2. What is the building density? A: The building density is the ratio of the base area to the total land area of the project. Expressed as a percentage. High building density means that the houses in the land are "full" and vice versa.
3. What is the greening rate (green rate)? A: The green rate is the proportion of the total green area of the project to the total land area. Generally expressed as a percentage.
4. What is the sunshine interval? Answer: The sunshine distance is the distance between the front and rear buildings according to the sunshine time requirements. The calculation of sunshine spacing is generally based on the height of the wall above the window sill at the bottom of the house at noon from winter to Sunday.
5. What is the difference between architecture and structure? A: All houses or places where people can produce, live or engage in other activities are called buildings, such as apartments, factories and schools. Buildings that people do not produce or live in are called structures, such as chimneys, water towers and bridges.
6. What are the "three major materials" of architecture? A: The "three major materials" of architecture refer to steel, cement and wood.
7. What are the three parts of the construction and installation cost?
Answer: The cost of construction and installation consists of three parts: labor cost, material cost and machinery cost.
8. What is a unified modular system? What are basic modulus, extended modulus and fractional modulus? (1) The so-called unified modular system is a set of basic rules formulated to realize the standardization of design, so that the dimensions of different buildings and divisions can be unified and coordinated, making them universal and interchangeable, thus speeding up the design, improving the construction efficiency and reducing the cost.
(2) The basic modulus is the basic size unit selected in the modulus coordinates, and m means1m =1000 mm..
(3) The expansion modulus is a derivative modulus, and its value is a multiple of the basic modulus. There are six kinds of expanding dies, namely 3M(3000mm), 6M(6000mm), 12M( 12000mm), 15M( 15000mm), 30M(30000mm) and 6000. The larger dimensions in a building, such as width, depth, span and column spacing, should be multiples of a certain expansion coefficient.
(4) Fractional modulus is another derived modulus, and its value is a fractional multiple of the basic modulus. There are three sub-modules, namely110m (100mm), 1/5M(200mm) and 1/2M (500mm). Smaller dimensions in a building, such as cracks, wall thickness, structural joints, etc. , which should be a multiple of a certain modulus.
9. What are the mark size, structural size and actual size? (1) Mark size is used to mark the distance (width and depth) between building positioning axes and the size between the position boundaries of building products, building components and related equipment. The marking size shall conform to the provisions of the modular system.
(2) Structural dimensions are the design dimensions of building products and building components. The structural size is less than or greater than the sign size. Generally speaking, the structural size plus the reserved gap size or minus the necessary support size is equal to the sign size.
(3) Actual dimensions refer to the actual dimensions of building products and building components. The difference between the actual size and the structural size shall be the allowable building tolerance value.
10, what is the positioning axis? Answer: Positioning axis is a line used to determine the position and sign size of the main structure or component of a building.
1 1, what is horizontal and vertical? What are the horizontal and vertical axes?
(1) level refers to the width direction of the building.
(2) The longitudinal direction refers to the length direction of the building.
(3) The axis set along the building width direction is called the transverse axis. Its numbering method is to use Arabic numerals to write in the shaft circle from left to right.
(4) The axis along the length of the building is called the longitudinal axis. The numbering method is to write in the shaft circle with capital letters from top to bottom (the letters I, O and Z are not used).
12. What is the width and depth of the house? A: A studio refers to the width of the house and the distance between the two horizontal axes; Depth refers to the depth of the house and the distance between the two longitudinal axes.
13. What is the height of the story? What is clear height? Answer: The height of a building refers to the height of the building, from this floor or ground to the next floor or ground; Clear height refers to the clear height of the room and the height from the ground to the lower skin of the ceiling.
14, what is the total height of the building? Answer: The total height of the building refers to the total height from the outdoor terrace to the top of the cornice.
What's the altitude? What are absolute elevation and relative elevation? (1) The elevation difference between a certain part of a building and a certain water reference point is called the elevation of that part.
(2) Absolute altitude is also called altitude. In China, the average sea level of the Yellow Sea near Qingdao is set as the zero point of absolute elevation, and the elevations all over the country are based on this.
(3) Relative elevation means that the ground of the main indoor room on the first floor of the building is zero (0.00), indicating the height of a place from the ground on the first floor.
16. What is the building area, usable area and utilization rate? What are traffic area and structural area? (1) The building area refers to the product of the length and width of the building multiplied by the number of floors. It consists of usable area, traffic area and structural area.
(2) The usable area refers to the net area of the main building and the auxiliary building (the net area is the product of the net size obtained by subtracting the wall thickness from the axis size).
(3) Utilization rate, also known as occupancy rate, refers to the percentage of usable area in the construction area.
(4) Traffic area refers to the net area of traffic facilities such as walkways, staircases and elevators.
(5) Structural area refers to the area occupied by walls and columns.
17, what is the red line? A: The red line refers to the construction area granted by the planning department to the construction unit. Generally, it is circled on the drawing with a red pen, which has legal effect.
18, how to classify buildings? Answer: The grades of buildings are classified according to the durability grade (service life) and the fire resistance grade (fire resistance life).
(1) is divided into four grades according to the durability grade: the first grade, the durability exceeds 100 years; Grade ii, durability of 50~ 100 years; Grade III, with durability of 25-50 years; Grade 4, with durability below 15 years.
(2) According to the fire resistance rating, it is divided into four levels: from the first level to the fourth level, the fire resistance limit of the building gradually decreases.
19, what is a brick-concrete structure? Answer: The vertical load-bearing components of the building are brick walls or brick columns, and the horizontal load-bearing components are reinforced concrete floors and roof slabs. This structure is called brick-concrete structure.
20. What is a frame structure? Answer: Frame structure refers to the skeleton composed of columns, longitudinal beams, beams and floors as load-bearing joints.
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Structure, the wall is a retaining structure.
2 1, what is a shear wall? Answer: Shear wall refers to the wall added to the frame structure to resist horizontal shear force. Because the horizontal shear force to be resisted by high-rise buildings is mainly caused by earthquakes, shear walls are also called seismic walls.
22, what is the shear wall structure? A: Shear wall structure means that the vertical load is shared by the frame and shear wall; The horizontal load is borne by the frame 20%~30% and the shear wall 70%~80%. The length of shear wall is designed according to the standard of 50mm per square meter of the building.
23. What is a full shear wall structure? Answer: The full shear wall structure is a structure that uses the inner wall (or outer wall) of the building as the load-bearing skeleton to bear the vertical load and horizontal load of the building.
24. What is the cylinder structure? Answer: The tube structure evolved from the frame-shear wall structure and the full shear wall structure. Tube structure is a closed space tube formed by concentrating shear wall or dense column frame into the interior and periphery of the house. It is characterized by concentrated shear walls and large space for free division, which are mostly used in office buildings.
25. What is a steel structure? A: Steel structure refers to the structure in which the main load-bearing members of a building are made of steel. It has the characteristics of light weight, high strength, good ductility, fast construction speed and good seismic performance. Steel structure is mostly used in super high-rise buildings, and the cost is high.
26. What are the advantages and disadvantages of frame structure compared with brick-concrete structure?
Advantages:
(1) light weight: the weight of brick-concrete structure is1500kg/m2; If the frame structure adopts lightweight board (aerated concrete partition, light steel keel partition, etc.). ), its weight is 400 kg ~600 kg/m2, which is only 1/3 of the brick-concrete structure.
(2) Flexible room layout: The load-bearing structure of the frame structure is the frame itself, and the wallboard only plays the role of enclosure and separation, so the layout is more flexible.
(3) Increase the effective area: the wall of the frame structure is thinner than that of the brick-concrete structure, which relatively increases the usable area of the house.
Disadvantages:
(1) steel consumption is about 30% higher than that of brick-concrete structure, and its cost is higher than that of brick-concrete structure.
(2) The section size of some columns is too large, which will protrude from the wall and affect the appearance.
27. What's the difference between foundation and foundation? (1) Foundation is the soil layer below the foundation, and its function is to bear all the loads from the foundation.
(2) The foundation is a load-bearing component of a buried building and an important part of the building. Its function is to bear all the loads handed down by the building and transfer these loads to the soil layer below together with its own weight.
28. What is the buried depth of the foundation? What are deep foundation and shallow foundation? (1) The buried depth of foundation refers to the vertical distance from the outdoor design terrace to the bottom of foundation.
(2) The foundation buried more than 5 meters is called deep foundation; The foundation with a buried depth of 0.5m ~ 5m is called shallow foundation. The buried depth of foundation shall not be less than 0.5m ..
29, the foundation of the building can be classified according to which three different methods? (1) According to the materials used, it can be divided into brick foundation, rubble foundation, concrete foundation and reinforced concrete foundation.
(2) According to the structural form, it can be divided into independent foundation, strip foundation, well pattern foundation, plate foundation, mat foundation, box foundation and pile foundation.
(3) According to the mechanical properties of the materials used, it can be divided into rigid foundation and flexible foundation.
30. What is a moistureproof layer? Answer: In order to prevent underground moisture from rising along the wall and surface water from eroding the wall, waterproof materials are used to separate the lower wall from the upper wall. This barrier is the moistureproof layer. The position of the moistureproof layer is generally 60mm~70mm below the first floor indoor floor (0.00), and the elevation is-0.06 m ~-0.07 m.
3 1, what is a foot? What is kicking? What are their functions? (1) The lower part of the external wall near the outdoor terrace is called toe binding. The role of constraint feet is to prevent the erosion of groundwater and rainwater dripping from eaves, thus protecting the wall surface, ensuring indoor dryness and improving the durability of buildings. The height of column foundation is generally the height difference between indoor ground and outdoor ground.
(2) Kicking is the structure that the inner side of the outer wall and both sides of the inner wall are connected with the indoor ground. The function of kicking the foot is to prevent the wall from being polluted when sweeping the floor. The kick height is generally 120mm~ 150mm.
32. What is aproll? What is an open ditch? What is its function? Answer: aproll is a drainage slope near the lower part of Lejiao; Open ditch is a drainage ditch set near the foot of the tap. Their function is to quickly drain the rainwater dripping from the eaves and prevent the building from sinking due to the infiltration of accumulated water into the foundation.
33. What is a haircut? A: It's a dent in the surface of the completed concrete structure. Function: make the construction surface of two construction stages firmly bonded. Usually in the cast-in-place structure, after the cast-in-place slab is poured, it is necessary to cut hair and then pour a column wall. Let the concrete stick together firmly.
34. What is a nap? Answer: After the cement mortar is painted on the wall, the cement mortar is painted into a shape a bit like the tip of an ice cream with tools such as a brush, which is used to prevent the wall from being too smooth and producing an orderly reflection of sound and light, and is mostly used for the external walls of public places.
35. What is hair? Answer: Shaving, also called hair spraying, is to spray small sand cement mortar with adhesive on the structural level with a special sprayer, so that the paint layer and the structural layer are firmly bonded and the paint layer will not be empty.
36. What is stirrup? Answer: it is used to meet the shear strength of inclined section, and even accept the main reinforcement and concrete in the compression area to make them work together. In addition, it is used to fix the position of the main reinforcement, so that all kinds of reinforcement in the beam form the reinforcement of the reinforcement skeleton. Stirrups are divided into rebar, round steel and cold-drawn low-carbon steel wire stirrups according to materials. According to the shape, there are plane stirrups (four sides, eight sides, six sides, ring) and spiral stirrups. According to the stress situation, there are shear stirrups, restraint stirrups and distribution stirrups. According to the composition, there are single hoop, double hoop and multi hoop.
37. What is a waterstop? Answer: Water-stop belts are generally used for waterproofing of underground projects. Water stop is divided into water stop and water-swellable rubber.
1. Water stop is to use the high elasticity and compressive deformation ability of rubber to produce elastic deformation under various loads, so as to tighten the seal, effectively prevent water leakage and seepage of building components, and play a role in shock absorption and buffering. In many engineering buildings, there are certain expansion requirements between civil engineering and water-soil structure, and there are also problems such as waterproof and shockproof. Therefore, the adoption and installation of rubber water stop is an effective means to solve the above problems. It is mainly used for permanent deformation joints that must be set when pouring concrete, such as canals, tunnel exits, retaining dams and water pipelines. E-type series water stop.
2. Water-swellable rubber is a new product recently developed. This product is a kind of water-swellable polymer added to rubber, which not only has the properties of ordinary rubber products, but also has the unique properties of self-swelling in water. It is a new waterproof material, which can stop water with water, and its waterproof effect is more reliable than ordinary rubber. This product is synthesized from a variety of polymer chemical materials, and its strength is higher than that of ordinary putty, especially suitable for waterproof engineering.
38. What is cold working? Answer: It usually refers to metal cutting, that is, cutting off the redundant metal layer from the metal material (blank) or workpiece with a tool, so that the workpiece can obtain a certain shape, dimensional accuracy and surface roughness. Such as turning, drilling, milling, planing, grinding and broaching.
In metal technology, corresponding to hot working, cold working refers to the processing technology that causes metal plastic deformation below recrystallization temperature, such as cold rolling, cold drawing, cold forging, stamping, cold extrusion and so on. Cold working deformation resistance is great, and work hardening can be used to improve the hardness and strength of the workpiece and form metal at the same time. Cold working is suitable for machining metal parts with small cross-section size and high requirements for machining size and surface roughness.
39. What is a parapet? A: It refers to the low wall with the outer wall higher than the roof.
40, what is the construction project bidding? Answer: Bidding for construction projects refers to a legal act that the construction unit (owner) issues a notice to the proposed project, attracts the contractors of the construction project to participate in the competition by legal means, and then selects the one with superior conditions to complete the construction task through legal procedures.
Bidding for construction projects: refers to the legal act that the contractor of construction projects who has obtained the bidding qualification after special examination fills in the tender to the tenderer within the specified time according to the requirements of the bidding documents, so as to win the bid.
4 1. What is a transverse wall? What is a vertical wall? (1) The transverse wall is a wall arranged along the width direction of the building.
(2) The longitudinal wall is a wall arranged along the length of the building.
42, what is the horizontal wall bearing, vertical wall bearing, vertical and horizontal wall mixed bearing? What are their advantages and disadvantages? (1) The bearing capacity of the transverse wall is to put the beam or plate on the transverse wall. The advantages are that the transverse wall is dense, the transverse stiffness is large, the seismic capacity is strong, the window opening flexibility of the external wall is large, and it is easy to organize running water; The disadvantage is that the amount of materials used is large and the size of the bay is not flexible enough.
(2) Vertical wall bearing is to put the beam or plate on the vertical wall. The advantages are flexible building zoning and low material consumption; The disadvantage is that the rigidity is poor and the limitation of window opening on the external wall is great.
(3) The mixed bearing of vertical and horizontal walls is to put beams or plates on the vertical and horizontal walls at the same time.
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The advantages are flexible room layout and good overall rigidity; The disadvantage is that there are many types of beams and slabs used, and the construction is more troublesome.
43, what is the standard specification of ordinary clay brick?
A: The standard specification of an ordinary clay brick is 240mm long,115mm wide and 53mm thick. The width of mortar joint is 10mm, so the ratio of length to width of standard brick is (24010): (11510): (5310) = 4: 2: 60. 1 m3 The standard brick consumption for mass brick masonry is 5 12 blocks (including mortar joints).
44. What are cis-brick and ding-brick? What are sleeping bricks and bucket bricks? (1) along the brick refers to the length of the brick along the wall; Ding brick refers to the width of brick along the wall.
(2) Tiled bricks are called sleeping bricks; Brick side masonry is called bucket brick.
45. What is a lintel? What is its function? Answer: lintels are beams above the openings of doors and windows. Their function is to bear the load on the upper part of the door and window opening and transfer it to the walls on both sides of the door and window to prevent the door and window frame from being crushed or deformed. The length of lintel is generally the span of doors and windows plus 500mm.
46. What is a ring beam? What is its function? Answer: Ring beam, also called "waist hoop", is a continuous and closed horizontal beam set on the wall. Its function is to strengthen the integrity and spatial stiffness of the whole building, resist the uneven settlement of the building and improve the seismic capacity of the building.
47. What is a constructional column? What is its function?
A: The constructional column is a vertical component set at the main corner of the wall, and its function is to form a spatial skeleton with the ring beam, so as to improve the overall stiffness and overall ductility of the building, inhibit the development of cracks in the wall, and thus increase the seismic capacity of the building.
48. What is deformation joint? A: When the house is affected by unfavorable external factors such as temperature change, uneven settlement of adjacent parts and earthquake collision, the whole building will be deformed and cracked. In order to avoid such damage to the house, it is often artificially divided into several independent units to ensure that they do not interfere with each other during deformation, and the gap between these units is the deformation joint.
49, deformation joints are divided into several types? What are their respective setting principles? Answer: According to different external failure factors, deformation joints are divided into three types, namely expansion joints, settlement joints and seismic joints.
(1) expansion joint: expansion joint, also known as temperature joint, is set in consideration of the influence of temperature change on buildings. The cold and hot changes of climate will cause the expansion and contraction of building materials and components, and the building walls that are too long and too wide will crack or even be destroyed due to this expansion and contraction. Therefore, the expansion joints of buildings that are too long and too wide are divided into several sections to ensure the free expansion and contraction of each section, thus avoiding wall cracking. The joint width of expansion joint is 20~30mm, and elastic thermal insulation material is filled inside.
(2) Settlement joint: Settlement joint is set in consideration of possible uneven settlement in some parts of the house. When the height difference, load, structural form and foundation bearing capacity of adjacent parts of a building are quite different, or the plane shape of the building is complex or the conjoined building is built in stages, uneven settlement may occur in the adjacent parts, resulting in cracking, inclination and even collapse of the whole building. Therefore, settlement joints are set to divide the building into several independent units, so as to ensure that each unit can settle independently and not restrict each other. The width of settlement joint is generally 30~ 120mm.
(3) Anti-seismic joints: Considering the earthquake damage of buildings, anti-seismic joints are set. For multi-storey masonry buildings located in the earthquake-resistant area, when the building height difference is more than 6m, or when the building has staggered floors and the height difference is large, or when the structural rigidity and quality of different parts of the building are completely different, adjacent parts of the building may collide with each other and cause damage during the earthquake. Therefore, it is necessary to design seismic joints and divide the building into several independent units with simple shape and uniform structural stiffness to avoid earthquake damage. The width of seismic joint is generally 50 ~100 mm.
Construction contractor's price
Template: 20-50 yuan /m2 (adhesive surface)
Concrete: 45-50 yuan/Li
Reinforcement: 600-780 yuan/ton, or 40-50 yuan /m2 binding 18-28/m2.
Masonry: 280-350 yuan/Li
Plastering: 12-25 yuan /m2 (excluding doors and windows and scaffolding).
Brick paste: 28/ m2
Indoor floor tile (600*600)28 yuan /m2
Kick line: 12 yuan/m
Interior wall brick: 30 yuan/m2 (including chamfering)
Stair stone: 35 yuan/m2, pedal edge: 16 yuan/m.
Gypsum board ceiling: 26 yuan (flat shed) aluminum gusset plate hanging project: 35 yuan /m2.
Partition of squatting platform: 180-360 yuan/rubbing position.
Dabai latex paint: 12 yuan/m2.
External wall brick: 35-65 yuan /m2.
Dry hanging mushroom stone on external wall: 80- 120 yuan /m2.
Roof tile: 33 yuan/m2.
Water heating: 16 yuan/m2 (building area)
Electrical lighting: 18 yuan/m2.
Scaffolder: 12- 18 yuan/m2
Real estate construction cost (calculated by building square meters)
1. Pile foundation works (if any): 70~ 100 Yuan /m2.
2. Reinforcement: 40~75KG/ m2 (low multi-story content and high high-story content), which is 160~300 yuan/m2.
3. Concrete: 0.3~0.5 m3/m2 (low multi-layer content and high-rise content), total 100 ~ 165 yuan /m2.
4. Masonry works: 60~ 120 yuan /m2 (high multi-storey content and low high-rise content).
5. Plastering works: 25~40 yuan /m2.
6. Exterior wall engineering (including thermal insulation): 50~ 100 yuan/square meter (calculated by general paint, it may be as high as 300~ 1000 yuan/square meter if it is stone or curtain wall).
7. Indoor water and electricity installation project (including fire protection): the blank room is 35 square meters, and the hardcover room is 80~ 120 yuan/square meter (according to the grade of the community, the multi-storey room is slightly lower).
8. Roofing works: 15~30 yuan /m2 (high multi-layer content and low high-rise content).
9. Doors and windows engineering (excluding entrance doors): The building area is about 0.25~0.5 square meters per square meter (closely related to design and whether it is high-grade, with a large proportion of high-grade), and the cost is 90~300 yuan/square meter, generally 90~ 150 yuan/square meter. If you use high-grade aluminum alloy doors and windows, it may reach 300 yuan/m2.
10, earthwork, porch, flue and public parts decoration works: 30~ 150 yuan /m2 (it has a great relationship with the grade of the community, and the higher the grade, the higher the cost).
1 1. Basement (if any): the cost is increased by 40~ 100 yuan /m2 (the multi-storey content is higher and the high-rise content is lower).
12. Elevator project (if any): 40~200 yuan /m2, which is closely related to elevator grade, elevator number and floor number. General project is about 100 yuan /m2.
13, labor cost: 130~200 yuan /m2.
14, outdoor supporting works: 30~300 yuan /m2, generally about 70~ 100 yuan /m2.
15, formwork, support and scaffolding works (cost): 70~ 150 yuan /m2.
16, tower cranes, people and goods elevators, lifts and other construction machinery (about 5~8% of the total cost: about 60~90 yuan/m2).
17. Temporary facilities (site temporary facilities such as living quarters, office areas, warehouses and roads (production rooms such as water, electricity, sewage, video and production sheds): 30~50 yuan /m2.
18. Expenses for inspection, testing, formalities, transportation and communication: 10~30 yuan /m2.
19, contractor management fee, data, labor insurance, profit and other expenses (about 10%): the sum of the above * 10%=90~ 180 yuan /m2.
20. Pay various national taxes and fees (3.3 ~ 3.5% of the total cost): 33 ~ 70 yuan/square meter, and the high-grade ones may be as high as 100 yuan/square meter.
Not counting fine decoration, the general cost is about1000 ~ 2,000 yuan/square meter, and the high-grade residential area can reach more than 3,500 yuan. The above does not include the cost of corruption brought about by the development of some state-owned enterprises. Fine decoration costs are generally 500~ 1500 yuan/square meter, depending on the level. There is also a simple decoration of 300 yuan/m2, and even an ultra-high-grade decoration of 3000~ 10000 yuan/m2 (carrying a bag).
2 1. Design fee (including the fee for the preliminary design concept period): 15~ 100 Yuan/m2.
22. Supervision fee: 3~30 yuan /m2.
23. Agency fees for advertising, planning and sales: generally 30~200 yuan /m2, and the highest can reach more than 500 yuan /m2.
24. Land cost: generally, the urban area of second-tier cities (old suburbs) is 70- 1 10,000/mu, and the plot ratio is generally 1.0-2.0, so the converted house price is: 525- 1500 yuan/square meter, and the urban area is generally 2 million yuan/mu. The converted house price is: The unilateral cost of land in third-tier cities and counties is relatively low, generally 100~500 yuan/square meter, and some are as high as 2000 yuan/square meter.
25. Land taxes and upfront fees are generally about 15% of the land costs, while those in second-tier cities are generally 100~500 yuan/m2, and the standards vary from place to place.
Conclusion: The capital construction cost is fixed. Even if the relocation house is built according to the national minimum standard, the cost is hardly lower than 1 1,000 yuan/square meter. In fact, the construction and installation cost of multi-storey ordinary commercial housing is about 1200 yuan/m2, and that of small and high-rise ordinary commercial housing is about 1500~ 1800 yuan/m2. The higher the grade, the higher the cost.
The main benefits are: the grade of the community, land fees paid to the government and local government taxes and fees, advertising planning and sales costs, decoration costs and so on. In addition, the developer's development quality also has a certain relationship. If the price is kept down, the quality will be worse. The cost of private developers is indeed lower than that of state-owned/government developers, mainly for two reasons. First, most private enterprises focus on efficiency, and their costs are generally well controlled. Second, the corruption cost of private enterprises is relatively lower. Whatever the reason, the cost of the same quality community will not exceed 100~200 yuan /m2.
A square 12 wall needs 64 standard bricks 18 wall needs 96 standard bricks 24 wall needs 128 standard bricks 37 wall needs 192 standard bricks 49 wall needs 256 standard bricks.
Calculation formula: the consumption of 240 wall bricks per cubic meter is1(0.24 * 0.12 * 0.6), and the consumption of 370 wall bricks per cubic meter is 1/(0.37*0. 12*0.6).
1. Consumption of concrete and steel for ordinary houses:1; Multi-story masonry building: 30KG/m2 reinforced concrete: 0.3-0.33m3/m2.
2, multi-storey frame reinforcement 38-42kg/m2 concrete 0.33-0.35m3/m2.
3. Small high-rise building 1 1- 12 layer steel bar 50-52kg/m2 concrete 0.35m3/m2.
4, high-rise 17- 18 layer steel bar 54-60 kg/m2 concrete 0.36m3/m2.
5, high-rise 30 h = 94m steel bar 65-75kg/m2 concrete 0.42-0.47m3/m2.
6, high-rise serviced apartment 28th floor H=90 meters steel bar 65-70 kg/m2 concrete 0.38-0.42 m3/m2.
7. The concrete consumption and steel consumption of the villa are between the multi-storey masonry residence and the high-rise11-12 floors. The above data are designed according to the regular structure of earthquake 7 degree zone.
Second, the budget economic index of common multi-storey residential building project 1, the area of outdoor doors and windows (excluding unit doors and security doors) accounts for 0.20-0.242 of the construction area, the formwork area accounts for 2.2-3 of the construction area, the outdoor plastering area accounts for 0.4-4 of the construction area, and the indoor plastering area accounts for 3.8 of the construction area.
Third, the construction efficiency 1. A Plaster workers posted 35 square meters a day. 2. A bricklayer lays red bricks a day 1000- 1800. 3. A bricklayer lays 800- 1000 bricks a day. 4. Ceramic tile15m2. 5. First scraping.
4. Basic data 1, concrete weight 2500KG/m32, reinforcement weight per linear meter 0.006 17*d*d3, dry sand weight 1500KG/m3, wet sand weight 1700KG/m34, and stone weight 224.
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