Rolled Steel Beam Sections Are Classified Into

The rolled steel beams are designated by the series to which beam sections belong abbreviated reference symbols followed by depth in mm of the section and weight in kn per metre length of the beam e g mb 225 0 312 kn m.

Rolled steel beam sections are classified into.

I sections which are also called as steel beams or rolled steel joist are extensively used as beams lintels columns etc. Ipe section used mainly for beams or beam column. Depth of section and weight per metre c. Rolled steel angle sections are classified as.

These products are mostly delivered in straight lengths rarely in folded bundles but never in coils. Ipn section is suitable for beam subjected to bending moment about its major axis. 1957 was published covering junior light weight medium weight wide flange and heavy weight beam sections. Discuss in forum.

Rolled steel beams are designated by indian standard series and its a. These are available in various sizes ranges from 75 mm x 50 mm at 61 n per meter length to 600 mm x 210 mm at 995 n per meter length. In case of timber structures the simple bending formula m fz may be applied for rectangular beams up to 300 mm depth all rectangular beams solid circular beams only all square cross section beams. Hea heb and hem sections are primarily used for members subjected to bi moments or for heavy beam columns.

Section factor m 1 1400 t where t the thickness mm of the lower steel web and applies for beams made from all steel rolled sections and from welded steel plate. Beams manufactured from all rolled steel sections and from welded plate the section factor for passive protection system is calculated as. As per isi rolled steel beam sections are classified into a. Weight per metre and depth of its section b.

It consists two flanges and a web connected as shown in figure. Width of flange and weight per. Equal angles unequal angles bulb angles all the above. Hot rolled heavy sectional products in the form of beams are either steel joists or parallel flange beams.

An i beam also known as h beam for universal column uc w beam for wide flange universal beam ub rolled steel joist rsj or double t especially in polish bulgarian spanish italian and german is a beam with an i or h shaped cross section the horizontal elements of the i are flanges and the vertical element is the web i beams are usually made of structural steel and are. T sections are produced by cutting i sections into two halves. Most steel mills have rolling mill divisions that convert the semi finished casting products into finished products.