25 steel bars weigh 10 meters, and 20 steel bars weigh more than one meter

The theoretical weight of the rebar is calculated by multiplying the square of the rebar diameter (mm) by the weight of the rebar per meter in a circle of 10 rebars. The weight of the rebar is proportional to the square of the diameter (radius).

g = weight per meter (kg) diameter of steel bar (mm) diameter of steel bar (mm) In fact, it is very simple to remember the weight of steel bars commonly used in construction projects: 6 kg 8 10 12 14 16 18 24

Steel bars below 12 (including 12) and 28 (including 28) are generally taken to three decimal places, and steel bars from 14 to 25 are generally taken to two decimal places.

18=2kg

20=22=3kg

25=I have experience in calculating formulas, you can calculate a ** yourself. You can also buy a book with **, which is also very convenient to use.

Simplified formula for calculating the theoretical weight of steel.

Material Name: Theoretical weight w(kg m).

Flat bars, steel plates, steel strips w width and thickness.

Square steel w side length 2

Round bars, wire rods, steel wires w diameter 2

Steel pipe w wall thickness (outer diameter - wall thickness).

Equilateral angle steel w edge thickness (2 side width - side thickness).

Unequal angle steel w side thickness (long side width + short side width - side thickness) I-beam w waist thickness [height + f (leg width - waist thickness)].

Channel w waist thickness [height + e (leg width - waist thickness)].

Just do the math. Hope it helps.

20 rebars weigh 2 48 kg per meter. The formula for calculating the meter weight of the steel bar is: diameter diameter.

So the weight of one meter of 20 steel bars is calculated as: 20 20 0 00617.

Reinforcement weight calculation:1. The formula for calculating the weight of rebar.

Formula: Diameter mm Diameter mm 0 00617 Length m.

2. The formula for calculating the weight of the steel pipe.

Formula: (Outer Diameter Wall Thickness) Wall Thickness mm 0 02466 Length m.

3. Formula for calculating the weight of round steel.

Formula: Diameter mm Diameter mm Length m.

4. The formula for calculating the weight of square steel.

Formula: Side Width (mm) Side Width (mm) Length (m).

Steel bars are mainly subjected to tensile stresses in concrete. Due to the action of ribs, the deformed steel bar has a greater bonding capacity with concrete, so it can better withstand the action of external force. Steel bars are widely used in various building structures. Especially large, heavy, lightweight, thin-walled and high-rise building structures.

The importance of 20 meters of steel is probably in kilograms.

20 is also marked in the steel bar to its diameter of 20mm, "This is the code of the first-class light round steel bar. The weight of the rebar = the diameter of the rebar * the diameter of the rebar *. The density of steel is:

Generally speaking, the nominal diameter of the steel bar is 8-50 mm, and the diameter that is often used is mm. At the same time, it should be known that steel bars mainly play a role in bearing tensile stress in concrete. The deformed steel bar plays the role of a rib, and if it is with concrete, it has a greater bonding capacity, so that it can better withstand external forces.

Reinforcement quantity calculation rules.

1. Reinforcement engineering should be distinguished from cast-in-situ and prefabricated components, different steel grades and specifications, respectively, according to the design length multiplied by the unit weight, calculated in tons.

2. When calculating the engineering quantity of reinforcement, if the design has specified the length of the reinforcement tower, it shall be calculated according to the specified tower length; If the design does not specify the length of the tower connection, it has been included in the loss rate of the reinforcement, and the length of the tower connection is not calculated. Joints such as electroslag pressure welding and sleeve extrusion of steel bars are calculated as units.

3. The pre-tensioned prestressed steel bar is calculated according to the external dimensions of the component, and the prestressed steel bar is pre-tensioned according to the reserved channel length of the prestressed steel bar specified in the design drawing, and different anchor types are calculated according to the following provisions

1) When screw anchors are used at both ends of low-alloy steel bars, the prestressed steel bars are reduced by the length of the reserved hole, and the screws are calculated separately.

2) When one end of the low-alloy steel bar adopts the head insert, and the other end of the screw anchor, the length of the prestressed steel bar is calculated according to the length of the reserved hole, and the screw is calculated separately.

3) When one end of the low-alloy steel bar adopts the emblem head insert, and the other end adopts the gang anchor, the prestressed steel bar increases, and the prestressed steel bar increases when the two ends use the gang anchor.

4) When the low-alloy steel bar adopts post-tensioned silicon self-anchoring, the length of the prestressed steel bar is increased.

5) When the length of the anchor channel of JM, XM and QM anchors is less than 20m, the length of the prestressed steel bar is increased by 1m; When the length of the channel is more than 20m, the length of the prestressed steel bar is increased.

6) The carbon steel wire adopts a tapered anchor, and when the hole length is less than 20m, the length of the prestressed steel bar is increased by 1m; When the length of the channel is more than 20m, the length of the prestressed steel bar increases.

7) When the two ends of the carbon steel wire are upset and rough, the length of the prestressed steel wire is increased and calculated.

A: 20 meters of steel bar. Diameter multiplied by diameter, d 0 5 m [Example] The diameter of the steel bar is 20mm, find its theoretical weight per meter?

Solution: 20 20

r�0�5×l×ɡ÷1/1000＝。

×d�0�5/4×l×ɡ×1/1000＝＝。

Theoretical weight = diameter * diameter * length * upstairs answer is correct.

Kilogram.

25 steel bar 1 meter weight is kilograms, diameter is 25 mm, the calculation formula is: weight = steel bar diameter squared length = 25 25 kg, which is an important data in the calculation of the weight of steel bars, it represents the weight of 10 steel bars per meter.

Rebar refers to the steel used for reinforced concrete and prestressed reinforced concrete, and its cross-section is round, sometimes square with rounded corners. Including round steel bars, ribbed steel bars, and torsion steel bars. The steel bar for reinforced concrete dendritic soil refers to the straight bar or wire strip steel used for reinforced concrete reinforcement, and its shape is divided into two types: light round steel bar and deformed steel bar.

25 rebar weighing kilograms per meter. 25 steel bar refers to the vertical is the diameter of the gap cavity of 25mm of the steel bar, the formula for calculating the theoretical weight of the steel bar is: weight = the square of the diameter of the steel bar multiplied by the length.

According to the formula, the weight of 25 steel bars = 25 times 25 times multiplied by 1 = kilograms. In addition, the weight will be different depending on the type of steel bar, so there will be a certain error in the data from the measurement circle, but the error will not be too large.

25 bars 12 meters weigh kilograms.

The formula is calculated as: weight The square of the diameter of the rebar Length 25 25 kg, which is an important data in the calculation of the weight of the rebar, which represents the weight of 10 rebar per meter.

Reinforcing steel refers to steel for reinforced concrete and prestressed reinforced concrete, which is circular in cross-section, sometimes square with rounded corners. Including round steel bars, ribbed steel bars, and torsion steel bars.

Properties of rebar:

The process performance of steel bars includes many items, and different requirements can be put forward according to the characteristics of different products, such as bending and reverse bending (reverse bending) tests for ordinary steel bars, and repeated bending, torsion, and winding tests for some prestressed steels.

The form of all these tests does not simulate the process heightening waxing method that may be involved in the actual use of the material, such as ordinary steel bars need to be hooked or bent to form, and prestressed steel wires sometimes need to be wound, etc., and its purpose is to assess the ultimate bearing capacity of the materials for these specific plastic deformations, so the process performance is also the plastic requirements of the materials, and the above-mentioned ductility (elongation) requirements are the same, generally speaking, the steel with large elongation has good process performance. <>

Hello dear, happy to answer your <>

The state cavity 0 rebar has a diameter of 20 mm and a length of about kilograms per meter. 20 rebar refers to a rebar with a diameter of 20 mm. Its weight per meter of length can be calculated by:

The first step is to calculate the cross-sectional area of the steel bar. According to the area formula of the circle, cross-sectional area = r. where r is the radius of the reinforcement, and the diameter of the 20 mm reinforcement is 10 mm, so the radius is 5 mm.

Substituting the nuclear trace value of r into the formula yields: cross-sectional area = * 5 = square millimeter. In the second step, the weight of the rebar per square millimeter is calculated.

The density of the steel bar is about 7850 kg cubic meters. Multiply the reinforcement density by the area per square millimeter to get the weight of the reinforcement per square millimeter: 7850 1000 1000 * = kilograms square millimeter.

In the third step, calculate the weight of the reinforcement per meter of length. Multiply the weight of the rebar per square millimeter by the cross-sectional area to get the weight per meter of length: *= kilogram meters Therefore, 20 rebar has a diameter of 20 millimeters and a length of about kilograms per meter.

Hello Dear is happy to answer this question for you. 20 steel bar slag one meter shouting Lu Jin. The formula for calculating the weight of the rebar is diameter * diameter * length. The calculation formula is: Catty. I hope mine is helpful to you and I wish you a happy life <>

The national standard for a diameter of 20 cm of steel bar is kilograms per meter. Because there is a formula for the theoretical calculation of construction reinforcement: multiply the square of the diameter by rounding 20 to the reinforcement: 20*20*.

Reinforcement refers to the steel mold material for reinforced concrete and prestressed reinforced concrete, and its cross-section is round, sometimes square with rounded corners. Including light round steel bars, ribbed steel bars, and torsion steel bars. The steel bar for reinforced concrete refers to the straight bar or wire strip steel used for reinforced concrete reinforcement, and its shape is divided into two types: light round steel bar and deformed steel bar, and the delivery state is straight bar and disc round.

The weight of the steel bar per meter is about that.

2. If you want to understand the forelimb weight of the steel bar, the method is very simple, you can directly calculate it through the formula, and the weight of the steel bar is the diameter of the steel bar multiplied by the diameter.

3. So as long as you know what the diameter of the steel bar is, you can know what the weight of the steel bar is, and the diameter of the 20 steel bar is 20mm, so as long as the diameter is brought in, you can know.