painting, etc.
Steel structure plant engineering roofing and waterproofing project
(I) tile, profile roofing
Calculated in terms of sloping area according to the size shown in the design drawings. Do not deduct the area occupied by the chimney, wind cap base, air duct, small air windows, sloping gutter, etc. on the room, and the eave part of the small air windows on the roof is not increased. The unit of measurement is m2. small green tiles, linoleum tiles, cement tiles, glazed tiles, Spanish tiles, etc., can be listed by tile roofing project. Color steel corrugated tiles, color steel insulation panels, sun panels, fiberglass tiles, etc., can be listed by profile roofing.
(B) roofing waterproofing
1 coil waterproof roofing, membrane waterproof roofing
According to the size of the design drawings to calculate the area, the unit of measurement is m2. pitched roof (excluding flat roof slope) calculated by slope area; flat roof by horizontal projection area. Do not deduct the area occupied by the chimney on the room, the base of the wind cap, air ducts, small air windows on the roof and sloping gutter; the curved part of the daughter wall, expansion joints and skylights of the roof, etc., are incorporated into the calculation of the roofing volume.
Petroleum asphalt linoleum, glass cloth asphalt linoleum, glass fiber asphalt linoleum and a variety of rubber coils, PVC coils, etc., can be listed by coil roofing. Green-based waterproofing coatings, polymer modified asphalt waterproofing coatings, synthetic polymer waterproofing coatings, etc., can be listed by coating roofing. Coil waterproofing, membrane waterproofing, rigid waterproofing list items, applicable to walls, floors, floors; coil roofing additional layers, joints, headers, levelling layer inlay should be considered in the offer.
2. Rigid waterproof roofing
Calculated by area according to the size shown in the design drawings. Do not deduct the area occupied by the chimney, wind cap base, duct, etc. on the room. The unit of measurement is m2.
3, drainage pipe
Calculated by length according to the size shown in the design drawings. If the design does not mark the size, the vertical distance from the eave to the design outdoor ground is calculated. The unit of measurement is m. 4、Roof gutter
Calculated by area according to the size shown in the design drawings, and the iron and coil gutter is calculated according to the unfolded area. The unit of measurement is m2.
(C) the wall, ground waterproofing project
1 coil waterproofing, membrane waterproofing and rigid waterproofing
Calculated by the size of the design drawings to the area, the unit of measurement for m2.
(1) ground by the main wall between the headroom area calculation. Deduct the area occupied by the protruding ground structures, equipment foundations, etc., without deducting the area occupied by columns, stacks, walls, chimneys and holes within 0.3m2.
(2) Wall base: external walls are calculated by the length of the center line, and internal walls are calculated by the length of the net length line.
2. Deformation joints
Calculated by length according to the size shown in the design drawings, the unit of measurement is m.
Steel structure plant anti-corrosion, heat insulation, heat preservation project
(A) Anti-corrosion surface layer
Anticorrosive concrete surface layer, anticorrosive mortar surface layer, mastic anticorrosive surface layer, FRP anticorrosive surface layer, PVC surface layer, block material anticorrosive surface layer, etc. are calculated by area according to the size shown in the design drawings. The area occupied by structures and equipment foundations that protrude from the ground should be deducted. Protruding parts such as brick stacks of facade anti-corrosion are included in the wall anti-corrosion volume according to the unfolded area. The unit of measurement is m2.
Skirting board should be deducted from the area occupied by the doorway, and increase the area of the side wall of the doorway accordingly.
(B) Other anti-corrosion works
1. Asphalt isolation layer and anti-corrosion coating
According to the design drawings to calculate the area, the unit of measurement is m2. Deduct the area occupied by the protruding ground structures, equipment foundations, etc., and the protruding part of the anti-corrosion brick stack and so on in the facade is incorporated into the amount of wall anti-corrosion works according to the unfolded area.
2、Masonry asphalt impregnated brick