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The theoretical weight table of rebar is calculated according to the national standard theoretical size of rebar, which is directly related to the length size, cross-sectional area and allowable deviation of the size of the steel. Due to the allowable deviation of the steel during the manufacturing process, there is a slight difference between the theoretical weight calculated by the formula and the actual weight.
Gross weight. Gross weight is the symmetry of the "net weight", which is the total weight of the steel itself and the packaging material combined. Shipping companies calculate freight based on gross weight.
Net weight. Net weight is the symmetry of the "gross weight". The weight of the gross weight of the steel minus the weight of the packaging material, that is, the actual weight, is called the net weight. In the purchase and sale of steel, it is generally calculated by net weight.
Tare. The weight of the tare weight of the steel packaging material is called the tare weight.
Weight tons. Weight ton: The weight unit used when calculating freight is based on the gross weight of steel. The legal unit of measurement is tonnes (1000kg), and there are long tonnes (imperial weight unit short tonne (US unit of weight).
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Rebar belongs to miscellaneous steel and has a density of centimeters.
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It's simple. Each cubic meter is a ton.
The theoretical weight of 12 is kilogram meters, i.e. 9* kilograms).
7850 That's about 982 roots!
Multiplying the square of the radius of the rebar by 7850 gives the theoretical weight per meter of the rebar!
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It is better to give fish to fish than to give fish to fish.
I'll give you a formula:
m is the mass diameter * diameter * length).
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The density of the reinforcement is: The minimum standard for the density of building reinforcement is grams of cubic centimeters tons of cubic meters of cubic meters (kilograms) cubic decimeters.
The unit of measurement for calculating the theoretical weight of steel is kilograms (kg).
The density of ordinary carbon steel is gram cubic centimeters, and the steel grade is slightly different, such as manganese steel.
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The density of steel is: .
The minimum standard for the density of building reinforcement is grams of cubic centimeters tons of cubic meters of cubic meters (kilograms) cubic decimeters.
At the same time, the steel content of different types of buildings is different (brick-concrete buildings, frame structures, etc.), the steel content of buildings in different periods is also different, the force of foundations, columns, beams and bridges is different, and the steel content is also different, so it cannot be accurately given; And different design institutes, with different considerations, have different steel content in construction.
Rebar processing requirements:
When the steel bar is processed and produced, the steel bar processing table and the design drawing should be reviewed, check whether there are errors and omissions in the blanking table, each steel bar should be checked according to the material table to meet the requirements, after these two inspections, and then release the real sample according to the material table, and the trial production can be made in batches after passing the trial, and the processed steel bar should be stacked neatly and orderly.
If the reinforcement needs to be replaced in the construction, it is necessary to fully understand the design intent and the performance of the substitution material, strictly abide by the various provisions of the current reinforcement concrete design code, and not replace the low-strength reinforcement with high-strength reinforcement of the same area. The replacement of steel bars in important parts must be agreed by Party A and the design unit, and can only be replaced when there is a written notice.
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The density of the reinforcement is calculated according to the volume, and the volume of the reinforcement is used when calculating the weight of the reinforcement The length of the reinforcement is the nominal cross-sectional area.
Material name Density (GCM3).
421 Steel g cm 3
422 carbon steel g cm3
423 steel g cm 3
424 carbon steel g cm3
425 steel g cm 3
426 carbon steel g cm3
427 Industrial Pure Iron g cm3
428 Industrial Pure Iron g cm3
429 Industrial Pure Iron g cm3
430 alloy steel nickel-chromium steel 3
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The density of steel is: .
Calculation of the theoretical weight of steel.
The unit of measurement for calculating the theoretical weight of steel is kilograms (kg). The basic formula is:
w(weight, kg) = f(cross-sectional area mm2) l(length, m) density, g cm3) 1 1000
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The density of steel is: .
Round steel wire rod (kg m).
w= ×d×d
Rebar (kg m).
w= ×d×d
d= cross-sectional diameter mm
Rebar with a cross-sectional diameter of 12 mm, = 12 2=
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In the standard steel bar cross-sectional area table, according to the different steel bar cross-sections, the theoretical quality of a single root is also different, the unit: kg m. I think that's what you're trying to ask.
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Summary. Hello dear, I'm glad to answer for you, what is the calculation method of rebar density? A: Calculation.
Weight. The unit of measurement for calculating the theoretical weight of steel is kilograms (kg). The basic formula is:
w(weight, kg) = f(cross-sectional area m2) l(length, m) density, g cm3) 1 1000
The density of steel is:, and the formula for calculating the theoretical weight of rebar is as follows:
w=d=cross-sectional diameter mm, such as cross-sectional diameter of 12mm rebar, weight per meter =
What is the calculation method for rebar density?
Hello dear, I'm glad to answer for you, what is the calculation method of rebar density? Answer: The unit of measurement for calculating the weight of steel is kilograms (kg) for calculating the theoretical weight of steel. The basic formula is:
W(weight, kg) = F (cross-sectional area m2) L(length, m) density, g cm3) The density of 1 1000 steel is: , the theoretical weight calculation formula of rebar is as follows: w = cross-sectional diameter mm, such as cross-sectional diameter of 12mm rebar, weight per meter =
14. Diameter 9 meters long and weigh.
14×14×。A nine-meter-long fourteen-circle steel bar weighs. The light round steel bar is actually the small round steel and disc round steel of ordinary low carbon steel.
Deformed steel bars are ribbed steel bars with a surface, usually with 2 longitudinal ribs and transverse ribs evenly spaced along the length. There are three types of transverse ribs: spiral, herringbone, and crescent. It is expressed in millimeters of nominal diameter.
The nominal diameter of the deformed reinforcement is equivalent to the nominal diameter of the light round reinforcement with equal cross-section.
Rebar. The density of the steel is: , the formula for calculating the theoretical weight of the rebar is as follows: w = cross-sectional diameter mm, such as the cross-sectional diameter of 12mm of rebar, weight per meter =
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28. If you are a technician on the construction site, you should keep these things in mind and open your mouth to come. There are also various grades of concrete and mortar ratio.
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Rebar diameter * Rebar diameter * Example: 16 * 16 * 16 rebar is kilograms per meter.
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Generally in the following. This makes it so low that it cannot be measured on the Rockwell C scale (HRC) and is difficult to compare with the tools of HRC55 62.
Due to the congenital deficiency of its low carbon content, especially the lower carbon content, the hardness and strength of this kind of steel will not be greatly improved after heat treatment. However, due to the grain refinement after quenching and the formation of lath-like martensite, the strength and hardness can be slightly improved compared with that before quenching. After quenching, the hardness increases with the increase of carbon content.
There are three main factors affecting the change of rebar: first, production cost; the second is the relationship between supply and demand, and the factors affecting the relationship between supply and demand are relatively complex; The third is the speculative factor, which can sometimes lead to irrationality or irrationality. The factors affecting production costs include raw material costs and energy costs, and the factors affecting supply and demand include macroeconomic operation cycles, production and consumption, inventories, and import and export policies.
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6 to 25 threaded rebar is a common rebar material used in the construction field. They represent the diameter of the rebar in millimeters, respectively. Weight is a very important consideration in the construction process, as the correct weight ensures the safety of the building.
Below is a weight table for 6 to 25 threaded bars.
The weight of 6 mm threaded bars is kilograms per meter. Rebar of this size is commonly used in light concrete structures such as floor slabs, roof trusses, and other small building structures. This fine rebar is ideal for use in concrete because its smaller diameter allows it to blend better into the concrete, making the entire building stronger.
The weight of 25 millimeters of threaded bars is kilograms per meter. This type of coarse reinforcement is often used in areas such as the support and longitudinal reinforcement of large building structures. Because the diameter of this rebar has become larger, it can better withstand loads and thermal expansion, so it is often used in large structures such as high-rise buildings and bridges.
Whether you're working on a small erection or a large building structure, it's important to use the correct size of threaded reinforcement. Accurately calculating the weight of the reinforcement ensures the durability and quality of the building. The above is the weight table of the rebar, and we hope it can help you get better results in the construction field.
The rebar symbol is shown below
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