Section steel is a kind of strip steel with cross-sectional shape and size. Section steel can be divided into simple section steel and complex section steel (special section steel). The former refers to square steel, round steel, flat steel, angle steel and hexagonal angle steel. The latter refers to I-beam, channel steel, rail, window frame steel, bent steel and so on.
What is H-beam? Is this confidential?
H-beam is an economical and efficient profile with more optimized cross-sectional integral distribution and more reasonable strength-weight ratio. It is named because its cross section is the same as the English letter "H". Because all parts of H-beam are arranged at right angles, H-beam has the advantages of strong bending resistance, simple construction, cost saving and light weight in all directions, and has been widely used.
H-beam can be divided into hot-rolled H-beam and welded H-beam. Hot rolled H-beam can be divided into three types: wide flange H-beam (HW), middle flange H-beam (HM) and narrow flange H-beam (HN).
HW indicates that the height of H-beam and the width of flange are basically equal; Mainly used for steel core columns in reinforced concrete frame structure columns, also known as rigid steel columns; Mainly used for columns in steel structures.
HM is the ratio of H-beam height to flange width, which is about1.33 ~1.75. It is mainly used for steel structure: it is used as a steel frame column and a frame beam in a frame structure under dynamic load; For example: equipment platform
HN is the ratio of H-beam height to flange width greater than or equal to 2, which is mainly used for beams; The use of I-beam is equivalent to HN beam;
H- height; B- width; T 1- web thickness; T2— flange thickness; R-H beam with fillet radius is expressed as: height H× width B× web thickness t1wing thickness t2. For example, H-beam Q235B: 200×200 ×8× 12+02 is a wide flange H-beam with a height of 200mm, a web thickness of 200mm, a wing thickness of 12mm and a brand of Q235B.
The main materials of H-beam are Q235B, SM490, SS400, Q235B, Q345, Q345B, etc.
There are also H-beams with corrugated webs, which are not popularized. H-beam is the main component of workshop steel structure, steel column and steel beam, accounting for about 60% of workshop steel structure consumption. Traditional H-beam adopts flat composite plate, which consumes a lot of steel. While maintaining the same structural function, H-beam with corrugated webs can reduce the comprehensive material 15%-30% and the factory building cost 10%-20% or more. This H-beam with corrugated webs is a public law patent of Hubei Hongyi. Interested parties can learn more about it.
What does section steel I20B mean?
Don't talk about section steel in general, but I-beam (or channel steel) accurately.
20b I-beam: 200mm high; The width is118mm,
Wx is 423cm*3 and weighs 42 kg/m.
What is a steel column
Steel bars are embedded in concrete columns, which is a composite component to increase the shear capacity.
What is P-beam?
As the name implies, the section shape is P-beam.
What is an I-beam?
L-beam, also known as angle steel with unequal sides and thickness, is a new type of profile produced to meet the needs of large-scale ship construction.
When the height of section steel is the same as that of abdomen, the section coefficient and stiffness of L-section steel are greater than that of spherical flat steel. Under the condition of the same section coefficient, increase the storage capacity of the ship and improve the economic benefit; In addition, under the same section coefficient, the thickness of L-shaped steel plate is slightly thinner than that of spherical flat steel, which is beneficial to improve the weld quality.
Its specifications are as follows: web height (h× area width (b) × web thickness (t)× panel thickness (t), in millimeters.
Main uses: L-beam can be used not only for large ships, but also for marine engineering structures and building engineering structures with high requirements.
What is double split steel?
Double spliced channel steel can be assembled into square tube or back-to-back H-beam.
What is welding T-beam 5 points?
It is named because its cross section is the same as the English letter "T". There are two types of T-beams: 1. It is directly spliced by H-beam, and the use standard of T-beam is the same as that of H-beam (GB/T1KLOC-0/263-1998), so it is an ideal material to replace double angle steel welding. It has the advantages of strong bending capacity, simple construction, cost saving and light structure weight. 2. Hot-rolled once-formed T-beam is mainly used for mechanical and metal-filled steel.
What is C-beam?
C-beam refers to steel with a C-shaped cross section.
1, automatically processed and formed by C-beam forming machine.
2. These varieties are:
Galvanized C-beam, hot-dip galvanized cable tray C-beam, glass trough C-beam, glass curtain wall C-beam, trough C-beam, steel bar C-beam, double-arm C-beam, single-side C-beam, manual forklift C-beam, unequal-side C-beam, straight-side C-beam, hypotenuse C-beam, inner-rolled C-beam, roof (wall) purlin C-beam and automobile profile C.
What steel does A3 refer to?
A3 steel is not a profile, but a general term for ordinary carbon structural steel. Belong to the old standard! The new standard is Q 195 Q2 15 Q235.
Many people call them old.