Section beam
Encyclopedia
Section Beams are made of steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 and they have a specific lengths and shapes like -beam
I-beam
-beams, also known as H-beams, W-beams , rolled steel joist , or double-T are beams with an - or H-shaped cross-section. The horizontal elements of the "" are flanges, while the vertical element is the web...

, L, channel and I flanged beam. These types of section are usually used in steel structures and it is common to connected them with plates of steel.

Joints

There are three methods of connection and they are :
  • Rivet
    Rivet
    A rivet is a permanent mechanical fastener. Before being installed a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the buck-tail. On installation the rivet is placed in a punched or pre-drilled hole, and the tail is upset, or bucked A rivet...

    s
  • Bolts
  • Welding
    Welding
    Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, with pressure sometimes...



The strongest method of connection is the riveted method and it is the most used one.

Safety

There are some methods of calculation to see if the design of the truss or the construction is safe or not.
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