I-beam
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I-beam
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Product Description
Whether I-shaped steel is ordinary or light, due to the relatively high and narrow cross-sectional dimensions, the moment of inertia of the two main axes of the cross-section is quite different, so it can only be directly used for bending in the plane of its web. components or form them into lattice-type stressed components. It is not suitable to use axial compression members or members that are perpendicular to the web plane and are curved, which greatly limits its application range. I-beams are widely used in buildings or other metal structures.
Ordinary I-beams and light I-beams have relatively high and narrow cross-sectional dimensions, so the moment of inertia of the two main axes of the cross-section is quite different, which limits their application range. The use of I-beams should be selected according to the requirements of the design drawings.
When selecting I-beams in structural design, reasonable I-beams should be selected based on their mechanical properties, chemical properties, weldability, structural dimensions, etc.
The specifications are expressed as height × leg thickness × waist thickness. The main dimensions of the specifications can also be expressed by numbers. For example, No. 18 I-beam means an I-beam with a height of 18 cm. If the I-beams are of the same height, the corner code a or b or c can be added after the number to indicate it, such as 36a, 36b, 36c, etc. It is divided into ordinary I-beam, light I-beam and wide-flange I-beam. According to the height ratio of flange to web, it is divided into wide, medium and narrow wide flange I-beams. The first two are produced in sizes 10-60, that is, the corresponding heights are 10 cm-60 cm. Steel material with I-shaped cross section
I-beams are mainly divided into ordinary I-beams, light I-beams and wide-flange I-beams. According to the height ratio of flange to web, it is divided into wide, medium and narrow wide flange I-beams. The first two are produced in sizes 10-60, that is, the corresponding heights are 10 cm-60 cm. At the same height, lightweight I-beams have narrow flanges, thin webs, and light weight. Wide-flange I-beam is also called H-shaped steel. The cross-section feature is that the legs are parallel and there is no slope on the inside of the legs. It is an economical section steel and is rolled on a four-roll universal rolling mill, so it is also called "universal I-beam". Ordinary I-beams and light I-beams have formed national standards.
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