How do you calculate column size according to span?

According to column design and Thumb Rule, minimum column size for 7m span is 230mm×300mm (9″×12″) for 1 storey/single floor/ground floor/(G+0) residential building using M20 grade of concrete ratio (1:1.5:3) with Fe500 grade of steel when axial load 606kN is applied on each column.

What is the column size for 12m span?

Steel Column size for 12m span:- for this general thumb rule, we will assume a structure of G+1/ 2 storey, G+2/ 3 storey residential building or projects, on light load condition, size of a steel column or universal column or H beam or UC’s or H- iron or rolled steel section for 12m span should be 200UC or 8″×8″, which …

What is the column size for 9m span?

Beam depth for 9m span:– according to general Thumb Rule for residential building with rcc column, beam depth for 9m span should be 500mm,minimum beam size for 9m span is 12″×20″ (300mm × 500mm) in which depth of beam is 500mm and width is 300mm, using 2nos of reinforcement size T16 at top, 2nos of reinforcement size …

How far apart do wood columns need to be?

In general, wood columns are spaced every 8 to 10 feet depending on the strength of the floor beam above it and the load on this beam. Your local building code may state the size required for such posts. Or you may need to get such posts sized by a structural engineer.

What determines the size of the columns in a beam span?

The size of the columns depends on the total load on the columns. There are axial loads and lateral loads. Large beam spans induce bending moment not only in the beams, but also in columns which are pulled by the stresses in the beams. It is important to use advanced structural design software like ETabs or Staad pro.

How many floors can a beam span table support?

There are many beam span tables for all the different lumber species and also for the number of floors that are ultimately supported by this beam. The table below shows an excerpt from a maximum span for built-up Douglas fir floor beams table for supporting not more than one floor. There are several beam span tables for all the species of wood.

How much area can a 6×6 column support?

A 6×6 column can support 750 sq.ft; a 8×8 column can support 3000 sq.ft, and a 12×12 column 6000  sq.ft. each additional 2” can add 1500 sq.ft. of supported area. Example: a two‐story building made up of 4 25’x25’ bays.