The procedure for using the alignment charts to determine th

The procedure for using the alignment charts to determine the effective length factor, K, for a column is as follows: 1. Calculate the factored axial load, Pu, on the column. It is assumed that at this stage, the girder and beam sizes, and the preliminary column sizes have already been determined.

Solution

Answer...

Effective length is depend on the types of support

and this is

1)both end fixed, effective length= •5 × original length(L)

2)both end hinged, eff. Length= L

3) one end fixed,other end hinged , eff. length= •707×L

4)one end fixed , other end free , eff.length= 2× L

Now for the factord load,

P = [(pie)^2 ×E×I]÷(Leff)^2

E=young modulus

I= moment of inertia