Chapter IV Masonry Works
Explain and calculate the rules of quantities.
One. Say clearly
1, the strength grade of masonry mortar in the quota is considered according to M5 mixed mortar 32.5 cement. When the actual requirements are different from the quota, it can be converted according to the base price of mortar mixture ratio.
2. For the project using commercial mortar, the mortar in the corresponding quota project can be converted, and the corresponding mixing machinery cost can be deducted, and the labor of the mortar project is multiplied by the coefficient of 0.25.
3, brick wall has considered the door window cover, window sill tiger brick, window sill line, waist line, overhanging coping within three-skin brick, pan sink and other general art forms to increase the quantity, and shall not be converted and increased when budgeting. Brick walls between frames shall be implemented according to the corresponding brick wall quota. Brick stacks, overhangs above three-skin bricks, and bread bricks on the outside of the frame shall be calculated according to the actual volume, and sporadic masonry quota shall be implemented.
4, aerated concrete block wall, pumice wall and ceramsite concrete wall, fly ash block wall, according to the provisions of the design need to be embedded in the solid brick masonry quota subtitle has been comprehensively considered, without calculation.
5, all brick walls put aside the mortar screed-coat at the floor, which has been considered within the quota of floor installation, joint filling and grouting.
6, masonry wall quota such as design part of bricklaying, except brick arch, reinforced brick lintel calculated according to the corresponding project, the rest are calculated according to sporadic masonry.
7. The materials for installing grate, oven door, furnace chamber, jointing and plastering have been comprehensively considered in the quota of stove and cooktop, and they are not converted when used, but can be calculated separately when terrazzo or plastering surface is used.
8. If the fill in the kang needs to be purchased, the soil price can be converted. The kang board in the kang board quota is considered as grass mud board, and other materials can be converted.
9, masonry circular stone masonry foundation, wall (including masonry mixed masonry, lightweight masonry) according to the quota project artificially multiplied by the coefficient 1. 1.
10, when the height of rubble slope protection exceeds 4m, the quota shall be artificially multiplied by the coefficient 1. 15.
1 1, brick arch and circular arch, 3.67 man-days will be added for each 10 cubic meter according to the brick flat arch quota.
12, if the height of the stone wall exceeds the windowsill line or 1.5m, it will increase 1 man-days every 10m3; For single-sided stacking of stone walls, 0.8 man-days shall be added for each 1m height, and double-sided stacking shall be calculated.
13, the excavation, cushion, plastering, iron ladder, fence, platform and other projects of structures shall be implemented according to other chapters.
14, brick chimney:
(1) Brick chimneys are suitable for circular and square chimneys. When processing standard half bricks and wedge-shaped half bricks, the quantity can be calculated according to12 of wedge-shaped whole brick quota.
2 chimney lining, flue bricklaying, flue lining design requirements with wedge bricks, according to the brick processing quota calculation.
(3) Chimneys and flues are lined with red (blue) bricks, and the quota is compiled according to clay mortar. If other mortars are used for masonry, the unit price of mortar can be converted, and the others remain unchanged.
(4) The circular chimney foundation shall be implemented according to the brick foundation quota, and the coefficient shall be multiplied manually by 1.2.
15, brick manhole and septic tank are compiled according to the engineering construction standard atlas DBJT02—45—2005S7. When the actual design is different from the quota, it can be calculated separately according to the corresponding projects in this chapter.
16, the inspection well is compiled according to no groundwater. In case of groundwater, the gravel grouting cushion is increased by 0.34? , the outer wall of the well 1:2.5 mortar and 5% waterproof agent plastering 6.5? .
Two. Engineering quantity calculation rules
1, brick foundation and brick wall (body) should be divided by the design indoor floor (if there is a basement, it should be divided by the basement indoor design floor), and the following is the basis, and the above is the wall (column) body. Different materials are used for the foundation and the wall body. When it is located within 300 mm of the designed indoor floor, it is bounded by different materials. When it exceeds 300 mm, it should be bounded by the designed indoor floor. Brick walls should be bounded by the designed outdoor terrace, with the following as the foundation and the above as the wall body.
2. Brick foundation and stone foundation are calculated by volume according to the dimensions shown in the design. The length of the external wall foundation is calculated according to the center line of the external wall, and the internal wall foundation is calculated according to the last step of the wall foundation. The volume occupied by the overlapping part of the T-joint of the foundation, the steel bars, iron pieces, pipes, foundation mortar moistureproof layer and a single hole with an area of less than 0.3m2 are not deducted, but the volume occupied by the ground beam (ring beam), constructional column and foundation is deducted, and the overhangs of the heating ditch against the wall are not increased. The volume of the wide part of the foundation with wall battlements should be incorporated into the basic quantities.
3. When laying round and arc brick foundations, 10m3 will increase 1.00 man-days.
4. Brick walls, hollow brick walls and stone walls are calculated by volume according to the dimensions shown in the design. Deduct the volume occupied by door and window openings, underpasses, empty rings, reinforced concrete columns, beams, ring beams, cantilever beams, lintels and niches, pipe troughs, heating troughs and fire hydrant box recessed into the wall. The volume occupied by beam head, plate head, purlin head, stow-wood, wooden head, edge wood, wooden brick, door and window head, reinforcing steel bar in brick wall, wooden bar, iron piece, steel pipe and single hole with an area of less than 0.3m2 is not deducted. The volume of waist line, cornice, coping, windowsill line, tiger head brick and door and window cover protruding from the wall surface will not increase. Brick stacks protruding from the wall surface are included in the wall volume calculation.
5. Wall length; Exterior wall according to the center line, interior wall according to the net long line; The wall between frames is calculated according to the clear distance between frames.
6, wall height:
(1) External wall: the sloping (sloping) roof without cornice ceiling is counted as the bottom of the roof panel; If there is a roof truss and there is a ceiling inside and outside, it will be added to the bottom of the lower chord of the roof truss by 200mm；; If there is no ceiling, add 300mm to the bottom of the lower chord of the roof truss, and if the width of the eaves exceeds 600mm, it will be calculated according to the actual build by laying bricks or stones height; Flat roof is calculated to the bottom of reinforced concrete slab.
(2) Interior wall: if it is located at the bottom chord of the roof truss, it is counted as the bottom chord of the roof truss; If there is no roof truss, add100 mm to the bottom of the ceiling; If there is a reinforced concrete floor interlayer, it will be counted as the bottom of the floor; When there is a frame beam, it is counted to the bottom of the frame beam.
(3) Parapet: it is calculated from the surface of roof panel to the top surface of parapet (if there is concrete coping, it is calculated to the lower surface of coping).
(4) Internal and external gables: calculated according to their average height.
5] fence: the height is calculated to the upper surface of the coping (if there is concrete coping, it is calculated to the lower surface of the coping), and the fence column is incorporated into the fence volume.
7. Brick wall thickness: calculated according to the following table:
Wall thickness 1/4 brick 1/2 brick 3/4 brick 1 brick 1.5 brick 2 brick 2.5 brick 3 brick
Calculation height (mm) 53115180 240 365 490 615 740.
8. The bucket wall shall be calculated according to the graphic size of the design and the external volume of the bucket wall. The volume of solid masonry parts at corner, junction of interior and exterior walls, vertical edges of doors and windows, windowsill bricks and eaves shall be incorporated into the volume of bucket wall. For the solid bricklaying parts between windows, under windowsills and floors, sporadic bricklaying projects will be implemented.
9. The empty flower wall shall be calculated according to the size shown in the design diagram, and the volume of the empty flower part shall not be deducted. Empty tracery wall does not include foundation, coping, brick stack solid build by laying bricks or stones, and the solid build by laying bricks or stones shall be calculated separately, and sporadic masonry quota shall be implemented.
10, the infilled wall is calculated according to the dimensions shown in the design and the external volume of the infilled wall. When the filler design and quota are different, it can be converted, and the artificial machinery remains unchanged.
1 1, brick columns and sporadic bricklaying are calculated by volume according to the dimensions shown in the design. Deduct the volume of concrete and reinforced concrete beam pad, beam head and plate head.
12. Chimneys, ventilation ducts and garbage passages attached to the wall shall be calculated by volume (excluding the volume occupied by holes) according to the dimensions shown in the design, and incorporated into the attached wall volume. When the design stipulates that plastering is needed in holes, the corresponding quota of decoration engineering should be implemented.
13, stoves, pots and pans are calculated according to the external volume, and various void volumes are not deducted.
14, the chimney on the house is calculated according to the external volume, and the volume occupied by holes is not deducted.
15, brick trench wall foundation, wall body combined calculation.
16, brick arch and reinforced brick lintel are calculated in cubic meters according to the dimensions shown in the figure. Without rules, the length of brick flat arch is 7cm wide, the height of a brick is 24cm, and that of a brick and a half is 36.5cm. Reinforced brick lintel, length according to the width of the hole plus 50cm, height (including reinforced protective mortar) calculated at 44cm.
17, the fire wall is calculated according to the vertical projection area. The heated kang is calculated in meters according to the length shown in the figure, and those with two sides against the wall are multiplied by the coefficient of 1. 15.
18. Division of stone foundation, stone plinth and stone wall body: The foundation and plinth should be bounded by the designed outdoor terrace, and the plinth and wall body should be bounded by the designed indoor terrace. When the floor elevation inside and outside the stone fence is different, the lower floor elevation shall be taken as the boundary and the following shall be taken as the basis; When the difference between internal and external elevation is a retaining wall, the wall body is above the retaining wall.
19. Schlesinger foot: calculated by volume according to the size shown in the design. Deduct the volume occupied by a single hole outside 0.3m2.
20, steps, step retaining wall, ladder belt, squatting platform, pond, pond leg, flower bed, flower pond, stair railing, balcony railing, ridge wall, brick pier under roof insulation board, hole filling within 0.3m2, etc., all carry out sporadic bricklaying projects.
2 1, the production and installation of reinforcing bars in masonry shall be subject to the corresponding quota of reinforcement engineering.
22. The quantities of stone steps should be calculated in the quantities of stone steps. The stone ladder is implemented according to the stone retaining wall project.
23. Brick chimneys are bounded by the designed outdoor floor, with the following as the foundation and the above as the barrel.
24, brick chimney volume can press type subsection calculation:
V=∑H × C × πD
Where: V represents the volume of the barrel, H represents the vertical height of each barrel, C represents the thickness of each barrel wall, and D represents the average diameter of the center line of each barrel wall.
25, brick flue and furnace body should be divided by the first gate.
26. The foundation and cushion shall be calculated in cubic meters according to the dimensions shown in the figure.
27. The barrel shall be calculated by volume by multiplying the average centerline circumference of the barrel wall by the height as shown in the design diagram. Deduct the volume occupied by various holes, lintels and ring beams. The horizontal brick connected with anti-sinking belt has been included in the quota, and it is not added.
28, brick chimney barrel has included protoplasm jointing. If the design provides for grouting and jointing, it shall be calculated separately according to the corresponding project of decoration engineering. The quantity of raw pulp jointing will not be deducted.
29, brick cylinder body needs steel reinforcement, implement the corresponding quota of steel engineering.
30. The reinforced concrete ring beam and lintel of brick chimney shall be calculated according to the real volume, and the corresponding quota of concrete and reinforced concrete engineering shall be implemented.
3 1, flue bricklaying is calculated according to the real volume, and the quantity of arch tire film has been included in the quota.
32, chimney, flue lining according to the real volume, deduct the volume of all kinds of holes.
33, chimney, flue and its lining, such as design requirements using wedge brick processing, should be calculated according to the design drawings and other items.
34. The filler is calculated according to the hollow volume between the chimney lining and the cylinder body, but the volume of anti-sinking belt is not deducted.
35, the inner surface of the chimney daub insulation layer, calculated according to the area of the inner wall of the cylinder after deducting holes.
36. The division of water tower foundation and tower body should be based on the top surface of the enlarged part of brick masonry, with the above as the tower body and the following as the basis.
37, brick tower regardless of thickness, diameter, calculated in cubic meters. Deduct the volume occupied by doors and windows openings and concrete members.
38. The external surface of the brick tower and the tank wall is comprehensively calculated by adding slurry and jointing, and jointing is carried out according to the quota regardless of adding slurry or protoplasm.
39. The septic tank of unshaped brick manhole is calculated in cubic meters according to different depths regardless of wall thickness, and the brick arch and self-closed on the hole are incorporated into the masonry volume.