Is the rebar diameter symbol ???

Formal typography is , which can only be counted as handwriting. The outer diameter is usually written in letters.

Denote. Nominal diameter.

It is usually denoted by DN.

The diameter of the reinforcement is written in letters.

If the diameter of the rebar is 8mm, it is denoted as 8. Use the Smart ABC Input Method.

Press "V" and then press the number key 6, if you use the Sogou input method.

You can use the soft keyboard directly.

Extended Information: The way to express the diameter of a circle is: Greek letters.

phi, pronounced faì) plus the letter that represents this circle. e.g. o, a, back connection =, e.g. a=30mm. In drawing and engineering terminology, the diameter can be directly represented by adding numbers, for example: 30.

Note: 1. Since it is the standard writing in AutoCAD, in addition to the Greek letter phi, it can also be used to represent the diameter, but it should be noted that software that does not support Unicode may not be able to display this character normally, of course, there are not many software that does not support Unicode.

2. Unicode decimal.

It is possible to use Alt+ numeric input on the software that uses the Unicode input method (the software that uses the Unicode input method includes Excel, Word and other office software, QQ, etc.). GBK decimal is the software that uses the GBK input method with ALT+ digital input (most software uses the GBK input method, such as: Notepad, AutoCAD, browser, etc.).

The symbol of the diameter of the reinforcement is not, it should still be, because the symbol is input in some places due to the input method or different software operation is very different, there will be some non-standard signs. Please refer to the following ** is the standard symbol:

RebarDiameter symbolBe. Rebar Diameter Symbol The rebar diameter symbol is the diameter symbol of the circle, for example, the 12 large rebar representation method is 12.

The properties of the rebar

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

The form of all these tests simulates the process processing methods that may be involved in the actual use of the material to varying degrees, such as the ordinary steel bar needs to be hooked or bent to form, and the prestressed steel wire sometimes needs to be wound, etc., and its purpose is to assess the ultimate bearing capacity of the material to these specific plastic deformations, so the process performance is also the plastic requirement of the material, and it is common with the above-mentioned ductility requirements, generally speaking, the steel with large elongation has good process performance.

However, compared with the unidirectional stress state during tensile tension, the stress state of the process performance test is much more complex, and the type and size of the sample deformation are different in each direction, and the structure of the steel is different.

Grain size, harmful residual element content, especially any internal and surface defects such as cracks, inclusions, etc., that affect the continuous deformation may affect and lead to the failure of the test.

Summary. In construction work, the diameter of the reinforcement is usually represented by the following symbols:1

Indicates the diameter of the rebar and is often used in drawing design. 2. d：

Indicates the diameter of the rebar and is commonly used in technical standards and specifications. 3. d：

Indicates the minimum thickness of the protective layer of the reinforcement column and beam. For example, 10 represents a rebar with a diameter of 10 mm. D16 indicates that the diameter of the rebar is 16 mm.

D is generally determined according to the requirements of the concrete protective layer, for example, in C30 concrete, the thickness of the reinforcement protective layer is required to be at least 25mm, and the minimum diameter can be determined according to this requirement.

In construction work, the diameter of the rebar is usually represented by the following symbol: Spike grip 1Indicates the diameter of the rebar and is often used in drawing design.

2.d: Represents the diameter of the steel bar, which is often used in the standards and specifications of the technical code family.

3.d: indicates the minimum thickness of the protective layer of the reinforcement column and beam.

For example, 10 represents a rebar with a diameter of 10 millimeters. D16 indicates that the diameter of the rebar is 16 mm. D is generally determined according to the requirements of the concrete protective layer, for example, in C30 concrete, the thickness of the reinforcement protective layer is required to be at least 25mm, and the minimum diameter can be determined according to this requirement.

In addition to the common rebar diameter symbols, there are some other symbolic representations in construction projects. For example:1

a: Indicates the distance between two rebars, which is often used to locate rebars. 2.

b: Indicates the width of the member, such as beams, plates, etc. 3.

h: indicates the height of the member, such as beam, plate, etc. 4.

l: Indicates the length or span of the component, such as beams, columns, etc. These bridgeback symbols are often used in conjunction with numbers to express specific dimensions and positional information.

It is very important for practitioners of the construction project to master these symbols. At the same time, in the process of drawing design and construction, attention should be paid to the selection of appropriate symbols, and ensure that the use of symbols is standardized and unified, so as to ensure the construction quality and the safety of the fierce wheel.

Reinforcement symbol refers to the symbol of reinforcement parameters, etc. The unit of measurement for calculating the theoretical weight of steel is kilograms (kg). When the steel bar is processed and produced, the steel bar processing table and the design drawing should be reviewed to check whether there are errors and omissions in the blanking table.

Each kind of steel bar should be checked according to the material table to meet the requirements, after these two inspections, and then according to the material table to release the real sample, trial production can be made in batches after passing the test, and the processed steel bar should be stacked neatly and orderly.

The diameter of the rebar is indicated by letters, if the diameter of the rebar is 8mm, it is denoted as 8.

Symbol typing method:

1. Use the intelligent ABC input method, press "V" and then press the number key 6, and then turn to the next page until the order F, that is"φ"Conform to the know.

2. If you use Sogou input method, you can directly use the soft keyboard.