Construction Cost Estimating


Classification of beam according to sizes and shapes

Beam is essential for any structure to transmit the imposed loads to the vertical members. Besides, structural constraints indicate specific essential conditions of shape, geometry and positions of beams. So, various types of beam sizes and shapes are found in construction.

Given below, some common types of shapes and sizes of beams :-

Rectangular – It is mostly found and contains cross section in the form of a rectangle having particular breadth (b) and depth (d). The proportion of b/d is restricted depending on the code of practice.

T-Beam – The main objective of this beam is to minimize the construction cost by setting the beams together with the slab throughout the arrangement of concrete.

It contains two major zones like the flange and web. The flange is normally situated in the slab whereas the web protrudes similar to the traditional rectangular beam. It results in minimizing the amount of necessary concrete for bearing the equivalent imposed loads.

L Beams – It is suitable in cases where architectural restriction enforce restrains on flange width for a T beam.

I Section – It is frequently utilized and built up with steel. It contains two flanges and a central vertical web that attaches the two. The dimensions and design of the beam is executed as per the code being applied.

Channel Section – It is generally defined as a C section. It is utilized in corners or circumstances which do not need complete flange width. In specific cases, two C sections may be retained jointly back to back to develop an I section.

Angles – Steel angles are generally utilized for bracket connections under tension or in circumstances where a very short span of beam is required.

Classification of beam according to sizes and shapes